/* ============================================================
   ForgeAPI — design system (dark, developer-oriented)
   ============================================================ */

:root {
  --bg: #0a0a0f;
  --bg-elev: #101018;
  --card: #14141f;
  --card-hover: #191927;
  --border: rgba(255, 255, 255, 0.07);
  --border-strong: rgba(255, 255, 255, 0.13);

  --text: #f4f4f6;
  --text-2: #a1a1aa;
  --text-3: #6f6f7a;

  --accent: #8b5cf6;
  --accent-2: #3b82f6;
  --accent-3: #22d3ee;
  --grad: linear-gradient(100deg, #8b5cf6 0%, #3b82f6 55%, #22d3ee 110%);

  --green: #34d399;
  --yellow: #fbbf24;
  --red: #f87171;

  --radius: 10px;
  --radius-sm: 6px;

  --mono: "JetBrains Mono", "SFMono-Regular", ui-monospace, Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15.5px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-3); text-decoration: none; }
a:hover { text-decoration: underline; }

::selection { background: rgba(139, 92, 246, 0.35); }

.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* ---------- Nav ---------- */

.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10, 10, 15, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1120px; margin: 0 auto; padding: 0 24px;
  height: 60px; display: flex; align-items: center; gap: 28px;
}
.logo {
  display: flex; align-items: center; gap: 9px;
  font-weight: 700; font-size: 17px; color: var(--text);
  letter-spacing: -0.02em;
}
.logo:hover { text-decoration: none; }
.logo-mark {
  width: 26px; height: 26px; border-radius: 7px;
  background: var(--grad);
  display: grid; place-items: center;
  font-size: 13px; font-weight: 800; color: #fff;
  box-shadow: 0 0 18px rgba(139, 92, 246, 0.45);
}
.nav-links { display: flex; gap: 22px; margin-left: 8px; }
.nav-links a {
  color: var(--text-2); font-size: 14px; font-weight: 500;
}
.nav-links a:hover { color: var(--text); text-decoration: none; }
.nav-links a.active { color: var(--text); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 18px; border-radius: 8px;
  font-size: 14px; font-weight: 600; font-family: var(--sans);
  border: 1px solid var(--border-strong);
  background: var(--card); color: var(--text);
  cursor: pointer; transition: all 0.15s ease;
  white-space: nowrap;
}
.btn:hover { background: var(--card-hover); text-decoration: none; }
.btn-primary {
  background: var(--grad); border: none; color: #fff;
  box-shadow: 0 2px 16px rgba(99, 102, 241, 0.35);
}
.btn-primary:hover { filter: brightness(1.1); background: var(--grad); }
.btn-sm { padding: 6px 13px; font-size: 13px; border-radius: 7px; }
.btn-lg { padding: 13px 26px; font-size: 15.5px; border-radius: 10px; }
.btn-ghost { background: transparent; }
.btn-ghost:hover { background: rgba(255,255,255,0.06); }
.btn-danger { border-color: rgba(248, 113, 113, 0.4); color: var(--red); }
.btn-danger:hover { background: rgba(248, 113, 113, 0.08); }

/* ---------- Hero ---------- */

.hero {
  position: relative;
  padding: 108px 0 96px;
  text-align: center;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(640px 380px at 50% -40px, rgba(139, 92, 246, 0.22), transparent 70%),
    radial-gradient(520px 320px at 82% 30%, rgba(34, 211, 238, 0.10), transparent 70%),
    radial-gradient(520px 320px at 15% 40%, rgba(59, 130, 246, 0.10), transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(700px 420px at 50% 0%, black, transparent 78%);
  -webkit-mask-image: radial-gradient(700px 420px at 50% 0%, black, transparent 78%);
  pointer-events: none;
}
.hero > * { position: relative; z-index: 1; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: rgba(255,255,255,0.04);
  font-size: 13px; color: var(--text-2); margin-bottom: 26px;
}
.hero-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 10px var(--green); }

.hero h1 {
  font-size: clamp(40px, 6.2vw, 66px);
  font-weight: 800; letter-spacing: -0.035em; line-height: 1.08;
  margin-bottom: 22px;
}
.hero h1 .grad-text {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero p.sub {
  max-width: 640px; margin: 0 auto 34px;
  font-size: 18px; color: var(--text-2);
}
.hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.hero-metrics {
  margin-top: 64px;
  display: flex; justify-content: center; gap: 10px; flex-wrap: wrap;
}
.metric {
  padding: 16px 28px; border-radius: var(--radius);
  border: 1px solid var(--border); background: rgba(20,20,31,0.7);
  backdrop-filter: blur(8px);
}
.metric .num {
  font-family: var(--mono); font-size: 24px; font-weight: 700;
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.metric .lbl { font-size: 12.5px; color: var(--text-3); margin-top: 2px; }

/* ---------- Sections ---------- */

.section { padding: 88px 0; }
.section-alt { background: var(--bg-elev); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.sec-head { max-width: 640px; margin-bottom: 52px; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.sec-eyebrow {
  font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--accent-3); margin-bottom: 12px;
}
.sec-head h2 { font-size: clamp(28px, 3.6vw, 38px); font-weight: 800; letter-spacing: -0.03em; line-height: 1.15; margin-bottom: 14px; }
.sec-head p { color: var(--text-2); font-size: 16px; }

/* ---------- Cards / grids ---------- */

.grid { display: grid; gap: 18px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  transition: border-color 0.15s ease, transform 0.15s ease, background 0.15s ease;
}
.card:hover { border-color: var(--border-strong); background: var(--card-hover); transform: translateY(-2px); }
.card h3 { font-size: 16.5px; font-weight: 700; margin-bottom: 9px; display: flex; align-items: center; gap: 9px; }
.card p { color: var(--text-2); font-size: 14.5px; }

.card-icon {
  width: 36px; height: 36px; border-radius: 9px;
  display: grid; place-items: center; font-size: 17px;
  background: rgba(139, 92, 246, 0.12);
  border: 1px solid rgba(139, 92, 246, 0.25);
  margin-bottom: 16px;
}

/* ---------- Model chips (landing) ---------- */

.model-row {
  display: grid; gap: 14px;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
}
.model-card {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 16px 18px;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  font-family: var(--mono); font-size: 13.5px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.model-card:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.model-card .m-name { font-weight: 600; color: var(--text); }
.model-card .m-price { color: var(--text-2); font-size: 12.5px; }
.model-card .m-price b { color: var(--green); font-weight: 600; }
.model-card .m-tag { font-size: 11px; padding: 3px 8px; border-radius: 999px; background: rgba(34,211,238,0.1); color: var(--accent-3); border: 1px solid rgba(34,211,238,0.25); }

/* ---------- Code blocks ---------- */

.codeblock {
  background: #0d0d15;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: left;
}
.codeblock .cb-head {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono); font-size: 12px; color: var(--text-3);
}
.codeblock .cb-dot { width: 10px; height: 10px; border-radius: 50%; }
.codeblock pre {
  padding: 18px 20px;
  overflow-x: auto;
  font-family: var(--mono); font-size: 13px; line-height: 1.65;
  color: #d7d7e2;
}
.codeblock code .c-k { color: #c4a7ff; }
.codeblock code .c-s { color: #8fd8a8; }
.codeblock code .c-n { color: #f6c177; }
.codeblock code .c-c { color: #5a5a6b; }
.codeblock code .c-f { color: #7dd3fc; }

/* ---------- Tables ---------- */

table.tbl { width: 100%; border-collapse: collapse; font-size: 14px; }
.tbl th {
  text-align: left; padding: 12px 16px;
  color: var(--text-3); font-size: 12px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.07em;
  border-bottom: 1px solid var(--border);
}
.tbl td { padding: 15px 16px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.tbl tr:last-child td { border-bottom: none; }
.tbl tr:hover td { background: rgba(255,255,255,0.02); }
.tbl .mono { font-family: var(--mono); font-size: 13px; }
.tbl .price { font-family: var(--mono); font-size: 13.5px; color: var(--text); }
.tbl .price small { color: var(--text-3); }

/* ---------- Badges ---------- */

.badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 11.5px; font-weight: 600;
  padding: 3px 10px; border-radius: 999px;
  border: 1px solid var(--border-strong);
  color: var(--text-2);
}
.badge.green { color: var(--green); border-color: rgba(52,211,153,0.35); background: rgba(52,211,153,0.07); }
.badge.yellow { color: var(--yellow); border-color: rgba(251,191,36,0.35); background: rgba(251,191,36,0.07); }
.badge.red { color: var(--red); border-color: rgba(248,113,113,0.35); background: rgba(248,113,113,0.07); }
.badge.purple { color: #c4a7ff; border-color: rgba(139,92,246,0.4); background: rgba(139,92,246,0.09); }
.badge .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

/* ---------- CTA band ---------- */

.cta-band {
  text-align: center;
  padding: 76px 24px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background:
    radial-gradient(560px 260px at 50% -20px, rgba(139, 92, 246, 0.18), transparent 70%),
    var(--card);
}
.cta-band h2 { font-size: clamp(26px, 3.4vw, 36px); font-weight: 800; letter-spacing: -0.03em; margin-bottom: 12px; }
.cta-band p { color: var(--text-2); margin-bottom: 28px; }

/* ---------- Footer ---------- */

.footer {
  border-top: 1px solid var(--border);
  padding: 44px 0 36px;
  margin-top: 24px;
}
.footer-inner { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.footer .f-brand { max-width: 280px; }
.footer .f-brand p { color: var(--text-3); font-size: 13px; margin-top: 12px; }
.footer h4 { font-size: 13px; color: var(--text-2); font-weight: 600; margin-bottom: 12px; }
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 8px; }
.footer ul a { color: var(--text-3); font-size: 13.5px; }
.footer ul a:hover { color: var(--text); }
.footer-bottom {
  margin-top: 36px; padding-top: 20px;
  border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
  color: var(--text-3); font-size: 12.5px;
}
.status-pill { display: inline-flex; align-items: center; gap: 7px; }
.status-pill .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 8px var(--green); }

/* ---------- Page header (inner pages) ---------- */

.page-head { padding: 72px 0 40px; }
.page-head h1 { font-size: clamp(30px, 4vw, 42px); font-weight: 800; letter-spacing: -0.03em; margin-bottom: 12px; }
.page-head p { color: var(--text-2); font-size: 16.5px; max-width: 640px; }

/* ---------- Console layout ---------- */

.console {
  display: grid;
  grid-template-columns: 224px 1fr;
  min-height: calc(100vh - 60px);
  border-top: 1px solid var(--border);
}
.console-side {
  border-right: 1px solid var(--border);
  background: var(--bg-elev);
  padding: 22px 14px;
}
.console-side .cuser {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; margin-bottom: 18px;
  border-radius: var(--radius);
  background: var(--card); border: 1px solid var(--border);
}
.cuser .avatar {
  width: 32px; height: 32px; border-radius: 8px;
  background: var(--grad); display: grid; place-items: center;
  font-weight: 700; font-size: 13px; color: #fff;
}
.cuser .uname { font-size: 13px; font-weight: 600; line-height: 1.2; }
.cuser .uemail { font-size: 11px; color: var(--text-3); font-family: var(--mono); }

.cnav { list-style: none; display: flex; flex-direction: column; gap: 2px; }
.cnav button {
  display: flex; align-items: center; gap: 11px; width: 100%;
  padding: 10px 12px; border: none; border-radius: 8px;
  background: transparent; color: var(--text-2);
  font-size: 14px; font-weight: 500; font-family: var(--sans);
  cursor: pointer; text-align: left;
  transition: all 0.13s ease;
}
.cnav button:hover { background: rgba(255,255,255,0.05); color: var(--text); }
.cnav button.active {
  background: rgba(139, 92, 246, 0.13);
  color: var(--text);
  border: 1px solid rgba(139, 92, 246, 0.3);
}
.cnav button .ic { width: 18px; text-align: center; font-size: 15px; }

.console-main { padding: 30px 34px 60px; max-width: 960px; }
.cm-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 26px; flex-wrap: wrap; }
.cm-head h2 { font-size: 22px; font-weight: 700; letter-spacing: -0.02em; }
.cm-head p { color: var(--text-3); font-size: 13.5px; margin-top: 3px; }

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

/* stat cards */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 26px; }
.stat {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 20px;
}
.stat .s-lbl { font-size: 12px; color: var(--text-3); font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; }
.stat .s-val { font-family: var(--mono); font-size: 24px; font-weight: 700; margin-top: 6px; }
.stat .s-sub { font-size: 12px; color: var(--text-3); margin-top: 3px; }
.stat .s-val.green { color: var(--green); }

/* chart card */
.chart-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; margin-bottom: 26px; }
.chart-card .cc-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.chart-card .cc-head h3 { font-size: 15px; font-weight: 600; }
.chart-card .cc-head span { font-size: 12.5px; color: var(--text-3); font-family: var(--mono); }

/* ---------- Forms ---------- */

.input, .select {
  width: 100%;
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  color: var(--text);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 14px; font-family: var(--sans);
  outline: none;
  transition: border-color 0.13s ease;
}
.input:focus { border-color: var(--accent); }
.input::placeholder { color: var(--text-3); }

/* key list rows */
.kv-row {
  display: flex; align-items: center; gap: 14px;
  padding: 15px 18px;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  margin-bottom: 12px;
  flex-wrap: wrap;
}
.kv-row .k-name { font-size: 14px; font-weight: 600; min-width: 140px; }
.kv-row .k-key { font-family: var(--mono); font-size: 12.5px; color: var(--text-2); flex: 1; min-width: 220px; }
.kv-row .k-usage { font-family: var(--mono); font-size: 12.5px; color: var(--text-3); }

/* billing */
.balance-card {
  background: linear-gradient(120deg, rgba(139,92,246,0.16), rgba(59,130,246,0.10));
  border: 1px solid rgba(139,92,246,0.35);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 26px;
}
.balance-card .b-lbl { font-size: 13px; color: var(--text-2); }
.balance-card .b-val { font-family: var(--mono); font-size: 42px; font-weight: 800; margin: 8px 0 16px; letter-spacing: -0.02em; }

.amount-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 18px; }
.amount-btn {
  padding: 14px; border-radius: 9px;
  background: var(--bg-elev); border: 1px solid var(--border-strong);
  color: var(--text); font-family: var(--mono); font-size: 15px; font-weight: 700;
  cursor: pointer; transition: all 0.13s ease;
}
.amount-btn:hover, .amount-btn.selected { border-color: var(--accent); background: rgba(139,92,246,0.12); }

/* ---------- Docs ---------- */

.docs-grid { display: grid; grid-template-columns: 200px 1fr; gap: 40px; align-items: start; }
.docs-toc { position: sticky; top: 84px; list-style: none; }
.docs-toc li { margin-bottom: 6px; }
.docs-toc a {
  display: block; padding: 7px 12px; border-radius: 7px;
  color: var(--text-3); font-size: 13.5px;
  border-left: 2px solid transparent;
}
.docs-toc a:hover { color: var(--text); background: rgba(255,255,255,0.04); text-decoration: none; }
.docs-toc a.active { color: var(--text); border-left-color: var(--accent); background: rgba(139,92,246,0.08); }

.docs-body h2 { font-size: 24px; font-weight: 800; letter-spacing: -0.02em; margin: 44px 0 14px; scroll-margin-top: 84px; }
.docs-body h2:first-child { margin-top: 0; }
.docs-body h3 { font-size: 17px; font-weight: 700; margin: 30px 0 10px; }
.docs-body p { color: var(--text-2); margin-bottom: 14px; }
.docs-body ul { color: var(--text-2); padding-left: 22px; margin-bottom: 16px; }
.docs-body li { margin-bottom: 6px; }
.docs-body .codeblock { margin: 14px 0 22px; }
.docs-body table { margin: 14px 0 22px; }

.api-endpoint {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--mono); font-size: 13px;
  padding: 12px 16px; margin-bottom: 10px;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-sm);
}
.api-endpoint .method {
  font-size: 11px; font-weight: 800; letter-spacing: 0.06em;
  padding: 3px 9px; border-radius: 5px;
  background: rgba(34,211,238,0.12); color: var(--accent-3);
  border: 1px solid rgba(34,211,238,0.3);
}
.api-endpoint .path { color: var(--text-2); }
.api-endpoint .desc { margin-left: auto; color: var(--text-3); font-size: 12px; }

.note {
  border-left: 3px solid var(--accent);
  background: rgba(139,92,246,0.07);
  padding: 13px 16px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 13.5px; color: var(--text-2); margin: 14px 0 22px;
}
.note.green { border-left-color: var(--green); background: rgba(52,211,153,0.06); }

/* ---------- Misc ---------- */

.mono { font-family: var(--mono); }
.muted { color: var(--text-3); }
.spacer { height: 24px; }

.faq-item { padding: 20px 0; border-bottom: 1px solid var(--border); }
.faq-item h4 { font-size: 15.5px; font-weight: 650; margin-bottom: 7px; }
.faq-item p { color: var(--text-2); font-size: 14.5px; }

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .console { grid-template-columns: 1fr; }
  .console-side { border-right: none; border-bottom: 1px solid var(--border); }
  .cnav { flex-direction: row; overflow-x: auto; }
  .docs-grid { grid-template-columns: 1fr; }
  .docs-toc { position: static; display: flex; gap: 6px; overflow-x: auto; }
  .amount-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .hero { padding: 76px 0 64px; }
  .metric { padding: 12px 18px; }
}