/* Global Theme Variables */
@font-face {
  font-family: 'Outfit';
  src: url('fonts/Outfit-Variable.ttf') format('truetype');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  /* Default: Light Theme */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --border-color: #e2e8f0;
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.05), 0 2px 4px -2px rgb(0 0 0 / 0.05);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.05), 0 4px 6px -4px rgb(0 0 0 / 0.05);
  --card-glow: rgba(59, 130, 246, 0.03);
  --overlap-color: #10b981; /* High contrast green */
  --font-family: 'Outfit', 'Inter', system-ui, -apple-system, sans-serif;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Medium Mode (Dim Slate) */
[data-theme="medium"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --accent: #60a5fa;
  --accent-hover: #3b82f6;
  --border-color: #334155;
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.2), 0 2px 4px -2px rgb(0 0 0 / 0.2);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.3);
  --card-glow: rgba(96, 165, 250, 0.05);
  --overlap-color: #10b981;
}

/* Dark Mode (True Pitch Black) */
[data-theme="dark"] {
  --bg-primary: #000000;
  --bg-secondary: #0a0a0a;
  --bg-tertiary: #171717;
  --text-primary: #ededed;
  --text-secondary: #a0a0a0;
  --accent: #10b981; /* Premium Emerald/Mint Green for Dark contrast */
  --accent-hover: #059669;
  --border-color: #262626;
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.5);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.7);
  --card-glow: rgba(16, 185, 129, 0.05);
  --overlap-color: #f59e0b; /* Contrast orange for overlap when accent is green */
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-family);
  transition: var(--transition);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
header {
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  transition: var(--transition);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
}

.logo-icon {
  color: var(--accent);
  display: flex;
  align-items: center;
  font-size: 1.5rem;
}

/* Controls */
.controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Theme Selector */
.theme-selector {
  display: flex;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  padding: 0.25rem;
  border-radius: 9999px;
  gap: 0.125rem;
}

.theme-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  transition: var(--transition);
}

.theme-btn.active {
  background-color: var(--bg-secondary);
  color: var(--accent);
  box-shadow: var(--shadow);
  font-weight: 600;
}

/* Main Layout */
.layout {
  display: flex;
  flex: 1;
  gap: 2rem;
  margin-top: 2rem;
  margin-bottom: 3rem;
}

/* Sidebar Navigation */
aside {
  width: 280px;
  flex-shrink: 0;
}

.ad-sidebar {
  width: 300px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  padding-top: 1rem;
}

.mobile-interleaved-ad {
  margin: 1.5rem auto;
}

.sidebar-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem;
  position: sticky;
  top: 90px;
  box-shadow: var(--shadow);
  max-height: calc(100vh - 120px);
  overflow-y: auto;
}

.nav-category {
  margin-bottom: 1.5rem;
}

.nav-category-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  font-weight: 600;
}

.nav-list {
  list-style: none;
}

.nav-item a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  transition: var(--transition);
  font-weight: 500;
}

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

.nav-item.active a {
  background-color: var(--card-glow);
  color: var(--accent);
  font-weight: 600;
  border-left: 3px solid var(--accent);
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  padding-left: calc(0.85rem - 3px);
}

/* Main Content Area */
main {
  flex: 1;
  min-width: 0; /* Prevents flex items from overflowing */
}

/* Dashboard / Hero Grid */
.dashboard-hero {
  margin-bottom: 2.5rem;
  text-align: center;
  padding: 3rem 1.5rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.dashboard-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), #f43f5e);
}

.dashboard-title {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.dashboard-desc {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* Section Header */
.section-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Tool Grid */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

/* Tool Card */
.tool-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.tool-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: var(--shadow-lg);
  background-color: var(--card-glow);
}

.tool-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background-color: var(--bg-tertiary);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
  transition: var(--transition);
}

.tool-card:hover .tool-card-icon {
  background-color: var(--accent);
  color: #ffffff;
}

.tool-card-name {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.tool-card-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  flex: 1;
}

/* Universal Footer */
footer {
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  padding: 3rem 0 1.5rem 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.footer-col-title {
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links a {
  color: var(--text-secondary);
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--accent);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
}


/* Responsive Design */
@media (max-width: 900px) {
  .layout {
    flex-direction: column;
  }
  aside {
    width: 100%;
  }
  .sidebar-card {
    position: static;
    max-height: none;
  }
}

/* Ad Slot Placeholders */
.ad-slot {
  background: var(--bg-tertiary);
  border: 1px dashed var(--border-color);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.6;
  margin: 2rem auto;
  overflow: hidden;
}
.ad-slot.leaderboard {
  width: 100%;
  max-width: 728px;
  height: 90px;
}
.ad-slot.rectangle {
  width: 300px;
  height: 250px;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--accent);
  padding: 1rem;
  box-shadow: 0 -4px 12px rgba(0,0,0,0.2);
  z-index: 9999;
  display: flex;
  justify-content: center;
}
.cookie-content {
  max-width: 800px;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.9rem;
}
.cookie-content p {
  margin: 0;
}
.cookie-content a {
  color: var(--accent);
  text-decoration: underline;
}
.cookie-btn {
  background: var(--accent);
  color: white;
  border: none;
  padding: 0.5rem 1.5rem;
  border-radius: 50px;
  cursor: pointer;
  font-weight: 600;
  white-space: nowrap;
  transition: var(--transition);
}
.cookie-btn:hover {
  background: var(--accent-hover);
  transform: scale(1.05);
}
@media (max-width: 600px) {
  .cookie-content {
    flex-direction: column;
    text-align: center;
  }
}