:root {
  --radius: 14px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html, body { min-height: 100%; }

body[data-theme="light"] {
  --bg: #FFFFFF;
  --surface: #F8FAFC;
  --surface-soft: #F4F8FC;
  --text: #0F172A;
  --muted: #475569;
  --line: #E2E8F0;
  --primary: #0F766E;
  --primary-hover: #0B5E58;
  --primary-ink: #FFFFFF;
  --glow-a: #E6F4F2;
  --glow-b: #EEF6FF;
  --preview-bg-a: #F8FCFC;
  --preview-bg-b: #F1F8FB;
  --preview-border: #D7E3EA;
  --preview-surface: #FFFFFF;
  --preview-surface-soft: #F6FAFC;
  --preview-text: #0F172A;
  --preview-muted: #5B6B80;
  --preview-accent: #0F766E;
  --preview-income: #16A34A;
  --preview-expense: #DC2626;
}

body[data-theme="dark"] {
  --bg: #0B1220;
  --surface: #111B2D;
  --surface-soft: #162236;
  --text: #E5E7EB;
  --muted: #9FB0C8;
  --line: #243249;
  --primary: #0F766E;
  --primary-hover: #0B5E58;
  --primary-ink: #FFFFFF;
  --glow-a: #12303A;
  --glow-b: #182B44;
  --preview-bg-a: #0B1424;
  --preview-bg-b: #0E1A2B;
  --preview-border: #27364F;
  --preview-surface: #132136;
  --preview-surface-soft: #102035;
  --preview-text: #E5E7EB;
  --preview-muted: #A5B6CE;
  --preview-accent: #2AA79A;
  --preview-income: #4ADE80;
  --preview-expense: #F87171;
}

body {
  font-family: Inter, system-ui, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 100% -20%, var(--glow-a) 0%, transparent 60%),
    radial-gradient(900px 500px at -10% 0%, var(--glow-b) 0%, transparent 60%),
    var(--bg);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  max-width: 1120px;
  margin: 0 auto;
  padding: 18px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
}

.brand {
  text-decoration: none;
  color: var(--text);
  letter-spacing: .02em;
  display: inline-flex;
  align-items: center;
  line-height: 1;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: block;
  filter: drop-shadow(0 8px 18px rgba(15, 118, 110, .26));
}


.menu-controls {
  display: flex;
  gap: 8px;
  margin-left: auto;
}

main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 12px 20px 56px;
  width: 100%;
  flex: 1 0 auto;
}

.hero,
.card,
.plan-card,
.final-cta,
.plans-header {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.hero {
  padding: 44px 34px;
}

.badge {
  margin: 0 0 8px;
  font-size: 12px;
  color: var(--muted);
  border: 1px solid var(--line);
  display: inline-block;
  border-radius: 999px;
  padding: 4px 10px;
  background: var(--surface-soft);
}

h1 {
  margin: 0;
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.08;
  max-width: 100%;
}

.subtitle {
  margin: 14px 0 0;
  color: var(--muted);
  max-width: 100%;
}

.hero-actions {
  margin-top: 22px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.cards {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.app-preview {
  margin-top: 14px;
}

.preview-shell {
  background: linear-gradient(140deg, var(--preview-bg-a) 0%, var(--preview-bg-b) 100%);
  border: 1px solid var(--preview-border);
  border-radius: 16px;
  padding: 16px;
  color: var(--preview-text);
  box-shadow: 0 16px 36px rgba(3, 8, 22, .42);
}

.preview-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
}

.preview-title {
  margin: 0;
  font-size: 28px;
  font-weight: 800;
  color: var(--preview-text);
}

.preview-sub {
  margin: 4px 0 0;
  color: var(--preview-muted);
  font-size: 14px;
}

.preview-month {
  border: 1px solid var(--preview-border);
  border-radius: 12px;
  padding: 9px 12px;
  color: var(--preview-text);
  font-weight: 700;
  white-space: nowrap;
  background: color-mix(in oklab, var(--preview-surface) 90%, black 10%);
}

.preview-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.preview-card {
  border: 1px solid var(--preview-border);
  border-radius: 12px;
  background: var(--preview-surface);
  padding: 14px;
}

.preview-card span {
  display: block;
  font-size: 13px;
  color: var(--preview-muted);
  letter-spacing: .08em;
}

.preview-card strong {
  display: block;
  margin-top: 4px;
  font-size: 34px;
  line-height: 1.1;
  color: var(--preview-text);
}

.preview-balance { border-left: 3px solid var(--preview-accent); }
.preview-income { border-left: 3px solid var(--preview-income); }
.preview-expense { border-left: 3px solid var(--preview-expense); }

.preview-income strong { color: var(--preview-income); }
.preview-expense strong { color: var(--preview-expense); }

.preview-input {
  margin-top: 12px;
  border: 1px solid var(--preview-border);
  border-radius: 12px;
  background: var(--preview-surface-soft);
  padding: 12px;
}

.preview-label {
  margin: 0 0 9px;
  font-size: 13px;
  color: var(--preview-text);
  letter-spacing: .06em;
}

.preview-input-row {
  display: grid;
  grid-template-columns: 210px 1fr 48px;
  gap: 8px;
}

.preview-select,
.preview-text {
  border: 1px solid var(--preview-border);
  border-radius: 12px;
  background: color-mix(in oklab, var(--preview-surface) 90%, black 10%);
  min-height: 42px;
  display: flex;
  align-items: center;
  padding: 0 12px;
}

.preview-select {
  color: var(--preview-text);
  font-weight: 700;
}

.preview-text {
  color: var(--preview-muted);
  font-family: "Consolas", "SFMono-Regular", monospace;
}

.preview-send {
  border: 0;
  border-radius: 12px;
  background: var(--preview-accent);
  color: #ffffff;
  font-size: 20px;
  cursor: pointer;
}

.preview-list {
  margin-top: 12px;
}

.preview-list-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.preview-list-head p {
  margin: 0;
  font-weight: 700;
  color: var(--preview-text);
}

.preview-list-head a {
  color: var(--preview-muted);
  text-decoration: none;
  font-size: 14px;
}

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

.preview-item + .preview-item {
  margin-top: 8px;
}

.preview-item strong {
  display: block;
  color: var(--preview-text);
}

.preview-item span {
  display: block;
  color: var(--preview-muted);
  font-size: 13px;
  margin-top: 2px;
}

.preview-item em {
  font-style: normal;
  font-weight: 800;
  white-space: nowrap;
}

.preview-item .is-income { color: var(--preview-income); }
.preview-item .is-expense { color: var(--preview-expense); }

.preview-insight {
  margin-top: 12px;
  border: 1px solid var(--preview-border);
  border-radius: 12px;
  background: var(--preview-surface-soft);
  padding: 12px 14px;
}

.preview-insight-label {
  margin: 0;
  color: var(--preview-muted);
  letter-spacing: .06em;
  font-size: 13px;
}

.preview-insight strong {
  display: block;
  margin-top: 4px;
  color: var(--preview-text);
  font-size: 22px;
  line-height: 1.25;
}

.preview-insight a {
  display: inline-block;
  margin-top: 7px;
  color: color-mix(in oklab, var(--preview-text) 74%, var(--preview-muted));
  text-decoration: none;
  font-size: 14px;
}

.card {
  padding: 20px;
}

.card h2 {
  margin: 0 0 6px;
  font-size: 18px;
}

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

.plans-header {
  margin-top: 14px;
  padding: 20px;
}

.plans-header h3 {
  margin: 0;
  font-size: 26px;
}

.plans-header p {
  margin: 8px 0 0;
  color: var(--muted);
}

.plans-grid {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.plan-card {
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.plan-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.plan-tag {
  display: inline-block;
  border-radius: 999px;
  border: 1px solid var(--line);
  padding: 4px 10px;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 10px;
  background: var(--surface-soft);
}

.plan-card h4 {
  margin: 0;
  font-size: 24px;
}

.plan-price {
  margin: 0;
  color: var(--muted);
  font-weight: 600;
  font-size: 14px;
}

.plan-note {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.plan-badge {
  display: inline-block;
  border-radius: 999px;
  border: 1px solid color-mix(in oklab, var(--primary) 32%, transparent);
  background: color-mix(in oklab, var(--primary) 12%, var(--surface));
  color: var(--text);
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 700;
}

.plan-features {
  margin: 0 0 18px;
  padding-left: 0;
  list-style: none;
  color: var(--text);
}

.plan-features li + li {
  margin-top: 6px;
}

.plan-features li {
  position: relative;
  padding-left: 22px;
}

.plan-features li::before {
  content: "?";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--primary);
  font-weight: 700;
}

.plan-card-premium {
  box-shadow: 0 0 0 2px color-mix(in oklab, var(--primary) 25%, transparent), 0 10px 28px rgba(15, 23, 42, 0.12);
}

body[data-theme="dark"] .plan-card-premium {
  box-shadow: 0 0 0 2px color-mix(in oklab, var(--primary) 22%, transparent), 0 12px 30px rgba(0, 0, 0, 0.32);
}

.final-cta {
  margin-top: 14px;
  padding: 26px 20px;
  text-align: center;
}

.final-cta h3 {
  margin: 0;
  font-size: 24px;
}

.final-cta p {
  margin: 8px 0 16px;
  color: var(--muted);
}

.btn {
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 10px 14px;
  text-decoration: none;
  font-weight: 600;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  cursor: pointer;
}

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

.btn-primary {
  background: var(--primary);
  color: var(--primary-ink);
}

.btn-primary:hover {
  box-shadow: 0 8px 18px rgba(15, 118, 110, .28);
}

.btn-ghost,
.btn-control {
  background: var(--surface);
  color: var(--text);
  border-color: var(--line);
}

.btn-control {
  min-width: 58px;
}

.btn-block {
  display: block;
  text-align: center;
  width: 100%;
}

@media (max-width: 980px) {
  .cards,
  .plans-grid {
    grid-template-columns: 1fr;
  }

  .topbar { align-items: center; }
  .menu-controls { margin-left: auto; }
  .btn-control {
    min-width: 52px;
    padding: 9px 12px;
  }

  .hero {
    padding: 32px 20px;
  }

  .brand-mark {
  width: 42px;
  height: 42px;
  display: block;
  filter: drop-shadow(0 8px 18px rgba(15, 118, 110, .26));
}

  
  .preview-cards {
    grid-template-columns: 1fr;
  }

  .preview-input-row {
    grid-template-columns: 1fr;
  }

  .preview-send {
    min-height: 42px;
  }

  .preview-title { font-size: 23px; }
  .preview-card strong { font-size: 28px; }
  .preview-insight strong { font-size: 18px; }
}

.site-footer {
  border-top: 1px solid var(--line);
  background: color-mix(in oklab, var(--surface) 86%, transparent);
  margin-top: auto;
  width: 100%;
}

.footer-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 16px 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}

.footer-copy {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.footer-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
}

.footer-links a:hover {
  color: var(--text);
}

.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;
}