/* style.css - Premium Design System for "Endlich Schluss mit Aufschieberitis" */

@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400..700;1,400..700&family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* ==========================================================================
   1. Theme Variables & Reset
   ========================================================================== */

:root {
  /* Common variables */
  --font-serif: 'Lora', Georgia, serif;
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --transition-speed: 0.3s;
  --border-radius-sm: 8px;
  --border-radius-md: 16px;
  --border-radius-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
  --max-content-width: 720px;
  
  /* Font size scale */
  --font-size-base: 18px;
}

/* Theme definition scopes */
.theme-light {
  color-scheme: light;
  --bg-primary: #fcfbf7;
  --bg-secondary: #f4eee2;
  --bg-tertiary: #ebe3d3;
  --text-primary: #2b2825;
  --text-secondary: #5c554e;
  --text-muted: #8c8276;
  --accent-color: #cc5833;
  --accent-light: rgba(204, 88, 51, 0.1);
  --accent-glow: rgba(204, 88, 51, 0.2);
  --border-color: #e6ded0;
  --card-bg: rgba(244, 238, 226, 0.7);
  --glass-bg: rgba(252, 251, 247, 0.85);
  --glass-border: rgba(230, 222, 208, 0.5);
  --scrollbar-thumb: #d0c5b3;
  --scrollbar-track: #f4eee2;
  --success-color: #3b7a57;
  --warning-color: #cf8c15;
  --error-color: #a83232;
}

.theme-sepia {
  color-scheme: light;
  --bg-primary: #f2e6cb;
  --bg-secondary: #ebdcb9;
  --bg-tertiary: #dfcea5;
  --text-primary: #403221;
  --text-secondary: #6e583f;
  --text-muted: #8d785e;
  --accent-color: #b54522;
  --accent-light: rgba(181, 69, 34, 0.1);
  --accent-glow: rgba(181, 69, 34, 0.25);
  --border-color: #dccaa2;
  --card-bg: rgba(235, 220, 185, 0.7);
  --glass-bg: rgba(242, 230, 203, 0.85);
  --glass-border: rgba(220, 202, 162, 0.5);
  --scrollbar-thumb: #cbb489;
  --scrollbar-track: #ebdcb9;
  --success-color: #2f6946;
  --warning-color: #ab710a;
  --error-color: #942525;
}

.theme-dark {
  color-scheme: dark;
  --bg-primary: #121110;
  --bg-secondary: #1a1917;
  --bg-tertiary: #242220;
  --text-primary: #e6e2de;
  --text-secondary: #a8a39d;
  --text-muted: #78736e;
  --accent-color: #f07b54;
  --accent-light: rgba(240, 123, 84, 0.15);
  --accent-glow: rgba(240, 123, 84, 0.3);
  --border-color: #2b2927;
  --card-bg: rgba(26, 25, 23, 0.7);
  --glass-bg: rgba(18, 17, 16, 0.85);
  --glass-border: rgba(43, 41, 39, 0.5);
  --scrollbar-thumb: #3e3a36;
  --scrollbar-track: #1a1917;
  --success-color: #55a878;
  --warning-color: #f0b03a;
  --error-color: #e05c5c;
}

/* Global Reset & Base Styling */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: background-color var(--transition-speed), color var(--transition-speed);
  overflow: hidden;
}

/* Custom Scrollbar support conforming to modern guidelines */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}
::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-color);
}
@supports (scrollbar-color: auto) {
  * {
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
    scrollbar-width: thin;
  }
}

/* ==========================================================================
   2. Main Layout Structure
   ========================================================================== */

#app-container {
  display: flex;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
}

/* Reading Progress Indicator */
#progress-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  z-index: 1000;
  background-color: var(--bg-tertiary);
}

#progress-bar {
  height: 100%;
  width: 0%;
  background-color: var(--accent-color);
  transform-origin: 0% 50%;
  transition: width 0.1s ease-out;
  box-shadow: 0 0 10px var(--accent-glow);
}

/* Sidebar Navigation Drawer */
#sidebar {
  width: 320px;
  min-width: 320px;
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: transform var(--transition-speed) ease, background-color var(--transition-speed);
  z-index: 90;
}

.sidebar-header {
  padding: 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sidebar-header h1 {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.2;
}

.sidebar-header .subtitle {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.sidebar-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 16px 8px;
}

/* Navigation Groups */
.nav-group {
  margin-bottom: 24px;
}

.nav-group-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 0 16px 8px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--border-radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.nav-item:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.nav-item.active {
  background-color: var(--accent-light);
  color: var(--accent-color);
  font-weight: 600;
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 25%;
  height: 50%;
  width: 4px;
  background-color: var(--accent-color);
  border-radius: 0 4px 4px 0;
}

.nav-day-num {
  font-size: 0.7rem;
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  padding: 2px 6px;
  border-radius: 10px;
  font-weight: 600;
  min-width: 40px;
  text-align: center;
}

.nav-item.active .nav-day-num {
  background-color: var(--accent-color);
  color: #fff;
}

.nav-item.completed::after {
  content: '✓';
  position: absolute;
  right: 16px;
  color: var(--success-color);
  font-weight: 700;
  font-size: 0.95rem;
}

/* ==========================================================================
   3. Main Content Container
   ========================================================================== */

#main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100%;
  position: relative;
  overflow: hidden;
}

/* Top Toolbar */
#toolbar {
  height: 64px;
  background-color: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 80;
  transition: background-color var(--transition-speed);
}

.toolbar-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.hamburger-btn {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px;
  display: none; /* Block on mobile */
  align-items: center;
  justify-content: center;
}

.current-chapter-title {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.toolbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Toolbar Control Buttons */
.toolbar-controls {
  display: flex;
  background-color: var(--bg-tertiary);
  padding: 4px;
  border-radius: var(--border-radius-sm);
  gap: 2px;
}

.control-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.control-btn:hover {
  color: var(--text-primary);
}

.control-btn.active {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

/* Font Resizing Widget */
.font-resizer {
  display: flex;
  align-items: center;
  background-color: var(--bg-tertiary);
  border-radius: var(--border-radius-sm);
  padding: 2px;
}

.font-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
}

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

.font-btn.font-decrease {
  font-size: 0.75rem;
}

.font-btn.font-increase {
  font-size: 1.1rem;
}

/* Dashboard Toggle Tool */
.dashboard-btn {
  background-color: var(--accent-color);
  color: #fff;
  border: none;
  padding: 8px 16px;
  border-radius: var(--border-radius-sm);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 12px var(--accent-light);
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 8px;
}

.dashboard-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px var(--accent-glow);
}

/* Reader Container */
#reader-viewport {
  flex: 1;
  overflow-y: auto;
  padding: 60px 24px;
  display: flex;
  justify-content: center;
  scroll-behavior: smooth;
}

#reader-content {
  width: 100%;
  max-width: var(--max-content-width);
  min-height: 50vh;
}

/* ==========================================================================
   4. Ebook Content Styling (Lora Typography)
   ========================================================================== */

.ebook-part-tag {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-color);
  font-weight: 700;
  margin-bottom: 8px;
}

.ebook-day-tag {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  background-color: var(--accent-light);
  color: var(--accent-color);
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-weight: 600;
  margin-bottom: 24px;
}

.ebook-chapter-num {
  font-family: var(--font-sans);
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.ebook-title {
  font-family: var(--font-sans);
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.15;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: -0.03em;
}

.ebook-subtitle {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-style: italic;
  line-height: 1.4;
  color: var(--text-secondary);
  margin-bottom: 48px;
  font-weight: 400;
}

/* Book Body Text */
.ebook-body {
  font-family: var(--font-serif);
  line-height: 1.75;
  font-size: 1rem; /* Dynamically adjusted via style.fontSize */
  color: var(--text-primary);
}

.ebook-body p {
  margin-bottom: 24px;
  text-align: justify;
}

.ebook-body h3 {
  font-family: var(--font-sans);
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.3;
  margin-top: 48px;
  margin-bottom: 16px;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.ebook-body hr {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 40px 0;
}

.ebook-body strong {
  font-weight: 700;
}

.ebook-body em {
  font-style: italic;
}

.ebook-body blockquote {
  border-left: 4px solid var(--accent-color);
  padding-left: 24px;
  margin: 32px 0;
  color: var(--text-secondary);
  font-style: italic;
}

.ebook-body blockquote p {
  margin-bottom: 0;
}

.ebook-body ul {
  list-style-type: none;
  padding-left: 20px;
  margin-bottom: 24px;
}

.ebook-body ul li {
  position: relative;
  margin-bottom: 12px;
  padding-left: 12px;
}

.ebook-body ul li::before {
  content: "•";
  color: var(--accent-color);
  font-weight: bold;
  font-size: 1.2rem;
  position: absolute;
  left: -8px;
  top: -2px;
}

/* ==========================================================================
   5. Custom SVG / CSS Diagrams
   ========================================================================== */

.diagram-container {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 32px 24px;
  margin: 32px auto;
  max-width: 600px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow-sm);
}

.diagram-svg {
  width: 100%;
  max-height: 280px;
  display: block;
}

.diagram-caption {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  text-align: center;
}

/* Diagram Visual Theme Support & Styling */
.diag-stroke-accent { stroke: var(--accent-color); fill: none; }
.diag-fill-accent { fill: var(--accent-color); }
.diag-text { fill: var(--text-primary); font-family: var(--font-sans); }
.diag-text-secondary { fill: var(--text-secondary); font-family: var(--font-sans); }
.diag-text-muted { fill: var(--text-muted); font-family: var(--font-sans); }
.diag-bg-box { fill: var(--bg-primary); stroke: var(--border-color); }
.diag-bg-accent-box { fill: var(--accent-light); stroke: var(--accent-color); }
.diag-line { stroke: var(--border-color); }
.diag-accent-line { stroke: var(--accent-color); stroke-width: 2.5; }
.diag-dashed-line { stroke: var(--text-muted); stroke-dasharray: 4 4; }

/* Micro-animations */
.diagram-svg circle, 
.diagram-svg rect, 
.diagram-svg path {
  transition: transform var(--transition-speed), fill var(--transition-speed), stroke var(--transition-speed);
}

.diagram-svg:hover .diag-hover-grow {
  transform: scale(1.05);
  transform-origin: center;
}

/* ==========================================================================
   6. Reading Worksheets & Interactivity
   ========================================================================== */

.worksheet-box {
  background-color: var(--card-bg);
  border: 2px solid var(--accent-color);
  border-radius: var(--border-radius-md);
  padding: 32px;
  margin: 48px 0;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.worksheet-box::before {
  content: '🎯 MINI-AUFGABE';
  position: absolute;
  top: 0;
  right: 0;
  background-color: var(--accent-color);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 0 0 0 var(--border-radius-sm);
  letter-spacing: 0.05em;
}

.worksheet-title {
  font-family: var(--font-sans);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.worksheet-body {
  margin-bottom: 24px;
}

.worksheet-input-group {
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.worksheet-label {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.worksheet-textarea {
  width: 100%;
  min-height: 100px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: 12px 16px;
  font-family: var(--font-serif);
  font-size: 0.95rem;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  resize: vertical;
  transition: border-color 0.2s;
}

.worksheet-textarea:focus {
  outline: none;
  border-color: var(--accent-color);
}

.worksheet-input {
  width: 100%;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: 12px 16px;
  font-family: var(--font-serif);
  font-size: 0.95rem;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: border-color 0.2s;
}

.worksheet-input:focus {
  outline: none;
  border-color: var(--accent-color);
}

.worksheet-save-btn {
  background-color: var(--accent-color);
  color: #fff;
  border: none;
  padding: 12px 24px;
  border-radius: var(--border-radius-sm);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s;
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.worksheet-save-btn:hover {
  background-color: #b54522;
}

/* Grid layout for specific worksheets (e.g. Day 2) */
.worksheet-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

/* Day 4 60-Second Timer Style */
.timer-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 24px;
  background-color: var(--bg-secondary);
  border-radius: var(--border-radius-sm);
  margin-bottom: 20px;
  border: 1px solid var(--border-color);
}

.timer-display {
  font-size: 3rem;
  font-weight: 800;
  font-family: var(--font-sans);
  color: var(--accent-color);
}

.timer-controls {
  display: flex;
  gap: 12px;
}

.timer-btn {
  padding: 8px 16px;
  border-radius: var(--border-radius-sm);
  border: none;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font-sans);
}

.timer-btn.start { background-color: var(--success-color); color: #fff; }
.timer-btn.reset { background-color: var(--bg-tertiary); color: var(--text-primary); }

/* Day 13 checklist style */
.energy-checklist {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}

.energy-item {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 0.95rem;
}

.energy-checkbox {
  width: 20px;
  height: 20px;
  accent-color: var(--accent-color);
}

.energy-result {
  padding: 16px;
  border-radius: var(--border-radius-sm);
  background-color: var(--bg-secondary);
  border-left: 4px solid var(--accent-color);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  display: none;
}

/* ==========================================================================
   7. Page Navigation Footer
   ========================================================================== */

.chapter-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 60px;
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
}

.footer-btn {
  background: none;
  border: 1px solid var(--border-color);
  padding: 12px 24px;
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 8px;
}

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

.footer-btn.prev::before { content: "←"; }
.footer-btn.next::after { content: "→"; }

/* ==========================================================================
   8. Dashboard Modal / Panel Overlay
   ========================================================================== */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(5px);
  z-index: 200;
  display: none; /* Block when visible */
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

.modal-container {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  width: 100%;
  max-width: 800px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: translateY(20px);
  transition: transform 0.3s ease;
}

.modal-overlay.open .modal-container {
  transform: translateY(0);
}

.modal-header {
  padding: 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--bg-secondary);
}

.modal-header h2 {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  font-weight: 700;
}

.close-modal-btn {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-body {
  flex: 1;
  overflow-y: auto;
  padding: 32px;
}

.dashboard-summary-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.summary-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: 20px;
}

.summary-card-title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.summary-card-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-color);
  font-family: var(--font-sans);
}

.roadmap-horizontal {
  display: flex;
  justify-content: space-between;
  margin-bottom: 40px;
  padding: 0 10px;
  position: relative;
}

.roadmap-horizontal::before {
  content: '';
  position: absolute;
  top: 24px;
  left: 20px;
  right: 20px;
  height: 2px;
  background-color: var(--border-color);
  z-index: 1;
}

.roadmap-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  position: relative;
  z-index: 2;
  flex: 1;
}

.roadmap-dot {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--bg-primary);
  border: 2px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all 0.3s;
}

.roadmap-step.active .roadmap-dot {
  border-color: var(--accent-color);
  background-color: var(--accent-light);
  color: var(--accent-color);
  box-shadow: 0 0 12px var(--accent-glow);
}

.roadmap-step.completed .roadmap-dot {
  background-color: var(--success-color);
  border-color: var(--success-color);
  color: #fff;
}

.roadmap-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-align: center;
}

.summary-section-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 8px;
}

.dashboard-worksheet-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.dashboard-worksheet-item {
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: 16px 20px;
  background-color: var(--bg-secondary);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.worksheet-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.worksheet-item-tag {
  font-size: 0.75rem;
  background-color: var(--accent-light);
  color: var(--accent-color);
  padding: 2px 8px;
  border-radius: 10px;
  font-weight: 600;
}

.worksheet-item-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.worksheet-item-answer {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  border-left: 2px solid var(--border-color);
  padding-left: 12px;
  margin-top: 4px;
}

.empty-worksheet-state {
  color: var(--text-muted);
  font-style: italic;
  font-size: 0.9rem;
  padding: 12px 0;
}

/* Signature Canvas Style */
.signature-pad-container {
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  background-color: #fff; /* Static white canvas for writing */
  position: relative;
  margin-bottom: 12px;
}

.signature-canvas {
  width: 100%;
  height: 120px;
  cursor: crosshair;
  display: block;
}

/* ==========================================================================
   9. Mobile Responsiveness / Layout Breaks
   ========================================================================== */

@media (max-width: 1024px) {
  #sidebar {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    transform: translateX(-100%);
    box-shadow: var(--shadow-lg);
  }
  
  #sidebar.open {
    transform: translateX(0);
  }
  
  .hamburger-btn {
    display: flex;
  }
  
  #main-content {
    width: 100vw;
  }
  
  #reader-viewport {
    padding: 40px 16px;
  }
}

@media (max-width: 600px) {
  .toolbar-right {
    gap: 8px;
  }
  
  .dashboard-btn span {
    display: none; /* Icon only on extra small */
  }
  
  .dashboard-summary-grid {
    grid-template-columns: 1fr;
  }
  
  .worksheet-grid-3 {
    grid-template-columns: 1fr;
  }
  
  .roadmap-horizontal {
    flex-wrap: wrap;
    gap: 20px;
  }
  
  .roadmap-horizontal::before {
    display: none;
  }
  
  .roadmap-step {
    flex: none;
    width: 45%;
  }
}