/* ===========================================================
   DESIGN TOKENS
   =========================================================== */
:root {
  /* Color */
  --bg-base: #06070C;
  --bg-panel: #0D0F1A;
  --bg-panel-raised: #11131F;
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);

  --text-primary: #E9EAF2;
  --text-secondary: #9097B0;
  --text-tertiary: #5C6178;

  --accent-violet: #7C5CFF;
  --accent-violet-soft: rgba(124, 92, 255, 0.14);
  --accent-teal: #3FE0C5;
  --accent-teal-soft: rgba(63, 224, 197, 0.14);

  --gradient-accent: linear-gradient(135deg, #7C5CFF 0%, #5B7CFF 50%, #3FE0C5 100%);

  /* Type */
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Layout */
  --max-width: 1180px;
  --section-pad-y: clamp(72px, 10vw, 140px);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast: 0.2s;
  --dur-base: 0.45s;
}

/* ===========================================================
   RESET
   =========================================================== */
* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, textarea { font: inherit; color: inherit; }

.mono { font-family: var(--font-mono); }

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

@media (min-width: 640px) {
  .section-inner { padding: 0 40px; }
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent-violet);
  color: #fff;
  padding: 12px 20px;
  z-index: 200;
  border-radius: 0 0 8px 0;
}
.skip-link:focus {
  left: 0;
}

/* Focus visibility — accessibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent-teal);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ===========================================================
   BACKGROUND LAYERS
   =========================================================== */
#techCanvas {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 0;
  pointer-events: none;
  width: 100%;
  opacity: 0.9;
}

.bg-glow {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(600px circle at var(--mx, 50%) var(--my, 20%), rgba(124, 92, 255, 0.10), transparent 60%);
  transition: background-position 0.1s ease-out;
}

@media (max-width: 768px) {
  .bg-glow { display: none; }
}

/* Scroll progress bar */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: var(--gradient-accent);
  z-index: 100;
  transition: width 0.1s linear;
}

/* ===========================================================
   BUTTONS
   =========================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14.5px;
  border-radius: var(--radius-sm);
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out), background var(--dur-fast), border-color var(--dur-fast), color var(--dur-fast);
  white-space: nowrap;
}

.btn svg { flex-shrink: 0; }

.btn-primary {
  background: var(--text-primary);
  color: #08090F;
  box-shadow: 0 0 0 0 rgba(124,92,255,0);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px -6px rgba(124, 92, 255, 0.45);
  background: #fff;
}
.btn-primary svg { transition: transform var(--dur-fast) var(--ease-out); }
.btn-primary:hover svg { transform: translateX(2px); }

.btn-secondary {
  background: var(--accent-violet-soft);
  color: var(--accent-violet);
  border: 1px solid rgba(124, 92, 255, 0.35);
}
.btn-secondary:hover {
  background: rgba(124, 92, 255, 0.22);
  border-color: rgba(124, 92, 255, 0.55);
  transform: translateY(-2px);
}

.btn-ghost {
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}
.btn-ghost:hover {
  color: var(--text-primary);
  border-color: var(--border-strong);
  background: rgba(255,255,255,0.03);
}

.btn-full { width: 100%; }

/* ===========================================================
   NAV
   =========================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 90;
  transition: background var(--dur-base), border-color var(--dur-base), backdrop-filter var(--dur-base);
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  background: rgba(6, 7, 12, 0.72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--border-subtle);
}

.nav {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
}

@media (min-width: 640px) {
  .nav { padding: 18px 40px; }
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.01em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--gradient-accent);
  color: #07080d;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
}

.brand-text .accent { color: var(--accent-teal); }

.nav-menu {
  display: none;
  align-items: center;
  gap: 32px;
}

.nav-menu a {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--dur-fast);
  position: relative;
  padding: 6px 0;
}

.nav-index {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-tertiary);
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--gradient-accent);
  transition: width var(--dur-base) var(--ease-out);
}

.nav-menu a:hover,
.nav-menu a.is-active {
  color: var(--text-primary);
}

.nav-menu a:hover::after,
.nav-menu a.is-active::after {
  width: 100%;
}

.nav-menu a.is-active .nav-index { color: var(--accent-teal); }

.btn-nav-cta {
  display: none;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border-subtle);
  padding: 9px 18px;
  font-size: 14px;
  border-radius: 8px;
  transition: all var(--dur-fast);
}
.btn-nav-cta:hover {
  border-color: var(--accent-violet);
  background: var(--accent-violet-soft);
  color: var(--accent-violet);
}

@media (min-width: 900px) {
  .nav-menu { display: flex; }
  .btn-nav-cta { display: inline-flex; }
}

/* Mobile nav toggle */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  z-index: 95;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text-primary);
  transition: transform var(--dur-fast) var(--ease-out), opacity var(--dur-fast);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

@media (min-width: 900px) {
  .nav-toggle { display: none; }
}

@media (max-width: 899px) {
  .nav-menu {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(78vw, 320px);
    height: 100vh;
    background: var(--bg-panel);
    border-left: 1px solid var(--border-subtle);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 28px;
    padding: 40px;
    transform: translateX(100%);
    transition: transform var(--dur-base) var(--ease-in-out);
  }
  .nav-menu.is-open { transform: translateX(0); display: flex; }
  .nav-menu a { font-size: 20px; }
}

/* ===========================================================
   ANIMATIONS
   =========================================================== */
@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes floatChip {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(63, 224, 197, 0.5); }
  50% { opacity: 0.7; box-shadow: 0 0 0 4px rgba(63, 224, 197, 0); }
}

[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-teal);
  display: inline-block;
  animation: pulse-dot 2.4s ease-in-out infinite;
}

/* ===========================================================
   HERO
   =========================================================== */
.hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 120px 24px 60px;
}

@media (min-width: 640px) {
  .hero { padding: 120px 40px 60px; }
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr;
  gap: 56px;
  align-items: center;
}

@media (min-width: 1024px) {
  .hero-inner { grid-template-columns: 1.05fr 0.95fr; gap: 40px; }
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-secondary);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-subtle);
  padding: 7px 14px;
  border-radius: 100px;
  margin-bottom: 24px;
  animation: fadeUp 0.7s var(--ease-out) both;
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 22px;
}

.hero-title .line {
  display: block;
  opacity: 0;
  animation: fadeUp 0.7s var(--ease-out) both;
}
.hero-title .line:nth-child(1) { animation-delay: 0.05s; }
.hero-title .line:nth-child(2) { animation-delay: 0.18s; }
.hero-title .line:nth-child(3) { animation-delay: 0.3s; }

.line-accent {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.caret {
  display: inline-block;
  width: 3px;
  height: 0.85em;
  background: var(--accent-teal);
  margin-left: 6px;
  vertical-align: middle;
  animation: blink 1s step-end infinite;
}

.hero-sub {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: var(--text-secondary);
  max-width: 540px;
  margin-bottom: 36px;
  opacity: 0;
  animation: fadeUp 0.7s var(--ease-out) 0.42s both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 48px;
  opacity: 0;
  animation: fadeUp 0.7s var(--ease-out) 0.54s both;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  opacity: 0;
  animation: fadeUp 0.7s var(--ease-out) 0.66s both;
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.meta-num {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
}
.meta-num::after { content: '+'; color: var(--accent-teal); }

.meta-label {
  font-size: 12.5px;
  color: var(--text-tertiary);
}

.meta-divider {
  width: 1px;
  height: 32px;
  background: var(--border-subtle);
}

/* Hero visual: code window */
.hero-visual {
  position: relative;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 0.3s both;
}

.code-window {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 30px 80px -30px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.02);
  position: relative;
}

.code-window::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(124,92,255,0.25), transparent 40%, rgba(63,224,197,0.15));
  z-index: -1;
  pointer-events: none;
}

.code-window-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 13px 16px;
  background: rgba(255,255,255,0.02);
  border-bottom: 1px solid var(--border-subtle);
}

.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-r { background: #FF5F57; }
.dot-y { background: #FEBC2E; }
.dot-g { background: #28C840; }

.code-window-title {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-tertiary);
}

.code-body {
  padding: 22px 20px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.7;
  color: #C3C8E0;
  min-height: 260px;
  white-space: pre-wrap;
  overflow-x: auto;
}

.visual-chip {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 7px;
  background: var(--bg-panel-raised);
  border: 1px solid var(--border-subtle);
  border-radius: 100px;
  padding: 9px 16px;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text-secondary);
  box-shadow: 0 12px 30px -10px rgba(0,0,0,0.5);
  animation: floatChip 5s ease-in-out infinite;
}

.chip-1 {
  top: -16px;
  right: 24px;
  color: var(--accent-teal);
  animation-delay: 0s;
}
.chip-1 svg { color: var(--accent-teal); }

.chip-2 {
  bottom: -16px;
  left: 24px;
  color: var(--accent-violet);
  animation-delay: 1.2s;
}
.chip-2 svg { color: var(--accent-violet); }

@media (max-width: 640px) {
  .visual-chip { font-size: 11px; padding: 7px 12px; }
  .chip-1 { right: 8px; top: -12px; }
  .chip-2 { left: 8px; bottom: -12px; }
}

.scroll-cue {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-tertiary);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-family: var(--font-mono);
}

.scroll-cue-dot {
  animation: scrollDot 1.8s ease-in-out infinite;
}

@keyframes scrollDot {
  0%, 100% { transform: translateY(0); opacity: 1; }
  50% { transform: translateY(5px); opacity: 0.3; }
}

@media (max-width: 768px) {
  .scroll-cue { display: none; }
}

/* ===========================================================
   SHARED SECTION HEADERS
   =========================================================== */
section { position: relative; z-index: 1; padding: var(--section-pad-y) 0; }

.section-eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-violet);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}
.section-eyebrow .mono {
  color: var(--text-tertiary);
  font-weight: 400;
  font-size: 12.5px;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  letter-spacing: -0.015em;
  margin-bottom: 16px;
}

.section-sub {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 560px;
  margin-bottom: 48px;
}

/* ===========================================================
   ABOUT
   =========================================================== */
.about { border-top: 1px solid var(--border-subtle); }

.about-grid {
  display: grid;
  gap: 48px;
  margin-top: 40px;
}

@media (min-width: 900px) {
  .about-grid { grid-template-columns: 1.1fr 0.9fr; gap: 64px; }
}

.about-lead p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.75;
  margin-bottom: 20px;
  max-width: 540px;
}

.about-pull {
  font-family: var(--font-display);
  color: var(--text-primary) !important;
  font-size: 1.25rem !important;
  font-weight: 500;
  line-height: 1.5 !important;
  border-left: 2px solid var(--accent-teal);
  padding-left: 20px;
  margin-top: 28px !important;
}

.about-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.about-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: border-color var(--dur-base), transform var(--dur-base);
}
.about-card:hover {
  border-color: rgba(124, 92, 255, 0.3);
  transform: translateY(-3px);
}

.about-card-icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--accent-violet-soft);
  color: var(--accent-violet);
  margin-bottom: 14px;
}

.about-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.about-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
}

/* ===========================================================
   STACK / SKILLS
   =========================================================== */
.stack { border-top: 1px solid var(--border-subtle); }

.stack-categories {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.stack-cat {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.stack-cat-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-violet);
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.stack-cat-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-pill {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 14px;
  background: var(--bg-panel-raised);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  transition: transform var(--dur-fast) var(--ease-out), border-color var(--dur-fast), background var(--dur-fast);
}
.skill-pill:hover {
  transform: translateY(-2px);
  border-color: var(--accent-teal);
  background: var(--accent-teal-soft);
}

.skill-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gradient-accent);
  flex-shrink: 0;
}

@media (max-width: 640px) {
  .stack-categories { grid-template-columns: 1fr; }
}

/* ===========================================================
   PROJECTS
   =========================================================== */
.projects { border-top: 1px solid var(--border-subtle); }

.project-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}

.filter-btn {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 9px 16px;
  border-radius: 100px;
  border: 1px solid var(--border-subtle);
  transition: all var(--dur-fast);
}
.filter-btn:hover { color: var(--text-primary); border-color: var(--border-strong); }
.filter-btn.is-active {
  background: var(--text-primary);
  color: var(--bg-base);
  border-color: var(--text-primary);
}

.project-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 720px) {
  .project-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1100px) {
  .project-grid { grid-template-columns: repeat(3, 1fr); }
}

.project-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
  overflow: hidden;
  transition: transform var(--dur-base) var(--ease-out), border-color var(--dur-base), box-shadow var(--dur-base);
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity var(--dur-base);
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: rgba(124, 92, 255, 0.35);
  box-shadow: 0 24px 60px -24px rgba(124, 92, 255, 0.25);
}
.project-card:hover::before { opacity: 1; }

.project-card.is-hidden { display: none; }

.project-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.project-tag {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--accent-teal);
  background: var(--accent-teal-soft);
  padding: 5px 11px;
  border-radius: 100px;
}

.project-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11.5px;
  color: var(--text-tertiary);
}

.project-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  letter-spacing: -0.01em;
}

.project-card > p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
  flex-grow: 1;
}

.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.project-stack li {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-tertiary);
  border: 1px solid var(--border-subtle);
  padding: 4px 9px;
  border-radius: 6px;
}

.project-links {
  display: flex;
  gap: 14px;
  margin-top: 4px;
}

.project-link {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-primary);
  transition: color var(--dur-fast), gap var(--dur-fast);
}
.project-link:hover { color: var(--accent-violet); }
.project-link svg { color: var(--text-secondary); transition: color var(--dur-fast); }
.project-link:hover svg { color: var(--accent-violet); }

/* ===========================================================
   EXPERIENCE / TIMELINE
   =========================================================== */
.experience { border-top: 1px solid var(--border-subtle); }

.timeline {
  position: relative;
  margin-top: 8px;
  padding-left: 28px;
  border-left: 1px solid var(--border-subtle);
}

.timeline-item {
  position: relative;
  padding-bottom: 44px;
}
.timeline-item:last-child { padding-bottom: 0; }

.timeline-marker {
  position: absolute;
  left: -33px;
  top: 4px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--bg-base);
  border: 2px solid var(--accent-violet);
}
.timeline-marker::after {
  content: '';
  position: absolute;
  inset: 2px;
  border-radius: 50%;
  background: var(--accent-violet);
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--accent-teal);
  display: block;
  margin-bottom: 6px;
}

.timeline-content h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.timeline-content > p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
  max-width: 620px;
  margin-bottom: 14px;
}

.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.timeline-tags li {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  padding: 5px 10px;
  border-radius: 6px;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 56px;
  padding-top: 48px;
  border-top: 1px solid var(--border-subtle);
}

.stat-box { text-align: left; }

.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat-label {
  font-size: 13px;
  color: var(--text-tertiary);
}

@media (max-width: 640px) {
  .stats-row { grid-template-columns: 1fr; gap: 28px; }
  .timeline { padding-left: 22px; }
  .timeline-marker { left: -27px; }
}

/* ===========================================================
   CONTACT
   =========================================================== */
.contact { border-top: 1px solid var(--border-subtle); }

.contact-grid {
  display: grid;
  gap: 40px;
  margin-top: 8px;
}

@media (min-width: 900px) {
  .contact-grid { grid-template-columns: 0.85fr 1.15fr; gap: 64px; }
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 18px;
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: border-color var(--dur-fast), transform var(--dur-fast);
}
.contact-link:hover {
  border-color: rgba(124,92,255,0.35);
  transform: translateX(4px);
}

.contact-link-icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--accent-violet-soft);
  color: var(--accent-violet);
  flex-shrink: 0;
}

.contact-link-label {
  display: block;
  font-size: 11.5px;
  color: var(--text-tertiary);
  margin-bottom: 2px;
}

.contact-link-value {
  display: block;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text-primary);
}

.contact-trust {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-tertiary);
  font-size: 13px;
  margin-top: 12px;
  padding: 0 4px;
}
.contact-trust svg { color: var(--accent-teal); flex-shrink: 0; }

.contact-form {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-row { display: flex; flex-direction: column; gap: 8px; }

.form-row label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-row input,
.form-row textarea {
  background: var(--bg-panel-raised);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  font-size: 14.5px;
  color: var(--text-primary);
  transition: border-color var(--dur-fast), background var(--dur-fast);
  resize: vertical;
}
.form-row input:focus,
.form-row textarea:focus {
  border-color: var(--accent-violet);
  background: rgba(124,92,255,0.04);
}
.form-row input::placeholder,
.form-row textarea::placeholder { color: var(--text-tertiary); }

.form-note {
  font-size: 13px;
  color: var(--accent-teal);
  min-height: 18px;
}

@media (max-width: 640px) {
  .contact-form { padding: 24px; }
}

/* ===========================================================
   FOOTER
   =========================================================== */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 36px 0;
  position: relative;
  z-index: 1;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
}
.footer-brand .accent { color: var(--accent-teal); }

.footer-copy {
  font-size: 13px;
  color: var(--text-tertiary);
}

.footer-back {
  font-size: 13px;
  color: var(--text-secondary);
  transition: color var(--dur-fast);
}
.footer-back:hover { color: var(--accent-teal); }

/* Back to top button */
.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  background: var(--bg-panel-raised);
  border: 1px solid var(--border-subtle);
  border-radius: 50%;
  color: var(--text-primary);
  z-index: 80;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--dur-base) var(--ease-out);
  box-shadow: 0 10px 30px -10px rgba(0,0,0,0.5);
}
.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  border-color: var(--accent-violet);
  color: var(--accent-violet);
}

@media (max-width: 640px) {
  .back-to-top { bottom: 18px; right: 18px; width: 40px; height: 40px; }
}

/* ===================== CERTIFICATIONS ===================== */
.cert-block {
  margin-top: 3rem;
  padding: 2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.cert-block-header {
  margin-bottom: 1.5rem;
}
.cert-total {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.cert-total .accent {
  font-size: 1.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--accent-violet);
  margin-right: 0.25rem;
}
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.75rem;
}
.cert-item {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.85rem 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--dur-base);
}
.cert-item:hover { border-color: var(--accent-violet); }
.cert-issuer {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-teal);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.cert-name {
  font-size: 0.88rem;
  color: var(--text-primary);
  font-weight: 500;
  line-height: 1.35;
}
.cert-year {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 0.1rem;
}

/* ===================== TESTIMONIALS ===================== */
.testimonials { padding: var(--section-pad) 0; }
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}
.testimonial-card {
  margin: 0;
  padding: 2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  position: relative;
  transition: border-color var(--dur-base), transform var(--dur-base);
}
.testimonial-card::before {
  content: '\201C';
  position: absolute;
  top: 1.25rem;
  left: 1.75rem;
  font-size: 3rem;
  line-height: 1;
  color: var(--accent-violet);
  opacity: 0.25;
  font-family: var(--font-display);
}
.testimonial-card:hover {
  border-color: var(--accent-violet);
  transform: translateY(-3px);
}
.testimonial-text {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin: 0 0 1.5rem;
  padding-top: 0.5rem;
}
.testimonial-footer {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.testimonial-name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-primary);
}
.testimonial-role {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-teal);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

@media (max-width: 640px) {
  .cert-grid { grid-template-columns: 1fr; }
  .testimonial-grid { grid-template-columns: 1fr; }
}

/* ===================== CERT STAT (simple) ===================== */
.cert-stat {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 2.5rem;
  padding: 1.5rem 2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: fit-content;
}
.cert-stat-num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent-violet);
  line-height: 1;
}
.cert-stat-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
@media (max-width: 640px) {
  .cert-stat { width: 100%; }
}

/* ===================== CANVAS PARALLAX ===================== */
#techCanvas {
  will-change: transform;
}

/* ===================== SECTION CANVAS (Stack bg) ===================== */
.section-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.5;
}
.stack {
  position: relative;
  overflow: hidden;
}
.stack .section-inner {
  position: relative;
  z-index: 1;
}

/* ===================== PROJECT TILES ===================== */
.project-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}
@media (min-width: 720px) {
  .project-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1100px) {
  .project-grid { grid-template-columns: repeat(3, 1fr); }
}

/* When ANY tile is hovered, dim all siblings */
.project-grid:has(.project-tile:hover) .project-tile:not(:hover) {
  opacity: 0.4;
  filter: blur(1px);
}

.project-tile {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition: opacity 0.4s ease, filter 0.4s ease;
  aspect-ratio: 4/3;
  border: 1px solid rgba(255,255,255,0.06);
}

/* Gradient background layer */
.project-tile-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--tile-from), var(--tile-to));
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  z-index: 0;
}

/* Zoom the bg on hover */
.project-tile:hover .project-tile-bg {
  transform: scale(1.12);
}

/* Shimmer glow overlay on hover */
.project-tile::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%), rgba(124,92,255,0.18) 0%, transparent 65%);
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 1;
  pointer-events: none;
}
.project-tile:hover::after { opacity: 1; }

/* Glowing border on hover */
.project-tile::before {
  content: '';
  position: absolute;
  inset: 0;
  border: 1.5px solid rgba(124,92,255,0);
  transition: border-color 0.4s ease, box-shadow 0.4s ease;
  z-index: 3;
  pointer-events: none;
}
.project-tile:hover::before {
  border-color: rgba(124,92,255,0.6);
  box-shadow: inset 0 0 30px rgba(124,92,255,0.08);
}

/* Content inside tile */
.project-tile-inner {
  position: relative;
  z-index: 2;
  padding: 28px;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: linear-gradient(180deg, rgba(0,0,0,0.15) 0%, rgba(0,0,0,0.55) 100%);
  transition: background 0.4s ease;
}
.project-tile:hover .project-tile-inner {
  background: linear-gradient(180deg, rgba(0,0,0,0.05) 0%, rgba(0,0,0,0.45) 100%);
}

.project-tile-inner h3 {
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 700;
  color: #fff;
  margin: 0;
  transition: color 0.3s;
}
.project-tile:hover .project-tile-inner h3 {
  color: #e8d8ff;
}

.project-tile-inner p {
  font-size: 0.83rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.55;
  flex: 1;
  margin: 0;
}

/* Arrow hint — appears on hover */
.project-tile-zoom-hint {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 1.3rem;
  color: rgba(124,92,255,0.9);
  opacity: 0;
  transform: translate(-4px, 4px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 4;
  line-height: 1;
}
.project-tile:hover .project-tile-zoom-hint {
  opacity: 1;
  transform: translate(0, 0);
}

/* Stack pills and links inside tiles */
.project-tile .project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  padding: 0;
  margin: 0;
}
.project-tile .project-stack li {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.75);
  letter-spacing: 0.04em;
}
.project-tile .project-links {
  margin-top: auto;
}
.project-tile .project-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: rgba(63,224,197,0.9);
  text-decoration: none;
  transition: color 0.2s;
}
.project-tile .project-link:hover { color: #fff; }
.project-tile .project-card-top {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.project-tile .project-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 3px 8px;
  border-radius: 100px;
  background: rgba(124,92,255,0.2);
  border: 1px solid rgba(124,92,255,0.35);
  color: #c4b0ff;
}
.project-tile .project-status {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  display: flex;
  align-items: center;
  gap: 5px;
  color: rgba(63,224,197,0.85);
}

@media (max-width: 640px) {
  .project-tile { aspect-ratio: auto; min-height: 220px; }
  .project-tile-inner { padding: 20px; }
}

/* ===================== PARALLAX ORBS ===================== */
.parallax-orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  will-change: transform;
  z-index: 0;
}

.orb-1 {
  width: 900px; height: 900px;
  top: -150px; left: -280px;
  background: radial-gradient(circle at 40% 40%, rgba(124,92,255,0.30) 0%, rgba(124,92,255,0.06) 50%, transparent 70%);
  filter: blur(55px);
}
.orb-2 {
  width: 700px; height: 700px;
  top: 200px; right: -220px;
  background: radial-gradient(circle at 60% 40%, rgba(63,224,197,0.24) 0%, rgba(63,224,197,0.05) 50%, transparent 70%);
  filter: blur(65px);
}
.orb-3 {
  width: 950px; height: 950px;
  top: 1100px; left: -150px;
  background: radial-gradient(circle at 35% 50%, rgba(124,92,255,0.22) 0%, rgba(63,224,197,0.06) 50%, transparent 70%);
  filter: blur(70px);
}
.orb-4 {
  width: 800px; height: 800px;
  top: 1800px; right: -180px;
  background: radial-gradient(circle at 65% 45%, rgba(63,224,197,0.22) 0%, rgba(124,92,255,0.05) 50%, transparent 70%);
  filter: blur(60px);
}
.orb-5 {
  width: 1000px; height: 1000px;
  top: 2600px; left: 50%; margin-left: -500px;
  background: radial-gradient(circle at 50% 50%, rgba(124,92,255,0.20) 0%, rgba(63,224,197,0.06) 45%, transparent 70%);
  filter: blur(80px);
}
.orb-6 {
  width: 750px; height: 750px;
  top: 3400px; left: -200px;
  background: radial-gradient(circle at 35% 50%, rgba(63,224,197,0.20) 0%, transparent 70%);
  filter: blur(65px);
}
.orb-7 {
  width: 850px; height: 850px;
  top: 4200px; right: -250px;
  background: radial-gradient(circle at 65% 45%, rgba(124,92,255,0.25) 0%, transparent 70%);
  filter: blur(60px);
}

/* ===================== PARALLAX LINES ===================== */
.parallax-line {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1px;
  pointer-events: none;
  will-change: transform;
  z-index: 0;
  overflow: hidden;
}
.parallax-line::after {
  content: '';
  display: block;
  width: 40%;
  height: 1px;
}
.line-1 {
  top: 800px;
}
.line-1::after {
  background: linear-gradient(90deg, transparent, rgba(124,92,255,0.35), transparent);
  margin-left: 10%;
}
.line-2 {
  top: 1600px;
}
.line-2::after {
  background: linear-gradient(90deg, transparent, rgba(63,224,197,0.30), transparent);
  margin-left: 50%;
}
.line-3 {
  top: 2700px;
}
.line-3::after {
  background: linear-gradient(90deg, transparent, rgba(124,92,255,0.30), transparent);
  margin-left: 20%;
}
.line-4 {
  top: 3800px;
}
.line-4::after {
  background: linear-gradient(90deg, transparent, rgba(63,224,197,0.25), transparent);
  margin-left: 60%;
}

body { position: relative; overflow-x: hidden; }

/* Parallax background container — fixed so orbs never extend the document */
.parallax-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}