/* =============================================
   REPORT PAGE — Professional Academic Layout
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Space+Grotesk:wght@400;500;600;700&family=Lora:ital,wght@0,400;0,500;0,600;1,400;1,500&display=swap');

/* ---------- Root Variables ---------- */
:root {
  --bg-body: #07070e;
  --bg-paper: #0c0c18;
  --bg-card: rgba(18, 18, 36, 0.6);
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-accent: rgba(155, 109, 255, 0.15);
  --text-primary: #e8e6f0;
  --text-body: #b8b4c8;
  --text-muted: #706e82;
  --accent-purple: #9b6dff;
  --accent-coral: #f0766b;
  --accent-blue: #5b87f5;
  --accent-cyan: #4fd1d9;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
  --content-width: 720px;
  --wide-width: 880px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Lora', Georgia, serif;
  background: var(--bg-body);
  color: var(--text-body);
  line-height: 1.9;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: rgba(155, 109, 255, 0.25);
  color: var(--text-primary);
}

/* ---------- Top Navigation Bar ---------- */
.report-topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 32px;
  background: rgba(7, 7, 14, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
}

/* ---------- Navigation Tabs ---------- */
.app-tabs {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin: 0;
  flex: 1;
}

.app-tab {
  padding: 6px 20px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  text-decoration: none;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.15s ease;
  border: 1px solid transparent;
}

.app-tab:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

.app-tab.active {
  background: rgba(240, 118, 107, 0.15);
  color: var(--accent-coral);
  border-color: rgba(240, 118, 107, 0.3);
}

.report-topbar__back {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  text-decoration: none;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.82rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.report-topbar__back:hover {
  color: var(--text-primary);
}

.report-topbar__actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-edit {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-sm);
  background: rgba(155, 109, 255, 0.08);
  color: var(--text-muted);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-edit:hover {
  background: rgba(155, 109, 255, 0.15);
  color: var(--text-primary);
}

.btn-edit.active {
  background: rgba(155, 109, 255, 0.2);
  border-color: var(--accent-purple);
  color: var(--accent-purple);
}

.btn-export {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-muted);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-export:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
}

/* ---------- Report Container ---------- */
.report {
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: 80px 32px 120px;
}

/* ---------- Title Block ---------- */
.report-title-block {
  text-align: center;
  margin-bottom: 64px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border-subtle);
}

.report-title-block__course {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent-purple);
  margin-bottom: 20px;
}

.report-title-block__title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.report-title-block__subtitle {
  font-family: 'Lora', Georgia, serif;
  font-size: 1.1rem;
  font-style: italic;
  color: var(--text-muted);
  line-height: 1.5;
  max-width: 540px;
  margin: 0 auto 24px;
}

.report-title-block__meta {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.report-title-block__meta span {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ---------- Table of Contents ---------- */
.report-toc {
  max-width: var(--content-width);
  margin: 0 auto 56px;
  padding: 28px 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

.report-toc__title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent-purple);
  margin-bottom: 16px;
}

.report-toc__list {
  list-style: none;
  columns: 2;
  column-gap: 32px;
}

.report-toc__list li {
  break-inside: avoid;
  margin-bottom: 8px;
}

.report-toc__list a {
  color: var(--text-body);
  text-decoration: none;
  font-family: 'Inter', sans-serif;
  font-size: 0.88rem;
  transition: color 0.2s;
  display: flex;
  gap: 8px;
}

.report-toc__list a:hover {
  color: var(--text-primary);
}

.report-toc__list .toc-num {
  color: var(--accent-coral);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 0.75rem;
  min-width: 20px;
}

/* ---------- Section ---------- */
.report-section {
  max-width: var(--content-width);
  margin: 0 auto 48px;
}

.report-section__heading {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
  letter-spacing: -0.3px;
}

.report-section__subheading {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-coral);
  margin-top: 36px;
  margin-bottom: 16px;
}

.report-section__body {
  font-size: 1rem;
  line-height: 1.9;
  color: var(--text-body);
}

.report-section__body p {
  margin-bottom: 1.2em;
  text-indent: 0;
}

.report-section__body strong {
  color: var(--text-primary);
  font-weight: 600;
}

.report-section__body em {
  color: var(--text-primary);
}

/* ---------- Timestamps ---------- */
.analysis-timestamp {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--accent-coral);
  text-decoration: none;
  font-family: 'Space Grotesk', monospace;
  font-weight: 600;
  font-size: 0.82em;
  padding: 2px 8px;
  background: rgba(240, 118, 107, 0.08);
  border-radius: 4px;
  border: 1px solid rgba(240, 118, 107, 0.12);
  cursor: pointer;
  transition: all 0.2s;
}

.analysis-timestamp:hover {
  background: rgba(240, 118, 107, 0.15);
  border-color: rgba(240, 118, 107, 0.3);
}

.analysis-timestamp::before {
  content: '▶';
  font-size: 0.55em;
  opacity: 0.6;
}

/* ---------- Analysis List ---------- */
.analysis-list {
  list-style: none;
  padding: 0;
  margin: 20px 0;
}

.analysis-list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 16px;
  line-height: 1.8;
}

.analysis-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 11px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent-coral);
}

/* ---------- Figure ---------- */
.report-figure {
  max-width: var(--wide-width);
  margin: 40px auto;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: rgba(0, 0, 0, 0.25);
}

.report-figure__svg-wrap {
  display: flex;
  justify-content: center;
  padding: 24px;
}

.report-figure__svg-wrap svg {
  max-width: 600px;
  width: 100%;
  height: auto;
}

.report-figure__caption {
  padding: 16px 24px;
  font-family: 'Inter', sans-serif;
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--text-muted);
  border-top: 1px solid var(--border-subtle);
  background: rgba(0, 0, 0, 0.15);
}

.report-figure__caption strong {
  color: var(--accent-coral);
}

.soundbox-callout {
  max-width: var(--wide-width);
  margin: 28px auto 32px;
  padding: 18px 22px;
  border: 1px solid rgba(240, 118, 107, 0.18);
  border-radius: var(--radius-md);
  background: rgba(240, 118, 107, 0.06);
  font-family: 'Inter', sans-serif;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--text-body);
}

.soundbox-callout__link {
  color: var(--accent-coral);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid rgba(240, 118, 107, 0.35);
}

.soundbox-callout__link:hover {
  border-bottom-color: var(--accent-coral);
}

/* ---------- Bibliography ---------- */
.bib-list {
  list-style: none;
  padding: 0;
}

.bib-list li {
  padding: 14px 0;
  padding-left: 2.2em;
  text-indent: -2.2em;
  border-bottom: 1px solid var(--border-subtle);
  font-family: 'Inter', sans-serif;
  font-size: 0.88rem;
  line-height: 1.7;
}

.bib-list li:last-child {
  border-bottom: none;
}

.bib-list a {
  color: var(--accent-coral);
  text-decoration: none;
  border-bottom: 1px solid rgba(240, 118, 107, 0.15);
  transition: border-color 0.2s;
}

.bib-list a:hover {
  border-color: var(--accent-coral);
}

.bib-list em {
  color: var(--text-primary);
}

/* ---------- Edit Mode ---------- */
.edit-mode .report-section__body,
.edit-mode .report-section__heading,
.edit-mode .report-section__subheading {
  cursor: text;
}

.edit-mode .report-section__body[contenteditable="true"] {
  outline: none;
  border: 1px dashed rgba(155, 109, 255, 0.15);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin: -16px;
  margin-bottom: 0;
  transition: border-color 0.2s, background 0.2s;
}

.edit-mode .report-section__body[contenteditable="true"]:focus,
.edit-mode .report-section__body[contenteditable="true"]:focus-within {
  border-color: rgba(155, 109, 255, 0.3);
  background: rgba(155, 109, 255, 0.02);
}

.edit-mode .report-section__heading[contenteditable="true"],
.edit-mode .report-section__subheading[contenteditable="true"] {
  outline: none;
  border-radius: 4px;
  padding: 2px 6px;
  margin-left: -6px;
}

.edit-mode .report-section__heading[contenteditable="true"]:focus,
.edit-mode .report-section__subheading[contenteditable="true"]:focus {
  background: rgba(155, 109, 255, 0.04);
}

.edit-mode .report-section {
  position: relative;
}

.edit-mode .report-section::after {
  content: '✎';
  position: absolute;
  top: 0;
  right: 0;
  font-size: 0.7rem;
  color: var(--accent-purple);
  opacity: 0.35;
  pointer-events: none;
}

/* ---------- Toast ---------- */
.edit-toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(16px);
  background: rgba(20, 20, 36, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(155, 109, 255, 0.2);
  border-radius: var(--radius-sm);
  padding: 10px 20px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-primary);
  z-index: 200;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
}

.edit-toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .report {
    padding: 48px 20px 100px;
  }

  .report-title-block__title {
    font-size: 1.6rem;
  }

  .report-toc__list {
    columns: 1;
  }

  .report-topbar {
    padding: 10px 16px;
  }

  .report-section__body {
    font-size: 0.92rem;
  }
}

}

@media print {
  .report-topbar { display: none; }
  body { background: #fff; color: #111; }
  .report-section__body { color: #222; }
  .report-section__heading { color: #000; }
  .report-toc { background: #f5f5f5; }
}

/* ---------- Audio Snippet Links ---------- */
.audio-snippet-link {
  background-color: rgba(240, 118, 107, 0.15);
  border-bottom: 1px dashed var(--accent-coral);
  color: var(--text-primary);
  cursor: pointer;
  padding: 0 4px;
  border-radius: 2px;
  transition: all 0.2s ease;
  position: relative;
}

.audio-snippet-link:hover {
  background-color: rgba(240, 118, 107, 0.3);
}

.audio-snippet-link::after {
  content: '▶';
  font-family: 'Space Grotesk', monospace;
  font-size: 0.6em;
  margin-left: 4px;
  color: var(--accent-coral);
  opacity: 0.8;
  vertical-align: middle;
}

/* ---------- Floating Edit Toolbar ---------- */
.snippet-edit-toolbar {
  position: absolute;
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  display: flex;
  gap: 8px;
  align-items: center;
  z-index: 1000;
  box-shadow: 0 4px 12px rgba(0,0,0,0.5);
  transform: translate(-50%, -100%);
  margin-top: -10px;
}
.snippet-edit-toolbar.hidden {
  display: none;
}
.snippet-edit-toolbar input {
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  padding: 4px 8px;
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  border-radius: 4px;
  width: 70px;
}
.snippet-edit-toolbar input[name="stems"] {
  width: 140px;
}
.snippet-edit-toolbar button {
  background: var(--accent-purple);
  color: #fff;
  border: none;
  padding: 4px 10px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.8rem;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
}
.snippet-edit-toolbar button:hover {
  background: #a87dff;
}

/* ---------- Mini Player Modal ---------- */
.snippet-player-modal {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 320px;
  background: rgba(12, 12, 24, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 32px rgba(0,0,0,0.6);
  z-index: 500;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  transform-origin: bottom right;
}

.snippet-player-modal.hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px) scale(0.95);
}

.snippet-player-modal.expanded {
  width: 800px;
  max-width: 90vw;
  bottom: 50%;
  right: 50%;
  transform: translate(50%, 50%);
}

.snippet-player-modal.expanded.hidden {
  transform: translate(50%, calc(50% + 20px)) scale(0.95);
}

.sp-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid var(--border-subtle);
}

.sp-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sp-actions {
  display: flex;
  gap: 8px;
}

.sp-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.sp-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.1);
}

.sp-canvas-wrap {
  width: 100%;
  height: 120px;
  position: relative;
  background: #000;
}

.snippet-player-modal.expanded .sp-canvas-wrap {
  height: 240px;
}

.sp-canvas-wrap canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.sp-loading {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.6);
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  z-index: 10;
}

.sp-loading.hidden {
  display: none;
}

.sp-controls {
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.sp-play-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent-purple);
  border: none;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.2s, background 0.2s;
}

.sp-play-btn:hover {
  transform: scale(1.05);
  background: #a87dff;
}

.sp-play-btn svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.sp-progress {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 12px;
}

.sp-time {
  font-family: 'Space Grotesk', monospace;
  font-size: 0.8rem;
  color: var(--text-muted);
  width: 40px;
  text-align: right;
}

.sp-bar-wrap {
  flex: 1;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  position: relative;
  cursor: pointer;
}

.sp-bar-fill {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  background: var(--accent-coral);
  border-radius: 3px;
  width: 0%;
  pointer-events: none;
}