/* ===== CSS Variables & Theme ===== */
:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --secondary: #8b5cf6;
  --accent: #ec4899;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --bg: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-card: #ffffff;
  --text: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --border: #e2e8f0;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.08), 0 4px 10px rgba(0,0,0,0.05);
  --shadow-xl: 0 20px 40px rgba(0,0,0,0.1);
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  --bg: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: #1e293b;
  --text: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border: #334155;
  --shadow: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.3);
  --shadow-xl: 0 20px 40px rgba(0,0,0,0.4);
}

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

html { scroll-behavior: smooth; }

/* ===== Global Focus Styles (Accessibility) ===== */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}

button:focus-visible,
a:focus-visible,
select:focus-visible,
input[type="file"]:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(99,102,241,0.15);
}

/* Remove default outline for mouse clicks */
:focus:not(:focus-visible) {
  outline: none;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  transition: background var(--transition), color var(--transition);
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; font-family: inherit; }
input, select, textarea { font-family: inherit; }

/* ===== Header ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

[data-theme="dark"] .header {
  background: rgba(15,23,42,0.85);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.35rem;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.1rem;
}

.logo span {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition);
  font-size: 1.2rem;
}

.theme-toggle:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.nav-home {
  padding: 8px 16px;
  border-radius: 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-home:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* ===== Hero Section ===== */
.hero {
  position: relative;
  padding: 80px 24px;
  text-align: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(99,102,241,0.08), rgba(139,92,246,0.08), rgba(236,72,153,0.05));
  z-index: 0;
}

[data-theme="dark"] .hero::before {
  background: linear-gradient(135deg, rgba(99,102,241,0.15), rgba(139,92,246,0.1), rgba(236,72,153,0.05));
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(99,102,241,0.1);
  border: 1px solid rgba(99,102,241,0.2);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
  letter-spacing: -0.03em;
}

.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto;
}

/* ===== Tool Cards Grid ===== */
.tools-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

.tools-section h2 {
  text-align: center;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 32px;
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 20px;
}

.tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.tool-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--card-accent, var(--primary));
  opacity: 0;
  transition: opacity var(--transition);
}

.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

.tool-card:hover::before { opacity: 1; }

.tool-card-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  background: var(--icon-bg, rgba(99,102,241,0.1));
  color: var(--icon-color, var(--primary));
  transition: transform var(--transition);
}

.tool-card:hover .tool-card-icon { transform: scale(1.1); }

.tool-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.tool-card p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Card accent colors */
.tool-card[data-color="blue"] { --card-accent: #3b82f6; --icon-bg: rgba(59,130,246,0.1); --icon-color: #3b82f6; }
.tool-card[data-color="purple"] { --card-accent: #8b5cf6; --icon-bg: rgba(139,92,246,0.1); --icon-color: #8b5cf6; }
.tool-card[data-color="green"] { --card-accent: #10b981; --icon-bg: rgba(16,185,129,0.1); --icon-color: #10b981; }
.tool-card[data-color="orange"] { --card-accent: #f59e0b; --icon-bg: rgba(245,158,11,0.1); --icon-color: #f59e0b; }
.tool-card[data-color="pink"] { --card-accent: #ec4899; --icon-bg: rgba(236,72,153,0.1); --icon-color: #ec4899; }
.tool-card[data-color="red"] { --card-accent: #ef4444; --icon-bg: rgba(239,68,68,0.1); --icon-color: #ef4444; }
.tool-card[data-color="teal"] { --card-accent: #14b8a6; --icon-bg: rgba(20,184,166,0.1); --icon-color: #14b8a6; }
.tool-card[data-color="indigo"] { --card-accent: #6366f1; --icon-bg: rgba(99,102,241,0.1); --icon-color: #6366f1; }

/* ===== Features Bar ===== */
.features-bar {
  max-width: 1200px;
  margin: 0 auto 60px;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(99,102,241,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.feature-item h4 {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.feature-item p {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

/* ===== Tool Page Layout ===== */
.tool-page {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

.tool-page-header {
  text-align: center;
  margin-bottom: 36px;
}

.tool-page-header h1 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.tool-page-header p {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* ===== Upload Zone ===== */
.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 24px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  background: var(--bg-secondary);
  position: relative;
}

.upload-zone:hover,
.upload-zone.drag-over {
  border-color: var(--primary);
  background: rgba(99,102,241,0.04);
}

[data-theme="dark"] .upload-zone:hover,
[data-theme="dark"] .upload-zone.drag-over {
  background: rgba(99,102,241,0.08);
}

.upload-zone-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
  opacity: 0.5;
}

.upload-zone h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.upload-zone p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.upload-zone .browse-btn {
  display: inline-block;
  margin-top: 16px;
  padding: 10px 28px;
  background: var(--primary);
  color: white;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: background var(--transition);
}

.upload-zone .browse-btn:hover {
  background: var(--primary-dark);
}

.upload-zone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

/* ===== File List ===== */
.file-list {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.file-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.file-item:hover { box-shadow: var(--shadow); }

.file-item-icon {
  width: 40px;
  height: 40px;
  background: rgba(239,68,68,0.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ef4444;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.file-item-info { flex: 1; min-width: 0; }
.file-item-name {
  font-weight: 600;
  font-size: 0.9rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-item-size {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.file-item-remove {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  font-size: 1.1rem;
}

.file-item-remove:hover {
  background: rgba(239,68,68,0.1);
  color: #ef4444;
}

.file-item.dragging {
  opacity: 0.5;
  border-style: dashed;
}

.file-item .drag-handle {
  cursor: grab;
  color: var(--text-muted);
  font-size: 1.2rem;
  padding: 4px;
}

.file-item .drag-handle:active { cursor: grabbing; }

/* ===== Action Button ===== */
.action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 16px;
  margin-top: 24px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  border-radius: var(--radius);
  font-size: 1.05rem;
  font-weight: 700;
  transition: all var(--transition);
  border: none;
}

.action-btn:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 8px 25px rgba(99,102,241,0.35);
}

.action-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.action-btn.success {
  background: linear-gradient(135deg, var(--success), #059669);
}

/* ===== Options Panel ===== */
.options-panel {
  margin-top: 24px;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.options-panel h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.option-group {
  margin-bottom: 16px;
}

.option-group:last-child { margin-bottom: 0; }

.option-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-secondary);
}

.option-input,
.option-select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-size: 0.9rem;
  transition: border-color var(--transition);
}

.option-input:focus,
.option-select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.1);
}

.option-row {
  display: flex;
  gap: 16px;
}

.option-row .option-group { flex: 1; }

/* ===== Preview Grid ===== */
.preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.preview-page {
  position: relative;
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 8px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
}

.preview-page:hover { border-color: var(--primary-light); }

.preview-page.selected {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}

.preview-page canvas {
  width: 100%;
  height: auto;
  border-radius: 6px;
  background: white;
}

.preview-page .page-num {
  margin-top: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.preview-page .page-check {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
}

.preview-page.selected .page-check { display: flex; }

/* Rotation indicator */
.preview-page .rotation-badge {
  position: absolute;
  top: 4px;
  left: 4px;
  padding: 2px 8px;
  background: var(--primary);
  color: white;
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 700;
}

.preview-page .rotate-controls {
  display: flex;
  justify-content: center;
  gap: 4px;
  margin-top: 6px;
}

.rotate-btn {
  width: 30px;
  height: 30px;
  border-radius: 6px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  transition: all var(--transition);
}

.rotate-btn:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* ===== Progress Bar ===== */
.progress-container {
  margin-top: 20px;
  display: none;
}

.progress-container.active { display: block; }

.progress-bar-bg {
  height: 8px;
  background: var(--bg-secondary);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 4px;
  transition: width 0.3s ease;
  width: 0%;
}

.progress-text {
  margin-top: 8px;
  font-size: 0.82rem;
  color: var(--text-secondary);
  text-align: center;
}

/* ===== Result / Download ===== */
.result-section {
  margin-top: 24px;
  padding: 24px;
  background: rgba(16,185,129,0.06);
  border: 1px solid rgba(16,185,129,0.2);
  border-radius: var(--radius);
  text-align: center;
  display: none;
}

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

.result-section h3 {
  color: var(--success);
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.result-section p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 32px;
  background: var(--success);
  color: white;
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.95rem;
  transition: all var(--transition);
  border: none;
}

.download-btn:hover {
  background: #059669;
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(16,185,129,0.3);
}

/* ===== Toast ===== */
.toast-container {
  position: fixed;
  top: 80px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  padding: 14px 20px;
  border-radius: 10px;
  font-size: 0.88rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  animation: slideIn 0.3s ease, fadeOut 0.3s ease 2.7s forwards;
  max-width: 360px;
}

.toast.success { background: var(--success); color: white; }
.toast.error { background: var(--danger); color: white; }
.toast.info { background: var(--primary); color: white; }

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

@keyframes fadeOut {
  to { transform: translateX(100%); opacity: 0; }
}

/* ===== Edit Canvas ===== */
.edit-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  align-items: center;
}

.edit-toolbar .separator {
  width: 1px;
  height: 32px;
  background: var(--border);
  margin: 0 4px;
}

.tool-btn {
  padding: 8px 14px;
  border-radius: 8px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 600;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}

.tool-btn:hover { border-color: var(--primary); color: var(--primary); }
.tool-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.edit-canvas-container {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: #525659;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 24px;
  min-height: 500px;
}

.edit-canvas-wrapper {
  position: relative;
  box-shadow: var(--shadow-xl);
}

.edit-canvas-wrapper canvas {
  display: block;
}

#overlay-canvas {
  position: absolute;
  top: 0;
  left: 0;
  cursor: crosshair;
}

.page-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 16px;
}

.page-nav button {
  padding: 8px 18px;
  border-radius: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  font-weight: 600;
  font-size: 0.85rem;
  transition: all var(--transition);
}

.page-nav button:hover:not(:disabled) {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.page-nav button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.page-nav span {
  font-size: 0.9rem;
  font-weight: 600;
}

/* ===== Watermark Options ===== */
.watermark-preview {
  margin-top: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: #525659;
  display: flex;
  justify-content: center;
  padding: 24px;
}

.watermark-preview canvas {
  box-shadow: var(--shadow-xl);
  max-width: 100%;
  height: auto;
}

/* ===== Footer ===== */
.footer {
  text-align: center;
  padding: 32px 24px;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ===== Animations ===== */
.fade-in {
  animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.stagger > * {
  opacity: 0;
  animation: fadeIn 0.4s ease forwards;
}

.stagger > *:nth-child(1) { animation-delay: 0.05s; }
.stagger > *:nth-child(2) { animation-delay: 0.1s; }
.stagger > *:nth-child(3) { animation-delay: 0.15s; }
.stagger > *:nth-child(4) { animation-delay: 0.2s; }
.stagger > *:nth-child(5) { animation-delay: 0.25s; }
.stagger > *:nth-child(6) { animation-delay: 0.3s; }
.stagger > *:nth-child(7) { animation-delay: 0.35s; }
.stagger > *:nth-child(8) { animation-delay: 0.4s; }
.stagger > *:nth-child(9) { animation-delay: 0.45s; }
.stagger > *:nth-child(10) { animation-delay: 0.5s; }

/* ===== Loading Spinner ===== */
.spinner {
  width: 20px;
  height: 20px;
  border: 2.5px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .hero { padding: 50px 16px; }
  .tools-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .tool-card { padding: 20px 16px; }
  .features-bar { grid-template-columns: 1fr; }
  .tool-page { padding: 24px 16px 60px; }
  .option-row { flex-direction: column; gap: 12px; }
  .preview-grid { grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); }
  .edit-toolbar { gap: 6px; }
  .tool-btn { padding: 6px 10px; font-size: 0.78rem; }
}

@media (max-width: 480px) {
  .tools-grid { grid-template-columns: 1fr; }
  .header-inner { padding: 0 16px; }
}

/* ===== Cross-Tool Suggestions ===== */
.next-tools-section {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.next-tools-section h4 {
  text-align: center;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 14px;
}

.next-tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
}

.next-tool-card {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
  transition: all var(--transition);
}

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

.next-tool-icon { font-size: 1.1rem; }

/* ===== PWA Install Banner ===== */
.install-banner {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  background: var(--bg-card);
  border: 1px solid var(--primary);
  border-radius: var(--radius);
  box-shadow: var(--shadow-xl);
  z-index: 999;
  font-size: 0.88rem;
  font-weight: 500;
  animation: slideUp 0.4s ease;
  max-width: 90vw;
}

@keyframes slideUp {
  from { transform: translateX(-50%) translateY(100px); opacity: 0; }
  to { transform: translateX(-50%) translateY(0); opacity: 1; }
}

.install-btn {
  padding: 8px 20px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background var(--transition);
  white-space: nowrap;
}

.install-btn:hover { background: var(--primary-dark); }

.install-dismiss {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1rem;
  padding: 4px;
}

/* ===== Sign Tool ===== */
.signature-pad-container {
  border: 2px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: white;
  margin: 16px 0;
}

.signature-pad-container canvas {
  width: 100%;
  display: block;
  cursor: crosshair;
}

.signature-type-input {
  width: 100%;
  padding: 20px;
  font-size: 2rem;
  font-family: 'Brush Script MT', 'Dancing Script', cursive, serif;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  background: white;
  color: #1e293b;
  text-align: center;
  margin: 16px 0;
}

/* ===== PDF Reader ===== */
.reader-container {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: #525659;
  min-height: 600px;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px;
}

.reader-container canvas {
  max-width: 100%;
  box-shadow: var(--shadow-xl);
}

.reader-toolbar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.reader-toolbar button,
.reader-toolbar select {
  padding: 6px 14px;
  border-radius: 8px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}

.reader-toolbar button:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* ===== Redact Tool ===== */
.redact-canvas-container {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: #525659;
  display: flex;
  justify-content: center;
  padding: 24px;
  min-height: 500px;
}

.redact-canvas-wrapper {
  position: relative;
  box-shadow: var(--shadow-xl);
}

.redact-canvas-wrapper canvas { display: block; }

#redact-overlay {
  position: absolute;
  top: 0;
  left: 0;
  cursor: crosshair;
}