/* ARCHITECTURAL MONOGRAPH & ESSAY (KINFOLK / MONOCLE LUXURY PRINT STYLE) */
/* ZERO CARDS, ZERO BUTTONS, ZERO COLORED BOXES, PURE EDITORIAL PURITY */

:root {
  --canvas-ivory: #f8f6f0;
  --ink-primary: #1a1a18;
  --ink-body: #383835;
  --ink-secondary: #70706b;
  --hairline-dark: #1a1a18;
  --hairline-light: #e2ded5;
  --terracotta-accent: #a8422b;
  --font-serif-book: "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", SimSun, STSong, Georgia, serif;
  --font-sans-book: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--canvas-ivory);
  color: var(--ink-body);
  font-family: var(--font-serif-book);
  line-height: 2.1;
  font-size: 18px;
  -webkit-font-smoothing: antialiased;
}

.book-container {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 28px;
}

/* 1. ULTRA-QUIET HEADER (NO BUTTONS, NO LOGOS, JUST MINIMAL PRINT MASTHEAD) */
.book-header {
  padding: 36px 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: 1px solid var(--hairline-dark);
  margin-bottom: 70px;
  font-family: var(--font-sans-book);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--ink-secondary);
}

/* 2. POETIC ESSAY TITLE & INTRO (NO BOXES, MASSIVE TYPE) */
.essay-title-block {
  margin-bottom: 50px;
}

.essay-series-tag {
  font-family: var(--font-sans-book);
  font-size: 12px;
  color: var(--terracotta-accent);
  letter-spacing: 3px;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 18px;
  display: block;
}

.essay-title {
  font-family: var(--font-serif-book);
  font-size: 46px;
  font-weight: 700;
  color: var(--ink-primary);
  line-height: 1.35;
  margin-bottom: 24px;
  letter-spacing: -0.5px;
}

@media (max-width: 768px) {
  .essay-title {
    font-size: 34px;
  }
}

.essay-standfirst {
  font-size: 20px;
  line-height: 1.85;
  color: var(--ink-body);
  font-style: italic;
  padding-left: 20px;
  border-left: 2px solid var(--terracotta-accent);
  margin: 30px 0 40px;
}

/* 3. HERO PORTRAIT WITH MONOGRAPH CAPTION */
.monograph-portrait {
  margin: 50px 0 60px;
}

.monograph-portrait img {
  width: 100%;
  height: auto;
  display: block;
}

.monograph-caption {
  font-family: var(--font-sans-book);
  font-size: 12px;
  color: var(--ink-secondary);
  letter-spacing: 1px;
  margin-top: 14px;
  text-align: right;
}

/* 4. ESSAY TEXT CHAPTERS */
.essay-text h2 {
  font-family: var(--font-serif-book);
  font-size: 26px;
  font-weight: 700;
  color: var(--ink-primary);
  margin: 60px 0 24px;
  line-height: 1.4;
  position: relative;
  padding-top: 24px;
}

.essay-text h2::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--hairline-dark);
}

.essay-text p {
  margin-bottom: 28px;
  text-align: justify;
  text-justify: inter-ideograph;
}

/* 5. THE 5 PRINCIPLES - NO CARDS! INLINE ARCHITECTURAL NUMBERING */
.principles-flow {
  margin: 50px 0;
  border-top: 1px solid var(--hairline-dark);
}

.principle-section {
  padding: 44px 0;
  border-bottom: 1px solid var(--hairline-light);
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 30px;
}

@media (max-width: 680px) {
  .principle-section {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 30px 0;
  }
}

.principle-big-num {
  font-family: var(--font-serif-book);
  font-size: 52px;
  line-height: 1;
  font-weight: 400;
  color: var(--terracotta-accent);
}

.principle-content h3 {
  font-family: var(--font-serif-book);
  font-size: 22px;
  font-weight: 700;
  color: var(--ink-primary);
  margin-bottom: 14px;
}

.principle-content p {
  margin-bottom: 0;
  font-size: 16.5px;
  line-height: 1.9;
  color: var(--ink-body);
}

/* 6. BOOK PHOTO SPREAD (TWO IMAGES SIDE BY SIDE WITH HAIRLINES) */
.photo-spread {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin: 60px 0;
}

@media (max-width: 680px) {
  .photo-spread {
    grid-template-columns: 1fr;
  }
}

.photo-spread-item img {
  width: 100%;
  height: auto;
  display: block;
}

.photo-spread-caption {
  font-family: var(--font-sans-book);
  font-size: 11px;
  color: var(--ink-secondary);
  line-height: 1.6;
  margin-top: 8px;
}

/* 7. ACTION FRAMEWORK - THREE EDITORIAL COLUMNS (NO CARDS) */
.action-triptych {
  margin: 60px 0;
  padding: 40px 0;
  border-top: 2px solid var(--hairline-dark);
  border-bottom: 2px solid var(--hairline-dark);
}

.triptych-title {
  font-family: var(--font-serif-book);
  font-size: 22px;
  font-weight: 700;
  color: var(--ink-primary);
  text-align: center;
  margin-bottom: 36px;
}

.triptych-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

@media (max-width: 768px) {
  .triptych-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

.triptych-col {
  padding-right: 16px;
  border-right: 1px solid var(--hairline-light);
}

.triptych-col:last-child {
  border-right: none;
  padding-right: 0;
}

.triptych-step-num {
  font-family: var(--font-sans-book);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--terracotta-accent);
  margin-bottom: 8px;
}

.triptych-step-name {
  font-family: var(--font-serif-book);
  font-size: 18px;
  font-weight: 700;
  color: var(--ink-primary);
  margin-bottom: 12px;
}

.triptych-step-desc {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-secondary);
}

/* 8. EPILOGUE CALLOUT */
.epilogue-statement {
  margin: 60px 0 40px;
  text-align: center;
  padding: 40px 20px;
}

.epilogue-text {
  font-family: var(--font-serif-book);
  font-size: 26px;
  font-weight: 700;
  color: var(--ink-primary);
  line-height: 1.6;
  margin-bottom: 14px;
}

.epilogue-author {
  font-family: var(--font-sans-book);
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--terracotta-accent);
}

/* 9. MONOGRAPH FOOTER */
.monograph-footer {
  padding: 40px 0 60px;
  border-top: 1px solid var(--hairline-light);
  font-family: var(--font-sans-book);
  font-size: 11px;
  color: var(--ink-secondary);
  display: flex;
  justify-content: space-between;
  letter-spacing: 1px;
}