/* ---------- tokens ---------- */
:root {
  --bg: #f8f9fa;
  --surface: #ffffff;
  --surface-2: #eef2f5;
  --text: #15181c;
  --muted: #646b73;
  --border: #e2e6ea;
  --border-strong: #c5ccd3;
  --accent: #3a84ac;
  --accent-2: #5bbccb;
  --accent-3: #234b8a;
  --accent-ink: #ffffff;
  --accent-soft: rgba(58, 132, 172, 0.10);
  --shadow: 0 1px 2px rgba(0,0,0,.04), 0 12px 32px -16px rgba(20,40,60,.22);
  --radius: 14px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --max: 1120px;
  --gutter: clamp(16px, 4vw, 40px);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e1114;
    --surface: #161a1f;
    --surface-2: #1d2329;
    --text: #eef1f4;
    --muted: #959ca4;
    --border: #262c33;
    --border-strong: #3a424b;
    --accent: #5bbccb;
    --accent-2: #8dd6e0;
    --accent-3: #3a84ac;
    --accent-ink: #0e1114;
    --accent-soft: rgba(91, 188, 203, 0.12);
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 16px 40px -16px rgba(0,0,0,.7);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0e1114;
  --surface: #161a1f;
  --surface-2: #1d2329;
  --text: #eef1f4;
  --muted: #959ca4;
  --border: #262c33;
  --border-strong: #3a424b;
  --accent: #5bbccb;
  --accent-2: #8dd6e0;
  --accent-3: #3a84ac;
  --accent-ink: #0e1114;
  --accent-soft: rgba(91, 188, 203, 0.12);
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 16px 40px -16px rgba(0,0,0,.7);
  color-scheme: dark;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
h1, h2, h3 { margin: 0; line-height: 1.1; letter-spacing: -0.02em; font-weight: 600; }
p { margin: 0; }
.mono { font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.01em; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: var(--accent-ink); padding: 8px 12px; border-radius: 8px; }
.skip:focus { left: 8px; z-index: 100; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

main { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
section { padding: clamp(56px, 9vw, 112px) 0; border-top: 1px solid var(--border); }
section.hero { border-top: 0; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--max); margin: 0 auto; padding: 14px var(--gutter);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
}
.wordmark { display: inline-flex; align-items: center; gap: 10px; }
.wordmark img { width: 34px; height: 34px; display: block; }
.wordmark .wm { font-family: "Permanent Marker", var(--font); font-size: 1.35rem; letter-spacing: 0.01em; line-height: 1; transform: translateY(1px); }
.wordmark:hover { text-decoration: none; }
.site-nav { display: flex; align-items: center; gap: 22px; }
.site-nav a { color: var(--muted); font-size: 0.92rem; font-weight: 500; }
.site-nav a:hover { color: var(--text); text-decoration: none; }
@media (max-width: 520px) {
  .site-nav { gap: 14px; }
  .wordmark .wm { font-size: 1.15rem; }
}
@media (max-width: 400px) {
  .wordmark .wm { display: none; }
}
.icon-btn {
  display: inline-grid; place-items: center; width: 36px; height: 36px;
  border: 1px solid var(--border); border-radius: 10px; background: var(--surface);
  color: var(--text); cursor: pointer; transition: border-color .15s, background .15s;
}
.icon-btn:hover { border-color: var(--border-strong); background: var(--surface-2); }
.icon-moon { display: none; }
:root[data-theme="dark"] .icon-sun { display: none; }
:root[data-theme="dark"] .icon-moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .icon-sun { display: none; }
  :root:not([data-theme="light"]) .icon-moon { display: block; }
}

/* ---------- hero ---------- */
.hero { padding-top: clamp(48px, 10vw, 120px); position: relative; }
.hero-mark {
  position: absolute; right: 0; top: clamp(40px, 8vw, 96px);
  width: clamp(160px, 28vw, 360px); height: auto;
  opacity: 0.9; pointer-events: none;
}
@media (max-width: 760px) { .hero-mark { display: none; } }
.eyebrow { color: var(--muted); margin-bottom: 18px; }
.hero h1 {
  font-size: clamp(2.6rem, 7.5vw, 5.4rem);
  font-weight: 700; letter-spacing: -0.04em; line-height: 1.02;
  max-width: 14ch;
}
.hero h1 em { font-style: normal; color: var(--accent); }
.lede { max-width: 56ch; margin-top: 24px; font-size: 1.1rem; color: var(--muted); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 18px; border-radius: 999px;
  border: 1px solid var(--border-strong); background: var(--surface);
  font-weight: 500; font-size: 0.95rem; color: var(--text);
  transition: transform .15s, background .15s, border-color .15s;
}
.btn:hover { text-decoration: none; background: var(--surface-2); transform: translateY(-1px); }
.btn.primary { background: var(--text); color: var(--bg); border-color: var(--text); }
.btn.primary:hover { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.hero-stats {
  display: flex; flex-wrap: wrap; gap: 28px 48px;
  margin: 56px 0 0; padding-top: 28px; border-top: 1px solid var(--border);
}
.hero-stats > div { display: flex; flex-direction: column; gap: 2px; }
.hero-stats dt { font-family: var(--mono); font-size: 0.72rem; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; order: 2; }
.hero-stats dd { margin: 0; font-size: 1.6rem; font-weight: 600; letter-spacing: -0.02em; order: 1; }

/* ---------- sections ---------- */
.section-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 16px 32px; margin-bottom: 36px; }
.section-head h2 { font-size: clamp(1.7rem, 3.2vw, 2.3rem); }
.section-sub { color: var(--muted); }

/* filters */
.filters { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font-family: var(--mono); font-size: 0.76rem;
  padding: 6px 12px; border-radius: 999px;
  border: 1px solid var(--border); background: transparent; color: var(--muted);
  cursor: pointer; transition: all .15s;
}
.chip:hover { border-color: var(--border-strong); color: var(--text); }
.chip[aria-pressed="true"] { background: var(--text); color: var(--bg); border-color: var(--text); }

/* ---------- grid / cards ---------- */
.grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px; }
.card {
  grid-column: span 4;
  display: flex; flex-direction: column; gap: 14px;
  padding: 24px; min-height: 240px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  text-align: left; color: inherit; font: inherit; cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
  position: relative;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--border-strong); }
.card.featured { grid-column: span 8; }
.card-top { display: flex; justify-content: space-between; align-items: center; color: var(--muted); }
.card-top .status { display: inline-flex; align-items: center; gap: 6px; }
.status::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--muted); }
.status.live::before { background: #2fbf71; }
.status.wip::before { background: #f2b61f; }
.status.archived::before { background: var(--border-strong); }
.card h3 { font-size: 1.3rem; letter-spacing: -0.02em; }
.card.featured h3 { font-size: clamp(1.5rem, 2.6vw, 2rem); }
.card p { color: var(--muted); font-size: 0.95rem; max-width: 48ch; }
.card .tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; }
.tag { font-family: var(--mono); font-size: 0.7rem; color: var(--muted); padding: 3px 8px; border-radius: 6px; background: var(--surface-2); }
.card .open { position: absolute; right: 22px; bottom: 22px; color: var(--accent); font-weight: 500; font-size: 0.9rem; opacity: 0; transform: translateX(-4px); transition: all .18s; }
.card:hover .open, .card:focus-visible .open { opacity: 1; transform: none; }
.card .draft-badge {
  position: absolute; top: -9px; right: 16px;
  font-family: var(--mono); font-size: 0.65rem; letter-spacing: .06em; text-transform: uppercase;
  background: var(--accent-soft); color: var(--accent); padding: 2px 8px; border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
}
.empty { color: var(--muted); padding: 40px 0; text-align: center; }
@media (max-width: 900px) {
  .card, .card.featured { grid-column: span 6; }
}
@media (max-width: 600px) {
  .card, .card.featured { grid-column: span 12; }
}

/* ---------- process ---------- */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.steps li { padding: 24px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); display: flex; flex-direction: column; gap: 10px; }
.step-num { color: var(--accent); }
.steps h3 { font-size: 1.05rem; }
.steps p { color: var(--muted); font-size: 0.93rem; }
@media (max-width: 900px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .steps { grid-template-columns: 1fr; } }

/* ---------- about ---------- */
.about-body { max-width: 62ch; display: flex; flex-direction: column; gap: 16px; font-size: 1.05rem; }
.about-body a { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--border-strong); }
.about-body a:hover { text-decoration-color: var(--accent); }
.contact { color: var(--muted); }

/* ---------- footer ---------- */
.site-footer {
  max-width: var(--max); margin: 0 auto; padding: 32px var(--gutter) 48px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  color: var(--muted); border-top: 1px solid var(--border);
}

/* ---------- dialog ---------- */
.project-dialog {
  width: min(960px, calc(100vw - 32px));
  max-height: calc(100vh - 48px);
  padding: 0; border: 1px solid var(--border); border-radius: 18px;
  background: var(--surface); color: var(--text);
  box-shadow: 0 30px 80px -20px rgba(0,0,0,.45);
}
.project-dialog::backdrop { background: rgba(0,0,0,.45); backdrop-filter: blur(4px); }
.dialog-close-form { position: absolute; top: 14px; right: 14px; margin: 0; z-index: 2; }
.dialog-body { padding: clamp(24px, 4vw, 44px); display: grid; grid-template-columns: 1fr 1.4fr; gap: 40px; }
.dlg-side { display: flex; flex-direction: column; gap: 18px; }
.dlg-side .meta-row { display: flex; align-items: center; gap: 10px; color: var(--muted); }
.dlg-side h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); letter-spacing: -0.03em; }
.dlg-side .summary { color: var(--muted); font-size: 1.02rem; }
.dlg-meta { display: grid; grid-template-columns: auto 1fr; gap: 8px 16px; font-size: 0.9rem; margin: 0; }
.dlg-meta dt { color: var(--muted); font-family: var(--mono); font-size: 0.74rem; padding-top: 3px; }
.dlg-meta dd { margin: 0; }
.dlg-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4px; }
.dlg-main { display: flex; flex-direction: column; gap: 22px; }
.block h4 { margin: 0 0 8px; font-family: var(--mono); font-size: 0.74rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); font-weight: 500; }
.block p { font-size: 0.98rem; }
.block.ask blockquote {
  margin: 0; padding: 16px 18px; border-radius: 12px;
  background: var(--surface-2); border-left: 3px solid var(--accent);
  font-size: 1rem; line-height: 1.55;
}
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.split .block { padding: 16px; border: 1px solid var(--border); border-radius: 12px; }
.split .block.claude { border-color: color-mix(in srgb, var(--accent) 40%, var(--border)); background: var(--accent-soft); }
.split .block ul { margin: 0; padding-left: 18px; font-size: 0.93rem; display: flex; flex-direction: column; gap: 4px; }
.block.outcome p { font-size: 1.02rem; }
@media (max-width: 760px) {
  .dialog-body { grid-template-columns: 1fr; gap: 28px; }
  .split { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .card, .btn, .card .open { transition: none; }
}