:root {
  --bg: #0a0c11;
  --panel: #121620;
  --panel-2: #171c29;
  --border: #242c3d;
  --text: #e7ebf3;
  --muted: #8b95a7;
  --accent: #6ee7b7;
  --accent-2: #7c9cff;
  --danger: #ff7b8a;
  --radius: 14px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: radial-gradient(1200px 600px at 80% -10%, #16203a 0%, var(--bg) 55%);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
}

.hidden { display: none !important; }
.muted { color: var(--muted); }
.num { text-align: right; font-variant-numeric: tabular-nums; }

.brand {
  font-weight: 800;
  letter-spacing: 0.14em;
  font-size: 22px;
}
.brand span { color: var(--accent); }
.brand.small { font-size: 15px; }

.login {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}
.login-card {
  width: min(420px, 100%);
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 34px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
}
.login-card .muted { margin: 8px 0 24px; }
.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-size: 12px;
  margin: 22px 0 16px;
}
.divider::before, .divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

label {
  display: block;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 12px;
}
input, select, textarea {
  width: 100%;
  margin-top: 6px;
  padding: 11px 12px;
  background: #0d111a;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-size: 14px;
  outline: none;
}
textarea {
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.5;
  resize: vertical;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent-2); }
select.compact {
  width: auto;
  margin-top: 0;
  padding: 7px 9px;
  font-size: 12px;
}
.row-actions { margin-top: 8px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 16px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.08s ease, border-color 0.15s ease, background 0.15s ease;
}
.btn:hover { border-color: var(--accent-2); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn.primary {
  background: linear-gradient(180deg, #7ff0c2, #45cf9a);
  border-color: transparent;
  color: #05251a;
}
.btn.ghost { background: transparent; }
.btn.small { padding: 7px 11px; font-size: 12px; }
.btn.full { width: 100%; margin-top: 6px; }
.btn.danger { color: var(--danger); border-color: rgba(255, 123, 138, 0.35); }

.app { min-height: 100vh; }
.topbar {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 14px 26px;
  border-bottom: 1px solid var(--border);
  background: rgba(10, 12, 17, 0.85);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 10;
  flex-wrap: wrap;
}
#tabs { display: flex; gap: 4px; flex-wrap: wrap; }
#tabs button {
  background: transparent;
  border: 1px solid transparent;
  color: var(--muted);
  padding: 8px 12px;
  border-radius: 9px;
  cursor: pointer;
  font-size: 13px;
}
#tabs button:hover { color: var(--text); }
#tabs button.active {
  color: var(--text);
  background: var(--panel-2);
  border-color: var(--border);
}
.userbox {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
}
.pill {
  font-family: var(--mono);
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(110, 231, 183, 0.1);
  border: 1px solid rgba(110, 231, 183, 0.3);
  color: var(--accent);
}
.lang-toggle { min-width: 52px; }

main { max-width: 1160px; margin: 0 auto; padding: 26px 20px 60px; }
.tab { display: none; }
.tab.active { display: block; }

.grid { display: grid; gap: 18px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.two.tight { gap: 10px; }

.card {
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 18px;
  overflow: hidden;
}
.card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.card-head h2 { margin: 0; font-size: 15px; letter-spacing: 0.02em; }

.balance-card .label, .label { color: var(--muted); font-size: 12px; }
.balance {
  font-family: var(--mono);
  font-size: 42px;
  font-weight: 700;
  margin: 10px 0 4px;
  color: var(--accent);
}
.balance small { font-size: 16px; color: var(--muted); }
.actions { display: flex; gap: 10px; margin-top: 20px; }

.stat-row {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px dashed var(--border);
}
.stat-row:last-child { border-bottom: 0; }
.stat-row strong { font-family: var(--mono); }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th {
  text-align: left;
  color: var(--muted);
  font-weight: 500;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}
td { padding: 11px 10px; border-bottom: 1px solid rgba(36, 44, 61, 0.6); vertical-align: middle; }
tr:last-child td { border-bottom: 0; }
.empty { color: var(--muted); text-align: center; padding: 24px; }

.inline-form { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 14px; }
.inline-form input { margin-top: 0; }
.secret {
  margin: 12px 0;
  padding: 14px;
  border-radius: 10px;
  border: 1px solid rgba(110, 231, 183, 0.35);
  background: rgba(110, 231, 183, 0.08);
  font-family: var(--mono);
  word-break: break-all;
  font-size: 13px;
}
.preset-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}
.preset-grid button {
  padding: 16px 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #0d111a;
  color: var(--text);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 14px;
}
.preset-grid button:hover { border-color: var(--accent); color: var(--accent); }
.preset-grid button.selected { border-color: var(--accent); background: rgba(110, 231, 183, 0.08); }
.preset-grid button small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 11px;
}

.preview {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px dashed var(--border);
  margin: 4px 0 12px;
}
.result {
  min-height: 280px;
  margin: 0;
  padding: 14px;
  border-radius: 10px;
  background: #0a0e16;
  border: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  color: #c9d4e8;
}

.hint { color: var(--muted); font-size: 12px; margin-top: 12px; }

.endpoint-tag {
  min-width: 76px;
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.notice {
  margin-bottom: 16px;
  padding: 12px 16px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 196, 108, 0.35);
  background: rgba(255, 196, 108, 0.08);
  color: #ffd399;
  font-size: 13px;
}
.notice.danger {
  border-color: rgba(255, 123, 138, 0.4);
  background: rgba(255, 123, 138, 0.1);
  color: #ffb3bd;
}
code { font-family: var(--mono); color: var(--accent-2); }

.dashboard-stats {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}
.dashboard-stats > div {
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #0d111a;
}
.dashboard-stats span { display: block; color: var(--muted); font-size: 11px; }
.dashboard-stats strong { display: block; margin-top: 6px; font-family: var(--mono); font-size: 16px; }

.dash-chart {
  display: flex;
  gap: 4px;
  align-items: flex-end;
  height: 150px;
  margin-top: 18px;
}
.dash-bar {
  flex: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 4px;
  min-width: 6px;
}
.dash-bar span {
  display: block;
  width: 100%;
  min-height: 2px;
  border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, #7ff0c2, #2f9e78);
}
.dash-bar em {
  font-style: normal;
  color: var(--muted);
  font-size: 9px;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
}
.top-models { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.top-model {
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-size: 11px;
}
.top-model strong { color: var(--text); font-family: var(--mono); font-weight: 600; }

.media-current {
  min-height: 110px;
  margin-bottom: 14px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #0a0e16;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
}
.checkbox-row {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-size: 12px;
}
.checkbox-row input { width: auto; margin: 0; }

@media (max-width: 900px) {
  .dashboard-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

.toast {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 50;
  padding: 13px 16px;
  border-radius: 11px;
  background: #1a2233;
  border: 1px solid var(--border);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  font-size: 13px;
  max-width: 360px;
}
.toast.error { border-color: rgba(255, 123, 138, 0.5); color: #ffd0d5; }

@media (max-width: 900px) {
  .grid.two { grid-template-columns: 1fr; }
  .topbar { padding: 12px 16px; }
  .userbox { width: 100%; justify-content: flex-end; }
  .balance { font-size: 34px; }
  .preset-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ------------------------------------------------------------------ */
/* Customer landing page                                               */
/* ------------------------------------------------------------------ */

.landing { min-height: 100vh; }
.landing-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 28px;
  max-width: 1160px;
  margin: 0 auto;
  padding: 18px 20px;
  background: rgba(10, 12, 17, 0.82);
  backdrop-filter: blur(12px);
}
.landing-nav .brand { text-decoration: none; }
.landing-links { display: flex; gap: 22px; margin-left: 10px; }
.landing-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
}
.landing-links a:hover { color: var(--text); }
.landing-actions { margin-left: auto; }

.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
  max-width: 1160px;
  margin: 0 auto;
  padding: 76px 20px 52px;
}
.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.hero h1 {
  margin: 0;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.12;
  letter-spacing: -0.02em;
}
.hero-sub {
  max-width: 540px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
}
.hero-actions { display: flex; gap: 12px; margin-top: 28px; flex-wrap: wrap; }
.hero-meta { margin: 18px 0 0; color: var(--muted); font-size: 12px; }

.hero-code {
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
}
.code-head {
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
  font-size: 12px;
  font-weight: 600;
}
.hero-code pre {
  margin: 0;
  padding: 14px;
  overflow-x: auto;
  border-radius: 12px;
  background: #080b12;
  border: 1px solid var(--border);
  color: #c9d4e8;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.65;
}

.section { max-width: 1160px; margin: 0 auto; padding: 48px 20px; }
.section-head { max-width: 720px; margin-bottom: 24px; }
.section-head h2 { margin: 0 0 10px; font-size: 26px; letter-spacing: -0.01em; }
.section-head p { margin: 0; color: var(--muted); line-height: 1.7; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.feature {
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
}
.feature h3 { margin: 0 0 8px; font-size: 15px; }
.feature p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.7; }

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.steps li {
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
}
.steps li span {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
}
.steps h3 { margin: 12px 0 8px; font-size: 16px; }
.steps p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.7; }

.price-card {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  overflow-x: auto;
}
.price-card table { font-size: 13px; }

.docs-grid, .faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.doc-card, .faq-grid details {
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
}
.doc-card h3 { margin: 0 0 12px; font-size: 15px; }
.doc-card p { color: var(--muted); font-size: 13px; line-height: 1.7; }
.endpoint-list { margin: 0; padding: 0; list-style: none; }
.endpoint-list li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--border);
}
.endpoint-list li:last-child { border-bottom: 0; }
.endpoint-list span { color: var(--muted); font-size: 12px; }
.faq-grid details summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
}
.faq-grid details p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.cta-band {
  max-width: 1160px;
  margin: 20px auto 40px;
  padding: 40px 28px;
  text-align: center;
  border: 1px solid var(--border);
  border-radius: 20px;
  background:
    radial-gradient(500px 160px at 50% 0%, rgba(110, 231, 183, 0.18), transparent 70%),
    linear-gradient(180deg, var(--panel-2), var(--panel));
}
.cta-band h2 { margin: 0 0 8px; font-size: 26px; }
.cta-band p { margin: 0 0 20px; color: var(--muted); }

.landing-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  max-width: 1160px;
  margin: 0 auto;
  padding: 30px 20px 46px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
}
.landing-footer .muted { margin: 6px 0 0; }
.footer-links { display: flex; gap: 18px; flex-wrap: wrap; }
.footer-links a { color: var(--muted); text-decoration: none; }
.footer-links a:hover { color: var(--text); }
.landing-footer > .muted.small { margin-left: auto; }

/* ------------------------------------------------------------------ */
/* Login modal                                                         */
/* ------------------------------------------------------------------ */

.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 20px;
}
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4, 6, 10, 0.68);
  backdrop-filter: blur(6px);
}
.login-modal-card {
  position: relative;
  width: min(400px, calc(100vw - 32px));
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.55);
}
.login-modal-card h2 { margin: 18px 0 6px; font-size: 20px; }
.login-modal-card > .muted { margin: 0 0 20px; font-size: 13px; }
.modal-close {
  position: absolute;
  top: 10px;
  right: 12px;
  width: 30px;
  height: 30px;
  border: 1px solid transparent;
  border-radius: 9px;
  background: transparent;
  color: var(--muted);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
}
.modal-close:hover { color: var(--text); border-color: var(--border); }
.google-login-wrap { margin: 4px 0 6px; }
.google-button { display: flex; justify-content: center; min-height: 40px; }
.google-button iframe { max-width: 100%; }
.btn.google {
  gap: 10px;
  background: #ffffff;
  color: #1f2937;
  border-color: #e5e7eb;
}
.btn.google:hover { border-color: #cbd5e1; }
.google-g {
  display: inline-grid;
  place-items: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #ea4335;
  color: #fff;
  font-size: 12px;
  font-weight: 800;
}
.legal-note { margin: 16px 0 0; color: var(--muted); font-size: 11px; line-height: 1.6; }
.legal-note a { color: var(--accent-2); }

@media (max-width: 900px) {
  .landing-nav { gap: 12px; padding: 14px 16px; }
  .landing-links { display: none; }
  .hero { grid-template-columns: 1fr; gap: 30px; padding: 44px 16px 30px; }
  .hero h1 { font-size: 38px; }
  .section { padding: 34px 16px; }
  .feature-grid, .steps, .docs-grid, .faq-grid { grid-template-columns: 1fr; }
  .feature-grid { gap: 12px; }
  .landing-footer { padding: 24px 16px 40px; }
  .landing-footer > .muted.small { margin-left: 0; }
}

/* ------------------------------------------------------------------ */
/* Legal pages                                                         */
/* ------------------------------------------------------------------ */

.legal-page {
  max-width: 820px;
  margin: 0 auto;
  padding: 56px 22px 80px;
  line-height: 1.8;
}
.legal-page .brand {
  display: inline-block;
  margin-bottom: 28px;
  text-decoration: none;
}
.legal-page h1 { margin: 0 0 4px; font-size: 30px; letter-spacing: -0.01em; }
.legal-page h2 { margin: 30px 0 8px; font-size: 17px; }
.legal-page p, .legal-page li { color: var(--muted); font-size: 14px; }
.legal-page ul { padding-left: 20px; }
.legal-page a { color: var(--accent-2); }
.legal-back { margin-top: 40px; }