/* drawlib Modern Developer Light Theme (default.css)
 * Inspired by VitePress (Vue/Vite) & Tailwind CSS documentation
 */
:root {
    --rtd-sidebar-bg: #f8fafc;
    --rtd-sidebar-header: #f8fafc;
    --rtd-sidebar-text: #475569;
    --rtd-sidebar-hover: #f1f5f9;
    --rtd-sidebar-active: #eef2ff;
    --rtd-sidebar-active-text: #4338ca;
    --rtd-brand-color: #4f46e5;
    --rtd-brand-dark: #3730a3;
    --rtd-heading-color: #0f172a;
    --rtd-text-color: #334155;
    --rtd-muted-color: #64748b;
    --rtd-bg-color: #f8fafc;
    --rtd-content-bg: #ffffff;
    --rtd-surface-bg: #f1f5f9;
    --rtd-border-color: #e2e8f0;
    --rtd-code-bg: #f8fafc;
    --rtd-inline-code-bg: #eef2ff;
    --rtd-inline-code-color: #4338ca;
    --rtd-note-bg: #eef2ff;
    --rtd-note-border: #6366f1;
    --rtd-code-keyword: #4f46e5;
    --rtd-code-string: #16a34a;
    --rtd-code-comment: #64748b;
    --rtd-code-number: #d97706;
    --rtd-code-function: #2563eb;
    --rtd-code-type: #9333ea;
    --rtd-code-operator: #475569;
    --rtd-code-builtin: #0284c7;
    --rtd-font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Noto Sans CJK JP", "Yu Gothic", Meiryo, system-ui, sans-serif;
    --rtd-mono-font: "JetBrains Mono", "Fira Code", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Noto Sans Mono CJK JP", monospace;
    --sidebar-width: 280px;

  --slide-primary: #4f46e5;
  --slide-secondary: #16a34a;
  --slide-accent: #d97706;
  --slide-yellow: #f59e0b;
  --slide-border: #e2e8f0;
  --slide-card-bg: #f8fafc;
  --slide-code-bg: #1e1b4b;
  --slide-code-text: #e0e7ff;
}

html[data-theme="dark"] {
    --rtd-sidebar-bg: #090d16;
    --rtd-sidebar-header: #090d16;
    --rtd-sidebar-text: #94a3b8;
    --rtd-sidebar-hover: #1e293b;
    --rtd-sidebar-active: #1e1b4b;
    --rtd-sidebar-active-text: #a5b4fc;
    --rtd-brand-color: #818cf8;
    --rtd-brand-dark: #6366f1;
    --rtd-heading-color: #f1f5f9;
    --rtd-text-color: #e2e8f0;
    --rtd-muted-color: #94a3b8;
    --rtd-bg-color: #090d16;
    --rtd-content-bg: #0f172a;
    --rtd-surface-bg: #1e293b;
    --rtd-border-color: #334155;
    --rtd-code-bg: #090d16;
    --rtd-inline-code-bg: #1e1b4b;
    --rtd-inline-code-color: #a5b4fc;
    --rtd-note-bg: #1e1b4b;
    --rtd-note-border: #6366f1;
    --rtd-code-keyword: #818cf8;
    --rtd-code-string: #4ade80;
    --rtd-code-comment: #94a3b8;
    --rtd-code-number: #fbbf24;
    --rtd-code-function: #60a5fa;
    --rtd-code-type: #c084fc;
    --rtd-code-operator: #cbd5e1;
    --rtd-code-builtin: #38bdf8;

    --slide-card-bg: #1e293b;
    --slide-border: #334155;
}



/* drawlib Code Highlighting and Code Blocks */
code {
    font-family: var(--rtd-mono-font);
    font-size: 0.88em;
    background-color: var(--rtd-inline-code-bg);
    color: var(--rtd-inline-code-color);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-weight: 500;
}

pre {
    background-color: var(--rtd-code-bg);
    border: 1px solid var(--rtd-border-color);
    border-radius: 8px;
    padding: 1.25rem;
    overflow-x: auto;
    font-size: 0.9em;
    line-height: 1.5;
}

pre code {
    background-color: transparent;
    color: inherit;
    padding: 0;
    border: none;
}

/* Pygments syntax highlighting tokens */
pre code .k, pre code .kc, pre code .kd, pre code .kn, pre code .kp, pre code .kr, pre code .kt { color: var(--rtd-code-keyword); font-weight: 600; }
pre code .s, pre code .sa, pre code .sb, pre code .sc, pre code .dl, pre code .sd, pre code .s2, pre code .se, pre code .sh, pre code .si, pre code .sx, pre code .sr, pre code .s1, pre code .ss { color: var(--rtd-code-string); }
pre code .c, pre code .ch, pre code .cm, pre code .cp, pre code .cpf, pre code .c1, pre code .cs { color: var(--rtd-code-comment); font-style: italic; }
pre code .m, pre code .mb, pre code .mf, pre code .mh, pre code .mi, pre code .mo, pre code .il { color: var(--rtd-code-number); }
pre code .nf, pre code .fm { color: var(--rtd-code-function); }
pre code .nc, pre code .ne, pre code .nn, pre code .nt { color: var(--rtd-code-type); font-weight: 600; }
pre code .na, pre code .nd, pre code .py { color: var(--rtd-code-type); font-weight: 600; }
pre code .nb, pre code .bp { color: var(--rtd-code-builtin); }
pre code .o, pre code .ow { color: var(--rtd-code-operator); }
pre code .err { color: #ef4444; }


@font-face {
  font-family: "Phosphor";
  src: url("Phosphor.ttf") format("truetype");
  font-weight: normal;
  font-style: normal;
  font-display: block;
}
:root {
  --slide-width: 1920px;
  --slide-height: 1080px;

  --slide-bg: var(--rtd-content-bg, #ffffff);
  --slide-text: var(--rtd-text-color, #202124);
  --slide-text-muted: var(--rtd-muted-color, #5f6368);
  --slide-primary: var(--rtd-brand-color, #1a73e8);
  --slide-secondary: var(--rtd-code-string, #188038);
  --slide-accent: var(--rtd-code-function, #ea4335);
  --slide-yellow: var(--rtd-code-number, #fbbc04);
  --slide-border: var(--rtd-border-color, #dadce0);
  --slide-card-bg: var(--rtd-surface-bg, #f8f9fa);
  --slide-code-bg: var(--rtd-code-bg, #282c34);
  --slide-code-text: #abb2bf;
  --slide-font: var(--rtd-font, "Google Sans", "Inter", sans-serif);
  --slide-mono-font: var(--rtd-mono-font, "JetBrains Mono", monospace);
  --slide-header-footer-color: var(--rtd-muted-color, #80868b);
}

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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: #0f1013;
  font-family: var(--slide-font);
  color: var(--slide-text);
  -webkit-font-smoothing: antialiased;
}

/* Outer Presentation Viewport */
.presentation-viewport {
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

/* Scaled Stage (1920x1080 fixed coordinate system) */
.presentation-stage {
  width: var(--slide-width);
  height: var(--slide-height);
  position: absolute;
  transform-origin: center center;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

/* Individual Slide Section */
.slide {
  width: var(--slide-width);
  height: var(--slide-height);
  position: absolute;
  top: 0;
  left: 0;
  display: none;
  background-color: var(--slide-bg);
  padding: 0;
  overflow: hidden;
}

.slide.active {
  display: block;
}

/* Slide Content Container */

.slide-body {
  position: absolute;
  top: 0;
  left: 0;
  width: var(--slide-width);
  height: var(--slide-height);
  pointer-events: auto;
}

/* Headings */
h1 {
  font-size: 52px;
  font-weight: 700;
  color: #1a73e8;
  line-height: 1.2;
  margin-bottom: 24px;
}

h2 {
  font-size: 34px;
  font-weight: 500;
  color: var(--slide-text-muted);
  line-height: 1.3;
  margin-bottom: 20px;
}

h3 {
  font-size: 28px;
  font-weight: 600;
  color: var(--slide-text);
  margin-top: 24px;
  margin-bottom: 12px;
}

p, ul, ol {
  font-size: 1em;
  line-height: 1.6;
  color: var(--slide-text);
}

ul {
  padding-left: 40px;
  margin-bottom: 20px;
}

li {
  margin-bottom: 14px;
}

li strong {
  color: var(--slide-primary);
}

/* Code block in slides */
pre code {
  font-family: var(--slide-mono-font);
  font-size: 22px;
  background-color: var(--slide-card-bg);
  border: 1px solid var(--slide-border);
  border-radius: 8px;
  padding: 16px 24px;
  display: block;
  color: #24292e;
  line-height: 1.5;
  margin: 16px 0;
}

code {
  font-family: var(--slide-mono-font);
  background-color: var(--slide-card-bg);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.9em;
}

hr {
  width: 140px;
  height: 6px;
  background-color: var(--slide-accent);
  border: none;
  margin: 30px auto;
  border-radius: 3px;
}


/* Positioned Block Containers (::: block ...) */
.slide-block,
.slide-text-box {
  position: absolute;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  font-size: 26px;
  z-index: 10;
}

.slide-block.compact,
.slide-text-box.compact {
  font-size: 23px;
  line-height: 1.4;
}

.slide-block.compact h1, .slide-text-box.compact h1 { margin-bottom: 14px; }
.slide-block.compact h2, .slide-text-box.compact h2 { margin-bottom: 12px; }
.slide-block.compact h3, .slide-text-box.compact h3 { margin-bottom: 8px; }
.slide-block.compact p, .slide-text-box.compact p,
.slide-block.compact ul, .slide-text-box.compact ul,
.slide-block.compact ol, .slide-text-box.compact ol {
  line-height: 1.4;
  margin-bottom: 10px;
}
.slide-block.compact li, .slide-text-box.compact li { margin-bottom: 6px; }

/* Figures and Vector SVGs inside Blocks */
.slide-block figure.drawlib-image,
.slide-text-box figure.drawlib-image {
  flex: 1;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slide-block figure.drawlib-image > svg,
.slide-block figure.drawlib-image > img,
.slide-block figure.drawlib-image > canvas,
.slide-text-box figure.drawlib-image > svg,
.slide-text-box figure.drawlib-image > img,
.slide-text-box figure.drawlib-image > canvas {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* Interactive Animation Container (<canvas> APNG / WebP Player) */
.drawlib-anim-container {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.drawlib-anim-container .drawlib-anim-canvas {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.drawlib-anim-container .anim-play-badge {
  position: absolute;
  bottom: 16px;
  right: 16px;
  width: 44px;
  height: 44px;
  background: rgba(32, 33, 36, 0.75);
  backdrop-filter: blur(6px);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  opacity: 0.65;
  transition: opacity 0.2s, transform 0.2s, background 0.2s;
  pointer-events: none;
}

.drawlib-anim-container .anim-play-badge svg {
  width: 22px;
  height: 22px;
}

.drawlib-anim-container .anim-play-badge .play-icon {
  display: block;
}

.drawlib-anim-container .anim-play-badge .replay-icon {
  display: none;
}

.drawlib-anim-container:hover .anim-play-badge {
  opacity: 1.0;
  transform: scale(1.1);
  background: var(--slide-primary, #1a73e8);
}

.drawlib-anim-container.playing .anim-play-badge {
  opacity: 0;
  pointer-events: none;
}

.drawlib-anim-container.paused .anim-play-badge {
  opacity: 0.8;
}

.drawlib-anim-container.ended .anim-play-badge {
  opacity: 0.75;
}

.drawlib-anim-container.ended .anim-play-badge .play-icon {
  display: none;
}

.drawlib-anim-container.ended .anim-play-badge .replay-icon {
  display: block;
}

.slide-block img,
.slide-text-box img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.slide-block p:has(> img:only-child),
.slide-text-box p:has(> img:only-child) {
  margin: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Transparent Searchable Text Layer for Drawlib Images */
.text-overlay-container {
  position: relative;
  display: inline-block;
}

.text-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: auto;
  user-select: text;
}

.text-overlay span {
  position: absolute;
  color: transparent;
  transform: translate(-50%, -50%);
  white-space: nowrap;
  font-size: 22px;
  font-weight: 500;
  cursor: text;
}

.text-overlay span::selection {
  background: rgba(26, 115, 232, 0.35);
  color: #1a73e8;
}

/* Callout / Floating Text Card at Specified Position */
.callout-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--slide-border);
  border-left: 6px solid var(--slide-accent);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
  border-radius: 8px;
  padding: 18px 24px;
  font-size: 20px;
  line-height: 1.5;
  color: var(--slide-text);
  z-index: 20;
  backdrop-filter: blur(4px);
}

.callout-card h4 {
  font-size: 22px;
  font-weight: 700;
  color: var(--slide-accent);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Table in Slides */
.slide-block table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
  margin-bottom: 24px;
}

.slide-block th,
.slide-block td {
  padding: 14px 20px;
  font-size: 22px;
  border-bottom: 1px solid var(--slide-border);
  text-align: left;
}

.slide-block th {
  background-color: var(--slide-card-bg);
  color: var(--slide-primary);
  font-weight: 600;
}


/* On-Screen Controls */
.slide-controls {
  position: fixed;
  bottom: 24px;
  right: 28px;
  z-index: 1000;
  display: flex;
  gap: 10px;
  background: rgba(32, 33, 36, 0.85);
  backdrop-filter: blur(8px);
  padding: 8px 14px;
  border-radius: 30px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.slide-controls.visible,
.slide-controls:hover,
.slide-controls:has(.slide-lang-dropdown[open]) {
  opacity: 1;
  transform: translateY(0);
}

.slide-controls button {
  background: none;
  border: none;
  color: #ffffff;
  font-size: 18px;
  padding: 6px 12px;
  cursor: pointer;
  border-radius: 16px;
  transition: background 0.2s;
  display: flex;
  align-items: center;
}

.slide-controls button:hover {
  background: rgba(255, 255, 255, 0.2);
}

.slide-lang-dropdown {
  position: relative;
  display: flex;
  align-items: center;
}

.slide-lang-btn {
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #ffffff;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 12px;
  cursor: pointer;
  border-radius: 16px;
  user-select: none;
  transition: background 0.2s;
}

.slide-lang-btn::-webkit-details-marker {
  display: none;
}

.slide-lang-btn:hover,
.slide-lang-dropdown[open] .slide-lang-btn {
  background: rgba(255, 255, 255, 0.2);
}

.slide-lang-globe {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

.slide-lang-label {
  white-space: nowrap;
  line-height: 1;
}

.slide-lang-menu {
  position: absolute;
  bottom: calc(100% + 10px);
  right: 0;
  min-width: 160px;
  background: rgba(32, 33, 36, 0.96);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  padding: 6px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
  display: flex;
  flex-direction: column;
  gap: 2px;
  z-index: 1010;
}

.slide-lang-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 12px;
  border-radius: 8px;
  color: #e8eaed;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
}

.slide-lang-option:hover {
  background: rgba(255, 255, 255, 0.14);
  color: #ffffff;
  text-decoration: none;
}

.slide-lang-option.active {
  background: rgba(56, 189, 248, 0.22);
  color: #7dd3fc;
  font-weight: 700;
}

.slide-lang-check {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

/* Overview Modal */
.overview-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 16, 19, 0.95);
  backdrop-filter: blur(12px);
  z-index: 2000;
  padding: 60px;
  overflow-y: auto;
}

.overview-modal.active {
  display: block;
}

.overview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 30px;
  max-width: 1600px;
  margin: 0 auto;
}

.overview-thumb {
  background: var(--slide-bg, #ffffff);
  aspect-ratio: 16 / 9;
  border-radius: 8px;
  cursor: pointer;
  outline: 3px solid transparent;
  padding: 20px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  transition: transform 0.2s, outline-color 0.2s;
}

.overview-thumb.has-preview {
  padding: 0;
}

.overview-thumb:hover {
  transform: translateY(-4px);
  outline-color: var(--slide-primary);
}

.overview-thumb.current {
  outline-color: var(--slide-accent);
}

.overview-thumb-stage {
  width: var(--slide-width);
  height: var(--slide-height);
  position: absolute;
  top: 0;
  left: 0;
  transform-origin: top left;
  pointer-events: none;
  user-select: none;
  background-color: var(--slide-bg);
  overflow: hidden;
}

.overview-thumb-stage .anim-play-badge {
  display: none !important;
}

.overview-thumb.has-preview .thumb-title,
.overview-thumb.has-preview .thumb-number {
  display: none;
}

.thumb-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--slide-primary);
  margin-bottom: 8px;
}

.thumb-number {
  position: absolute;
  bottom: 12px;
  right: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--slide-header-footer-color);
}

/* Speaker Notes (Hidden on main stage, shown in Presenter View) */
.slide-notes {
  display: none !important;
}

/* ==========================================================================
   Presenter View (?presenter=1)
   ========================================================================== */
body.presenter-mode {
  background-color: #0f141c;
  color: #e2e8f0;
  overflow: hidden;
}

body.presenter-mode .slide-controls {
  display: none !important;
}

body.presenter-mode.is-resizing-col,
body.presenter-mode.is-resizing-col * {
  cursor: col-resize !important;
  user-select: none !important;
}

body.presenter-mode.is-resizing-row,
body.presenter-mode.is-resizing-row * {
  cursor: row-resize !important;
  user-select: none !important;
}

.presenter-layout {
  display: grid;
  grid-template-columns: var(--pv-sidebar-width, 300px) 6px minmax(360px, 1fr);
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background: #0f141c;
}

/* Horizontal & Vertical Drag Resizers */
.presenter-resizer-col {
  width: 6px;
  height: 100vh;
  background: #1a2332;
  border-left: 1px solid rgba(255, 255, 255, 0.08);
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  cursor: col-resize;
  position: relative;
  z-index: 20;
  transition: background 0.15s;
}

.presenter-resizer-col::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 2px;
  height: 36px;
  border-radius: 2px;
  background: rgba(148, 163, 184, 0.45);
}

.presenter-resizer-col:hover,
.presenter-resizer-col.active {
  background: #0284c7;
}

.presenter-resizer-col:hover::after,
.presenter-resizer-col.active::after {
  background: #ffffff;
}

.presenter-resizer-row {
  width: 100%;
  height: 6px;
  background: #1a2332;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  cursor: row-resize;
  position: relative;
  z-index: 20;
  transition: background 0.15s;
}

.presenter-resizer-row::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 36px;
  height: 2px;
  border-radius: 2px;
  background: rgba(148, 163, 184, 0.45);
}

.presenter-resizer-row:hover,
.presenter-resizer-row.active {
  background: #0284c7;
}

.presenter-resizer-row:hover::after,
.presenter-resizer-row.active::after {
  background: #ffffff;
}

/* Left Column: Vertical Slide List */
.presenter-sidebar {
  display: flex;
  flex-direction: column;
  height: 100vh;
  min-width: 0;
  min-height: 0;
  background: #141b26;
  overflow: hidden;
}

.presenter-sidebar-header {
  padding: 12px 16px;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #94a3b8;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  flex-shrink: 0;
}

.presenter-thumb-list {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  scrollbar-gutter: stable;
  scrollbar-width: thin;
  scrollbar-color: #475569 rgba(15, 23, 42, 0.5);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.presenter-thumb-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.presenter-thumb-item:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(148, 163, 184, 0.4);
}

.presenter-thumb-item.active {
  background: rgba(43, 92, 143, 0.25);
  border-color: #38bdf8;
}

.presenter-thumb-label {
  font-size: 12px;
  font-weight: 600;
  color: #cbd5e1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.presenter-thumb-item.active .presenter-thumb-label {
  color: #38bdf8;
  font-weight: 700;
}

.presenter-thumb-preview {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 5px;
  outline: none !important;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
  pointer-events: none;
}

.presenter-thumb-preview:hover {
  transform: none;
}

/* Right Column: Top Preview, Middle Controls, Resizer, Bottom Speaker Notes */
.presenter-main {
  display: grid;
  grid-template-rows: minmax(140px, 1fr) auto 6px var(--pv-notes-height, 42vh);
  height: 100vh;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  background: #0f141c;
}

.presenter-preview-pane {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  background: #090d12;
  padding: 12px;
}

.presenter-preview-stage-wrap {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.presenter-preview-stage-wrap .presentation-stage {
  transform-origin: center center;
  flex-shrink: 0;
}

/* Right Middle: Control Bar */
.presenter-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 20px;
  background: #18212f;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  flex-shrink: 0;
}

.pv-nav-group,
.pv-anim-group,
.pv-timer-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.pv-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 7px 14px;
  font-size: 14px;
  font-weight: 600;
  color: #f1f5f9;
  background: #263347;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, opacity 0.15s;
}

.pv-btn:hover:not(:disabled) {
  background: #33445e;
  border-color: rgba(255, 255, 255, 0.28);
}

.pv-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.pv-btn-sm {
  padding: 3px 9px;
  font-size: 12px;
}

.pv-btn-icon {
  padding: 6px 10px;
  font-size: 15px;
}

.pv-page-indicator {
  font-size: 15px;
  font-weight: 700;
  color: #f8fafc;
  min-width: 68px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.pv-btn-anim {
  min-width: 175px;
  background: #1d4ed8;
  border-color: #3b82f6;
  color: #ffffff;
}

.pv-btn-anim:hover:not(:disabled) {
  background: #2563eb;
  border-color: #60a5fa;
}

.pv-btn-anim.playing {
  background: #b45309;
  border-color: #f59e0b;
}

.pv-btn-anim.playing:hover:not(:disabled) {
  background: #d97706;
}

.pv-btn-anim.disabled,
.pv-btn-anim:disabled {
  background: #1e293b;
  border-color: rgba(255, 255, 255, 0.08);
  color: #64748b;
  opacity: 0.45;
  cursor: not-allowed;
}

.pv-timer-display {
  font-family: var(--slide-font-mono);
  font-size: 16px;
  font-weight: 700;
  color: #cbd5e1;
  background: rgba(0, 0, 0, 0.3);
  padding: 5px 12px;
  border-radius: 6px;
  font-variant-numeric: tabular-nums;
}

/* Right Bottom: Speaker Notes */
.presenter-notes-pane {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  background: #131a24;
}

.presenter-notes-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 20px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  flex-shrink: 0;
  cursor: row-resize;
  user-select: none;
}

.presenter-notes-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: #94a3b8;
}

.presenter-notes-tools {
  display: flex;
  gap: 6px;
}

.presenter-notes-content {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  scrollbar-gutter: stable;
  scrollbar-width: thin;
  scrollbar-color: #475569 rgba(15, 23, 42, 0.5);
  padding: 18px 24px;
  font-size: 1.15rem;
  line-height: 1.65;
  color: #f1f5f9;
}

.presenter-notes-content::-webkit-scrollbar,
.presenter-thumb-list::-webkit-scrollbar {
  width: 10px;
}

.presenter-notes-content::-webkit-scrollbar-track,
.presenter-thumb-list::-webkit-scrollbar-track {
  background: rgba(15, 23, 42, 0.55);
}

.presenter-notes-content::-webkit-scrollbar-thumb,
.presenter-thumb-list::-webkit-scrollbar-thumb {
  background: #475569;
  border-radius: 5px;
  border: 2px solid rgba(15, 23, 42, 0.55);
}

.presenter-notes-content::-webkit-scrollbar-thumb:hover,
.presenter-thumb-list::-webkit-scrollbar-thumb:hover {
  background: #64748b;
}

.presenter-notes-content p,
.presenter-notes-content ul,
.presenter-notes-content ol {
  font-size: inherit;
  line-height: inherit;
  color: #f1f5f9;
  margin-bottom: 0.7em;
}

.presenter-notes-content ul,
.presenter-notes-content ol {
  padding-left: 1.4em;
}

.presenter-notes-content li {
  font-size: inherit;
  line-height: inherit;
  color: #f1f5f9;
  margin-bottom: 0.35em;
}

.presenter-notes-content strong {
  color: #38bdf8;
  font-weight: 700;
}

.presenter-notes-content code {
  background: rgba(255, 255, 255, 0.12);
  color: #7dd3fc;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
}

.presenter-notes-empty {
  color: #64748b !important;
  font-style: italic;
}

/* Print / PDF Export */
@media print {
  @page {
    size: 1920px 1080px;
    margin: 0;
  }

  html, body {
    width: 1920px !important;
    height: auto !important;
    overflow: visible !important;
    background: transparent !important;
  }

  .presentation-viewport {
    display: block !important;
    width: 1920px !important;
    height: auto !important;
    position: static !important;
    overflow: visible !important;
  }

  .presentation-stage {
    transform: none !important;
    position: static !important;
    width: 1920px !important;
    height: auto !important;
    box-shadow: none !important;
  }

  .slide {
    display: block !important;
    position: relative !important;
    width: 1920px !important;
    height: 1080px !important;
    page-break-after: always !important;
    break-after: page !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }

  .slide:last-child {
    page-break-after: avoid !important;
    break-after: avoid !important;
  }

  .slide-controls, .overview-modal, .anim-play-badge, .slide-notes, .presenter-layout {
    display: none !important;
  }
}

/* Auto-bundled Drawlib SVG Fonts */
@font-face {
  font-family: 'drawlib-cjk-japanese-noto-sans-regular';
  src: url('../_assets/fonts/cjk_japanese_noto_sans/regular.otf') format('opentype');
  font-weight: normal;
  font-style: normal;
  font-display: block;
}
@font-face {
  font-family: 'drawlib-cjk-japanese-noto-sans-bold';
  src: url('../_assets/fonts/cjk_japanese_noto_sans/bold.otf') format('opentype');
  font-weight: normal;
  font-style: normal;
  font-display: block;
}
@font-face {
  font-family: 'drawlib-phosphor-regular';
  src: url('../_assets/fonts/phosphor/regular.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
  font-display: block;
}
@font-face {
  font-family: 'drawlib-phosphor-bold';
  src: url('../_assets/fonts/phosphor/bold.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
  font-display: block;
}
@font-face {
  font-family: 'drawlib-roboto-regular';
  src: url('../_assets/fonts/roboto/regular.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
  font-display: block;
}
@font-face {
  font-family: 'drawlib-roboto-mono-regular';
  src: url('../_assets/fonts/roboto_mono/regular.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
  font-display: block;
}
@font-face {
  font-family: 'drawlib-mono-source-code-pro-regular';
  src: url('../_assets/fonts/mono_source_code_pro/regular.otf') format('opentype');
  font-weight: normal;
  font-style: normal;
  font-display: block;
}
@font-face {
  font-family: 'drawlib-phosphor-thin';
  src: url('../_assets/fonts/phosphor/thin.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
  font-display: block;
}