/* ============================================================
   BLACKWOOD PRESS — Design System
   ============================================================ */

/* --- Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;1,400;1,500&family=Source+Sans+3:ital,wght@0,300;0,400;0,600;1,400&display=swap');

/* --- Custom Properties --- */
:root {
  /* Page */
  --bg:          #FAFAF7;
  --bg-offset:   #F2F1EC;
  --bg-dark:     #1E1E1C;
  --bg-dark-2:   #2A2A28;

  /* Text */
  --ink:         #1A1A18;
  --ink-2:       #5C5B56;
  --ink-3:       #8E8D87;
  --ink-on-dark: #E8E7E2;
  --ink-on-dark-2: #A09F98;

  /* Borders & Rules */
  --rule:        #E0DFD9;
  --rule-strong:  #C8C7C1;

  /* Section Accents */
  --accent-bs:   #7B5EA7;
  --accent-rt:   #2D7D5F;
  --accent-tna:  #B8862B;

  /* Shared Accent (logo sprout gold) */
  --gold:        #9A7B3C;

  /* Typography */
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'Source Sans 3', -apple-system, sans-serif;

  /* Spacing scale (4px base) */
  --sp-1: 0.25rem;
  --sp-2: 0.5rem;
  --sp-3: 0.75rem;
  --sp-4: 1rem;
  --sp-6: 1.5rem;
  --sp-8: 2rem;
  --sp-12: 3rem;
  --sp-16: 4rem;
  --sp-24: 6rem;
  --sp-32: 8rem;

  /* Layout */
  --max-w: 1120px;
  --max-w-narrow: 720px;
}


/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-weight: 400;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }


/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.01em;
}

h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; }

.eyebrow {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.tagline {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  color: var(--ink-2);
}


/* --- Layout --- */
.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--sp-6);
}

.wrap--narrow {
  max-width: var(--max-w-narrow);
}

section {
  padding: var(--sp-16) 0;
}

section + section {
  border-top: 1px solid var(--rule);
}


/* --- Navigation --- */
.site-nav {
  background: var(--bg-dark);
  color: var(--ink-on-dark);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-nav__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--sp-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 3.5rem;
}

.site-nav__brand {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--ink-on-dark);
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.site-nav__brand img {
  height: 28px;
  width: auto;
}

.site-nav__links {
  display: flex;
  gap: var(--sp-6);
  list-style: none;
  align-items: center;
}

.site-nav__links a {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--ink-on-dark-2);
  transition: color 0.2s;
  letter-spacing: 0.02em;
}

.site-nav__links a:hover,
.site-nav__links a.active {
  color: var(--ink-on-dark);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  color: var(--ink-on-dark);
  font-size: 1.5rem;
  line-height: 1;
}

@media (max-width: 768px) {
  .nav-toggle { display: block; }

  .site-nav__links {
    display: none;
    position: absolute;
    top: 3.5rem;
    left: 0;
    right: 0;
    background: var(--bg-dark);
    flex-direction: column;
    padding: var(--sp-4) var(--sp-6) var(--sp-6);
    gap: var(--sp-3);
    border-top: 1px solid rgba(255,255,255,0.08);
  }

  .site-nav__links.open {
    display: flex;
  }

  .site-nav__links a {
    font-size: 1rem;
    padding: var(--sp-2) 0;
  }
}


/* --- Hero --- */
.hero {
  text-align: center;
  padding: var(--sp-24) 0 var(--sp-16);
  border-bottom: none;
}

.hero__mark {
  width: 96px;
  height: auto;
  margin: 0 auto var(--sp-8);
  opacity: 0.9;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 500;
  letter-spacing: 0.1em;
  margin-bottom: var(--sp-3);
}

.hero__tagline {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--ink-2);
  margin-bottom: var(--sp-12);
}

.hero__rule {
  width: 40px;
  height: 1px;
  background: var(--rule-strong);
  margin: 0 auto;
}


/* --- Series Cards --- */
.series-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
}

@media (max-width: 768px) {
  .series-grid {
    grid-template-columns: 1fr;
    gap: var(--sp-4);
  }
}

.series-card {
  background: var(--bg);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--card-accent, var(--rule-strong));
  padding: var(--sp-8) var(--sp-6);
  transition: border-color 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
}

.series-card:hover {
  border-left-color: var(--card-accent, var(--ink-3));
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}

.series-card__eyebrow {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--card-accent, var(--ink-3));
  margin-bottom: var(--sp-3);
}

.series-card__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  margin-bottom: var(--sp-3);
}

.series-card__desc {
  color: var(--ink-2);
  font-size: 0.9375rem;
  flex: 1;
  margin-bottom: var(--sp-6);
}

.series-card__link {
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--card-accent, var(--ink));
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  transition: gap 0.2s;
}

.series-card__link:hover {
  gap: var(--sp-3);
}

.series-card__link::after {
  content: '\2192';
}


/* --- Featured Release --- */
.featured {
  background: var(--bg-offset);
  border-top: 1px solid var(--rule);
}

.featured__inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--sp-12);
  align-items: center;
}

@media (max-width: 768px) {
  .featured__inner {
    grid-template-columns: 1fr;
    gap: var(--sp-6);
    text-align: center;
  }
}

.featured__cover {
  width: 220px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.12), 0 1px 4px rgba(0,0,0,0.08);
}

@media (max-width: 768px) {
  .featured__cover {
    margin: 0 auto;
    width: 180px;
  }
}

.featured__meta {
  max-width: 520px;
}

.featured__series {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-bs);
  margin-bottom: var(--sp-2);
}

.featured__title {
  margin-bottom: var(--sp-2);
}

.featured__subtitle {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--ink-2);
  font-size: 1.125rem;
  margin-bottom: var(--sp-6);
}

.featured__desc {
  color: var(--ink-2);
  font-size: 0.9375rem;
  margin-bottom: var(--sp-6);
  max-width: 480px;
}

.featured__formats {
  display: flex;
  gap: var(--sp-3);
  flex-wrap: wrap;
}


/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-6);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 1px solid transparent;
  transition: all 0.2s;
}

.btn--primary {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}

.btn--primary:hover {
  background: var(--bg-dark-2);
}

.btn--outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--rule-strong);
}

.btn--outline:hover {
  border-color: var(--ink);
}

.btn--sm {
  padding: var(--sp-2) var(--sp-4);
  font-size: 0.8125rem;
}


/* --- About Section --- */
.about-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-12);
  align-items: start;
}

@media (max-width: 768px) {
  .about-row {
    grid-template-columns: 1fr;
    gap: var(--sp-6);
  }
}

.about-row p {
  color: var(--ink-2);
  font-size: 0.9375rem;
  margin-bottom: var(--sp-4);
}

.about-row p:last-child {
  margin-bottom: 0;
}

.about__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-4);
}

.stat {
  border-left: 2px solid var(--rule-strong);
  padding-left: var(--sp-4);
}

.stat__number {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 500;
  line-height: 1.1;
}

.stat__label {
  font-size: 0.8125rem;
  color: var(--ink-3);
}


/* --- Newsletter --- */
.newsletter {
  text-align: center;
  background: var(--bg-offset);
}

.newsletter h2 {
  margin-bottom: var(--sp-2);
}

.newsletter__sub {
  color: var(--ink-2);
  font-size: 0.9375rem;
  margin-bottom: var(--sp-8);
}

.newsletter__form {
  display: flex;
  gap: var(--sp-3);
  max-width: 420px;
  margin: 0 auto;
}

.newsletter__form input[type="email"] {
  flex: 1;
  padding: var(--sp-3) var(--sp-4);
  border: 1px solid var(--rule-strong);
  background: var(--bg);
  font-size: 0.9375rem;
  font-family: var(--font-body);
  color: var(--ink);
}

.newsletter__form input[type="email"]::placeholder {
  color: var(--ink-3);
}

.newsletter__form input[type="email"]:focus {
  outline: none;
  border-color: var(--ink);
}

@media (max-width: 480px) {
  .newsletter__form {
    flex-direction: column;
  }
}


/* --- Book Grid (All Books page) --- */
.book-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--sp-6);
}

.book-card {
  text-align: center;
}

.book-card__cover {
  width: 100%;
  aspect-ratio: 2/3;
  object-fit: cover;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  margin-bottom: var(--sp-3);
  transition: transform 0.2s, box-shadow 0.2s;
}

.book-card:hover .book-card__cover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.14);
}

.book-card__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: var(--sp-1);
}

.book-card__sub {
  font-size: 0.8125rem;
  color: var(--ink-3);
}

.book-card__badge {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: var(--sp-1) var(--sp-3);
  background: var(--bg-offset);
  color: var(--ink-3);
  margin-top: var(--sp-2);
}


/* --- Subseries Group --- */
.subseries {
  margin-bottom: var(--sp-12);
}

.subseries:last-child {
  margin-bottom: 0;
}

.subseries__heading {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding-bottom: var(--sp-3);
  border-bottom: 1px solid var(--rule);
  margin-bottom: var(--sp-6);
}


/* --- Footer --- */
.site-footer {
  background: var(--bg-dark);
  color: var(--ink-on-dark-2);
  padding: var(--sp-12) 0 var(--sp-8);
  font-size: 0.875rem;
}

.footer__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--sp-6);
}

.footer__top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--sp-8);
  padding-bottom: var(--sp-8);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: var(--sp-6);
}

@media (max-width: 768px) {
  .footer__top {
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-6);
  }
}

@media (max-width: 480px) {
  .footer__top {
    grid-template-columns: 1fr;
  }
}

.footer__brand {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--ink-on-dark);
  margin-bottom: var(--sp-2);
}

.footer__tagline {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.9375rem;
  color: var(--ink-on-dark-2);
}

.footer__col-title {
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-on-dark);
  margin-bottom: var(--sp-3);
}

.footer__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.footer__links a {
  color: var(--ink-on-dark-2);
  transition: color 0.2s;
}

.footer__links a:hover {
  color: var(--ink-on-dark);
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8125rem;
  color: var(--ink-on-dark-2);
}

@media (max-width: 480px) {
  .footer__bottom {
    flex-direction: column;
    gap: var(--sp-2);
    text-align: center;
  }
}

.footer__bottom a {
  color: var(--ink-on-dark-2);
  text-decoration: underline;
  text-underline-offset: 2px;
}


/* --- Section divider (sprout motif) --- */
.divider {
  text-align: center;
  padding: var(--sp-4) 0;
  color: var(--rule-strong);
  font-size: 0.875rem;
  letter-spacing: 0.3em;
}


/* --- Utility --- */
.text-center { text-align: center; }
.mt-4 { margin-top: var(--sp-4); }
.mt-8 { margin-top: var(--sp-8); }
.mt-12 { margin-top: var(--sp-12); }
.mb-4 { margin-bottom: var(--sp-4); }
.mb-8 { margin-bottom: var(--sp-8); }
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}