/**
 * Zine.css - Solid Typography & DTP Layout Engine
 * Core Stylesheet for Zine.js
 * 
 * @version 1.1.0
 */

:root {
  /* Baseline Grid Default (8px) */
  --zine-baseline: 8px;
  --zine-base-leading: 32px;
  --zine-ratio: 1.414;
  
  /* Modular Scale Defaults (Calculated by Zine.js) */
  --zine-font-base: 16px;
  --zine-line-height: calc(var(--zine-baseline) * 4); /* 32px */
  --zine-font-xs: 11px;
  --zine-font-sm: 13px;
  --zine-font-md: 16px;
  --zine-font-lg: 22.6px;  /* Silver ratio 1.414 */
  --zine-font-xl: 32px;
  --zine-font-2xl: 45.2px;
  --zine-font-3xl: 64px;

  /* Hanmen Margins */
  --zine-margin-top: calc(var(--zine-baseline) * 8);
  --zine-margin-bottom: calc(var(--zine-baseline) * 12);
  --zine-margin-inner: calc(var(--zine-baseline) * 6);
  --zine-margin-outer: calc(var(--zine-baseline) * 8);

  /* Colors (Pure Solid Monochrome with Ink Tone) */
  --zine-ink-primary: #0f172a;
  --zine-ink-secondary: #334155;
  --zine-ink-muted: #64748b;
  --zine-ink-subtle: #94a3b8;
  --zine-ink-border: #e2e8f0;
  --zine-paper-bg: #ffffff;
  --zine-paper-deep: #f8fafc;
  --zine-accent: #0f172a;
  --zine-accent-blue: #0284c7;

  /* Micro-typography */
  --zine-latin-scale: 1.05;
  --zine-latin-offset: 0.02em;
  --zine-quarter-space: 0.22em;
}

/* ==========================================================================
   Baseline Grid & Margin Overlays (HUD Inspection)
   ========================================================================== */

.zine-debug-grid {
  position: relative;
}
.zine-debug-grid::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: linear-gradient(to bottom, rgba(16, 185, 129, 0.15) 1px, transparent 1px);
  background-size: 100% var(--zine-baseline);
  pointer-events: none;
  z-index: 9999;
}

body.zine-hud-baseline-active {
  background-size: 100% var(--zine-base-leading, 32px);
  background-image: linear-gradient(to bottom, rgba(58, 123, 213, 0.15) 1px, transparent 1px) !important;
}

body.zine-hud-margins-active [data-zine="container"],
body.zine-hud-margins-active .zine-container,
body.zine-hud-margins-active .zine-page {
  outline: 1px solid rgba(220, 53, 69, 0.4);
  background-color: rgba(220, 53, 69, 0.015);
}
body.zine-hud-margins-active .zine-main-column {
  outline: 1px dashed rgba(40, 167, 69, 0.4);
}
body.zine-hud-margins-active .zine-sidenote-column {
  outline: 1px dashed rgba(255, 193, 7, 0.4);
}

/* ==========================================================================
   Hanmen Article Container
   ========================================================================== */

[data-zine="container"],
.zine-container {
  position: relative;
  box-sizing: border-box;
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: var(--zine-margin-top) var(--zine-margin-outer) var(--zine-margin-bottom) var(--zine-margin-inner);
  background-color: var(--zine-paper-bg);
  color: var(--zine-ink-primary);
  font-feature-settings: "palt" 1, "pkna" 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Strict Baseline Snap Base */
[data-zine] p,
[data-zine] h1,
[data-zine] h2,
[data-zine] h3,
[data-zine] h4,
[data-zine] blockquote,
[data-zine] ul,
[data-zine] ol {
  margin: 0;
  padding: 0;
  text-wrap: pretty;
  transition: font-size 0.25s cubic-bezier(0.16, 1, 0.3, 1), line-height 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-zine] p {
  font-size: var(--zine-font-base);
  line-height: var(--zine-line-height);
  margin-bottom: calc(var(--zine-baseline) * 3); /* 24px */
  color: var(--zine-ink-secondary);
  letter-spacing: 0.035em;
}

/* Headings with Strict Baseline Multiples and Modular Scale */
[data-zine] h1 {
  font-family: 'Noto Serif JP', '游明朝', YuMincho, serif;
  font-size: var(--zine-font-2xl);
  line-height: var(--zine-line-height-2xl, calc(var(--zine-baseline) * 7));
  margin-top: calc(var(--zine-baseline) * 4);
  margin-bottom: calc(var(--zine-baseline) * 3);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--zine-ink-primary);
}

[data-zine] h2 {
  font-family: 'Noto Serif JP', '游明朝', YuMincho, serif;
  font-size: var(--zine-font-xl);
  line-height: var(--zine-line-height-xl, calc(var(--zine-baseline) * 5));
  margin-top: calc(var(--zine-baseline) * 5);
  margin-bottom: calc(var(--zine-baseline) * 2);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--zine-ink-primary);
}

[data-zine] h3 {
  font-family: 'Noto Serif JP', '游明朝', YuMincho, serif;
  font-size: var(--zine-font-lg);
  line-height: var(--zine-line-height-lg, calc(var(--zine-baseline) * 4));
  margin-top: calc(var(--zine-baseline) * 4);
  margin-bottom: calc(var(--zine-baseline) * 2);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--zine-ink-primary);
}

/* ==========================================================================
   Micro-Typography & Optical Typography
   ========================================================================== */

/* Latin scaling in Japanese text (Virtual Composite Font) */
.zine-latin {
  font-family: "Cormorant Garamond", "Space Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: calc(1em * var(--zine-latin-scale, 1.05));
  vertical-align: var(--zine-latin-offset, 0.02em);
  letter-spacing: 0.02em;
  font-feature-settings: normal;
  display: inline-block;
}

/* Quarter-Space between Japanese & Latin */
.zine-quarter-space {
  display: inline-block;
  width: var(--zine-quarter-space, 0.22em);
}

/* Bracket Trimming */
.zine-bracket-trim-open {
  margin-left: -0.2em;
}
.zine-bracket-trim-close {
  margin-right: -0.2em;
}

/* Hanging Punctuation & Quotes */
.zine-hang-quote {
  margin-left: -0.45em;
}
.zine-hang-punc {
  margin-right: -0.4em;
}

/* Precision Drop Caps */
.zine-dropcap-wrap {
  float: left;
  display: block;
  font-family: "Noto Serif JP", "游明朝", YuMincho, serif;
  font-weight: 700;
  color: var(--zine-ink-primary);
  line-height: 0.92;
  margin-top: 3px;
  margin-right: 14px;
  margin-bottom: 0;
  user-select: none;
  transition: font-size 0.25s cubic-bezier(0.16, 1, 0.3, 1), height 0.25s cubic-bezier(0.16, 1, 0.3, 1), line-height 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   Tufte Sidenotes (Bidirectional Interactive System)
   ========================================================================== */

.zine-ref,
.zine-sidenote-ref {
  font-feature-settings: "sups" 1;
  font-size: 0.72em;
  font-weight: 600;
  color: var(--zine-accent, #0f172a);
  padding: 1px 3px;
  vertical-align: super;
  cursor: pointer;
  border-radius: 2px;
  transition: all 0.2s ease;
  user-select: none;
}

.zine-ref:hover,
.zine-ref.active,
.zine-sidenote-ref.active {
  background-color: rgba(14, 165, 233, 0.15);
  color: var(--zine-accent-blue, #0284c7);
  outline: 1px solid rgba(2, 132, 199, 0.3);
}

.zine-sidenote {
  font-size: 12.5px;
  line-height: 22px;
  color: var(--zine-ink-muted);
  border-left: 1.5px solid var(--zine-ink-border);
  padding-left: 12px;
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  letter-spacing: 0.02em;
  transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, background-color 0.2s ease;
}

.zine-sidenote.active {
  color: var(--zine-ink-primary, #0f172a);
  border-left-color: var(--zine-accent-blue, #0284c7);
  background-color: rgba(14, 165, 233, 0.05);
  transform: translateX(4px);
  border-radius: 0 4px 4px 0;
}

/* Booklet / Page Sidenote Protection: Never crush page margins inside a book layout */
.zine-page .zine-sidenote,
.zine-book .zine-sidenote {
  position: static !important;
  width: 100% !important;
  margin: 12px 0 14px 0 !important;
  background: var(--zine-paper-deep, #f8fafc);
  border-left: 2px solid var(--zine-ink-primary, #0f172a);
  padding: 8px 12px;
  font-size: 11.5px;
  line-height: 1.75;
  color: var(--zine-ink-muted, #555);
  border-radius: 2px;
}

@media (min-width: 960px) {
  /* Only apply expansive 320px margin column to standard article containers */
  .zine-has-sidenotes:not(.zine-page):not(.zine-book) {
    padding-right: 320px !important;
  }
  .zine-container:not(.zine-page):not(.zine-book) .zine-sidenote,
  [data-zine="container"]:not(.zine-book):not(.zine-page) .zine-sidenote {
    position: absolute;
    right: 36px;
    width: 240px;
    margin-top: 0;
    transition: top 0.2s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
  }
}

@media (max-width: 959px) {
  .zine-sidenote {
    display: block;
    margin: 16px 0;
    background: var(--zine-paper-deep);
    border-radius: 4px;
    padding: 12px 14px;
  }
}

/* ==========================================================================
   Tateyoko: Vertical & Horizontal Hybrid
   ========================================================================== */

.zine-vertical-block {
  writing-mode: vertical-rl;
  -webkit-writing-mode: vertical-rl;
  text-orientation: upright;
  font-feature-settings: "vpal" 1, "vkna" 1;
  display: inline-block;
  vertical-align: top;
  margin: 0 calc(var(--zine-baseline) * 3);
  letter-spacing: 0.15em;
  line-height: calc(var(--zine-baseline) * 4);
}

.zine-vertical-heading {
  font-size: var(--zine-font-2xl);
  font-weight: 800;
  border-left: 2px solid var(--zine-ink-primary);
  padding-left: calc(var(--zine-baseline) * 1.5);
}

.zine-tcy {
  text-combine-upright: all;
  -webkit-text-combine: horizontal;
  margin: 0.1em 0;
}

/* ==========================================================================
   Editorial Cut-in / Pull Quotes
   ========================================================================== */

.zine-cutin,
.zine-pullquote {
  position: relative;
  font-family: "Noto Serif JP", "游明朝", YuMincho, serif;
  font-size: var(--zine-font-lg, 20px);
  line-height: var(--zine-line-height-lg, 1.85);
  font-weight: 600;
  color: var(--zine-ink-primary);
  padding: 26px 0;
  margin: 36px 0;
  border-top: 1px solid var(--zine-ink-primary);
  border-bottom: 1px solid var(--zine-ink-border);
  letter-spacing: 0.08em;
  text-wrap: balance;
  text-align: center;
  transition: font-size 0.25s cubic-bezier(0.16, 1, 0.3, 1), line-height 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@media (min-width: 640px) {
  .zine-cutin,
  .zine-pullquote {
    white-space: nowrap;
  }
}

@media (min-width: 768px) {
  .zine-cutin-float-left {
    float: left;
    width: 45%;
    margin-right: calc(var(--zine-baseline) * 4);
    margin-top: calc(var(--zine-baseline) * 1);
    margin-bottom: calc(var(--zine-baseline) * 2);
  }
  .zine-cutin-float-right {
    float: right;
    width: 45%;
    margin-left: calc(var(--zine-baseline) * 4);
    margin-top: calc(var(--zine-baseline) * 1);
    margin-bottom: calc(var(--zine-baseline) * 2);
  }
}

/* ==========================================================================
   Editorial Assets (Plates, TOC, Colophon)
   ========================================================================== */

/* Plates & Figures */
.zine-plate {
  margin: calc(var(--zine-baseline) * 4) 0;
  position: relative;
}
.zine-plate img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 4px;
}
.zine-plate figcaption {
  font-size: var(--zine-font-xs);
  line-height: calc(var(--zine-baseline) * 2.5);
  color: var(--zine-ink-muted);
  margin-top: 0.5rem;
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--zine-ink-border);
  padding-top: 0.5rem;
}

/* Table of Contents (Dot Leader) */
.zine-toc {
  margin: calc(var(--zine-baseline) * 4) 0;
  padding: calc(var(--zine-baseline) * 3) calc(var(--zine-baseline) * 4);
  background-color: var(--zine-paper-deep);
  border: 1px solid var(--zine-ink-border);
  border-radius: 6px;
}
.zine-toc-title {
  font-family: "Cormorant Garamond", serif;
  font-size: var(--zine-font-sm);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--zine-accent);
  margin-bottom: 0.75rem;
  text-align: center;
  font-weight: 600;
}
.zine-toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.zine-toc-item {
  display: flex;
  align-items: baseline;
  font-size: var(--zine-font-sm);
  line-height: calc(var(--zine-baseline) * 3);
}
.zine-toc-title-text {
  flex-shrink: 0;
  color: var(--zine-ink-primary);
  font-weight: 500;
}
.zine-toc-leader {
  flex-grow: 1;
  border-bottom: 1px dotted var(--zine-ink-subtle);
  margin: 0 0.5rem;
  height: 1px;
}
.zine-toc-page {
  font-family: "Cormorant Garamond", serif;
  font-size: var(--zine-font-sm);
  color: var(--zine-ink-muted);
  font-style: italic;
  flex-shrink: 0;
}

/* Colophon (奥付) */
.zine-colophon {
  margin-top: calc(var(--zine-baseline) * 8);
  padding-top: calc(var(--zine-baseline) * 3);
  border-top: 1px solid var(--zine-ink-primary);
  border-bottom: 1px solid var(--zine-ink-border);
  padding-bottom: calc(var(--zine-baseline) * 3);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  font-size: var(--zine-font-xs);
  line-height: calc(var(--zine-baseline) * 2.5);
  color: var(--zine-ink-muted);
}
.zine-colophon h4 {
  font-family: "Cormorant Garamond", serif;
  font-size: var(--zine-font-sm);
  color: var(--zine-ink-primary);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  font-weight: 600;
}
.zine-colophon dl {
  display: grid;
  grid-template-columns: 80px 1fr;
  row-gap: 0.35rem;
}
.zine-colophon dt {
  color: var(--zine-ink-subtle);
}
.zine-colophon dd {
  color: var(--zine-ink-primary);
}

/* Multi-column Editorial Layout */
.zine-columns-2 {
  column-count: 2;
  column-gap: calc(var(--zine-baseline) * 4);
  column-rule: 1px solid var(--zine-ink-border);
}
@media (max-width: 768px) {
  .zine-columns-2 {
    column-count: 1;
  }
}

/* Folio */
.zine-folio {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--zine-font-xs);
  color: var(--zine-ink-muted);
  border-top: 1px solid var(--zine-ink-border);
  padding-top: calc(var(--zine-baseline) * 2);
  margin-top: calc(var(--zine-baseline) * 6);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 600;
}

/* ==========================================================================
   Zine Inspector HUD Panel
   ========================================================================== */

#zine-hud-panel {
  position: fixed;
  bottom: 24px;
  left: 24px;
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: #f8fafc;
  border-radius: 8px;
  box-shadow: 0 12px 36px rgba(0,0,0,0.25);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 12px;
  width: 290px;
  max-width: calc(100vw - 48px);
  z-index: 99999;
  border: 1px solid rgba(255,255,255,0.12);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease;
  overflow: hidden;
}

#zine-hud-panel.collapsed .hud-body {
  display: none;
}

.hud-header {
  padding: 10px 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  cursor: pointer;
  user-select: none;
}

.hud-header h3 {
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #f8fafc;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 0;
}

.hud-header .hud-badge {
  background: var(--zine-accent-blue, #0284c7);
  color: #fff;
  font-size: 9px;
  padding: 2px 6px;
  border-radius: 3px;
  font-weight: 700;
}

.hud-body {
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.hud-control-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hud-label {
  display: flex;
  justify-content: space-between;
  color: #94a3b8;
  font-size: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hud-label span.val {
  color: #fff;
  font-family: "JetBrains Mono", SFMono-Regular, Menlo, monospace;
}

.hud-slider {
  width: 100%;
  accent-color: var(--zine-accent-blue, #0284c7);
  cursor: pointer;
}

.hud-buttons {
  display: flex;
  gap: 6px;
}

.hud-btn {
  flex: 1;
  background: rgba(255,255,255,0.08);
  color: #f8fafc;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 4px;
  padding: 6px 8px;
  font-size: 10px;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: center;
}

.hud-btn:hover {
  background: rgba(255,255,255,0.16);
  border-color: rgba(255,255,255,0.3);
}

.hud-btn.active {
  background: var(--zine-accent-blue, #0284c7);
  border-color: var(--zine-accent-blue, #0284c7);
  color: #fff;
  font-weight: 600;
}

/* ==========================================================================
   Print Optimization
   ========================================================================== */
@media print {
  #zine-hud-panel {
    display: none !important;
  }
}