/* ---------------------------------------------------------------
   Circula Livro — landing / boas-vindas (MVP)
   Mobile-first, paleta da identidade visual (CLAUDE.md).
--------------------------------------------------------------- */
:root {
  --pink: #EE57CF;
  --pink-600: #d63bb6;
  --lime: #CFEE57;
  --sky: #57CFEE;
  --ink: #23262F;
  --ink-soft: #5A6072;
  --line: #E7E8EE;
  --bg: #F6F7FB;
  --white: #FFFFFF;
  --radius: 16px;
  --shadow: 0 10px 30px rgba(35, 38, 47, .08);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

.landing {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.landing__hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px 22px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.landing__hero::before {
  content: "";
  position: absolute;
  inset: -40% -20% auto;
  height: 420px;
  background: radial-gradient(circle at 50% 0%, rgba(238, 87, 207, .18), transparent 65%);
  pointer-events: none;
}

.landing__brand {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}

.landing__mark {
  width: 72px;
  height: 72px;
  border-radius: 22px;
  background: linear-gradient(135deg, var(--pink), var(--sky));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 34px;
  font-weight: 800;
  box-shadow: 0 12px 24px rgba(238, 87, 207, .32);
}

.landing__name {
  font-weight: 800;
  font-size: 24px;
  letter-spacing: -.4px;
}

.landing__name span { color: var(--pink); }

.landing__title {
  position: relative;
  font-size: clamp(28px, 7vw, 40px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.6px;
  margin: 0 0 14px;
  max-width: 18ch;
}

.landing__subtitle {
  position: relative;
  font-size: 16px;
  line-height: 1.5;
  color: var(--ink-soft);
  margin: 0 0 28px;
  max-width: 34ch;
}

.landing__tagline {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--lime);
  color: #4d5a10;
  font-size: 13px;
  font-weight: 700;
  padding: 10px 16px;
  border-radius: 999px;
  margin-bottom: 32px;
}

.landing__actions {
  position: relative;
  width: 100%;
  max-width: 360px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.landing__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  border-radius: 14px;
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  transition: transform .15s ease, box-shadow .15s ease;
}

.landing__btn--primary {
  background: var(--pink);
  color: #fff;
  box-shadow: 0 10px 20px rgba(238, 87, 207, .30);
}

.landing__btn--secondary {
  background: var(--white);
  color: var(--ink);
  border: 1.5px solid var(--line);
}

.landing__features {
  position: relative;
  width: 100%;
  max-width: 420px;
  display: grid;
  gap: 12px;
  margin-top: 36px;
  text-align: left;
}

.landing__feature {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: var(--shadow);
}

.landing__feature strong {
  display: block;
  font-size: 14px;
  margin-bottom: 4px;
}

.landing__feature span {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.4;
}

.landing__footer {
  padding: 18px 22px 28px;
  text-align: center;
  font-size: 12px;
  color: var(--ink-soft);
}

@media (min-width: 768px) {
  .landing__hero {
    padding: 48px 32px 56px;
  }

  .landing__features {
    grid-template-columns: repeat(3, 1fr);
    max-width: 900px;
    gap: 16px;
  }

  .landing__feature {
    text-align: center;
  }
}