@charset "UTF-8";

/* ============================================================
   MbM Portfolio — Modern Minimal Redesign (2026)
   Fonts: Syne (display) + DM Sans (body)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@500;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&display=swap');

/* ─── @font-face fallback (Perplexity CDN kept as tertiary) ─── */
@font-face {
  font-family: 'FKGroteskNeue';
  src: url('https://r2cdn.perplexity.ai/fonts/FKGroteskNeue.woff2') format('woff2');
  font-display: swap;
}

/* ============================================================
   DESIGN TOKENS
   ============================================================ */
:root {
  /* Palette — primitives */
  --c-white:       #ffffff;
  --c-black:       #0a0a0b;
  --c-neutral-50:  #f8f8f7;
  --c-neutral-100: #f0f0ef;
  --c-neutral-200: #e4e4e3;
  --c-neutral-300: #c8c8c6;
  --c-neutral-400: #9a9a97;
  --c-neutral-500: #6b6b68;
  --c-neutral-600: #4a4a47;
  --c-neutral-700: #2e2e2c;
  --c-neutral-800: #1c1c1a;
  --c-neutral-900: #0a0a0b;

  /* Teal accent — refined */
  --c-teal-300: #5eead4;
  --c-teal-400: #2dd4bf;
  --c-teal-500: #14b8a6;
  --c-teal-600: #0d9488;
  --c-teal-700: #0f7873;
  --c-teal-800: #115e59;

  /* Status colors */
  --c-amber-500:  #f59e0b;
  --c-amber-bg:   rgba(245, 158, 11, 0.12);
  --c-amber-bdr:  rgba(245, 158, 11, 0.30);
  --c-emerald-500:#10b981;
  --c-emerald-bg: rgba(16, 185, 129, 0.12);
  --c-emerald-bdr:rgba(16, 185, 129, 0.30);
  --c-orange-500: #f97316;
  --c-orange-bg:  rgba(249, 115, 22, 0.12);
  --c-orange-bdr: rgba(249, 115, 22, 0.30);
  --c-red-500:    #ef4444;
  --c-red-bg:     rgba(239, 68, 68, 0.12);

  /* Category tag backgrounds */
  --color-bg-1: rgba(59, 130, 246, 0.08);
  --color-bg-2: rgba(245, 158, 11, 0.08);
  --color-bg-3: rgba(34, 197, 94, 0.08);
  --color-bg-4: rgba(239, 68, 68, 0.08);
  --color-bg-5: rgba(147, 51, 234, 0.08);
  --color-bg-6: rgba(249, 115, 22, 0.08);
  --color-bg-7: rgba(236, 72, 153, 0.08);
  --color-bg-8: rgba(6, 182, 212, 0.08);

  /* ── LIGHT MODE semantics (default) ── */
  --color-background:       var(--c-neutral-50);
  --color-surface:          var(--c-white);
  --color-surface-raised:   var(--c-white);
  --color-text:             var(--c-neutral-900);
  --color-text-secondary:   var(--c-neutral-500);
  --color-primary:          var(--c-teal-600);
  --color-primary-hover:    var(--c-teal-700);
  --color-primary-active:   var(--c-teal-800);
  --color-primary-rgb:      13, 148, 136;
  --color-border:           var(--c-neutral-200);
  --color-border-strong:    var(--c-neutral-300);
  --color-card-border:      var(--c-neutral-200);
  --color-card-border-inner:var(--c-neutral-100);
  --color-secondary:        rgba(0,0,0,0.05);
  --color-secondary-hover:  rgba(0,0,0,0.08);
  --color-secondary-active: rgba(0,0,0,0.12);
  --color-btn-primary-text: var(--c-white);
  --color-focus-ring:       rgba(13,148,136,0.35);
  --color-success:          var(--c-teal-600);
  --color-error:            var(--c-red-500);
  --color-warning:          var(--c-amber-500);
  --color-info:             var(--c-neutral-500);
  --color-success-rgb:      13,148,136;
  --color-error-rgb:        239,68,68;
  --color-warning-rgb:      245,158,11;
  --color-info-rgb:         107,114,128;
  --color-select-caret:     rgba(10,10,11,0.8);

  /* Sun icon */
  --color-sun: #f59e0b;

  /* Legacy compat vars */
  --color-teal-300:     var(--c-teal-300);
  --color-teal-400:     var(--c-teal-400);
  --color-teal-500:     var(--c-teal-500);
  --color-teal-600:     var(--c-teal-600);
  --color-teal-700:     var(--c-teal-700);
  --color-teal-800:     var(--c-teal-800);
  --color-teal-500-rgb: 20,184,166;
  --color-teal-300-rgb: 94,234,212;
  --color-red-400:      #f87171;
  --color-red-400-rgb:  248,113,113;
  --color-red-500:      var(--c-red-500);
  --color-red-500-rgb:  239,68,68;
  --color-orange-400:   #fb923c;
  --color-orange-400-rgb: 251,146,60;
  --color-orange-500:   var(--c-orange-500);
  --color-orange-500-rgb: 249,115,22;
  --color-gray-200:     var(--c-neutral-200);
  --color-gray-200-rgb: 228,228,227;
  --color-gray-300:     var(--c-neutral-300);
  --color-gray-300-rgb: 200,200,198;
  --color-gray-400:     var(--c-neutral-400);
  --color-gray-400-rgb: 154,154,151;
  --color-brown-600-rgb: 94,82,64;
  --color-slate-900:    var(--c-neutral-900);
  --color-slate-900-rgb: 10,10,11;
  --color-slate-500:    var(--c-neutral-500);
  --color-slate-500-rgb: 107,114,128;
  --color-charcoal-700: var(--c-neutral-700);
  --color-charcoal-800: var(--c-neutral-800);
  --color-cream-50:     var(--c-neutral-50);
  --color-cream-100:    var(--c-white);
  --color-black:        var(--c-black);
  --color-white:        var(--c-white);

  /* ── Typography ── */
  --font-family-base: 'DM Sans', 'FKGroteskNeue', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-family-display: 'Syne', 'DM Sans', sans-serif;
  --font-family-mono: 'Berkeley Mono', ui-monospace, 'SFMono-Regular', Menlo, Monaco, Consolas, monospace;

  --font-size-xs:   11px;
  --font-size-sm:   12px;
  --font-size-base: 14px;
  --font-size-md:   14px;
  --font-size-lg:   16px;
  --font-size-xl:   18px;
  --font-size-2xl:  22px;
  --font-size-3xl:  28px;
  --font-size-4xl:  36px;

  --font-weight-normal:   400;
  --font-weight-medium:   500;
  --font-weight-semibold: 600;
  --font-weight-bold:     700;

  --line-height-tight:  1.15;
  --line-height-snug:   1.35;
  --line-height-normal: 1.6;

  --letter-spacing-tight: -0.025em;
  --letter-spacing-snug:  -0.01em;

  /* ── Spacing scale ── */
  --space-0:   0;
  --space-1:   1px;
  --space-2:   2px;
  --space-4:   4px;
  --space-6:   6px;
  --space-8:   8px;
  --space-10:  10px;
  --space-12:  12px;
  --space-16:  16px;
  --space-20:  20px;
  --space-24:  24px;
  --space-32:  32px;
  --space-40:  40px;
  --space-48:  48px;
  --space-64:  64px;
  --space-80:  80px;
  --space-96:  96px;

  /* ── Border radius ── */
  --radius-sm:   4px;
  --radius-base: 8px;
  --radius-md:   10px;
  --radius-lg:   14px;
  --radius-xl:   20px;
  --radius-2xl:  28px;
  --radius-full: 9999px;

  /* ── Shadows ── */
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 8px rgba(0,0,0,0.06), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-lg: 0 12px 24px rgba(0,0,0,0.08), 0 4px 8px rgba(0,0,0,0.04);
  --shadow-xl: 0 24px 48px rgba(0,0,0,0.10), 0 8px 16px rgba(0,0,0,0.05);
  --shadow-card-hover: 0 20px 40px rgba(0,0,0,0.10), 0 4px 10px rgba(0,0,0,0.06);
  --shadow-inset-sm: inset 0 1px 0 rgba(255,255,255,0.6), inset 0 -1px 0 rgba(0,0,0,0.03);

  /* ── Animation ── */
  --duration-fast:   120ms;
  --duration-normal: 240ms;
  --duration-slow:   400ms;
  --duration-theme:  600ms;
  --ease-standard:   cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring:     cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-out:        cubic-bezier(0.0, 0.0, 0.2, 1);

  /* ── Layout ── */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;

  /* ── SVG carets ── */
  --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%230a0a0b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  --select-caret-dark:  url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f0f0ef' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

  /* ── Focus ── */
  --focus-ring:    0 0 0 3px var(--color-focus-ring);
  --focus-outline: 2px solid var(--color-primary);

  /* ── Status ── */
  --status-bg-opacity:     0.12;
  --status-border-opacity: 0.28;
}

/* ── DARK MODE ── */
[data-theme="dark"],
[data-color-scheme="dark"] {
  --color-background:        #0c0c0e;
  --color-surface:           #141417;
  --color-surface-raised:    #1a1a1e;
  --color-text:              #f0f0ef;
  --color-text-secondary:    rgba(240,240,239,0.55);
  --color-primary:           var(--c-teal-400);
  --color-primary-hover:     var(--c-teal-300);
  --color-primary-active:    var(--c-teal-500);
  --color-primary-rgb:       45,212,191;
  --color-border:            rgba(255,255,255,0.09);
  --color-border-strong:     rgba(255,255,255,0.15);
  --color-card-border:       rgba(255,255,255,0.08);
  --color-card-border-inner: rgba(255,255,255,0.05);
  --color-secondary:         rgba(255,255,255,0.06);
  --color-secondary-hover:   rgba(255,255,255,0.10);
  --color-secondary-active:  rgba(255,255,255,0.14);
  --color-btn-primary-text:  #0c0c0e;
  --color-focus-ring:        rgba(45,212,191,0.40);
  --color-success:           var(--c-teal-400);
  --color-error:             #f87171;
  --color-warning:           #fbbf24;
  --color-info:              var(--c-neutral-400);
  --color-success-rgb:       45,212,191;
  --color-error-rgb:         248,113,113;
  --color-warning-rgb:       251,191,36;
  --color-select-caret:      rgba(240,240,239,0.8);
  --color-sun:               #fbbf24;

  /* Legacy dark overrides */
  --color-teal-300-rgb: 45,212,191;
  --color-gray-200-rgb: 240,240,239;
  --color-gray-300-rgb: 200,200,198;
  --color-gray-400-rgb: 154,154,151;
  --color-teal-500-rgb: 20,184,166;
  --color-red-400-rgb: 248,113,113;
  --color-orange-400-rgb: 251,146,60;

  --shadow-xs: 0 1px 2px rgba(0,0,0,0.25);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.35), 0 1px 2px rgba(0,0,0,0.25);
  --shadow-md: 0 4px 8px rgba(0,0,0,0.40), 0 2px 4px rgba(0,0,0,0.28);
  --shadow-lg: 0 12px 24px rgba(0,0,0,0.50), 0 4px 8px rgba(0,0,0,0.35);
  --shadow-xl: 0 24px 48px rgba(0,0,0,0.60), 0 8px 16px rgba(0,0,0,0.40);
  --shadow-card-hover: 0 20px 40px rgba(0,0,0,0.55), 0 4px 10px rgba(0,0,0,0.35);
  --shadow-inset-sm: inset 0 1px 0 rgba(255,255,255,0.07), inset 0 -1px 0 rgba(0,0,0,0.30);

  --color-bg-1: rgba(56, 102, 223, 0.18);
  --color-bg-2: rgba(180, 83, 9, 0.18);
  --color-bg-3: rgba(21, 128, 61, 0.18);
  --color-bg-4: rgba(185, 28, 28, 0.18);
  --color-bg-5: rgba(107, 33, 168, 0.18);
  --color-bg-6: rgba(194, 65, 12, 0.18);
  --color-bg-7: rgba(190, 24, 93, 0.18);
  --color-bg-8: rgba(8, 145, 178, 0.18);
}

/* Media query fallback for dark mode (system pref) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]):not([data-color-scheme="light"]) {
    --color-background:        #0c0c0e;
    --color-surface:           #141417;
    --color-surface-raised:    #1a1a1e;
    --color-text:              #f0f0ef;
    --color-text-secondary:    rgba(240,240,239,0.55);
    --color-primary:           var(--c-teal-400);
    --color-primary-hover:     var(--c-teal-300);
    --color-primary-active:    var(--c-teal-500);
    --color-primary-rgb:       45,212,191;
    --color-border:            rgba(255,255,255,0.09);
    --color-card-border:       rgba(255,255,255,0.08);
    --color-card-border-inner: rgba(255,255,255,0.05);
    --color-secondary:         rgba(255,255,255,0.06);
    --color-secondary-hover:   rgba(255,255,255,0.10);
    --color-secondary-active:  rgba(255,255,255,0.14);
    --color-btn-primary-text:  #0c0c0e;
    --color-focus-ring:        rgba(45,212,191,0.40);
    --color-success:           var(--c-teal-400);
    --color-error:             #f87171;
    --color-warning:           #fbbf24;
    --color-border-secondary:  rgba(255,255,255,0.14);
    --color-select-caret:      rgba(240,240,239,0.8);
    --color-teal-300-rgb:      45,212,191;
    --color-gray-200-rgb:      240,240,239;
    --color-gray-300-rgb:      200,200,198;
    --color-gray-400-rgb:      154,154,151;
  }
}

[data-color-scheme="light"],
[data-theme="light"] {
  --color-background:        var(--c-neutral-50);
  --color-surface:           var(--c-white);
  --color-text:              var(--c-neutral-900);
  --color-text-secondary:    var(--c-neutral-500);
  --color-primary:           var(--c-teal-600);
  --color-primary-hover:     var(--c-teal-700);
  --color-primary-active:    var(--c-teal-800);
  --color-border:            var(--c-neutral-200);
  --color-card-border:       var(--c-neutral-200);
  --color-secondary:         rgba(0,0,0,0.05);
  --color-secondary-hover:   rgba(0,0,0,0.08);
  --color-secondary-active:  rgba(0,0,0,0.12);
  --color-btn-primary-text:  var(--c-white);
  --color-focus-ring:        rgba(13,148,136,0.35);
}

/* ============================================================
   BASE RESET & GLOBAL
   ============================================================ */
html {
  font-size: var(--font-size-base);
  font-family: var(--font-family-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  box-sizing: border-box;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--color-background);
  color: var(--color-text);
  transition:
    background-color var(--duration-normal) var(--ease-standard),
    color var(--duration-normal) var(--ease-standard);
}

html.theme-transition,
html.theme-transition * {
  transition:
    background-color var(--duration-theme) var(--ease-standard),
    color var(--duration-theme) var(--ease-standard),
    border-color var(--duration-theme) var(--ease-standard) !important;
}

*, *::before, *::after { box-sizing: inherit; }

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-family: var(--font-family-display);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
  letter-spacing: var(--letter-spacing-tight);
}

h1 { font-size: clamp(2rem, 4.5vw, 3rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2rem); }
h3 { font-size: var(--font-size-2xl); font-weight: var(--font-weight-semibold); }
h4 { font-size: var(--font-size-xl); font-weight: var(--font-weight-semibold); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-md); }

p { margin: 0 0 var(--space-16) 0; }

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-standard);
}
a:hover { color: var(--color-primary-hover); }

code, pre {
  font-family: var(--font-family-mono);
  font-size: calc(var(--font-size-base) * 0.93);
}
code {
  background: var(--color-secondary);
  border-radius: var(--radius-sm);
  padding: var(--space-1) var(--space-6);
}
pre {
  background: var(--color-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  padding: var(--space-16);
  margin: var(--space-16) 0;
  overflow-x: auto;
}
pre code { background: none; padding: 0; }

/* ── Layout ── */
.container {
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--space-24);
  max-width: var(--container-xl);
}

@media (max-width: 640px) {
  .container { padding: 0 var(--space-16); }
}

/* ── Utilities ── */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}
:focus-visible { outline: var(--focus-outline); outline-offset: 2px; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-4  { gap: var(--space-4);  }
.gap-8  { gap: var(--space-8);  }
.gap-16 { gap: var(--space-16); }
.hidden { display: none; }
.block  { display: block; }
.m-0  { margin: 0; }
.mt-8 { margin-top: var(--space-8); }
.mb-8 { margin-bottom: var(--space-8); }
.p-0  { padding: 0; }
.py-8 { padding: var(--space-8) 0; }
.px-8 { padding: 0 var(--space-8); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  padding: var(--space-10) var(--space-20);
  border-radius: var(--radius-base);
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  line-height: 1.4;
  cursor: pointer;
  border: none;
  text-decoration: none;
  position: relative;
  transition: all var(--duration-normal) var(--ease-standard);
  white-space: nowrap;
  -webkit-user-select: none;
  user-select: none;
}
.btn:focus-visible { outline: none; box-shadow: var(--focus-ring); }

/* Primary */
.btn-primary,
.btn.btn-primary,
.btn--primary {
  background: var(--color-primary);
  color: var(--color-btn-primary-text);
  box-shadow: 0 1px 2px rgba(var(--color-primary-rgb), 0.2);
}
.btn-primary:hover,
.btn.btn-primary:hover,
.btn--primary:hover {
  background: var(--color-primary-hover);
  color: var(--color-btn-primary-text);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(var(--color-primary-rgb), 0.28);
}
.btn-primary:active,
.btn.btn-primary:active,
.btn--primary:active {
  background: var(--color-primary-active);
  transform: translateY(0);
}

/* Secondary */
.btn-secondary,
.btn.btn-secondary,
.btn--secondary {
  background: var(--color-secondary);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover,
.btn.btn-secondary:hover,
.btn--secondary:hover {
  background: var(--color-secondary-hover);
  color: var(--color-text);
  transform: translateY(-1px);
}

/* Outline */
.btn--outline {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}
.btn--outline:hover {
  background: var(--color-secondary);
  border-color: var(--color-border-strong);
}

/* Sizes */
.btn--sm, .btn--xs { padding: var(--space-6) var(--space-12); font-size: var(--font-size-sm); border-radius: var(--radius-sm); }
.btn--lg { padding: var(--space-12) var(--space-24); font-size: var(--font-size-lg); border-radius: var(--radius-md); }
.btn--full-width { width: 100%; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none; }

/* ── Forms ── */
.form-group { margin-bottom: var(--space-20); }
.form-label {
  display: block;
  margin-bottom: var(--space-8);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  letter-spacing: 0.01em;
}
.form-control {
  display: block;
  width: 100%;
  padding: var(--space-10) var(--space-14, 14px);
  font-size: var(--font-size-md);
  font-family: var(--font-family-base);
  line-height: 1.5;
  color: var(--color-text);
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  transition:
    border-color var(--duration-fast) var(--ease-standard),
    box-shadow var(--duration-fast) var(--ease-standard);
  -webkit-appearance: none;
  appearance: none;
}
.form-control:focus {
  border-color: var(--color-primary);
  outline: none;
  box-shadow: var(--focus-ring);
}
textarea.form-control { resize: vertical; min-height: 120px; }
select.form-control {
  background-image: var(--select-caret-light);
  background-repeat: no-repeat;
  background-position: right var(--space-12) center;
  background-size: 16px;
  padding-right: var(--space-32);
}
[data-theme="dark"] select.form-control,
[data-color-scheme="dark"] select.form-control { background-image: var(--select-caret-dark); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) select.form-control { background-image: var(--select-caret-dark); }
}

/* ── Status badges ── */
.status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-10);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.02em;
}
.status--success { background: var(--c-emerald-bg); color: var(--c-emerald-500); border: 1px solid var(--c-emerald-bdr); }
.status--error   { background: var(--c-red-bg);     color: var(--c-red-500);     border: 1px solid rgba(239,68,68,0.28); }
.status--warning { background: var(--c-amber-bg);   color: var(--c-amber-500);   border: 1px solid var(--c-amber-bdr); }
.status--info    { background: var(--color-secondary); color: var(--color-text-secondary); border: 1px solid var(--color-border); }

/* ── Card base ── */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--duration-normal) var(--ease-standard);
}
.card:hover { box-shadow: var(--shadow-md); }
.card__body, .card__header, .card__footer { padding: var(--space-16); }
.card__header, .card__footer { border-bottom: 1px solid var(--color-card-border-inner); }

/* ============================================================
   NAVIGATION
   ============================================================ */
.site-header { position: relative; }

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(var(--color-background, 248,248,247), 0.82);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--duration-normal) var(--ease-standard), border-color var(--duration-normal) var(--ease-standard);
}
[data-theme="dark"] .navbar,
[data-color-scheme="dark"] .navbar {
  background: rgba(12,12,14,0.85);
}

.nav-container {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-24);
  padding: var(--space-12) var(--space-24);
  max-width: var(--container-xl);
  margin: 0 auto;
  width: 100%;
  position: relative;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-10);
  text-decoration: none;
}
.brand-logo {
  width: 36px; height: 36px;
  border-radius: 50%;
  object-fit: cover;
  border: 1.5px solid var(--color-border);
}
.brand-text { display: flex; flex-direction: column; gap: 1px; }
.brand-name {
  font-family: var(--font-family-display);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin: 0;
  letter-spacing: -0.02em;
  line-height: 1;
}
.logo-mark { display: inline-flex; align-items: baseline; }
.logo-mark__m { color: var(--color-text); }
.logo-mark__b { color: var(--color-primary); }
[data-theme="dark"] .logo-mark__m,
[data-color-scheme="dark"] .logo-mark__m { color: var(--color-text); }
.brand-subtitle {
  font-size: 10px;
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin: 0;
}

.nav-menu {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-link {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  padding: var(--space-6) var(--space-12);
  border-radius: var(--radius-full);
  transition: color var(--duration-fast) var(--ease-standard), background var(--duration-fast) var(--ease-standard);
  position: relative;
  letter-spacing: 0.01em;
}
.nav-link:hover { color: var(--color-text); background: var(--color-secondary); }
.nav-link.active { color: var(--color-primary); background: rgba(var(--color-primary-rgb), 0.08); }
.nav-link.active::after { display: none; } /* remove underline style */

.nav-controls {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  justify-self: end;
}

/* Theme toggle */
.theme-toggle,
.lang-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  min-width: 36px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-standard);
  font-family: var(--font-family-base);
}
.theme-toggle:hover, .lang-toggle:hover {
  background: var(--color-secondary-hover);
  border-color: var(--color-border-strong);
  color: var(--color-text);
}
.lang-toggle {
  padding: 0 var(--space-12);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.lang-current { pointer-events: none; }

/* Sun / Moon icons */
.theme-toggle .sun-icon  { display: block; color: var(--color-sun); }
.theme-toggle .moon-icon { display: none;  color: var(--color-text-secondary); }
.theme-toggle .moon-icon path { fill: currentColor; stroke: currentColor; }

[data-theme="dark"]         .theme-toggle .sun-icon,
[data-color-scheme="dark"]  .theme-toggle .sun-icon  { display: none;  }
[data-theme="dark"]         .theme-toggle .moon-icon,
[data-color-scheme="dark"]  .theme-toggle .moon-icon { display: block; }
[data-theme="light"]        .theme-toggle .sun-icon,
[data-color-scheme="light"] .theme-toggle .sun-icon  { display: block; }
[data-theme="light"]        .theme-toggle .moon-icon,
[data-color-scheme="light"] .theme-toggle .moon-icon { display: none;  }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .sun-icon  { display: none;  }
  :root:not([data-theme="light"]) .theme-toggle .moon-icon { display: block; }
}

/* Mobile menu button */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px; height: 36px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  border-radius: var(--radius-base);
  cursor: pointer;
  padding: 0 9px;
  transition: background var(--duration-fast);
}
.mobile-menu-btn span {
  display: block;
  height: 1.5px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--duration-normal) var(--ease-standard);
}
.mobile-menu-btn:hover { background: var(--color-secondary); }

@media (max-width: 768px) {
  .nav-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: var(--space-16);
    right: var(--space-16);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-4);
    padding: var(--space-12);
    display: none;
    z-index: 100;
  }
  .nav-menu.mobile-open { display: flex; }
  .nav-link { padding: var(--space-10) var(--space-16); border-radius: var(--radius-base); text-align: left; }
  .mobile-menu-btn { display: flex; }
  .nav-container { grid-template-columns: auto 1fr auto auto; }
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
}

/* Subtle grid background */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.4;
  pointer-events: none;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 100%);
}

/* Glow blob */
.hero::after {
  content: '';
  position: absolute;
  top: -60px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 300px;
  background: radial-gradient(ellipse, rgba(var(--color-primary-rgb),0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero .container { position: relative; z-index: 1; }

.hero-content {
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-20);
  padding: var(--space-6) var(--space-16);
  background: rgba(var(--color-primary-rgb), 0.08);
  border: 1px solid rgba(var(--color-primary-rgb), 0.18);
  border-radius: var(--radius-full);
}
.hero-eyebrow::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--color-primary);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: var(--font-weight-bold);
  line-height: 1.08;
  letter-spacing: -0.035em;
  color: var(--color-text);
  margin-bottom: var(--space-24);
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: 600px;
  margin: 0 auto var(--space-32);
  font-weight: var(--font-weight-normal);
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-12);
  flex-wrap: wrap;
  margin-bottom: var(--space-48);
}
.hero-actions .btn-primary,
.hero-actions .btn.btn-primary {
  padding: var(--space-12) var(--space-28, 28px);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-full);
}
.hero-actions .btn-secondary,
.hero-actions .btn.btn-secondary { border-radius: var(--radius-full); }

/* Hero highlights list */
.hero-highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-16);
  list-style: none;
  padding: 0;
  margin: 0;
  text-align: left;
  max-width: 860px;
  margin: 0 auto;
}
.hero-highlights li {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-20);
  box-shadow: var(--shadow-xs);
  transition: border-color var(--duration-normal), box-shadow var(--duration-normal);
}
.hero-highlights li:hover {
  border-color: rgba(var(--color-primary-rgb), 0.30);
  box-shadow: var(--shadow-md);
}
.hero-highlights strong {
  display: block;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-6);
}
.hero-highlights span {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

@media (max-width: 640px) {
  .hero { padding: 100px 0 64px; }
  .hero-title { font-size: clamp(1.8rem, 8vw, 2.4rem); }
  .hero-highlights { grid-template-columns: 1fr; }
}

/* ============================================================
   SECTION COMMONS
   ============================================================ */
.projects      { padding: 80px 0; }
.certifications { padding: 80px 0; }
.about, .contact { padding: 80px 0; }

.section-header {
  text-align: center;
  margin-bottom: var(--space-48);
}
.section-title {
  font-family: var(--font-family-display);
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-tight);
  color: var(--color-text);
  margin-bottom: var(--space-12);
}
.section-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ── noScript ── */
.noscript-projects { padding: 80px 0; }
.noscript-projects h2 { font-family: var(--font-family-display); margin-bottom: var(--space-16); }

/* ============================================================
   PROJECT FILTERS
   ============================================================ */
.projects-filters { margin-bottom: var(--space-32); }

/* Search */
.search-container {
  position: relative;
  max-width: 440px;
  margin: 0 auto var(--space-24);
}
.search-input {
  width: 100%;
  padding: var(--space-10) var(--space-16) var(--space-10) var(--space-44, 44px);
  font-size: var(--font-size-md);
  font-family: var(--font-family-base);
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
  -webkit-appearance: none;
}
.search-input:focus {
  border-color: var(--color-primary);
  outline: none;
  box-shadow: var(--focus-ring);
}
.search-input::placeholder { color: var(--color-text-secondary); }
.search-icon {
  position: absolute;
  left: var(--space-16);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-secondary);
  pointer-events: none;
}

/* Category tabs */
.category-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-8);
  margin-bottom: var(--space-16);
}
.category-tab {
  padding: var(--space-6) var(--space-16);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  font-family: var(--font-family-base);
  color: var(--color-text-secondary);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-standard);
  letter-spacing: 0.01em;
}
.category-tab:hover {
  color: var(--color-text);
  border-color: var(--color-primary);
  background: rgba(var(--color-primary-rgb), 0.06);
}
.category-tab.active {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: rgba(var(--color-primary-rgb), 0.10);
}
.category-tab:focus-visible { outline: none; box-shadow: var(--focus-ring); }

/* Filters row */
.filters-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-12);
  margin-bottom: var(--space-16);
  flex-wrap: wrap;
}
.status-filter {
  padding: var(--space-8) var(--space-16);
  font-size: var(--font-size-sm);
  font-family: var(--font-family-base);
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  background-image: var(--select-caret-light);
  background-repeat: no-repeat;
  background-position: right var(--space-12) center;
  background-size: 14px;
  padding-right: var(--space-32);
  transition: border-color var(--duration-fast);
}
[data-theme="dark"] .status-filter,
[data-color-scheme="dark"] .status-filter { background-image: var(--select-caret-dark); }
.status-filter:focus { border-color: var(--color-primary); outline: none; box-shadow: var(--focus-ring); }

.clear-filters {
  padding: var(--space-8) var(--space-16);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  font-family: var(--font-family-base);
  color: var(--color-text-secondary);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--duration-fast);
}
.clear-filters:hover { color: var(--color-text); background: var(--color-secondary); }

.projects-count {
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}
.projects-count span:first-child {
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

/* ============================================================
   PROJECTS GRID & CARDS
   ============================================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-24);
  margin-top: var(--space-24);
  width: 100%;
}

@media (min-width: 1024px) {
  .projects-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-24);
  }
}
@media (min-width: 1280px) {
  .projects .container { max-width: var(--container-xl); }
  .projects-grid { grid-template-columns: repeat(3, 1fr); gap: var(--space-24); }
}
@media (max-width: 640px) {
  .projects-grid { grid-template-columns: 1fr; gap: var(--space-16); }
}

/* Card */
.project-card {
  position: relative;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-xs);
  overflow: hidden;
  cursor: pointer;
  transition:
    transform var(--duration-normal) var(--ease-standard),
    box-shadow var(--duration-normal) var(--ease-standard),
    border-color var(--duration-normal) var(--ease-standard);
  opacity: 1;
  transform: translateY(0) scale(1);
}
.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(var(--color-primary-rgb), 0.25);
}
.project-card:focus-visible { outline: var(--focus-outline); outline-offset: 3px; }
.project-card.filtered {
  opacity: 0;
  transform: scale(0.94) translateY(8px);
  pointer-events: none;
}

/* Invisible full-card link */
.project-card-link {
  position: absolute;
  inset: 0;
  z-index: 2;
  background: transparent;
  border: none;
  text-decoration: none;
}

/* Thumbnail area */
.project-image {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--color-secondary);
}
.project-image::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60%;
  background: linear-gradient(to top, rgba(0,0,0,0.35) 0%, transparent 100%);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--duration-normal);
}
.project-card:hover .project-image::after { opacity: 1; }
.project-image picture { display: block; width: 100%; height: 100%; }
.project-image img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease-out);
  display: block;
}
.project-card:hover .project-image img { transform: scale(1.06); }

/* Placeholder when no image */
.project-image img[src=""],
.project-image img:not([src]) {
  background: var(--color-secondary);
}

/* Card info */
.project-info { padding: var(--space-20) var(--space-20) var(--space-16); }
.project-header { margin-bottom: var(--space-12); }
.project-title {
  font-family: var(--font-family-display);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  letter-spacing: -0.015em;
  margin-bottom: var(--space-6);
  line-height: 1.25;
}
.project-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin-bottom: 0;
  /* Clamp to 3 lines */
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.project-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-14, 14px);
  padding-top: var(--space-14, 14px);
  border-top: 1px solid var(--color-card-border-inner);
}
.project-date {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

/* Status chips */
.project-status {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-8);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.02em;
}
.project-status.status-ongoing {
  background: var(--c-amber-bg);
  color: #92400e;
  border: 1px solid var(--c-amber-bdr);
}
[data-theme="dark"] .project-status.status-ongoing,
[data-color-scheme="dark"] .project-status.status-ongoing {
  color: #fcd34d;
}
.project-status.status-completed {
  background: var(--c-emerald-bg);
  color: #065f46;
  border: 1px solid var(--c-emerald-bdr);
}
[data-theme="dark"] .project-status.status-completed,
[data-color-scheme="dark"] .project-status.status-completed {
  color: #6ee7b7;
}
.project-status.status-prototype {
  background: var(--c-orange-bg);
  color: #7c2d12;
  border: 1px solid var(--c-orange-bdr);
}
[data-theme="dark"] .project-status.status-prototype,
[data-color-scheme="dark"] .project-status.status-prototype {
  color: #fdba74;
}

/* Tags */
.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  margin-top: var(--space-12);
}
.tag {
  display: inline-block;
  padding: var(--space-2) var(--space-8);
  background: var(--color-secondary);
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  border: 1px solid var(--color-border);
}
[data-theme="dark"] .tag,
[data-color-scheme="dark"] .tag {
  background: rgba(255,255,255,0.06);
  color: rgba(240,240,239,0.65);
  border-color: rgba(255,255,255,0.10);
}

/* No results */
.no-results {
  grid-column: 1 / -1;
  padding: var(--space-64) var(--space-24);
  text-align: center;
  color: var(--color-text-secondary);
}
.no-results-content { display: flex; flex-direction: column; align-items: center; gap: var(--space-12); }
.no-results-content svg { color: var(--color-text-secondary); opacity: 0.4; }
.no-results-content h3 { font-size: var(--font-size-xl); color: var(--color-text); }
.no-results-content p { font-size: var(--font-size-sm); margin: 0; }

/* Dark-mode card override */
[data-theme="dark"] .project-card,
[data-color-scheme="dark"] .project-card {
  background: var(--color-surface);
  border-color: var(--color-card-border);
}
[data-theme="dark"] .project-card:hover,
[data-color-scheme="dark"] .project-card:hover {
  border-color: rgba(45,212,191,0.3);
}
[data-theme="dark"] .project-description,
[data-color-scheme="dark"] .project-description {
  color: var(--color-text-secondary);
}

/* ============================================================
   PROJECT DETAIL VIEW
   ============================================================ */
.project-detail {
  padding: 120px 0 80px;
  display: none;
}
.project-detail__toolbar { margin-bottom: var(--space-24); }
.project-detail__back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  background: var(--color-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: var(--space-8) var(--space-16);
  cursor: pointer;
  transition: all var(--duration-fast);
}
.project-detail__back:hover { color: var(--color-text); background: var(--color-secondary-hover); }
.project-detail__content {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  padding: var(--space-32);
  overflow: hidden;
}
.project-detail__head {
  display: grid;
  gap: var(--space-32);
}
@media (min-width: 992px) {
  .project-detail__head { grid-template-columns: minmax(300px, 480px) 1fr; align-items: start; }
  .project-detail__content { padding: var(--space-48); }
}
.project-detail__media picture,
.project-detail__media img {
  display: block;
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: var(--color-secondary);
}
.project-detail__media img { object-fit: cover; }
.project-detail__info { display: flex; flex-direction: column; gap: var(--space-16); }
.project-detail__title {
  font-family: var(--font-family-display);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  letter-spacing: -0.03em;
  line-height: 1.1;
}
.project-detail__summary {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin: 0;
}
.project-detail__status-badge {
  align-self: flex-start;
  padding: var(--space-4) var(--space-16);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  background: rgba(var(--color-primary-rgb), 0.12);
  color: var(--color-primary);
  border: 1px solid rgba(var(--color-primary-rgb), 0.25);
}
.project-detail__meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-16);
  font-size: var(--font-size-sm);
  padding: var(--space-16);
  border: 1px solid var(--color-card-border-inner);
  border-radius: var(--radius-lg);
  background: var(--color-background);
}
.project-detail__meta-item { display: flex; flex-direction: column; gap: var(--space-4); }
.project-detail__meta-label {
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}
.project-detail__meta-value { font-size: var(--font-size-base); color: var(--color-text); }
.project-detail__tags { display: flex; flex-wrap: wrap; gap: var(--space-8); }
.project-detail__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
  font-size: var(--font-size-md);
  color: var(--color-text);
  margin-top: var(--space-32);
}
.project-detail__body p { margin: 0; line-height: 1.8; }
.project-detail__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-16);
  margin-top: var(--space-12);
}
.project-detail__actions .btn { min-width: 180px; }
.project-detail__empty { margin-top: var(--space-24); text-align: center; color: var(--color-text-secondary); }

/* Wazuh shots */
.wazuh-mode-shot { display: block; margin: var(--space-8) 0; }
.wazuh-shot { display: block; width: 100%; border-radius: var(--radius-base); }
.wazuh-shot-dark { display: none; }
[data-theme="dark"] .wazuh-shot-light  { display: none; }
[data-theme="dark"] .wazuh-shot-dark   { display: block; }
[data-color-scheme="dark"] .wazuh-shot-light { display: none; }
[data-color-scheme="dark"] .wazuh-shot-dark  { display: block; }

/* Detail view active state */
body.detail-view-active .hero,
body.detail-view-active #projects,
body.detail-view-active #insights,
body.detail-view-active #certifications,
body.detail-view-active #about,
body.detail-view-active #contact,
body.detail-view-active .footer,
body.detail-view-active .lightbox,
body.detail-view-active .project-modal { display: none; }
body.detail-view-active .project-detail { display: block; }
body.detail-view-active .navbar .nav-menu,
body.detail-view-active #mobile-menu-btn { display: none; }

[data-theme="dark"] .project-detail__content,
[data-color-scheme="dark"] .project-detail__content {
  background: var(--color-surface);
  border-color: var(--color-card-border);
}

/* ============================================================
   CERTIFICATIONS — CSS original conservé intégralement
   ============================================================ */
.cert-card {
  max-width: 960px;
  margin: 0 auto;
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  box-shadow: var(--shadow-md);
}

.cert-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-16);
  flex-wrap: wrap;
  margin-bottom: var(--space-16);
}

.cert-card__eyebrow {
  font-size: var(--font-size-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin: 0;
}

.cert-card__title {
  margin: var(--space-4) 0 0;
  font-size: var(--font-size-2xl);
  color: var(--color-text);
}

.cert-card__cta { white-space: nowrap; }

.cert-carousel { position: relative; }

.cert-carousel__viewport {
  overflow: hidden;
  transition: height 280ms ease;
  will-change: height;
}

.cert-carousel__track {
  display: flex;
  align-items: flex-start;
  transition: transform 350ms ease;
  will-change: transform;
}

.cert-carousel__track--no-transition { transition: none !important; }

.cert-carousel__slide { flex: 0 0 100%; min-width: 0; }

.cert-carousel__slide-header {
  text-align: center;
  padding: 0 var(--space-48);
  margin-bottom: var(--space-16);
}

.cert-carousel__slide-title {
  margin: 0;
  font-size: var(--font-size-2xl);
  color: var(--color-text);
}

.cert-carousel__slide-subtitle {
  margin: var(--space-8) 0 0;
  color: var(--color-text-secondary);
}

.cert-carousel__media {
  display: flex;
  justify-content: center;
  padding: var(--space-8) var(--space-24) var(--space-24);
}

.cert-carousel__image {
  width: 100%;
  max-width: 880px;
  max-height: 420px;
  object-fit: contain;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-background);
}

.cert-carousel__arrow {
  position: absolute;
  top: 50%;
  --cert-arrow-x: 0%;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
  display: grid;
  place-items: center;
  cursor: pointer;
  z-index: 2;
  transform: translate(var(--cert-arrow-x), -50%);
  transition: transform 150ms ease, background 150ms ease;
}

.cert-carousel__arrow:hover {
  background: var(--color-secondary);
  transform: translate(var(--cert-arrow-x), calc(-50% - 1px));
}

.cert-carousel__arrow--prev {
  left: 0;
  --cert-arrow-x: calc(-100% - var(--space-8));
}

.cert-carousel__arrow--next {
  right: 0;
  --cert-arrow-x: calc(100% + var(--space-8));
}

/* ── Root-Me ── */
.cert-rootme {
  width: 100%;
  max-width: 980px;
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
  padding: var(--space-16);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  background: var(--color-background);
  box-shadow: var(--shadow-lg);
}

.cert-rootme__panel {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border-inner);
  background: var(--color-surface);
  padding: var(--space-16);
}

.cert-rootme__intro {
  display: grid;
  grid-template-columns: 132px 1fr;
  gap: var(--space-16);
  align-items: center;
}

.cert-rootme__logo {
  width: 132px;
  height: 132px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border-inner);
  background: var(--color-background);
  display: grid;
  place-items: center;
  padding: var(--space-12);
}

.cert-rootme__logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

[data-color-scheme="dark"] .cert-rootme__logo img { filter: invert(1); }

.cert-rootme__eyebrow {
  margin: 0;
  font-size: var(--font-size-sm);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.cert-rootme__heading {
  margin: var(--space-8) 0 0;
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}

.cert-rootme__description {
  margin: var(--space-12) 0 0;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.cert-rootme__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-24);
  align-items: center;
  background: var(--color-background);
}

.cert-rootme__stat {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--space-12);
  align-items: flex-start;
  min-width: 0;
}

.cert-rootme__stat-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-base);
  border: 1px solid var(--color-card-border-inner);
  background: var(--color-background);
  display: grid;
  place-items: center;
  overflow: hidden;
  flex-shrink: 0;
}

.cert-rootme__stat-icon-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.cert-rootme__stat-icon-img--night { display: none; }

[data-color-scheme="dark"] .cert-rootme__stat-icon-img--day  { display: none; }
[data-color-scheme="dark"] .cert-rootme__stat-icon-img--night { display: block; }
[data-theme="dark"] .cert-rootme__stat-icon-img--day  { display: none; }
[data-theme="dark"] .cert-rootme__stat-icon-img--night { display: block; }

.cert-rootme__stat-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  min-width: 0;
}

.cert-rootme__stat-label,
.cert-rootme__stat-value {
  margin: 0;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}

.cert-rootme__stat-label { font-size: var(--font-size-lg); }
.cert-rootme__stat-value { color: var(--color-text-secondary); white-space: nowrap; }

.cert-rootme__progress {
  width: 100%;
  max-width: 100%;
  height: 6px;
  border-radius: 999px;
  background: rgba(var(--color-success-rgb), 0.2);
  overflow: hidden;
}

.cert-rootme__progress-bar {
  height: 100%;
  width: calc(var(--progress, 0) * 1%);
  min-width: 8px;
  border-radius: 999px;
  background: rgba(var(--color-success-rgb), 0.85);
  transition: width 500ms ease;
  will-change: width;
}

.cert-rootme__cta {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  text-decoration: none;
  color: var(--color-text);
  background: var(--color-background);
  font-weight: var(--font-weight-semibold);
  transition: transform 150ms ease, background 150ms ease;
}
.cert-rootme__cta:hover { background: var(--color-secondary); transform: translateY(-1px); }
.cert-rootme__cta-icon { color: var(--color-primary); flex-shrink: 0; }

/* ── TryHackMe ── */
.cert-tryhackme {
  width: 100%;
  max-width: 980px;
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
  padding: var(--space-16);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  background: var(--color-background);
  box-shadow: var(--shadow-lg);
}

.cert-tryhackme__panel {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border-inner);
  background: var(--color-surface);
  padding: var(--space-16);
}

.cert-tryhackme__intro {
  display: grid;
  grid-template-columns: 132px 1fr;
  gap: var(--space-16);
  align-items: center;
}

.cert-tryhackme__logo {
  width: 132px;
  height: 132px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border-inner);
  background: var(--color-background);
  display: grid;
  place-items: center;
  padding: var(--space-12);
}

.cert-tryhackme__logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.cert-tryhackme__heading {
  margin: 0;
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}

.cert-tryhackme__description {
  margin: var(--space-12) 0 0;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.cert-tryhackme__stats {
  display: flex;
  justify-content: center;
  margin-top: var(--space-16);
}

.cert-tryhackme__stats-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border-inner);
  background: var(--color-surface);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.cert-tryhackme__stats-img {
  width: 100%;
  max-width: 460px;
  height: auto;
  display: block;
}

.cert-tryhackme__stats-img--night { display: none; }

[data-color-scheme="dark"] .cert-tryhackme__stats-img--day   { display: none; }
[data-color-scheme="dark"] .cert-tryhackme__stats-img--night { display: block; }
[data-theme="dark"] .cert-tryhackme__stats-img--day   { display: none; }
[data-theme="dark"] .cert-tryhackme__stats-img--night { display: block; }
[data-color-scheme="dark"] .cert-thm-badge__image { mix-blend-mode: normal; }

.cert-tryhackme__badges { background: var(--color-background); isolation: isolate; }

.cert-thm-marquee {
  --thm-badges-visible: 3;
  --thm-badge-gap: var(--space-16);
  --thm-badge-width: 140px;
  --thm-marquee-speed: 70;
  overflow: hidden;
  position: relative;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #fff 1%, #fff 99%, transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0%, #fff 1%, #fff 99%, transparent 100%);
}

@media (max-width: 900px) { .cert-thm-marquee { --thm-badges-visible: 2; } }
@media (max-width: 560px) { .cert-thm-marquee { --thm-badges-visible: 1; } }

.cert-thm-marquee__track {
  display: inline-flex;
  gap: var(--thm-badge-gap);
  width: max-content;
  min-width: max-content;
  will-change: transform;
  backface-visibility: hidden;
  transform: translate3d(0, 0, 0);
}

.cert-thm-badge {
  flex: 0 0 var(--thm-badge-width);
  min-width: var(--thm-badge-width);
  display: block;
  padding: 0;
  border-radius: var(--radius-lg);
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  appearance: none;
  font: inherit;
  overflow: hidden;
  transition: transform 160ms ease, box-shadow 160ms ease;
}
.cert-thm-badge:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.cert-thm-badge__image {
  width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
  mix-blend-mode: multiply;
}
.cert-thm-marquee--paused .cert-thm-badge { transform: scale(1.04); box-shadow: var(--shadow-sm); }
.cert-thm-badge__meta { font-size: var(--font-size-sm); color: var(--color-text-secondary); white-space: nowrap; }

.cert-tryhackme__cta {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  text-decoration: none;
  color: var(--color-text);
  background: var(--color-background);
  font-weight: var(--font-weight-semibold);
  transition: transform 150ms ease, background 150ms ease;
}
.cert-tryhackme__cta:hover { background: var(--color-secondary); transform: translateY(-1px); }
.cert-tryhackme__cta-icon { color: var(--color-primary); flex-shrink: 0; }

/* ── ANSSI ── */
.cert-anssi {
  width: 100%;
  max-width: 980px;
  padding: var(--space-16);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  background: var(--color-background);
  box-shadow: var(--shadow-lg);
}

.cert-anssi__panel {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border-inner);
  background: var(--color-surface);
  padding: var(--space-16);
}

.cert-anssi__intro {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: var(--space-20);
  align-items: center;
}

.cert-anssi__logo {
  width: 160px;
  height: 160px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border-inner);
  background: var(--color-background);
  display: grid;
  place-items: center;
  padding: var(--space-16);
}
.cert-anssi__logo img { width: 100%; height: 100%; object-fit: contain; display: block; }

.cert-anssi__eyebrow {
  margin: 0;
  font-size: var(--font-size-sm);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}
.cert-anssi__heading {
  margin: var(--space-8) 0 0;
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}
.cert-anssi__description {
  margin: var(--space-12) 0 0;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ── RGPD ── */
.cert-rgpd {
  width: 100%;
  max-width: 980px;
  padding: var(--space-16);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  background: var(--color-background);
  box-shadow: var(--shadow-lg);
}

.cert-rgpd__panel {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border-inner);
  background: var(--color-surface);
  padding: var(--space-16);
}

.cert-rgpd__intro {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: var(--space-20);
  align-items: center;
}

.cert-rgpd__logo {
  width: 140px;
  height: 140px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border-inner);
  background: var(--color-background);
  display: grid;
  place-items: center;
  padding: var(--space-12);
}
.cert-rgpd__logo img { width: 100%; height: 100%; object-fit: contain; display: block; }

.cert-rgpd__eyebrow {
  margin: 0;
  font-size: var(--font-size-sm);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}
.cert-rgpd__heading {
  margin: var(--space-8) 0 0;
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}
.cert-rgpd__description {
  margin: var(--space-12) 0 0;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ── Cert list (générique) ── */
.cert-list { display: grid; gap: var(--space-12); }
.cert-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-12);
  padding: var(--space-12) var(--space-16);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  background: var(--color-secondary);
}
.cert-item__icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-base);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: rgba(var(--color-teal-500-rgb), 0.08);
  color: var(--color-primary);
}
.cert-item__body { display: flex; flex-direction: column; gap: var(--space-4); }
.cert-item__name { margin: 0; font-weight: var(--font-weight-semibold); color: var(--color-text); }
.cert-item__meta { margin: 0; color: var(--color-text-secondary); font-size: var(--font-size-sm); }
.cert-item__link { font-weight: var(--font-weight-medium); color: var(--color-primary); text-decoration: none; }
.cert-item__link:hover { text-decoration: underline; }

/* ── Responsive certifications ── */
@media (max-width: 768px) {
  .cert-card { padding: var(--space-20); }
  .cert-card__cta { width: 100%; justify-content: center; }
}

@media (max-width: 640px) {
  .cert-carousel__media { padding: var(--space-8) var(--space-16) var(--space-24); }
  .cert-anssi { padding: var(--space-12); }
  .cert-anssi__panel { padding: var(--space-12); }
  .cert-anssi__intro { grid-template-columns: 1fr; }
}

/* ============================================================
   ABOUT SECTION — Rich layout (2026 redesign)
   ============================================================ */

.about-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-24);
  align-items: start;
}

@media (max-width: 900px) {
  .about-layout {
    grid-template-columns: 1fr;
  }
}

.about-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
}

/* Cards */
.about-card {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--duration-normal);
}
.about-card:hover {
  border-color: rgba(var(--color-primary-rgb), 0.25);
}

/* Bio card */
.about-card--bio {
  display: flex;
  gap: var(--space-16);
  align-items: flex-start;
}
.about-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-border);
  flex-shrink: 0;
}
.about-bio {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  line-height: 1.75;
  margin: 0;
}

/* Info card (formation + experience) */
.about-card--info {
  display: flex;
  flex-direction: column;
  gap: var(--space-20);
}
.about-divider {
  height: 1px;
  background: var(--color-border);
}
.about-info-block {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.about-label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: var(--color-primary);
  margin: 0 0 var(--space-8);
}
.about-info-title {
  font-family: var(--font-family-display, var(--font-family-base));
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin: 0;
  letter-spacing: -0.01em;
}
.about-info-sub {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
}
.about-info-year {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  margin: var(--space-4) 0 0;
  background: rgba(var(--color-primary-rgb), 0.08);
  border: 1px solid rgba(var(--color-primary-rgb), 0.18);
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-10);
  display: inline-block;
  width: fit-content;
}

/* Timeline (experience) */
.about-timeline-item {
  display: flex;
  gap: var(--space-12);
  align-items: flex-start;
  margin-top: var(--space-8);
}
.about-timeline-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
  margin-top: 6px;
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.15);
}
.about-timeline-role {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin: 0;
}
.about-timeline-meta {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  margin: var(--space-2) 0 0;
}
.about-timeline-period {
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
}

/* Profiles card */
.about-card--profiles {
  padding: var(--space-20) var(--space-24);
}
.about-profiles-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  margin-top: var(--space-4);
}
.about-profile-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: var(--space-8) var(--space-12);
  border-radius: var(--radius-base);
  border: 1px solid var(--color-border);
  background: var(--color-background);
  transition: all var(--duration-fast);
}
.about-profile-link:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: rgba(var(--color-primary-rgb), 0.06);
  transform: translateX(3px);
}
.about-profile-link svg {
  flex-shrink: 0;
  opacity: 0.6;
}
.about-profile-link:hover svg {
  opacity: 1;
  color: var(--color-primary);
}

/* Stack card */
.about-card--stack {
  height: 100%;
}
.about-stack-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
  margin-top: var(--space-4);
}
.about-stack-category {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}
.about-stack-name {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
  margin: 0;
}
.about-tag-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
}
.about-tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-4) var(--space-10);
  background: var(--color-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  transition: all var(--duration-fast);
  cursor: default;
}
.about-tag:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(var(--color-primary-rgb), 0.07);
}

/* Dark mode overrides */
[data-theme="dark"] .about-card,
[data-color-scheme="dark"] .about-card {
  background: var(--color-surface);
  border-color: var(--color-card-border);
}
[data-theme="dark"] .about-profile-link,
[data-color-scheme="dark"] .about-profile-link {
  background: var(--color-secondary);
}

/* Mobile */
@media (max-width: 640px) {
  .about-card--bio {
    flex-direction: column;
  }
  .about-avatar {
    width: 56px;
    height: 56px;
  }
  .about-card {
    padding: var(--space-20);
  }
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-content { max-width: 560px; margin: 0 auto; }
.contact-form {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-xl);
  padding: var(--space-32);
  box-shadow: var(--shadow-sm);
}
.contact-form .btn-primary,
.contact-form .btn.btn-primary { width: 100%; border-radius: var(--radius-base); }
[data-theme="dark"] .contact-form,
[data-color-scheme="dark"] .contact-form {
  background: var(--color-surface);
  border-color: var(--color-card-border);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  padding: var(--space-48) 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-32);
}
.footer-column { display: flex; flex-direction: column; gap: var(--space-12); }
.footer-brand { display: flex; align-items: center; gap: var(--space-12); }
.footer-brand-name {
  font-family: var(--font-family-display);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  margin: 0;
  letter-spacing: -0.02em;
}
.footer-brand-note { font-size: var(--font-size-sm); color: var(--color-text-secondary); margin: 0; }
.footer-heading {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
  margin: 0;
}
.footer-links { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: var(--space-8); }
.footer-links a {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  transition: color var(--duration-fast);
}
.footer-links a:hover { color: var(--color-primary); }
.footer-badges { display: flex; flex-direction: column; gap: var(--space-8); }
.footer-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-8) var(--space-12);
  border-radius: var(--radius-base);
  background: var(--color-secondary);
  border: 1px solid var(--color-border);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* ============================================================
   MODALS & OVERLAYS
   ============================================================ */
/* Project modal */
.project-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-24);
}
.project-modal.active { display: flex; }
.project-modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
}
.project-modal-content {
  position: relative;
  z-index: 1;
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: var(--space-32);
  max-width: 480px;
  width: 100%;
  animation: modal-in 0.2s var(--ease-spring);
}
@keyframes modal-in {
  from { opacity: 0; transform: scale(0.94) translateY(8px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}
.project-modal-close {
  position: absolute;
  top: var(--space-16); right: var(--space-16);
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  border: none; background: var(--color-secondary);
  border-radius: var(--radius-base); cursor: pointer; color: var(--color-text-secondary);
  transition: all var(--duration-fast);
}
.project-modal-close:hover { background: var(--color-secondary-hover); color: var(--color-text); }
.project-modal-title { font-family: var(--font-family-display); font-size: var(--font-size-xl); margin-bottom: var(--space-12); }
.project-modal-description { font-size: var(--font-size-sm); color: var(--color-text-secondary); line-height: 1.7; margin-bottom: var(--space-24); }
.project-modal-actions { display: flex; gap: var(--space-12); }
.project-modal-actions .btn { flex: 1; }

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
}
.lightbox.active { display: flex; }
.lightbox-overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.92); cursor: pointer; }
.lightbox-content { position: relative; max-width: 90vw; max-height: 90vh; z-index: 1; }
.lightbox-close {
  position: absolute;
  top: -48px; right: 0;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-base);
  color: white;
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: background var(--duration-fast);
}
.lightbox-close:hover { background: rgba(255,255,255,0.2); }
.lightbox-image-container { border-radius: var(--radius-lg); overflow: hidden; }
.lightbox-image { max-width: 100%; max-height: 80vh; width: auto; height: auto; display: block; }

/* TryHackMe badge overlay */
body.thm-badge-modal-open { overflow: hidden; }
.thm-badge-overlay {
  position: fixed;
  inset: 0;
  z-index: 10001;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-24);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 180ms ease, visibility 0ms linear 180ms;
}
.thm-badge-overlay.is-active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition: opacity 180ms ease, visibility 0ms;
}
.thm-badge-overlay__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
}
.thm-badge-overlay__content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-16);
  width: min(420px, 90vw);
  padding: var(--space-24);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  background: var(--color-surface);
  box-shadow: var(--shadow-xl);
  transform: translateY(8px) scale(0.96);
  opacity: 0;
  transition: transform 180ms ease, opacity 180ms ease;
}
.thm-badge-overlay.is-active .thm-badge-overlay__content {
  transform: translateY(0) scale(1);
  opacity: 1;
}
.thm-badge-overlay__image { max-width: 100%; border-radius: var(--radius-base); }

/* ============================================================
   TOAST
   ============================================================ */
.toast-container {
  position: fixed;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10002;
  pointer-events: none;
}
.toast {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-10) var(--space-20);
  background: var(--color-text);
  color: var(--color-background);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  box-shadow: var(--shadow-lg);
  transform: translateY(-16px);
  opacity: 0;
  transition: transform var(--duration-normal) var(--ease-standard), opacity var(--duration-normal) var(--ease-standard);
  pointer-events: auto;
  white-space: nowrap;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast.hide  { transform: translateY(-16px); opacity: 0; }
.toast.toast--success { background: var(--color-success); color: var(--color-btn-primary-text); }
.toast.toast--error   { background: var(--color-error);   color: white; }

/* ============================================================
   MATRIX OVERLAY
   ============================================================ */
.matrix-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  background: #010101;
  overflow: hidden;
}
.matrix-overlay.is-active { display: flex; }
body.matrix-active { overflow: hidden; }
.matrix-overlay__canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.matrix-overlay__ui {
  position: absolute;
  top: 1.5rem; right: 1.5rem;
  display: flex; align-items: center; gap: 0.75rem;
  color: #5bff7b;
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-family: var(--font-family-mono);
  text-shadow: 0 0 8px rgba(10,255,10,0.6);
  pointer-events: none;
}
.matrix-overlay__close {
  pointer-events: auto;
  padding: 0.85rem 1.35rem 0.85rem 3.25rem;
  border-radius: 999px;
  border: 1px solid rgba(10,255,10,0.5);
  background: rgba(0,255,120,0.06);
  color: #0aff0a;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  text-transform: uppercase;
  position: relative;
  font-family: var(--font-family-mono);
}
.matrix-overlay__close:hover, .matrix-overlay__close:focus-visible {
  border-color: #0aff0a;
  background: rgba(10,255,10,0.2);
  box-shadow: 0 0 18px rgba(0,255,120,0.35);
}
.matrix-overlay__close::before,
.matrix-overlay__close::after {
  content: '';
  position: absolute;
  left: 1.25rem;
  top: 50%;
  width: 1rem; height: 2px;
  background: currentColor;
  transform: translateY(-50%) rotate(45deg);
}
.matrix-overlay__close::after { transform: translateY(-50%) rotate(-45deg); }

/* ============================================================
   SCROLL REVEAL (used by advanced-features.css)
   ============================================================ */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.55s var(--ease-out),
    transform 0.55s var(--ease-out);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}
[data-reveal="left"]  { transform: translateX(-24px); }
[data-reveal="right"] { transform: translateX(24px); }
[data-reveal="left"].is-visible,
[data-reveal="right"].is-visible { transform: translateX(0); }
[data-reveal="scale"] { transform: scale(0.95); }
[data-reveal="scale"].is-visible { transform: scale(1); }

.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.45s var(--ease-out), transform 0.45s var(--ease-out);
}
.stagger-children.is-visible > *:nth-child(1) { transition-delay: 0.05s; }
.stagger-children.is-visible > *:nth-child(2) { transition-delay: 0.10s; }
.stagger-children.is-visible > *:nth-child(3) { transition-delay: 0.15s; }
.stagger-children.is-visible > *:nth-child(4) { transition-delay: 0.20s; }
.stagger-children.is-visible > *:nth-child(5) { transition-delay: 0.25s; }
.stagger-children.is-visible > *:nth-child(6) { transition-delay: 0.30s; }
.stagger-children.is-visible > * { opacity: 1; transform: translateY(0); }

/* ============================================================
   RESPONSIVE OVERRIDES
   ============================================================ */
@media (max-width: 1024px) {
  .cert-carousel__arrow--prev { left: -8px; }
  .cert-carousel__arrow--next { right: -8px; }
}

@media (max-width: 768px) {
  .projects      { padding: 60px 0; }
  .certifications { padding: 60px 0; }
  .about, .contact { padding: 60px 0; }
  .hero { padding: 96px 0 56px; }

  .nav-container { padding: var(--space-12) var(--space-16); }
  .cert-card { padding: var(--space-20); }
  .about-card, .contact-form { padding: var(--space-24); }

  .cert-carousel__arrow--prev { left: 0; }
  .cert-carousel__arrow--next { right: 0; }
  .cert-carousel__slide-header { padding: 0 var(--space-48); }
}

@media (max-width: 640px) {
  .hero-highlights li { padding: var(--space-16); }
  .project-info { padding: var(--space-16); }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-24); }
  .project-modal-content { padding: var(--space-20); }
  .matrix-overlay__ui { top: 1rem; right: 1rem; flex-direction: column; align-items: flex-end; gap: 0.5rem; }
}

/* ============================================================
   KEYBOARD NAV (kept from original)
   ============================================================ */
section.keyboard-nav-active { position: relative; }
section.keyboard-nav-active::before {
  content: '';
  position: absolute;
  left: 0; top: 0;
  width: 3px; height: 100%;
  background: var(--color-primary);
  box-shadow: 0 0 12px var(--color-primary);
  animation: pulse-nav 1s infinite alternate;
  z-index: 50;
}
@keyframes pulse-nav {
  from { opacity: 0.5; box-shadow: 0 0 5px var(--color-primary); }
  to   { opacity: 1;   box-shadow: 0 0 14px var(--color-primary); }
}

/* ============================================================
   MISC COMPAT
   ============================================================ */
.btn-primary        { background: var(--color-primary); color: var(--color-btn-primary-text); }
.btn-primary:hover  { background: var(--color-primary-hover); color: var(--color-btn-primary-text); }
.btn-secondary      { background: var(--color-secondary); border: 1px solid var(--color-border); color: var(--color-text); }
.btn-secondary:hover{ background: var(--color-secondary-hover); color: var(--color-text); }