:root {
  --bg: #021019;
  --bg-2: #071d2b;
  --ink: #e6f4ff;
  --muted: #94b8d4;
  --line: rgba(126, 179, 216, 0.22);
  --accent: #00d5ff;
  --accent-2: #53ffab;
  --card: rgba(5, 26, 39, 0.78);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Space Grotesk", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 10% 10%, #08304c 0%, var(--bg) 42%), linear-gradient(160deg, #03111a, #051826 55%, #071f2f);
  min-height: 100vh;
  overflow-x: hidden;
}

h1, h2, h3, h4 { font-family: "Sora", sans-serif; margin: 0 0 10px; letter-spacing: -0.02em; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
.hidden { display: none !important; }
.muted { color: var(--muted); }

.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.22;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 38px 38px;
}

.glass {
  background: var(--card);
  border: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 12;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin: 12px;
  padding: 12px 16px;
  border-radius: 14px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-weight: 700;
  color: #00131a;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}
.brand-text { font-weight: 700; }
.nav { display: flex; gap: 16px; }
.nav a { color: var(--muted); }
.nav a:hover { color: var(--ink); }
.top-actions { display: flex; gap: 10px; }

.btn {
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 10px 16px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: transform .18s ease, opacity .18s ease, border-color .18s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn.solid { color: #00131a; background: linear-gradient(120deg, var(--accent), var(--accent-2)); }
.btn.outline, .btn.ghost { color: var(--ink); background: transparent; border-color: var(--line); }
.btn.lg { padding: 12px 18px; }

.section { width: min(1180px, 94vw); margin: 0 auto 34px; overflow-x: clip; }
.hero { margin-top: 32px; display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: 24px; align-items: start; }
.eyebrow { color: var(--accent-2); font-size: .82rem; letter-spacing: .08em; }
.hero h1 { font-size: clamp(2rem, 5vw, 4rem); max-width: 16ch; }
.lead { color: var(--muted); max-width: 58ch; margin-top: 8px; }
.positioning-note {
  margin: 0 0 10px;
  max-width: 66ch;
  color: #b8d4eb;
  font-size: .96rem;
  line-height: 1.55;
}
.hero-actions { margin-top: 20px; display: flex; gap: 10px; }
.hero-cards { display: grid; gap: 12px; }
.hero-pills {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.hero-pills span {
  font-size: .82rem;
  color: var(--ink);
  border: 1px solid var(--line);
  background: rgba(0, 213, 255, .1);
  border-radius: 999px;
  padding: 6px 10px;
}
.hero-matrix {
  border-radius: 14px;
  padding: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.metric-card {
  flex: 1 1 calc(50% - 12px);
  min-width: 260px;
  padding: 18px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(7, 31, 45, .75);
}
.metric-card p { color: var(--muted); }
.metric-card.glow { box-shadow: 0 0 48px rgba(0, 213, 255, .17); }

.protocol, .pricing, .app { padding: 24px; border-radius: 16px; border: 1px solid var(--line); background: rgba(4, 21, 33, .66); }
.section-head { margin-bottom: 14px; }
.section-head p { color: var(--muted); }
.code-grid { display: grid; gap: 10px; }
.code-grid pre { margin: 0; padding: 14px; border-radius: 10px; background: #021925; border: 1px solid var(--line); overflow: auto; }
.pricing-card { padding: 18px; border-radius: 12px; display: flex; justify-content: space-between; align-items: center; gap: 14px; }
.integration-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.code-card {
  flex: 1 1 100%;
  min-width: 0;
  border-radius: 12px;
  padding: 12px;
}
.code-card pre {
  margin: 0;
  padding: 14px;
  border-radius: 10px;
  background: #021925;
  border: 1px solid var(--line);
  overflow-x: hidden;
  white-space: pre-wrap;
  word-break: break-word;
  max-width: 100%;
}
.endpoint-list {
  flex: 1 1 100%;
  min-width: 0;
  border-radius: 12px;
  padding: 14px;
}
.endpoint-list h3 { margin: 0 0 10px; }
.endpoint-list ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}
.endpoint-list li {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(0, 213, 255, .08);
  padding: 10px;
}
.ops-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.ops-card {
  flex: 1 1 280px;
  min-width: 260px;
  border-radius: 12px;
  padding: 16px;
}
.ops-card p { color: var(--muted); }
.trust-strip {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.trust-strip div {
  flex: 1 1 280px;
  min-width: 250px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(7, 31, 45, .75);
  padding: 12px;
  display: grid;
  gap: 6px;
}
.trust-strip strong { font-size: .95rem; }
.trust-strip span { color: var(--muted); font-size: .88rem; }

.faq-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.faq-item {
  flex: 1 1 300px;
  min-width: 280px;
  border-radius: 12px;
  padding: 14px;
}

.faq-item h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.faq-item p {
  margin: 0;
  color: var(--muted);
}

.apidoc-shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 14px;
  align-items: start;
}

.apidoc-sidebar {
  position: sticky;
  top: 82px;
  border-radius: 14px;
  padding: 14px;
  display: grid;
  gap: 12px;
}

.apidoc-sidebar h3 {
  margin: 0;
  font-size: 1rem;
}

.apidoc-sidebar nav {
  display: grid;
  gap: 6px;
}

.apidoc-sidebar nav a {
  color: var(--muted);
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 7px 8px;
  font-size: .92rem;
}

.apidoc-sidebar nav a:hover,
.apidoc-sidebar nav a.active {
  color: var(--ink);
  border-color: var(--line);
  background: rgba(0, 213, 255, .1);
}

.apidoc-content {
  min-width: 0;
  display: grid;
  gap: 12px;
}

.apidoc-content pre {
  position: relative;
}

.copy-btn {
  position: absolute;
  right: 10px;
  top: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 5px 8px;
  font: inherit;
  font-size: .78rem;
  color: var(--ink);
  background: rgba(3, 22, 33, .92);
  cursor: pointer;
}

.copy-btn:hover {
  background: rgba(0, 213, 255, .14);
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  padding: 16px;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(2, 10, 16, .75);
  backdrop-filter: blur(4px);
}

.modal-card {
  position: relative;
  z-index: 1;
  width: min(1100px, 96vw);
  max-height: 92vh;
  border-radius: 14px;
  padding: 14px;
  display: grid;
  gap: 10px;
}

.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

#demo-frame {
  width: 100%;
  min-height: 68vh;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #021925;
}

.demo-loading {
  position: absolute;
  left: 50%;
  top: 52%;
  transform: translate(-50%, -50%);
  z-index: 2;
  display: grid;
  justify-items: center;
  gap: 10px;
  text-align: center;
  color: var(--muted);
  pointer-events: none;
}

.spinner {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 3px solid rgba(126, 179, 216, .35);
  border-top-color: var(--accent);
  animation: spin 0.9s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: rgba(3, 16, 25, .88);
}

.footer-inner {
  margin-bottom: 0;
  padding: 18px 0 20px;
}

.footer-inner p {
  margin: 0;
  color: var(--muted);
  font-size: .85rem;
  letter-spacing: .02em;
  text-align: center;
}

.app-grid { display: grid; grid-template-columns: 220px 1fr; gap: 16px; }
.app-sidebar { padding: 10px; border-radius: 12px; display: grid; gap: 8px; align-content: start; }
.app-tab {
  display: block;
  width: 100%;
  border: 1px solid transparent;
  border-radius: 10px;
  text-align: left;
  color: var(--muted);
  background: transparent;
  padding: 10px;
  font: inherit;
  cursor: pointer;
}
.app-tab.active { color: var(--ink); border-color: var(--line); background: rgba(0, 213, 255, .08); }

.app-panel { display: grid; gap: 16px; }
.stats-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.stats-row article { padding: 14px; border-radius: 10px; border: 1px solid var(--line); background: rgba(5, 30, 45, .6); }
.stats-row h4 { font-size: .86rem; color: var(--muted); margin-bottom: 6px; }
.stats-row p { font-size: 1.2rem; font-weight: 700; }

.filters-bar {
  padding: 12px;
  border-radius: 12px;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(4, minmax(0, 1fr)) auto;
  align-items: end;
}

.kpi-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.kpi-card {
  padding: 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: radial-gradient(circle at top right, rgba(0, 213, 255, .16), rgba(3, 28, 44, .72) 60%);
}

.kpi-card h4 {
  margin: 0 0 8px;
  font-size: .85rem;
  color: var(--muted);
}

.kpi-card p {
  margin: 0;
  font-size: 1.3rem;
  font-weight: 700;
}

.pulse-cyan { box-shadow: 0 0 32px rgba(0, 213, 255, .18); }
.pulse-green { box-shadow: 0 0 32px rgba(83, 255, 171, .16); }
.pulse-blue { box-shadow: 0 0 32px rgba(88, 166, 255, .16); }
.pulse-magenta { box-shadow: 0 0 32px rgba(155, 93, 229, .16); }

.charts-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.chart-card {
  border-radius: 12px;
  padding: 12px;
  min-height: 320px;
  display: grid;
  grid-template-rows: auto 1fr;
}

.chart-card h3 {
  margin: 0 0 8px;
  font-size: .95rem;
}

.chart-card canvas {
  width: 100% !important;
  height: 250px !important;
}

#chart-models,
#adm-chart-cost {
  aspect-ratio: 1 / 1;
  width: min(100%, 320px) !important;
  height: auto !important;
  margin: 0 auto;
}

.admin-pricing-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.price-input {
  min-width: 150px;
}

.switch {
  position: relative;
  display: inline-block;
  width: 42px;
  height: 24px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.switch-slider {
  position: absolute;
  inset: 0;
  cursor: pointer;
  border-radius: 999px;
  background: rgba(239, 71, 111, .35);
  border: 1px solid rgba(239, 71, 111, .55);
  transition: .2s ease;
}

.switch-slider::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 2px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  transition: .2s ease;
}

.switch input:checked + .switch-slider {
  background: rgba(83, 255, 171, .32);
  border-color: rgba(83, 255, 171, .62);
}

.switch input:checked + .switch-slider::before {
  transform: translateX(18px);
}

.table-wrap { border-radius: 12px; padding: 12px; overflow: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; font-size: .9rem; padding: 10px 8px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; }

.movement-pill {
  display: inline-block;
  padding: 4px 9px;
  border-radius: 999px;
  font-size: .82rem;
  font-weight: 700;
  border: 1px solid var(--line);
}

.mov-credit {
  color: #53ffab;
  border-color: rgba(83, 255, 171, .45);
  background: rgba(83, 255, 171, .12);
}

.mov-debit {
  color: #ff9f9f;
  border-color: rgba(239, 71, 111, .45);
  background: rgba(239, 71, 111, .14);
}

.mov-none {
  color: var(--muted);
  background: rgba(126, 179, 216, .08);
}

.form-grid { display: grid; grid-template-columns: 1fr auto; gap: 10px; padding: 12px; border-radius: 12px; align-items: end; }
label { display: grid; gap: 6px; font-size: .9rem; color: var(--muted); }
input, select {
  font: inherit;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid var(--line);
  color: var(--ink);
  background: #031928;
}
.notice { padding: 12px; border-radius: 10px; border: 1px solid var(--line); background: rgba(0, 213, 255, .1); }

.account-card { border-radius: 12px; padding: 14px; display: flex; align-items: center; gap: 12px; }
.account-card img { width: 52px; height: 52px; border-radius: 50%; object-fit: cover; border: 2px solid var(--line); }

.user-menu-wrap { position: relative; }
.avatar-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: transparent;
  padding: 0;
  cursor: pointer;
  overflow: hidden;
}
.avatar-btn img { width: 100%; height: 100%; object-fit: cover; }
.user-menu {
  position: absolute;
  right: 0;
  top: 48px;
  min-width: 180px;
  padding: 8px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #031b2b;
  display: grid;
  gap: 4px;
}
.user-menu button,
.user-menu a {
  display: block;
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--ink);
  text-align: left;
  padding: 8px;
  border-radius: 8px;
  cursor: pointer;
}
.user-menu button:hover,
.user-menu a:hover { background: rgba(0, 213, 255, .12); }

@media (max-width: 980px) {
  .nav { display: none; }
  .apidoc-shell { grid-template-columns: 1fr; }
  .apidoc-sidebar {
    position: static;
    order: -1;
  }
  .hero { grid-template-columns: 1fr; }
  .metric-card { min-width: 100%; flex-basis: 100%; }
  .code-card, .endpoint-list, .ops-card, .trust-strip div, .faq-item { min-width: 100%; flex-basis: 100%; }
  #demo-frame { min-height: 62vh; }
  .app-grid { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .form-grid { grid-template-columns: 1fr; }
  .pricing-card { flex-direction: column; align-items: flex-start; }
  .filters-bar { grid-template-columns: 1fr 1fr; }
  .kpi-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .charts-grid { grid-template-columns: 1fr; }
  .admin-pricing-head { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 640px) {
  .topbar { flex-wrap: wrap; }
  .top-actions { width: 100%; }
  .top-actions .btn { flex: 1; }
  .stats-row { grid-template-columns: 1fr; }
}