/* =====================================================================
   base.css — typography, layout primitives, dividers, navigation,
   and the unique-page styles (cover, foreword, contents, colophon).
   All values verbatim from the V4 prototype lines 77–642.
   Depends on tokens.css for all CSS variables.
   ===================================================================== */

/* =====================================================================
   TYPOGRAPHY
   ===================================================================== */

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  color: var(--ink);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.005em;
}

h1 { font-size: clamp(2.5rem, 7vw, 5.25rem); font-weight: 500; letter-spacing: -0.015em; }
h2 { font-size: clamp(1.875rem, 4vw, 3rem); font-weight: 500; }
h3 { font-size: clamp(1.4rem, 2.5vw, 1.875rem); font-weight: 500; }
h4 { font-size: 1.25rem; font-weight: 600; }
h5 { font-size: 1.0625rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--ink-soft); }

p { margin-bottom: 1.1em; max-width: var(--column-width); }
p:last-child { margin-bottom: 0; }

em, i { font-style: italic; }
strong, b { font-weight: 600; color: var(--ink); }

a { color: var(--terracotta); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--terracotta-dark); }

/* Dialect terms (italic with subtle terracotta underline) */
.dialect, em em, em strong {
  color: var(--ink);
  font-style: italic;
}

/* Hock Ko's voice — italic display serif */
.voice {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.375em;
  font-weight: 400;
  color: var(--ink);
  line-height: 1.4;
  letter-spacing: 0.005em;
}

/* Drop cap for opening paragraphs of major sections */
.drop-cap::first-letter {
  font-family: var(--font-display);
  font-size: 4.5rem;
  font-weight: 500;
  float: left;
  line-height: 0.85;
  margin: 0.1em 0.1em 0 0;
  color: var(--terracotta);
}

/* =====================================================================
   LAYOUT PRIMITIVES
   ===================================================================== */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.column {
  max-width: var(--column-width);
  margin-left: auto;
  margin-right: auto;
}

.wide {
  max-width: var(--wide-width);
  margin-left: auto;
  margin-right: auto;
}

.full-bleed {
  width: 100vw;
  margin-left: 50%;
  transform: translateX(-50%);
  max-width: 100vw;
}

section { padding: clamp(3rem, 8vw, 7rem) 0; position: relative; }

/* =====================================================================
   ORNAMENTAL DIVIDERS
   ===================================================================== */

.ornament {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 3.5rem auto;
  max-width: 12rem;
  color: var(--terracotta);
  opacity: 0.65;
}

.ornament::before, .ornament::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--rule), transparent);
}

.ornament-mark {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin: 0 1rem;
  color: var(--terracotta);
  font-style: italic;
  line-height: 1;
}

.rule {
  border: none;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--rule), transparent);
  margin: 2.5rem auto;
  max-width: 16rem;
}

/* =====================================================================
   NAVIGATION
   ===================================================================== */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(245, 239, 227, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s;
  padding: 0.875rem 0;
}

.nav.scrolled {
  border-bottom-color: var(--rule-soft);
  box-shadow: 0 2px 12px rgba(43,31,20,0.04);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.nav-brand {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: 1.1875rem;
  color: var(--ink);
  letter-spacing: 0.005em;
}

.nav-brand .han {
  font-family: var(--font-han);
  font-style: normal;
  color: var(--terracotta);
  margin-right: 0.5rem;
}

.nav-toc-toggle {
  background: none;
  border: 1px solid var(--rule);
  color: var(--ink-soft);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  padding: 0.4rem 0.95rem;
  cursor: pointer;
  border-radius: 2px;
  letter-spacing: 0.04em;
  transition: all 0.2s;
}

.nav-toc-toggle:hover {
  border-color: var(--terracotta);
  color: var(--terracotta);
}


/* =====================================================================
   COVER PAGE — page-fills, full bleed
   ===================================================================== */

.cover {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  padding: 6rem var(--gutter) 4rem;
  overflow: hidden;
}

.cover-painting {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background-image: url('../img/hock_ko_cover_painting_master.png');
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.cover-painting::after {
  /* Warm vignette + subtle paper-edge gradient for legibility */
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom,
      rgba(245, 239, 227, 0.35) 0%,
      rgba(245, 239, 227, 0.05) 25%,
      rgba(43, 31, 20, 0.15) 75%,
      rgba(43, 31, 20, 0.55) 100%
    );
}

.cover-content {
  position: relative;
  z-index: 2;
  max-width: 60rem;
  padding: 2.5rem 2.25rem 2.75rem;
  background: rgba(245, 239, 227, 0.85);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  border: 1px solid rgba(160, 73, 45, 0.15);
  border-radius: 2px;
  box-shadow: 0 24px 60px rgba(43,31,20,0.25);
  margin-top: auto;
  margin-bottom: 4vh;
}

.cover-eyebrow {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--terracotta);
  margin-bottom: 1.25rem;
  font-weight: 500;
}

.cover-title {
  font-family: var(--font-display);
  font-size: clamp(2.75rem, 8vw, 5.5rem);
  font-weight: 500;
  line-height: 0.96;
  margin-bottom: 0.5rem;
  letter-spacing: -0.012em;
  color: var(--ink);
}

.cover-title em {
  font-style: italic;
  color: var(--terracotta);
}

.cover-han {
  font-family: var(--font-han);
  font-size: clamp(1.25rem, 2.5vw, 1.875rem);
  color: var(--terracotta);
  letter-spacing: 0.5em;
  margin: 1.25rem 0 1.5rem;
  font-weight: 400;
}

.cover-byline {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.25rem;
  color: var(--ink-soft);
  margin-bottom: 2rem;
}

.cover-byline .name {
  color: var(--ink);
  font-weight: 500;
  font-style: normal;
}

.cover-tagline {
  font-family: var(--font-body);
  font-size: 1.125rem;
  color: var(--ink-soft);
  max-width: 38rem;
  margin: 0 auto 2.25rem;
  line-height: 1.6;
}

.cover-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  letter-spacing: 0.06em;
  color: var(--ink);
  border-bottom: 1.5px solid var(--terracotta);
  padding: 0.25rem 0 0.4rem;
  cursor: pointer;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  transition: all 0.25s;
}

.cover-cta:hover {
  color: var(--terracotta);
  letter-spacing: 0.08em;
}

.cover-cta::after {
  content: '↓';
  font-size: 0.95em;
  transition: transform 0.25s;
}

.cover-cta:hover::after {
  transform: translateY(2px);
}

/* =====================================================================
   FOREWORD
   ===================================================================== */

.foreword {
  background: var(--paper);
  position: relative;
}

.foreword-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
  max-width: 80rem;
  margin: 0 auto;
}

.foreword-portrait {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: var(--paper-deep);
  box-shadow:
    0 1px 0 var(--rule-soft),
    0 30px 60px -20px rgba(43,31,20,0.25),
    0 16px 32px -16px rgba(43,31,20,0.18);
}

.foreword-portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.foreword-text h5 {
  margin-bottom: 1.25rem;
  color: var(--terracotta);
  letter-spacing: 0.18em;
}

.foreword-text h2 {
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  margin-bottom: 1.5rem;
  font-style: italic;
  font-weight: 400;
  line-height: 1.05;
}

.foreword-text h2 em {
  color: var(--terracotta);
  font-weight: 500;
}

.foreword-text p {
  font-size: 1.125rem;
  line-height: 1.75;
  margin-bottom: 1.25em;
  color: var(--ink);
}

.foreword-text p.lead {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.5rem;
  color: var(--terracotta-dark);
  line-height: 1.4;
  margin-bottom: 1.75em;
}

.foreword-text .signature {
  margin-top: 2rem;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.25rem;
  color: var(--ink);
}

.foreword-text .signature .name {
  display: block;
  font-size: 2rem;
  font-style: italic;
  color: var(--terracotta);
  letter-spacing: 0.01em;
  font-weight: 500;
}

@media (max-width: 880px) {
  .foreword-grid { grid-template-columns: 1fr; }
  .foreword-portrait { aspect-ratio: 4 / 4; max-width: 28rem; margin: 0 auto; }
}

/* =====================================================================
   TABLE OF CONTENTS
   ===================================================================== */

.toc {
  background: var(--paper-deep);
  position: relative;
  border-top: 1px solid var(--rule-soft);
  border-bottom: 1px solid var(--rule-soft);
}

.toc-header {
  text-align: center;
  margin-bottom: 4rem;
}

.toc-header h5 {
  color: var(--terracotta);
  margin-bottom: 1rem;
}

.toc-header h2 {
  font-style: italic;
  font-weight: 400;
  margin-bottom: 1rem;
}

.toc-header p {
  font-size: 1.125rem;
  color: var(--ink-soft);
  max-width: 40rem;
  margin: 0 auto;
  font-family: var(--font-display);
  font-style: italic;
}

.toc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(20rem, 1fr));
  gap: 1.5rem;
  max-width: 78rem;
  margin: 0 auto;
}

.chapter-card {
  position: relative;
  background: var(--paper);
  padding: 2rem 1.875rem 1.875rem;
  border: 1px solid var(--rule-soft);
  text-decoration: none;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  cursor: pointer;
  transition: all 0.3s ease;
  min-height: 16rem;
}

.chapter-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px -8px rgba(43,31,20,0.15);
  border-color: var(--terracotta);
}

.chapter-card.unavailable {
  background: var(--paper-deep);
  opacity: 0.65;
  cursor: not-allowed;
}

.chapter-card.unavailable:hover {
  transform: none;
  box-shadow: none;
  border-color: var(--rule-soft);
}

.chapter-num {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 500;
}

.chapter-card.available .chapter-num {
  color: var(--terracotta);
}

.chapter-name {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 500;
  font-style: italic;
  line-height: 1.05;
  letter-spacing: -0.01em;
}

.chapter-han {
  font-family: var(--font-han);
  font-size: 1.25rem;
  color: var(--terracotta);
  letter-spacing: 0.15em;
  margin-top: -0.5rem;
}

.chapter-card.unavailable .chapter-han {
  color: var(--ink-faint);
}

.chapter-card-recipes {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--rule-soft);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.9375rem;
  color: var(--ink-soft);
  line-height: 1.55;
}

.chapter-status {
  position: absolute;
  top: 1.25rem; right: 1.25rem;
  font-family: var(--font-body);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.chapter-card.available .chapter-status {
  color: var(--terracotta);
}


/* =====================================================================
   Generic page-section wrapper — used for glossary, colophon, members,
   and any other prose-only page that doesn't have its own dedicated
   layout. New in V1 production build.
   ===================================================================== */

.page-section {
  padding: var(--space-2xl) 0 var(--space-xl);
  min-height: 60vh;
}

.page-section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
  max-width: var(--column-width);
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--gutter);
}

.page-section-header h5 {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--terracotta);
  margin-bottom: var(--space-sm);
}

.page-section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 500;
  font-style: italic;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin-bottom: var(--space-sm);
}

.page-section-header p {
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--ink-soft);
  font-style: italic;
}

/* =====================================================================
   Glossary page — definition list
   ===================================================================== */

.glossary-list {
  max-width: var(--column-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
  font-family: var(--font-body);
}

.glossary-list dt {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-style: italic;
  font-weight: 500;
  color: var(--terracotta);
  margin-top: var(--space-md);
  margin-bottom: 0.25rem;
}

.glossary-list dd {
  font-size: 1rem;
  color: var(--ink-soft);
  line-height: 1.65;
  margin-left: 0;
  padding-left: 0;
  border-left: 2px solid var(--rule-soft);
  padding-left: var(--space-sm);
}

/* =====================================================================
   Colophon page
   ===================================================================== */

.colophon-body {
  max-width: var(--column-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--ink);
}

.colophon-body p {
  margin-bottom: var(--space-md);
}

.colophon-body a {
  color: var(--terracotta);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.colophon-body a:hover {
  color: var(--terracotta-dark);
}

.colophon-signoff {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-style: italic;
  text-align: center;
  color: var(--terracotta);
  margin-top: var(--space-xl) !important;
}

/* =====================================================================
   TOC dropdown — collapsible chapter groups (see recipe.css for styles)
   ===================================================================== */

/* =====================================================================
   Foreword end-of-page CTA — "Begin reading → Chapter One"
   Mirrors cover-cta visual language. Spans full text column.
   ===================================================================== */

.foreword-cta-wrap {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--rule-soft);
  text-align: center;
}

.foreword-cta {
  display: inline-flex;
  align-items: baseline;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-style: italic;
  font-weight: 500;
  color: var(--terracotta);
  text-decoration: none;
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--terracotta);
  transition: color 0.2s ease, transform 0.25s ease, border-color 0.2s ease;
}

.foreword-cta:hover {
  color: var(--terracotta-dark);
  border-color: var(--terracotta-dark);
  transform: translateY(-2px);
}

.foreword-cta .cta-detail {
  font-style: normal;
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-left: 0.25rem;
}

.foreword-cta .cta-arrow {
  font-style: normal;
  font-size: 1.4rem;
  transition: transform 0.25s ease;
}

.foreword-cta:hover .cta-arrow {
  transform: translateX(4px);
}

@media (max-width: 600px) {
  .foreword-cta { font-size: 1.3rem; flex-wrap: wrap; justify-content: center; }
  .foreword-cta .cta-detail { width: 100%; margin-left: 0; }
}

/* =====================================================================
   TOC dropdown — disabled-row (recipe in manifest but not yet written)
   ===================================================================== */
.toc-panel-list .disabled-row {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--rule-soft);
  font-family: var(--font-body);
  color: var(--ink-faint);
  cursor: not-allowed;
  opacity: 0.65;
}

.toc-panel-list .disabled-row .num {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  color: var(--ink-faint);
  min-width: 2.2rem;
}

.toc-panel-list .disabled-row .coming-tag {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--terracotta);
  margin-left: auto;
  opacity: 0.7;
  font-style: italic;
}