/* ======================================================
   ALLWYN D'SOUZA PORTFOLIO — style.css
   Palette: Deep navy/slate with amber/gold accent
   Blockchain-meets-banking aesthetic: precise, dark, authoritative
   ====================================================== */

/* ---- DESIGN TOKENS ---- */
:root {
  /* Type scale */
  --text-xs:   clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl:  clamp(2.5rem, 1rem + 4vw, 5rem);
  --text-hero: clamp(3rem, 0.5rem + 7vw, 8rem);

  /* Spacing */
  --space-1: 0.25rem; --space-2: 0.5rem;  --space-3: 0.75rem;
  --space-4: 1rem;    --space-5: 1.25rem; --space-6: 1.5rem;
  --space-8: 2rem;    --space-10: 2.5rem; --space-12: 3rem;
  --space-16: 4rem;   --space-20: 5rem;   --space-24: 6rem;
  --space-32: 8rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---- LIGHT MODE ---- */
:root, [data-theme="light"] {
  --color-bg:              #f4f3f0;
  --color-surface:         #fafaf8;
  --color-surface-2:       #ffffff;
  --color-surface-offset:  #eeece8;
  --color-border:          #d8d5ce;
  --color-divider:         #e2dfd9;

  --color-text:            #1a1916;
  --color-text-muted:      #6b6960;
  --color-text-faint:      #b0aea8;
  --color-text-inverse:    #f9f8f5;

  /* Primary: deep slate blue */
  --color-primary:         #1e3a5f;
  --color-primary-hover:   #152c4a;
  --color-primary-active:  #0d1e33;
  --color-primary-highlight: #c8d5e8;

  /* Accent: amber/gold — blockchain warmth */
  --color-accent-warm:     #c97f1a;
  --color-accent-hover:    #a86514;
  --color-accent-highlight:#f2e0c4;

  /* Success, error */
  --color-success:         #2d7a3a;
  --color-error:           #c0392b;

  --shadow-sm: 0 1px 2px rgba(20,30,50,0.06);
  --shadow-md: 0 4px 16px rgba(20,30,50,0.10);
  --shadow-lg: 0 12px 40px rgba(20,30,50,0.14);

  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body:    'DM Sans', 'Helvetica Neue', sans-serif;
}

/* ---- DARK MODE ---- */
[data-theme="dark"] {
  --color-bg:              #0d1117;
  --color-surface:         #131920;
  --color-surface-2:       #1a2232;
  --color-surface-offset:  #111822;
  --color-border:          #253040;
  --color-divider:         #1c2836;

  --color-text:            #dde4ef;
  --color-text-muted:      #7a8fa8;
  --color-text-faint:      #3e5268;
  --color-text-inverse:    #0d1117;

  --color-primary:         #4a90c4;
  --color-primary-hover:   #6aaee0;
  --color-primary-active:  #90c4f0;
  --color-primary-highlight:#1a2e42;

  --color-accent-warm:     #f0a832;
  --color-accent-hover:    #ffc55a;
  --color-accent-highlight:#2e2010;

  --color-success:         #4aad5a;
  --color-error:           #e05a4a;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.25);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.35);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.50);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #0d1117; --color-surface: #131920; --color-surface-2: #1a2232;
    --color-surface-offset: #111822; --color-border: #253040; --color-divider: #1c2836;
    --color-text: #dde4ef; --color-text-muted: #7a8fa8; --color-text-faint: #3e5268;
    --color-text-inverse: #0d1117;
    --color-primary: #4a90c4; --color-primary-hover: #6aaee0; --color-primary-active: #90c4f0;
    --color-primary-highlight: #1a2e42;
    --color-accent-warm: #f0a832; --color-accent-hover: #ffc55a; --color-accent-highlight: #2e2010;
    --color-success: #4aad5a; --color-error: #e05a4a;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.25);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.35);
    --shadow-lg: 0 12px 48px rgba(0,0,0,0.50);
  }
}

/* ---- BASE ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-20);
}
body {
  min-height: 100dvh;
  font-family: var(--font-body, sans-serif);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.65;
}
img, video, svg { display: block; max-width: 100%; height: auto; }
h1,h2,h3,h4,h5,h6 { text-wrap: balance; line-height: 1.15; font-family: var(--font-display); }
p, li { text-wrap: pretty; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition-interactive); }
a:hover { color: var(--color-primary-hover); }
button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }
::selection { background: color-mix(in oklab, var(--color-accent-warm), transparent 75%); }
:focus-visible { outline: 2px solid var(--color-accent-warm); outline-offset: 3px; border-radius: var(--radius-sm); }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; } }

/* ---- LAYOUT ---- */
.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-4), 5vw, var(--space-12));
}
.section { padding-block: clamp(var(--space-16), 8vw, var(--space-32)); }

/* ---- BUTTONS ---- */
.btn-primary {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: var(--color-accent-warm);
  color: #0d1117;
  border-radius: var(--radius-md);
  font-size: var(--text-sm); font-weight: 600;
  transition: background var(--transition-interactive), transform var(--transition-interactive), box-shadow var(--transition-interactive);
  text-decoration: none;
}
.btn-primary:hover { background: var(--color-accent-hover); color: #0d1117; transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-ghost {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border: 1.5px solid var(--color-border);
  color: var(--color-text);
  border-radius: var(--radius-md);
  font-size: var(--text-sm); font-weight: 500;
  transition: border-color var(--transition-interactive), color var(--transition-interactive), transform var(--transition-interactive);
  text-decoration: none;
}
.btn-ghost:hover { border-color: var(--color-primary); color: var(--color-primary); transform: translateY(-1px); }
.btn-lg { padding: var(--space-4) var(--space-8); font-size: var(--text-base); }

/* ---- BADGES ---- */
.badge {
  display: inline-flex; align-items: center;
  padding: var(--space-1) var(--space-3);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-xs); font-weight: 500;
  color: var(--color-text-muted);
}
.badge-accent { background: color-mix(in oklab, var(--color-accent-warm), transparent 88%); border-color: color-mix(in oklab, var(--color-accent-warm), transparent 60%); color: var(--color-accent-warm); }

/* ---- SECTION LABEL ---- */
.section-label {
  display: inline-flex;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-warm);
  margin-bottom: var(--space-4);
}
.section-sub { color: var(--color-text-muted); font-size: var(--text-base); max-width: 60ch; margin-top: var(--space-3); margin-bottom: var(--space-12); }

/* ======================================================
   HEADER
   ====================================================== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in oklab, var(--color-bg), transparent 8%);
  backdrop-filter: blur(16px) saturate(1.5);
  border-bottom: 1px solid var(--color-divider);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow var(--transition-interactive);
}
.site-header.scrolled { box-shadow: var(--shadow-md); }
.header-inner {
  display: flex; align-items: center; gap: var(--space-8);
  max-width: var(--content-wide);
  margin-inline: auto;
  padding: var(--space-4) clamp(var(--space-4), 5vw, var(--space-12));
}
.logo { display: flex; align-items: center; gap: var(--space-3); text-decoration: none; flex-shrink: 0; }
.logo-text { font-size: var(--text-sm); font-weight: 600; color: var(--color-text); letter-spacing: -0.01em; }
.nav-links { display: flex; align-items: center; gap: var(--space-6); margin-left: auto; }
.nav-links a { font-size: var(--text-sm); font-weight: 500; color: var(--color-text-muted); transition: color var(--transition-interactive); }
.nav-links a:hover { color: var(--color-text); }
.header-actions { display: flex; align-items: center; gap: var(--space-4); }
.theme-toggle {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: var(--radius-md);
  color: var(--color-text-muted);
  transition: color var(--transition-interactive), background var(--transition-interactive);
}
.theme-toggle:hover { color: var(--color-text); background: var(--color-surface-offset); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: var(--space-2); }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--color-text); border-radius: 2px; transition: transform var(--transition-interactive); }

/* ======================================================
   HERO
   ====================================================== */
.hero {
  position: relative; overflow: hidden;
  min-height: 100svh;
  display: flex; align-items: center;
  padding-block: clamp(var(--space-20), 10vw, var(--space-32));
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background: radial-gradient(ellipse 80% 60% at 60% 40%, color-mix(in oklab, var(--color-primary), transparent 88%) 0%, transparent 70%),
              radial-gradient(ellipse 50% 40% at 20% 80%, color-mix(in oklab, var(--color-accent-warm), transparent 92%) 0%, transparent 60%);
}
.grid-lines {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--color-divider) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-divider) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.25;
}
/* Animated blockchain nodes */
.chain-nodes { position: absolute; inset: 0; pointer-events: none; }
.node {
  position: absolute; border-radius: 50%;
  background: var(--color-accent-warm);
  animation: pulse-node 4s ease-in-out infinite;
}
.n1 { width: 12px; height: 12px; top: 20%; left: 20%; opacity: 0.7; animation-delay: 0s; }
.n2 { width: 8px;  height: 8px;  top: 30%; left: 50%; opacity: 0.5; animation-delay: 0.8s; }
.n3 { width: 14px; height: 14px; top: 25%; left: 80%; opacity: 0.6; animation-delay: 1.6s; }
.n4 { width: 8px;  height: 8px;  top: 80%; left: 33%; opacity: 0.4; animation-delay: 2.4s; }
.n5 { width: 10px; height: 10px; top: 73%; left: 70%; opacity: 0.5; animation-delay: 0.4s; }
@keyframes pulse-node { 0%,100% { transform: scale(1); opacity: 0.5; } 50% { transform: scale(1.6); opacity: 0.9; } }
.chain-links { position: absolute; inset: 0; width: 100%; height: 100%; }
.chain-line { stroke: var(--color-accent-warm); stroke-width: 1; opacity: 0.15; stroke-dasharray: 6 6; animation: dash-move 8s linear infinite; }
@keyframes dash-move { to { stroke-dashoffset: -48; } }

.hero-content { position: relative; z-index: 1; }
.hero-eyebrow { display: flex; gap: var(--space-3); flex-wrap: wrap; margin-bottom: var(--space-8); }
.hero-heading {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  max-width: 14ch;
  margin-bottom: var(--space-6);
}
.hero-heading em {
  font-style: italic;
  color: var(--color-accent-warm);
}
.hero-sub {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 52ch;
  line-height: 1.7;
  margin-bottom: var(--space-10);
}
.hero-actions { display: flex; gap: var(--space-4); flex-wrap: wrap; margin-bottom: var(--space-16); }
.hero-stats {
  display: flex; align-items: center; gap: var(--space-8);
  flex-wrap: wrap;
  padding: var(--space-6) 0;
  border-top: 1px solid var(--color-divider);
}
.stat { display: flex; flex-direction: column; gap: var(--space-1); }
.stat-num { font-family: var(--font-display); font-size: var(--text-xl); font-weight: 400; color: var(--color-accent-warm); line-height: 1; }
.stat-label { font-size: var(--text-xs); color: var(--color-text-muted); max-width: 12ch; line-height: 1.4; }
.stat-divider { width: 1px; height: 40px; background: var(--color-divider); }

/* ======================================================
   ABOUT
   ====================================================== */
.about-section { background: var(--color-surface); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(var(--space-10), 5vw, var(--space-20)); align-items: start; margin-top: var(--space-8); }
.about-headshot-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  margin-bottom: var(--space-8);
}
.about-headshot {
  width: 160px;
  height: 220px;
  border-radius: var(--radius-lg);
  object-fit: cover;
  object-position: center top;
  border: 3px solid var(--color-accent-warm);
  box-shadow: 0 0 0 5px color-mix(in oklab, var(--color-accent-warm), transparent 85%), var(--shadow-lg);
  flex-shrink: 0;
}
.about-social { margin-top: var(--space-6); }
.about-text h2 { font-size: var(--text-2xl); margin-bottom: var(--space-6); }
.about-text p { color: var(--color-text-muted); margin-bottom: var(--space-5); }
.about-cards { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.about-card {
  padding: var(--space-6);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-interactive), transform var(--transition-interactive), box-shadow var(--transition-interactive);
}
.about-card:hover { border-color: var(--color-primary); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.about-card-icon { margin-bottom: var(--space-4); }
.about-card h3 { font-family: var(--font-body); font-size: var(--text-sm); font-weight: 600; margin-bottom: var(--space-2); }
.about-card p { font-size: var(--text-xs); color: var(--color-text-muted); line-height: 1.6; }

/* ======================================================
   ALIGNMENT TABLE
   ====================================================== */
.alignment-section { background: var(--color-bg); }
.alignment-section h2 { font-size: var(--text-2xl); margin-bottom: var(--space-3); }
.alignment-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.alignment-table { width: 100%; border-collapse: collapse; font-size: var(--text-sm); }
.alignment-table thead { background: var(--color-surface-2); }
.alignment-table th {
  padding: var(--space-4) var(--space-6);
  text-align: left;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
}
.alignment-table th:first-child { color: var(--color-accent-warm); }
.alignment-table td {
  padding: var(--space-5) var(--space-6);
  vertical-align: top;
  border-bottom: 1px solid var(--color-divider);
  line-height: 1.6;
}
.alignment-table tr:last-child td { border-bottom: none; }
.alignment-table tr:nth-child(even) td { background: color-mix(in oklab, var(--color-surface), transparent 50%); }
.alignment-table tr:hover td { background: color-mix(in oklab, var(--color-primary-highlight), transparent 50%); }
.alignment-table td:first-child { color: var(--color-text); font-weight: 500; max-width: 220px; }
.alignment-table td:nth-child(2) { color: var(--color-text-muted); max-width: 320px; }
.alignment-table td:last-child { min-width: 140px; }
.alignment-table a { color: var(--color-primary); font-size: var(--text-xs); font-weight: 500; }
.alignment-table a:hover { color: var(--color-accent-warm); }

/* ======================================================
   PROJECTS
   ====================================================== */
.projects-section { background: var(--color-surface); }
.projects-section h2 { font-size: var(--text-2xl); }
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-6);
}
.project-card {
  padding: var(--space-8);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  display: flex; flex-direction: column; gap: var(--space-4);
  transition: border-color var(--transition-interactive), transform var(--transition-interactive), box-shadow var(--transition-interactive);
}
.project-card:hover { border-color: var(--color-primary); transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.project-featured { grid-column: span 2; border-color: var(--color-accent-warm); }
.project-featured:hover { border-color: var(--color-accent-hover); }
.project-meta { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); flex-wrap: wrap; }
.project-tag { font-size: var(--text-xs); color: var(--color-text-muted); font-weight: 500; }
.project-status { font-size: var(--text-xs); font-weight: 600; color: var(--color-text-faint); }
.project-status.live { color: #4aad5a; }
.project-card h3 { font-family: var(--font-display); font-size: var(--text-lg); font-weight: 400; }
.project-card p { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.65; flex: 1; }
.project-tech { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.project-tech span {
  padding: var(--space-1) var(--space-3);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-xs); font-weight: 500;
  color: var(--color-text-muted);
}
.project-links { display: flex; gap: var(--space-3); flex-wrap: wrap; margin-top: auto; }

/* ======================================================
   TOKEN LIFECYCLE
   ====================================================== */
.lifecycle-section {
  background: linear-gradient(135deg, var(--color-bg) 0%, color-mix(in oklab, var(--color-primary), var(--color-bg) 96%) 100%);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.lifecycle-section h2 { font-size: var(--text-2xl); }
.lifecycle-flow {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  margin-top: var(--space-12);
  flex-wrap: wrap;
}
.lc-step {
  flex: 1; min-width: 180px;
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  display: flex; flex-direction: column; gap: var(--space-3);
  transition: border-color var(--transition-interactive), transform var(--transition-interactive);
}
.lc-step:hover { border-color: var(--color-accent-warm); transform: translateY(-2px); }
.lc-icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  background: color-mix(in oklab, var(--color-primary-highlight), transparent 30%);
}
.lc-issue .lc-icon { background: color-mix(in oklab, #4aad5a, transparent 85%); }
.lc-issue svg { stroke: #4aad5a; }
.lc-transfer .lc-icon { background: color-mix(in oklab, var(--color-primary), transparent 85%); }
.lc-transfer svg { stroke: var(--color-primary); }
.lc-redeem .lc-icon { background: color-mix(in oklab, var(--color-accent-warm), transparent 85%); }
.lc-redeem svg { stroke: var(--color-accent-warm); }
.lc-burn .lc-icon { background: color-mix(in oklab, var(--color-error), transparent 85%); }
.lc-burn svg { stroke: var(--color-error); }
.lc-content h4 { font-family: var(--font-body); font-size: var(--text-sm); font-weight: 700; color: var(--color-text); }
.lc-content p { font-size: var(--text-xs); color: var(--color-text-muted); line-height: 1.6; }
.lc-control {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-accent-warm);
  padding: var(--space-2) var(--space-3);
  background: color-mix(in oklab, var(--color-accent-warm), transparent 92%);
  border-radius: var(--radius-sm);
  margin-top: var(--space-2);
  line-height: 1.5;
}
.lc-arrow {
  align-self: center;
  font-size: var(--text-xl);
  color: var(--color-text-faint);
  flex-shrink: 0;
  margin-top: -var(--space-4);
}

/* ======================================================
   SKILLS MATRIX
   ====================================================== */
.skills-section { background: var(--color-bg); }
.skills-section h2 { font-size: var(--text-2xl); margin-bottom: var(--space-12); }
.skills-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: var(--space-8); }
.skill-group {}
.skill-group h3 { font-family: var(--font-body); font-size: var(--text-sm); font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; color: var(--color-accent-warm); margin-bottom: var(--space-6); padding-bottom: var(--space-3); border-bottom: 1px solid var(--color-border); }
.skill-list { list-style: none; display: flex; flex-direction: column; gap: var(--space-4); }
.skill-list li { display: flex; flex-direction: column; gap: var(--space-2); }
.skill-name { font-size: var(--text-sm); color: var(--color-text); }
.skill-bar { height: 4px; background: var(--color-surface-2); border-radius: var(--radius-full); overflow: hidden; }
.skill-fill { height: 100%; background: linear-gradient(90deg, var(--color-primary), var(--color-accent-warm)); border-radius: var(--radius-full); width: 0; transition: width 1s cubic-bezier(0.16, 1, 0.3, 1); }

/* ======================================================
   TIMELINE
   ====================================================== */
.timeline-section { background: var(--color-surface); }
.timeline-section h2 { font-size: var(--text-2xl); margin-bottom: var(--space-12); }
.timeline { position: relative; padding-left: var(--space-8); }
.timeline::before {
  content: '';
  position: absolute; left: 0; top: 8px; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-accent-warm), var(--color-border));
}
.timeline-item { position: relative; padding-bottom: var(--space-12); }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-dot {
  position: absolute; left: calc(-1 * var(--space-8) - 5px);
  top: 6px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 2.5px solid var(--color-border);
}
.timeline-dot-accent { background: var(--color-accent-warm); border-color: var(--color-accent-warm); box-shadow: 0 0 0 4px color-mix(in oklab, var(--color-accent-warm), transparent 80%); }
.timeline-date { font-size: var(--text-xs); font-weight: 600; color: var(--color-accent-warm); letter-spacing: 0.06em; margin-bottom: var(--space-2); }
.timeline-content h3 { font-family: var(--font-body); font-size: var(--text-base); font-weight: 600; margin-bottom: var(--space-1); }
.timeline-org { font-size: var(--text-sm); color: var(--color-primary); font-weight: 500; display: block; margin-bottom: var(--space-3); }
.timeline-content p { font-size: var(--text-sm); color: var(--color-text-muted); max-width: 65ch; }
.timeline-links { margin-top: var(--space-3); }
.timeline-links a { font-size: var(--text-xs); color: var(--color-primary); font-weight: 600; }

/* ======================================================
   CONTACT
   ====================================================== */
.contact-section {
  background: linear-gradient(135deg, color-mix(in oklab, var(--color-primary), var(--color-bg) 94%) 0%, var(--color-bg) 100%);
  border-top: 1px solid var(--color-border);
}
.contact-inner { max-width: 680px; }
.contact-inner h2 { font-size: var(--text-2xl); margin-bottom: var(--space-4); }
.contact-inner p { color: var(--color-text-muted); max-width: 52ch; margin-bottom: var(--space-10); }
.contact-links { display: flex; gap: var(--space-4); flex-wrap: wrap; margin-bottom: var(--space-8); }
.contact-detail { display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap; font-size: var(--text-sm); color: var(--color-text-muted); }
.separator { color: var(--color-text-faint); }

/* ======================================================
   FOOTER
   ====================================================== */
.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-8);
}
.footer-inner {
  display: flex; align-items: center; gap: var(--space-8);
  flex-wrap: wrap; justify-content: space-between;
}
.footer-left { display: flex; flex-direction: column; gap: var(--space-1); }
.footer-name { font-weight: 600; font-size: var(--text-sm); }
.footer-title { font-size: var(--text-xs); color: var(--color-text-muted); }
.footer-links { display: flex; gap: var(--space-6); flex-wrap: wrap; }
.footer-links a { font-size: var(--text-xs); color: var(--color-text-muted); transition: color var(--transition-interactive); }
.footer-links a:hover { color: var(--color-text); }
.footer-copy { font-size: var(--text-xs); color: var(--color-text-faint); }

/* ======================================================
   RESPONSIVE
   ====================================================== */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  .project-featured { grid-column: span 1; }
  .lifecycle-flow { flex-direction: column; }
  .lc-arrow { align-self: flex-start; transform: rotate(90deg); margin: 0 auto; }
  .nav-links, .header-actions .btn-primary { display: none; }
  .nav-toggle { display: flex; margin-left: auto; }
  .about-cards { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .hero-heading { font-size: var(--text-2xl); }
  .stat-num { font-size: var(--text-lg); }
  .hero-stats { gap: var(--space-5); }
  .stat-divider { display: none; }
  .alignment-table { font-size: var(--text-xs); }
  .alignment-table th, .alignment-table td { padding: var(--space-3) var(--space-4); }
  .timeline { padding-left: var(--space-6); }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: var(--space-4); }
}

/* ---- Mobile nav ---- */
.nav-open .nav-links {
  display: flex; flex-direction: column; align-items: flex-start;
  position: fixed; inset: 0; top: 65px;
  background: var(--color-bg);
  padding: var(--space-8) clamp(var(--space-4), 5vw, var(--space-12));
  gap: var(--space-6); z-index: 99;
  border-top: 1px solid var(--color-border);
}
.nav-open .nav-links a { font-size: var(--text-lg); }

/* ---- Header hide on scroll ---- */
.site-header.header-hidden { transform: translateY(-100%); }

/* ---- Active nav link ---- */
.nav-links a.active { color: var(--color-accent-warm) !important; }