:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-muted: #f3f4f6;
  --text: #111827;
  --text-muted: #4b5563;
  --border: #d8dde6;
  --accent: #2563eb;
  --success: #166534;
  --warning: #92400e;
  --danger: #b91c1c;
  --radius: 16px;
  --radius-sm: 12px;
  --container: 1200px;
  --page-pad: clamp(1rem, 0.6rem + 1.2vw, 2rem);
  --section-space: clamp(3rem, 2.4rem + 2vw, 6rem);
  --grid-gap: clamp(1rem, 0.8rem + 0.6vw, 1.5rem);
  --title-xl: clamp(2.2rem, 1.6rem + 3vw, 4.4rem);
  --title-lg: clamp(1.5rem, 1.2rem + 1vw, 2.2rem);
  --title-md: clamp(1.15rem, 1rem + 0.4vw, 1.4rem);
  --body-sm: 0.875rem;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
}

* { box-sizing: border-box; }
html { font-size: 16px; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    linear-gradient(to right, rgba(17, 24, 39, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(17, 24, 39, 0.035) 1px, transparent 1px);
  background-size: 24px 24px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

body[data-nav-open='true'] { overflow: hidden; }
body[data-sidebar-open='true'] { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }

.site-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-main { flex: 1; }

.container {
  width: min(100% - (var(--page-pad) * 2), var(--container));
  margin: 0 auto;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.nav-inner,
.nav-links,
.nav-actions,
.inline-actions,
.cluster,
.toolbar,
.footer-bottom,
.data-card-head,
.stack-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav-inner,
.toolbar,
.footer-bottom,
.data-card-head {
  justify-content: space-between;
}

.nav-inner { padding: var(--space-4) 0; }

.nav-links,
.nav-actions,
.inline-actions,
.cluster,
.stack-row {
  flex-wrap: wrap;
}

.brand,
.nav-links a,
.nav-actions a,
.sidebar a,
.sidebar button,
.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.brand {
  font-weight: 700;
}

.brand-mark,
.feature-icon,
.empty-icon {
  display: inline-grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border: 1px solid var(--text);
  background: var(--surface);
}

.feature-icon,
.empty-icon {
  width: 2.5rem;
  height: 2.5rem;
  border-color: var(--border);
  border-radius: 999px;
  background: var(--surface-muted);
}

.public-nav {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  flex: 1;
  justify-content: flex-end;
}

.public-nav .toolbar {
  display: none;
}

.button,
.button-secondary,
.button-ghost,
.button-danger,
.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 2.8rem;
  padding: 0.7rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

.button,
.button-secondary,
.button-ghost,
.button-danger {
  white-space: nowrap;
}

.button { background: var(--accent); border-color: var(--accent); color: #fff; }
.button-danger { color: var(--danger); border-color: #efc4c4; background: #fff6f6; }
.button-ghost { background: transparent; }
.icon-button { width: 2.8rem; padding: 0; }
[data-public-nav-open] { display: none; }

.button:focus-visible,
.button-secondary:focus-visible,
.button-ghost:focus-visible,
.button-danger:focus-visible,
.icon-button:focus-visible,
.field input:focus-visible,
.field select:focus-visible,
.field textarea:focus-visible,
.search-input:focus-visible,
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.hero,
.auth-layout,
.dashboard-shell,
.stats-grid,
.feature-grid,
.dashboard-grid,
.form-grid,
.cards-grid,
.meta-grid,
.footer-grid,
.summary-grid,
.hero-feature-list,
.stat-grid {
  display: grid;
  gap: var(--grid-gap);
}

.hero { grid-template-columns: minmax(0, 1.08fr) minmax(18rem, 0.92fr); padding: var(--section-space) 0; align-items: center; }
.auth-layout { grid-template-columns: 1fr 1fr; align-items: center; }
.dashboard-shell { grid-template-columns: 17rem minmax(0, 1fr); gap: clamp(1rem, 0.5rem + 1.4vw, 2rem); padding: clamp(1.25rem, 1rem + 1vw, 2rem) 0 var(--section-space); }

.eyebrow,
.badge,
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 999px;
  font-size: 0.875rem;
}

.hero h1,
.page-title h1,
.section-title,
.footer-title,
.empty-state h3,
.footer-brand h3 { margin: 0; line-height: 1.05; letter-spacing: -0.03em; }

.hero h1 { font-size: var(--title-xl); max-width: 13ch; }
.page-title h1 { font-size: var(--title-lg); }
.section-title { font-size: var(--title-md); }
.page-title p,
.muted,
.section-copy,
.small-label,
.field label,
.meta-grid dt,
.table th,
.footer-brand p,
.footer-copy,
.empty-state p,
.footer-links a { color: var(--text-muted); }

.card,
.hero-panel,
.auth-card,
.metric,
.table-wrap,
.data-card,
.sidebar,
.notice,
.hero-feature {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.card,
.hero-panel,
.auth-card,
.data-card,
.notice,
.hero-feature { padding: var(--space-5); }
.metric { padding: var(--space-4); }
.section { padding: var(--section-space) 0; }
.feature-grid,
.stats-grid,
.summary-grid,
.cards-grid,
.stat-grid { grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); }
.feature-grid,
.stats-grid { grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); }
.footer-grid { grid-template-columns: 1.2fr 1fr 1fr 1fr; }
.dashboard-grid { grid-template-columns: repeat(12, minmax(0, 1fr)); }
.span-12 { grid-column: span 12; }
.span-8 { grid-column: span 8; }
.span-6 { grid-column: span 6; }
.span-4 { grid-column: span 4; }
.span-3 { grid-column: span 3; }

.feature-item,
.hero-copy,
.hero-aside,
.panel-head,
.section-stack { display: grid; gap: var(--space-3); }

.dashboard-grid > .card,
.dashboard-grid > .metric {
  min-width: 0;
}

.feature-icon i,
.empty-icon i,
.section-title i,
.footer-title i,
.page-title i,
.hero-feature i,
.badge i,
.eyebrow i,
.small-label i { color: var(--accent); }

.field { display: grid; gap: var(--space-2); }
.field label {
  font-size: var(--body-sm);
}
.field input,
.field select,
.field textarea,
.search-input {
  width: 100%;
  min-height: 2.9rem;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
}

.field textarea { min-height: 7rem; resize: vertical; }

.toolbar > :first-child,
.panel-head > :first-child {
  min-width: 0;
}

.cluster > .input-with-icon,
.cluster > .search-input,
.cluster > select {
  flex: 1 1 14rem;
  min-width: min(100%, 14rem);
}

.input-with-icon { position: relative; }
.input-with-icon i {
  position: absolute;
  left: 0.95rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}
.input-with-icon .search-input,
.input-with-icon input,
.input-with-icon select { padding-left: 2.6rem; }

.sidebar {
  position: sticky;
  top: 5.5rem;
  align-self: start;
  padding: var(--space-4);
  min-width: 0;
}

.sidebar nav { display: grid; gap: var(--space-2); margin-top: var(--space-4); }
.sidebar a,
.sidebar button {
  padding: 0.8rem 0.9rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  border: 0;
  background: transparent;
  text-align: left;
}
.sidebar a.active,
.sidebar a:hover { background: var(--surface-muted); color: var(--text); }
.sidebar-profile { margin-top: 1rem; padding: 1rem; }
.sidebar-overlay { display: none; }

.metric .value { font-size: 1.8rem; font-weight: 700; }

.table-wrap { overflow: auto; }
.table { width: 100%; border-collapse: collapse; min-width: 52rem; }
.table th,
.table td { padding: 0.9rem 1rem; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
.table tbody tr:last-child td { border-bottom: 0; }

.status-pill { text-transform: capitalize; }
.status-pill.paid,
.status-pill.webhook_paid,
.status-pill.manual,
.status-pill.admin { border-color: #c6e6cf; color: var(--success); background: #f0fdf4; }
.status-pill.pending,
.status-pill.created,
.status-pill.authorized { border-color: #f3d2a7; color: var(--warning); background: #fff7ed; }
.status-pill.failed,
.status-pill.cancelled,
.status-pill.webhook_failed { border-color: #f1b7b7; color: var(--danger); background: #fff5f5; }

.meta-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); margin: 0 0 var(--space-4); }
.meta-grid dt { font-size: 0.875rem; margin-bottom: var(--space-1); }
.meta-grid dd { margin: 0; }

.data-card {
  min-height: 100%;
}

.data-card.compact,
.metric,
.sidebar-profile {
  border-radius: var(--radius-sm);
}

.cards-only { display: none; }

.message {
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-muted);
}
.message.success { color: var(--success); border-color: #c6e6cf; background: #f0fdf4; }
.message.error { color: var(--danger); border-color: #efc4c4; background: #fff5f5; }

.empty-state {
  display: grid;
  justify-items: start;
  gap: var(--space-3);
  padding: var(--space-5);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-muted);
}

.empty-state h3 {
  font-size: 1rem;
}

[hidden] {
  display: none !important;
}

.footer {
  margin-top: auto;
  padding: var(--space-6) 0;
  border-top: 1px solid var(--border);
}

.footer-links,
.footer-meta { display: grid; gap: var(--space-3); }

.footer-bottom {
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

@media (max-width: 1024px) {
  .hero,
  .auth-layout,
  .dashboard-shell,
  .feature-grid,
  .stats-grid,
  .summary-grid,
  .cards-grid,
  .footer-grid { grid-template-columns: 1fr; }

  .hero h1 {
    max-width: none;
  }

  .span-8,
  .span-6,
  .span-4,
  .span-3 { grid-column: span 12; }

  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(18rem, calc(100vw - 3rem));
    height: 100vh;
    border-radius: 0;
    transform: translateX(-105%);
    transition: transform 0.2s ease;
    z-index: 30;
  }

  .sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(17, 24, 39, 0.28);
    display: block;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    z-index: 25;
  }

  body[data-sidebar-open='true'] .sidebar { transform: translateX(0); }
  body[data-sidebar-open='true'] .sidebar-overlay { opacity: 1; pointer-events: auto; }
}

@media (max-width: 760px) {
  .toolbar,
  .data-card-head {
    align-items: flex-start;
  }
  .table-wrap.desktop-only { display: none; }
  .cards-only { display: grid; }
  .meta-grid { grid-template-columns: 1fr; }
  .footer-bottom {
    display: grid;
    justify-content: start;
  }

  .public-nav {
    position: fixed;
    inset: 0 0 auto 0;
    top: 0;
    min-height: 100vh;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 1rem;
    display: grid;
    align-content: start;
    gap: var(--space-4);
    transform: translateX(100%);
    transition: transform 0.2s ease;
    z-index: 30;
  }

  .public-nav .nav-links,
  .public-nav .nav-actions {
    display: grid;
    justify-items: stretch;
  }

  .public-nav .button,
  .public-nav .button-ghost,
  .public-nav .button-secondary,
  .public-nav .button-danger {
    width: 100%;
  }

  .public-nav .toolbar,
  [data-public-nav-open] {
    display: flex;
  }

  body[data-nav-open='true'] .public-nav { transform: translateX(0); }
}