/* ============================================
   PseudoCode Editor - Codein & JNC EIRL
   Complete Stylesheet
   ============================================ */

/* ---------- Variables / Themes ---------- */
:root {
  --font-sans: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Cascadia Code', 'Consolas', monospace;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,.12);
  --shadow-lg: 0 8px 30px rgba(0,0,0,.18);
  --shadow-xl: 0 16px 50px rgba(0,0,0,.25);
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  --accent: #6c5ce7;
  --accent-light: #a29bfe;
  --accent-dark: #5a4bd1;
  --accent-glow: rgba(108,92,231,.35);
  --gradient-accent: linear-gradient(135deg, #6c5ce7, #a29bfe);
}

/* Dark Theme (default) */
html[data-theme="dark"], :root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-tertiary: #1a1a2e;
  --bg-card: #16162a;
  --bg-elevated: #1f1f35;
  --bg-input: #14142a;
  --bg-navbar: rgba(10,10,15,.72);
  --border-color: rgba(255,255,255,.07);
  --border-hover: rgba(255,255,255,.14);
  --text-primary: #f0f0f5;
  --text-secondary: #a0a0b8;
  --text-tertiary: #6a6a82;
  --success: #00d68f;
  --warning: #f0c040;
  --error: #ff6b6b;
  --info: #4fc3f7;
  --code-bg: #0d0d14;
  --line-num-bg: #0f0f18;
  --line-num-color: #4a4a65;
  --scrollbar-thumb: rgba(255,255,255,.12);
  --scrollbar-track: transparent;
}

/* Light Theme */
html[data-theme="light"] {
  --bg-primary: #f8f9fc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f0f1f5;
  --bg-card: #ffffff;
  --bg-elevated: #ffffff;
  --bg-input: #f5f5f8;
  --bg-navbar: rgba(255,255,255,.82);
  --border-color: rgba(0,0,0,.08);
  --border-hover: rgba(0,0,0,.15);
  --text-primary: #1a1a2e;
  --text-secondary: #5a5a72;
  --text-tertiary: #8a8a9e;
  --success: #059669;
  --warning: #d97706;
  --error: #dc2626;
  --info: #2563eb;
  --code-bg: #fafafe;
  --line-num-bg: #f5f5f8;
  --line-num-color: #b0b0c0;
  --scrollbar-thumb: rgba(0,0,0,.15);
  --scrollbar-track: transparent;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
img { max-width: 100%; display: block; }
input, textarea { font-family: inherit; }

/* Scrollbar */
::-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: rgba(108,92,231,.4); }

/* ---------- Utilities ---------- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.text-gradient {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 20px; border-radius: var(--radius-md);
  font-weight: 600; font-size: .9rem;
  transition: all var(--transition-base);
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient-accent); color: #fff;
  box-shadow: 0 4px 15px rgba(108,92,231,.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(108,92,231,.4); }
.btn-outline {
  border: 1px solid var(--border-color); color: var(--text-primary);
  background: transparent;
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent-light); }
.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn-sm { padding: 6px 14px; font-size: .8rem; }
.btn-arrow { transition: transform var(--transition-fast); }
.btn-primary:hover .btn-arrow { transform: translateX(4px); }

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: var(--bg-navbar); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
}
.nav-container {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; }
.logo-icon {
  font-size: 1.5rem; font-weight: 900;
  background: var(--gradient-accent); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text;
}
.logo-icon-sm { font-size: 1.2rem; font-weight: 900; color: var(--accent-light); }
.logo-text { font-weight: 800; font-size: 1.1rem; }
.logo-accent { color: var(--accent-light); }
.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-links a { font-size: .9rem; color: var(--text-secondary); transition: color var(--transition-fast); }
.nav-links a:hover { color: var(--text-primary); }
.nav-cta { margin-left: 8px; }
.mobile-menu-btn { display: none; font-size: 1.5rem; color: var(--text-primary); }
.mobile-menu {
  display: none; flex-direction: column; padding: 16px 24px; gap: 12px;
  background: var(--bg-secondary); border-bottom: 1px solid var(--border-color);
}
.mobile-menu.open { display: flex; }
.mobile-menu a { padding: 8px 0; color: var(--text-secondary); }

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 100px 0 60px; overflow: hidden;
}
.hero-bg-effects { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.hero-gradient {
  position: absolute; top: -40%; left: 50%; transform: translateX(-50%);
  width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(108,92,231,.15), transparent 70%);
  border-radius: 50%;
}
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(108,92,231,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108,92,231,.03) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridFloat 20s ease-in-out infinite;
}
@keyframes gridFloat {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-10px, -10px); }
}
.hero-content { text-align: center; position: relative; z-index: 1; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 20px; border-radius: 100px;
  background: rgba(108,92,231,.1); border: 1px solid rgba(108,92,231,.2);
  font-size: .85rem; font-weight: 600; color: var(--accent-light);
  margin-bottom: 24px;
}
.badge-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent); animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .4; } }
.hero-title {
  font-size: 3.5rem; font-weight: 900; line-height: 1.1;
  max-width: 800px; margin: 0 auto 20px;
}
.hero-subtitle {
  font-size: 1.15rem; color: var(--text-secondary);
  max-width: 650px; margin: 0 auto 32px; line-height: 1.7;
}
.hero-actions { display: flex; justify-content: center; gap: 16px; margin-bottom: 48px; flex-wrap: wrap; }
.hero-stats {
  display: flex; justify-content: center; gap: 48px;
  margin-bottom: 48px; flex-wrap: wrap;
}
.stat { text-align: center; }
.stat-number { display: block; font-size: 1.5rem; font-weight: 800; color: var(--accent-light); }
.stat-label { font-size: .8rem; color: var(--text-tertiary); }

/* Code Preview */
.hero-code-preview { max-width: 600px; margin: 0 auto; }
.code-window {
  background: var(--bg-secondary); border: 1px solid var(--border-color);
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-xl);
}
.code-header {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px; background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
}
.code-dots { display: flex; gap: 6px; }
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }
.code-title { font-size: .8rem; color: var(--text-tertiary); }
.code-body {
  padding: 20px; font-family: var(--font-mono); font-size: .85rem;
  line-height: 1.8; overflow-x: auto; margin: 0;
  color: var(--text-primary);
}

/* ============================================
   SECTIONS
   ============================================ */
.section { padding: 100px 0; }
.section-alt { background: var(--bg-secondary); }
.section-header { text-align: center; margin-bottom: 56px; }
.section-badge {
  display: inline-block; padding: 6px 16px; border-radius: 100px;
  background: rgba(108,92,231,.1); border: 1px solid rgba(108,92,231,.2);
  font-size: .8rem; font-weight: 700; color: var(--accent-light);
  text-transform: uppercase; letter-spacing: .08em; margin-bottom: 16px;
}
.section-title { font-size: 2.2rem; font-weight: 800; margin-bottom: 12px; }
.section-subtitle { font-size: 1.05rem; color: var(--text-secondary); max-width: 600px; margin: 0 auto; line-height: 1.7; }

/* ---------- Features Grid ---------- */
.features-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.feature-card {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: var(--radius-lg); padding: 32px 24px;
  transition: all var(--transition-base);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--border-hover); }
.feature-icon { font-size: 2rem; margin-bottom: 16px; }
.feature-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.feature-card p { font-size: .9rem; color: var(--text-secondary); line-height: 1.6; }

/* ---------- Tools Grid ---------- */
.tools-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.tool-card {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: var(--radius-md); padding: 20px;
  transition: all var(--transition-base);
}
.tool-card:hover { border-color: var(--border-hover); transform: translateY(-2px); }
.tool-card h4 { font-size: .9rem; font-weight: 700; margin-bottom: 8px; }
.tool-card code {
  font-family: var(--font-mono); font-size: .75rem;
  color: var(--accent-light); word-break: break-all;
}

/* ---------- Examples Preview ---------- */
.examples-preview {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.example-card {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: var(--radius-lg); padding: 24px; cursor: pointer;
  transition: all var(--transition-base); position: relative;
}
.example-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--border-hover); }
.example-difficulty {
  display: inline-block; padding: 3px 10px; border-radius: 100px;
  font-size: .7rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .05em; margin-bottom: 12px;
}
.example-difficulty.easy { background: rgba(0,214,143,.12); color: var(--success); }
.example-difficulty.medium { background: rgba(240,192,64,.12); color: var(--warning); }
.example-difficulty.hard { background: rgba(255,107,107,.12); color: var(--error); }
.example-card h4 { font-size: 1rem; font-weight: 700; margin-bottom: 6px; }
.example-card p { font-size: .85rem; color: var(--text-secondary); }

/* ---------- About Grid ---------- */
.about-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.about-card {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: var(--radius-lg); padding: 36px 28px; text-align: center;
  transition: all var(--transition-base);
}
.about-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.about-icon { font-size: 2.5rem; margin-bottom: 16px; }
.about-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.about-card p { font-size: .9rem; color: var(--text-secondary); line-height: 1.6; }

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--bg-secondary); border-top: 1px solid var(--border-color);
  padding: 64px 0 0;
}
.footer-content {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px; margin-bottom: 48px;
}
.footer-brand { max-width: 300px; }
.footer-brand .logo-icon { margin-bottom: 4px; }
.footer-desc { font-size: .88rem; color: var(--text-secondary); margin-top: 12px; line-height: 1.6; }
.footer-links h4 {
  font-size: .85rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .08em; margin-bottom: 16px;
}
.footer-links a {
  display: block; padding: 5px 0; font-size: .88rem;
  color: var(--text-secondary); transition: color var(--transition-fast);
}
.footer-links a:hover { color: var(--accent-light); }
.footer-bottom {
  border-top: 1px solid var(--border-color); padding: 20px 0;
  text-align: center;
}
.footer-bottom p { font-size: .82rem; color: var(--text-tertiary); }

/* ============================================
   EDITOR PAGE
   ============================================ */
#editor-page { display: flex; flex-direction: column; height: 100vh; overflow: hidden; }

/* Editor Toolbar */
.editor-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  height: 48px; padding: 0 12px;
  background: var(--bg-secondary); border-bottom: 1px solid var(--border-color);
  flex-shrink: 0; z-index: 50;
}
.toolbar-left, .toolbar-center, .toolbar-right {
  display: flex; align-items: center; gap: 4px;
}
.toolbar-center { flex: 1; justify-content: center; }
.toolbar-separator { width: 1px; height: 24px; background: var(--border-color); margin: 0 6px; }
.toolbar-btn {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 6px 10px; border-radius: var(--radius-sm);
  font-size: .8rem; font-weight: 500; color: var(--text-secondary);
  transition: all var(--transition-fast); white-space: nowrap;
}
.toolbar-btn:hover:not(:disabled) { background: rgba(108,92,231,.1); color: var(--text-primary); }
.toolbar-btn:disabled { opacity: .35; cursor: not-allowed; }
.toolbar-btn .tb-icon { font-size: .9rem; }
.logo-btn { font-weight: 700; }
.editor-title {
  font-size: .85rem; font-weight: 600; color: var(--text-secondary);
  max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

/* Exam Bar */
.exam-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 16px; background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color); flex-shrink: 0;
}
.exam-info { display: flex; align-items: center; gap: 12px; font-size: .85rem; font-weight: 600; }
.exam-timer {
  font-family: var(--font-mono); font-size: 1.1rem; font-weight: 700;
  color: var(--warning); min-width: 80px;
}
.exam-controls { display: flex; align-items: center; gap: 8px; }
.exam-input {
  width: 60px; padding: 4px 8px; border: 1px solid var(--border-color);
  border-radius: var(--radius-sm); background: var(--bg-input);
  color: var(--text-primary); font-size: .85rem; text-align: center;
}

/* Editor Layout */
.editor-layout { display: flex; flex: 1; overflow: hidden; }
.editor-panel {
  flex: 1; display: flex; flex-direction: column;
  min-width: 300px; border-right: 1px solid var(--border-color); overflow: hidden;
}
.panel-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 12px; background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color); flex-shrink: 0;
  font-size: .82rem; font-weight: 600; color: var(--text-secondary);
}
.panel-actions { display: flex; gap: 4px; }
.panel-btn {
  padding: 4px 8px; border-radius: var(--radius-sm); font-size: .85rem;
  color: var(--text-tertiary); transition: all var(--transition-fast);
}
.panel-btn:hover { background: rgba(108,92,231,.1); color: var(--text-primary); }

/* Code Editor */
.code-editor-container {
  flex: 1; position: relative; overflow: hidden; background: var(--code-bg);
}
.editor-wrapper {
  position: absolute; inset: 0; display: flex;
}
.line-numbers {
  flex-shrink: 0; padding: 16px 0; text-align: right;
  user-select: none; background: var(--line-num-bg);
  border-right: 1px solid var(--border-color);
  min-width: 52px; overflow-y: hidden;
}
.line-num {
  padding: 0 12px 0 8px; font-family: var(--font-mono);
  font-size: .85rem; line-height: 1.6; color: var(--line-num-color);
}
.line-num.active-line { color: var(--accent-light); background: rgba(108,92,231,.1); }
.code-textarea {
  position: absolute; top: 0; left: 52px; right: 0; bottom: 0;
  padding: 16px; font-family: var(--font-mono); font-size: .85rem;
  line-height: 1.6; color: transparent; caret-color: var(--accent-light);
  background: transparent; border: none; outline: none;
  resize: none; overflow: auto; tab-size: 2; white-space: pre; z-index: 2;
}
.code-textarea::placeholder { color: var(--text-tertiary); }
.code-highlight {
  position: absolute; top: 0; left: 52px; right: 0; bottom: 0;
  padding: 16px; font-family: var(--font-mono); font-size: .85rem;
  line-height: 1.6; color: var(--text-primary); margin: 0;
  white-space: pre; overflow: hidden; pointer-events: none; z-index: 1;
}

/* Status Bar */
.editor-statusbar {
  display: flex; align-items: center; gap: 20px;
  height: 26px; padding: 0 12px;
  background: var(--bg-tertiary); border-top: 1px solid var(--border-color);
  flex-shrink: 0; font-size: .72rem; color: var(--text-tertiary);
}
.syntax-ok { color: var(--success); }
.syntax-error { color: var(--error); }
.syntax-warning { color: var(--warning); }

/* Output Panel */
.output-panel {
  flex: 1; display: flex; flex-direction: column;
  min-width: 280px; overflow: hidden;
}
.panel-tabs {
  display: flex; background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color); flex-shrink: 0;
}
.panel-tab {
  padding: 8px 16px; font-size: .8rem; font-weight: 600;
  color: var(--text-tertiary); transition: all var(--transition-fast);
  border-bottom: 2px solid transparent;
}
.panel-tab:hover { color: var(--text-secondary); }
.panel-tab.active { color: var(--accent-light); border-bottom-color: var(--accent); }

.panel-content { flex: 1; overflow: auto; }

/* Output Area */
.output-area {
  min-height: 100%; padding: 16px; font-family: var(--font-mono);
  font-size: .84rem; line-height: 1.7;
  background: #0a0a12; color: #d0d0e0;
}
html[data-theme="light"] .output-area { background: #1e1e2e; }
.output-line { margin-bottom: 2px; }
.output-normal { color: #d0d0e0; }
.output-error { color: var(--error); }
.output-warning { color: var(--warning); }
.output-info { color: var(--info); }
.output-input { color: var(--accent-light); }

/* Input Prompt */
.input-prompt {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 12px; background: rgba(0,0,0,.3);
  border-top: 1px solid var(--border-color); flex-shrink: 0;
}
.input-field {
  flex: 1; padding: 8px 12px; font-family: var(--font-mono);
  font-size: .85rem; color: var(--text-primary);
  background: var(--bg-input); border: 1px solid var(--border-color);
  border-radius: var(--radius-sm); outline: none;
}
.input-field:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }

/* Variables Table */
.variables-area { padding: 12px; overflow: auto; }
.variables-table {
  width: 100%; border-collapse: collapse; font-size: .82rem;
}
.variables-table th {
  text-align: left; padding: 8px 12px; font-weight: 700;
  font-size: .75rem; text-transform: uppercase; letter-spacing: .06em;
  color: var(--text-tertiary); background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
}
.variables-table td {
  padding: 7px 12px; border-bottom: 1px solid var(--border-color);
  font-family: var(--font-mono); font-size: .8rem;
}
.var-name { color: var(--accent-light); font-weight: 600; }
.var-value { color: var(--success); }
.var-type { color: var(--info); }
.empty-state { padding: 32px; text-align: center; color: var(--text-tertiary); font-size: .85rem; }

/* Call Stack */
.callstack-area { padding: 8px; }
.callstack-item {
  padding: 6px 12px; font-family: var(--font-mono); font-size: .82rem;
  color: var(--text-secondary);
}

/* ============================================
   SIDE PANELS
   ============================================ */
.side-panel {
  position: fixed; top: 0; right: 0; bottom: 0;
  width: 420px; max-width: 90vw;
  background: var(--bg-secondary); border-left: 1px solid var(--border-color);
  z-index: 200; transform: translateX(100%);
  transition: transform var(--transition-slow);
  display: flex; flex-direction: column;
  box-shadow: var(--shadow-xl);
}
.side-panel.open { transform: translateX(0); }
.side-panel-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border-color); flex-shrink: 0;
}
.side-panel-header h3 { font-size: 1.05rem; font-weight: 700; }
.close-btn {
  width: 32px; height: 32px; display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm); color: var(--text-secondary);
  transition: all var(--transition-fast); font-size: 1.1rem;
}
.close-btn:hover { background: rgba(255,255,255,.06); color: var(--text-primary); }
.side-panel-body { flex: 1; overflow-y: auto; padding: 20px; }

/* Example items in side panel */
.example-category { margin-bottom: 24px; }
.example-category h4 {
  font-size: .85rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .08em; color: var(--text-tertiary); margin-bottom: 12px;
}
.example-item {
  padding: 12px 16px; border-radius: var(--radius-md);
  cursor: pointer; transition: background var(--transition-fast);
  margin-bottom: 4px;
}
.example-item:hover { background: rgba(108,92,231,.08); }
.example-item-header { display: flex; align-items: center; gap: 10px; margin-bottom: 4px; }
.example-item p { font-size: .8rem; color: var(--text-tertiary); margin: 0; }

/* Syntax Reference */
.syntax-section { margin-bottom: 28px; }
.syntax-section h4 {
  font-size: .9rem; font-weight: 700; margin-bottom: 10px;
  color: var(--accent-light);
}
.syntax-code {
  font-family: var(--font-mono); font-size: .8rem; line-height: 1.7;
  padding: 14px; background: var(--code-bg); border-radius: var(--radius-md);
  border: 1px solid var(--border-color); overflow-x: auto;
  color: var(--text-primary); margin: 0; white-space: pre;
}
.syntax-footer { padding: 20px 0; text-align: center; color: var(--text-tertiary); font-size: .82rem; }

/* Tutorial */
.tutorial-lesson {
  margin-bottom: 28px; padding-bottom: 28px;
  border-bottom: 1px solid var(--border-color);
}
.tutorial-lesson:last-child { border-bottom: none; }
.tutorial-lesson h4 { font-size: 1rem; font-weight: 700; margin-bottom: 12px; }
.tutorial-lesson p { font-size: .88rem; color: var(--text-secondary); margin-bottom: 12px; line-height: 1.6; }
.tutorial-lesson code {
  font-family: var(--font-mono); font-size: .82rem;
  padding: 2px 6px; background: rgba(108,92,231,.1);
  border-radius: 4px; color: var(--accent-light);
}

/* ============================================
   SYNTAX HIGHLIGHTING
   ============================================ */
.kw { color: #c792ea; font-weight: 600; }
.st { color: #c3e88d; }
.nm { color: #f78c6c; }
.tp { color: #82aaff; }
.cm { color: #546e7a; font-style: italic; }
.fn { color: #82aaff; }

html[data-theme="light"] .kw { color: #7c3aed; }
html[data-theme="light"] .st { color: #16a34a; }
html[data-theme="light"] .nm { color: #ea580c; }
html[data-theme="light"] .tp { color: #2563eb; }
html[data-theme="light"] .cm { color: #94a3b8; }
html[data-theme="light"] .fn { color: #2563eb; }

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .hero-title { font-size: 2.5rem; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .tools-grid { grid-template-columns: repeat(2, 1fr); }
  .examples-preview { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-content { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .editor-layout { flex-direction: column; }
  .editor-panel { border-right: none; border-bottom: 1px solid var(--border-color); max-height: 50vh; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .mobile-menu-btn { display: block; }
  .hero { padding: 100px 0 50px; min-height: auto; }
  .hero-title { font-size: 2rem; }
  .hero-subtitle { font-size: 1rem; }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-stats { gap: 24px; }
  .section { padding: 64px 0; }
  .section-title { font-size: 1.7rem; }
  .features-grid, .tools-grid, .examples-preview, .about-grid { grid-template-columns: 1fr; }
  .footer-content { grid-template-columns: 1fr; gap: 32px; }
  .toolbar-left .toolbar-btn span:not(.tb-icon) { display: none; }
  .toolbar-right .toolbar-btn span:not(.tb-icon):not(.theme-icon) { display: none; }
  .side-panel { width: 100%; max-width: 100vw; }
  .editor-toolbar { flex-wrap: wrap; height: auto; padding: 8px; }
}