/* Common CSS Variables and Styles */
:root {
    /* Light theme colors (kept for compatibility) */
    --blue-50: #eff6ff;
    --blue-100: #dbeafe;
    --blue-200: #bfdbfe;
    --blue-300: #93c5fd;
    --blue-400: #60a5fa;
    --blue-500: #3b82f6;
    --blue-600: #2563eb;
    --blue-700: #1d4ed8;
    --blue-800: #1e40af;
    --blue-900: #1e3a8a;

    /* Dark theme colors */
    --dark-bg-primary: #1a1d29;
    --dark-bg-secondary: #0f1419;
    --dark-bg-card: #2d3748;
    --dark-bg-hover: #1e293b;
    --dark-border: #4a5568;
    --dark-border-light: #2d3748;
    --dark-text-primary: #f7fafc;
    --dark-text-secondary: #e2e8f0;
    --dark-text-muted: #a0aec0;
    --dark-accent: #3b82f6;
    --dark-accent-hover: #2563eb;
    --dark-accent-active: #1e3a8a;
}

/* Dark theme base styles */
body {
    background-color: var(--dark-bg-primary);
    color: var(--dark-text-primary);
}

/* Hide elements without layout shift (for admin buttons) */
.hidden-no-shift {
    visibility: hidden;
    pointer-events: none;
    opacity: 0;
    position: absolute;
    width: 0;
    height: 0;
    overflow: hidden;
}

/* Header full-width breakout (minimal CSS for complex calculation) */
.header-full-width {
    margin-left: calc(-50vw + 50%);
    margin-right: calc(-50vw + 50%);
}

/* Dark theme card styles */
.dark-card {
    background-color: var(--dark-bg-card);
    border: 1px solid var(--dark-border-light);
    border-radius: 0.5rem;
    color: var(--dark-text-primary);
}

.dark-card-hover {
    transition: all 0.2s ease;
}

.dark-card-hover:hover {
    background-color: var(--dark-bg-hover);
    border-color: var(--dark-border);
}

/* Dark theme button styles */
.dark-btn {
    background-color: var(--dark-accent);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-weight: 500;
    transition: all 0.2s ease;
    cursor: pointer;
}

.dark-btn:hover {
    background-color: var(--dark-accent-hover);
}

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

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

/* Dark theme input styles */
.dark-input {
    background-color: var(--dark-bg-card);
    border: 1px solid var(--dark-border);
    color: var(--dark-text-primary);
    padding: 0.5rem 0.75rem;
    border-radius: 0.5rem;
}

.dark-input:focus {
    outline: none;
    border-color: var(--dark-accent);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.dark-input::placeholder {
    color: var(--dark-text-muted);
}

/* Dark theme table styles */
.dark-table {
    width: 100%;
    border-collapse: collapse;
}

.dark-table thead {
    background-color: var(--dark-bg-secondary);
}

.dark-table th {
    padding: 0.75rem;
    text-align: left;
    font-weight: 600;
    color: var(--dark-text-primary);
    border-bottom: 1px solid var(--dark-border);
}

.dark-table td {
    padding: 0.75rem;
    color: var(--dark-text-secondary);
    border-bottom: 1px solid var(--dark-border-light);
}

.dark-table tbody tr:hover {
    background-color: var(--dark-bg-hover);
}

/* Dark theme modal styles */
.dark-modal {
    background-color: var(--dark-bg-card);
    border: 1px solid var(--dark-border);
    border-radius: 0.5rem;
    color: var(--dark-text-primary);
}

.dark-modal-overlay {
    background-color: rgba(0, 0, 0, 0.75);
}

/* Chart.js dark theme */
.chart-container {
    background-color: var(--dark-bg-card);
    border-radius: 0.5rem;
    padding: 1rem;
}

/* Scrollbar styling for dark theme */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

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

::-webkit-scrollbar-thumb:hover {
    background: var(--dark-border-light);
}

/* Ensure main content has minimum height to push footer down */
#main-content,
#main-content-wrapper {
    min-height: calc(100vh - 4rem); /* 100vh minus header height (64px = 4rem) */
}

/* Mobile sidebar styles */
@media (max-width: 768px) {
    #sidebar {
        position: fixed;
        left: 0;
        top: 0;
        height: 100vh;
        z-index: 50;
        transition: transform 0.3s ease-in-out;
    }
    
    #sidebar-overlay {
        position: fixed;
        inset: 0;
        z-index: 40;
    }
    
    #main-content {
        padding-left: 0 !important;
        min-height: calc(100vh - 4rem); /* Maintain min-height on mobile too */
    }
    
    #top-header {
        left: 0 !important;
    }
}

/* Footer positioning - ensure it spans full width */
#footer-container {
    width: 100%;
    position: relative;
    z-index: 10;
}

/* Ensure footer spans full width and content is offset */
footer {
    width: 100%;
    position: relative;
    z-index: 10;
    transition: padding-left 0.3s ease-in-out;
    padding-left: 0;
}

/* On desktop, offset content by sidebar width */
@media (min-width: 768px) {
    footer {
        padding-left: 260px;
    }
}