/* ============ Reset & base ============ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
body {
  font-family: "Inter", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  font-feature-settings: "ss01";
}
::selection {
  background: var(--accent);
  color: var(--bg);
}
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg);
}
::-webkit-scrollbar-thumb {
  background: var(--line);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-soft);
}
a {
  color: inherit;
}
img {
  display: block;
  max-width: 100%;
}
button {
  font: inherit;
  cursor: pointer;
}

.cursor-glow {
  position: fixed;
  left: 0;
  top: 0;
  z-index: 0;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  pointer-events: none;
  opacity: 0;
  background: radial-gradient(circle, var(--accent-glow), transparent 68%);
  filter: blur(8px);
  transform: translate3d(-50%, -50%, 0);
  transition: opacity 450ms var(--ease-quiet);
  will-change: transform, opacity;
}

.cursor-glow.is-visible {
  opacity: 1;
}

.hero,
.section,
.footer {
  position: relative;
  z-index: 1;
}

@media (hover: none), (pointer: coarse) {
  .cursor-glow {
    display: none;
  }
}

/* ============ Theme variables ============ */
:root {
  --bg: #0a0a0a;
  --bg-elev: #111111;
  --bg-elev-2: #181818;
  --text: #ffffff;
  --text-soft: #dadada;
  --text-mute: #7a7a7a;
  --accent: rgb(200, 170, 130);
  --accent-soft: rgba(200, 170, 130, 0.25);
  --accent-glow: rgba(200, 170, 130, 0.08);
  --line: rgba(255, 255, 255, 0.1);
  --line-soft: rgba(255, 255, 255, 0.05);
  --ease-quiet: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-precise: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-emphasis: cubic-bezier(0.16, 1, 0.3, 1);
  --font-mono: "JetBrains Mono", monospace;
  --font-sans: "Inter", sans-serif;
}
[data-theme="dim"] {
  --bg: #15171a;
  --bg-elev: #1c1e22;
  --bg-elev-2: #25282c;
  --text: #e8e8e8;
  --text-soft: #b0b0b0;
  --text-mute: #6a6a6a;
  --line: rgba(255, 255, 255, 0.08);
  --line-soft: rgba(255, 255, 255, 0.04);
}
[data-theme="light"] {
  --bg: #f5f2ec;
  --bg-elev: #ffffff;
  --bg-elev-2: #ebe7dd;
  --text: #1a1a1a;
  --text-soft: #4a4a4a;
  --text-mute: #888888;
  --accent: rgb(140, 100, 40);
  --accent-soft: rgba(140, 100, 40, 0.2);
  --accent-glow: rgba(140, 100, 40, 0.08);
  --line: rgba(0, 0, 0, 0.12);
  --line-soft: rgba(0, 0, 0, 0.06);
}

/* ============ Smooth theme color transitions ============ */
body,
.nav,
.terminal,
.terminal-bar,
.terminal-body,
.code-block,
.code-bar,
.code-block pre,
.card,
.article-card,
.stat-card,
.repo-card,
.footer,
.meta-block,
.timeline-item,
.theme-toggle,
.tag,
.btn,
.copy-btn,
.section,
.progress-track {
  transition:
    background-color 500ms var(--ease-quiet),
    color 500ms var(--ease-quiet),
    border-color 500ms var(--ease-quiet);
}
.card,
.article-card,
.repo-card {
  transition:
    background-color 500ms var(--ease-quiet),
    color 500ms var(--ease-quiet),
    border-color 500ms var(--ease-quiet),
    transform 400ms var(--ease-quiet);
}

/* ============ Reading progress bar ============ */
.progress-track {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: transparent;
  z-index: 1000;
  pointer-events: none;
}
.progress-bar {
  height: 100%;
  background: var(--accent);
  width: 0%;
  transition: width 50ms linear;
  box-shadow: 0 0 12px var(--accent-soft);
}

/* ============ Nav ============ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line-soft);
}
[data-theme="dim"] .nav {
  background: rgba(21, 23, 26, 0.7);
}
[data-theme="light"] .nav {
  background: rgba(245, 242, 236, 0.8);
}
.nav-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.95rem;
}
.logo-mark {
  color: var(--accent);
}
.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}
.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-soft);
  text-decoration: none;
  text-transform: lowercase;
  letter-spacing: 0.02em;
  transition: color 300ms var(--ease-quiet);
  position: relative;
  padding: 0.25rem 0;
}
.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 400ms var(--ease-quiet);
}
.nav-links a:hover {
  color: var(--accent);
}
.nav-links a:hover::after {
  width: 100%;
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* ============ 3-state theme toggle ============ */
.theme-toggle {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--line);
  background: var(--bg-elev);
}
.theme-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: none;
  background: transparent;
  color: var(--text-mute);
  transition:
    color 300ms var(--ease-quiet),
    background 300ms var(--ease-quiet);
}
.theme-btn:hover {
  color: var(--text-soft);
}
.theme-btn.active {
  color: var(--accent);
  background: var(--accent-glow);
}
.nav-gh {
  color: var(--text-soft);
  transition: color 300ms var(--ease-quiet);
  display: flex;
  align-items: center;
}
.nav-gh:hover {
  color: var(--accent);
}

/* ============ Hero ============ */
.hero {
  min-height: 100vh;
  padding: 8rem 2rem 6rem;
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  position: relative;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 4rem;
  width: 100%;
}
.hero-main {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}
.terminal {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  overflow: hidden;
  position: relative;
}
.terminal::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 2px;
  height: 100%;
  background: var(--accent);
  opacity: 0.6;
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--line-soft);
  background: var(--bg-elev-2);
}
.term-prompt {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--accent-soft);
}
.term-title {
  font-size: 0.72rem;
  color: var(--text-mute);
  letter-spacing: 0.02em;
}
.terminal-body {
  padding: 1.75rem;
  min-height: 360px;
}
.typewriter {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.95;
  white-space: pre-wrap;
  word-break: break-word;
}
.term-line {
  display: block;
  min-height: 1.65em;
}
.term-cmd {
  color: var(--accent);
}
.term-out {
  color: var(--text-soft);
  padding-left: 1rem;
}
.caret {
  display: inline-block;
  color: var(--accent);
  animation: blink 1s steps(2) infinite;
  margin-left: 2px;
  font-weight: 400;
}
@keyframes blink {
  0%,
  50% {
    opacity: 1;
  }
  51%,
  100% {
    opacity: 0;
  }
}

.hero-cta {
  display: flex;
  gap: 1rem;
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 800ms var(--ease-quiet),
    transform 800ms var(--ease-quiet);
}
.hero-cta.shown {
  opacity: 1;
  transform: translateY(0);
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  text-decoration: none;
  text-transform: lowercase;
  letter-spacing: 0.04em;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text-soft);
  transition:
    background 300ms var(--ease-quiet),
    color 300ms var(--ease-quiet),
    border-color 300ms var(--ease-quiet);
}
.btn-primary {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}
.btn-primary:hover {
  background: transparent;
  color: var(--accent);
}
.btn-ghost:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.btn svg {
  transition: transform 300ms var(--ease-quiet);
}
.btn:hover svg {
  transform: translateX(3px);
}

.hero-meta {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  align-self: stretch;
  border-left: 1px solid var(--line);
  padding-left: 2rem;
  padding-top: 0.5rem;
}
.meta-block {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.meta-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-mute);
}
.meta-value {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.status-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-soft);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.4;
    transform: scale(0.85);
  }
}

/* ============ Section base ============ */
.section {
  padding: 8rem 2rem;
  border-top: 1px solid var(--line-soft);
  position: relative;
}
.section-inner {
  max-width: 1400px;
  margin: 0 auto;
}
.section-head {
  margin-bottom: 5rem;
  max-width: 60rem;
}
.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--accent);
  margin-bottom: 1.5rem;
  position: relative;
  padding-left: 2.5rem;
}
.eyebrow::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 1.75rem;
  height: 1px;
  background: var(--accent);
}
.section-title {
  font-family: var(--font-sans);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.025em;
}

/* ============ About - sticky two-column ============ */
.sticky-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}
.sticky-pair .left {
  position: sticky;
  top: 8rem;
}
.sticky-pair .right {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  font-size: 1.05rem;
  color: var(--text-soft);
  line-height: 1.7;
}
.lead {
  font-size: 1.3rem;
  color: var(--text);
  line-height: 1.45;
  font-weight: 500;
  letter-spacing: -0.01em;
}
.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}
.tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.4rem 0.85rem;
  border: 1px solid var(--line);
  color: var(--text-soft);
  text-transform: lowercase;
  transition:
    color 300ms var(--ease-quiet),
    border-color 300ms var(--ease-quiet),
    background 300ms var(--ease-quiet);
}
.tag:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ============ Timeline ============ */
.timeline {
  display: flex;
  flex-direction: column;
}
.timeline-item {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 3rem;
  padding: 2.5rem 0;
  border-top: 1px solid var(--line-soft);
  transition: padding 500ms var(--ease-quiet);
}
.timeline-item:first-child {
  border-top: 1px solid var(--line);
}
.timeline-item:hover {
  padding-left: 1.25rem;
}
.timeline-year {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  letter-spacing: 0.02em;
}
.timeline-role {
  font-family: var(--font-sans);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.015em;
  color: var(--text);
}
.timeline-desc {
  color: var(--text-soft);
  font-size: 1rem;
  line-height: 1.65;
  max-width: 50rem;
}

/* ============ Code block with copy ============ */
.code-block {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  overflow: hidden;
  position: relative;
  transition: border-color 400ms var(--ease-quiet);
}
.code-block.copied {
  border-color: var(--accent);
}
.code-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--line-soft);
  background: var(--bg-elev-2);
}
.code-filename {
  font-size: 0.75rem;
  color: var(--text-mute);
  letter-spacing: 0.02em;
}
.code-filename::before {
  content: "▸ ";
  color: var(--accent);
}
.copy-btn {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text-mute);
  padding: 0.4rem 0.85rem;
  transition:
    color 300ms var(--ease-quiet),
    border-color 300ms var(--ease-quiet),
    background 300ms var(--ease-quiet);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.copy-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.copy-btn.copied {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-glow);
}
.copy-btn .copy-flash {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--text-mute);
  border-radius: 50%;
  transition: background 300ms var(--ease-quiet);
}
.copy-btn:hover .copy-flash,
.copy-btn.copied .copy-flash {
  background: var(--accent);
}
.code-block pre {
  padding: 1.5rem;
  overflow-x: auto;
  line-height: 1.85;
}
.code-block code {
  font-family: var(--font-mono);
  color: var(--text-soft);
  font-size: 0.85rem;
}
.c-k {
  color: var(--accent);
}
.c-s {
  color: var(--text);
}
.c-c {
  color: var(--text-mute);
  font-style: italic;
}

/* ============ Work / project cards ============ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}
.card {
  background: var(--bg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  min-height: 300px;
  cursor: pointer;
  position: relative;
  text-decoration: none;
  color: inherit;
}
.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 500ms var(--ease-quiet);
}
.card:hover {
  transform: translateY(-6px);
  background: var(--bg-elev);
}
.card:hover::before {
  transform: scaleX(1);
}
.card:hover .card-arrow {
  color: var(--accent);
  transform: translate(3px, -3px);
}
.card:hover .card-title {
  color: var(--accent);
}
.card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.card-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-mute);
}
.card-arrow {
  font-size: 1.1rem;
  color: var(--text-mute);
  transition:
    color 300ms var(--ease-quiet),
    transform 300ms var(--ease-quiet);
}
.card-title {
  font-family: var(--font-sans);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--text);
  transition: color 300ms var(--ease-quiet);
}
.card-desc {
  color: var(--text-soft);
  font-size: 0.95rem;
  line-height: 1.6;
  flex-grow: 1;
}
.card-foot {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  padding-top: 1rem;
  border-top: 1px solid var(--line-soft);
}
.card-foot span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-mute);
}

/* ============ Learning cards ============ */
.article-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}
.article-card {
  background: var(--bg);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  cursor: default;
  text-decoration: none;
  color: inherit;
  position: relative;
}
.article-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 500ms var(--ease-quiet);
}
.article-card:hover {
  transform: translateY(-6px);
  background: var(--bg-elev);
}
.article-card:hover::before {
  transform: scaleX(1);
}
.article-card:hover .article-title {
  color: var(--accent);
}
.article-card:hover .article-arrow {
  transform: translateX(6px);
  color: var(--accent);
}
.article-meta {
  display: flex;
  gap: 1rem;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}
.article-meta time {
  color: var(--text-mute);
}
.article-tag {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.article-title {
  font-family: var(--font-sans);
  font-size: 1.55rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.025em;
  color: var(--text);
  transition: color 300ms var(--ease-quiet);
}
.article-excerpt {
  color: var(--text-soft);
  font-size: 0.95rem;
  line-height: 1.6;
  flex-grow: 1;
}
.article-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-mute);
  padding-top: 1rem;
  border-top: 1px solid var(--line-soft);
}
.article-arrow {
  transition:
    color 300ms var(--ease-quiet),
    transform 300ms var(--ease-quiet);
}

/* ============ GitHub stats ============ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  margin-bottom: 4rem;
}
.stat-card {
  background: var(--bg);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 600ms var(--ease-quiet);
}
.stat-card:hover::before {
  transform: scaleX(1);
}
.stat-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-mute);
}
.stat-value {
  font-family: var(--font-mono);
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.025em;
  line-height: 1;
}
.stat-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-mute);
  margin-top: 0.25rem;
}

.repo-list-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-mute);
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line-soft);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.repo-list-title .live-dot {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--accent);
  font-size: 0.7rem;
}
.live-dot::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}
.repo-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}
.repo-card {
  background: var(--bg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  text-decoration: none;
  color: inherit;
  position: relative;
}
.repo-card:hover {
  background: var(--bg-elev);
  transform: translateY(-3px);
}
.repo-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.repo-name {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--text-mute);
  font-weight: 400;
  letter-spacing: -0.01em;
  word-break: break-all;
}
.repo-name strong {
  color: var(--text);
  font-weight: 700;
}
.repo-lang {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  white-space: nowrap;
}
.repo-desc {
  font-size: 0.85rem;
  color: var(--text-soft);
  line-height: 1.55;
  flex-grow: 1;
}
.repo-stats {
  display: flex;
  gap: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-mute);
  padding-top: 0.75rem;
  border-top: 1px solid var(--line-soft);
}
.repo-stat {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.repo-stat svg {
  width: 12px;
  height: 12px;
  fill: currentColor;
}

/* ============ Footer ============ */
.footer {
  padding: 6rem 2rem 2rem;
  border-top: 1px solid var(--line-soft);
  background: var(--bg);
}
.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  padding-bottom: 4rem;
  border-bottom: 1px solid var(--line-soft);
}
.footer-title {
  font-family: var(--font-sans);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.025em;
  margin-bottom: 2rem;
}
.footer-email {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-soft);
  padding-bottom: 0.3rem;
  transition: border-color 300ms var(--ease-quiet);
  display: inline-block;
}
.footer-email:hover {
  border-color: var(--accent);
}
.footer-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}
.link-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.link-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-mute);
  margin-bottom: 0.5rem;
}
.link-group a {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-soft);
  text-decoration: none;
  transition: color 300ms var(--ease-quiet);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.link-group a:hover {
  color: var(--accent);
}
.link-group a::before {
  content: "→";
  color: var(--text-mute);
  transition: color 300ms var(--ease-quiet);
}
.link-group a:hover::before {
  color: var(--accent);
}
.link-group p {
  font-size: 0.85rem;
  color: var(--text-soft);
  line-height: 1.6;
}
.footer-bottom {
  max-width: 1400px;
  margin: 0 auto;
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-mute);
  letter-spacing: 0.02em;
}

/* ============ Animations ============ */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 900ms var(--ease-quiet),
    transform 900ms var(--ease-quiet);
  will-change: transform, opacity;
}
.fade-up.in {
  opacity: 1;
  transform: translateY(0);
}
.fade-up.delay-1 {
  transition-delay: 100ms;
}
.fade-up.delay-2 {
  transition-delay: 200ms;
}
.fade-up.delay-3 {
  transition-delay: 300ms;
}

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .hero-meta {
    flex-direction: row;
    flex-wrap: wrap;
    border-left: none;
    border-top: 1px solid var(--line);
    padding-left: 0;
    padding-top: 2rem;
    gap: 2rem;
  }
  .meta-block {
    flex: 1 1 180px;
  }
  .sticky-pair {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .sticky-pair .left {
    position: static;
  }
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .article-list {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .repo-grid {
    grid-template-columns: 1fr;
  }
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .nav-links {
    display: none;
  }
}
@media (max-width: 640px) {
  .hero {
    padding: 7rem 1.5rem 4rem;
  }
  .section {
    padding: 5rem 1.5rem;
  }
  .nav-inner {
    padding: 1rem 1.5rem;
    gap: 1rem;
  }
  .card-grid {
    grid-template-columns: 1fr;
  }
  .terminal-body {
    padding: 1.25rem;
    min-height: 320px;
  }
  .typewriter {
    font-size: 0.8rem;
  }
  .timeline-item {
    grid-template-columns: 1fr;
    gap: 0.5rem;
    padding: 2rem 0;
  }
  .footer-links {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 0.5rem;
  }
  .hero-cta {
    flex-direction: column;
    align-items: flex-start;
  }
  .btn {
    width: 100%;
    justify-content: center;
  }
  .stat-value {
    font-size: 2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}