/* Shelfbound — design tokens live in DESIGN.md. Keep this file in sync with it. */
/* Mobile-first: base rules below target mobile; the single min-width: 45rem
   (720px) query at the bottom steps everything up for desktop. */

:root {
  /* Colors */
  --color-bg-main: #5C3317;
  --color-bg-dark: #3B2314;
  --color-teal: #B0EBEC;
  --color-coral: #E0977A;
  --color-cream: #F5EAD8;
  --color-cream-muted: rgba(245, 234, 216, 0.72);

  /* Typography */
  --font-display: "Alfa Slab One", serif;
  --font-body: "Work Sans", sans-serif;

  /* Spacing (mobile) */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.25rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;

  /* Layout */
  --content-max: 47.5rem;
}

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

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

body {
  margin: 0;
  background-color: var(--color-bg-main);
  color: var(--color-cream);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.15;
  margin: 0;
}

p, ul {
  margin: 0;
}

ul {
  padding: 0;
  list-style: none;
}

a, button {
  font-family: inherit;
  color: inherit;
}

button {
  background: none;
  border: none;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-teal);
  outline-offset: 3px;
  border-radius: 4px;
}

.accent {
  color: var(--color-teal);
}

.accent-coral {
  color: var(--color-coral);
}

/* Eyebrow */

.eyebrow {
  font-weight: 700;
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.eyebrow--coral {
  color: var(--color-coral);
}

.eyebrow--teal {
  color: var(--color-teal);
}

/* Site header */

.site-header {
  padding: var(--space-md);
}

.site-header__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.wordmark {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.02em;
  color: var(--color-teal);
  margin: 0;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  background-color: var(--color-teal);
  color: var(--color-bg-dark);
  font-weight: 700;
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
}

.status-pill__dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background-color: var(--color-bg-dark);
  animation: pulse 1.8s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.45;
    transform: scale(0.8);
  }
}

@media (prefers-reduced-motion: reduce) {
  .status-pill__dot {
    animation: none;
  }
}

/* Hero */

.hero {
  padding: var(--space-xl) var(--space-md) var(--space-lg);
}

.hero__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  text-align: center;
}

.hero__headline {
  font-size: 2.5rem; /* 40px mobile → 56px desktop */
  color: var(--color-cream);
  margin-bottom: var(--space-sm);
}

.hero__subhead {
  font-family: var(--font-body);
  font-style: italic;
  font-weight: 500;
  font-size: 1.125rem;
  color: var(--color-cream-muted);
  margin-bottom: var(--space-md);
}

.hero__body {
  font-size: 1rem;
  color: var(--color-cream-muted);
  max-width: 34rem;
  margin: 0 auto;
}

/* Feature grid */

.features {
  padding: var(--space-lg) var(--space-md);
}

.features__grid {
  max-width: var(--content-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg) var(--space-md);
}

.feature-card__title {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-cream);
  line-height: 1.3;
  margin-bottom: var(--space-xs);
}

.feature-card__body {
  font-size: 1rem;
  color: var(--color-cream-muted);
}

/* Philosophy band */

.philosophy {
  background-color: var(--color-bg-dark);
  padding: var(--space-xl) var(--space-md);
}

.philosophy__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  text-align: center;
}

.philosophy .eyebrow {
  text-align: center;
}

.philosophy__text {
  font-size: 1.125rem;
  font-style: italic;
  font-weight: 500;
  color: var(--color-coral);
  line-height: 1.5;
}

.philosophy__text strong {
  font-style: normal;
  font-weight: 700;
  color: var(--color-cream);
}

/* Reading life list */

.reading-life {
  padding: var(--space-xl) var(--space-md);
}

.reading-life__inner {
  max-width: var(--content-max);
  margin: 0 auto;
}

.reading-life__title {
  font-size: 1.75rem; /* 28px mobile → 40px desktop */
  margin-bottom: var(--space-lg);
}

.reading-life__list {
  border-bottom: 1px solid rgba(245, 234, 216, 0.15);
}

.reading-life__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xs);
  padding: var(--space-md) 0;
  border-top: 1px solid rgba(245, 234, 216, 0.15);
}

.reading-life__label {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-teal);
}

.reading-life__desc {
  font-size: 1rem;
  color: var(--color-cream-muted);
  max-width: 40rem;
}

/* Library card section */

.card-section {
  padding: var(--space-xl) var(--space-md);
}

.card-section__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  text-align: center;
}

.card-section__title {
  font-size: 1.75rem; /* 28px mobile → 40px desktop */
  margin-bottom: var(--space-lg);
}

.library-card {
  background-color: var(--color-bg-dark);
  border: 1px solid rgba(245, 234, 216, 0.15);
  border-radius: 1rem;
  padding: var(--space-md);
  max-width: 24rem;
  margin: 0 auto;
  text-align: left;
}

.library-card__top {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.library-card__avatar {
  flex: none;
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  background-color: var(--color-teal);
  color: var(--color-bg-dark);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1.125rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.library-card__name {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-cream);
}

.library-card__since {
  font-size: 0.8125rem;
  color: var(--color-cream-muted);
  margin-top: 0.15rem;
}

.library-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.library-card__tag {
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  background-color: rgba(176, 235, 236, 0.15);
  border: 1px solid rgba(176, 235, 236, 0.4);
  color: var(--color-teal);
  font-size: 0.8125rem;
  font-weight: 600;
}

/* Final CTA */

.final-cta {
  padding: var(--space-xl) var(--space-md);
}

.final-cta__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  text-align: center;
}

.final-cta__headline {
  font-size: 2.125rem; /* 34px mobile → 38px desktop */
  color: var(--color-cream);
  margin-bottom: var(--space-sm);
}

.final-cta__subtext {
  font-family: var(--font-body);
  font-style: italic;
  font-weight: 500;
  font-size: 1.0625rem;
  color: var(--color-cream-muted);
  margin-bottom: var(--space-lg);
}

.store-badges {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.25rem;
  min-height: 2.75rem; /* 44px minimum touch target */
  min-width: 2.75rem;
  border-radius: 0.65rem;
  border: 1px solid rgba(245, 234, 216, 0.3);
  text-decoration: none;
  text-align: left;
}

/* Inert until a store URL is set in scripts/constants.js (see main.js) */
.store-badge[aria-disabled="true"] {
  cursor: default;
}

.store-badge__icon {
  width: 1.5rem;
  height: 1.5rem;
  flex: none;
  color: var(--color-cream);
}

.store-badge__text {
  display: flex;
  flex-direction: column;
}

.store-badge__eyebrow {
  font-size: 0.6875rem;
  color: var(--color-cream-muted);
}

.store-badge__name {
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-cream);
}

/* Site footer */

.site-footer {
  padding: var(--space-md);
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-cream-muted);
  border-top: 1px solid rgba(245, 234, 216, 0.1);
}

/* ==========================================================================
   Desktop — single breakpoint at 45rem (720px)
   ========================================================================== */

@media (min-width: 45rem) {
  :root {
    --space-md: 2rem;
    --space-lg: 3.5rem;
    --space-xl: 6rem;
  }

  .wordmark {
    font-size: 1.375rem;
  }

  .hero__headline {
    font-size: 3.5rem; /* 56px */
  }

  .hero__subhead {
    font-size: 1.25rem;
  }

  .hero__body {
    font-size: 1.0625rem;
  }

  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .feature-card__title {
    font-size: 1.375rem;
  }

  .philosophy__text {
    font-size: 1.375rem;
  }

  .reading-life__title,
  .card-section__title {
    font-size: 2.5rem; /* 40px */
  }

  .reading-life__row {
    grid-template-columns: 14rem 1fr;
    align-items: start;
  }

  .reading-life__label {
    font-size: 1.375rem;
  }

  .library-card__top {
    flex-direction: row;
    align-items: center;
  }

  .final-cta__headline {
    font-size: 2.375rem; /* 38px */
  }

  .final-cta__subtext {
    font-size: 1.125rem;
  }
}