:root {
  /* Minimal editorial palette (default: light) */
  --bg: #fbfbfc;
  --bg2: #ffffff;
  --panel: rgba(10, 12, 16, 0.03);
  --panel2: rgba(10, 12, 16, 0.05);
  --text: rgba(10, 12, 16, 0.92);
  --muted: rgba(10, 12, 16, 0.62);
  --border: rgba(10, 12, 16, 0.10);
  --shadow: 0 18px 50px rgba(10, 12, 16, 0.10);

  --accent1: #111827; /* ink */
  --accent2: #2563eb; /* blue */
  --accent3: #10b981; /* green */

  --radius: 16px;
  --container: 1120px;
  --font: Inter, "Noto Sans SC", ui-sans-serif, system-ui, -apple-system, Segoe UI,
    Roboto, Arial, "Apple Color Emoji", "Segoe UI Emoji";

  --ease: cubic-bezier(0.2, 0.9, 0.2, 1);
}

html[data-theme="dark"] {
  --bg: #0b0d10;
  --bg2: #0f1319;
  --panel: rgba(255, 255, 255, 0.06);
  --panel2: rgba(255, 255, 255, 0.09);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.68);
  --border: rgba(255, 255, 255, 0.10);
  --shadow: 0 30px 70px rgba(0, 0, 0, 0.35);

  --accent1: #93c5fd;
  --accent2: #a78bfa;
  --accent3: #34d399;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(900px 520px at 20% 0%, rgba(37, 99, 235, 0.08), transparent 55%),
    radial-gradient(900px 520px at 80% 10%, rgba(16, 185, 129, 0.06), transparent 55%),
    linear-gradient(180deg, var(--bg), var(--bg2));
  line-height: 1.5;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea {
  font: inherit;
  color: inherit;
}

.container {
  width: min(var(--container), calc(100% - 48px));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 10px;
  background: var(--bg2);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 10px 12px;
  border-radius: 12px;
  z-index: 1000;
}
.skip-link:focus {
  left: 16px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: color-mix(in oklab, var(--bg2) 70%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color 180ms var(--ease), background 180ms var(--ease);
}
.site-header.is-scrolled {
  border-bottom-color: var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 160px;
}
.brand-mark {
  width: 14px;
  height: 14px;
  border-radius: 99px;
  background: linear-gradient(135deg, var(--accent2), var(--accent3));
  box-shadow: 0 0 0 6px color-mix(in oklab, var(--panel) 80%, transparent);
}
.brand-text {
  font-weight: 650;
  letter-spacing: 0.2px;
}

.nav {
  display: flex;
  gap: 14px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: color-mix(in oklab, var(--panel) 80%, transparent);
}
.nav-link {
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--muted);
  transition: background 160ms var(--ease), color 160ms var(--ease);
}
.nav-link:hover {
  background: color-mix(in oklab, var(--panel2) 90%, transparent);
  color: var(--text);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.icon-btn {
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--panel) 80%, transparent);
  cursor: pointer;
  display: inline-grid;
  place-items: center;
  position: relative;
}
.icon {
  width: 18px;
  height: 18px;
  display: inline-block;
  position: absolute;
  transition: transform 200ms var(--ease), opacity 200ms var(--ease);
}
.icon[data-icon="sun"] {
  opacity: 0;
  transform: rotate(-45deg) scale(0.8);
}
html[data-theme="light"] .icon[data-icon="sun"] {
  opacity: 1;
  transform: rotate(0) scale(1);
}
html[data-theme="light"] .icon[data-icon="moon"] {
  opacity: 0;
  transform: rotate(45deg) scale(0.8);
}
.icon[data-icon="moon"] {
  opacity: 1;
  transform: rotate(0) scale(1);
}
.icon::before {
  content: "";
  display: block;
  width: 100%;
  height: 100%;
  mask-size: contain;
  mask-repeat: no-repeat;
  mask-position: center;
  background: var(--text);
}
.icon[data-icon="moon"]::before {
  mask-image: radial-gradient(circle at 35% 35%, transparent 44%, #000 46%);
}
.icon[data-icon="sun"]::before {
  mask-image:
    radial-gradient(circle, #000 48%, transparent 50%),
    conic-gradient(from 0deg, #000 0 10%, transparent 10% 20%, #000 20% 30%, transparent 30% 40%, #000 40% 50%, transparent 50% 60%, #000 60% 70%, transparent 70% 80%, #000 80% 90%, transparent 90% 100%);
  mask-composite: intersect;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--panel) 80%, transparent);
  color: var(--text);
  cursor: pointer;
  transition: transform 160ms var(--ease), background 160ms var(--ease),
    border-color 160ms var(--ease);
  user-select: none;
}
.btn:hover {
  transform: translateY(-1px);
  background: color-mix(in oklab, var(--panel2) 90%, transparent);
  border-color: color-mix(in oklab, var(--border) 70%, transparent);
}
.btn:active {
  transform: translateY(0);
}

.btn-primary {
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent2), var(--accent3));
  box-shadow: 0 18px 40px color-mix(in oklab, var(--accent2) 18%, transparent);
}
.btn-primary:hover {
  background: linear-gradient(
    135deg,
    color-mix(in oklab, var(--accent2) 90%, white 10%),
    color-mix(in oklab, var(--accent3) 90%, white 10%)
  );
}

.btn-ghost {
  background: transparent;
}

/* Hero */
.hero {
  position: relative;
  padding: 90px 0 42px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  align-items: start;
}
.eyebrow {
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-size: 12px;
}
.hero-title {
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1.02;
  margin: 12px 0 12px;
  letter-spacing: -0.03em;
}
.accent {
  background: linear-gradient(135deg, var(--accent2), var(--accent3));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  max-width: 58ch;
}
.hero-cta {
  display: flex;
  gap: 12px;
  margin-top: 22px;
}
.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 26px;
}
.metric {
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--panel) 80%, transparent);
  border-radius: var(--radius);
  padding: 14px 14px 12px;
}
.metric-value {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.metric-label {
  margin-top: 2px;
  color: var(--muted);
  font-size: 13px;
}

.hero-panel .panel-card {
  border-radius: calc(var(--radius) + 8px);
  border: 1px solid var(--border);
  background: linear-gradient(
      180deg,
      color-mix(in oklab, var(--panel) 90%, transparent),
      transparent 70%
    ),
    color-mix(in oklab, var(--panel) 70%, transparent);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.panel-top {
  display: flex;
  gap: 8px;
  padding: 18px 18px 0;
  flex-wrap: wrap;
}
.pill {
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
  color: var(--muted);
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--panel) 75%, transparent);
}
.panel-body {
  padding: 18px;
}
.panel-title {
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}
.checklist {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}
.checklist li {
  position: relative;
  padding-left: 26px;
  color: var(--muted);
}
.checklist li::before {
  content: "";
  width: 16px;
  height: 16px;
  position: absolute;
  left: 0;
  top: 4px;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--accent2), var(--accent3));
  box-shadow: 0 10px 18px color-mix(in oklab, var(--accent2) 12%, transparent);
}
.panel-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 18px 18px;
  border-top: 1px solid var(--border);
}
.inline-link {
  font-weight: 650;
}
.muted {
  color: var(--muted);
}
.small {
  font-size: 12px;
}

.hero-backdrop {
  position: absolute;
  inset: -220px -120px auto -120px;
  height: 420px;
  background:
    radial-gradient(520px 260px at 25% 55%, rgba(37, 99, 235, 0.16), transparent 60%),
    radial-gradient(540px 260px at 75% 55%, rgba(16, 185, 129, 0.12), transparent 60%);
  filter: blur(22px);
  opacity: 0.65;
  pointer-events: none;
  z-index: -1;
}

/* Sections */
.section {
  padding: 56px 0;
}
.section-alt {
  background: color-mix(in oklab, var(--panel) 45%, transparent);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.section-head {
  margin-bottom: 22px;
}
.section-title {
  margin: 0;
  font-size: 28px;
  letter-spacing: -0.02em;
}
.section-lead {
  margin: 8px 0 0;
  color: var(--muted);
  max-width: 70ch;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  background: color-mix(in oklab, var(--panel) 75%, transparent);
  transition: transform 180ms var(--ease), background 180ms var(--ease);
}
.card:hover {
  transform: translateY(-2px);
  background: color-mix(in oklab, var(--panel2) 80%, transparent);
}
.card h3 {
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}
.tag-row,
.meta-row {
  margin-top: 14px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}
.tag {
  border: 1px solid var(--border);
  background: transparent;
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
}
.meta {
  color: var(--muted);
  font-size: 12px;
  margin-left: auto;
}

/* Work */
.work-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.work-card {
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 6px);
  padding: 18px;
  background: linear-gradient(
      180deg,
      color-mix(in oklab, var(--panel2) 55%, transparent),
      transparent 65%
    ),
    color-mix(in oklab, var(--panel) 70%, transparent);
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.18);
  transition: transform 200ms var(--ease), border-color 200ms var(--ease);
}
.work-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in oklab, var(--border) 70%, transparent);
}
.work-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.badge {
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--panel) 80%, transparent);
  color: var(--muted);
}
.work-title {
  margin: 12px 0 8px;
  letter-spacing: -0.02em;
}
.work-points {
  margin: 14px 0 0;
  padding-left: 18px;
  color: var(--muted);
  display: grid;
  gap: 6px;
}
.work-actions {
  display: flex;
  gap: 10px;
  margin-top: 16px;
  flex-wrap: wrap;
}

/* Timeline */
.timeline {
  display: grid;
  gap: 12px;
}
.timeline-item {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: color-mix(in oklab, var(--panel) 75%, transparent);
}
.timeline-dot {
  width: 12px;
  height: 12px;
  border-radius: 99px;
  background: linear-gradient(135deg, var(--accent2), var(--accent1));
  box-shadow: 0 0 0 6px color-mix(in oklab, var(--panel) 80%, transparent);
  margin-top: 6px;
}
.timeline-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.timeline-role {
  font-weight: 650;
  letter-spacing: -0.01em;
}
.timeline-time {
  color: var(--muted);
  font-size: 12px;
}

/* Writing */
.post-title {
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}
.post-title a:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* CTA / Contact */
.cta {
  border-radius: calc(var(--radius) + 10px);
  border: 1px solid var(--border);
  background:
    radial-gradient(600px 260px at 20% 0%, rgba(124, 58, 237, 0.22), transparent 55%),
    radial-gradient(600px 260px at 80% 0%, rgba(6, 182, 212, 0.18), transparent 55%),
    color-mix(in oklab, var(--panel) 70%, transparent);
  box-shadow: var(--shadow);
  padding: 18px;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 18px;
}
.cta-title {
  margin: 0;
  font-size: 28px;
  letter-spacing: -0.02em;
}
.cta-lead {
  margin: 10px 0 0;
  color: var(--muted);
  max-width: 60ch;
}
.cta-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.cta-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  align-content: start;
}
.field {
  display: grid;
  gap: 8px;
}
.field-full {
  grid-column: 1 / -1;
}
.label {
  color: var(--muted);
  font-size: 12px;
}
input,
textarea {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 10px 12px;
  background: color-mix(in oklab, var(--panel) 80%, transparent);
  outline: none;
  transition: border-color 160ms var(--ease), background 160ms var(--ease);
}
input:focus,
textarea:focus {
  border-color: color-mix(in oklab, var(--accent2) 60%, var(--border));
  background: color-mix(in oklab, var(--panel2) 80%, transparent);
}

/* Footer */
.site-footer {
  padding: 28px 0 36px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  flex-wrap: wrap;
  border-top: 1px solid var(--border);
  padding-top: 18px;
}
.footer-right {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.footer-link {
  color: var(--muted);
}
.footer-link:hover {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 960px) {
  .nav {
    display: none;
  }
  .brand {
    min-width: unset;
  }
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero {
    padding-top: 66px;
  }
  .grid-3,
  .work-grid {
    grid-template-columns: 1fr;
  }
  .cta {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    transition: none;
    transform: none;
    opacity: 1;
  }
  .btn {
    transition: none;
  }
  .btn:hover {
    transform: none;
  }
}