/* Light mode (default) */
:root {
  --bg:            #ffffff;
  --bg-alt:        #f5f5f7;
  --bg-card:       #ffffff;
  --text-0:        #111111;
  --text-1:        #555555;
  --text-2:        #999999;
  --accent:        #5b5bd6;
  --accent-dim:    rgba(91, 91, 214, 0.07);
  --accent-border: rgba(91, 91, 214, 0.18);
  --border:        #e4e4e7;
  --border-hover:  rgba(91, 91, 214, 0.3);
  --shadow:        0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 16px rgba(0, 0, 0, 0.04);
  --radius:        12px;
  --radius-sm:     6px;
  --nav-h:         64px;
  --transition:    0.2s cubic-bezier(0.4, 0, 0.2, 1);
}


/* System dark (no data-theme set + OS dark) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --bg:            #0c0c0c;
    --bg-alt:        #111111;
    --bg-card:       #161616;
    --text-0:        #f0f0f0;
    --text-1:        #888888;
    --text-2:        #555555;
    --accent:        #818cf8;
    --accent-dim:    rgba(129, 140, 248, 0.1);
    --accent-border: rgba(129, 140, 248, 0.25);
    --border:        #222222;
    --border-hover:  rgba(129, 140, 248, 0.4);
    --shadow:        0 1px 3px rgba(0, 0, 0, 0.5);
  }
}


/* Dark */
:root[data-theme="dark"] {
  --bg:            #0c0c0c;
  --bg-alt:        #111111;
  --bg-card:       #161616;
  --text-0:        #f0f0f0;
  --text-1:        #888888;
  --text-2:        #555555;
  --accent:        #818cf8;
  --accent-dim:    rgba(129, 140, 248, 0.1);
  --accent-border: rgba(129, 140, 248, 0.25);
  --border:        #222222;
  --border-hover:  rgba(129, 140, 248, 0.4);
  --shadow:        0 1px 3px rgba(0, 0, 0, 0.5);
}


/* One Dark Pro */
:root[data-theme="one-dark"] {
  --bg:            #282c34;
  --bg-alt:        #21252b;
  --bg-card:       #2c313a;
  --text-0:        #abb2bf;
  --text-1:        #636d83;
  --text-2:        #4b5263;
  --accent:        #61afef;
  --accent-dim:    rgba(97, 175, 239, 0.1);
  --accent-border: rgba(97, 175, 239, 0.25);
  --border:        #3e4451;
  --border-hover:  rgba(97, 175, 239, 0.4);
  --shadow:        0 1px 3px rgba(0, 0, 0, 0.5);
}


/* VS Code Dark+ */
:root[data-theme="vscode"] {
  --bg:            #1e1e1e;
  --bg-alt:        #252526;
  --bg-card:       #2d2d2d;
  --text-0:        #d4d4d4;
  --text-1:        #9d9d9d;
  --text-2:        #6a6a6a;
  --accent:        #569cd6;
  --accent-dim:    rgba(86, 156, 214, 0.1);
  --accent-border: rgba(86, 156, 214, 0.25);
  --border:        #3c3c3c;
  --border-hover:  rgba(86, 156, 214, 0.4);
  --shadow:        0 1px 3px rgba(0, 0, 0, 0.5);
}


/* JetBrains Darcula */
:root[data-theme="darcula"] {
  --bg:            #2b2b2b;
  --bg-alt:        #313335;
  --bg-card:       #3c3f41;
  --text-0:        #a9b7c6;
  --text-1:        #808080;
  --text-2:        #606060;
  --accent:        #ffc66d;
  --accent-dim:    rgba(255, 198, 109, 0.1);
  --accent-border: rgba(255, 198, 109, 0.25);
  --border:        #4d4d4d;
  --border-hover:  rgba(255, 198, 109, 0.4);
  --shadow:        0 1px 3px rgba(0, 0, 0, 0.5);
}


/* Tokyo Night */
:root[data-theme="tokyo"] {
  --bg:            #1a1b26;
  --bg-alt:        #16161e;
  --bg-card:       #1f2335;
  --text-0:        #c0caf5;
  --text-1:        #565f89;
  --text-2:        #3b4261;
  --accent:        #7aa2f7;
  --accent-dim:    rgba(122, 162, 247, 0.1);
  --accent-border: rgba(122, 162, 247, 0.25);
  --border:        #292e42;
  --border-hover:  rgba(122, 162, 247, 0.4);
  --shadow:        0 1px 3px rgba(0, 0, 0, 0.5);
}


/* Dracula */
:root[data-theme="dracula"] {
  --bg:            #282a36;
  --bg-alt:        #21222c;
  --bg-card:       #343746;
  --text-0:        #f8f8f2;
  --text-1:        #6272a4;
  --text-2:        #44475a;
  --accent:        #bd93f9;
  --accent-dim:    rgba(189, 147, 249, 0.1);
  --accent-border: rgba(189, 147, 249, 0.25);
  --border:        #44475a;
  --border-hover:  rgba(189, 147, 249, 0.4);
  --shadow:        0 1px 3px rgba(0, 0, 0, 0.5);
}


/* Monokai */
:root[data-theme="monokai"] {
  --bg:            #272822;
  --bg-alt:        #1e1f1c;
  --bg-card:       #3e3d32;
  --text-0:        #f8f8f2;
  --text-1:        #75715e;
  --text-2:        #49483e;
  --accent:        #a6e22e;
  --accent-dim:    rgba(166, 226, 46, 0.1);
  --accent-border: rgba(166, 226, 46, 0.25);
  --border:        #49483e;
  --border-hover:  rgba(166, 226, 46, 0.4);
  --shadow:        0 1px 3px rgba(0, 0, 0, 0.5);
}


/* Nord */
:root[data-theme="nord"] {
  --bg:            #2e3440;
  --bg-alt:        #242933;
  --bg-card:       #3b4252;
  --text-0:        #d8dee9;
  --text-1:        #7b88a1;
  --text-2:        #4c566a;
  --accent:        #88c0d0;
  --accent-dim:    rgba(136, 192, 208, 0.1);
  --accent-border: rgba(136, 192, 208, 0.25);
  --border:        #434c5e;
  --border-hover:  rgba(136, 192, 208, 0.4);
  --shadow:        0 1px 3px rgba(0, 0, 0, 0.5);
}


/* GitHub Dark */
:root[data-theme="github-dark"] {
  --bg:            #0d1117;
  --bg-alt:        #161b22;
  --bg-card:       #21262d;
  --text-0:        #e6edf3;
  --text-1:        #8b949e;
  --text-2:        #6e7681;
  --accent:        #58a6ff;
  --accent-dim:    rgba(88, 166, 255, 0.1);
  --accent-border: rgba(88, 166, 255, 0.25);
  --border:        #30363d;
  --border-hover:  rgba(88, 166, 255, 0.4);
  --shadow:        0 1px 3px rgba(0, 0, 0, 0.5);
}


/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
  font-size: 16px;
  color-scheme: light dark;
}

body {
  background-color: var(--bg);
  background-size: 28px 28px;
  color: var(--text-0);
  font-family: 'Inter', system-ui, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Graph paper background — IDE themes only; basic modes stay solid */
:root[data-theme="one-dark"] body,
:root[data-theme="vscode"] body,
:root[data-theme="darcula"] body,
:root[data-theme="tokyo"] body,
:root[data-theme="dracula"] body,
:root[data-theme="monokai"] body,
:root[data-theme="nord"] body,
:root[data-theme="github-dark"] body {
  background-image:
    linear-gradient(color-mix(in srgb, var(--accent) 7%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--accent) 7%, transparent) 1px, transparent 1px);
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { display: block; max-width: 100%; }


/* Utilities */
.mono { font-family: 'JetBrains Mono', 'Fira Code', monospace; }
.accent { color: var(--accent); }

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg);
  font-weight: 600;
}
.btn-primary:hover {
  opacity: 0.85;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px var(--accent-border);
}

.btn-outline {
  background: transparent;
  color: var(--text-0);
  border: 1px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--accent-border);
  color: var(--accent);
  background: var(--accent-dim);
  transform: translateY(-1px);
}

.btn-sm  { padding: 0.45rem 1rem;  font-size: 0.8rem; }
.btn-lg  { padding: 0.85rem 2rem;  font-size: 1rem; }

.tag {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  background: var(--bg-alt);
  color: var(--text-1);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
  white-space: nowrap;
  transition: all var(--transition);
}
.tag:hover {
  border-color: var(--accent-border);
  color: var(--accent);
  background: var(--accent-dim);
}

.tag-group { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 1rem; }


/* Scroll animations */
[data-animate] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
[data-animate="fade-in"] { transform: none; }
[data-animate].is-visible { opacity: 1; transform: none; }


/* Navigation */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background var(--transition), border-bottom var(--transition), backdrop-filter var(--transition);
}

.nav.scrolled {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
html.is-dark .nav.scrolled {
  background: rgba(0, 0, 0, 0.75);
}

.nav-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

/* Nav logo — hidden at top, fades in on scroll */
.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-0);
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.3s ease, transform 0.3s ease, color var(--transition);
  pointer-events: none;
  white-space: nowrap;
}
.nav-logo-img {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--border);
  flex-shrink: 0;
}
.nav-logo.visible {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}
.nav-logo:hover { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-size: 0.875rem;
  color: var(--text-1);
  position: relative;
  transition: color var(--transition);
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width var(--transition);
}
.nav-link:hover, .nav-link.active { color: var(--text-0); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }


/* Theme dropdown */
.theme-dropdown { position: relative; flex-shrink: 0; }

.theme-dropdown-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  height: 32px;
  padding: 0 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-1);
  cursor: pointer;
  font-size: 0.8rem;
  transition: all var(--transition);
}
.theme-dropdown-btn:hover {
  border-color: var(--accent-border);
  color: var(--accent);
}

.theme-chevron {
  transition: transform 0.2s ease;
  flex-shrink: 0;
  opacity: 0.6;
}
.theme-dropdown.open .theme-chevron { transform: rotate(180deg); }

.theme-menu {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 190px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 5px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12), 0 2px 8px rgba(0, 0, 0, 0.08);
  z-index: 200;
}
html.is-dark .theme-menu {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}
.theme-dropdown.open .theme-menu { display: block; }

.theme-menu-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 7px 9px;
  border-radius: 7px;
  font-size: 0.82rem;
  color: var(--text-1);
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  font-family: inherit;
}
.theme-menu-item:hover { background: var(--bg-alt); color: var(--text-0); }
.theme-menu-item.active { color: var(--accent); }
.theme-menu-item.active .theme-dot { outline: 2px solid var(--accent); outline-offset: 1px; }

.theme-dot {
  display: inline-block;
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.theme-menu-label { flex: 1; }

#themeDropdownIcon {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.theme-btn-label {
  font-size: 0.78rem;
  font-weight: 500;
  color: inherit;
}

.theme-menu-check {
  font-size: 0.75rem;
  color: var(--accent);
  opacity: 0;
  flex-shrink: 0;
}
.theme-menu-item.active .theme-menu-check { opacity: 1; }

.theme-menu-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  flex-shrink: 0;
  color: var(--text-1);
}
.theme-menu-item:hover .theme-menu-icon,
.theme-menu-item.active .theme-menu-icon { color: var(--accent); }

.theme-menu-divider {
  height: 1px;
  background: var(--border);
  margin: 4px 2px;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  flex-shrink: 0;
}
.hamburger span {
  display: block;
  width: 22px; height: 1.5px;
  background: var(--text-0);
  border-radius: 2px;
  transition: all var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }


/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-h) + 3rem) 2rem 6rem;
  overflow: hidden;
}

.hero-bg { display: none; }
.grid-overlay { display: none; }
.glow { display: none; }

.hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  width: 100%;
  max-width: 820px;
}

.hero-name {
  font-size: clamp(2.5rem, 6.5vw, 5.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 0.75rem;
  color: var(--text-0);
  font-family: 'Inter', system-ui, sans-serif;
  transition: font-family 0s;
}

/* IDE themes — render the name in a monospace editor font */
:root[data-theme="vscode"]      .hero-name,
:root[data-theme="one-dark"]    .hero-name,
:root[data-theme="darcula"]     .hero-name,
:root[data-theme="tokyo"]       .hero-name,
:root[data-theme="dracula"]     .hero-name,
:root[data-theme="nord"]        .hero-name,
:root[data-theme="monokai"]     .hero-name,
:root[data-theme="github-dark"] .hero-name {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-weight: 600;
  letter-spacing: -0.02em;
}

/* Also switch the typing subtitle to mono in IDE themes */
:root[data-theme="vscode"]      .hero-subtitle,
:root[data-theme="one-dark"]    .hero-subtitle,
:root[data-theme="darcula"]     .hero-subtitle,
:root[data-theme="tokyo"]       .hero-subtitle,
:root[data-theme="dracula"]     .hero-subtitle,
:root[data-theme="nord"]        .hero-subtitle,
:root[data-theme="monokai"]     .hero-subtitle,
:root[data-theme="github-dark"] .hero-subtitle {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: clamp(0.85rem, 2vw, 1.1rem);
  font-weight: 400;
}

.cursor-blink {
  color: var(--accent);
  animation: blink 1s step-end infinite;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

.hero-subtitle {
  font-size: clamp(1rem, 2.2vw, 1.45rem);
  font-weight: 400;
  color: var(--accent);
  margin-bottom: 1.25rem;
  min-height: 2em;
}

.type-cursor {
  color: var(--accent);
  animation: blink 0.8s step-end infinite;
  font-weight: 300;
}

.hero-bio {
  font-size: clamp(0.95rem, 1.1vw, 1.1rem);
  color: var(--text-1);
  max-width: 540px;
  margin-bottom: 2rem;
  line-height: 1.8;
}

.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2.5rem; }
.hero-socials { display: flex; gap: 1.25rem; }

.social-link {
  color: var(--text-1);
  transition: color var(--transition), transform var(--transition);
}
.social-link:hover { color: var(--text-0); transform: translateY(-2px); }


/* Hero mesh */
.hero-mesh {
  position: relative;
  width: 420px;
  height: 420px;
  margin: 0 auto;
}

.mesh-blob {
  position: absolute;
  border-radius: 50%;
}

/* Large central ambient orb */
.mesh-blob-1 {
  width: 310px; height: 310px;
  background: var(--accent);
  filter: blur(68px);
  opacity: 0.26;
  top: 50%; left: 50%;
  margin-top: -155px; margin-left: -155px;
  animation: mesh-1 9s ease-in-out infinite;
}
html.is-dark .mesh-blob-1 { opacity: 0.45; }

/* Secondary off-centre accent cloud */
.mesh-blob-2 {
  width: 170px; height: 170px;
  background: var(--accent);
  filter: blur(44px);
  opacity: 0.17;
  top: 6%; right: 4%;
  animation: mesh-2 13s ease-in-out infinite;
}
html.is-dark .mesh-blob-2 { opacity: 0.32; }

/* Bright glowing core */
.mesh-core {
  position: absolute;
  width: 96px; height: 96px;
  top: 50%; left: 50%;
  margin-top: -48px; margin-left: -48px;
  border-radius: 50%;
  background: radial-gradient(circle at 38% 38%, var(--accent), transparent 68%);
  filter: blur(16px);
  opacity: 0.6;
  animation: mesh-core-pulse 5s ease-in-out infinite alternate;
}
html.is-dark .mesh-core { opacity: 0.9; filter: blur(12px); animation-name: mesh-core-pulse-dark; }

/* Orbital ring with a travelling dot */
.mesh-ring {
  position: absolute;
  width: 248px; height: 248px;
  top: 50%; left: 50%;
  margin-top: -124px; margin-left: -124px;
  border-radius: 50%;
  border: 1px solid var(--accent);
  opacity: 0.16;
  animation: mesh-spin 28s linear infinite;
}
html.is-dark .mesh-ring { opacity: 0.32; }

.mesh-ring::after {
  content: '';
  position: absolute;
  width: 7px; height: 7px;
  background: var(--accent);
  border-radius: 50%;
  top: -3.5px; left: 50%;
  transform: translateX(-50%);
  box-shadow: 0 0 8px 2px var(--accent);
  opacity: 0.85;
}
html.is-dark .mesh-ring::after { opacity: 1; box-shadow: 0 0 12px 3px var(--accent); }

/* Inner dashed ring */
.mesh-ring-inner {
  position: absolute;
  width: 168px; height: 168px;
  top: 50%; left: 50%;
  margin-top: -84px; margin-left: -84px;
  border-radius: 50%;
  border: 1px dashed var(--accent);
  opacity: 0.09;
  animation: mesh-spin 18s linear infinite reverse;
}
html.is-dark .mesh-ring-inner { opacity: 0.2; }

@keyframes mesh-1 {
  0%, 100% { transform: translate(0,    0)    scale(1);    }
  25%       { transform: translate(14px, -18px) scale(1.05); }
  50%       { transform: translate(-8px,  8px)  scale(1.02); }
  75%       { transform: translate(6px,  16px) scale(0.97); }
}
@keyframes mesh-2 {
  0%, 100% { transform: translate(0, 0)          scale(1);    }
  35%       { transform: translate(-18px, 14px)  scale(1.07); }
  65%       { transform: translate(12px, -18px)  scale(0.94); }
}
@keyframes mesh-core-pulse {
  from { transform: scale(0.88); opacity: 0.5; }
  to   { transform: scale(1.14); opacity: 0.7; }
}
@keyframes mesh-core-pulse-dark {
  from { transform: scale(0.88); opacity: 0.75; }
  to   { transform: scale(1.14); opacity: 1; }
}
@keyframes mesh-spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.mesh-dots {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, var(--border) 1.2px, transparent 1.2px);
  background-size: 22px 22px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 15%, transparent 78%);
  opacity: 0.65;
}
html.is-dark .mesh-dots { opacity: 0.35; }

.scroll-indicator {
  position: absolute;
  bottom: 2rem; left: 50%;
  transform: translateX(-50%);
  color: var(--text-0);
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-radius: 50%;
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 2px 12px rgba(0,0,0,0.1);
  animation: bounce 2s ease-in-out infinite;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
  z-index: 1;
}
.scroll-indicator:hover {
  color: var(--accent);
  border-color: var(--accent-border);
  background: var(--accent-dim);
}
html.is-dark .scroll-indicator {
  box-shadow: 0 2px 16px rgba(0,0,0,0.4);
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}


/* Sections */
.section { padding: 5rem 0; }
.section-alt { background: transparent; }
.section-header { margin-bottom: 2.5rem; }

.section-label { display: none; }

.section-title {
  font-size: clamp(1.6rem, 3.5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-0);
}
.section-title::after { display: none; }


/* About */
.about-layout {
  display: block;
  max-width: 680px;
}
.about-text p { color: var(--text-1); margin-bottom: 1.1rem; line-height: 1.85; font-size: 1.08rem; }
.about-text strong { color: var(--text-0); }

.about-facts {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.about-fact { display: flex; flex-direction: column; gap: 0.2rem; }
.about-fact-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--text-2);
  font-family: 'JetBrains Mono', monospace;
}
.about-fact-value {
  font-size: 0.875rem;
  color: var(--text-0);
  font-weight: 500;
}


/* Experience timeline */
.timeline { position: relative; padding-left: 2rem; }
.timeline::before {
  content: '';
  position: absolute;
  left: 0; top: 8px; bottom: 8px;
  width: 2px;
  background: var(--text-2);
  border-radius: 2px;
}

.timeline-item { position: relative; margin-bottom: 2.5rem; }
.timeline-item:last-child { margin-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: calc(-2rem + 1px); top: 1.75rem;
  transform: translateX(-50%);
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 3px var(--accent-border);
}
.section-alt .timeline-dot { border-color: var(--bg); }

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.75rem;
  box-shadow: var(--shadow);
  transition: border-color var(--transition), transform var(--transition);
}
.timeline-card:hover { border-color: var(--border-hover); }

.timeline-meta {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.timeline-role { font-size: 1rem; font-weight: 600; color: var(--text-0); margin-bottom: 0.2rem; }
.timeline-company-link {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 0.875rem;
  color: var(--accent);
  font-weight: 500;
  transition: opacity var(--transition);
}
.timeline-company-link:hover { opacity: 0.7; text-decoration: underline; }

.timeline-right {
  display: flex; flex-direction: column;
  align-items: flex-end; gap: 0.2rem; flex-shrink: 0;
}
.timeline-date { font-size: 0.8rem; color: var(--text-1); font-family: 'JetBrains Mono', monospace; }
.timeline-location { font-size: 0.78rem; color: var(--text-2); }

.timeline-ext-links { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 0.85rem; }
.timeline-ext-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.775rem;
  color: var(--accent);
  border: 1px solid var(--accent-border);
  background: var(--accent-dim);
  padding: 0.25rem 0.7rem;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  transition: all var(--transition);
}
.timeline-ext-link:hover { border-color: var(--accent); opacity: 0.8; }

.timeline-bullets { padding-left: 1.1rem; margin-bottom: 0.5rem; }
.timeline-bullets li {
  list-style: disc; color: var(--text-1);
  font-size: 0.9rem; line-height: 1.7; margin-bottom: 0.5rem;
}
.timeline-bullets li::marker { color: var(--accent); opacity: 0.5; }
.timeline-bullets strong { color: var(--text-0); }


/* Projects */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  display: flex; flex-direction: column;
  box-shadow: var(--shadow);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  position: relative; overflow: hidden;
}
.project-card::before { display: none; }
.project-card:hover {
  border-color: var(--border-hover);
}
.project-card.featured { border-color: var(--accent-border); }

/* Project banner — edge-to-edge image at top of card */
.project-banner-link {
  display: block;
  margin: -1.75rem -1.75rem 1.25rem;
  border-radius: var(--radius) var(--radius) 0 0;
  overflow: hidden;
  text-decoration: none;
}
.project-banner {
  height: 116px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), opacity var(--transition);
}
.project-banner-link:hover .project-banner { background: var(--accent-dim); }
.project-banner-img {
  max-height: 72px;
  max-width: 72%;
  width: auto;
  object-fit: cover;
  border-radius: 10px;
  display: block;
}
.project-banner-img--contain {
  object-fit: contain;
  max-height: 60px;
  max-width: 240px;
  padding: 0;
  border-radius: 8px;
}
.project-banner-svg {
  width: 290px;
  height: 100px;
  display: block;
}

.project-top {
  display: flex;
  justify-content: flex-end;
  align-items: flex-start;
  margin-bottom: 0.9rem;
}

.project-links {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.project-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.45rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-0);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  transition: all var(--transition);
  white-space: nowrap;
}
.project-link-btn:hover {
  color: var(--accent);
  border-color: var(--accent-border);
  background: var(--accent-dim);
  transform: translateY(-2px);
}
.project-link-btn--primary {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
  font-weight: 600;
}
.project-link-btn--primary:hover {
  opacity: 0.85;
  color: var(--bg);
  background: var(--accent);
  border-color: var(--accent);
}
.project-coming-soon {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-family: var(--font-mono);
  font-style: italic;
  color: var(--text-1);
  background: var(--bg-alt);
  border: 1px dashed var(--border);
  white-space: nowrap;
}

.project-name {
  font-size: 1.1rem; font-weight: 600; color: var(--text-0); margin-bottom: 0.6rem;
}
.project-name-link {
  color: var(--text-0);
  text-decoration: none;
  transition: color var(--transition);
}
.project-name-link:hover { color: var(--accent); }
.project-desc { font-size: 0.9rem; color: var(--text-1); line-height: 1.75; flex: 1; }
.projects-cta { text-align: center; }


/* Skills */
#skills { position: relative; overflow: hidden; }

.floating-icons {
  position: absolute; inset: 0;
  pointer-events: none; z-index: 0;
}
.float-icon {
  position: absolute;
  width: 40px; height: 40px;
  opacity: 0.13;
  filter: grayscale(0.2);
  animation: float-updown 6s ease-in-out infinite;
  user-select: none;
}
html.is-dark .float-icon {
  opacity: 0.25;
  filter: none;
}

@keyframes float-updown {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-14px); }
}

@keyframes float-sway {
  0%, 100% { transform: translate(0, 0); }
  25%       { transform: translate(7px, -10px); }
  50%       { transform: translate(2px, -18px); }
  75%       { transform: translate(-6px, -9px); }
}

@keyframes float-spin {
  0%   { transform: translateY(0)    rotate(0deg); }
  50%  { transform: translateY(-14px) rotate(180deg); }
  100% { transform: translateY(0)    rotate(360deg); }
}

@keyframes float-bounce {
  0%, 100% { transform: translateY(0)    scale(1); }
  40%       { transform: translateY(-18px) scale(1.18); }
  60%       { transform: translateY(-12px) scale(1.05); }
}

.skills-cloud {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  z-index: 1;
  margin-bottom: 3rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.skill-row {
  display: flex;
  align-items: flex-start;
  gap: 2rem;
  padding: 1.1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
.skill-row:last-child { border-bottom: none; }
.skill-row:hover { background: var(--bg-alt); }

.skill-row-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  font-family: 'JetBrains Mono', monospace;
  white-space: nowrap;
  padding-top: 0.35rem;
  min-width: 90px;
}

.skill-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  flex: 1;
}

.skill-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.75rem;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.82rem;
  color: var(--text-0);
  transition: all var(--transition);
  cursor: default;
}
.skill-pill:hover {
  border-color: var(--accent-border);
  color: var(--accent);
  background: var(--accent-dim);
}


/* Honors */
.honors-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  position: relative; z-index: 1;
}
.honors-title { font-size: 0.95rem; font-weight: 600; color: var(--text-0); margin-bottom: 1.5rem; }
.honors-list { display: flex; flex-direction: column; gap: 1.25rem; }
.honor-item { display: flex; align-items: flex-start; gap: 1rem; }
.honor-icon { font-size: 1.3rem; flex-shrink: 0; margin-top: 2px; }
.honor-icon-img { width: 28px; height: 28px; object-fit: contain; flex-shrink: 0; border-radius: 4px; }
.honor-item div { display: flex; flex-direction: column; gap: 0.15rem; }
.honor-item strong { font-size: 0.9rem; color: var(--text-0); }
.honor-sub { font-size: 0.8rem; color: var(--text-1); }


/* Education */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.edu-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow);
  transition: border-color var(--transition), transform var(--transition);
}
.edu-card:hover { border-color: var(--border-hover); }
.edu-card.featured-edu { border-color: var(--accent-border); }

.edu-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 1rem; }
.edu-icon { color: var(--accent); opacity: 0.7; }
.edu-icon--logo {
  opacity: 1;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 6px 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
}
.edu-logo-img {
  max-height: 28px;
  max-width: 140px;
  width: auto;
  object-fit: contain;
  display: block;
}
.edu-badge {
  font-size: 0.7rem; padding: 0.2rem 0.6rem;
  background: var(--accent-dim); color: var(--accent);
  border: 1px solid var(--accent-border);
  border-radius: 4px; font-family: 'JetBrains Mono', monospace; white-space: nowrap;
}
.edu-school { font-size: 1rem; font-weight: 600; color: var(--text-0); margin-bottom: 0.25rem; }
.edu-school-link { color: inherit; text-decoration: none; transition: color var(--transition); }
.edu-school-link:hover { color: var(--accent); }
.edu-honors { font-size: 0.8rem; color: var(--accent); font-weight: 500; margin-bottom: 0.25rem; }
.edu-degree { font-size: 0.875rem; color: var(--text-1); margin-bottom: 0.2rem; }
.edu-detail { font-size: 0.8rem; color: var(--text-1); margin-bottom: 0.2rem; font-family: 'JetBrains Mono', monospace; }
.edu-date { font-size: 0.78rem; color: var(--text-1); font-family: 'JetBrains Mono', monospace; margin-bottom: 0.75rem; }
.edu-courses {
  font-size: 0.78rem; color: var(--text-1); line-height: 1.65;
  border-top: 1px solid var(--border); padding-top: 0.75rem; margin-top: 0.25rem;
}


/* Contact */
.contact-inner { max-width: 600px; text-align: center; margin: 0 auto; }
.contact-text { font-size: 1rem; color: var(--text-1); line-height: 1.8; margin-bottom: 2rem; }
.contact-links { display: flex; justify-content: center; gap: 1rem; margin-top: 2rem; flex-wrap: wrap; }
.contact-social-link {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: 0.875rem; color: var(--text-1);
  border: 1px solid var(--border); background: var(--bg-card);
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-sm); box-shadow: var(--shadow);
  transition: all var(--transition);
}
.contact-social-link:hover {
  color: var(--accent); border-color: var(--accent-border);
  background: var(--accent-dim); transform: translateY(-2px);
}


/* Footer */
.footer {
  background: var(--bg-alt);
  padding: 2.5rem 0;
  text-align: center;
  border-top: 1px solid var(--border);
}
.footer-text { font-size: 0.875rem; color: var(--text-1); margin-bottom: 0.3rem; }
.footer-sub { font-size: 0.75rem; color: var(--text-2); }


/* Responsive */
@media (max-width: 768px) {
  .about-layout { grid-template-columns: 1fr; gap: 2rem; }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: var(--nav-h); left: 0; right: 0;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column; gap: 0;
    padding: 1rem 0 2rem;
    border-bottom: 1px solid var(--border);
    transform: translateY(-100%); opacity: 0; pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
    z-index: 99;
  }
  html.is-dark .nav-links { background: rgba(0, 0, 0, 0.95); }
  .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: all; }
  .nav-links li { width: 100%; }
  .nav-link { display: block; padding: 0.85rem 2rem; font-size: 1rem; }
  .nav-links .btn { margin: 0.5rem 2rem; }
  .hamburger { display: flex; }

  .skill-row { flex-direction: column; gap: 0.6rem; }
  .skill-row-label { min-width: auto; }

  .timeline { padding-left: 1.5rem; }
  .timeline-dot { left: calc(-1.5rem + 1px); }
  .timeline-meta { flex-direction: column; gap: 0.5rem; }
  .timeline-right { align-items: flex-start; }

  .edu-grid { grid-template-columns: 1fr; }

  .theme-menu { right: 0; }
}

@media (max-width: 480px) {
  .container { padding: 0 1.25rem; }
  .section { padding: 4rem 0; }
  .hero {
    padding-top: calc(var(--nav-h) + 1.5rem);
    padding-bottom: 4rem;
  }
  .projects-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-actions .btn { width: 100%; max-width: 240px; }
  .theme-dropdown-btn span[id] { display: none; }
}


/* First-visit theme hint */
.theme-hint {
  position: fixed;
  top: calc(var(--nav-h) + 6px);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.7s ease;
  z-index: 90;
}
.theme-hint.is-visible { opacity: 1; }
.theme-hint-arrow { color: var(--accent); display: block; }
.theme-hint-arrow path { fill: none; }
.theme-hint-text {
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  color: var(--accent);
  white-space: nowrap;
  font-style: italic;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  opacity: 0;
  transition: opacity 0.5s ease 1.1s;
}
.theme-hint.is-visible .theme-hint-text { opacity: 0.8; }