@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;500;600&family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg-dark: #09090b;
  --bg-panel: #0f0f11;
  --bg-card: #18181b;
  --bg-card-hover: #27272a;
  --border-color: rgba(255, 255, 255, 0.06);
  --border-focus: rgba(240, 127, 92, 0.4);
  --accent-purple: #818cf8;
  --accent-purple-rgb: 129, 140, 248;
  --accent-peach: #f07f5c;
  --accent-peach-rgb: 240, 127, 92;
  --accent-green: #10b981;
  --accent-blue: #3b82f6;
  --accent-orange: #f97316;
  --text-primary: #fafafa;
  --text-secondary: #a1a1aa;
  --text-muted: #52525b;
  --terminal-bg: #09090b;
  --terminal-green: #34d399;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --sidebar-width: 280px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  overflow-x: hidden;
  line-height: 1.6;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-peach);
}

/* Background Gradients removed to avoid slop-style glow */

/* Sidebar Navigation */
.sidebar {
  width: var(--sidebar-width);
  background-color: var(--bg-panel);
  border-right: 1px solid var(--border-color);
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  display: flex;
  flex-direction: flex-col;
  z-index: 100;
  padding: 1.5rem;
  overflow-y: auto;
  transition: transform var(--transition-normal);
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.logo-container {
  width: 36px;
  height: 36px;
  background: var(--bg-dark);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--accent-peach);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.brand-name {
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.5px;
  background: linear-gradient(to right, var(--text-primary), var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex-grow: 1;
}

.nav-header {
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 700;
  letter-spacing: 1px;
  margin: 1rem 0 0.5rem 0.5rem;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 0.75rem;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 8px;
  font-weight: 500;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: 1px solid transparent;
}

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

.nav-link.active {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
}

.nav-link svg {
  width: 18px;
  height: 18px;
  opacity: 0.8;
}

.nav-link.active svg {
  color: var(--accent-peach);
  opacity: 1;
}

/* User Profile / Progress Section in Sidebar */
.progress-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1rem;
  margin-top: auto;
  margin-bottom: 0.5rem;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  margin-bottom: 0.5rem;
}

.progress-title {
  font-weight: 600;
  color: var(--text-primary);
}

.progress-percent {
  font-family: 'Fira Code', monospace;
  color: var(--accent-peach);
  font-weight: bold;
}

.progress-bar-container {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: var(--accent-peach);
  border-radius: 3px;
  transition: width 0.5s ease;
}

.progress-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
}

/* Main Layout Area */
.main-wrapper {
  margin-left: var(--sidebar-width);
  width: calc(100% - var(--sidebar-width));
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header & Search Bar */
.top-header {
  height: 70px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2.5rem;
  background-color: rgba(9, 9, 13, 0.8);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 99;
}

.search-container {
  position: relative;
  width: 350px;
}

.search-container svg {
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
  width: 16px;
  height: 16px;
}

.search-input {
  width: 100%;
  padding: 0.55rem 1rem 0.55rem 2.2rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.85rem;
  outline: none;
  transition: all var(--transition-fast);
}

.search-input:focus {
  background: rgba(255, 255, 255, 0.07);
  border-color: var(--border-focus);
  box-shadow: 0 0 10px rgba(240, 127, 92, 0.15);
}

.search-shortcut {
  position: absolute;
  right: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  font-size: 0.65rem;
  font-family: monospace;
  color: var(--text-muted);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.model-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(240, 127, 92, 0.08);
  border: 1px solid rgba(240, 127, 92, 0.2);
  color: var(--accent-peach);
  padding: 0.35rem 0.75rem;
  border-radius: 20px;
}

.model-dot {
  width: 6px;
  height: 6px;
  background-color: var(--accent-peach);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-peach);
}

/* Content Sections Container */
.content-container {
  padding: 2.5rem;
  flex-grow: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
}

.page-section {
  display: none;
  animation: fadeIn var(--transition-normal);
}

.page-section.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Section Typographies */
.section-title-wrap {
  margin-bottom: 2rem;
}

.section-tag {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--accent-peach);
  font-weight: 700;
  letter-spacing: 1.5px;
  margin-bottom: 0.35rem;
  display: inline-block;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -1px;
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-top: 0.5rem;
  max-width: 800px;
}

/* Cards & Layout systems */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.bento-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.75rem;
  backdrop-filter: blur(10px);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.bento-card:hover {
  background-color: var(--bg-card-hover);
  border-color: var(--accent-peach);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.bento-card.col-4 { grid-column: span 4; }
.bento-card.col-6 { grid-column: span 6; }
.bento-card.col-8 { grid-column: span 8; }
.bento-card.col-12 { grid-column: span 12; }

/* Dashboard Specific Cards */
.hero-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

.hero-layout {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
}

.hero-text {
  flex: 1;
}

.hero-visual {
  flex-shrink: 0;
  width: 320px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
}

.stats-card-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  grid-column: span 12;
}

.stat-item {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.stat-val {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent-peach);
  font-family: 'Fira Code', monospace;
}

.stat-lbl {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 600;
}

/* Card Icons */
.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--accent-peach);
}

.bento-card:hover .card-icon {
  background: rgba(240, 127, 92, 0.1);
  border-color: rgba(240, 127, 92, 0.2);
  color: var(--text-primary);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.3px;
}

.card-text {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Reference Tables */
.table-container {
  overflow-x: auto;
  margin-top: 1rem;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.2);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

th {
  background-color: rgba(255, 255, 255, 0.02);
  color: var(--text-primary);
  font-weight: 600;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
}

td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
  vertical-align: middle;
}

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

tr:hover td {
  background-color: rgba(255, 255, 255, 0.01);
  color: var(--text-primary);
}

/* Badges and tags */
.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-family: 'Fira Code', monospace;
  font-weight: 600;
}

.badge.purple { background: rgba(143, 98, 255, 0.1); border: 1px solid rgba(143, 98, 255, 0.25); color: #c4b5fd; }
.badge.orange { background: rgba(255, 140, 107, 0.1); border: 1px solid rgba(255, 140, 107, 0.25); color: #ffbc99; }
.badge.green { background: rgba(0, 230, 118, 0.1); border: 1px solid rgba(0, 230, 118, 0.25); color: #69f0ae; }
.badge.blue { background: rgba(41, 182, 246, 0.1); border: 1px solid rgba(41, 182, 246, 0.25); color: #81d4fa; }

/* Interactive Keypad Shortcuts */
.keyboard-section {
  display: flex;
  gap: 2rem;
  margin-top: 1.5rem;
}

.keyboard-grid {
  flex: 1;
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.keyboard-row {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
}

.key {
  height: 48px;
  padding: 0 1rem;
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Fira Code', monospace;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  user-select: none;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.key:hover {
  border-color: var(--accent-peach);
  box-shadow: 0 0 12px rgba(240, 127, 92, 0.2);
  transform: translateY(-1px);
}

.key:active {
  transform: translateY(1px);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.key.selected {
  background: var(--accent-peach);
  border-color: var(--accent-peach);
  color: #000000;
  box-shadow: 0 0 15px rgba(240, 127, 92, 0.4);
}

.key.wide {
  min-width: 90px;
}

.shortcut-details-card {
  width: 320px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.shortcut-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.shortcut-key-badge {
  font-family: 'Fira Code', monospace;
  background: rgba(255, 140, 107, 0.1);
  color: var(--accent-peach);
  font-size: 0.8rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  border: 1px solid rgba(255, 140, 107, 0.2);
}

.shortcut-card-body {
  color: var(--text-secondary);
  font-size: 0.9rem;
  flex-grow: 1;
}

.shortcut-card-example {
  background: var(--terminal-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.75rem;
  font-family: 'Fira Code', monospace;
  font-size: 0.8rem;
  color: var(--terminal-green);
  overflow-x: auto;
}

/* Code Blocks & Terminals */
pre {
  background: var(--terminal-bg);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1.25rem;
  font-family: 'Fira Code', monospace;
  font-size: 0.85rem;
  color: #a9b2c3;
  overflow-x: auto;
  margin: 1rem 0;
  position: relative;
}

code {
  font-family: 'Fira Code', monospace;
  background: rgba(255, 255, 255, 0.05);
  padding: 0.15rem 0.35rem;
  border-radius: 4px;
  font-size: 0.85rem;
  color: var(--accent-peach);
}

pre code {
  background: none;
  padding: 0;
  color: inherit;
  font-size: inherit;
}

.copy-code-btn {
  position: absolute;
  right: 0.75rem;
  top: 0.75rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
  font-size: 0.75rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: inherit;
}

.copy-code-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  border-color: var(--accent-purple);
}

.terminal-header {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-bottom: none;
  border-top-left-radius: 10px;
  border-top-right-radius: 10px;
  padding: 0.5rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'Fira Code', monospace;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.td-red { background-color: #ff5f56; }
.td-yellow { background-color: #ffbd2e; }
.td-green { background-color: #27c93f; }

.terminal-title {
  margin-left: 0.5rem;
}

.terminal-wrapper pre {
  border-top-left-radius: 0;
  border-top-right-radius: 0;
  margin-top: 0;
}

/* CLAUDE.md Template Generator Builder */
.builder-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 1rem;
}

.builder-controls {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.builder-group {
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem;
}

.builder-group-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.builder-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

.builder-option-card {
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.02);
  border-radius: 8px;
  padding: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.builder-option-card:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 140, 107, 0.3);
}

.builder-option-card.selected {
  background: rgba(255, 140, 107, 0.05);
  border-color: var(--accent-peach);
}

.builder-option-card input {
  accent-color: var(--accent-peach);
  cursor: pointer;
}

.builder-label {
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

.builder-input-text {
  width: 100%;
  padding: 0.6rem 0.8rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.85rem;
  outline: none;
  transition: border-color var(--transition-fast);
  margin-bottom: 0.75rem;
}

.builder-input-text:focus {
  border-color: var(--accent-peach);
}

.builder-output {
  display: flex;
  flex-direction: column;
}

.builder-output-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.btn-primary {
  background: #ffffff;
  border: 1px solid #ffffff;
  color: #000000;
  padding: 0.6rem 1.2rem;
  font-size: 0.85rem;
  font-weight: 700;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-primary:hover {
  background: rgba(255, 255, 255, 0.9);
  border-color: rgba(255, 255, 255, 0.9);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255, 255, 255, 0.15);
}

.btn-primary:active {
  transform: translateY(1px);
}

/* Hooks Simulator Graphic & Timeline */
.hooks-timeline-wrapper {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-top: 1.5rem;
}

.hooks-timeline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  padding: 2rem 0;
  overflow-x: auto;
}

.hooks-timeline::after {
  content: '';
  position: absolute;
  height: 2px;
  background: var(--border-color);
  left: 5%;
  right: 5%;
  top: 50%;
  z-index: 1;
}

.timeline-node {
  width: 140px;
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: 12px;
  padding: 0.85rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  cursor: pointer;
  z-index: 2;
  transition: all var(--transition-normal);
  position: relative;
}

.timeline-node:hover {
  border-color: var(--accent-peach);
  transform: scale(1.05);
  box-shadow: 0 0 15px rgba(240, 127, 92, 0.2);
}

.timeline-node.active {
  border-color: var(--accent-green);
  background: rgba(16, 185, 129, 0.05);
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.2);
}

.node-title {
  font-weight: 700;
  font-size: 0.8rem;
  margin-bottom: 0.25rem;
}

.node-subtitle {
  font-size: 0.65rem;
  color: var(--text-muted);
}

.hook-simulator-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem;
}

.hook-sim-desc-col {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.hook-sim-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.hook-sim-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hook-sim-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.hook-sim-code-col {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* Skills Compiler Playground */
.skills-studio-grid {
  display: grid;
  grid-template-columns: 4fr 5fr;
  gap: 2rem;
  margin-top: 1rem;
}

.studio-input-column {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.studio-textarea {
  width: 100%;
  height: 250px;
  padding: 1rem;
  background: var(--terminal-bg);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  color: var(--text-primary);
  font-family: 'Fira Code', monospace;
  font-size: 0.85rem;
  outline: none;
  resize: vertical;
}

.studio-textarea:focus {
  border-color: var(--accent-purple);
}

.studio-args-bar {
  display: flex;
  gap: 0.75rem;
}

.studio-output-column {
  display: flex;
  flex-direction: column;
}

.studio-output-wrap {
  flex-grow: 1;
  background: var(--terminal-bg);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.studio-output-header {
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--border-color);
  padding: 0.6rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.studio-output-body {
  padding: 1rem;
  font-family: 'Fira Code', monospace;
  font-size: 0.85rem;
  color: #a9b2c3;
  overflow-y: auto;
  flex-grow: 1;
  white-space: pre-wrap;
}

/* Mastery Checklist Styles */
.checklist-section {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  margin-top: 1rem;
}

.checklist-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.checklist-reset-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.checklist-reset-btn:hover {
  background: rgba(255, 140, 107, 0.1);
  color: var(--accent-peach);
  border-color: var(--accent-peach);
}

.checklist-group {
  margin-bottom: 1.5rem;
}

.checklist-group-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent-purple);
  margin-bottom: 0.75rem;
  border-bottom: 1px solid rgba(143, 98, 255, 0.15);
  padding-bottom: 0.25rem;
}

.checklist-items {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.checklist-item:hover {
  background: rgba(255, 255, 255, 0.02);
  border-color: rgba(255, 255, 255, 0.15);
}

.checklist-item.checked {
  border-color: rgba(0, 230, 118, 0.2);
  background: rgba(0, 230, 118, 0.02);
}

.checklist-item input[type="checkbox"] {
  margin-top: 0.25rem;
  accent-color: var(--accent-green);
  cursor: pointer;
}

.checklist-item-text {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  flex-grow: 1;
}

.checklist-item-title {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

.checklist-item.checked .checklist-item-title {
  text-decoration: line-through;
  color: var(--text-muted);
}

.checklist-item-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.checklist-item.checked .checklist-item-desc {
  color: var(--text-muted);
}

/* Quick Start Cards */
.os-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
}

.os-tab {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.5rem 1rem;
  cursor: pointer;
  border-radius: 6px;
  transition: all var(--transition-fast);
}

.os-tab:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.03);
}

.os-tab.active {
  color: var(--accent-purple);
  background: rgba(143, 98, 255, 0.08);
}

.os-content {
  display: none;
  animation: fadeIn var(--transition-fast);
}

.os-content.active {
  display: block;
}

.install-command-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--terminal-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-family: 'Fira Code', monospace;
  font-size: 0.85rem;
  color: var(--terminal-green);
  margin-bottom: 1rem;
}

.install-command-box button {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-secondary);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.75rem;
  transition: all var(--transition-fast);
}

.install-command-box button:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  border-color: var(--accent-purple);
}

/* Floating Alerts / Notifications */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: #11111a;
  border: 1px solid var(--accent-green);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4), 0 0 15px rgba(0, 230, 118, 0.1);
  color: var(--text-primary);
  padding: 1rem 1.5rem;
  border-radius: 10px;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 1000;
  font-size: 0.9rem;
  font-weight: 500;
  animation: slideIn var(--transition-normal);
}

@keyframes slideIn {
  from { transform: translateX(100%) translateY(20px); opacity: 0; }
  to { transform: translateX(0) translateY(0); opacity: 1; }
}

/* Responsive Layout changes */
@media (max-width: 1024px) {
  :root {
    --sidebar-width: 240px;
  }
  .bento-card.col-4 { grid-column: span 6; }
  .bento-card.col-8 { grid-column: span 12; }
  .keyboard-section { flex-direction: column; }
  .shortcut-details-card { width: 100%; }
  .builder-grid { grid-template-columns: 1fr; }
  .hook-simulator-details { grid-template-columns: 1fr; }
  .skills-studio-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  body {
    flex-direction: column;
  }
  .sidebar {
    position: relative;
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    height: auto;
    padding: 1rem;
  }
  .nav-menu {
    flex-direction: row;
    overflow-x: auto;
    gap: 0.5rem;
    padding-bottom: 0.5rem;
  }
  .nav-header {
    display: none;
  }
  .nav-link {
    white-space: nowrap;
    padding: 0.5rem 0.75rem;
  }
  .progress-card {
    display: none;
  }
  .main-wrapper {
    margin-left: 0;
    width: 100%;
  }
  .top-header {
    padding: 0 1rem;
    flex-direction: column;
    height: auto;
    gap: 0.75rem;
    padding-bottom: 0.75rem;
  }
  .search-container {
    width: 100%;
  }
  .content-container {
    padding: 1rem;
  }
  .bento-card.col-6 { grid-column: span 12; }
  .bento-card.col-4 { grid-column: span 12; }
  .stats-card-container {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-layout {
    flex-direction: column;
  }
  .hero-visual {
    width: 100%;
  }
}