:root {
  --primary: #e74237;
  --primary-hover: #d33126;
  --primary-light: #fff0ef;
  --secondary: #3b82f6;
  --accent: #8b5cf6;
  --bg-main: #f8fafc;
  --card-bg: #ffffff;
  --text-dark: #0f172a;
  --text-muted: #64748b;
  --border-color: #e2e8f0;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
  --font-main: 'Cairo', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Cairo', 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html[dir="rtl"] {
  direction: rtl;
  text-align: right;
}

html[dir="ltr"] {
  direction: ltr;
  text-align: left;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-main);
  color: var(--text-dark);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  letter-spacing: -0.01em;
}

a {
  text-decoration: none;
  color: inherit;
}

/* Header */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  height: 72px;
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}

.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, #e74237 0%, #ff5247 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 4px 12px rgba(231, 66, 55, 0.3);
}

.brand-title {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-dark);
}

.brand-badge {
  font-size: 10px;
  font-weight: 800;
  background: linear-gradient(135deg, #e74237, #ff6b4a);
  color: white;
  padding: 2px 8px;
  border-radius: 12px;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav-link {
  font-size: 15px;
  font-weight: 600;
  color: #334155;
  transition: color 0.2s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--primary);
}

.lang-btn {
  background: #f1f5f9;
  border: 1px solid #cbd5e1;
  padding: 6px 14px;
  border-radius: 20px;
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  color: #0f172a;
  transition: all 0.2s ease;
}
.lang-btn:hover {
  background: #e2e8f0;
  border-color: #94a3b8;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, #e74237 0%, #ff5247 100%);
  color: white;
  box-shadow: 0 4px 12px rgba(231, 66, 55, 0.25);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(231, 66, 55, 0.35);
  background: linear-gradient(135deg, #d33126 0%, #e74237 100%);
}

.btn-secondary {
  background: #ffffff;
  color: #334155;
  border: 1px solid #cbd5e1;
}

.btn-secondary:hover {
  background: #f8fafc;
  border-color: #94a3b8;
  color: var(--text-dark);
}

.btn-danger-outline {
  background: transparent;
  color: #ef4444;
  border: 1px solid #fca5a5;
}
.btn-danger-outline:hover {
  background: #fef2f2;
}

/* Dropzone */
.dropzone {
  border: 2px dashed #cbd5e1;
  border-radius: var(--radius-lg);
  padding: 56px 24px;
  text-align: center;
  background: #ffffff;
  transition: all 0.2s ease;
  cursor: pointer;
  margin-bottom: 32px;
}

.dropzone:hover {
  border-color: var(--primary);
  background: var(--primary-light);
}

.dropzone-icon {
  width: 64px;
  height: 64px;
  border-radius: 20px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 32px;
}

/* Hero */
.hero {
  background: linear-gradient(180deg, #fff0ef 0%, #ffffff 100%);
  padding: 64px 24px 48px;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

.hero-container {
  max-width: 900px;
  margin: 0 auto;
}

.hero-title {
  font-size: 44px;
  font-weight: 800;
  color: var(--text-dark);
  line-height: 1.25;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 720px;
  margin: 0 auto 36px;
}

/* Tools Grid */
.tools-section {
  max-width: 1280px;
  margin: 0 auto;
  padding: 60px 24px;
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 48px;
}

.tool-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  cursor: pointer;
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

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

.tool-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 24px;
}

/* Canvas & Tool Workspace */
.editor-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 24px;
  align-items: start;
}

.toolbar-panel {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.tool-btn-group {
  display: grid;
  gap: 8px;
}

.tool-action-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: #475569;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.15s ease;
}

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

.canvas-viewport {
  background: #334155;
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  justify-content: center;
  overflow: auto;
  min-height: 600px;
  position: relative;
  box-shadow: inset 0 2px 8px rgba(0,0,0,0.15);
}

/* JOPDF Ribbon Bar */
.jopdf-ribbon-bar {
  background: #ffffff;
  border-bottom: 1px solid #e2e8f0;
  padding: 10px 24px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.03);
}

.jopdf-tabs {
  display: flex;
  gap: 12px;
  border-bottom: 2px solid #f1f5f9;
  margin-bottom: 10px;
  overflow-x: auto;
}

.jopdf-tab {
  font-size: 13px;
  font-weight: 700;
  color: #64748b;
  padding: 8px 14px;
  cursor: pointer;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: all 0.2s ease;
  white-space: nowrap;
  border-radius: 6px 6px 0 0;
}

.jopdf-tab:hover {
  color: #2563eb;
  background: #f8fafc;
}

.jopdf-tab.active {
  color: #2563eb;
  border-bottom-color: #2563eb;
  background: #eff6ff;
}

.jopdf-ribbon-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

/* Thumbnail Navigator Sidebar */
.jopdf-app-layout {
  display: grid;
  grid-template-columns: 240px 1fr 280px;
  gap: 20px;
  padding: 20px 24px;
  min-height: calc(100vh - 160px);
}

@media (max-width: 1024px) {
  .jopdf-app-layout {
    grid-template-columns: 1fr;
  }
}

.thumbnail-sidebar {
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 14px;
  overflow-y: auto;
  max-height: 820px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.02);
}

.thumb-card {
  background: #f8fafc;
  border: 2px solid #e2e8f0;
  border-radius: 10px;
  padding: 8px;
  margin-bottom: 14px;
  cursor: pointer;
  text-align: center;
  transition: all 0.2s ease;
  position: relative;
}

.thumb-card:hover {
  border-color: #93c5fd;
  transform: translateY(-2px);
}

.thumb-card.active {
  border-color: #2563eb;
  background: #eff6ff;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.15);
}

.thumb-card canvas {
  width: 100%;
  height: auto;
  border-radius: 4px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}

.thumb-label {
  font-size: 12px;
  font-weight: 700;
  color: #475569;
  margin-top: 6px;
}

/* Stamp Badges & Overlays */
.preset-stamp-badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  margin: 3px;
  border: 2px solid currentColor;
  user-select: none;
  transition: all 0.15s ease;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.preset-stamp-badge:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 10px rgba(0,0,0,0.12);
}

.preset-stamp-badge:active {
  transform: scale(0.98);
}

/* Interactive Text Input Box */
.inline-text-box {
  position: absolute;
  border: 2px dashed #2563eb;
  background: rgba(255, 255, 255, 0.96);
  border-radius: 6px;
  padding: 4px 8px;
  box-shadow: 0 6px 16px rgba(0,0,0,0.18);
  outline: none;
  min-width: 60px;
  z-index: 100;
  font-family: 'Cairo', 'Helvetica', sans-serif;
  color: #0f172a;
}

/* Detected OCR & Native Bounding Boxes */
.detected-text-box {
  position: absolute;
  border: 1px dashed #e74237;
  background: rgba(231, 66, 55, 0.1);
  border-radius: 3px;
  cursor: pointer;
  z-index: 90;
  transition: background 0.15s;
}

.detected-text-box:hover {
  background: rgba(231, 66, 55, 0.3);
  border: 1.5px solid #e74237;
}

.ocr-word-box {
  position: absolute;
  border: 1px dashed #8b5cf6;
  background: rgba(139, 92, 246, 0.15);
  border-radius: 3px;
  cursor: pointer;
  z-index: 92;
  transition: all 0.15s;
}

.ocr-word-box:hover {
  background: rgba(139, 92, 246, 0.38);
  border: 1.5px solid #7c3aed;
}

/* Color Swatches */
.color-swatch {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  cursor: pointer;
  display: inline-block;
  border: 2px solid #ffffff;
  box-shadow: 0 0 0 1px #cbd5e1;
  transition: transform 0.15s;
}

.color-swatch:hover {
  transform: scale(1.15);
}

/* Footer */
footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 60px 24px 36px;
  margin-top: auto;
  border-top: 1px solid #1e293b;
}

.footer-container {
  max-width: 1280px;
  margin: 0 auto;
}