/* ============================================
   SOUTH SEAS PUBLISHING — shared stylesheet
   ============================================ */

:root {
  --ink: #0E2438;
  --ink-soft: #17334A;
  --gold: #C89B4C;
  --gold-bright: #E0B564;
  --ember: #D9722D;
  --blood: #8B2E22;
  --parchment: #E3EAF1;
  --parchment-dim: #CBD8E6;
  --tide: #2B4A52;
  --ink-70: rgba(14, 36, 56, 0.72);
  --gold-15: rgba(200, 155, 76, 0.15);
  --gold-35: rgba(200, 155, 76, 0.35);

  --display: 'Cinzel', serif;
  --body: 'EB Garamond', serif;
  --utility: 'Jost', sans-serif;

  --max-width: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  background: var(--parchment);
  color: var(--ink);
  font-family: var(--body);
  font-size: 1.15rem;
  line-height: 1.65;
}

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

a { color: inherit; }

h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: 0.01em;
  margin: 0 0 0.5em;
  line-height: 1.15;
}

p { margin: 0 0 1.1em; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.75rem;
}

/* ---------- Eyebrow / divider (ship's-log motif) ---------- */

.eyebrow {
  font-family: var(--utility);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--blood);
  display: flex;
  align-items: center;
  gap: 0.65em;
  margin-bottom: 1.1em;
}
.eyebrow::before, .eyebrow::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--blood);
  opacity: 0.55;
}
.eyebrow .diamond {
  width: 6px; height: 6px;
  background: var(--blood);
  transform: rotate(45deg);
  flex: none;
}

.eyebrow.on-dark { color: var(--gold); }
.eyebrow.on-dark::before, .eyebrow.on-dark::after { background: var(--gold); opacity: 0.5; }
.eyebrow.on-dark .diamond { background: var(--gold); }

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

.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--ink);
  border-bottom: 1px solid var(--gold-35);
}
.site-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.nav-mark {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--parchment);
}
.nav-mark img { width: 34px; height: 34px; }
.nav-wordmark {
  font-family: var(--display);
  font-size: 1.02rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.nav-links {
  display: flex;
  gap: 2.2rem;
  list-style: none;
  margin: 0; padding: 0;
  font-family: var(--utility);
  font-size: 0.92rem;
  letter-spacing: 0.04em;
}
.nav-links a {
  text-decoration: none;
  color: var(--parchment-dim);
  padding-bottom: 4px;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.nav-links a:hover, .nav-links a:focus-visible, .nav-links a.active {
  color: var(--gold-bright);
  border-color: var(--gold);
}
.nav-toggle { display: none; }

@media (max-width: 780px) {
  .nav-links {
    position: absolute;
    top: 76px; left: 0; right: 0;
    background: var(--ink);
    flex-direction: column;
    gap: 0;
    border-bottom: 1px solid var(--gold-35);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  .nav-links.open { max-height: 320px; }
  .nav-links li { border-top: 1px solid rgba(200,155,76,0.15); }
  .nav-links a { display: block; padding: 1rem 1.75rem; border-bottom: none; }
  .nav-toggle {
    display: block;
    background: none;
    border: 1px solid var(--gold-35);
    color: var(--gold);
    font-family: var(--utility);
    font-size: 0.85rem;
    letter-spacing: 0.08em;
    padding: 0.5rem 0.9rem;
    cursor: pointer;
  }
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--utility);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.85em 1.8em;
  border: 1px solid var(--gold);
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}
.btn-solid { background: var(--gold); color: var(--ink); }
.btn-solid:hover { background: var(--gold-bright); transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--gold-bright); }
.btn-outline:hover { background: var(--gold-15); transform: translateY(-1px); }
.btn:focus-visible { outline: 2px solid var(--ember); outline-offset: 3px; }

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

.hero {
  background: var(--ink);
  color: var(--parchment);
  padding: 4.5rem 0 5rem;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 80% 20%, rgba(217,114,45,0.14), transparent 55%);
  pointer-events: none;
}
.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3.5rem;
  align-items: center;
}
.hero-kicker {
  font-family: var(--utility);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ember);
  margin-bottom: 1.2rem;
}
.hero h1 {
  font-size: clamp(2.4rem, 4.3vw, 3.6rem);
  color: var(--parchment);
}
.hero h1 em {
  font-style: normal;
  color: var(--gold-bright);
}
.hero-sub {
  font-size: 1.25rem;
  color: var(--parchment-dim);
  max-width: 34em;
  margin-bottom: 2rem;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.hero-cover {
  position: relative;
}
.hero-cover img {
  border: 1px solid var(--gold-35);
  box-shadow: 0 30px 70px rgba(0,0,0,0.55), 0 0 0 10px var(--ink-soft);
}

@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-cover { max-width: 320px; margin: 0 auto; order: -1; }
}

/* ---------- Section spacing ---------- */

section { padding: 5rem 0; }
.section-dark { background: var(--ink); color: var(--parchment); }
.section-parchment { background: var(--parchment); }
.section-dim { background: var(--parchment-dim); }

.section-head {
  max-width: 46em;
  margin-bottom: 2.5rem;
}
.section-head h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); }
.section-dark .section-head h2 { color: var(--parchment); }

/* ---------- Premise / log entries ---------- */

.log-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}
.log-entry {
  border-left: 2px solid var(--gold-35);
  padding-left: 1.5rem;
}
.log-entry h3 {
  font-size: 1.15rem;
  color: var(--blood);
}
.section-dark .log-entry h3 { color: var(--gold-bright); }
@media (max-width: 860px) {
  .log-grid { grid-template-columns: 1fr; gap: 2rem; }
}

/* ---------- Equation / signature strip ---------- */

.equation-block {
  text-align: center;
}
.equation-block img {
  margin: 0 auto 1.5rem;
  max-width: 640px;
  width: 100%;
  border: 1px solid var(--gold-35);
}
.equation-caption {
  font-family: var(--utility);
  font-size: 0.95rem;
  color: var(--parchment-dim);
  max-width: 40em;
  margin: 0 auto;
}

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

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}
.card {
  background: var(--parchment);
  border: 1px solid var(--gold-35);
  padding: 2rem;
}
a.card {
  display: block;
  text-decoration: none;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
a.card:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
}
.card h3 { font-size: 1.2rem; color: var(--blood); }
.card p { font-size: 1.02rem; margin-bottom: 0; color: var(--ink); }
@media (max-width: 860px) {
  .card-grid { grid-template-columns: 1fr; }
}

/* ---------- Two column ---------- */

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}
@media (max-width: 860px) {
  .two-col { grid-template-columns: 1fr; }
}

/* ---------- Pull quote ---------- */

.pullquote {
  font-family: var(--display);
  font-size: clamp(1.4rem, 2.6vw, 1.9rem);
  line-height: 1.4;
  color: var(--gold-bright);
  border-top: 1px solid var(--gold-35);
  border-bottom: 1px solid var(--gold-35);
  padding: 2rem 0;
  margin: 0;
}

/* ---------- CTA band ---------- */

.cta-band {
  background: var(--blood);
  color: var(--parchment);
  text-align: center;
}
.cta-band h2 { color: var(--parchment); }
.cta-band .btn-solid { background: var(--gold); color: var(--ink); }
.cta-band .btn-outline { border-color: var(--parchment); color: var(--parchment); }
.cta-band .btn-outline:hover { background: rgba(240,230,210,0.12); }

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

.site-footer {
  background: var(--ink);
  color: var(--parchment-dim);
  padding: 3.5rem 0 2.5rem;
  font-family: var(--utility);
  font-size: 0.92rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}
.footer-mark {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 1rem;
}
.footer-mark img { width: 28px; height: 28px; }
.footer-mark span {
  font-family: var(--display);
  color: var(--parchment);
  letter-spacing: 0.1em;
  font-size: 0.95rem;
  text-transform: uppercase;
}
.footer-col h4 {
  font-family: var(--utility);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 0.6rem; }
.footer-col a { text-decoration: none; color: var(--parchment-dim); }
.footer-col a:hover { color: var(--gold-bright); }
.footer-bottom {
  border-top: 1px solid rgba(200,155,76,0.2);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--gold-35);
}
@media (max-width: 780px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ---------- Page header (for interior pages) ---------- */

.page-header {
  background: var(--ink);
  color: var(--parchment);
  padding: 3.5rem 0;
}
.page-header h1 { color: var(--parchment); font-size: clamp(2rem, 3.6vw, 2.8rem); }
.page-header p { color: var(--parchment-dim); font-size: 1.2rem; max-width: 40em; margin-bottom: 0; }

/* ---------- Utility ---------- */

.mt-0 { margin-top: 0; }
.text-center { text-align: center; }
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}

@media (min-width: 781px) {
  .nav-toggle { display: none; }
}