/* buckets.finance — single stylesheet (Phase 18, 18-UI-SPEC.md).
   Tokens are transcribed from Buckets/Core/Theme/Theme.swift.
   No JavaScript, no external requests, flat color only (no shadows, no bucket fills).

/* ---------- Font (self-hosted, OFL; 18-02) ---------- */
@font-face {
  font-family: "Archivo";
  font-weight: 800;
  font-style: normal;
  font-display: swap;
  src: url(/fonts/Archivo-ExtraBold.woff2) format("woff2");
}

/* ---------- Tokens ---------- */
:root {
  color-scheme: light dark;

  /* spacing (multiples of 4) */
  --sp-xs: 4px;
  --sp-sm: 8px;
  --sp-md: 16px;
  --sp-gutter: 16px;
  --sp-lg: 24px;
  --sp-xl: 32px;
  --sp-2xl: 48px;
  --sp-3xl: 64px;

  /* radii (Theme.Radius) */
  --r-card: 18px;
  --r-btn: 16px;
  --r-chip: 10px;

  /* type */
  --font-display: "Archivo", ui-sans-serif, -apple-system, "SF Pro Display", system-ui, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, "Segoe UI", Roboto, sans-serif;

  /* color — light */
  --bg: #EEF0F4;
  --card: #FFFFFF;
  --ink: #0B1220;
  --sub: #5C6575;
  --line: rgba(11, 18, 32, .09);
  --accent: #1A6BF0;
  --accent-soft: rgba(26, 107, 240, .10);
  --cta-bg: #1A6BF0;
  --cta-ink: #FFFFFF;
  --link: #1659CF;
  --warn: #C97812;
  --warn-soft: rgba(201, 120, 18, .13);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0A0D13;
    --card: #151B28;
    --ink: #F3F6FB;
    --sub: #8D96A8;
    --line: rgba(255, 255, 255, .09);
    --accent: #4489FF;
    --accent-soft: rgba(68, 137, 255, .16);
    --cta-bg: #1A6BF0; /* stays the light accent: white on #4489FF is 3.35:1 */
    --cta-ink: #FFFFFF;
    --link: #4489FF;
    --warn: #F0A03C;
    --warn-soft: rgba(240, 160, 60, .16);
  }
}

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

html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Type scale: exactly four sizes (0.875 / 1 / 1.5 / 2.5 rem), two weights (400 / 800). */
h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 800;
  margin: 0;
  overflow-wrap: anywhere;
}

h1 {
  font-size: 2.5rem;
  line-height: 1.1;
  letter-spacing: -0.04em;
}

h2 {
  font-size: 1.5rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h3 {
  font-size: 1rem;
  line-height: 1.2;
}

p,
ul,
ol {
  margin: 0 0 var(--sp-md);
}

strong {
  font-weight: 800;
}

a {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

a:hover,
a:focus-visible {
  text-decoration-thickness: 2px;
}

a:visited {
  color: var(--link);
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: inherit;
}

/* ---------- Skip link ---------- */
.skip {
  position: absolute;
  left: var(--sp-gutter);
  top: var(--sp-sm);
  padding: var(--sp-sm) var(--sp-md);
  background: var(--card);
  color: var(--link);
  border-radius: var(--r-chip);
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  width: 1px;
  height: 1px;
  overflow: hidden;
  white-space: nowrap;
}

.skip:focus-visible {
  clip: auto;
  clip-path: none;
  width: auto;
  height: auto;
  overflow: visible;
  z-index: 1;
}

/* ---------- Header ---------- */
.site-header {
  display: flex;
  align-items: center;
  min-height: 64px;
  padding-left: max(var(--sp-gutter), env(safe-area-inset-left));
  padding-right: max(var(--sp-gutter), env(safe-area-inset-right));
  max-width: 1024px;
  width: 100%;
  margin: 0 auto;
}

body.page .site-header {
  border-bottom: 1px solid var(--line);
  max-width: none;
}

body.landing .site-header {
  justify-content: center;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  font-style: italic;
  text-transform: uppercase;
  letter-spacing: 0;
  line-height: 1.2;
  color: var(--ink);
  text-decoration: none;
  border-radius: var(--r-chip);
}

.wordmark:hover,
.wordmark:focus-visible,
.wordmark:visited {
  color: var(--ink);
  text-decoration: none;
}

.wordmark span {
  color: var(--accent);
}

/* ---------- Main ---------- */
main {
  flex: 1 0 auto;
  width: 100%;
  max-width: 1024px;
  margin: 0 auto;
  padding-left: max(var(--sp-gutter), env(safe-area-inset-left));
  padding-right: max(var(--sp-gutter), env(safe-area-inset-right));
  padding-top: var(--sp-lg);
}

body.landing main {
  padding-top: var(--sp-2xl); /* wordmark-to-hero gap */
}

/* ---------- Card (legal, support, delete-account, 404) ---------- */
.card {
  background: var(--card);
  border-radius: var(--r-card);
  max-width: 680px;
  margin: 0 auto;
  padding: var(--sp-lg);
}

.card > :last-child {
  margin-bottom: 0;
}

.card h1 {
  margin-bottom: var(--sp-md);
}

.card h2 {
  margin-top: var(--sp-xl);
  margin-bottom: var(--sp-sm);
}

.card h3 {
  margin-top: var(--sp-lg);
  margin-bottom: var(--sp-xs);
}

.card p,
.card li {
  overflow-wrap: anywhere;
}

.card ul,
.card ol {
  padding-left: var(--sp-lg);
}

.card li + li {
  margin-top: var(--sp-sm);
}

/* Rendered Markdown (/privacy, /terms) */
.doc h1 + p {
  font-size: 0.875rem;
  color: var(--sub);
  margin-top: calc(-1 * var(--sp-sm));
}

/* FAQ question: semantic h2, visual 16px */
.faq-q {
  font-size: 1rem;
  line-height: 1.2;
  letter-spacing: 0;
}

.lead {
  color: var(--sub);
}

/* Warn callout (only on /delete-account) */
.callout {
  background: var(--warn-soft);
  border-left: 4px solid var(--warn);
  border-radius: var(--r-chip);
  padding: var(--sp-md);
  color: var(--ink);
}

/* ---------- Landing hero ---------- */
.hero {
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
}

.hero h1 {
  text-wrap: balance;
  margin-bottom: var(--sp-sm);
}

.hero .sub {
  color: var(--sub);
  margin-bottom: var(--sp-md);
}

.hero .blurb {
  margin-bottom: var(--sp-xl);
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 52px;
  padding: var(--sp-sm) var(--sp-md);
  background: var(--cta-bg);
  color: var(--cta-ink);
  border: 0;
  border-radius: var(--r-btn);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.2;
  text-decoration: none;
  transition: filter 150ms ease;
}

.cta:visited,
.cta:hover,
.cta:focus-visible {
  color: var(--cta-ink);
  text-decoration: none;
}

@media (hover: hover) {
  .cta:hover {
    filter: brightness(1.08);
  }
}

.cta:active {
  filter: brightness(0.92);
}

.cta-helper {
  margin-top: var(--sp-md);
  margin-bottom: 0;
  font-size: 0.875rem;
  color: var(--sub);
}

/* ---------- Footer ---------- */
.site-footer {
  margin-top: var(--sp-2xl);
  border-top: 1px solid var(--line);
  padding-top: var(--sp-md);
  padding-bottom: calc(var(--sp-xl) + env(safe-area-inset-bottom));
  padding-left: max(var(--sp-gutter), env(safe-area-inset-left));
  padding-right: max(var(--sp-gutter), env(safe-area-inset-right));
  font-size: 0.875rem;
  color: var(--sub);
}

.site-footer .inner {
  max-width: 1024px;
  margin: 0 auto;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0 var(--sp-md);
}

.site-footer nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--link);
  text-decoration: none;
  border-radius: var(--r-chip);
}

.site-footer nav a:hover,
.site-footer nav a:focus-visible {
  text-decoration: underline;
  text-decoration-thickness: 2px;
}

@media (hover: none) {
  .site-footer nav a {
    text-decoration: underline;
  }
}

.site-footer .fine {
  margin: 0;
  color: var(--sub);
}

body.landing .site-footer nav {
  justify-content: center;
}

body.landing .site-footer .fine {
  text-align: center;
}

/* ---------- Breakpoints ---------- */
@media (min-width: 600px) {
  .site-header,
  main,
  .site-footer {
    padding-left: max(var(--sp-lg), env(safe-area-inset-left));
    padding-right: max(var(--sp-lg), env(safe-area-inset-right));
  }

  .card {
    padding: var(--sp-xl);
  }

  .cta {
    width: auto;
    min-width: 280px;
    padding-inline: var(--sp-xl);
  }
}

@media (min-width: 1024px) {
  body.landing main {
    padding-top: calc(var(--sp-2xl) + var(--sp-3xl));
  }
}

/* ---------- Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    scroll-behavior: auto !important;
  }
}