/* Global Resets & Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

body {
    font-family: 'Inter', sans-serif;
    background-color: #f3f4f6; /* gray-50 */
    margin: 0;
    padding: 0;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}
.animate-up {
    animation: fadeIn 0.4s ease-out forwards;
}

/* Dashboard Layout */
.dashboard-layout {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background-color: #ffffff;
    border-right: 1px solid #e2e8f0;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: transform 0.3s ease-in-out;
    z-index: 50;
}

/* Topbar */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
    background-color: #f8fafc;
}

.top-bar {
    height: 64px;
    background-color: #ffffff;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    align-items: center;
    padding: 0 24px;
    flex-shrink: 0;
}

.content-area {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
}

/* Responsive Sidebar */
@media (max-width: 1024px) {
    .sidebar {
        position: fixed;
        height: 100%;
        transform: translateX(-100%);
    }
    .sidebar.open {
        transform: translateX(0);
    }
}

/* Utility Classes for Cards */
.dashboard-card {
    background: white;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    padding: 20px;
    transition: all 0.2s;
}
.dashboard-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* Category Card Styling (Matches App.js logic class) */
.category-card {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}
.category-card:hover {
    border-color: #3b82f6;
    box-shadow: 0 4px 6px -1px rgba(59, 130, 246, 0.1);
    transform: translateY(-2px);
}
.category-card i {
    font-size: 2rem;
    color: #3b82f6;
    background: #eff6ff;
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin-bottom: 8px;
}
.category-card h3 {
    font-weight: 600;
    color: #1e293b;
    margin: 0;
}
.category-card p {
    color: #64748b;
    font-size: 0.875rem;
    margin: 0;
}

/* Special Exam Card Override */
#special-exams-grid .category-card {
    background: linear-gradient(145deg, #1e293b, #0f172a);
    border: 1px solid rgba(251, 191, 36, 0.2);
    border-top: 4px solid #fbbf24;
    color: white;
}
#special-exams-grid .category-card:hover {
    box-shadow: 0 10px 15px -3px rgba(251, 191, 36, 0.1);
}
#special-exams-grid .category-card i {
    background: rgba(251, 191, 36, 0.1);
    color: #fbbf24;
}
#special-exams-grid .category-card h3 {
    color: #fbbf24;
}
#special-exams-grid .category-card p {
    color: #94a3b8;
}