/* Calen — householdcalendar.com
   One stylesheet for the whole (three-page) marketing + legal site.
   Tokens mirror the app's theme: brand blue #4F9DF5 / #3B82D6. */

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

  --brand: #3b7fc4;
  --brand-strong: #2f6ba9;
  --brand-tint: #eaf2fd;

  --bg: #ffffff;
  --bg-sunk: #f4f7fb;
  --surface: #ffffff;
  --text: #10151c;
  --text-muted: #56616f;
  --border: #e3e9f1;
  --ring: color-mix(in srgb, var(--brand) 55%, transparent);
  --shadow: 0 1px 2px rgb(16 21 28 / 0.05), 0 12px 32px -12px rgb(16 21 28 / 0.16);

  /* fluid type — 320px → 1240px viewports */
  --step--1: clamp(0.86rem, 0.83rem + 0.14vw, 0.94rem);
  --step-0: clamp(1rem, 0.96rem + 0.2vw, 1.12rem);
  --step-1: clamp(1.2rem, 1.12rem + 0.4vw, 1.45rem);
  --step-2: clamp(1.5rem, 1.34rem + 0.8vw, 2rem);
  --step-3: clamp(2rem, 1.6rem + 2vw, 3.25rem);

  --gutter: clamp(1.25rem, 5vw, 3rem);
  --page: 72rem;
  --measure: 42rem;
  --radius: 18px;
  --radius-sm: 12px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --brand: #6aa9ee;
    --brand-strong: #8bc0f8;
    --brand-tint: #16263a;

    --bg: #0d1117;
    --bg-sunk: #11161e;
    --surface: #151b24;
    --text: #eceef1;
    --text-muted: #9aa5b3;
    --border: #232b36;
    --shadow: 0 1px 2px rgb(0 0 0 / 0.4), 0 12px 32px -12px rgb(0 0 0 / 0.6);
  }
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: var(--step-0);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; text-wrap: balance; margin: 0; }
h1 { font-size: var(--step-3); }
h2 { font-size: var(--step-2); }
h3 { font-size: var(--step-1); letter-spacing: -0.01em; }
p { margin: 0; text-wrap: pretty; }
img, svg { max-inline-size: 100%; block-size: auto; }

a { color: var(--brand); text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { color: var(--brand-strong); }

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  inset-inline-start: var(--gutter);
  inset-block-start: -4rem;
  z-index: 10;
  padding: 0.6rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: inset-block-start 150ms ease;
}
.skip-link:focus { inset-block-start: 0.75rem; }

/* ---------- layout ---------- */
.wrap {
  inline-size: min(100% - var(--gutter) * 2, var(--page));
  margin-inline: auto;
}
.section { padding-block: clamp(3rem, 8vw, 6rem); }
.section--sunk { background: var(--bg-sunk); border-block: 1px solid var(--border); }
.stack > * + * { margin-block-start: var(--flow, 1rem); }
/* Flow overrides live here rather than in a `style="--flow: …"` attribute:
   the site's CSP sets `style-src 'self'`, which blocks inline style attributes
   as well as <style> blocks, so an inline override is silently dropped. */
.stack--flow-md { --flow: 1.25rem; }
.stack--flow-lg { --flow: 1.5rem; }
.prose { max-inline-size: var(--measure); }

/* Same reason — the muted-paragraph override had been inline. */
.muted { color: var(--text-muted); }

/* ---------- site header ---------- */
.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 5;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  border-block-end: 1px solid var(--border);
}
.site-header > .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.5rem;
  min-block-size: 4rem;
  padding-block: 0.5rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 650;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
  margin-inline-end: auto;
}
.brand img { inline-size: 32px; block-size: 32px; border-radius: 8px; }
.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0 1.25rem;
  font-size: var(--step--1);
}
.site-nav a { color: var(--text-muted); text-decoration: none; }
.site-nav a:hover { color: var(--text); }

/* Standalone navigation links carry a 44px target even though the text is
   ~22px tall — a bare text link is a thumb-sized miss on a phone (Apple's
   44pt guidance; WCAG 2.5.8 puts the floor at 24px). Links inside a sentence
   are exempt and stay inline. */
.site-nav a, .footer-links a, .brand, .link-block {
  display: inline-flex;
  align-items: center;
  min-block-size: 44px;
}

/* ---------- hero ---------- */
.hero {
  padding-block: clamp(3rem, 9vw, 6.5rem);
  background:
    radial-gradient(58rem 30rem at 12% -12%, color-mix(in srgb, var(--brand) 13%, transparent), transparent 70%),
    radial-gradient(44rem 26rem at 96% -4%, color-mix(in srgb, var(--brand) 9%, transparent), transparent 66%);
}
.hero-grid {
  display: grid;
  gap: clamp(2.5rem, 6vw, 4rem);
  align-items: center;
}
@media (min-width: 62rem) {
  .hero-grid { grid-template-columns: 1.05fr 0.95fr; }
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  background: var(--brand-tint);
  color: var(--brand-strong);
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.01em;
}
.eyebrow::before {
  content: "";
  inline-size: 0.45rem;
  block-size: 0.45rem;
  border-radius: 50%;
  background: currentColor;
}

.lede { font-size: var(--step-1); color: var(--text-muted); max-inline-size: 34ch; }

.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.25rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: var(--step--1);
  text-decoration: none;
  transition: transform 120ms ease, background-color 120ms ease, border-color 120ms ease;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--brand); color: #fff; }
.btn--primary:hover { background: var(--brand-strong); color: #fff; }
.btn--ghost { border-color: var(--border); background: var(--surface); color: var(--text); }
.btn--ghost:hover { border-color: color-mix(in srgb, var(--brand) 45%, var(--border)); color: var(--text); }

/* decorative month card in the hero */
.mock {
  --cell: clamp(2.1rem, 4.4vw, 2.8rem);
  padding: clamp(1rem, 3vw, 1.5rem);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 6px);
  box-shadow: var(--shadow);
}
.mock-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-block-end: 0.9rem;
}
.mock-head strong { font-size: var(--step-1); letter-spacing: -0.02em; }
.mock-head span { font-size: var(--step--1); color: var(--text-muted); }
.mock-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 2px;
  font-size: 0.7rem;
}
.mock-grid b {
  color: var(--text-muted);
  font-weight: 600;
  text-align: center;
  padding-block-end: 0.35rem;
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.mock-day {
  block-size: var(--cell);
  border-radius: 7px;
  padding: 3px 4px;
  color: var(--text-muted);
  background: color-mix(in srgb, var(--bg-sunk) 70%, transparent);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.mock-day.is-today { background: var(--brand); color: #fff; font-weight: 700; }
.mock-day i { display: block; block-size: 4px; border-radius: 2px; background: var(--brand); opacity: 0.75; }
.mock-day i.alt { background: #f0a33c; }
.mock-day i.alt2 { background: #57b26d; }
.mock-day.is-today i { background: #fff; opacity: 0.9; }

/* ---------- feature cards ---------- */
.cards {
  display: grid;
  gap: 1rem;
  /* six cards: 1 / 2 / 3 columns — never a lopsided 4 + 2 row */
  grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
  margin-block-start: 2.5rem;
}
@media (min-width: 60rem) {
  .cards { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(1.25rem, 3vw, 1.6rem);
}
.card h3 { margin-block: 0.9rem 0.4rem; }
.card p { color: var(--text-muted); font-size: var(--step--1); }
.card-icon {
  display: grid;
  place-items: center;
  inline-size: 2.6rem;
  block-size: 2.6rem;
  border-radius: 12px;
  background: var(--brand-tint);
  color: var(--brand-strong);
}
.card-icon svg { inline-size: 1.35rem; block-size: 1.35rem; }

/* ---------- privacy band ---------- */
.split {
  display: grid;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: start;
}
@media (min-width: 55rem) { .split { grid-template-columns: 1fr 1fr; } }

.checks { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.9rem; }
.checks li {
  display: grid;
  grid-template-columns: 1.4rem 1fr;
  gap: 0.75rem;
  align-items: start;
  font-size: var(--step--1);
  color: var(--text-muted);
}
.checks strong { color: var(--text); font-weight: 600; }
.checks svg { inline-size: 1.15rem; block-size: 1.15rem; color: var(--brand); margin-block-start: 0.18rem; }

/* ---------- FAQ ---------- */
.faq { margin-block-start: 2rem; max-inline-size: var(--measure); }
.faq details {
  border-block-end: 1px solid var(--border);
  padding-block: 1rem;
}
.faq summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  color: var(--text-muted);
  font-weight: 400;
  font-size: 1.35rem;
  line-height: 1;
  transition: transform 150ms ease;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq p { margin-block-start: 0.6rem; color: var(--text-muted); font-size: var(--step--1); }

/* ---------- footer ---------- */
.site-footer {
  border-block-start: 1px solid var(--border);
  padding-block: 2.5rem 3.5rem;
  font-size: var(--step--1);
  color: var(--text-muted);
}
.site-footer > .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  align-items: center;
  justify-content: space-between;
}
.footer-links { display: flex; flex-wrap: wrap; gap: 1.25rem; }
.site-footer a { color: var(--text-muted); text-decoration: none; }
.site-footer a:hover { color: var(--text); text-decoration: underline; }

/* ---------- legal pages ---------- */
.legal { padding-block: clamp(2.5rem, 7vw, 4.5rem) 5rem; }
.legal .wrap { inline-size: min(100% - var(--gutter) * 2, 46rem); }
.legal h2 {
  font-size: var(--step-1);
  margin-block: 2.5rem 0.75rem;
  scroll-margin-block-start: 5rem;
}
.legal p + p { margin-block-start: 0.9rem; }
.legal .meta { color: var(--text-muted); font-size: var(--step--1); margin-block-start: 0.5rem; }
.legal .back {
  display: inline-flex;
  align-items: center;
  min-block-size: 44px;
  margin-block-end: 0.75rem;
  font-size: var(--step--1);
  text-decoration: none;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

@media print {
  .site-header, .site-footer, .skip-link, .back { display: none; }
  body { color: #000; background: #fff; }
  .legal { padding: 0; }
}