@font-face {
  font-family: "Be Vietnam Pro";
  src: url("fonts/BeVietnamPro-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #fbf6ee;
  --surface: #ffffff;
  --cream: #fff8ec;
  --soft: #fbf0ec;
  --ink: #1f2430;
  --muted: #6b7280;
  --accent: #d42a22;
  --accent-dark: #b3140f;
  --gold: #ffb800;
  --gold-soft: #ffe14d;
  --gold-line: #ffc93c;
  --border: #e8ddd0;
  --success: #15803d;
  --error: #b91c1c;
  --radius: 14px;
  --shadow: 0 24px 70px -30px rgba(90, 45, 25, 0.35);
  --font: "Be Vietnam Pro", system-ui, Arial, sans-serif;
  --mono: "SFMono-Regular", ui-monospace, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(900px 520px at 88% -8%, rgba(255, 225, 77, 0.22), transparent 62%),
    radial-gradient(700px 480px at -6% 18%, rgba(212, 42, 34, 0.09), transparent 60%),
    var(--bg);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background-image:
    linear-gradient(rgba(31, 36, 48, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31, 36, 48, 0.035) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(180deg, black, transparent 72%);
}

a { color: inherit; }

code, pre {
  font-family: var(--mono);
  font-size: 0.88em;
}

code {
  background: rgba(212, 42, 34, 0.07);
  border: 1px solid rgba(212, 42, 34, 0.12);
  border-radius: 5px;
  padding: 0.08em 0.34em;
}

.wrap {
  width: min(1180px, calc(100% - 48px));
  margin-inline: auto;
}

.topline {
  height: 5px;
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent) 62%, var(--gold) 62%, var(--gold) 100%);
}

/* ---------------------------------------------------------------- header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 248, 236, 0.82);
  border-bottom: 1px solid rgba(232, 221, 208, 0.7);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 70px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex: 0 0 auto;
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  box-shadow: 0 8px 18px -8px rgba(179, 20, 15, 0.55);
}

.brand-word {
  font-size: 25px;
  font-weight: 800;
  letter-spacing: -1.1px;
  line-height: 1;
}

.brand-word em {
  font-style: italic;
  color: var(--ink);
}

.brand-word .red { color: var(--accent); }

.nav {
  display: flex;
  gap: 26px;
  margin-left: auto;
  font-size: 14px;
  font-weight: 600;
}

.nav a {
  text-decoration: none;
  color: #4b5563;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}

.nav a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.ghost-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  text-decoration: none;
  font-size: 13px;
  font-weight: 700;
  transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
}

.ghost-btn:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 8px 18px -12px rgba(31, 36, 48, 0.5);
}

.header-live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: 4px;
  padding: 5px 9px;
  border: 1px solid #cfe8d8;
  border-radius: 999px;
  background: #f2fbf5;
  color: #166534;
  font-size: 10.5px;
  font-weight: 800;
  white-space: nowrap;
}

.header-live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.12);
}

.header-live.off {
  border-color: #e5d6c6;
  background: #fbf3e8;
  color: #9b2c20;
}

.header-live.off .header-live-dot {
  background: #c08457;
  box-shadow: 0 0 0 3px rgba(192, 132, 87, 0.12);
}

/* ---------------------------------------------------------------- hero */

.hero {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
  padding-top: 64px;
  padding-bottom: 84px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1.6px;
  text-transform: uppercase;
}

.eyebrow.light { color: var(--gold-soft); }

.spark {
  color: var(--gold);
  font-size: 14px;
  line-height: 1;
}

.hero h1 {
  margin: 18px 0 0;
  font-size: clamp(44px, 5.8vw, 70px);
  line-height: 1.02;
  letter-spacing: -3.4px;
  font-weight: 800;
}

.hero h1 .mark {
  position: relative;
  display: inline-block;
  color: var(--accent);
  font-style: italic;
  padding-right: 0.06em;
}

.hero h1 .mark::after {
  content: "";
  position: absolute;
  left: 0.02em;
  right: -0.04em;
  bottom: 0.01em;
  height: 0.19em;
  background: linear-gradient(90deg, rgba(255, 184, 0, 0.32), rgba(255, 225, 77, 0.72));
  border-radius: 999px;
  z-index: -1;
  transform: rotate(-1deg);
}

.lede {
  max-width: 520px;
  margin: 24px 0 0;
  font-size: 17.5px;
  line-height: 1.65;
  color: #4b5563;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.primary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 24px;
  border-radius: 999px;
  background: linear-gradient(180deg, #e5352b, var(--accent));
  color: #fff;
  text-decoration: none;
  font-weight: 800;
  font-size: 15px;
  box-shadow: 0 16px 26px -16px rgba(212, 42, 34, 0.85);
  transition: transform 0.15s, box-shadow 0.15s;
}

.primary-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 32px -16px rgba(212, 42, 34, 0.9);
}

.text-btn {
  text-decoration: none;
  font-weight: 700;
  font-size: 14px;
  color: var(--ink);
  border-bottom: 1px solid #c9b8a8;
  padding-bottom: 2px;
}

.text-btn:hover { color: var(--accent); border-color: var(--accent); }

.hero-facts {
  display: flex;
  gap: 30px;
  margin: 38px 0 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 12.5px;
}

.hero-facts strong {
  display: block;
  color: var(--ink);
  font-size: 20px;
  line-height: 1.2;
  letter-spacing: -0.4px;
}

/* ---------------------------------------------------------------- playground */

.playground {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 22px;
  box-shadow: var(--shadow);
  overflow: hidden;
  scroll-margin-top: 92px;
}

.pg-head {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 13px 16px;
  background: linear-gradient(180deg, #fffdf8, var(--cream));
  border-bottom: 1px solid var(--border);
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.12);
}

.live-dot.off {
  background: #9ca3af;
  box-shadow: 0 0 0 4px rgba(156, 163, 175, 0.14);
}

.pg-title {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.2px;
}

.pg-mode {
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--soft);
  border: 1px solid #f0d2ca;
  color: #9b2c20;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.vi-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  padding: 5px 9px;
  border: 1px solid #cfe8d8;
  border-radius: 999px;
  background: #f2fbf5;
  color: #166534;
  font: inherit;
  font-size: 10.5px;
  font-weight: 800;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.vi-toggle[aria-pressed="false"] {
  background: #f3f4f6;
  border-color: #d1d5db;
  color: #4b5563;
}

.vi-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.pg-screen {
  margin: 14px 14px 0;
  border: 1px solid #eadbcc;
  border-radius: 14px;
  background:
    linear-gradient(180deg, #fffdfa, #fff9f1);
  overflow: hidden;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.pg-screen:focus-within {
  border-color: rgba(212, 42, 34, 0.55);
  box-shadow: 0 0 0 4px rgba(212, 42, 34, 0.08);
}

#pad {
  display: block;
  width: 100%;
  min-height: 132px;
  max-height: 260px;
  padding: 16px 18px 10px;
  border: 0;
  outline: 0;
  resize: vertical;
  background: transparent;
  color: var(--ink);
  font-family: var(--font);
  font-size: 22px;
  line-height: 1.48;
  letter-spacing: -0.2px;
}

#pad::placeholder { color: #b9aa9b; }

.pg-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 14px;
  border-top: 1px dashed #eadbcc;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 10.5px;
}

#raw-line {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.action-line {
  flex: 0 0 auto;
  color: #9b2c20;
  background: rgba(212, 42, 34, 0.07);
  border-radius: 999px;
  padding: 2px 8px;
}

.action-line.error {
  color: var(--error);
  background: rgba(185, 28, 28, 0.1);
}

.pg-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  padding: 13px 14px 0;
}

.segmented {
  display: inline-flex;
  padding: 3px;
  gap: 2px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #f8f1e8;
}

.segmented button {
  border: 0;
  border-radius: 7px;
  padding: 6px 10px;
  background: transparent;
  color: #6b5b4e;
  font: inherit;
  font-size: 11.5px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s, box-shadow 0.15s;
}

.segmented button:hover { color: var(--accent); }

.segmented button.active {
  background: var(--surface);
  color: var(--accent);
  box-shadow: 0 2px 8px rgba(90, 45, 25, 0.12);
}

.segmented.subtle { background: transparent; }
.segmented.subtle button { font-size: 11px; }
.segmented.subtle button.active { background: var(--soft); box-shadow: none; }

.pg-advanced {
  margin: 11px 14px 0;
  border-top: 1px solid #f0e5d8;
  padding-top: 9px;
}

.pg-advanced summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 11.5px;
  font-weight: 700;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
}

.pg-advanced summary::-webkit-details-marker { display: none; }

.pg-advanced summary::before {
  content: "+";
  display: inline-grid;
  place-items: center;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--soft);
  color: var(--accent);
  font-size: 12px;
  line-height: 1;
}

.pg-advanced[open] summary::before { content: "−"; }

.checks {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5px 12px;
  padding: 10px 0 2px;
}

.checks label {
  display: flex;
  align-items: center;
  gap: 7px;
  color: #55483d;
  font-size: 11.5px;
  cursor: pointer;
}

.checks input {
  width: 14px;
  height: 14px;
  accent-color: var(--accent);
}

.checks code { font-size: 10.5px; }

.field-label {
  display: block;
  padding: 10px 0 4px;
  color: var(--muted);
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: 0.4px;
  text-transform: uppercase;
}

.field-label code { font-size: 10px; }

.macro-text,
.select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: #fffdfa;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 11.5px;
}

.macro-text {
  min-height: 48px;
  padding: 8px 10px;
  resize: vertical;
  line-height: 1.5;
}

.select {
  padding: 7px 9px;
  font-family: var(--font);
}

.charset-row {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 2px 0 6px;
}

.charset-row .select { flex: 1; min-width: 0; }

.charset-actions {
  display: flex;
  align-items: center;
  gap: 9px;
  padding-top: 7px;
  flex-wrap: wrap;
}

.mini-btn {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 11px;
  background: var(--soft);
  color: #9b2c20;
  font: inherit;
  font-size: 11px;
  font-weight: 800;
  cursor: pointer;
}

.mini-btn:hover { border-color: rgba(212, 42, 34, 0.5); }

.charset-out {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 10.5px;
  overflow-wrap: anywhere;
}

.macro-text:focus,
.select:focus {
  outline: 0;
  border-color: rgba(212, 42, 34, 0.55);
  box-shadow: 0 0 0 3px rgba(212, 42, 34, 0.08);
}

.pg-examples {
  display: flex;
  align-items: center;
  gap: 7px;
  flex-wrap: wrap;
  padding: 12px 14px 14px;
}

.pg-examples > span {
  color: var(--muted);
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: 0.6px;
  text-transform: uppercase;
}

.pg-examples button {
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  padding: 4px 9px;
  color: #55483d;
  font: inherit;
  font-size: 10.5px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.pg-examples button:hover {
  border-color: rgba(212, 42, 34, 0.45);
  color: var(--accent);
  background: #fffaf5;
}

.pg-examples .clear-btn { margin-left: auto; color: var(--accent); }

/* ---------------------------------------------------------------- sections */

.section {
  padding-top: 36px;
  padding-bottom: 76px;
  scroll-margin-top: 86px;
}

.section-head {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 48px;
  align-items: end;
  margin-bottom: 34px;
}

.section-head.compact { margin-bottom: 26px; }

.section-head h2 {
  margin: 12px 0 0;
  font-size: clamp(30px, 3.4vw, 44px);
  line-height: 1.1;
  letter-spacing: -1.8px;
  font-weight: 800;
}

.section-head p {
  margin: 0;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.7;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.feature {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px 20px 20px;
  transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s, background 0.18s;
}

.feature:hover {
  transform: translateY(-3px);
  background: var(--surface);
  border-color: #dcc9b5;
  box-shadow: 0 18px 40px -28px rgba(90, 45, 25, 0.45);
}

.f-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--soft), #fff3e2);
  border: 1px solid #f0d9c8;
  color: var(--accent);
}

.f-icon svg {
  width: 21px;
  height: 21px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.feature h3 {
  margin: 16px 0 6px;
  font-size: 16px;
  letter-spacing: -0.3px;
}

.feature p {
  margin: 0;
  color: #5f6673;
  font-size: 13px;
  line-height: 1.62;
}

/* ---------------------------------------------------------------- architecture */

.arch-panel {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
  background:
    radial-gradient(500px 300px at 82% 8%, rgba(255, 184, 0, 0.14), transparent 65%),
    radial-gradient(460px 320px at 8% 96%, rgba(212, 42, 34, 0.25), transparent 65%),
    #1b1416;
  color: #fff8ec;
  border-radius: 26px;
  padding: clamp(30px, 5vw, 58px);
  box-shadow: 0 40px 80px -50px rgba(27, 20, 22, 0.9);
}

.arch-copy h2 {
  margin: 14px 0 0;
  font-size: clamp(32px, 3.8vw, 48px);
  line-height: 1.06;
  letter-spacing: -2px;
}

.arch-copy h2 .gold { color: var(--gold-soft); }

.arch-copy p {
  margin: 20px 0 0;
  color: #d8c9c1;
  font-size: 14.5px;
  line-height: 1.72;
}

.arch-list {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
  color: #e9dbd3;
  font-size: 12.5px;
}

.arch-list li {
  display: flex;
  gap: 9px;
  align-items: baseline;
}

.arch-list li::before {
  content: "✦";
  color: var(--gold);
  font-size: 11px;
}

.arch-list strong { color: #fff; }

.arch-code {
  background: #120d0f;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.8);
}

.code-head {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 11px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
}

.code-head span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #5b4a45;
}

.code-head span:first-child { background: #e5352b; }
.code-head span:nth-child(2) { background: #ffb800; }
.code-head span:nth-child(3) { background: #3f9b5f; }

.code-head em {
  margin-left: auto;
  color: #9b8880;
  font-family: var(--mono);
  font-size: 10px;
  font-style: normal;
}

.arch-code pre {
  margin: 0;
  padding: 20px 20px 16px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.75;
  color: #f4e9e2;
}

.c-muted { color: #8d7a72; }
.c-key { color: #ffd27a; }
.c-str { color: #8ee0a8; }
.c-num { color: #ff9d94; }
.c-bool { color: #9ec5ff; }

.code-foot {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: #bda9a0;
  font-size: 10.5px;
  letter-spacing: 0.3px;
}

.pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 0 4px rgba(74, 222, 128, 0.12);
}

/* ---------------------------------------------------------------- API Python */

.accent { color: var(--accent); }

.api-panel {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 18px;
  align-items: stretch;
  min-width: 0;
}

.api-demo,
.api-side {
  min-width: 0;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 24px 60px -42px rgba(90, 45, 25, 0.5);
}

.api-demo {
  padding: 17px 18px 15px;
}

.api-demo-head {
  display: flex;
  align-items: center;
  gap: 9px;
  padding-bottom: 13px;
  border-bottom: 1px solid #f0e5d8;
  color: #5f4d42;
  font-size: 12px;
}

.api-demo-head strong {
  color: var(--ink);
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: -0.2px;
}

.api-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.12);
}

.api-latency {
  margin-left: auto;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--soft);
  color: #9b2c20;
  font-family: var(--mono);
  font-size: 10px;
}

.api-label {
  display: block;
  padding: 13px 0 5px;
  color: var(--muted);
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.api-raw {
  display: block;
  width: 100%;
  min-height: 86px;
  padding: 12px 13px;
  border: 1px solid #eadbcc;
  border-radius: 11px;
  background: linear-gradient(180deg, #fffdfa, #fff9f1);
  color: var(--ink);
  font-family: var(--font);
  font-size: 18px;
  line-height: 1.45;
  resize: vertical;
}

.api-raw:focus,
.api-select:focus {
  outline: 0;
  border-color: rgba(212, 42, 34, 0.55);
  box-shadow: 0 0 0 3px rgba(212, 42, 34, 0.08);
}

.api-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  padding-top: 9px;
}

.api-select {
  width: auto;
  min-width: 0;
  padding: 7px 9px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: #fffdfa;
  color: var(--ink);
  font-family: var(--font);
  font-size: 11.5px;
}

.api-btn {
  margin-left: auto;
  border: 0;
  border-radius: 999px;
  padding: 9px 15px;
  background: linear-gradient(180deg, #e5352b, var(--accent));
  color: #fff;
  font: inherit;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 12px 22px -14px rgba(212, 42, 34, 0.9);
  transition: transform 0.15s, box-shadow 0.15s, opacity 0.15s;
}

.api-btn:hover { transform: translateY(-1px); }
.api-btn:disabled { opacity: 0.55; cursor: wait; transform: none; }

.api-result {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 10px;
  align-items: baseline;
  margin-top: 12px;
  padding: 12px 13px;
  border: 1px solid #d9ead9;
  border-radius: 12px;
  background: linear-gradient(180deg, #fbfffb, #f2fbf5);
}

.api-result > span:first-child {
  grid-column: 1 / -1;
  color: #166534;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.api-out {
  color: #14532d;
  font-size: 18px;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.api-out.error { color: var(--error); }

.api-meta {
  justify-self: end;
  color: #5b7563;
  font-family: var(--mono);
  font-size: 9.5px;
  white-space: nowrap;
}

.api-hint {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 10.5px;
}

.api-side {
  display: flex;
  flex-direction: column;
  gap: 13px;
  padding: 17px 18px 16px;
  background:
    radial-gradient(380px 220px at 90% 0%, rgba(255, 225, 77, 0.13), transparent 70%),
    rgba(255, 255, 255, 0.66);
}

.api-code {
  min-width: 0;
  border-radius: 13px;
  overflow: hidden;
  background: #120d0f;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 22px 45px -28px rgba(0, 0, 0, 0.75);
}

.api-code pre {
  margin: 0;
  padding: 15px 15px 12px;
  overflow-x: auto;
  color: #f4e9e2;
  font-size: 11.5px;
  line-height: 1.65;
}

.api-response {
  padding: 9px 13px 11px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: #8ee0a8;
  font-family: var(--mono);
  font-size: 10.5px;
  overflow-wrap: anywhere;
}

.api-facts {
  display: grid;
  gap: 7px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: #5f6673;
  font-size: 11.5px;
  line-height: 1.55;
}

.api-facts li {
  display: flex;
  gap: 7px;
  align-items: baseline;
}

.api-facts li::before {
  content: "✦";
  color: var(--gold);
  font-size: 10px;
}

.api-facts strong { color: var(--ink); }

.api-side .text-btn {
  align-self: flex-start;
  margin-top: auto;
}

/* ---------------------------------------------------------------- download */

.download-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.download-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-height: 150px;
  padding: 22px 22px 20px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.78);
  text-decoration: none;
  transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s;
}

.download-card:hover {
  transform: translateY(-3px);
  border-color: #dcc9b5;
  box-shadow: 0 20px 44px -30px rgba(90, 45, 25, 0.5);
}

.download-card.primary {
  background: linear-gradient(160deg, #e5352b, #b3140f);
  border-color: #b3140f;
  color: #fff;
  box-shadow: 0 22px 44px -26px rgba(179, 20, 15, 0.75);
}

.download-card.primary .d-tag { color: #ffe1a8; }
.download-card.primary span { color: #ffe9e2; }

.d-tag {
  color: var(--accent);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.download-card strong {
  margin-top: 3px;
  font-size: 19px;
  letter-spacing: -0.5px;
}

.download-card span:not(.d-tag):not(.d-arrow) {
  color: var(--muted);
  font-size: 12px;
}

.d-arrow {
  position: absolute;
  right: 20px;
  top: 18px;
  font-size: 21px;
  font-weight: 800;
  opacity: 0.75;
}

.muted-card { opacity: 0.85; }
.muted-card .d-tag { color: var(--muted); }

.cli-line {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 18px;
  padding: 13px 16px;
  border: 1px dashed #d9c8b6;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.45);
  color: var(--muted);
  font-size: 12px;
  flex-wrap: wrap;
}

.cli-line code {
  background: #1f2430;
  border: 0;
  color: #ffe7c2;
  padding: 5px 9px;
  border-radius: 7px;
  font-size: 11.5px;
}

/* ---------------------------------------------------------------- footer */

.site-footer {
  border-top: 1px solid var(--border);
  background: rgba(255, 248, 236, 0.72);
}

.footer-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 26px;
  padding-bottom: 30px;
  flex-wrap: wrap;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 12px;
  color: var(--muted);
}

.footer-brand img { border-radius: 8px; }
.footer-brand strong { color: var(--ink); }

.footer-inner p {
  margin: 0;
  color: var(--muted);
  font-size: 11.5px;
}

.footer-stats {
  color: #8a6a52 !important;
  font-family: var(--mono);
  font-size: 10.5px !important;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-left: auto;
  font-size: 12px;
  font-weight: 700;
}

.footer-links a {
  text-decoration: none;
  color: #4b5563;
}

.footer-links a:hover { color: var(--accent); }

.footer-link-btn {
  border: 0;
  background: transparent;
  padding: 0;
  color: #4b5563;
  font: inherit;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}

.footer-link-btn:hover { color: var(--accent); }

/* ---------------------------------------------------------------- feedback dialog */

.feedback-dialog {
  width: min(560px, calc(100% - 32px));
  max-height: calc(100vh - 40px);
  padding: 0;
  border: 1px solid #e3d3c2;
  border-radius: 20px;
  background: #fffaf3;
  color: var(--ink);
  box-shadow: 0 40px 120px -35px rgba(50, 24, 12, 0.55);
}

.feedback-dialog::backdrop {
  background: rgba(31, 36, 48, 0.45);
  backdrop-filter: blur(4px);
}

.feedback-form {
  padding: 24px 24px 20px;
}

.feedback-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.feedback-head h2 {
  margin: 8px 0 0;
  font-size: 26px;
  letter-spacing: -1px;
}

.feedback-close {
  margin-left: auto;
  width: 34px;
  height: 34px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--surface);
  color: #6b5b4e;
  font: inherit;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
}

.feedback-close:hover { color: var(--accent); border-color: var(--accent); }

.feedback-lede {
  margin: 12px 0 4px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.55;
}

.feedback-label {
  display: block;
  padding: 12px 0 5px;
  color: var(--muted);
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.feedback-form .select,
.feedback-message,
.feedback-input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fffdfa;
  color: var(--ink);
  font-family: var(--font);
  font-size: 13.5px;
}

.feedback-form .select { padding: 9px 10px; }

.feedback-message {
  min-height: 110px;
  padding: 10px 12px;
  line-height: 1.55;
  resize: vertical;
}

.feedback-input { padding: 10px 12px; }

.feedback-message:focus,
.feedback-input:focus,
.feedback-form .select:focus {
  outline: 0;
  border-color: rgba(212, 42, 34, 0.55);
  box-shadow: 0 0 0 3px rgba(212, 42, 34, 0.08);
}

.feedback-hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.feedback-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 16px;
  flex-wrap: wrap;
}

.feedback-actions .primary-btn {
  margin-left: auto;
  border: 0;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}

.feedback-actions .primary-btn:disabled { opacity: 0.6; cursor: wait; }

.feedback-status {
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.4;
}

.feedback-status.ok { color: var(--success); }
.feedback-status.error { color: var(--error); }

/* ---------------------------------------------------------------- responsive */

@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; padding-top: 44px; }
  .hero-copy { max-width: 680px; }
  .playground { max-width: 680px; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .arch-panel { grid-template-columns: 1fr; }
  .section-head { grid-template-columns: 1fr; gap: 16px; }
  .download-grid { grid-template-columns: 1fr 1fr; }
  .api-panel { grid-template-columns: 1fr; }
  .header-live { display: none; }
}

@media (max-width: 760px) {
  .wrap { width: min(1180px, calc(100% - 32px)); }
  .nav { display: none; }
  .header-inner { height: 62px; }
  .ghost-btn { margin-left: auto; }
  .hero { gap: 34px; padding-bottom: 56px; }
  .hero h1 { letter-spacing: -2.2px; }
  .hero-facts { gap: 22px; flex-wrap: wrap; }
  .section { padding-bottom: 54px; }
  .feature-grid { grid-template-columns: 1fr; }
  .download-grid { grid-template-columns: 1fr; }
  .checks { grid-template-columns: 1fr; }
  .pg-controls { align-items: flex-start; }
  .arch-panel { padding: 24px 18px; border-radius: 20px; }
  .footer-inner { align-items: flex-start; flex-direction: column; gap: 12px; }
  .footer-links { margin-left: 0; flex-wrap: wrap; }
  .api-controls .api-btn { width: 100%; margin-left: 0; }
  .api-result { grid-template-columns: 1fr; }
  .api-meta { justify-self: start; }
  .feedback-form { padding: 20px 18px 16px; }
}

@media (max-width: 430px) {
  .brand-word { font-size: 22px; }
  .ghost-btn { font-size: 12px; padding: 7px 11px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 14px; }
  .pg-examples .clear-btn { margin-left: 0; }
  .pg-meta { font-size: 9.5px; }
  .api-demo { padding: 14px 13px 13px; }
  .api-select { flex: 1; }
  .footer-links { gap: 12px 16px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}