/* ==========================================================================
   QUICKKIT - CLEAN, HUMAN-CRAFTED MINIMAL DESIGN SYSTEM
   ========================================================================== */

:root {
  /* Warm Slate & Obsidian Palette */
  --bg-primary: #0b0f19;
  --bg-secondary: #131b2e;
  --bg-card: #131b2e;
  --bg-card-hover: #1c2742;
  --bg-input: #0b0f19;
  --border-color: #1e2d4a;
  --border-focus: #38bdf8;
  
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --accent-primary: #38bdf8;
  --accent-hover: #0ea5e9;
  --accent-glow: rgba(56, 189, 248, 0.12);
  
  --success: #34d399;
  --success-bg: rgba(52, 211, 153, 0.12);
  --warning: #fbbf24;
  --danger: #f87171;

  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 22px;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.25);
  --shadow-md: 0 6px 12px -2px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 24px -4px rgba(0, 0, 0, 0.45);
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

/* Light Theme Variables */
html.light {
  --bg-primary: #fafbfc;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f4f6f8;
  --bg-input: #f8fafc;
  --border-color: #e2e8f0;
  --border-focus: #0284c7;
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  
  --accent-primary: #0284c7;
  --accent-hover: #0369a1;
  --accent-glow: rgba(2, 132, 199, 0.1);
  
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 6px 12px -2px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 16px 24px -4px rgba(0, 0, 0, 0.08);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Top Note */
.top-banner {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 0.45rem 1rem;
  font-size: 0.8rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-secondary);
}

.banner-content {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 auto;
}

.privacy-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--success);
  box-shadow: 0 0 6px var(--success);
}

.banner-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.15rem;
  cursor: pointer;
  line-height: 1;
}

/* Header */
.site-header {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
}

.header-container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0.8rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-mark {
  background: var(--text-primary);
  color: var(--bg-primary);
  font-weight: 800;
  font-size: 0.85rem;
  padding: 0.25rem 0.45rem;
  border-radius: var(--radius-sm);
  letter-spacing: -0.05em;
}

.logo-title {
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.03em;
}

/* Search Bar */
.search-wrapper {
  flex: 1;
  max-width: 440px;
  position: relative;
}

.search-icon {
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.85rem;
  color: var(--text-muted);
  pointer-events: none;
}

#toolSearchInput {
  width: 100%;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.55rem 2.2rem 0.55rem 2.3rem;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.85rem;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

#toolSearchInput:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.search-kbd {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  background-color: var(--border-color);
  color: var(--text-secondary);
  font-size: 0.7rem;
  padding: 0.15rem 0.35rem;
  border-radius: 4px;
  font-family: var(--font-mono);
}

.search-results-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: none;
  max-height: 320px;
  overflow-y: auto;
  z-index: 100;
}

.search-result-item {
  padding: 0.65rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  border-bottom: 1px solid var(--border-color);
}

.search-result-item:hover { background-color: var(--bg-card-hover); }
.search-result-icon { font-size: 1.1rem; }
.search-result-name { font-weight: 600; font-size: 0.85rem; }
.search-result-desc { font-size: 0.75rem; color: var(--text-muted); }

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn-icon {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  cursor: pointer;
}

.btn-icon:hover { background-color: var(--border-color); }

.btn-share {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.825rem;
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: all var(--transition-fast);
}

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

.btn-suggest {
  background: rgba(251, 191, 36, 0.12);
  border: 1px solid rgba(251, 191, 36, 0.4);
  color: #fbbf24;
  font-weight: 700;
  font-size: 0.825rem;
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: all var(--transition-fast);
}

.btn-suggest:hover {
  background: rgba(251, 191, 36, 0.2);
  transform: translateY(-1px);
}

/* Modal Popup */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 520px;
  padding: 1.75rem;
  box-shadow: var(--shadow-lg);
  animation: modalFadeIn 0.2s ease-out;
}

@keyframes modalFadeIn {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}

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

.modal-header h3 { font-size: 1.2rem; font-weight: 800; }
.modal-close { background: none; border: none; font-size: 1.5rem; color: var(--text-muted); cursor: pointer; line-height: 1; }
.modal-close:hover { color: var(--text-primary); }
.modal-desc { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 1.25rem; line-height: 1.5; }

/* Layout Grid */
.app-layout {
  display: flex;
  flex: 1;
  max-width: 1300px;
  width: 100%;
  margin: 0 auto;
  padding: 1.5rem;
  gap: 2rem;
}

/* Sidebar */
.sidebar {
  width: 220px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.sidebar-label {
  font-size: 0.68rem;
  font-weight: 800;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  padding-left: 0.5rem;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.nav-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-md);
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
}

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

.nav-item.active {
  background-color: var(--bg-card);
  color: var(--accent-primary);
  font-weight: 600;
  border: 1px solid var(--border-color);
}

.nav-count {
  font-size: 0.72rem;
  background-color: var(--bg-input);
  padding: 0.1rem 0.4rem;
  border-radius: 9999px;
  color: var(--text-muted);
}

.sidebar-creator-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  gap: 0.75rem;
}

.creator-avatar { font-size: 1.25rem; }
.creator-text strong { font-size: 0.8rem; display: block; margin-bottom: 0.2rem; }
.creator-text p { font-size: 0.75rem; color: var(--text-muted); line-height: 1.4; }

/* Main Workspace */
.main-workspace {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Hub Hero */
.hub-hero {
  border: 1px solid var(--border-color);
  background: linear-gradient(180deg, var(--bg-secondary) 0%, rgba(19, 27, 46, 0.4) 100%);
  border-radius: var(--radius-xl);
  padding: 2.5rem 2rem;
  text-align: center;
}

.hero-title {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.25;
  margin-bottom: 0.85rem;
}

.hero-subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  max-width: 620px;
  margin: 0 auto 1.5rem;
  line-height: 1.6;
}

.hero-pills {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.pill {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
}

/* Tools Grid */
.section-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
}

.section-heading {
  font-size: 1.15rem;
  font-weight: 700;
}

.results-count {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1rem;
}

.tool-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  cursor: pointer;
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.tool-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-md);
}

.tool-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.tool-card-icon {
  font-size: 1.5rem;
  background-color: var(--bg-input);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.tool-badge {
  font-size: 0.68rem;
  font-weight: 700;
  background-color: var(--bg-input);
  color: var(--text-muted);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  border: 1px solid var(--border-color);
}

.tool-card-title {
  font-size: 0.95rem;
  font-weight: 700;
}

.tool-card-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.45;
  flex: 1;
}

.tool-card-footer {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-primary);
}

/* Tool Active Workspace */
.tool-workspace {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  box-shadow: var(--shadow-md);
}

.workspace-header {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.25rem;
}

.btn-back {
  background: transparent;
  border: none;
  color: var(--accent-primary);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  align-self: flex-start;
}

.tool-title-row {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.tool-icon-lg { font-size: 2rem; }
.tool-active-title { font-size: 1.4rem; font-weight: 800; }
.tool-active-desc { font-size: 0.85rem; color: var(--text-secondary); }

/* Dropzones */
.dropzone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  background-color: var(--bg-input);
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--accent-primary);
  background-color: var(--accent-glow);
}

.dropzone-compact { padding: 1.5rem; }
.dropzone-icon { font-size: 2.25rem; margin-bottom: 0.5rem; }
.browse-link { color: var(--accent-primary); text-decoration: underline; }
.dropzone-sub { font-size: 0.78rem; color: var(--text-muted); margin-top: 0.35rem; }

/* Control Cards & Inputs */
.compress-controls-card, .qr-settings-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem;
  margin-top: 1rem;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 140px;
}

.control-group label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.highlight-val { color: var(--accent-primary); font-weight: 700; }

.form-select, .form-input {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.85rem;
  outline: none;
}

.form-range { accent-color: var(--accent-primary); cursor: pointer; }
.form-color { width: 44px; height: 36px; border: none; border-radius: var(--radius-sm); cursor: pointer; }

/* Buttons */
.btn-primary {
  background-color: var(--accent-primary);
  color: #0b0f19;
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0.55rem 1.15rem;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--accent-hover);
  transform: translateY(-1px);
}

.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-secondary {
  background-color: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.55rem 0.95rem;
  border-radius: var(--radius-md);
  cursor: pointer;
}

.btn-secondary:hover:not(:disabled) { background-color: var(--border-color); }
.btn-sm { padding: 0.35rem 0.75rem; font-size: 0.78rem; }

/* File Result Items */
.file-results-container {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.file-result-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.file-info {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.file-thumb {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  object-fit: cover;
}

.file-name { font-weight: 600; font-size: 0.85rem; }
.file-sizes { font-size: 0.75rem; color: var(--text-muted); }
.file-savings { color: var(--success); font-weight: 700; }

/* Code Tool Split */
.code-tool-container {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.code-toolbar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.status-indicator {
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.code-editor-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.code-pane {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.pane-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
}

.code-textarea, .code-output, .markdown-preview-box {
  width: 100%;
  height: 320px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  outline: none;
  resize: vertical;
  overflow-y: auto;
}

/* QR Code Display */
.qr-container {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 1.5rem;
}

.qr-preview-box {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

/* Social Resizer */
.resizer-container {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 1.5rem;
}

.resizer-sidebar {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.preset-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.preset-label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
}

.preset-btn {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.45rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  text-align: left;
  cursor: pointer;
}

.preset-btn:hover, .preset-btn.active {
  border-color: var(--accent-primary);
  background-color: var(--accent-glow);
  color: var(--accent-primary);
}

.canvas-preview-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

#resizerCanvas {
  max-width: 100%;
  max-height: 380px;
  border-radius: var(--radius-sm);
}

/* Password & Hash */
.pass-display-card {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.pass-result-input {
  flex: 1;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent-primary);
  outline: none;
}

.pass-options-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  background-color: var(--bg-secondary);
  padding: 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
}

.hash-section {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.hash-result-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--bg-input);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.hash-tag { font-weight: 700; font-size: 0.75rem; color: var(--accent-primary); }
.hash-code { font-family: var(--font-mono); font-size: 0.8rem; word-break: break-all; }

/* Text Counters */
.stats-counter-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 1rem;
}

.stat-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  text-align: center;
}

.stat-num { display: block; font-size: 1.5rem; font-weight: 800; color: var(--accent-primary); }
.stat-lbl { font-size: 0.75rem; color: var(--text-muted); }

.case-actions-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

/* FAQ */
.seo-content-section {
  border-top: 1px solid var(--border-color);
  padding-top: 2.5rem;
}

.faq-container {
  max-width: 750px;
  margin: 0 auto;
}

.faq-title { font-size: 1.35rem; font-weight: 800; margin-bottom: 1.25rem; text-align: center; }

.faq-item {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 0.75rem;
  overflow: hidden;
}

.faq-question {
  padding: 0.9rem 1.2rem;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
}

.faq-answer {
  padding: 0 1.2rem 1.2rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Footer */
.site-footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  margin-top: auto;
  padding: 2.5rem 1.5rem 1.5rem;
}

.footer-container {
  max-width: 1300px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 2rem;
}

.footer-brand { font-weight: 800; font-size: 1.15rem; margin-bottom: 0.4rem; }
.footer-desc { font-size: 0.825rem; color: var(--text-secondary); margin-bottom: 0.75rem; }
.copyright { font-size: 0.75rem; color: var(--text-muted); }
.footer-col h4 { font-size: 0.8rem; font-weight: 700; margin-bottom: 0.75rem; text-transform: uppercase; color: var(--text-muted); }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 0.45rem; }
.footer-col a { color: var(--text-secondary); text-decoration: none; font-size: 0.825rem; }
.footer-col a:hover { color: var(--accent-primary); }
.ad-disclaimer { font-size: 0.78rem; color: var(--text-muted); }

/* Responsive */
@media (max-width: 992px) {
  .app-layout { flex-direction: column; }
  .sidebar { width: 100%; }
  .sidebar-nav { flex-direction: row; flex-wrap: wrap; }
  .code-editor-split { grid-template-columns: 1fr; }
  .qr-container, .resizer-container { grid-template-columns: 1fr; }
  .stats-counter-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-container { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .hero-title { font-size: 1.6rem; }
  .stats-counter-grid { grid-template-columns: 1fr; }
  .footer-container { grid-template-columns: 1fr; }
}