/*
 * YouFoldr marketing site — shared styles.
 * Built on the canonical design tokens (tokens.css). No hardcoded brand
 * colors, fonts, or radii here beyond layout-local values.
 * Both light and dark are first class. SF Pro only. No red as status.
 */
@import "tokens.css";

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

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}

body {
  margin: 0;
  font-family: var(--yf-font);
  color: var(--yf-text);
  background: var(--yf-bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: var(--yf-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

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

/* ---------- Layout shell ---------- */
.wrap {
  width: 100%;
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: var(--yf-s5);
}

/* ---------- Top nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--yf-glass);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--yf-glass-border);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--yf-s2);
  color: var(--yf-text);
  font: var(--yf-row-title);
  letter-spacing: -0.01em;
}
.brand:hover { text-decoration: none; }
.brand__mark { width: 26px; height: 26px; border-radius: 7px; }
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--yf-s5);
  font: var(--yf-caption);
}
.nav__links a { color: var(--yf-text-2); }
.nav__links a:hover { color: var(--yf-text); text-decoration: none; }
.nav__links a[aria-current="page"] { color: var(--yf-text); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  text-align: center;
  padding-block: clamp(56px, 12vw, 120px) clamp(48px, 9vw, 96px);
  overflow: hidden;
}
/* Warm brand glow behind the mark, drawn from the icon's own tones. */
.hero::before {
  content: "";
  position: absolute;
  top: clamp(20px, 6vw, 64px);
  left: 50%;
  width: min(560px, 82vw);
  aspect-ratio: 1;
  transform: translateX(-50%);
  background:
    radial-gradient(closest-side,
      color-mix(in srgb, var(--yf-yellow) 55%, transparent),
      transparent 72%);
  filter: blur(8px);
  opacity: .55;
  z-index: 0;
  pointer-events: none;
}
.hero > * { position: relative; z-index: 1; }

.hero__mark {
  width: clamp(120px, 24vw, 184px);
  height: auto;
  margin-inline: auto;
  margin-bottom: var(--yf-s6);
  border-radius: 26%;               /* app icon squircle */
  box-shadow: 0 22px 50px rgba(235, 65, 103, .30),
              inset 0 0 0 1px var(--yf-glass-border);
  animation: floaty 7s ease-in-out infinite;
}
@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@media (prefers-reduced-motion: reduce) {
  .hero__mark { animation: none; }
}

.hero__title {
  margin: 0 auto var(--yf-s4);
  max-width: 15ch;
  font-weight: 700;
  font-size: clamp(38px, 7vw, 68px);
  line-height: 1.03;
  letter-spacing: -0.035em;
}
.hero__sub {
  margin: 0 auto;
  max-width: 46ch;
  color: var(--yf-text-2);
  font-size: clamp(17px, 2.4vw, 21px);
  line-height: 1.45;
}

.hero__cta {
  margin-top: var(--yf-s7);
  display: inline-flex;
  align-items: center;
  gap: var(--yf-s2);
  padding: 13px 22px;
  border-radius: var(--yf-r-pill);
  background: var(--yf-text);
  color: var(--yf-surface);
  font: var(--yf-row-title);
  box-shadow: var(--yf-shadow-float);
  transition: transform .18s ease;
}
.hero__cta:hover { text-decoration: none; transform: translateY(-2px); }
.hero__cta svg { width: 18px; height: 18px; fill: currentColor; }
.hero__note {
  margin-top: var(--yf-s3);
  color: var(--yf-text-3);
  font: var(--yf-caption);
}

/* ---------- Features ---------- */
.features {
  padding-block: clamp(40px, 8vw, 88px);
}
.features__grid {
  display: grid;
  gap: var(--yf-s4);
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .features__grid {
    grid-template-columns: 1.15fr 1fr 1fr;
    align-items: start;
  }
}
.feature {
  background: var(--yf-surface);
  border-radius: var(--yf-r-card);
  padding: var(--yf-s6);
  box-shadow: var(--yf-shadow-card);
}
/* The hero feature reads first: taller, warm gradient, larger heading. */
.feature--lead {
  background:
    linear-gradient(150deg,
      color-mix(in srgb, var(--yf-salmon) 16%, var(--yf-surface)),
      var(--yf-surface) 62%);
}
@media (min-width: 720px) {
  .feature--lead { padding-block: var(--yf-s8); }
}
.feature__eyebrow {
  display: inline-block;
  margin-bottom: var(--yf-s3);
  width: 40px;
  height: 40px;
  border-radius: var(--yf-r-tile);
  background: var(--yf-accent-soft);
  color: var(--yf-accent);
}
.feature__icon {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border-radius: var(--yf-r-tile);
  background: var(--yf-accent-soft);
  margin-bottom: var(--yf-s4);
}
.feature__icon svg { width: 22px; height: 22px; stroke: var(--yf-accent); fill: none; stroke-width: 1.9; }
.feature--lead .feature__icon {
  background: color-mix(in srgb, var(--yf-pink) 20%, var(--yf-surface));
}
.feature--lead .feature__icon svg { stroke: var(--yf-pink); }
.feature h3 {
  margin: 0 0 var(--yf-s2);
  font-weight: 600;
  font-size: 20px;
  letter-spacing: -0.02em;
}
.feature--lead h3 { font-size: clamp(22px, 3vw, 27px); }
.feature p {
  margin: 0;
  color: var(--yf-text-2);
  font-size: 15.5px;
  line-height: 1.5;
}

/* ---------- Privacy strip ---------- */
.privacy {
  padding-block: clamp(40px, 8vw, 88px);
}
.privacy__card {
  background: var(--yf-surface);
  border-radius: calc(var(--yf-r-card) + 6px);
  padding: clamp(28px, 5vw, 56px);
  box-shadow: var(--yf-shadow-card);
  display: grid;
  gap: var(--yf-s6);
}
@media (min-width: 800px) {
  .privacy__card { grid-template-columns: 0.9fr 1.1fr; align-items: center; }
}
.privacy__lead h2 {
  margin: 0 0 var(--yf-s3);
  font-weight: 700;
  font-size: clamp(26px, 4vw, 36px);
  letter-spacing: -0.03em;
  line-height: 1.1;
}
.privacy__lead p {
  margin: 0;
  color: var(--yf-text-2);
  font-size: 16.5px;
  line-height: 1.5;
  max-width: 40ch;
}
.privacy__list {
  list-style: none;
  margin: 0; padding: 0;
  display: grid;
  gap: var(--yf-s3);
}
.privacy__list li {
  display: flex;
  gap: var(--yf-s3);
  align-items: flex-start;
  font-size: 15.5px;
  line-height: 1.45;
}
.privacy__list strong { font-weight: 600; }
.privacy__list .tick {
  flex: none;
  width: 22px; height: 22px;
  margin-top: 1px;
  display: grid; place-items: center;
  border-radius: var(--yf-r-pill);
  background: color-mix(in srgb, var(--yf-success) 18%, transparent);
}
.privacy__list .tick svg { width: 13px; height: 13px; stroke: var(--yf-success); fill: none; stroke-width: 2.4; }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--yf-hairline);
  padding-block: var(--yf-s7);
  margin-top: var(--yf-s6);
}
.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--yf-s4);
}
.footer__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--yf-s2);
  color: var(--yf-text-2);
  font: var(--yf-caption);
}
.footer__brand img { width: 20px; height: 20px; border-radius: 6px; }
.footer__links {
  display: flex;
  gap: var(--yf-s5);
  font: var(--yf-caption);
}
.footer__links a { color: var(--yf-text-2); }
.footer__links a:hover { color: var(--yf-text); text-decoration: none; }
.footer__copy { color: var(--yf-text-3); font: var(--yf-caption); }

/* ---------- Legal document pages ---------- */
.legal {
  padding-block: clamp(40px, 7vw, 72px) clamp(48px, 8vw, 88px);
}
.legal__head { max-width: 68ch; margin-bottom: var(--yf-s7); }
.legal__head h1 {
  margin: 0 0 var(--yf-s3);
  font-weight: 700;
  font-size: clamp(32px, 5vw, 46px);
  letter-spacing: -0.03em;
  line-height: 1.05;
}
.legal__meta { color: var(--yf-text-2); font: var(--yf-caption); }
.legal__note {
  margin-top: var(--yf-s5);
  padding: var(--yf-s4) var(--yf-s5);
  background: var(--yf-accent-soft);
  border-radius: var(--yf-r-field);
  color: var(--yf-text);
  font-size: 14px;
  line-height: 1.5;
}
.legal__body {
  max-width: 68ch;
  font-size: 16.5px;
  line-height: 1.62;
  color: var(--yf-text);
}
.legal__body h2 {
  margin: var(--yf-s8) 0 var(--yf-s3);
  font-weight: 700;
  font-size: 23px;
  letter-spacing: -0.02em;
}
.legal__body h3 {
  margin: var(--yf-s6) 0 var(--yf-s2);
  font-weight: 600;
  font-size: 18px;
}
.legal__body p { margin: 0 0 var(--yf-s4); color: var(--yf-text); }
.legal__body ul { margin: 0 0 var(--yf-s4); padding-left: var(--yf-s5); }
.legal__body li { margin-bottom: var(--yf-s2); }
.legal__body a { text-decoration: underline; }
.legal__toc {
  margin: 0 0 var(--yf-s7);
  padding: var(--yf-s5);
  background: var(--yf-surface);
  border-radius: var(--yf-r-card);
  box-shadow: var(--yf-shadow-card);
  max-width: 68ch;
}
.legal__toc h2 {
  margin: 0 0 var(--yf-s3);
  font-weight: 600;
  font-size: 14px;
  color: var(--yf-text-2);
}
.legal__toc ol {
  margin: 0; padding-left: var(--yf-s5);
  columns: 2;
  column-gap: var(--yf-s6);
  font-size: 15px;
}
@media (max-width: 560px) { .legal__toc ol { columns: 1; } }
.legal__toc li { margin-bottom: var(--yf-s2); }