/* ===================================
   RESET & VARIABLES
   =================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Dark Theme Colors */
  --bg-primary: #0f0f0f;
  --bg-secondary: #1a1a1a;
  --bg-tertiary: #242424;
  --bg-hover: #2a2a2a;

  --text-primary: #ffffff;
  --text-secondary: #b3b3b3;
  --text-muted: #737373;

  --border: #333333;
  --border-hover: #404040;

  /* Brand Colors */
  --primary: #8b5cf6;
  --primary-hover: #7c3aed;
  --primary-light: rgba(139, 92, 246, 0.1);

  --success: #22c55e;
  --success-light: rgba(34, 197, 94, 0.1);

  --warning: #f59e0b;
  --danger: #ef4444;

  /* Sizing */
  --sidebar-width: 240px;
  --top-nav-height: 60px;
  --radius: 8px;
  --radius-lg: 12px;

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ===================================
   LAYOUT STRUCTURE
   =================================== */
.content-wrapper {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: margin-left 0.3s ease;
}

body.sidebar-collapsed .content-wrapper {
  margin-left: 60px;
}

body.sidebar-collapsed .footer {
  left: 60px;
}

.footer {
  left: var(--sidebar-width);
}

/* ===================================
   MAIN CONTENT
   =================================== */
.main-content {
  flex: 1;
  padding: var(--spacing-xl);
  padding-bottom: 120px; /* Space for fixed footer */
}

/* ===================================
   TOP NAVIGATION (TABS)
   =================================== */
.top-nav {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  position: sticky;
  top: 72px;
  background: var(--bg-primary);
  z-index: 900;
  backdrop-filter: blur(8px);
}

.tab-btn {
  padding: var(--spacing-md) var(--spacing-lg);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.tab-btn:hover {
  background: var(--bg-hover);
  border-color: var(--border-hover);
  color: var(--text-primary);
}

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

/* ===================================
   TOOLS GRID
   =================================== */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  animation: fadeIn 0.3s ease;
}

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

/* ===================================
   TOOL CARD
   =================================== */
.tool-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.3s ease;
  cursor: pointer;
  position: relative;
}

.tool-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: 0 12px 24px rgba(139, 92, 246, 0.2);
}

.card-image {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
  background: var(--bg-tertiary);
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.tool-card:hover .card-image img {
  transform: scale(1.05);
}

.card-badges {
  position: absolute;
  top: var(--spacing-md);
  left: var(--spacing-md);
  right: var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.status-badge {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--success);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 14px;
}

.type-badges {
  display: flex;
  gap: var(--spacing-sm);
}

.type-badge {
  padding: 4px 8px;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  color: white;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.type-badge.ai {
  background: rgba(139, 92, 246, 0.9);
}

.type-badge.new {
  background: rgba(34, 197, 94, 0.9);
}

.type-badge.pro {
  background: rgba(245, 158, 11, 0.9);
}

.card-content {
  padding: var(--spacing-lg);
}

.card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.card-description {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: var(--spacing-lg);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border);
  flex-wrap: nowrap;
}

.action-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 10px 16px;
  background: linear-gradient(
    135deg,
    var(--primary) 0%,
    var(--primary-hover) 100%
  );
  color: white;
  border: none;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  flex-shrink: 0;
}

.action-btn:hover {
  transform: translateX(4px);
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.4);
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
  flex-shrink: 0;
}

.card-meta .iconify {
  font-size: 14px;
  color: var(--primary);
}

/* ===================================
   RESPONSIVE
   =================================== */
@media (max-width: 1400px) {
  .tools-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  }
}

@media (max-width: 1024px) {
  .tools-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }
}

@media (max-width: 768px) {
  .content-wrapper {
    margin-left: 0;
  }

  .main-content {
    padding: var(--spacing-md);
    padding-bottom: 120px;
  }

  .tools-grid {
    grid-template-columns: 1fr;
  }
}

/* ===================================
   SCROLLBAR
   =================================== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--bg-hover);
}