/* ==========================================================================
   Zocrates Official Showcase Website — Stylesheet
   Inspired by Zocrates' Native 5-Theme Palette (Slate, AMOLED, Dark, Light, Sepia)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&family=Outfit:wght@600;700;800&display=swap');

:root,
body[data-theme="slate"] {
  --bg-main: #0b1120;
  --bg-elevated: #0f172a;
  --bg-card: rgba(30, 41, 59, 0.72);
  --bg-card-solid: #1e293b;
  --bg-card-hover: rgba(51, 65, 85, 0.85);
  --bg-glass: rgba(15, 23, 42, 0.82);
  --text-main: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-soft: rgba(99, 102, 241, 0.15);
  --accent: #06b6d4;
  --accent-soft: rgba(6, 182, 212, 0.14);
  --success: #10b981;
  --success-soft: rgba(16, 185, 129, 0.15);
  --warning: #f59e0b;
  --warning-soft: rgba(245, 158, 11, 0.15);
  --danger: #ef4444;
  --zotero-red: #cc292b;
  --border: rgba(148, 163, 184, 0.16);
  --border-strong: rgba(99, 102, 241, 0.4);
  --shadow-lg: 0 24px 60px -15px rgba(2, 6, 23, 0.75);
  --shadow-glow: 0 0 45px -10px rgba(99, 102, 241, 0.35);
  --gradient-brand: linear-gradient(135deg, #818cf8 0%, #38bdf8 55%, #34d399 100%);
  --gradient-CTA: linear-gradient(135deg, #6366f1 0%, #0891b2 100%);
  --code-bg: #090d16;
}

body[data-theme="amoled"] {
  --bg-main: #000000;
  --bg-elevated: #09090b;
  --bg-card: rgba(18, 18, 21, 0.88);
  --bg-card-solid: #121215;
  --bg-card-hover: rgba(34, 34, 40, 0.92);
  --bg-glass: rgba(5, 5, 7, 0.88);
  --text-main: #ffffff;
  --text-secondary: #e4e4e7;
  --text-muted: #a1a1aa;
  --primary: #818cf8;
  --primary-hover: #6366f1;
  --primary-soft: rgba(129, 140, 248, 0.18);
  --accent: #22d3ee;
  --accent-soft: rgba(34, 211, 238, 0.15);
  --border: rgba(255, 255, 255, 0.14);
  --border-strong: rgba(129, 140, 248, 0.5);
  --shadow-lg: 0 24px 60px -15px rgba(0, 0, 0, 0.95);
  --code-bg: #050507;
}

body[data-theme="zotero-dark"] {
  --bg-main: #18181b;
  --bg-elevated: #1e1e22;
  --bg-card: rgba(39, 39, 42, 0.85);
  --bg-card-solid: #27272a;
  --bg-card-hover: rgba(63, 63, 70, 0.9);
  --bg-glass: rgba(24, 24, 27, 0.88);
  --text-main: #f4f4f5;
  --text-secondary: #d4d4d8;
  --text-muted: #a1a1aa;
  --primary: #38bdf8;
  --primary-hover: #0284c7;
  --primary-soft: rgba(56, 189, 248, 0.16);
  --accent: #818cf8;
  --accent-soft: rgba(129, 140, 248, 0.16);
  --border: rgba(255, 255, 255, 0.12);
  --border-strong: rgba(56, 189, 248, 0.45);
  --code-bg: #111113;
}

body[data-theme="zotero-light"] {
  --bg-main: #f8fafc;
  --bg-elevated: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.92);
  --bg-card-solid: #ffffff;
  --bg-card-hover: #f8fafc;
  --bg-glass: rgba(255, 255, 255, 0.88);
  --text-main: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-soft: rgba(79, 70, 229, 0.1);
  --accent: #0891b2;
  --accent-soft: rgba(8, 145, 178, 0.1);
  --success: #059669;
  --success-soft: rgba(5, 150, 105, 0.12);
  --warning: #d97706;
  --warning-soft: rgba(217, 119, 6, 0.12);
  --border: rgba(15, 23, 42, 0.1);
  --border-strong: rgba(79, 70, 229, 0.35);
  --shadow-lg: 0 20px 50px -12px rgba(15, 23, 42, 0.1);
  --shadow-glow: 0 10px 35px -10px rgba(79, 70, 229, 0.2);
  --gradient-brand: linear-gradient(135deg, #4f46e5 0%, #0891b2 55%, #059669 100%);
  --code-bg: #0f172a;
}

body[data-theme="sepia"] {
  --bg-main: #f5efe0;
  --bg-elevated: #ece3ce;
  --bg-card: rgba(253, 251, 247, 0.94);
  --bg-card-solid: #fdfbf7;
  --bg-card-hover: #f3ead8;
  --bg-glass: rgba(245, 239, 224, 0.9);
  --text-main: #3d2e1e;
  --text-secondary: #5c4732;
  --text-muted: #856a4d;
  --primary: #b8542e;
  --primary-hover: #964120;
  --primary-soft: rgba(184, 84, 46, 0.12);
  --accent: #2b6cb0;
  --accent-soft: rgba(43, 108, 176, 0.12);
  --success: #15803d;
  --success-soft: rgba(21, 128, 61, 0.12);
  --border: rgba(133, 106, 77, 0.22);
  --border-strong: rgba(184, 84, 46, 0.45);
  --shadow-lg: 0 20px 45px -15px rgba(61, 46, 30, 0.14);
  --shadow-glow: 0 10px 30px -10px rgba(184, 84, 46, 0.22);
  --gradient-brand: linear-gradient(135deg, #b8542e 0%, #854d0e 60%, #15803d 100%);
  --gradient-CTA: linear-gradient(135deg, #b8542e 0%, #964120 100%);
  --code-bg: #231b12;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.65;
  overflow-x: hidden;
  transition: background-color 0.28s ease, color 0.28s ease;
  position: relative;
}

/* Ambient Decorative Background Mesh */
.ambient-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
}

.ambient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(110px);
  opacity: 0.22;
}

.ambient-orb.orb-1 {
  width: 580px;
  height: 580px;
  background: var(--primary);
  top: -180px;
  left: -120px;
}

.ambient-orb.orb-2 {
  width: 500px;
  height: 500px;
  background: var(--accent);
  top: 22%;
  right: -160px;
}

.ambient-orb.orb-3 {
  width: 620px;
  height: 620px;
  background: var(--success);
  bottom: 8%;
  left: 15%;
  opacity: 0.12;
}

h1, h2, h3, h4, .brand-title {
  font-family: 'Outfit', 'Inter', sans-serif;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

code, pre, .mono {
  font-family: 'JetBrains Mono', monospace;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: 100%;
  max-width: 1260px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---- Top Sticky Navbar ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background 0.25s ease, border-color 0.25s ease;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 1rem;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-logo {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  object-fit: contain;
  background: rgba(255, 255, 255, 0.94);
  padding: 3px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  flex-shrink: 0;
}

.brand-text-col {
  display: flex;
  flex-direction: column;
  justify-content: center;
  line-height: 1.1;
}

.brand-title {
  font-family: 'Outfit', sans-serif;
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  color: var(--text-main);
}

.brand-subtitle {
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-top: 0.15rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s ease;
  white-space: nowrap;
}

.nav-links a:hover {
  color: var(--primary);
}

.nav-pill-soon {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.1rem 0.42rem;
  border-radius: 99px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* ---- Floating Theme Dock (Custom Polished Popover) ---- */
.floating-theme-dock {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 999;
  font-family: 'Inter', sans-serif;
}

.theme-dock-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--bg-card-solid);
  color: var(--text-main);
  border: 1px solid var(--border-strong);
  padding: 0.42rem 0.78rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all 0.2s ease;
  user-select: none;
}

.theme-dock-btn:hover,
.theme-dock-btn[aria-expanded="true"] {
  border-color: var(--primary);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.38);
  transform: translateY(-1px);
}

.theme-dock-icon {
  font-size: 0.88rem;
  line-height: 1;
}

.theme-dock-current {
  color: var(--text-main);
  letter-spacing: 0.01em;
}

.theme-dock-arrow {
  font-size: 0.68rem;
  color: var(--text-muted);
  transition: transform 0.2s ease;
  margin-left: 0.1rem;
}

.theme-dock-btn[aria-expanded="true"] .theme-dock-arrow {
  transform: rotate(180deg);
}

/* Custom Theme Menu Popover */
.theme-menu-popover {
  position: absolute;
  bottom: calc(100% + 10px);
  right: 0;
  width: 175px;
  background: var(--bg-card-solid);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  padding: 0.4rem;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(8px) scale(0.96);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
  z-index: 1000;
}

.theme-menu-popover.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.theme-menu-header {
  font-size: 0.66rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.3rem 0.5rem 0.2rem;
}

.theme-menu-item {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.42rem 0.55rem;
  border-radius: 8px;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  width: 100%;
  transition: background 0.15s ease, color 0.15s ease;
}

.theme-menu-item:hover {
  background: var(--primary-soft);
  color: var(--primary);
}

.theme-menu-item.active {
  background: var(--primary-soft);
  color: var(--primary);
  font-weight: 700;
}

.theme-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.theme-name {
  flex-grow: 1;
}

.theme-check {
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--primary);
  opacity: 0;
  transition: opacity 0.15s ease;
}

.theme-menu-item.active .theme-check {
  opacity: 1;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.68rem 1.3rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.93rem;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-CTA);
  color: #ffffff;
  box-shadow: 0 8px 24px -6px rgba(99, 102, 241, 0.55);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 28px -6px rgba(99, 102, 241, 0.75);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-main);
  border-color: var(--border);
}

.btn-secondary:hover {
  border-color: var(--primary);
  background: var(--bg-card-hover);
}

.btn-sm {
  padding: 0.48rem 0.95rem;
  font-size: 0.84rem;
  border-radius: 8px;
}

/* ---- Hero Section ---- */
.hero-section {
  padding: 4.5rem 0 3.5rem;
  position: relative;
}

.hero-header {
  text-align: center;
  max-width: 920px;
  margin: 0 auto 3rem;
}

.eyebrow-banner {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.38rem 0.95rem;
  border-radius: 999px;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  font-size: 0.83rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-glow);
}

.eyebrow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 10px var(--success);
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 4.1rem);
  font-weight: 800;
  margin-bottom: 1.25rem;
  letter-spacing: -0.03em;
}

.gradient-text {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-subtitle {
  font-size: clamp(1.08rem, 1.8vw, 1.26rem);
  color: var(--text-secondary);
  max-width: 780px;
  margin: 0 auto 2rem;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}

.hero-trust-pills {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.trust-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
}

/* ---- Interactive Split-Pane Zotero + Zocrates Workbench Mockup ---- */
.workbench-frame {
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: 18px;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  overflow: hidden;
  margin-top: 1rem;
}

.workbench-titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1.1rem;
  background: rgba(15, 23, 42, 0.65);
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 0.5rem;
}

.window-dots {
  display: flex;
  gap: 0.45rem;
}

.window-dots span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.window-dots span:nth-child(1) { background: #ef4444; }
.window-dots span:nth-child(2) { background: #f59e0b; }
.window-dots span:nth-child(3) { background: #10b981; }

.workbench-tabs {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.workbench-tab {
  padding: 0.22rem 0.75rem;
  border-radius: 6px;
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 0.76rem;
  font-weight: 500;
  border: 1px solid var(--border);
}

.workbench-tab.active {
  border-color: var(--primary);
  color: var(--text-main);
}

.workbench-tab.flash-tab {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
  box-shadow: 0 0 8px rgba(59, 130, 246, 0.35);
}

.workbench-split {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  min-height: 540px;
}

/* Left Pane: Simulated Zotero 10 PDF Reader */
.zotero-reader-pane {
  padding: 1.35rem;
  border-right: 1px solid var(--border);
  background: var(--bg-main);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: box-shadow 0.3s ease;
}

.zotero-reader-pane.flash-pane {
  box-shadow: inset 0 0 0 2px rgba(16, 185, 129, 0.4);
}

.reader-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0.85rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.78rem;
  white-space: nowrap;
  gap: 0.75rem;
  overflow: hidden;
}

.reader-status-label {
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 500;
}

.reader-outline-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  flex-shrink: 0;
  white-space: nowrap;
  transition: all 0.3s ease;
}

.reader-outline-badge.active-jump {
  background: rgba(16, 185, 129, 0.2);
  border-color: var(--success);
  color: var(--success);
}

.pdf-page-canvas {
  background: var(--bg-card-solid);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.4rem;
  font-size: 0.86rem;
  color: var(--text-secondary);
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.pdf-paper-header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.75rem;
}

.pdf-paper-title {
  font-weight: 700;
  color: var(--text-main);
  font-size: 0.96rem;
}

.pdf-paper-meta {
  font-size: 0.76rem;
  color: var(--text-muted);
}

.pdf-section-heading {
  font-weight: 700;
  color: var(--text-main);
  font-size: 0.88rem;
  margin-top: 0.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
  border-left: 3px solid transparent;
  transition: all 0.3s ease;
}

.pdf-section-heading.flash-active {
  background: rgba(16, 185, 129, 0.14);
  border-left-color: var(--success);
  box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.3);
  transform: translateX(3px);
}

.pdf-outline-dest-tag {
  font-size: 0.68rem;
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--success);
  opacity: 0;
  transform: scale(0.95);
  transition: all 0.25s ease;
  white-space: nowrap;
}

.pdf-section-heading.flash-active .pdf-outline-dest-tag {
  opacity: 1;
  transform: scale(1);
}

.pdf-passage-text {
  color: var(--text-secondary);
  line-height: 1.6;
}

.pdf-area-crop-box {
  border: 2px dashed var(--accent);
  background: var(--accent-soft);
  border-radius: 8px;
  padding: 0.85rem;
  position: relative;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.pdf-area-crop-box:hover {
  transform: scale(1.01);
  border-color: var(--primary);
}

.crop-box-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.mini-chart-bars {
  display: flex;
  align-items: flex-end;
  gap: 0.6rem;
  height: 58px;
  padding: 0.4rem 0.5rem 0;
}

.chart-bar-group {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.chart-bar {
  width: 100%;
  border-radius: 4px 4px 0 0;
  background: var(--gradient-CTA);
}

.chart-bar-label {
  font-size: 0.68rem;
  color: var(--text-muted);
}

.context-menu-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.55rem;
  padding: 0.3rem 0.65rem;
  border-radius: 6px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  color: var(--text-main);
  font-size: 0.73rem;
  font-weight: 600;
}

/* Right Pane: Simulated Zocrates Sidebar */
.zocrates-sidebar-pane {
  display: flex;
  flex-direction: column;
  background: var(--bg-elevated);
  position: relative;
}

.sidebar-top-bar {
  padding: 0.75rem 1.1rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(99, 102, 241, 0.06);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.95rem;
}

.sidebar-brand img {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  background: #fff;
  padding: 2px;
}

.chips-strip {
  padding: 0.45rem 1.15rem;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-card);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.45rem;
  font-size: 0.74rem;
}

.context-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.22rem 0.6rem;
  border-radius: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: all 0.3s ease;
}

.context-chip.flash-chip {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.45);
  transform: translateY(-1px);
}

.context-chip.excerpt-pill {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
}

.chat-stream-area {
  padding: 1rem 1.15rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  font-size: 0.86rem;
  position: relative;
}

.chat-bubble-user {
  align-self: flex-end;
  background: var(--primary);
  color: #ffffff;
  padding: 0.6rem 0.9rem;
  border-radius: 12px 12px 2px 12px;
  max-width: 88%;
  font-size: 0.83rem;
}

.chat-bubble-assistant {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 0.95rem 1.05rem;
  border-radius: 12px 12px 12px 2px;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.chat-bubble-assistant.citations-hidden .citation-pill,
.chat-bubble-assistant.citations-hidden .evidence-popover,
.chat-bubble-assistant.citations-hidden .two-tier-sources {
  display: none !important;
}

/* Math Formula & Rendered Typography */
.math-formula-block {
  background: var(--bg-main);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.65rem 0.9rem;
  text-align: center;
  font-family: "Cambria Math", "Latin Modern Math", "TeX Gyre Termes Math", "Times New Roman", Georgia, serif;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  color: var(--text-main);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.15);
}

.math-rendered {
  display: inline-block;
  font-style: normal;
}

.math-rendered i,
.math-inline i {
  font-family: "Cambria Math", "Times New Roman", Georgia, serif;
  font-style: italic;
}

.math-rendered sub,
.math-rendered sup,
.math-inline sub,
.math-inline sup {
  font-size: 0.72em;
  font-family: inherit;
}

.pdf-equation-text {
  font-size: 0.82rem;
  color: var(--text-muted);
  padding: 0.35rem 0;
  line-height: 1.5;
  font-family: "Cambria Math", "Times New Roman", Georgia, serif;
}

.pdf-equation-text i {
  font-style: italic;
}

.citation-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.12rem 0.55rem;
  margin: 0 0.15rem;
  border-radius: 6px;
  background: var(--primary-soft);
  color: var(--primary);
  border: 1px solid var(--border-strong);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  vertical-align: baseline;
  transition: all 0.18s ease;
}

.citation-pill:hover,
.citation-pill.active {
  background: var(--primary);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.35);
}

/* Interactive Evidence Peek Popover */
.evidence-popover {
  background: var(--bg-card-solid);
  border: 1px solid var(--primary);
  border-radius: 10px;
  padding: 0.85rem;
  box-shadow: 0 14px 35px rgba(0, 0, 0, 0.45);
  font-size: 0.79rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  animation: fadeInPop 0.2s ease;
}

@keyframes fadeInPop {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.popover-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.popover-doc-title {
  font-weight: 700;
  color: var(--text-main);
}

.confidence-badge {
  padding: 0.14rem 0.5rem;
  border-radius: 99px;
  font-size: 0.7rem;
  font-weight: 700;
  background: var(--success-soft);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.35);
}

.popover-section-crumb {
  font-size: 0.73rem;
  color: var(--accent);
  font-family: 'JetBrains Mono', monospace;
}

.popover-quote {
  font-style: italic;
  color: var(--text-secondary);
  background: var(--bg-main);
  padding: 0.5rem 0.65rem;
  border-left: 3px solid var(--primary);
  border-radius: 4px;
}

.popover-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

.popover-action-status {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--success);
  margin-left: auto;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.popover-action-status.show {
  opacity: 1;
}

.popover-btn {
  padding: 0.28rem 0.65rem;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 600;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-main);
  cursor: pointer;
}

.popover-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* Two-Tier Sources Mini Footer */
.two-tier-sources {
  border-top: 1px solid var(--border);
  padding-top: 0.6rem;
  font-size: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.tier-heading {
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.tier-list {
  list-style: none;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.tier-2-details summary {
  cursor: pointer;
  color: var(--text-secondary);
  font-weight: 600;
  user-select: none;
}

/* Assistant Message Action Bar (at bottom of message bubble) */
.message-action-bar {
  margin-top: 0.85rem;
  padding-top: 0.65rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.message-action-left {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.message-action-meta {
  font-size: 0.71rem;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
}

.message-action-buttons {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.message-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.26rem 0.58rem;
  border-radius: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.74rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

.message-action-btn:hover {
  border-color: var(--primary);
  color: var(--text-main);
  background: var(--primary-soft);
}

.message-action-btn.active-pill {
  border-color: rgba(59, 130, 246, 0.4);
  background: var(--primary-soft);
  color: var(--primary);
}

.message-action-btn.muted-pill {
  border-style: dashed;
  color: var(--text-muted);
  background: transparent;
}

/* Predictive Ghost Text Input Bar */
.ghost-input-bar {
  margin: 0 1.15rem 1rem;
  padding: 0.65rem 0.85rem;
  background: var(--bg-main);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.8rem;
  cursor: pointer;
  transition: border-color 0.2s ease;
}

.ghost-input-bar:hover {
  border-color: var(--accent);
}

.ghost-text-content {
  color: var(--text-muted);
  font-style: italic;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ghost-text-content.accepted {
  color: var(--text-main);
  font-style: normal;
  font-weight: 500;
}

.tab-key-badge {
  padding: 0.18rem 0.5rem;
  border-radius: 5px;
  background: var(--primary-soft);
  color: var(--primary);
  border: 1px solid var(--border-strong);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  font-weight: 700;
  flex-shrink: 0;
}

/* ---- Section Scaffolding ---- */
.section {
  padding: 5.5rem 0;
  position: relative;
}

.section-alt {
  background: rgba(15, 23, 42, 0.35);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

body[data-theme="zotero-light"] .section-alt {
  background: rgba(241, 245, 249, 0.7);
}

.section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 3.5rem;
}

.section-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 0.28rem 0.8rem;
  border-radius: 999px;
  margin-bottom: 0.9rem;
}

.section-title {
  font-size: clamp(1.9rem, 3.5vw, 2.75rem);
  font-weight: 800;
  margin-bottom: 1rem;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.06rem;
}

/* ---- Philosophy Callout Card (Why Zocrates) ---- */
.philosophy-callout-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 16px;
  padding: 1.5rem 1.85rem;
  margin-bottom: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.philosophy-callout-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
}

.philosophy-callout-text {
  font-size: 1.02rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin: 0;
}

.philosophy-callout-text strong {
  color: var(--text-main);
}

/* ---- 4 Core Commitments Grid ---- */
.commitments-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 1.5rem;
}

.commitment-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.75rem;
  transition: transform 0.22s ease, border-color 0.22s ease;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.commitment-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
}

.commitment-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--primary-soft);
  border: 1px solid var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
}

.commitment-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
}

.commitment-card p {
  font-size: 0.93rem;
  color: var(--text-secondary);
}

/* ---- 3 Flexible Ways to Work (Interactive Mode Explorer) ---- */
.modes-tabs-nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.mode-tab-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem 1.4rem;
  text-align: left;
  cursor: pointer;
  transition: all 0.22s ease;
  color: var(--text-main);
}

.mode-tab-btn:hover {
  border-color: var(--primary);
}

.mode-tab-btn.active {
  background: var(--primary-soft);
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
}

.mode-tab-num {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  display: block;
  margin-bottom: 0.3rem;
}

.mode-tab-title {
  font-family: 'Outfit', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  display: block;
  margin-bottom: 0.25rem;
}

.mode-tab-sub {
  font-size: 0.83rem;
  color: var(--text-muted);
}

.mode-panel {
  display: none;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: 18px;
  padding: 2.25rem;
  box-shadow: var(--shadow-lg);
}

.mode-panel.active {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: 2.5rem;
  align-items: start;
  animation: fadeInPop 0.25s ease;
}

.mode-details {
  min-width: 0;
}

.mode-details h3 {
  font-size: 1.6rem;
  margin-bottom: 0.75rem;
}

.mode-scope-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.28rem 0.75rem;
  border-radius: 99px;
  background: var(--success-soft);
  color: var(--success);
  font-size: 0.78rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.mode-feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-top: 1.1rem;
}

.mode-feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  font-size: 0.94rem;
  color: var(--text-secondary);
}

.mode-feature-list li strong {
  color: var(--text-main);
}

.check-bullet {
  color: var(--success);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

/* Mode Visual Boxes */
.mode-visual-box {
  background: var(--code-bg);
  color: #e2e8f0;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.4rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  min-width: 0;
  max-width: 100%;
  overflow-x: hidden;
}

.tree-root-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.25rem;
  padding-left: 0.35rem;
}

.file-tree-interactive {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.tree-item {
  padding: 0.38rem 0.65rem;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background 0.15s ease;
}

.tree-depth-1 {
  padding-left: 0.65rem;
}

.tree-depth-2 {
  padding-left: 2rem;
}

.tree-guide {
  color: #64748b;
  font-family: 'JetBrains Mono', monospace;
  margin-right: 0.25rem;
}

.tree-file-name {
  display: inline-flex;
  align-items: center;
  font-weight: 600;
  color: #e2e8f0;
}

.tree-file-desc {
  color: #94a3b8;
  font-size: 0.74rem;
}

.tree-item:hover,
.tree-item.active {
  background: rgba(99, 102, 241, 0.22);
  color: #ffffff;
}

.tree-preview-box {
  margin-top: 0.9rem;
  padding: 0.85rem;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.78rem;
  color: #94a3b8;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: break-word;
  max-height: 220px;
  overflow-y: auto;
}

/* ---- Interactive Bento Feature Showcases ---- */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.5rem;
}

.bento-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1.85rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.25rem;
  transition: border-color 0.22s ease;
}

.bento-card:hover {
  border-color: var(--border-strong);
}

.span-7 { grid-column: span 7; }
.span-5 { grid-column: span 5; }
.span-6 { grid-column: span 6; }
.span-12 { grid-column: span 12; }

.bento-tag {
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--primary);
}

.bento-card h3 {
  font-size: 1.38rem;
  margin-top: 0.25rem;
}

.bento-card p {
  color: var(--text-secondary);
  font-size: 0.94rem;
}

/* Interactive Demo Controls Inside Bento Cards */
.interactive-widget {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.widget-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.65rem;
}

.toggle-btn-group {
  display: inline-flex;
  background: var(--bg-main);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.2rem;
  gap: 0.2rem;
}

.toggle-pill-btn {
  padding: 0.3rem 0.7rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
}

.toggle-pill-btn.active {
  background: var(--primary);
  color: #ffffff;
}

/* Candidate Import Card Demo */
.candidate-card-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem;
  border-radius: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  font-size: 0.82rem;
  cursor: pointer;
}

.candidate-card-item.checked {
  border-color: var(--primary);
  background: var(--primary-soft);
}

.candidate-meta-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.35rem;
}

.mini-badge {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.12rem 0.48rem;
  border-radius: 99px;
}

.mini-badge.oa {
  background: var(--success-soft);
  color: var(--success);
}

.mini-badge.novel {
  background: var(--accent-soft);
  color: var(--accent);
}

/* Canvas Graph Demo */
.graph-canvas-wrap {
  position: relative;
  background: var(--bg-main);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  height: 235px;
}

#relations-canvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: pointer;
}

.graph-inspector-pill {
  position: absolute;
  bottom: 10px;
  left: 10px;
  right: 10px;
  background: var(--bg-glass);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 0.45rem 0.75rem;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

/* ---- Local-First Privacy, Security & Compute Architecture ---- */
.privacy-compute-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.75rem;
  margin-bottom: 2.25rem;
}

.arch-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 2rem;
}

.arch-panel.highlight-border {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-glow);
}

.arch-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.security-shield-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.security-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.15rem;
  font-size: 0.85rem;
}

.security-item h4 {
  font-size: 0.95rem;
  margin-bottom: 0.35rem;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.security-item p {
  color: var(--text-muted);
  font-size: 0.81rem;
}

/* ---- Installation Section (GitHub Releases) ---- */
.install-steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.install-step-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.85rem;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.step-number-badge {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--gradient-CTA);
  color: #ffffff;
  font-family: 'Outfit', sans-serif;
  font-weight: 800;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.install-step-card h3 {
  font-size: 1.2rem;
}

.install-step-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.install-callout-banner {
  margin-top: 2rem;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.14) 0%, rgba(6, 182, 212, 0.12) 100%);
  border: 1px solid var(--border-strong);
  border-radius: 16px;
  padding: 1.5rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.25rem;
}

/* ---- Value Matrix Table ---- */
.matrix-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.matrix-search-input {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.65rem 1.15rem;
  color: var(--text-main);
  font-size: 0.9rem;
  min-width: 440px;
  max-width: 580px;
  width: 100%;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.matrix-search-input:focus {
  border-color: var(--primary);
}

.matrix-table-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow-x: auto;
  box-shadow: var(--shadow-lg);
}

.value-matrix-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.91rem;
}

.value-matrix-table th,
.value-matrix-table td {
  padding: 1.05rem 1.35rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.value-matrix-table th {
  background: var(--bg-elevated);
  font-family: 'Outfit', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
}

.value-matrix-table th.col-zocrates {
  color: var(--accent);
}

.value-matrix-table tr:last-child td {
  border-bottom: none;
}

.value-matrix-table tr:hover td {
  background: rgba(99, 102, 241, 0.04);
}

.dim-cell {
  font-weight: 700;
  color: var(--text-main);
  white-space: nowrap;
}

.native-cell {
  color: var(--text-muted);
}

.zocrates-cell {
  color: var(--text-secondary);
}

.zocrates-cell strong {
  color: var(--text-main);
}

/* ---- Footer ---- */
.site-footer {
  padding: 4rem 0 2.5rem;
  border-top: 1px solid var(--border);
  background: var(--bg-elevated);
  font-size: 0.88rem;
  color: var(--text-muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.footer-col h4 {
  color: var(--text-main);
  font-size: 0.95rem;
  margin-bottom: 0.85rem;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-col a:hover {
  color: var(--primary);
}

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ---- Claim Verification Inspector Modal Overlay ---- */
.claims-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(10, 15, 29, 0.78);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.claims-modal-overlay.open {
  display: flex;
  opacity: 1;
}

.claims-modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  width: 100%;
  max-width: 980px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  overflow: hidden;
  animation: claimsModalSlideUp 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes claimsModalSlideUp {
  from {
    opacity: 0;
    transform: scale(0.97) translateY(12px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.claims-modal-header {
  padding: 0.95rem 1.25rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-elevated);
}

.claims-modal-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.claim-modal-tag {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--success);
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 0.15rem 0.5rem;
  border-radius: 9999px;
  margin-left: 0.4rem;
}

.claims-modal-close-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  border-radius: 6px;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  transition: all 0.15s ease;
}

.claims-modal-close-btn:hover {
  background: var(--bg-hover);
  color: var(--text-main);
  border-color: var(--border);
}

.claims-modal-toolbar {
  padding: 0.75rem 1.25rem;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.claims-source-filter-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.claims-source-dropdown {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-main);
  font-size: 0.8rem;
  padding: 0.32rem 0.65rem;
  border-radius: 6px;
  outline: none;
  cursor: pointer;
}

.claims-modal-body {
  overflow-y: auto;
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.claims-table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.claims-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
  text-align: left;
}

.claims-table th {
  background: var(--bg-elevated);
  padding: 0.65rem 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.claims-table td {
  padding: 0.75rem 0.8rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  color: var(--text-main);
  line-height: 1.5;
}

.claims-table tr:last-child td {
  border-bottom: none;
}

.claims-table tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

.claim-idx-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--primary);
  background: var(--primary-soft);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
}

.claim-verdict-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.5rem;
  border-radius: 5px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.claim-verdict-badge.verified {
  background: rgba(16, 185, 129, 0.15);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.35);
}

.claim-verdict-badge.rejected {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.35);
}

.claim-verdict-badge.partial {
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.35);
}

.claim-prob-val {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.76rem;
  color: var(--text-secondary);
  font-weight: 600;
}

.claim-section-tag {
  display: inline-block;
  background: var(--bg-elevated);
  color: var(--accent);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  font-size: 0.73rem;
  margin-top: 0.25rem;
  font-weight: 500;
}

.claim-passage-quote {
  font-size: 0.78rem;
  color: var(--text-secondary);
  background: var(--bg-elevated);
  border-left: 2px solid var(--primary);
  padding: 0.4rem 0.65rem;
  border-radius: 0 4px 4px 0;
  margin: 0;
}

/* ---- Sentence-Level Micro-Attribution ---- */
.sentence-attr-highlight {
  background-color: rgba(16, 185, 129, 0.22);
  border-bottom: 2px solid #10b981;
  border-radius: 2px;
  padding: 1px 3px;
  color: inherit;
}

tr.sentence-attr-highlight {
  background-color: rgba(16, 185, 129, 0.2) !important;
  border-left: 3px solid #10b981;
}

tr.sentence-attr-highlight td {
  background-color: rgba(16, 185, 129, 0.15) !important;
}

.sentence-attr-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.55rem;
  font-size: 0.72rem;
  font-weight: 600;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--primary);
  cursor: pointer;
  margin-top: 0.45rem;
  transition: all 0.15s ease;
}

.sentence-attr-action-btn:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
}

.sentence-attr-note {
  margin-top: 0.45rem;
  padding: 0.45rem 0.65rem;
  border-radius: 6px;
  font-size: 0.73rem;
  line-height: 1.4;
  background: rgba(0, 0, 0, 0.2);
  border-left: 3px solid var(--accent);
}

.sentence-attr-note.full {
  border-left-color: #10b981;
  background: rgba(16, 185, 129, 0.1);
  color: #34d399;
}

.sentence-attr-note.partial {
  border-left-color: #f59e0b;
  background: rgba(245, 158, 11, 0.1);
  color: #fbbf24;
}

[data-theme="zotero-light"] .sentence-attr-highlight,
[data-theme="light"] .sentence-attr-highlight {
  background-color: rgba(16, 185, 129, 0.18);
  border-bottom: 2px solid #059669;
}

[data-theme="zotero-light"] .sentence-attr-note.full,
[data-theme="light"] .sentence-attr-note.full {
  color: #047857;
}

[data-theme="zotero-light"] .sentence-attr-note.partial,
[data-theme="light"] .sentence-attr-note.partial {
  color: #b45309;
}

/* ---- Responsive Breakpoints ---- */
@media (max-width: 1024px) {
  .workbench-split,
  .mode-panel.active,
  .privacy-compute-grid,
  .install-steps-grid {
    grid-template-columns: 1fr;
  }

  .zotero-reader-pane {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .span-7, .span-5, .span-6 {
    grid-column: span 12;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .modes-tabs-nav {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }
}