/* Todo Buttons marketing site — its own playful "sticker" brand (matching the
   app), with a Bright Brain Games company footer. Standalone static CSS; no
   dependency on the app bundle. */

:root {
  --ink: #12224f;
  --bg: #eaf1ff;
  --surface: #ffffff;
  --blue: #8fbaff;
  --green: #8ef0b6;
  --red: #ffa3a3;
  --yellow: #ffd569;
  --purple: #c9a9ff;
  --cyan: #8be6f5;
  --pink: #ffb0e6;
  --orange: #ffc07a;
  --primary: #2563eb;
  --muted: #55618a;
  --border-w: 3px;
  --radius: 18px;
  --radius-pill: 999px;
  --shadow: 6px 6px 0 var(--ink);
  --shadow-sm: 3px 3px 0 var(--ink);
  --maxw: 1120px;
}

* { box-sizing: border-box; }

html, body { margin: 0; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: 'Nunito', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-size: 18px;
  line-height: 1.55;
  font-weight: 600;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: 'Fredoka', 'Nunito', system-ui, sans-serif;
  line-height: 1.1;
  margin: 0 0 0.4em;
  letter-spacing: -0.01em;
}

a { color: var(--primary); }

img { max-width: 100%; display: block; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: #fff;
  padding: 10px 16px;
  border-radius: 0 0 var(--radius) 0;
  z-index: 100;
}
.skip-link:focus { left: 0; }

/* ---- Buttons (candy) ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 50px;
  padding: 12px 22px;
  border: var(--border-w) solid var(--ink);
  border-radius: var(--radius-pill);
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-weight: 800;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: transform 0.08s ease, box-shadow 0.08s ease;
}
.btn:hover { transform: translate(-1px, -1px); box-shadow: 5px 5px 0 var(--ink); }
.btn:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--ink); }
.btn--primary { background: var(--blue); }
.btn--accent { background: var(--yellow); }
.btn--ghost { background: transparent; box-shadow: none; }
.btn--lg { min-height: 58px; padding: 14px 30px; font-size: 1.05rem; }

:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; border-radius: 6px; }

/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(234, 241, 255, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: var(--border-w) solid var(--ink);
}
.site-header__inner {
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 68px;
}
.site-header__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Fredoka', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--ink);
  text-decoration: none;
}
.site-header__brand img { height: 34px; width: auto; }
.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-left: auto;
}
.site-nav a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
}
.site-nav a:hover { color: var(--primary); }
.site-header__toggle {
  display: none;
  margin-left: auto;
  width: 46px;
  height: 46px;
  border: var(--border-w) solid var(--ink);
  border-radius: 12px;
  background: var(--surface);
  cursor: pointer;
}

/* ---- Hero ---- */
.hero {
  padding: 72px 0 40px;
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
.hero__lead {
  font-size: 1.2rem;
  color: var(--ink);
  max-width: 34ch;
  margin: 0 0 26px;
}
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; }
.hero__note { margin-top: 16px; color: var(--muted); font-size: 0.95rem; }
.eyebrow {
  display: inline-block;
  background: var(--purple);
  border: var(--border-w) solid var(--ink);
  border-radius: var(--radius-pill);
  padding: 4px 14px;
  font-weight: 800;
  font-size: 0.85rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 18px;
}

/* Hero app mockup (CSS-drawn sample buttons) */
.mock {
  border: var(--border-w) solid var(--ink);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 20px;
  transform: rotate(-1.5deg);
}
.mock__title { font-family: 'Fredoka', sans-serif; font-weight: 700; margin: 4px 6px 14px; }
.mock__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: var(--border-w) solid var(--ink);
  border-radius: 14px;
  padding: 12px 16px;
  margin-bottom: 12px;
  font-weight: 800;
  box-shadow: var(--shadow-sm);
}
.mock__row .tick { font-size: 1.1rem; }
.mock__row--done { opacity: 0.7; text-decoration: line-through; }

/* ---- Sections ---- */
.section { padding: 56px 0; }
.section__head { text-align: center; max-width: 44ch; margin: 0 auto 40px; }
.section__head h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
.section__head p { color: var(--muted); font-size: 1.1rem; }

/* Feature cards */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.card {
  border: var(--border-w) solid var(--ink);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 24px;
}
.card__emoji {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border: var(--border-w) solid var(--ink);
  border-radius: 14px;
  font-size: 1.5rem;
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
}
.card h3 { font-size: 1.25rem; }
.card p { margin: 0; color: var(--muted); }
.card--blue .card__emoji { background: var(--blue); }
.card--green .card__emoji { background: var(--green); }
.card--yellow .card__emoji { background: var(--yellow); }
.card--purple .card__emoji { background: var(--purple); }
.card--pink .card__emoji { background: var(--pink); }
.card--orange .card__emoji { background: var(--orange); }

/* CTA band */
.cta-band { text-align: center; }
.cta-band__box {
  border: var(--border-w) solid var(--ink);
  border-radius: 28px;
  background: var(--green);
  box-shadow: var(--shadow);
  padding: 48px 24px;
}
.cta-band h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
.cta-band p { color: var(--ink); max-width: 46ch; margin: 0 auto 24px; }

/* ---- Pricing ---- */
.plans {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  align-items: stretch;
}
.plan {
  display: flex;
  flex-direction: column;
  border: var(--border-w) solid var(--ink);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 24px 20px;
}
.plan--featured { background: var(--yellow); }
.plan__name { font-family: 'Fredoka', sans-serif; font-weight: 700; font-size: 1.3rem; }
.plan__price { font-size: 1.9rem; font-weight: 900; margin: 6px 0 2px; }
.plan__price small { font-size: 0.95rem; font-weight: 700; color: var(--muted); }
.plan__yr { color: var(--muted); font-size: 0.9rem; margin-bottom: 14px; }
.plan__list { list-style: none; padding: 0; margin: 0 0 20px; }
.plan__list li { padding: 6px 0 6px 26px; position: relative; }
.plan__list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  font-weight: 900;
  color: var(--primary);
}
.plan .btn { margin-top: auto; }
.pricing-note { text-align: center; color: var(--muted); margin-top: 22px; }

/* ---- Footer (Bright Brain Games) ---- */
.site-footer {
  border-top: var(--border-w) solid var(--ink);
  background: var(--surface);
  margin-top: 60px;
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 30px;
  padding: 44px 20px;
}
.site-footer__col h4 { font-family: 'Fredoka', sans-serif; margin: 0 0 12px; }
.site-footer__col ul { list-style: none; padding: 0; margin: 0; }
.site-footer__col li { margin-bottom: 8px; }
.site-footer__col a { color: var(--ink); text-decoration: none; }
.site-footer__col a:hover { color: var(--primary); }
.site-footer__brand { display: flex; align-items: center; gap: 10px; font-family: 'Fredoka', sans-serif; font-weight: 700; font-size: 1.2rem; margin-bottom: 10px; }
.site-footer__brand img { height: 30px; }
.site-footer__muted { color: var(--muted); font-size: 0.95rem; }
.site-footer__bottom {
  border-top: 2px solid rgba(18, 34, 79, 0.12);
  padding: 16px 20px;
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; }
  .mock { max-width: 420px; margin: 0 auto; }
  .cards { grid-template-columns: 1fr 1fr; }
  .plans { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  body { font-size: 17px; }
  .site-nav { display: none; }
  .site-header__toggle { display: block; }
  .site-nav.is-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: var(--border-w) solid var(--ink);
    padding: 16px 20px;
    gap: 14px;
  }
  .cards { grid-template-columns: 1fr; }
  .plans { grid-template-columns: 1fr; }
  .site-footer__grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .btn, .mock { transition: none; transform: none; }
}