@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap");

:root {
  color-scheme: dark;
  --bg: #0f172a;
  --bg-elevated: #111827;
  --bg-soft: #0b1220;
  --text: #f8fafc;
  --muted: #94a3b8;
  --accent: #3b82f6;
  --accent-soft: rgba(59, 130, 246, 0.15);
  --border: rgba(148, 163, 184, 0.18);
  --border-strong: rgba(59, 130, 246, 0.46);
  --shadow: 0 20px 40px rgba(2, 6, 23, 0.45);
  --shadow-soft: 0 14px 26px rgba(2, 6, 23, 0.28);
  --header-bg: rgba(15, 23, 42, 0.86);
  --surface-hover: rgba(148, 163, 184, 0.16);
  --menu-hover: rgba(37, 99, 235, 0.08);
  --btn-primary-bg: #3b82f6;
  --btn-primary-bg-hover: #2563eb;
  --btn-primary-text: #ffffff;
  --btn-primary-shadow: 0 16px 32px rgba(59, 130, 246, 0.35);
  --btn-outline-bg: rgba(15, 23, 42, 0.6);
  --btn-outline-border: var(--border);
  --btn-outline-hover-bg: rgba(59, 130, 246, 0.08);
  --btn-outline-hover-border: rgba(59, 130, 246, 0.6);
  --hero-bg: linear-gradient(180deg, rgba(15, 23, 42, 0.95) 0%, rgba(11, 18, 32, 0.9) 100%);
  --hero-card-bg: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(15, 23, 42, 0.8));
  --hero-card-border: rgba(59, 130, 246, 0.35);
  --hero-card-shadow: var(--shadow);
  --badge-bg: rgba(59, 130, 246, 0.2);
  --badge-text: #3b82f6;
  --focus-ring: #3b82f6;
  --placeholder: rgba(148, 163, 184, 0.7);
  --info-bg: rgba(37, 99, 235, 0.08);
  --info-border: rgba(37, 99, 235, 0.2);
  --modal-backdrop: rgba(2, 6, 23, 0.7);
  --footer-icon-bg: rgba(15, 23, 42, 0.4);
  --danger-border: rgba(248, 113, 113, 0.5);
  --danger-text: #fca5a5;
  --danger-bg: rgba(248, 113, 113, 0.12);
  --success-border: rgba(34, 197, 94, 0.4);
  --success-text: #86efac;
  --success-bg: rgba(34, 197, 94, 0.12);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --transition: 180ms ease;
  --max-width: 1120px;
}

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

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

[hidden] {
  display: none !important;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

main {
  display: block;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.section-title {
  font-size: clamp(24px, 2.6vw, 36px);
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  color: var(--muted);
  margin: 0 0 32px;
  max-width: 720px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--header-bg);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  padding: 0;
}

.logo {
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.02em;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}

.logo-lockup {
  display: block;
  height: 44px;
  width: auto;
  max-width: 168px;
  object-fit: contain;
  object-position: left center;
}

.logo-icon {
  display: block;
  width: auto;
  height: 44px;
  max-width: none;
  object-fit: contain;
  object-position: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--muted);
  font-size: 14px;
}

.nav-link {
  border: none;
  background: transparent;
  color: inherit;
  font: inherit;
  padding: 6px 8px;
  cursor: pointer;
  border-radius: 999px;
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}

.nav-links a,
.nav-links button {
  transition: color var(--transition), background var(--transition);
}

.nav-links a:hover,
.nav-links a:focus,
.nav-links button:hover,
.nav-links button:focus {
  color: var(--text);
  background: var(--surface-hover);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-item {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 30;
  opacity: 0;
  transform: translateY(6px);
  visibility: hidden;
  pointer-events: none;
  transition: opacity 320ms ease, transform 320ms ease, visibility 0s linear 320ms;
}

.dropdown::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  height: 12px;
}

.dropdown-menu a {
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  color: var(--muted);
  transition: background var(--transition), color var(--transition);
}

.dropdown-menu a:hover,
.dropdown-menu a:focus {
  background: var(--menu-hover);
  color: var(--text);
}

.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
  pointer-events: auto;
  transition-delay: 0s;
}

.lang-switch {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.lang-switch::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  height: 12px;
}

.lang-trigger {
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  font-size: 12px;
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.lang-trigger:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

.lang-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 140px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  z-index: 40;
  opacity: 0;
  transform: translateY(6px);
  visibility: hidden;
  pointer-events: none;
  transition: opacity 320ms ease, transform 320ms ease, visibility 0s linear 320ms;
}

.lang-switch:hover .lang-menu,
.lang-switch:focus-within .lang-menu {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
  pointer-events: auto;
  transition-delay: 0s;
}

.lang-option {
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  text-align: left;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.lang-option:hover,
.lang-option:focus {
  background: var(--menu-hover);
  color: var(--text);
}

.lang-option.is-active {
  background: var(--accent-soft);
  color: var(--text);
}

.btn {
  border-radius: 12px;
  padding: 11px 16px;
  border: 1px solid var(--border);
  background: transparent;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition),
    border-color var(--transition);
  font-weight: 600;
  line-height: 1.2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--btn-primary-bg);
  color: var(--btn-primary-text);
  border-color: rgba(147, 197, 253, 0.45);
  box-shadow: var(--btn-primary-shadow);
}

.btn-primary:hover {
  background: var(--btn-primary-bg-hover);
  transform: translateY(-1px);
}

.btn:disabled,
.btn.is-disabled {
  cursor: not-allowed;
  opacity: 0.6;
  box-shadow: none;
  transform: none;
  pointer-events: none;
}

.btn-outline {
  border-color: var(--btn-outline-border);
  background: var(--btn-outline-bg);
}

.btn-outline:hover {
  border-color: var(--btn-outline-hover-border);
  background: var(--btn-outline-hover-bg);
}

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

.btn-ghost:hover {
  color: var(--text);
  background: var(--surface-hover);
}

.hero {
  padding: 96px 0 72px;
}

.hero-home {
  background: var(--hero-bg);
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
  align-items: center;
}

.hero-stack {
  display: grid;
  gap: 28px;
  text-align: center;
}

.full-width {
  width: 100%;
}

.center-actions {
  justify-content: center;
}

.hero-title {
  font-size: clamp(32px, 4vw, 48px);
  margin: 0 0 20px;
  letter-spacing: -0.03em;
}

.hero-text {
  color: var(--muted);
  margin: 0 0 28px;
  font-size: 16px;
}

.hero-card {
  background: var(--hero-card-bg);
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid var(--hero-card-border);
  box-shadow: var(--hero-card-shadow);
}

.hero-panel {
  display: grid;
  gap: 16px;
  box-shadow: var(--shadow);
}

.hero-card h3 {
  margin: 0 0 12px;
  font-size: 18px;
}

.hero-metrics {
  display: grid;
  gap: 16px;
}

.metric {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
  color: var(--muted);
}

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

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow);
}

.card-icon {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: 16px;
}

.card-title {
  margin: 0 0 8px;
  font-size: 18px;
}

.card-text {
  color: var(--muted);
  margin: 0;
}

.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
  align-items: center;
}

.panel {
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 32px;
}

.create-app-section {
  padding-top: 32px;
  scroll-margin-top: 110px;
}

.panel-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.panel-preset {
  border-radius: 999px;
  padding: 8px 16px;
  border: 1px solid var(--btn-outline-border);
  background: var(--btn-outline-bg);
  color: var(--text);
  font-size: 13px;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}

.panel-preset:hover,
.panel-preset:focus {
  border-color: var(--btn-outline-hover-border);
  background: var(--btn-outline-hover-bg);
}

.panel-examples {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  color: var(--muted);
  font-size: 14px;
}

.panel-examples-label {
  font-weight: 500;
}

.panel-example {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition);
}

.panel-example:hover,
.panel-example:focus {
  color: var(--text);
}

.panel textarea {
  width: 100%;
  min-height: 180px;
  resize: vertical;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg-soft);
  color: var(--text);
  padding: 16px;
}

.panel textarea::placeholder {
  color: var(--placeholder);
}

.panel-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--badge-bg);
  color: var(--badge-text);
  font-size: 12px;
}

.nav-balance-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin: 0;
  padding: 0 12px;
  min-height: 40px;
  height: 40px;
  box-sizing: border-box;
  white-space: nowrap;
  line-height: 1;
}

.nav-balance-pill strong {
  margin: 0;
  color: var(--text);
  font-weight: 700;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.price {
  font-size: 30px;
  margin: 16px 0;
}

.price-period {
  font-size: 14px;
  color: var(--muted);
  margin-left: 6px;
}

.price-value {
  font-weight: 600;
}

.auth-layout {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 40px 24px;
}

.form-card {
  width: min(420px, 100%);
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 32px;
  box-shadow: var(--shadow);
}

.form-card h1 {
  margin: 0 0 12px;
}

.auth-toggle {
  display: flex;
  gap: 12px;
  margin: 20px 0 12px;
}

.auth-toggle-btn {
  flex: 1;
}

.auth-toggle-btn.is-active {
  border-color: var(--btn-outline-hover-border);
  background: var(--btn-outline-hover-bg);
  color: var(--text);
}

.auth-message {
  margin: 16px 0;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-hover);
  color: var(--muted);
  display: none;
}

.auth-message.is-visible {
  display: block;
}

.auth-message.is-error {
  border-color: var(--danger-border);
  color: var(--danger-text);
  background: var(--danger-bg);
}

.auth-message.is-success {
  border-color: var(--success-border);
  color: var(--success-text);
  background: var(--success-bg);
}

.auth-sso {
  display: grid;
  gap: 12px;
  margin: 16px 0 8px;
}

.auth-sso-title {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

.auth-sso-buttons {
  display: grid;
  gap: 10px;
}

.auth-sso-btn {
  justify-content: center;
}

.auth-sso-note {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
}

.auth-divider {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 8px 0;
  color: var(--muted);
  font-size: 12px;
}

.auth-divider::before,
.auth-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

.auth-divider span {
  padding: 0 10px;
}

.form-field {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

.form-field input {
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  padding: 12px 14px;
  background: var(--bg-soft);
}

.form-footer {
  color: var(--muted);
  font-size: 13px;
}

.dashboard-layout {
  padding: 48px 0 72px;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.apps-source-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 16px;
}

.apps-source-tab {
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-elevated);
  color: var(--muted);
  font-size: 13px;
  padding: 8px 14px;
  cursor: pointer;
  transition: color var(--transition), background var(--transition), border-color var(--transition);
}

.apps-source-tab:hover,
.apps-source-tab:focus-visible {
  color: var(--text);
  border-color: var(--focus-ring);
}

.apps-source-tab.is-active {
  color: var(--text);
  border-color: var(--focus-ring);
  background: var(--surface-hover);
}

.apps-list {
  display: grid;
  gap: 12px;
}

.apps-list .card {
  padding: 16px 20px;
}

.app-meta {
  color: var(--muted);
  font-size: 13px;
  margin-top: 6px;
}

.app-debt {
  margin-top: 8px;
  margin-bottom: 0;
  color: var(--danger-text);
}

.app-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.balance-card {
  display: grid;
  gap: 12px;
}

.balance-value {
  font-size: 32px;
  font-weight: 600;
}

.plan-usage-card .plan-usage-label {
  display: block;
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.65;
  margin-bottom: 6px;
}

.plan-usage-title {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: baseline;
  font-size: 28px;
  font-weight: 650;
  margin-bottom: 4px;
}

.plan-usage-title span {
  opacity: 0.85;
  font-weight: 600;
}

.plan-usage-meter {
  display: grid;
  gap: 8px;
  padding: 12px;
  border-radius: 12px;
  background: color-mix(in srgb, var(--bg-elevated) 80%, #000 20%);
}

.plan-usage-included {
  font-size: 12px;
  opacity: 0.75;
}

.plan-usage-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
}

.plan-usage-bar {
  height: 8px;
  border-radius: 999px;
  background: color-mix(in srgb, currentColor 12%, transparent);
  overflow: hidden;
}

.plan-usage-bar > span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: #3ddc84;
  width: 0;
  transition: width 0.35s ease;
}

.modal {
  position: fixed;
  inset: 0;
  background: var(--modal-backdrop);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 50;
}

.modal.active {
  display: flex;
}

.modal-content {
  width: min(680px, 100%);
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 32px;
  box-shadow: var(--shadow);
  position: relative;
}

.modal-content--compact {
  width: min(540px, 100%);
  max-height: 82vh;
  overflow: auto;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
}

.package-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 8px 0 0;
}

.package-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-soft);
}

.payment-grid {
  display: grid;
  gap: 12px;
}

.payment-grid input {
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  padding: 12px 14px;
  background: var(--bg-soft);
}

.transactions-list {
  display: grid;
  gap: 10px;
  max-height: 360px;
  overflow: auto;
  padding-right: 4px;
}

.transaction-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-soft);
}

.transaction-item.is-credit {
  border-color: var(--success-border);
  background: var(--success-bg);
}

.transaction-item.is-debit {
  border-color: var(--danger-border);
  background: var(--danger-bg);
}

.transaction-main {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.transaction-main strong {
  word-break: break-word;
}

.transaction-date {
  color: var(--muted);
  font-size: 12px;
}

.transaction-delta {
  white-space: nowrap;
}

.transaction-item.is-credit .transaction-delta {
  color: var(--success-text);
}

.transaction-item.is-debit .transaction-delta {
  color: var(--danger-text);
}

.usage-chart-card,
.usage-table-card {
  margin-top: 16px;
  padding: 18px 18px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
}

.usage-chart-head,
.usage-table-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
  color: var(--muted);
  font-size: 13px;
}

.usage-chart-metric {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 10px;
  color: var(--text);
  font-size: 12px;
}

.usage-chart {
  width: 100%;
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.usage-chart svg {
  width: 100%;
  height: auto;
  max-height: 220px;
  aspect-ratio: 720 / 220;
  display: block;
}

.usage-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  margin-top: 12px;
}

.usage-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
}

.usage-legend-swatch {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.usage-table-wrap {
  overflow: auto;
  max-height: 480px;
}

.usage-table {
  width: 100%;
  border-collapse: collapse;
}

.usage-table th,
.usage-table td {
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  font-size: 13px;
  vertical-align: top;
}

.usage-table th {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  position: sticky;
  top: 0;
  background: var(--bg-elevated);
}

.usage-table td strong {
  font-weight: 600;
  word-break: break-word;
}

.usage-tokens {
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  font-weight: 650;
}

.usage-list {
  display: contents;
}

.usage-more {
  margin-top: 16px;
}

.section-header-row,
.usage-item-head,
.usage-meta,
.usage-exports {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.plan-card {
  display: grid;
  align-content: start;
  gap: 12px;
}

.plan-card .btn {
  margin-top: auto;
}

.plan-card.is-export {
  border-color: var(--border-strong);
}

.site-footer {
  padding: 32px 0 48px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
}

.footer-icons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 14px;
  align-items: center;
}

.footer-icons img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  border-radius: 10px;
  background: var(--footer-icon-bg);
  padding: 4px;
  opacity: 0.8;
  transition: opacity var(--transition), transform var(--transition);
}

.footer-icons img:hover {
  opacity: 1;
  transform: translateY(-2px);
}

.section-header {
  display: grid;
  gap: 8px;
  margin-bottom: 24px;
}

.soft-section {
  background: var(--bg-soft);
}

.link-card {
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.link-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow);
}

.cta-section {
  padding-top: 0;
}

.cta-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 32px;
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.page-hero {
  padding: 72px 0 48px;
  background: var(--hero-bg);
}

.usecase-hero .page-subtitle {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.usecase-hero-card {
  display: grid;
  gap: 12px;
  justify-items: center;
  text-align: center;
  padding: 24px 28px;
  border-radius: var(--radius-lg);
  background: var(--info-bg);
  border: 1px solid var(--info-border);
  box-shadow: var(--shadow);
}

.page-title {
  font-size: clamp(28px, 3.2vw, 42px);
  margin: 12px 0 12px;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.page-subtitle {
  color: var(--muted);
  max-width: 760px;
  margin: 0;
}

.timeline-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.timeline-item {
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  padding: 20px;
  display: grid;
  gap: 12px;
}

.timeline-item h3 {
  margin: 0;
  font-size: 16px;
}

.list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
  color: var(--muted);
}

.list li::before {
  content: "•";
  margin-right: 8px;
  color: var(--accent);
}

.list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.docs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.doc-card {
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  padding: 24px;
  display: grid;
  gap: 12px;
}

.info-bar {
  display: grid;
  gap: 12px;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  background: var(--info-bg);
  border: 1px solid var(--info-border);
  color: var(--text);
}

.mobile-only {
  display: none;
}

@media (max-width: 920px) {
  .nav-links {
    display: none;
  }

  .mobile-only {
    display: inline-flex;
  }
}

@media (max-width: 1200px) {
  .logo {
    margin-left: -8px;
  }
}

@media (max-width: 720px) {
  .section {
    padding: 64px 0;
  }

  .hero {
    padding-top: 72px;
  }

  .nav {
    flex-wrap: wrap;
  }

  .panel {
    padding: 24px;
  }

  .cta-card {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Modernization overrides */
:root {
  --bg: #0b1220;
  --bg-elevated: #121c2f;
  --bg-soft: #0f1729;
  --text: #e6edf8;
  --muted: #9aacbf;
  --accent: #5b8cff;
  --accent-soft: rgba(91, 140, 255, 0.18);
  --border: rgba(151, 175, 207, 0.22);
  --border-strong: rgba(91, 140, 255, 0.56);
  --shadow: 0 24px 46px rgba(2, 9, 24, 0.52);
  --shadow-soft: 0 14px 28px rgba(3, 10, 24, 0.34);
  --header-bg: rgba(9, 15, 28, 0.88);
  --surface-hover: rgba(151, 175, 207, 0.2);
  --menu-hover: rgba(91, 140, 255, 0.16);
  --btn-primary-bg: #4f7dff;
  --btn-primary-bg-hover: #3d6df9;
  --btn-outline-bg: rgba(13, 21, 37, 0.8);
  --btn-outline-border: rgba(151, 175, 207, 0.3);
  --btn-outline-hover-border: rgba(91, 140, 255, 0.62);
  --btn-outline-hover-bg: rgba(91, 140, 255, 0.14);
  --focus-ring: #8cb0ff;
  --info-bg: rgba(75, 126, 250, 0.12);
  --info-border: rgba(120, 161, 255, 0.32);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --transition: 180ms ease;
}

body {
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

.site-header {
  border-bottom-color: rgba(151, 175, 207, 0.16);
  box-shadow: 0 8px 24px rgba(1, 8, 20, 0.25);
}

.nav {
  gap: 20px;
}

.nav-link.is-active {
  color: var(--text);
  background: var(--accent-soft);
  border: 1px solid var(--border-strong);
}

.btn {
  min-height: 42px;
  border-radius: 11px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn.btn-link {
  border-color: transparent;
  background: transparent;
  color: var(--accent);
  padding-inline: 4px;
}

.btn.btn-destructive {
  border-color: var(--danger-border);
  background: var(--danger-bg);
  color: var(--danger-text);
}

.btn.btn-destructive:hover {
  border-color: rgba(248, 113, 113, 0.72);
  background: rgba(248, 113, 113, 0.22);
}

.btn.btn-icon {
  width: 42px;
  padding-inline: 0;
}

.card,
.panel,
.cta-card,
.timeline-item,
.doc-card,
.modal-content {
  box-shadow: var(--shadow-soft);
}

.card-title {
  letter-spacing: -0.01em;
}

.panel textarea,
.form-field input,
.payment-grid input {
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.panel textarea:focus-visible,
.form-field input:focus-visible,
.payment-grid input:focus-visible {
  outline: none;
  border-color: var(--focus-ring);
  box-shadow: 0 0 0 3px rgba(140, 176, 255, 0.2);
  background: rgba(13, 22, 38, 0.95);
}

.panel-example {
  text-decoration: none;
  border-bottom: 1px dashed currentColor;
}

.auth-message,
[data-ai-status],
[data-apps-status],
[data-transactions-status] {
  border-radius: var(--radius-sm);
  border: 1px solid var(--info-border);
  background: var(--info-bg);
  color: var(--text);
  padding: 12px 14px;
}

[data-ai-status],
[data-apps-status],
[data-transactions-status] {
  font-size: 14px;
  margin-top: 14px;
}

[data-ai-status].is-error,
[data-apps-status].is-error,
[data-transactions-status].is-error {
  border-color: var(--danger-border);
  background: var(--danger-bg);
  color: var(--danger-text);
}

[data-ai-status].is-success,
[data-apps-status].is-success,
[data-transactions-status].is-success {
  border-color: var(--success-border);
  background: var(--success-bg);
  color: var(--success-text);
}

.apps-list .card {
  border-left: 3px solid transparent;
}

.apps-list .card:hover {
  border-left-color: var(--accent);
}

.form-field span {
  font-size: 13px;
  color: var(--muted);
}

.form-field-help {
  margin-top: -2px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}

.payment-grid .form-field {
  margin-bottom: 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 920px) {
  body.nav-open {
    overflow: hidden;
  }

  .nav {
    position: relative;
  }

  .mobile-only {
    min-width: 86px;
  }

  .nav-links {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    z-index: 60;
    padding: 14px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    background: var(--bg-elevated);
    box-shadow: var(--shadow);
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .nav-links.is-mobile-open {
    display: flex;
  }

  .nav-link {
    justify-content: flex-start;
    width: 100%;
    border-radius: 10px;
    padding: 10px 12px;
  }

  .nav-item {
    width: 100%;
    display: grid;
    gap: 6px;
  }

  .dropdown-menu {
    position: static;
    display: grid;
    gap: 6px;
    border: none;
    box-shadow: none;
    background: transparent;
    opacity: 1;
    visibility: visible;
    transform: none;
    pointer-events: auto;
    padding: 0 0 2px 12px;
  }
}

@media (max-width: 720px) {
  .auth-layout {
    padding: 24px 16px;
  }

  .form-card,
  .panel,
  .modal-content {
    padding: 22px;
  }

  .dashboard-layout {
    padding-top: 24px;
  }

  .page-title {
    white-space: normal;
  }

  .section-header-row,
  .usage-item-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .usage-content {
    grid-template-columns: 1fr;
  }

  .nav-actions {
    gap: 6px;
  }

  .nav-balance-pill,
  .nav-user-pill {
    max-width: 130px;
    overflow: hidden;
    text-overflow: ellipsis;
  }
}