/* BudgeTake.com — marketing landing page
   Extends the app's own "institutional ledger" identity (deep ink-indigo + brass accent on warm
   paper) rather than inventing a new one — see frontend/src/styles.scss for the source tokens. */

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

:root {
  --font-sans: 'Manrope', system-ui, -apple-system, sans-serif;
  --font-display: 'Fraunces', 'Iowan Old Style', 'Georgia', serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  --color-bg: #f5f3ee;
  --color-surface: #ffffff;
  --color-sidebar: #161a2c;
  --color-sidebar-2: #1d2238;

  --color-ink: #1c1e2a;
  --color-ink-2: #5c6175;
  --color-ink-3: #93989f;

  --color-line: #e9e4d9;
  --color-line-2: #ddd6c8;

  --color-primary: #3d4a8c;
  --color-primary-dark: #262f63;
  --color-primary-soft: #eceefa;

  --color-accent: #c08a3e;
  --color-accent-soft: #f6ead4;

  --color-green: #16a06a;   --color-green-soft: #e2f5ec;
  --color-orange: #e08a12;  --color-orange-soft: #fbf0dc;
  --color-red: #dc4b45;     --color-red-soft: #fbe9e8;
  --color-violet: #7a5af0;  --color-violet-soft: #eeeafd;
  --color-teal: #178a98;    --color-teal-soft: #def1f3;

  --shell-w: 1180px;
}

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-ink);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-display);
  letter-spacing: -0.01em;
  color: var(--color-ink);
  margin: 0;
}

p { margin: 0; }
a { color: inherit; }
img { max-width: 100%; display: block; }
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 0.75rem 1.25rem;
  border-radius: 0 0 10px 0;
  z-index: 200;
  font-weight: 700;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.shell {
  max-width: var(--shell-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.9375rem;
  text-decoration: none;
  border-radius: 999px;
  padding: 0.75rem 1.5rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--sm { padding: 0.5rem 1.125rem; font-size: 0.8125rem; }
.btn--lg { padding: 0.9375rem 1.875rem; font-size: 1rem; }
.btn--block { width: 100%; }

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 10px 24px -10px rgba(61, 74, 140, 0.55);
}
.btn--primary:hover { background: var(--color-primary-dark); }

.btn--accent {
  background: var(--color-accent);
  color: #241705;
  box-shadow: 0 10px 24px -10px rgba(192, 138, 62, 0.6);
}
.btn--accent:hover { background: #ab7935; }

.btn--outline {
  background: transparent;
  color: var(--color-primary-dark);
  border-color: var(--color-line-2);
}
.btn--outline:hover { border-color: var(--color-primary); background: var(--color-primary-soft); }

.btn--ghost {
  background: transparent;
  color: var(--color-ink-2);
}
.btn--ghost:hover { color: var(--color-primary-dark); }

.btn--ghost-dark {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.35);
}
.btn--ghost-dark:hover { border-color: #fff; background: rgba(255, 255, 255, 0.08); }

/* ---------- badges (mirrors app's .badge language) ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  white-space: nowrap;
}
.badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; flex-shrink: 0; }
.badge-success { background: var(--color-green-soft); color: var(--color-green); }
.badge-secondary { background: #eef0f4; color: var(--color-ink-2); }
.badge-warning { background: var(--color-orange-soft); color: var(--color-orange); }
.badge-danger { background: var(--color-red-soft); color: var(--color-red); }
.badge-violet { background: var(--color-violet-soft); color: var(--color-violet); }
.badge-teal { background: var(--color-teal-soft); color: var(--color-teal); }

/* ---------- nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245, 243, 238, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.nav.is-scrolled {
  border-color: var(--color-line);
  box-shadow: 0 4px 20px -12px rgba(28, 30, 42, 0.15);
}

.nav__row {
  display: flex;
  align-items: center;
  gap: 2rem;
  height: 72px;
}

.nav__brand { display: flex; align-items: center; gap: 0.625rem; text-decoration: none; }
.nav__mark { border-radius: 8px; }
.nav__wordmark { height: 20px; width: auto; }

.nav__links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-ink-2);
  margin-left: 0.5rem;
}
.nav__links a { text-decoration: none; transition: color 0.15s ease; }
.nav__links a:hover { color: var(--color-primary-dark); }

.nav__actions {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  margin-left: auto;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: transparent;
  border: 1px solid var(--color-line-2);
  border-radius: 999px;
  padding: 0.4rem 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-ink-3);
  cursor: pointer;
  letter-spacing: 0.02em;
}
.lang-switch span[data-lang-opt] { padding: 0 0.15rem; transition: color 0.15s ease; }
.lang-switch span.is-active { color: var(--color-primary-dark); }
.lang-switch__sep { color: var(--color-line-2); }
.lang-switch:hover { border-color: var(--color-primary); }

.nav__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  cursor: pointer;
  margin-left: 0.5rem;
}
.nav__burger span { display: block; height: 2px; width: 22px; background: var(--color-ink); border-radius: 2px; transition: transform 0.2s ease, opacity 0.2s ease; }
.nav__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav__mobile {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.5rem 1.5rem 1.5rem;
  border-top: 1px solid var(--color-line);
}
.nav__mobile a {
  padding: 0.75rem 0.25rem;
  text-decoration: none;
  font-weight: 600;
  color: var(--color-ink);
  border-bottom: 1px solid var(--color-line);
}
.nav__mobile-actions { display: flex; gap: 0.75rem; margin-top: 1rem; }
.nav__mobile-actions .btn { flex: 1; }
.nav.is-open .nav__mobile { display: flex; }

@media (max-width: 900px) {
  .nav__links { display: none; }
  .nav__actions .btn { display: none; }
  .nav__burger { display: flex; }
}

/* ---------- hero ---------- */
.hero {
  padding: 4.5rem 0 5rem;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -180px;
  right: -160px;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(192, 138, 62, 0.16), transparent 70%);
  pointer-events: none;
}

.hero__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 460px);
  gap: 3.5rem;
  align-items: center;
  position: relative;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0 0 1rem;
}

.hero__title {
  font-size: clamp(2.25rem, 4vw, 3.375rem);
  font-weight: 600;
  line-height: 1.08;
  margin-bottom: 1.5rem;
}

.hero__subhead {
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--color-ink-2);
  max-width: 46ch;
  margin-bottom: 2rem;
}

.hero__ctas { display: flex; flex-wrap: wrap; gap: 0.875rem; }

.hero__trust {
  margin-top: 1.25rem;
  font-size: 0.8125rem;
  color: var(--color-ink-3);
  font-weight: 600;
}

/* ---------- signature element: the ledger card ---------- */
.ledger-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: 20px;
  box-shadow: 0 28px 60px -24px rgba(28, 30, 42, 0.28);
  padding: 1.75rem 1.75rem 1.5rem 2.25rem;
  overflow: hidden;
}
.ledger-card__spine {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 8px;
  background: linear-gradient(180deg, var(--color-accent), var(--color-primary));
}

.ledger-card__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 0.875rem;
}
.ledger-card__eyebrow {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-ink-3);
  margin-bottom: 0.25rem;
}
.ledger-card__title {
  font-size: 1.1875rem;
  font-weight: 600;
  line-height: 1.25;
}

.ledger-card__ref-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px dashed var(--color-line-2);
}
.ledger-card__ref { font-size: 0.8125rem; font-weight: 600; color: var(--color-primary-dark); }
.ledger-card__updated { font-size: 0.75rem; color: var(--color-ink-3); }

.ledger-card__figures {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}
.ledger-card__figure-label { font-size: 0.7rem; font-weight: 600; color: var(--color-ink-3); margin-bottom: 0.25rem; }
.ledger-card__figure-value { font-size: 1.0625rem; font-weight: 700; color: var(--color-ink); }
.ledger-card__figure-value--accent { color: var(--color-primary-dark); }

.ledger-card__bar {
  position: relative;
  width: 100%;
  height: 0.625rem;
  background: #eceae2;
  border-radius: 1rem;
  overflow: hidden;
  display: flex;
}
.ledger-card__bar-fill {
  height: 100%;
  background: var(--color-primary);
  transition: width 1.1s cubic-bezier(0.16, 1, 0.3, 1);
}
.ledger-card__bar-fill--engaged { background: var(--color-accent); }

.ledger-card__bar-legend {
  display: flex;
  gap: 1.25rem;
  margin: 0.625rem 0 1.375rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-ink-2);
}
.ledger-card__bar-legend span { display: inline-flex; align-items: center; gap: 0.4rem; }
.dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.dot--primary { background: var(--color-primary); }
.dot--accent { background: var(--color-accent); }

.ledger-card__rows { list-style: none; margin: 0; padding: 1rem 0 0; border-top: 1px solid var(--color-line); }
.ledger-card__rows li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.625rem 0;
  font-size: 0.8125rem;
  font-weight: 600;
}
.ledger-card__row-name { color: var(--color-ink); }

/* ---------- trust strip ---------- */
.trust-strip {
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  padding: 1.75rem 0;
}
.trust-strip__row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}
.trust-strip__row p {
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--color-ink-2);
  display: flex;
  gap: 0.75rem;
}
.trust-strip__mark {
  color: var(--color-accent);
  font-weight: 700;
  font-size: 0.75rem;
  flex-shrink: 0;
}

/* ---------- sections ---------- */
.section { padding: 6rem 0; }
.section--muted { background: var(--color-surface); border-top: 1px solid var(--color-line); border-bottom: 1px solid var(--color-line); }

.section__head { max-width: 640px; margin: 0 0 3rem; }
.section__title { font-size: clamp(1.75rem, 2.6vw, 2.25rem); font-weight: 600; line-height: 1.2; margin: 0.75rem 0 1rem; }
.section__subhead { font-size: 1.0625rem; color: var(--color-ink-2); line-height: 1.6; }

/* ---------- features ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: 16px;
  padding: 1.75rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 36px -20px rgba(28, 30, 42, 0.22);
  border-color: var(--color-line-2);
}
.feature-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--color-primary-soft);
  color: var(--color-primary-dark);
  margin-bottom: 1.125rem;
}
.feature-card__icon svg { width: 22px; height: 22px; }
.feature-card h3 { font-size: 1.0625rem; font-weight: 600; margin-bottom: 0.5rem; }
.feature-card p { font-size: 0.9rem; line-height: 1.6; color: var(--color-ink-2); }

/* ---------- workflow timeline (a real sequence — numbered on purpose) ---------- */
.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  position: relative;
}
.timeline::before {
  content: '';
  position: absolute;
  top: 15px;
  left: 4%;
  right: 4%;
  height: 1px;
  background: var(--color-line-2);
}
.timeline__step {
  position: relative;
  padding: 0 1.25rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.timeline__step:last-child { padding-right: 0; }
.timeline__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 1px solid var(--color-line-2);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-ink-2);
  position: relative;
  z-index: 1;
}
.timeline__badge { align-self: flex-start; }
.timeline__desc { font-size: 0.85rem; line-height: 1.55; color: var(--color-ink-2); }

/* ---------- pricing ---------- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  align-items: stretch;
}
.plan-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: 18px;
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
}
.plan-card--featured {
  border-color: var(--color-primary);
  box-shadow: 0 24px 48px -24px rgba(61, 74, 140, 0.35);
}
.plan-card__ribbon {
  position: absolute;
  top: -13px;
  left: 1.75rem;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
}
.plan-card__name { font-family: var(--font-display); font-size: 1.375rem; font-weight: 600; margin-bottom: 0.4rem; }
.plan-card__desc { font-size: 0.875rem; color: var(--color-ink-2); line-height: 1.55; min-height: 2.6em; margin-bottom: 1.25rem; }
.plan-card__price { font-family: var(--font-mono); font-size: 1.75rem; font-weight: 700; color: var(--color-ink); margin-bottom: 1.5rem; }
.plan-card__price span { font-family: var(--font-sans); font-size: 0.875rem; font-weight: 600; color: var(--color-ink-3); }

.plan-card__caps { list-style: none; margin: 0 0 1.75rem; padding: 1.25rem 0 0; border-top: 1px solid var(--color-line); flex: 1; }
.plan-card__caps li {
  display: flex;
  align-items: baseline;
  gap: 0.625rem;
  padding: 0.5rem 0;
  font-size: 0.875rem;
  color: var(--color-ink-2);
}
.plan-card__caps li .mono { color: var(--color-ink); font-weight: 700; min-width: 2.5ch; }

/* ---------- final CTA band ---------- */
.cta-band {
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, var(--color-sidebar-2) 0%, var(--color-sidebar) 55%, #0c0f1c 100%);
  padding: 5.5rem 0;
  text-align: center;
}
.cta-band__pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}
.cta-band::before {
  content: '';
  position: absolute;
  top: -160px;
  left: 50%;
  transform: translateX(-50%);
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(192, 138, 62, 0.28), transparent 70%);
  pointer-events: none;
}
.cta-band__inner { position: relative; z-index: 1; }
.cta-band__title { font-size: clamp(1.875rem, 3.4vw, 2.625rem); color: #fff; font-weight: 600; margin-bottom: 0.875rem; }
.cta-band__subhead { font-size: 1.0625rem; color: rgba(255, 255, 255, 0.78); margin-bottom: 2rem; }
.cta-band__ctas { justify-content: center; }

/* ---------- footer ---------- */
.footer { padding: 2.75rem 0; }
.footer__row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}
.footer__wordmark { height: 16px; width: auto; }
.footer__tagline { font-size: 0.8125rem; color: var(--color-ink-2); flex: 1; min-width: 220px; }
.footer__links { display: flex; gap: 1.25rem; font-size: 0.8125rem; font-weight: 600; }
.footer__links a { text-decoration: none; color: var(--color-ink-2); }
.footer__links a:hover { color: var(--color-primary-dark); }
.footer__copy { font-size: 0.8125rem; color: var(--color-ink-3); white-space: nowrap; }

/* ---------- scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal--delay-1.is-visible { transition-delay: 0.1s; }
.reveal--delay-2.is-visible { transition-delay: 0.2s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .ledger-card__bar-fill { transition: none; }
  .btn:hover { transform: none; }
  .feature-card:hover { transform: none; }
}

/* ---------- responsive ---------- */
@media (max-width: 1020px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; max-width: 440px; margin: 0 auto; }
  .trust-strip__row { grid-template-columns: repeat(2, 1fr); }
  .timeline { grid-template-columns: 1fr; gap: 1.75rem; }
  .timeline::before { display: none; }
}

@media (max-width: 900px) {
  .hero__row { grid-template-columns: 1fr; }
  .hero__art { order: -1; max-width: 460px; margin: 0 auto; }
}

@media (max-width: 640px) {
  .shell { padding: 0 1.25rem; }
  .hero { padding: 2.5rem 0 3rem; }
  .section { padding: 3.75rem 0; }
  .feature-grid { grid-template-columns: 1fr; }
  .trust-strip__row { grid-template-columns: 1fr; gap: 1.25rem; }
  .ledger-card { padding: 1.5rem 1.25rem 1.25rem 1.75rem; }
  .ledger-card__figures { gap: 0.5rem; }
  .ledger-card__figure-value { font-size: 0.9375rem; }
  .footer__row { flex-direction: column; align-items: flex-start; }
}