:root {
  --bg: oklch(98% 0.006 75);
  --fg: oklch(22% 0.01 75);
  --fg-muted: oklch(48% 0.012 75);
  --border: oklch(90% 0.008 75);
  --accent: oklch(56% 0.13 35);
  --accent-hover: oklch(46% 0.13 35);
  --chip-bg: oklch(93% 0.01 75);
  --chip-fg: oklch(30% 0.01 75);
  --card-bg: oklch(99% 0.004 75);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Geist', system-ui, -apple-system, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--fg);
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 18px 32px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.brand {
  font-size: 17px;
  font-weight: 600;
  color: var(--fg);
}
.brand:hover { color: var(--fg); }

.nav {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--fg-muted);
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
}
.nav-link:hover { color: var(--fg-muted); }
.nav-link.active {
  color: var(--fg);
  border-bottom-color: var(--accent);
}

/* Main / pages */

.main {
  max-width: 720px;
  margin: 0 auto;
  padding: 64px 24px 96px;
}

.page { display: none; }
.page.active { display: block; }

.page p {
  font-size: 17px;
  line-height: 1.7;
  margin: 0 0 20px;
}
.page p:last-child { margin-bottom: 0; }

.hero { margin-bottom: 44px; }

.eyebrow {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 14px;
}

.hero-title {
  font-size: 42px;
  font-weight: 700;
  margin: 0 0 10px;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--fg-muted);
  margin: 0;
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  margin: 0 0 8px;
}

.page-subtitle {
  font-size: 16px;
  color: var(--fg-muted);
  margin: 0 0 32px;
}

.section-title {
  font-size: 19px;
  font-weight: 600;
  margin: 0 0 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 20px;
  border: 1px solid oklch(70% 0.01 75);
  border-radius: 8px;
  color: var(--fg);
  font-size: 14px;
  font-weight: 500;
}
.btn:hover { color: var(--fg); background: var(--chip-bg); }
.btn-outline { background: transparent; }
.btn-sm { height: 32px; padding: 0 14px; font-size: 13px; border-radius: 7px; }

/* Resume: timeline */

.timeline { margin-bottom: 40px; }

.timeline-item {
  display: flex;
  gap: 20px;
}

.timeline-rail {
  width: 12px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.timeline-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
  flex-shrink: 0;
}
.timeline-item.selected .timeline-dot { background: var(--accent); }

.timeline-line {
  width: 2px;
  flex: 1;
  background: var(--border);
  margin-top: 4px;
}
.timeline-item:last-child .timeline-line { background: transparent; }

.timeline-body {
  flex: 1;
  padding-bottom: 28px;
  cursor: pointer;
  background: none;
  border: none;
  text-align: left;
  font: inherit;
  color: inherit;
  width: 100%;
}

.timeline-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.timeline-meta { min-width: 0; }

.timeline-period {
  font-size: 13px;
  color: var(--fg-muted);
  font-family: monospace;
  margin-bottom: 4px;
}

.timeline-role {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 2px;
  color: var(--fg);
}
.timeline-item.selected .timeline-role { color: var(--accent); }

.timeline-org {
  font-size: 14px;
  color: var(--fg-muted);
}

.timeline-chevron {
  font-size: 13px;
  color: var(--fg-muted);
  transform: rotate(0deg);
  transition: transform 0.15s;
  margin-left: 12px;
  flex-shrink: 0;
}
.timeline-item.selected .timeline-chevron {
  transform: rotate(90deg);
  color: var(--accent);
}

.timeline-desc {
  font-size: 15px;
  line-height: 1.6;
  margin-top: 10px;
  display: none;
}
.timeline-item.selected .timeline-desc { display: block; }

.timeline-metrics {
  display: none;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 16px;
  margin-top: 16px;
}
.timeline-item.selected .timeline-metrics { display: grid; }

.metric-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.2;
}

.metric-label {
  font-size: 12px;
  color: var(--fg-muted);
}

/* Resume: skills */

.skill-group { margin-bottom: 20px; }

.skill-group-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--fg-muted);
  margin-bottom: 10px;
}

.skill-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.skill-pill {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--chip-bg);
  font-size: 13px;
  font-weight: 500;
  color: var(--chip-fg);
}

.skill-groups { margin-bottom: 40px; }

/* Projects */

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  align-items: start;
}

.project-heading {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.project-heading h2 {
  font-size: 22px;
  font-weight: 700;
  margin: 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--chip-bg);
  font-size: 12px;
  font-weight: 500;
  color: var(--chip-fg);
}
.badge-shrink { flex-shrink: 0; }

.demo-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  background: var(--card-bg);
}

.demo-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 4px;
}

.demo-card-score { font-size: 16px; font-weight: 600; }

.demo-card-caption {
  font-size: 13px;
  color: var(--fg-muted);
  margin-bottom: 16px;
}

.progress-track {
  width: 100%;
  height: 8px;
  border-radius: 999px;
  background: var(--border);
  overflow: hidden;
  margin-bottom: 12px;
}

.progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 999px;
}

.demo-card-note {
  font-size: 13px;
  color: var(--fg-muted);
  margin: 0 0 16px;
}

.divider {
  height: 1px;
  background: var(--border);
  margin: 48px 0;
}

.store-buttons {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.store-buttons .btn { height: 36px; }

.screenshot-placeholder {
  width: 100%;
  max-width: 200px;
  aspect-ratio: 9 / 16;
  margin: 0 auto;
  background-image: repeating-linear-gradient(135deg, oklch(94% 0.01 75) 0px, oklch(94% 0.01 75) 8px, oklch(97% 0.006 75) 8px, oklch(97% 0.006 75) 16px);
  border: 1px solid var(--border);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.screenshot-placeholder span {
  font-family: monospace;
  font-size: 11px;
  color: var(--fg-muted);
  text-align: center;
  padding: 0 16px;
}

/* Writing */

.post-list { margin-bottom: 28px; }

.post-link {
  display: block;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  color: var(--fg);
}
.post-link:hover { color: var(--fg); }

.post-title { font-size: 18px; font-weight: 600; margin-bottom: 4px; }
.post-meta { font-size: 14px; color: var(--fg-muted); margin-bottom: 6px; }
.post-cta { font-size: 14px; color: var(--accent); }

/* Contact */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.contact-card {
  display: block;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: inherit;
  background: var(--card-bg);
}
.contact-card:hover { color: inherit; }

.contact-label {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent);
  margin-bottom: 10px;
}

.contact-value {
  font-size: 16px;
  font-weight: 500;
  word-break: break-word;
}

/* Footer */

.site-footer {
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 24px 48px;
  font-size: 13px;
  color: var(--fg-muted);
  border-top: 1px solid var(--border);
}

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

.link-button {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  color: inherit;
  cursor: pointer;
}
.link-button:hover { color: var(--fg); }

/* Footer game */

.game-wrap { margin-top: 16px; }

.game-area {
  position: relative;
  width: 100%;
  height: 140px;
  background: linear-gradient(180deg, oklch(80% 0.07 240), oklch(90% 0.035 240));
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  user-select: none;
}

.game-sun {
  position: absolute;
  left: 14px;
  top: 12px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: oklch(88% 0.12 85);
}

.game-cloud {
  position: absolute;
  border-radius: 10px;
  background: oklch(99% 0.005 240 / 0.95);
}
.game-cloud-1 { top: 18px; width: 34px; height: 16px; left: 40px; }
.game-cloud-2 { top: 34px; width: 26px; height: 12px; background: oklch(99% 0.005 240 / 0.8); left: 200px; }

.mesa-layer {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 12px;
  background-repeat: repeat-x;
  background-position: 0 bottom;
  pointer-events: none;
}

.mesa-far {
  height: 34px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0,0,220,34'%3E%3Cpath d='M0,34L26,34Q50,10,74,34L220,34Z' fill='rgba(185,145,118,0.4)'/%3E%3C/svg%3E");
  background-size: 220px 34px;
}

.mesa-near {
  height: 50px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0,0,320,50'%3E%3Cpath d='M0,50L18,50Q36,20,54,50L140,50Q168,8,196,50L320,50Z' fill='rgba(158,105,78,0.55)'/%3E%3C/svg%3E");
  background-size: 320px 50px;
}

.game-ground {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 12px;
  background: oklch(80% 0.05 85);
  border-top: 2px solid oklch(55% 0.08 85);
  background-image: repeating-linear-gradient(90deg, oklch(65% 0.08 85) 0px, oklch(65% 0.08 85) 4px, transparent 4px, transparent 22px);
}

.ball-shadow {
  position: absolute;
  bottom: 12px;
  border-radius: 50%;
  background: oklch(20% 0.01 90 / 0.2);
  filter: blur(1px);
}

.ball {
  position: absolute;
  border-radius: 50%;
  background: conic-gradient(from 0deg, oklch(62% 0.2 25) 0deg 60deg, oklch(97% 0.01 90) 60deg 120deg, oklch(60% 0.18 230) 120deg 180deg, oklch(97% 0.01 90) 180deg 240deg, oklch(75% 0.17 90) 240deg 300deg, oklch(97% 0.01 90) 300deg 360deg);
  border: 1px solid oklch(30% 0.02 90 / 0.4);
  box-shadow: inset -3px -3px 5px oklch(20% 0 0 / 0.15);
  z-index: 3;
}

.cactus {
  position: absolute;
  background: oklch(50% 0.14 145);
  border: 2px solid oklch(30% 0.1 145);
  border-radius: 3px;
  z-index: 3;
}

.arrow-tail {
  position: absolute;
  height: 3px;
  background: oklch(45% 0.03 250);
  border-radius: 2px;
  z-index: 3;
}

.arrow-head {
  position: absolute;
  width: 0;
  height: 0;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  border-right: 10px solid oklch(45% 0.03 250);
  z-index: 3;
}

.game-score {
  position: absolute;
  top: 8px;
  right: 10px;
  font-size: 12px;
  font-weight: 600;
  color: oklch(25% 0.02 85);
  font-family: monospace;
}

.game-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: oklch(98% 0.006 75 / 0.85);
  font-size: 13px;
}

.game-hint {
  font-size: 12px;
  color: var(--fg-muted);
  margin-top: 8px;
}
.game-hint .link-button { color: var(--accent); }

@media (max-width: 480px) {
  .site-header { padding: 16px 20px; }
  .hero-title { font-size: 34px; }
}