/* ============================================================
   pert — generative gallery
   Palette pulled directly from the pert sketches:
   cream paper, pert green, mouth red, eye black.
   ============================================================ */

:root {
  --paper:     #f4f3eb;  /* sketch background */
  --paper-2:   #efeede;  /* slightly deeper paper */
  --surface:   #faf7ef;  /* card face (warm off-white) */
  --surface-2: #f0eee2;
  --ink:       #1e1e1e;  /* eye black-ish, primary text */
  --ink-soft:  #4d4a40;  /* muted text */
  --ink-faint: #8a8675;  /* faint text */
  --border:    rgba(30, 30, 30, 0.12);
  --border-2:  rgba(30, 30, 30, 0.24);
  --green:     #5c8b29;  /* pert body, primary */
  --green-dk:  #4a7320;
  --green-lt:  #8bb74a;
  --red:       #d93c2d;  /* pert mouth, accent */
  --red-dk:    #c72136;
  --radius:    14px;
  --maxw:      1180px;
  --font: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

/* ---------- layout ---------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 22px;
}

/* ---------- top nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(244, 243, 235, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 22px;
  height: 58px;
  display: flex;
  align-items: center;
  gap: 18px;
}
.logo {
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.logo .mark {
  height: 26px;
  width: auto;
  object-fit: contain;
  display: block;
}
.nav-links {
  margin-left: auto;
  display: flex;
  gap: 4px;
}
.nav-links a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 13.5px;
  font-weight: 600;
  padding: 7px 12px;
  border-radius: 8px;
  transition: color .15s, background .15s;
}
.nav-links a:hover { color: var(--green-dk); background: var(--surface-2); }

/* ---------- hero ---------- */
.hero {
  padding: 88px 0 56px;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(540px 300px at 12% -5%, rgba(92, 139, 41, 0.12), transparent 70%),
    radial-gradient(420px 260px at 92% 0%, rgba(217, 60, 45, 0.08), transparent 72%);
  pointer-events: none;
}
.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--green-dk);
  margin: 0 0 18px;
}
.hero h1 {
  margin: 0 0 20px;
  font-size: clamp(38px, 6vw, 68px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  font-weight: 800;
  color: var(--ink);
}
.hero p {
  margin: 0;
  max-width: 660px;
  font-size: clamp(15px, 1.6vw, 18px);
  color: var(--ink-soft);
}
.hero p + p { margin-top: 14px; }
.hero strong { color: var(--green-dk); font-weight: 700; }
.hero em { font-style: normal; color: var(--red-dk); font-weight: 600; }
.hero .tags {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-soft);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 12px;
  background: var(--surface);
}

/* ---------- filters ---------- */
.filters {
  position: sticky;
  top: 58px;
  z-index: 40;
  background: rgba(244, 243, 235, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.filters-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 12px 22px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.chip {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-soft);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 15px;
  cursor: pointer;
  transition: all .15s;
}
.chip:hover { color: var(--green-dk); border-color: var(--border-2); }
.chip.active {
  color: #faf7ef;
  background: var(--green);
  border-color: var(--green);
}

/* ---------- category section ---------- */
.section { padding: 64px 0 8px; scroll-margin-top: 124px; }
#about { scroll-margin-top: 58px; }
.section-head { margin-bottom: 30px; }
.section-head .kicker {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--green-dk);
  margin: 0 0 8px;
}
.section-head h2 {
  margin: 0 0 8px;
  font-size: clamp(24px, 3.4vw, 32px);
  letter-spacing: -0.025em;
  font-weight: 700;
  color: var(--ink);
}
.section-head p {
  margin: 0;
  max-width: 600px;
  color: var(--ink-soft);
  font-size: 15px;
}

/* ---------- grid ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.grid .card.featured { grid-column: span 3; }

@media (max-width: 900px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
  .grid .card.featured { grid-column: span 2; }
}
@media (max-width: 600px) {
  .grid { grid-template-columns: 1fr; }
  .grid .card.featured { grid-column: span 1; }
}

/* ---------- card ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color .18s, transform .18s, box-shadow .18s;
}
.card:hover {
  border-color: var(--green-lt);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px -16px rgba(30, 30, 30, 0.35);
}

.frame {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  background:
    repeating-conic-gradient(#f0eee2 0% 25%, #f7f5ec 0% 50%) 50% / 22px 22px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.card.featured .frame { aspect-ratio: 32 / 11; }

.frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
.frame .placeholder {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-faint);
  display: flex;
  align-items: center;
  gap: 8px;
}
.frame .placeholder .spin {
  width: 12px; height: 12px;
  border: 2px solid rgba(30,30,30,0.18);
  border-top-color: var(--green);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.meta {
  padding: 16px 17px 17px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  border-top: 1px solid var(--border);
}
.meta .title-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}
.meta h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.meta .ref {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--red-dk);
  white-space: nowrap;
}
.meta .desc {
  margin: 2px 0 0;
  font-size: 13.5px;
  color: var(--ink-soft);
}
.meta .actions {
  margin-top: 13px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.btn {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-soft);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 11px;
  cursor: pointer;
  transition: all .15s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.btn:hover { color: var(--ink); border-color: var(--border-2); }
.btn.green:hover { color: #faf7ef; background: var(--green); border-color: var(--green); }

/* ---------- source modal ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(30, 28, 22, 0.45);
  backdrop-filter: blur(4px);
}
.modal.open { display: flex; }
.modal-box {
  width: 100%;
  max-width: 860px;
  max-height: 84vh;
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 30px 80px -30px rgba(30,30,30,0.5);
}
.modal-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}
.modal-top .mt-title {
  font-weight: 700;
  font-size: 15px;
  color: var(--ink);
}
.modal-top .mt-title span {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--red-dk);
  margin-left: 8px;
}
.modal-close {
  background: none;
  border: 1px solid var(--border);
  color: var(--ink-soft);
  width: 30px; height: 30px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
}
.modal-close:hover { color: var(--ink); border-color: var(--border-2); }
.modal-code {
  margin: 0;
  padding: 18px;
  overflow: auto;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: #2c2a22;
  background: var(--paper-2);
  white-space: pre;
  tab-size: 2;
}

/* ---------- footer ---------- */
.footer {
  margin-top: 80px;
  padding: 40px 0 60px;
  border-top: 1px solid var(--border);
  color: var(--ink-faint);
  font-size: 13px;
  font-family: var(--mono);
}
.footer a { color: var(--ink-soft); text-decoration: none; }
.footer a:hover { color: var(--green-dk); }

.hidden { display: none !important; }