body {
  font-family: system-ui, sans-serif;
  background: #0f172a;
  color: #e2e8f0;
  display: flex;
  justify-content: center;
  padding-top: 4rem;
}

.login-box, .dashboard {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 360px;
  width: 100%;
}

.btn {
  display: block;
  text-align: center;
  padding: 0.6rem 1rem;
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 6px;
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  font-size: 1rem;
}

.btn:hover {
  background: #334155;
}

.error {
  color: #f87171;
}

.notice {
  background: #1e293b;
  border: 1px solid #eab308;
  border-radius: 6px;
  padding: 0.75rem 1rem;
}

.notice code {
  word-break: break-all;
}

.tabs {
  display: flex;
  gap: 0.5rem;
}

.tab-btn {
  padding: 0.4rem 0.8rem;
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 6px;
  color: inherit;
  cursor: pointer;
}

.tab-btn.active {
  background: #334155;
  border-color: #64748b;
}

.tab-panel {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.tab-panel label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.9rem;
}

.tab-panel input {
  padding: 0.4rem;
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: 4px;
  color: inherit;
}

.dashboard {
  max-width: 640px;
}

.workspace-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.workspace-card {
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 8px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.workspace-card h4 {
  margin: 0;
  font-size: 1rem;
}

.workspace-card h4 code {
  word-break: break-all;
  font-weight: normal;
}

.workspace-balance {
  margin: 0;
  font-size: 0.9rem;
  color: #94a3b8;
}

.stats-error {
  margin: 0;
  color: #f87171;
  font-size: 0.9rem;
}

.activity-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
}

.activity-table th, .activity-table td {
  text-align: left;
  padding: 0.3rem 0.4rem;
  border-bottom: 1px solid #334155;
}

.connect-box {
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: 6px;
  padding: 0.6rem 0.8rem;
  font-size: 0.85rem;
}

.connect-box code {
  word-break: break-all;
}

.connect-box-note {
  color: #94a3b8;
  font-size: 0.8rem;
}

/* ---------- Landing page ---------- */

.landing-body {
  display: block;
  padding-top: 0;
}

.toolbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid #334155;
}

.toolbar-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.toolbar-brand {
  font-weight: 700;
  font-size: 1.2rem;
  color: #e2e8f0;
  text-decoration: none;
}

.toolbar-nav {
  display: flex;
  gap: 1.25rem;
  flex: 1;
  justify-content: center;
}

.toolbar-nav a {
  color: #94a3b8;
  text-decoration: none;
  font-size: 0.9rem;
}

.toolbar-nav a:hover {
  color: #e2e8f0;
}

.btn-accent {
  background: linear-gradient(135deg, #6366f1, #22d3ee);
  border: none;
  color: #0f172a;
  font-weight: 600;
}

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

.btn-ghost {
  background: transparent;
  border: 1px solid #334155;
}

.btn-lg {
  padding: 0.85rem 1.6rem;
  font-size: 1.05rem;
}

.landing {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.hero {
  text-align: center;
  padding: 5rem 0 3.5rem;
}

.hero h1 {
  font-size: 2.4rem;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.hero-sub {
  max-width: 640px;
  margin: 0 auto 2rem;
  color: #94a3b8;
  font-size: 1.05rem;
}

.hero-cta {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.landing-section {
  padding: 3.5rem 0;
  border-top: 1px solid #1e293b;
}

.landing-section h2 {
  font-size: 1.7rem;
  margin-bottom: 1.5rem;
}

.section-lede {
  color: #94a3b8;
  max-width: 720px;
  margin-bottom: 1.5rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.card {
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 10px;
  padding: 1.25rem;
}

.card h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
  font-size: 1.05rem;
}

.card p {
  color: #94a3b8;
  font-size: 0.92rem;
  margin: 0;
}

.steps {
  display: grid;
  gap: 0.9rem;
  max-width: 640px;
  padding-left: 1.4rem;
}

.code-block {
  position: relative;
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: 10px;
  overflow: hidden;
}

.code-block pre {
  margin: 0;
  padding: 1.25rem;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.5;
}

.copy-btn {
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  padding: 0.3rem 0.7rem;
  font-size: 0.8rem;
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 6px;
  color: #e2e8f0;
  cursor: pointer;
}

.calculator {
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 10px;
  padding: 1.5rem;
}

.calc-inputs {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.calc-inputs label {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.9rem;
  color: #94a3b8;
  flex: 1;
  min-width: 220px;
}

.calc-inputs input[type="range"] {
  width: 100%;
}

.calc-results {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.calc-result {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.calc-result-label {
  font-size: 0.85rem;
  color: #94a3b8;
}

.calc-result-value {
  font-size: 1.6rem;
  font-weight: 700;
}

.calc-footnote {
  font-size: 0.8rem;
  color: #64748b;
  margin: 0;
}

.badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  margin-bottom: 0.6rem;
}

.badge-real {
  background: rgba(34, 211, 238, 0.15);
  color: #22d3ee;
}

.badge-example {
  background: rgba(148, 163, 184, 0.15);
  color: #94a3b8;
}

.table-wrap {
  overflow-x: auto;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 480px;
}

.comparison-table th, .comparison-table td {
  text-align: left;
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid #334155;
  font-size: 0.9rem;
}

.comparison-table thead th {
  color: #94a3b8;
  font-weight: 600;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.landing-section#faq details {
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 8px;
  padding: 0.9rem 1.1rem;
  margin-bottom: 0.6rem;
}

.landing-section#faq summary {
  cursor: pointer;
  font-weight: 600;
}

.landing-section#faq p {
  margin: 0.7rem 0 0;
  color: #94a3b8;
  font-size: 0.9rem;
}

.docs-links p {
  color: #94a3b8;
}

.landing-footer {
  text-align: center;
  padding: 2rem 0;
  color: #64748b;
  font-size: 0.85rem;
  border-top: 1px solid #1e293b;
}

.login-modal {
  border: 1px solid #334155;
  border-radius: 10px;
  background: #0f172a;
  color: #e2e8f0;
  padding: 1.75rem;
  max-width: 360px;
  width: 90%;
}

.login-modal::backdrop {
  background: rgba(0, 0, 0, 0.6);
}

.login-modal .login-box {
  max-width: none;
}

.modal-close {
  position: absolute;
  top: 0.6rem;
  right: 0.8rem;
  background: none;
  border: none;
  color: #94a3b8;
  font-size: 1.4rem;
  cursor: pointer;
  line-height: 1;
}

@media (max-width: 768px) {
  .toolbar-nav {
    display: none;
  }

  .hero {
    padding: 3rem 0 2.5rem;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .calc-inputs {
    flex-direction: column;
    gap: 1rem;
  }

  .calc-results {
    gap: 1.25rem;
  }

  .landing-section {
    padding: 2.5rem 0;
  }
}