:root {
  --bg: #0c0e12;
  --surface: #141820;
  --border: #252b36;
  --text: #e8eaef;
  --muted: #8b93a7;
  --accent: #3d8bfd;
  --accent-dim: #2563c4;
  --success: #34d399;
  --danger: #f87171;
  --font: "DM Sans", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --radius: 12px;
  --shadow: 0 24px 48px rgba(0, 0, 0, 0.45);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(61, 139, 253, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(61, 139, 253, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
}

.site-header {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: rgba(12, 14, 18, 0.85);
  backdrop-filter: blur(8px);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.logo-mark {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: linear-gradient(135deg, var(--accent), #9333ea);
  box-shadow: 0 0 16px rgba(61, 139, 253, 0.5);
}

.header-actions {
  display: flex;
  gap: 0.75rem;
}

.container {
  position: relative;
  z-index: 1;
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

.container.container--wide {
  max-width: 1040px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow);
}

.auth-card h1 {
  margin: 0 0 0.5rem;
  font-size: 1.75rem;
  letter-spacing: -0.03em;
}

.lead {
  color: var(--muted);
  margin: 0 0 1.5rem;
  font-size: 0.95rem;
}

.lead strong {
  color: var(--text);
}

.tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.tab {
  flex: 1;
  padding: 0.6rem 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  transition:
    color 0.15s,
    border-color 0.15s,
    background 0.15s;
}

.tab:hover {
  color: var(--text);
  border-color: var(--muted);
}

.tab.active {
  color: var(--text);
  border-color: var(--accent);
  background: rgba(61, 139, 253, 0.08);
}

.form-panel {
  display: none;
  flex-direction: column;
  gap: 1rem;
}

.form-panel.active {
  display: flex;
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: var(--muted);
}

input {
  padding: 0.65rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
}

input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(61, 139, 253, 0.2);
}

.btn {
  padding: 0.65rem 1.1rem;
  border-radius: 8px;
  border: none;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition:
    transform 0.1s,
    background 0.15s;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: linear-gradient(180deg, var(--accent), var(--accent-dim));
  color: #fff;
}

.btn-primary:hover {
  filter: brightness(1.08);
}

.btn-secondary {
  background: var(--border);
  color: var(--text);
}

.btn-secondary:hover {
  background: #323a48;
}

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}

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

.btn-block {
  width: 100%;
}

.btn-small {
  padding: 0.35rem 0.65rem;
  font-size: 0.8rem;
}

.msg {
  min-height: 1.25rem;
  font-size: 0.85rem;
  margin: 0;
}

.msg.error {
  color: var(--danger);
}

.msg.success {
  color: var(--success);
}

.hidden {
  display: none !important;
}

.dash-nav {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.dash-tab {
  padding: 0.5rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  font-family: inherit;
  cursor: pointer;
}

.dash-tab.active {
  color: var(--text);
  border-color: var(--accent);
  background: rgba(61, 139, 253, 0.1);
}

.dash-panel h2 {
  margin-top: 0;
  font-size: 1.25rem;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.row-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

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

.small {
  font-size: 0.85rem;
}

code {
  font-family: var(--mono);
  font-size: 0.85em;
  background: var(--bg);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.apps-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.app-item {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem;
  background: var(--bg);
}

.app-item h4 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}

.app-meta {
  font-size: 0.8rem;
  color: var(--muted);
  font-family: var(--mono);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-top: 1.25rem;
}

.price-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem;
  background: var(--bg);
}

.price-card.featured {
  border-color: rgba(61, 139, 253, 0.45);
}

.price-card.featured.alt {
  border-color: rgba(147, 51, 234, 0.45);
}

.price-card h3 {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
  color: var(--muted);
}

.price {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0 0 0.75rem;
  letter-spacing: -0.03em;
}

.price span {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
}

.save-tag {
  font-size: 0.8rem;
  color: var(--success);
  margin: -0.5rem 0 0.75rem;
}

.price-card ul {
  margin: 0 0 1rem;
  padding-left: 1.1rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
}

.modal-card {
  position: relative;
  max-width: 520px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
}

.key-block {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin: 1rem 0;
}

.key-row label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.key-row pre {
  margin: 0.35rem 0 0;
  padding: 0.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: var(--mono);
  font-size: 0.75rem;
  word-break: break-all;
  white-space: pre-wrap;
}

.auth-card.show-guide .auth-hide-when-guide {
  display: none;
}

.auth-card.show-guide {
  max-width: 100%;
}

.guide-panel {
  max-height: min(78vh, 900px);
  overflow-y: auto;
  padding-right: 0.25rem;
  margin-right: -0.25rem;
}

.guide-panel::-webkit-scrollbar {
  width: 8px;
}

.guide-panel::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

.integration-mount {
  min-height: 120px;
}

.card--doc {
  padding: 0;
  overflow: hidden;
}

.card--doc .integration-mount {
  max-height: min(82vh, 920px);
  overflow-y: auto;
  padding: 1.75rem;
}

.card--doc .integration-mount::-webkit-scrollbar {
  width: 8px;
}

.card--doc .integration-mount::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

/* Integration doc page */
.integration-doc {
  --doc-rail: rgba(61, 139, 253, 0.12);
}

.doc-hero {
  padding: 1.25rem 1.5rem;
  margin: -0.25rem -0.25rem 1.5rem;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--doc-rail), transparent 55%),
    linear-gradient(225deg, rgba(147, 51, 234, 0.08), transparent 50%);
  border: 1px solid var(--border);
}

.doc-kicker {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin: 0 0 0.35rem;
  font-weight: 600;
}

.doc-title {
  margin: 0 0 0.5rem;
  font-size: 1.5rem;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.doc-lead {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  max-width: 52ch;
}

.doc-lead strong {
  color: var(--text);
}

.doc-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  padding: 0.75rem 0 1.25rem;
  margin-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.doc-toc a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  transition: color 0.15s;
}

.doc-toc a:hover {
  color: var(--accent);
}

.doc-section {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border);
}

.doc-section--last {
  border-bottom: none;
  padding-bottom: 0;
}

.doc-section h3 {
  margin: 0 0 0.75rem;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.doc-flow {
  display: flex;
  align-items: stretch;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
}

.doc-flow__col {
  flex: 1 1 160px;
  max-width: 220px;
  padding: 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  text-align: center;
}

.doc-flow__col--accent {
  border-color: rgba(61, 139, 253, 0.35);
  box-shadow: 0 0 0 1px rgba(61, 139, 253, 0.08);
}

.doc-flow__badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.doc-flow__col p {
  margin: 0;
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.45;
}

.doc-flow__arrow {
  display: flex;
  align-items: center;
  color: var(--muted);
  font-size: 1.25rem;
  opacity: 0.6;
}

@media (max-width: 700px) {
  .doc-flow__arrow {
    transform: rotate(90deg);
    margin: 0.25rem 0;
  }
}

.doc-table-wrap {
  overflow-x: auto;
  margin: 0.75rem 0;
  border-radius: 10px;
  border: 1px solid var(--border);
}

.doc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.doc-table th,
.doc-table td {
  padding: 0.65rem 0.85rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.doc-table th {
  background: rgba(0, 0, 0, 0.25);
  color: var(--muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.doc-table tr:last-child td {
  border-bottom: none;
}

.doc-table td:first-child {
  font-family: var(--mono);
  font-size: 0.8rem;
  white-space: nowrap;
}

.doc-pill {
  display: inline-block;
  font-size: 0.7rem;
  padding: 0.1em 0.4em;
  border-radius: 4px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--muted);
}

.doc-pill--amber {
  border-color: rgba(251, 191, 36, 0.35);
  color: #fbbf24;
}

.doc-callout {
  padding: 0.85rem 1rem;
  border-radius: 10px;
  font-size: 0.88rem;
  line-height: 1.5;
  margin-top: 0.75rem;
}

.doc-callout--tip {
  background: rgba(61, 139, 253, 0.08);
  border: 1px solid rgba(61, 139, 253, 0.25);
  color: var(--text);
}

.doc-callout--warn {
  background: rgba(248, 113, 113, 0.08);
  border: 1px solid rgba(248, 113, 113, 0.25);
  color: var(--text);
}

.code-block {
  margin: 0.75rem 0;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0a0c10;
  overflow: hidden;
}

.code-block__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.4rem 0.65rem;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.code-block__pre {
  margin: 0;
  padding: 0.9rem 1rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  line-height: 1.55;
  overflow-x: auto;
  color: #c8d0e0;
}

.doc-list {
  margin: 0.5rem 0 0;
  padding-left: 1.2rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.doc-list li {
  margin-bottom: 0.4rem;
}

.doc-dl {
  margin: 0;
  font-size: 0.88rem;
}

.doc-dl dt {
  font-weight: 600;
  color: var(--text);
  margin-top: 0.75rem;
}

.doc-dl dt:first-child {
  margin-top: 0;
}

.doc-dl dd {
  margin: 0.25rem 0 0;
  color: var(--muted);
  padding-left: 0;
}

.doc-footer-note {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

@media (max-width: 560px) {
  .auth-card h1 {
    font-size: 1.4rem;
  }

  .doc-title {
    font-size: 1.25rem;
  }

  .tabs {
    flex-direction: column;
  }
}