/* ============================================================
   Davin Books — davinbooks.com
   Shared stylesheet for all pages
   ============================================================ */

:root {
  --color-bg: #161616;
  --color-bg-alt: #1e1e1e;
  --color-bg-card: #202020;
  --color-border: #383838;
  --color-text: #f2f1ee;
  --color-text-muted: #9c9c9c;
  --color-accent: #c9a961;
  --color-accent-bright: #e0c17d;

  --font-display: "Playfair Display", "Georgia", serif;
  --font-body: "Inter", -apple-system, "Helvetica Neue", Arial, sans-serif;

  --max-width: 1100px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 19px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-accent-bright);
  text-decoration: none;
}

a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-text);
  line-height: 1.25;
}

.eyebrow {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.8rem;
  color: var(--color-accent-bright);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header / Nav ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(12, 13, 17, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--color-border);
}

.nav-wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text);
  text-decoration: none;
}

.brand-logo {
  height: 30px;
  width: auto;
  display: block;
}

.brand .brand-name-accent {
  color: var(--color-accent-bright);
}

.brand:hover {
  text-decoration: none;
  color: var(--color-text);
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 26px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: 0.9rem;
  letter-spacing: 0.02em;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-accent-bright);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: 1.4rem;
  padding: 4px 12px;
  border-radius: 4px;
  cursor: pointer;
}

@media (max-width: 720px) {
  .nav-toggle {
    display: block;
  }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    gap: 0;
    display: none;
  }
  .nav-links.open {
    display: flex;
  }
  .nav-links li {
    border-top: 1px solid var(--color-border);
  }
  .nav-links a {
    display: block;
    padding: 16px 24px;
  }
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  padding: 72px 0 96px;
  border-bottom: none;
  background:
    linear-gradient(180deg, rgba(22, 22, 22, 0.55) 0%, rgba(22, 22, 22, 0.93) 85%, var(--color-bg) 100%),
    url("../images/hero-bg.jpg");
  background-size: cover;
  background-position: center top;
}

.hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 40px;
  background: var(--color-bg);
  clip-path: polygon(0% 100%, 0% 40%, 8% 55%, 18% 30%, 30% 60%, 42% 20%, 55% 50%, 68% 15%, 80% 45%, 92% 25%, 100% 50%, 100% 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

@media (max-width: 820px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
}

.hero h1 {
  font-size: 2.6rem;
  margin: 10px 0 6px;
}

.hero .series-tag {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: 22px;
}

.hero p.lede {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  margin-bottom: 30px;
}

.cta-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 14px 28px;
  border-radius: 3px;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent-bright), var(--color-accent));
  color: #16130a;
  font-weight: 600;
}

.btn-primary:hover {
  filter: brightness(1.08);
  color: #16130a;
}

.btn-secondary {
  border-color: var(--color-border);
  color: var(--color-text);
  background: transparent;
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-bright);
}

/* ---------- Book cover placeholder ---------- */

.cover-frame {
  aspect-ratio: 1402 / 1122;
  max-width: 480px;
  margin: 0 auto;
  border-radius: 4px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 32px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.75);
}

.cover-frame .cover-series {
  font-family: var(--font-display);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent-bright);
  margin-bottom: 18px;
}

.cover-frame .cover-title {
  font-family: var(--font-display);
  font-size: 1.9rem;
  color: var(--color-accent-bright);
  line-height: 1.2;
}

.cover-frame .cover-book {
  margin-top: 22px;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.cover-frame.small {
  max-width: 220px;
}

.cover-frame .cover-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  position: absolute;
  inset: 0;
}

/* ---------- Sections ---------- */

section {
  padding: 72px 0;
  border-bottom: 1px solid var(--color-border);
}

section:last-of-type {
  border-bottom: none;
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 44px;
}

.section-head h2 {
  font-size: 2rem;
  margin: 8px 0 0;
}

.prose {
  max-width: 720px;
  margin: 0 auto;
}

.prose p {
  margin-bottom: 1.2em;
  color: var(--color-text);
}

.prose p.muted {
  color: var(--color-text-muted);
}

/* ---------- Cards / grids ---------- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 820px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
}

.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 28px;
}

.card h3 {
  font-size: 1.15rem;
  margin: 0 0 10px;
  color: var(--color-text);
}

.card p {
  color: var(--color-text-muted);
  font-size: 0.98rem;
  margin: 0;
}

.card.featured {
  background: linear-gradient(160deg, rgba(201, 169, 97, 0.12), var(--color-bg-card));
  border: 1px solid var(--color-accent);
  padding: 36px 28px;
  box-shadow: 0 20px 40px -24px rgba(201, 169, 97, 0.35);
}

@media (min-width: 821px) {
  .card.featured {
    transform: translateY(-6px);
  }
}

.card.featured h3 {
  font-size: 1.3rem;
  color: var(--color-accent-bright);
}

.card.featured .tag {
  color: var(--color-accent-bright);
}

.card .tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 10px;
}

/* ---------- Author block ---------- */

.author-grid {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 48px;
  align-items: start;
}

@media (max-width: 720px) {
  .author-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .author-photo {
    margin: 0 auto;
  }
}

.author-photo {
  width: 100%;
  aspect-ratio: 1066 / 1600;
  border-radius: 10px;
  overflow: hidden;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
}

.author-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.05);
}

/* ---------- Buy links ---------- */

.buy-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 8px;
}

/* ---------- Forms ---------- */

.form-box {
  max-width: 520px;
  margin: 0 auto;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 40px;
}

.form-box label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.form-box input[type="text"],
.form-box input[type="email"],
.form-box textarea {
  width: 100%;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 12px 14px;
  border-radius: 4px;
  margin-bottom: 20px;
}

.form-box textarea {
  min-height: 140px;
  resize: vertical;
}

.form-box input:focus,
.form-box textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form-note {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 14px;
}

/* ---------- Email CTA ---------- */

.email-cta {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 18px 32px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 1.15rem;
  transition: border-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.email-cta:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-bright);
  text-decoration: none;
  transform: translateY(-1px);
}

.email-cta svg {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  color: var(--color-accent-bright);
}

/* ---------- News / blog list ---------- */

.post {
  border-bottom: 1px solid var(--color-border);
  padding: 32px 0;
}

.post:first-child {
  padding-top: 0;
}

.post:last-child {
  border-bottom: none;
}

.post .post-date {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-bright);
}

.post h3 {
  margin: 8px 0 10px;
  font-size: 1.4rem;
}

.post p {
  color: var(--color-text-muted);
  margin: 0;
}

/* ---------- FAQ ---------- */

.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: 22px 0;
}

.faq-item:first-child {
  padding-top: 0;
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-item summary {
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--color-text);
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::before {
  content: "+";
  display: inline-block;
  width: 20px;
  color: var(--color-accent-bright);
  font-family: var(--font-body);
  font-size: 1.2rem;
}

.faq-item[open] summary::before {
  content: "\2013";
}

.faq-item p {
  color: var(--color-text-muted);
  margin: 14px 0 0 20px;
}

/* ---------- Testimonials ---------- */

.quote-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

@media (max-width: 820px) {
  .quote-grid {
    grid-template-columns: 1fr;
  }
}

.quote-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 28px;
}

.quote-card blockquote {
  margin: 0 0 16px;
  font-style: italic;
  font-size: 1.05rem;
  color: var(--color-text);
}

.quote-card cite {
  display: block;
  font-family: var(--font-display);
  font-style: normal;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent-bright);
}

/* ---------- Media coverage ---------- */

.media-item {
  border-bottom: 1px solid var(--color-border);
  padding: 30px 0;
}

.media-item:first-child {
  padding-top: 0;
}

.media-item:last-child {
  border-bottom: none;
}

.media-item .media-source {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-bright);
}

.media-item h3 {
  margin: 8px 0 10px;
  font-size: 1.3rem;
}

.media-item p {
  color: var(--color-text-muted);
  margin: 0 0 10px;
}

/* ---------- Press kit ---------- */

.fact-sheet {
  max-width: 480px;
  margin: 32px auto 0;
}

.fact-sheet dt {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-top: 16px;
}

.fact-sheet dt:first-child {
  margin-top: 0;
}

.fact-sheet dd {
  margin: 4px 0 0;
  font-size: 1.05rem;
}

/* ---------- Footer ---------- */

.site-footer {
  padding: 48px 0;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--color-text-muted);
  font-family: var(--font-display);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.footer-links a:hover {
  color: var(--color-accent-bright);
}

.site-footer .copyright {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.placeholder-note {
  display: inline-block;
  margin-top: 4px;
  font-size: 0.72rem;
  color: #6b6656;
  font-family: var(--font-body);
  font-style: italic;
}