:root {
  --bg-base: #fafaf7;
  --bg-soft: #f0ede6;
  --bg-card: #f0ede6;
  --bg-badge: #fafaf7;
  --bg-nav: rgba(250, 250, 247, 0.92);
  --bg-footer: #0d0d0d;

  --ink: #0d0d0d;
  --muted: #6b6b6b;
  --foot-text: #888;

  --border: #e2ddd6;
  --grid: rgba(0, 0, 0, 0.04);

  --shadow: 0 20px 40px rgba(0, 0, 0, 0.09);

  /* Toggle knob */
  --knob-bg: #0d0d0d;
  --track-bg: #e2ddd6;
}

/* ── Dark mode overrides ── */
[data-theme="dark"] {
  --bg-base: #111118;
  --bg-soft: #18181f;
  --bg-card: #1e1e28;
  --bg-badge: #1e1e28;
  --bg-nav: rgba(17, 17, 24, 0.94);
  --bg-footer: #0a0a10;

  --ink: #e8e6e0;
  --muted: #8888a0;
  --foot-text: #555;

  --border: #2a2a38;
  --grid: rgba(255, 255, 255, 0.025);

  --shadow: 0 20px 40px rgba(0, 0, 0, 0.45);

  --knob-bg: #e8e6e0;
  --track-bg: #2a2a38;
}

/* ── Global smooth theme transition ── */
*,
*::before,
*::after {
  box-sizing: border-box;
  transition:
    background-color 0.35s ease,
    border-color 0.35s ease,
    color 0.25s ease,
    box-shadow 0.35s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-base);
  color: var(--ink);
  font-family: "Sora", sans-serif;
  overflow-x: hidden;
}

/* Subtle noise texture */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.025'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
}

h1,
h2,
h3,
h4 {
  font-family: "JetBrains Mono", monospace;
}
.cursor {
  animation: blink 1s step-end infinite;
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 0.55s ease,
    transform 0.55s ease;
  will-change: opacity, transform;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
/* Safety net */
@keyframes revealFallback {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.reveal {
  animation: revealFallback 0s 1.5s forwards;
}
.reveal.visible {
  animation: none;
}

/* HERO grid background */
.hero-grid {
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* ══════════════════════════════════════════════════
   NAVIGATION
══════════════════════════════════════════════════ */
nav {
  background: var(--bg-nav) !important;
  border-bottom: 1px solid var(--border) !important;
}
.nav-link {
  position: relative;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--ink);
  text-decoration: none;
  transition: color 0.2s;
}
.nav-link::after {
  content: "";
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 2px;
  background: #e63946;
  transition: width 0.25s ease;
}
.nav-link:hover::after {
  width: 100%;
}
.nav-link:hover {
  color: #e63946;
}

/* Mobile menu drawer */
#mobile-menu {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  background: var(--bg-nav);
  border-top: 1px solid var(--border);
  transition:
    max-height 0.35s ease,
    opacity 0.3s ease;
}
#mobile-menu.open {
  max-height: 400px;
  opacity: 1;
}

/* ══════════════════════════════════════════════════
   COMPONENT STYLES
══════════════════════════════════════════════════ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border: 1.5px solid var(--border);
  border-radius: 999px;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--bg-badge);
  color: var(--ink);
  cursor: default;
}
.badge:hover {
  border-color: #e63946;
  background: #e63946;
  color: #fff;
  transform: scale(1.06);
}

.card {
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-radius: 16px;
  padding: 28px;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: #e63946;
}

.social-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  border: 1.5px solid var(--border);
  background: var(--bg-badge);
  color: var(--ink);
  font-size: 1.05rem;
  text-decoration: none;
}
.social-btn:hover {
  background: #e63946;
  color: #fff;
  border-color: #e63946;
  transform: scale(1.1);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 26px;
  background: var(--ink);
  color: var(--bg-base);
  border-radius: 10px;
  font-family: "JetBrains Mono", monospace;
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  border: 2px solid transparent;
}
.btn-primary:hover {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent !important;
  color: var(--ink) !important;
  border-color: var(--border) !important;
}
.btn-outline:hover {
  border-color: var(--ink) !important;
}

.section-title::before {
  content: "// ";
  color: #e63946;
  font-family: "JetBrains Mono", monospace;
}

.timeline-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #e63946;
  flex-shrink: 0;
  margin-top: 6px;
  box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.18);
}

.course-pill {
  display: inline-block;
  padding: 3px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.72rem;
  font-family: "JetBrains Mono", monospace;
  font-weight: 600;
  color: var(--muted);
  margin: 3px 2px;
}
.course-pill:hover {
  background: var(--ink);
  color: var(--bg-base);
}

.tech-tag {
  font-size: 0.72rem;
  font-family: "JetBrains Mono", monospace;
  font-weight: 700;
  padding: 3px 10px;
  background: var(--bg-badge);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--muted);
}

#avatar-container {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--border);
  background: var(--bg-card);
  flex-shrink: 0;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

/* ══════════════════════════════════════════════════
   PROJECT SNAPSHOT
══════════════════════════════════════════════════ */
.proj-snapshot {
  position: relative;
  width: 100%;
  border-radius: 10px 10px 0 0;
  overflow: hidden;
  background: var(--bg-base);
  border-bottom: 1.5px solid var(--border);
}
/* Fake browser */
.proj-snapshot .browser-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
}
.proj-snapshot .browser-bar .dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
}
.proj-snapshot .browser-bar .url-bar {
  flex: 1;
  height: 13px;
  border-radius: 999px;
  background: var(--border);
  opacity: 0.6;
  margin: 0 4px;
}
/* SVG canvas */
.proj-snapshot .snap-canvas {
  display: block;
  width: 100%;
  height: 158px;
  transition: transform 0.45s ease;
}
/* Hover overlay */
.proj-snapshot .snap-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.52);
  backdrop-filter: blur(4px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: 10px 10px 0 0;
}
.proj-snapshot .snap-overlay i {
  font-size: 1.5rem;
  color: #fff;
}
.proj-snapshot .snap-overlay span {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.8);
  text-transform: uppercase;
}
.card:hover .snap-overlay {
  opacity: 1;
}
.card:hover .snap-canvas {
  transform: scale(1.04);
}

/* Card layout: snapshot flush on top */
.card.proj-card {
  padding: 0;
  overflow: hidden;
}
.card.proj-card .proj-body {
  padding: 20px 22px 22px;
}

/* ══════════════════════════════════════════════════
   THEME TOGGLE — minimal circular icon button
══════════════════════════════════════════════════ */
.theme-btn {
  position: relative;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  background: var(--bg-badge);
  cursor: pointer;
  outline: none;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition:
    background 0.3s ease,
    border-color 0.3s ease,
    box-shadow 0.3s ease,
    transform 0.2s ease;
}
/* Sun icon — shown in dark mode (click → go light) */
.theme-btn .t-sun {
  position: absolute;
  font-size: 15px;
  color: #f59e0b;
  transition:
    opacity 0.25s ease,
    transform 0.35s ease;
  line-height: 1;
}
/* Moon icon — shown in light mode (click → go dark) */
.theme-btn .t-moon {
  position: absolute;
  font-size: 14px;
  color: #6366f1;
  transition:
    opacity 0.25s ease,
    transform 0.35s ease;
  line-height: 1;
}
/* Light mode: show moon (invite to go dark), hide sun */
[data-theme="light"] .theme-btn .t-sun {
  opacity: 0;
  transform: rotate(-90deg) scale(0.6);
}
[data-theme="light"] .theme-btn .t-moon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}
/* Dark mode: show sun (invite to go light), hide moon */
[data-theme="dark"] .theme-btn .t-moon {
  opacity: 0;
  transform: rotate(90deg) scale(0.6);
}
[data-theme="dark"] .theme-btn .t-sun {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

/* Hover: subtle glow matching the icon */
[data-theme="light"] .theme-btn:hover {
  border-color: #6366f1;
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.12);
  transform: scale(1.08);
}
[data-theme="dark"] .theme-btn:hover {
  border-color: #f59e0b;
  box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.15);
  transform: scale(1.08);
}
.theme-btn:active {
  transform: scale(0.93) rotate(15deg);
}

/* ══════════════════════════════════════════════════
   FOOTER
══════════════════════════════════════════════════ */
footer {
  background: var(--bg-footer);
}

/* ══════════════════════════════════════════════════
   RESPONSIVE ADJUSTMENTS
══════════════════════════════════════════════════ */
@media (max-width: 768px) {
  .hero-grid {
    background-size: 30px 30px;
  }
}

/* ══════════════════════════════════════════════════
   ACCESSIBILITY & UTILITIES
══════════════════════════════════════════════════ */
/* Focus styles for accessibility */
button:focus-visible,
a:focus-visible {
  outline: 2px solid #e63946;
  outline-offset: 2px;
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-soft);
}
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--muted);
}

/* Selection color */
::selection {
  background-color: rgba(230, 57, 70, 0.3);
  color: var(--ink);
}