/* ==========================================================================
   FinLens landing — dark theme. Palette mirrors the app's design tokens
   (lib/theme/app_colors.dart). Do not introduce colours outside this ramp.
   ========================================================================== */

:root {
  /* Surfaces */
  --bg: #0A0A0B;
  --surface: #161618;
  --surface-alt: #1C1C1E;
  --surface-high: #2A2A2C;
  --divider: #2A2A2C;

  /* Text */
  --text-primary: #FFFFFF;
  --text-secondary: #8E8E93;
  --text-tertiary: #636366;

  /* Brand + semantic */
  --accent: #5E5CE6;
  --accent-light: #A5A3FF;
  --positive: #30D158;
  --negative: #FF453A;
  --warning: #FF9F0A;
  --info: #0A84FF;
  --goal: #BF5AF2;

  /* Layout */
  --maxw: 1120px;
  --radius: 16px;
  --radius-sm: 10px;
  --gap: 24px;
  --header-h: 64px;

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* Reset-ish */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; }
a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 20px;
}
.container--narrow { max-width: 720px; }

.skip-link {
  position: absolute;
  left: -999px;
}
.skip-link:focus {
  left: 12px; top: 12px; z-index: 100;
  background: var(--accent); color: #fff; padding: 8px 12px; border-radius: 8px;
}

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 15px; font-weight: 600; line-height: 1;
  padding: 13px 20px; border-radius: 12px; border: 1px solid transparent;
  cursor: pointer; transition: transform .12s ease, background .15s ease, border-color .15s ease;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { background: #6f6df0; }
.btn--ghost { background: transparent; color: var(--text-primary); border-color: var(--surface-high); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent-light); }
.btn--sm { padding: 9px 14px; font-size: 14px; border-radius: 10px; }
.btn--block { width: 100%; padding: 15px; }

/* ── Header ──────────────────────────────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10, 10, 11, 0.72);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, background .2s ease;
}
.site-header.is-scrolled { border-bottom-color: var(--divider); }
.site-header__inner {
  height: var(--header-h);
  display: flex; align-items: center; gap: 20px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand__mark { display: inline-flex; }
.brand__name { font-weight: 700; font-size: 18px; letter-spacing: -0.01em; }

.site-nav { display: flex; gap: 22px; margin-inline: auto; }
.site-nav a { color: var(--text-secondary); font-size: 15px; font-weight: 500; }
.site-nav a:hover { color: var(--text-primary); }

.site-header__actions { display: flex; align-items: center; gap: 14px; }

.lang-switcher { display: inline-flex; gap: 2px; background: var(--surface); border: 1px solid var(--divider); border-radius: 999px; padding: 3px; }
.lang-switcher__item {
  font-size: 12px; font-weight: 600; letter-spacing: .02em;
  color: var(--text-secondary); padding: 5px 9px; border-radius: 999px;
}
.lang-switcher__item.is-active { background: var(--surface-high); color: var(--text-primary); }
.lang-switcher__item:hover { color: var(--text-primary); }

.nav-toggle {
  display: none; flex-direction: column; gap: 4px; width: 40px; height: 40px;
  align-items: center; justify-content: center; background: var(--surface);
  border: 1px solid var(--divider); border-radius: 10px; cursor: pointer;
}
.nav-toggle span { width: 18px; height: 2px; background: var(--text-primary); border-radius: 2px; }

.mobile-nav { display: none; flex-direction: column; padding: 8px 20px 18px; border-bottom: 1px solid var(--divider); background: var(--bg); }
.mobile-nav a { padding: 12px 4px; color: var(--text-secondary); border-bottom: 1px solid var(--divider); }
.mobile-nav a:last-child { border-bottom: none; color: var(--text-primary); font-weight: 600; }

/* ── Hero ────────────────────────────────────────────────────────────────── */
.hero { position: relative; overflow: hidden; padding: 72px 0 40px; }
.hero::before {
  content: ""; position: absolute; inset: -30% 30% auto -10%; height: 520px;
  background: radial-gradient(closest-side, rgba(94,92,230,.28), transparent 70%);
  pointer-events: none;
}
.hero__inner { position: relative; display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.hero__title { font-size: clamp(34px, 5vw, 56px); line-height: 1.06; letter-spacing: -0.02em; margin: 18px 0 16px; }
.hero__subtitle { font-size: 18px; color: var(--text-secondary); max-width: 46ch; margin: 0 0 28px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero__note { display: flex; align-items: center; gap: 8px; color: var(--text-tertiary); font-size: 14px; margin-top: 22px; }
.hero__note svg { color: var(--positive); flex: none; }

.badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(94,92,230,.12); border: 1px solid rgba(94,92,230,.35);
  color: var(--accent-light); font-size: 13px; font-weight: 600;
  padding: 6px 12px; border-radius: 999px;
}
.badge__dot { width: 7px; height: 7px; border-radius: 50%; background: var(--positive); box-shadow: 0 0 0 4px rgba(48,209,88,.18); }

.hero__art { display: flex; justify-content: center; }

/* ── Phone mockups ───────────────────────────────────────────────────────── */
.phone {
  position: relative; background: #0d0d0f; border: 1px solid #2c2c30;
  border-radius: 34px; padding: 12px; box-shadow: 0 30px 70px rgba(0,0,0,.55);
}
.phone--hero { width: 300px; }
.phone--mini { width: 100%; max-width: 190px; padding: 8px; border-radius: 26px; }
.phone__notch { position: absolute; top: 12px; left: 50%; transform: translateX(-50%); width: 96px; height: 22px; background: #000; border-radius: 0 0 14px 14px; z-index: 2; }
.phone__screen { background: var(--bg); border-radius: 24px; overflow: hidden; height: 100%; }
.phone--mini .phone__screen { border-radius: 18px; }

.mock { padding: 34px 16px 18px; }
.mock--mini { padding: 16px 12px 14px; }
.mock__topbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.mock__title { font-weight: 700; font-size: 16px; }
.mock--mini .mock__title { font-size: 13px; }
.mock__eye { width: 20px; height: 20px; border-radius: 50%; border: 2px solid var(--text-tertiary); }

.mock__hero { display: flex; flex-direction: column; gap: 4px; padding: 16px; background: var(--surface); border-radius: var(--radius-sm); margin-bottom: 16px; }
.mock__hero--sm { padding: 12px; margin-bottom: 12px; }
.mock__label { font-size: 10px; letter-spacing: .12em; color: var(--text-tertiary); font-weight: 600; }
.mock__amount { font-size: 30px; font-weight: 700; letter-spacing: -0.01em; }
.mock__amount small { font-size: 14px; color: var(--text-secondary); font-weight: 600; }
.mock__amount--sm { font-size: 20px; }
.mock__delta { font-size: 12px; font-weight: 600; }
.mock__delta--up { color: var(--positive); }

.mock__group { display: flex; flex-direction: column; }
.mock__row { display: flex; align-items: center; gap: 10px; padding: 11px 4px; border-bottom: 1px solid var(--divider); }
.mock__row:last-child { border-bottom: none; }
.mock__row-name { font-size: 14px; }
.mock__row-amt { margin-left: auto; font-size: 14px; font-weight: 600; }
.mock__row-amt--neg { color: var(--negative); }
.dot { width: 9px; height: 9px; border-radius: 50%; flex: none; }

.mock__bars { display: flex; align-items: flex-end; gap: 8px; height: 70px; padding: 0 4px; }
.mock__bars span { flex: 1; background: linear-gradient(var(--accent), rgba(94,92,230,.4)); border-radius: 4px 4px 0 0; }

.mock__list { display: flex; flex-direction: column; gap: 8px; }
.mock__item { display: flex; align-items: center; gap: 8px; }
.mock__item .tile { width: 22px; height: 22px; border-radius: 7px; flex: none; opacity: .85; }
.mock__item-txt { display: flex; justify-content: space-between; flex: 1; font-size: 12px; }
.mock__item-txt em { font-style: normal; color: var(--text-secondary); font-weight: 600; }

.mock__budgets { display: flex; flex-direction: column; gap: 12px; }
.bar { display: flex; flex-direction: column; gap: 5px; }
.bar__label { font-size: 11px; color: var(--text-secondary); }
.bar__track { height: 8px; background: var(--surface-high); border-radius: 6px; overflow: hidden; }
.bar__track i { display: block; height: 100%; border-radius: 6px; }

.mock__donut { display: flex; justify-content: center; padding: 6px 0 12px; }
.donut {
  width: 96px; height: 96px; border-radius: 50%;
  background: conic-gradient(var(--accent) 0 42%, var(--positive) 42% 70%, var(--warning) 70% 88%, var(--info) 88% 100%);
  -webkit-mask: radial-gradient(circle 30px at center, transparent 98%, #000 100%);
          mask: radial-gradient(circle 30px at center, transparent 98%, #000 100%);
}
.mock__legend { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; font-size: 11px; color: var(--text-secondary); }
.mock__legend span { display: flex; align-items: center; gap: 6px; }
.mock__legend i { width: 9px; height: 9px; border-radius: 3px; }

/* ── Sections ────────────────────────────────────────────────────────────── */
.section { padding: 72px 0; }
.section--alt { background: var(--surface); }
.section__head { max-width: 640px; margin: 0 auto 44px; text-align: center; }
.section__title { font-size: clamp(26px, 3.4vw, 38px); letter-spacing: -0.02em; margin: 0 0 12px; }
.section__subtitle { font-size: 17px; color: var(--text-secondary); margin: 0; }

/* Features */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature-card {
  background: var(--surface-alt); border: 1px solid var(--divider);
  border-radius: var(--radius); padding: 24px; transition: transform .15s ease, border-color .15s ease;
}
.section--alt .feature-card { background: var(--surface-alt); }
.feature-card:hover { transform: translateY(-3px); border-color: var(--surface-high); }
.feature-card__icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 46px; height: 46px; border-radius: 12px; margin-bottom: 16px;
  color: var(--tile, var(--accent)); background: color-mix(in srgb, var(--tile, var(--accent)) 16%, transparent);
}
.feature-card__name { font-size: 18px; margin: 0 0 8px; }
.feature-card__desc { color: var(--text-secondary); font-size: 15px; margin: 0; }

/* Screens */
.screens-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; align-items: end; justify-items: center; }
.screen { margin: 0; text-align: center; width: 100%; }
.screen figcaption { margin-top: 14px; color: var(--text-secondary); font-size: 14px; font-weight: 500; }

/* Steps */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.step { display: flex; gap: 16px; align-items: flex-start; }
.step__num {
  flex: none; width: 38px; height: 38px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(94,92,230,.14); color: var(--accent-light); font-weight: 700;
}
.step__title { margin: 4px 0 6px; font-size: 17px; }
.step__desc { margin: 0; color: var(--text-secondary); font-size: 15px; }

/* FAQ */
.faq { display: flex; flex-direction: column; gap: 12px; }
.faq__item { background: var(--surface-alt); border: 1px solid var(--divider); border-radius: var(--radius-sm); padding: 4px 18px; }
.section--alt .faq__item { background: var(--bg); }
.faq__q { display: flex; align-items: center; justify-content: space-between; gap: 12px; cursor: pointer; font-weight: 600; font-size: 16px; padding: 14px 0; list-style: none; }
.faq__q::-webkit-details-marker { display: none; }
.faq__chevron { width: 10px; height: 10px; border-right: 2px solid var(--text-secondary); border-bottom: 2px solid var(--text-secondary); transform: rotate(45deg); transition: transform .2s ease; flex: none; }
.faq__item[open] .faq__chevron { transform: rotate(-135deg); }
.faq__a { margin: 0 0 14px; color: var(--text-secondary); font-size: 15px; }

/* Alerts */
.alert { border-radius: var(--radius-sm); padding: 14px 16px; font-size: 15px; margin-bottom: 20px; }
.alert--success { background: rgba(48,209,88,.12); border: 1px solid rgba(48,209,88,.4); color: #7ee59a; }
.alert--error { background: rgba(255,69,58,.12); border: 1px solid rgba(255,69,58,.4); color: #ff9a92; }

/* Contact form */
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field label { font-size: 14px; font-weight: 600; color: var(--text-secondary); }
.field input, .field textarea {
  width: 100%; background: var(--surface-alt); border: 1px solid var(--divider);
  color: var(--text-primary); font: inherit; font-size: 15px;
  padding: 13px 14px; border-radius: 12px; resize: vertical;
}
.field input::placeholder, .field textarea::placeholder { color: var(--text-tertiary); }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(94,92,230,.25); }
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"] { border-color: var(--negative); }
.field__error { color: #ff9a92; font-size: 13px; }
.contact-form__note { text-align: center; font-size: 13px; color: var(--text-tertiary); margin: 4px 0 0; }
.contact-form__note a { color: var(--text-tertiary); text-decoration: underline; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* Prose (privacy) */
.prose { padding-top: 24px; }
.prose--center { text-align: center; }
.prose__meta { color: var(--text-tertiary); font-size: 14px; margin-top: -4px; }
.prose p { color: var(--text-secondary); }
.back-link { display: inline-block; color: var(--text-secondary); margin-bottom: 20px; font-size: 14px; }
.back-link:hover { color: var(--text-primary); }
.notfound__code { font-size: 72px; font-weight: 800; color: var(--surface-high); letter-spacing: -0.03em; }

/* ── Footer ──────────────────────────────────────────────────────────────── */
.site-footer { border-top: 1px solid var(--divider); padding: 44px 0 28px; background: var(--bg); }
.site-footer__inner { display: flex; flex-wrap: wrap; gap: 28px; justify-content: space-between; align-items: flex-start; }
.site-footer__tagline { color: var(--text-secondary); font-size: 14px; margin: 8px 0 0; max-width: 32ch; }
.site-footer__links { display: flex; flex-direction: column; gap: 8px; }
.site-footer__links a { color: var(--text-secondary); font-size: 15px; }
.site-footer__links a:hover { color: var(--text-primary); }
.site-footer__lang { display: flex; flex-direction: column; gap: 8px; }
.site-footer__lang-label { color: var(--text-tertiary); font-size: 13px; }
.site-footer__legal { margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--divider); color: var(--text-tertiary); font-size: 13px; }

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; gap: 36px; }
  .hero__art { order: -1; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; }
  .screens-row { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .site-nav { display: none; }
  .site-header__actions .btn { display: none; }
  .nav-toggle { display: inline-flex; }
}

@media (max-width: 560px) {
  .section { padding: 56px 0; }
  .hero { padding: 48px 0 24px; }
  .feature-grid { grid-template-columns: 1fr; }
  .screens-row { grid-template-columns: repeat(2, 1fr); }
  .lang-switcher { display: none; }
  .site-footer__inner { flex-direction: column; gap: 20px; }
}

/* ── Motion layer ──────────────────────────────────────────────────────────
   Added on top of the existing design. No colours, spacing or layout change —
   only movement. All reveal states engage solely when JS marks <html>.anim-on,
   so without JS every element renders visible as before. */

@keyframes fl-float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}
@keyframes fl-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(48,209,88,.45); }
  70%  { box-shadow: 0 0 0 8px rgba(48,209,88,0); }
  100% { box-shadow: 0 0 0 0 rgba(48,209,88,0); }
}
@keyframes fl-bar-grow { from { transform: scaleY(0); } to { transform: scaleY(1); } }
@keyframes fl-bar-fill { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@keyframes fl-donut-in {
  from { transform: rotate(-120deg) scale(.85); opacity: 0; }
  to   { transform: none; opacity: 1; }
}
@keyframes fl-faq-in {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: none; }
}

/* Reveal-on-scroll — hidden base state, revealed once JS adds .is-visible */
.anim-on .hero__copy > *,
.anim-on .section__head,
.anim-on .feature-card,
.anim-on .screen,
.anim-on .step,
.anim-on .faq__item,
.anim-on .contact-form .field {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s ease, transform .7s cubic-bezier(.16, 1, .3, 1);
  will-change: opacity, transform;
}
.anim-on .hero__copy > *.is-visible,
.anim-on .section__head.is-visible,
.anim-on .feature-card.is-visible,
.anim-on .screen.is-visible,
.anim-on .step.is-visible,
.anim-on .faq__item.is-visible,
.anim-on .contact-form .field.is-visible {
  opacity: 1;
  transform: none;
}

/* Hero art fades in (transform is reserved for float + parallax) */
.anim-on .hero__art { opacity: 0; transition: opacity .9s ease; }
.anim-on .hero__art.is-visible { opacity: 1; }
.anim-on .hero__art.is-visible .phone--hero { animation: fl-float 6s ease-in-out infinite; }

/* Badge status dot breathes (layers over its existing static halo) */
.anim-on .badge__dot { animation: fl-pulse 2.6s ease-out infinite; }

/* Mock charts animate in when scrolled into view */
.mock__bars span { transform-origin: bottom; }
.anim-on .mock__bars.is-grown span { animation: fl-bar-grow .7s cubic-bezier(.16, 1, .3, 1) both; }
.anim-on .mock__bars.is-grown span:nth-child(2) { animation-delay: .08s; }
.anim-on .mock__bars.is-grown span:nth-child(3) { animation-delay: .16s; }
.anim-on .mock__bars.is-grown span:nth-child(4) { animation-delay: .24s; }

.bar__track i { transform-origin: left; }
.anim-on .bar__track.is-grown i { animation: fl-bar-fill .8s cubic-bezier(.16, 1, .3, 1) both; }

.anim-on .donut.is-grown { animation: fl-donut-in .8s ease both; }

/* FAQ answer eases in when opened (chevron rotation already handled above) */
.faq__item[open] .faq__a { animation: fl-faq-in .28s ease both; }

/* Micro-interactions — augment existing hover styles, palette untouched */
.feature-card__icon { transition: transform .2s cubic-bezier(.16, 1, .3, 1); }
.feature-card:hover .feature-card__icon { transform: rotate(-6deg) scale(1.08); }

.btn--primary { transition: transform .12s ease, background .15s ease, box-shadow .2s ease; }
.btn--primary:hover { box-shadow: 0 10px 26px rgba(94, 92, 230, .32); }

.site-nav a { position: relative; }
.site-nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -4px; height: 2px;
  background: var(--accent-light); border-radius: 2px;
  transform: scaleX(0); transform-origin: left; transition: transform .22s ease;
}
.site-nav a:hover::after { transform: scaleX(1); }

/* ── Reduced motion — keep only a soft opacity fade, no movement ──────────── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .anim-on .hero__copy > *,
  .anim-on .section__head,
  .anim-on .feature-card,
  .anim-on .screen,
  .anim-on .step,
  .anim-on .faq__item,
  .anim-on .contact-form .field,
  .anim-on .hero__art {
    transform: none !important;
    transition: opacity .5s ease !important;
  }
}