/* style.css - Global Styles for PDF Suite Tools - Fixed Navbar */

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

:root {
  --primary: #4F46E5;
  --primary-dark: #4338CA;
  --secondary: #06B6D4;
  --success: #10B981;
  --warning: #F59E0B;
  --danger: #EF4444;
  --bg: #FFFFFF;
  --bg-secondary: #F9FAFB;
  --text: #111827;
  --text-secondary: #6B7280;
  --border: #E5E7EB;
  --shadow: rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
  --primary: #6366F1;
  --primary-dark: #4F46E5;
  --secondary: #22D3EE;
  --success: #34D399;
  --warning: #FBBF24;
  --danger: #F87171;
  --bg: #111827;
  --bg-secondary: #1F2937;
  --text: #F9FAFB;
  --text-secondary: #9CA3AF;
  --border: #374151;
  --shadow: rgba(0, 0, 0, 0.3);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background 0.3s, color 0.3s;
  margin: 0;
  padding: 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navbar - FIXED ALIGNMENT */
.navbar {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 20px;
  gap: 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
  flex-shrink: 0;
}

/* Logo image variants (light/dark) */

.logo-img {
  display: block;
  height: 60px; /* increased for a slightly larger appearance */
  width: auto;
  object-fit: contain;
}

.logo .logo-text {
  display: none; /* keep textual fallback hidden by default */
}

/* Show appropriate logo variant based on data-theme on the root */
/* Light theme (default) shows .logo--light */
[data-theme="light"] .logo--light { display: block; }
[data-theme="light"] .logo--dark { display: none; }

/* Dark theme shows .logo--dark */
[data-theme="dark"] .logo--dark { display: block; }
[data-theme="dark"] .logo--light { display: none; }

/* Slightly reduce size on small screens */
@media (max-width: 480px) {
  .logo-img { height: 60px; /* slightly larger on small screens */ }
}

.main-nav {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  flex: 1;
  justify-content: center;
}

.main-nav > a {
  color: var(--text);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  transition: all 0.2s;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
}

.main-nav > a:hover, 
.main-nav > a.active {
  background: var(--bg-secondary);
  color: var(--primary);
}

.dropdown {
  position: relative;
  display: inline-block;
}

.dropbtn {
  background: none;
  border: none;
  color: var(--text);
  padding: 0.5rem 1rem;
  cursor: pointer;
  font-size: 1rem;
  border-radius: 6px;
  transition: all 0.2s;
  font-family: inherit;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  height: 100%;
}

.dropbtn:hover {
  background: var(--bg-secondary);
  color: var(--primary);
}

.dropdown-content {
  display: none;
  position: absolute;
  background: var(--bg);
  min-width: 200px;
  box-shadow: 0 8px 16px var(--shadow);
  border-radius: 8px;
  border: 1px solid var(--border);
  margin-top: 0;
  top: 100%;
  left: 0;
  z-index: 1000;
}

.dropdown:hover .dropdown-content {
  display: block;
}

.dropdown-content a {
  padding: 12px 16px;
  display: block;
  color: var(--text);
  text-decoration: none;
  transition: all 0.2s;
}

.dropdown-content a:first-child {
  border-radius: 8px 8px 0 0;
}

.dropdown-content a:last-child {
  border-radius: 0 0 8px 8px;
}

.dropdown-content a:hover {
  background: var(--bg-secondary);
  color: var(--primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.theme-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1.2rem;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 45px;
  height: 45px;
}

.theme-btn:hover {
  background: var(--primary);
  transform: scale(1.05);
}

.mobile-menu-toggle {
  display: none;
}

/* Page Headers */
.page-title {
  font-size: 2.5rem;
  margin: 2rem 0 1rem;
  color: var(--primary);
  text-align: center;
}

.lead {
  font-size: 1.2rem;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 2rem;
}

.tool-header {
  text-align: center;
  margin: 3rem 0 2rem;
}

.tool-header h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--primary);
}

.tool-header p {
  font-size: 1.1rem;
  color: var(--text-secondary);
}

/* Upload Area */
.upload-area {
  background: var(--bg-secondary);
  border: 2px dashed var(--border);
  border-radius: 16px;
  padding: 3rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s;
  margin: 2rem 0;
}

.upload-area:hover {
  border-color: var(--primary);
  background: var(--bg);
}

.upload-area.dragover {
  border-color: var(--primary);
  background: var(--primary);
  opacity: 0.2;
}

.upload-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
  color: var(--primary);
}

.upload-area h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.upload-area p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.file-input {
  display: none;
}

/* Buttons */
.btn {
  background: var(--primary);
  color: white;
  border: none;
  padding: 0.75rem 2rem;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: inherit;
}

.btn:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--shadow);
}

.btn:disabled {
  background: var(--text-secondary);
  cursor: not-allowed;
  transform: none;
  opacity: 0.6;
}

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text);
  border: 1px solid var(--border);
}

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

/* File List */
.file-list {
  margin: 2rem 0;
}

.file-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all 0.2s;
}

.file-item:hover {
  box-shadow: 0 4px 12px var(--shadow);
}

.file-info {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex: 1;
}

.file-icon {
  font-size: 2rem;
}

.file-details h4 {
  margin-bottom: 0.25rem;
  color: var(--text);
}

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

.file-actions {
  display: flex;
  gap: 0.5rem;
}

.icon-btn {
  background: none;
  border: 1px solid var(--border);
  padding: 0.5rem;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 1.2rem;
  min-width: 40px;
  min-height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.icon-btn:hover:not(:disabled) {
  background: var(--bg-secondary);
  border-color: var(--primary);
  color: var(--primary);
}

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

/* Progress Bar */

/* Download area (appears after processing completes) */
.download-area {
  text-align: center;
  margin: 1.5rem 0;
}
.download-area .small-note {
  display: block;
  margin-top: 0.5rem;
  color: var(--muted, #6b6b6b);
  font-size: 0.92rem;
}
.progress-container {
  margin: 2rem 0;
}

.progress {
  background: var(--border);
  border-radius: 8px;
  height: 8px;
  overflow: hidden;
  margin: 1rem 0;
}

.progress-bar {
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  height: 100%;
  transition: width 0.3s;
  border-radius: 8px;
  width: 0%;
}

/* Settings Panel */
.settings-panel {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 2rem;
  margin: 2rem 0;
  border: 1px solid var(--border);
}

.settings-panel h3 {
  margin-bottom: 1.5rem;
  color: var(--primary);
}

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

.setting-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text);
}

.setting-group select,
.setting-group input[type="range"],
.setting-group input[type="text"],
.setting-group input[type="number"],
.setting-group input[type="password"],
.setting-group input[type="email"],
.setting-group textarea {
  width: 100%;
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
}

.setting-group select:focus,
.setting-group input:focus,
.setting-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

/* Grid Layout */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  text-decoration: none;
  color: var(--text);
  transition: all 0.3s;
  display: block;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px var(--shadow);
  border-color: var(--primary);
}

.card h3 {
  color: var(--primary);
  margin-bottom: 0.5rem;
  font-size: 1.5rem;
}

.card p {
  color: var(--text-secondary);
}

/* Help Section */
.help {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 2rem;
  margin: 2rem 0;
}

.help h2 {
  color: var(--primary);
  margin-bottom: 1rem;
}

.help ul {
  list-style: none;
  padding: 0;
}

.help li {
  padding: 0.5rem 0;
  color: var(--text);
}

.help strong {
  color: var(--primary);
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  text-align: center;
  margin-top: 4rem;
}

.footer nav {
  margin-bottom: 1rem;
}

.footer a {
  color: var(--text);
  text-decoration: none;
  margin: 0 0.5rem;
  transition: color 0.2s;
}

.footer a:hover {
  color: var(--primary);
}

.footer small {
  color: var(--text-secondary);
}

/* Ads */
.ad-container {
  display: flex;
  gap: 2rem;
  position: relative;
}

.ad-content {
  flex: 1;
  min-width: 0;
}

.ad-sidebar {
  width: 160px;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  position: sticky;
  top: 100px;
  height: fit-content;
}

.ad {
  margin: 2rem 0;
  min-height: 90px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
}

.ad-top {
  margin-top: 2rem;
  margin-bottom: 2rem;
}

.ad-mid {
  margin: 3rem 0;
}

.ad-bottom {
  margin: 2rem 0 2rem 0;
}

.ad-top-banner,
.ad-bottom-banner {
  margin: 2rem 0;
  min-height: 90px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
}

.ad-sidebar .ad {
  margin: 0;
  min-height: 600px;
  width: 100%;
}

/* Responsive */
@media (max-width: 1024px) {
  .ad-container {
    flex-direction: column;
    gap: 1rem;
  }

  .ad-sidebar {
    width: 100%;
    flex-direction: row;
    position: static;
    gap: 2rem;
  }

  .ad-sidebar .ad {
    min-height: 90px;
    width: 160px;
  }
}

@media (max-width: 768px) {
  .ad-sidebar {
    display: none;
  }

  .main-nav {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 1rem;
    flex-direction: column;
    gap: 0;
    box-shadow: 0 4px 12px var(--shadow);
    max-height: calc(100vh - 60px);
    overflow-y: auto;
    z-index: 999;
    align-items: stretch;
    justify-content: flex-start;
  }

  .main-nav.active {
    display: flex;
  }

  .main-nav > a {
    padding: 0.75rem 1rem;
    border-radius: 6px;
    width: 100%;
  }

  .main-nav .dropdown {
    width: 100%;
  }

  .main-nav .dropbtn {
    width: 100%;
    text-align: left;
    padding: 0.75rem 1rem;
    justify-content: space-between;
  }

  .main-nav .dropdown-content {
    position: static;
    display: none;
    box-shadow: none;
    border: none;
    margin: 0;
    padding-left: 1rem;
    background: transparent;
  }

  .main-nav .dropdown-content.active {
    display: block;
  }

  .main-nav .dropdown-content a {
    padding: 0.5rem 1rem;
  }

  .mobile-menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: 1px solid var(--border);
    padding: 0.5rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--text);
    width: 45px;
    height: 45px;
  }

  .mobile-menu-toggle:hover {
    background: var(--bg-secondary);
  }

  .tool-header h1,
  .page-title {
    font-size: 2rem;
  }

  .upload-area {
    padding: 2rem 1rem;
  }

  .upload-icon {
    font-size: 3rem;
  }

  .file-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .file-actions {
    width: 100%;
    justify-content: flex-end;
  }

  .grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .settings-panel {
    padding: 1.5rem;
  }
}

@media (max-width: 480px) {
  .logo {
    font-size: 1.2rem;
  }

  .tool-header h1,
  .page-title {
    font-size: 1.75rem;
  }

  .tool-header p,
  .lead {
    font-size: 1rem;
  }

  .btn {
    padding: 0.65rem 1.5rem;
    font-size: 0.95rem;
  }
}