/*
   1. CSS VARIABLES & THEME
 */

:root {
    --bg: #f8fafc;
    --surface: #ffffff;
    --text-primary: #111827;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --imvidia-light: #8DFFFF;
    --imvidia-primary: #49C2FA;
    --imvidia-dark: #1F2468;
}

.dark {
    --bg: #020617;
    --surface: #111827;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #334155;
}

/* 
   2. DARK MODE COLOR OVERRIDES
 */

body {
    background-color: var(--bg) !important;
    color: var(--text-primary) !important;
}

.dark .bg-white { 
    background-color: var(--surface) !important; 
}

.dark .bg-gray-50 { 
    background-color: #020617 !important; 
}

.dark .bg-gray-100 { 
    background-color: #17203a !important; 
}

.dark .bg-gray-900 { 
    background-color: #020617 !important; 
}

.dark .bg-gray-700 { 
    background-color: #1f2937 !important; 
}

.dark .text-gray-900,
.dark .text-gray-800,
.dark .text-gray-700 { 
    color: var(--text-primary) !important; 
}

.dark .text-gray-600,
.dark .text-gray-500,
.dark .text-gray-400 { 
    color: var(--text-secondary) !important; 
}

.dark .border-gray-100,
.dark .border-gray-200 { 
    border-color: var(--border-color) !important; 
}

.dark .shadow-sm,
.dark .shadow-md,
.dark .shadow-xl { 
    box-shadow: 0 10px 15px -3px rgba(15, 23, 42, 0.4), 0 4px 6px -4px rgba(15, 23, 42, 0.1) !important; 
}

/* 
   3. COMPONENT STYLES
 */

/* Dashboard Widget Cards */
.widget-card {
    background-color: var(--surface);
    padding: 1.5rem;
    border-radius: 0.75rem;
    border: 1px solid var(--border-color);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.widget-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.15);
}

/* Sidebar Navigation */
.sidebar {
    background-color: var(--surface);
    border-right: 1px solid var(--border-color);
    transition: background-color 0.3s ease;
}

.sidebar nav a {
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sidebar nav a:hover {
    background-color: rgba(73, 194, 250, 0.1);
    color: var(--imvidia-primary);
}

.sidebar nav a.active {
    background-color: var(--imvidia-primary);
    color: white;
    box-shadow: 0 2px 8px rgba(73, 194, 250, 0.3);
}

/* Tables */
.table-container {
    border-radius: 0.75rem;
    overflow: hidden;
    background-color: var(--surface);
    border: 1px solid var(--border-color);
}

.table-header {
    background-color: #f9fafb;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.dark .table-header {
    background-color: rgba(15, 23, 42, 0.4);
}

.table-row {
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s ease;
}

.table-row:hover {
    background-color: rgba(73, 194, 250, 0.05);
}

.dark .table-row:hover {
    background-color: rgba(73, 194, 250, 0.1);
}

/* Buttons */
.btn-primary {
    background-color: var(--imvidia-primary);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: var(--imvidia-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(73, 194, 250, 0.3);
}

.btn-secondary {
    background-color: var(--border-color);
    color: var(--text-primary);
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background-color: #cbd5e1;
    transform: translateY(-2px);
}

/* Icon Containers */
.icon-box {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    background-color: #f3f4f6;
    color: var(--text-muted);
}

.dark .icon-box {
    background-color: rgba(15, 23, 42, 0.5);
}

/* 
   4. ANIMATIONS & TRANSITIONS
 */

/* Dropdown Menu Animation */
.dropdown-wrapper {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.dropdown-wrapper.open {
    grid-template-rows: 1fr;
}

.dropdown-inner {
    overflow: hidden;
    opacity: 0;
    transform: translateY(-10px); 
    transition: opacity 0.4s ease-out, transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.dropdown-wrapper.open .dropdown-inner {
    opacity: 1;
    transform: translateY(0); 
}

/* Smooth Fade In */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.fade-in {
    animation: fadeIn 0.3s ease-in;
}

/* Slide Down */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-down {
    animation: slideDown 0.3s ease-out;
}

/* 
   5. UTILITY CLASSES
 */

/* Shadows */
.shadow-imvidia {
    box-shadow: 0 4px 15px rgba(73, 194, 250, 0.2);
}

/* Text Utilities */
.text-imvidia {
    color: var(--imvidia-primary);
}

.text-imvidia-light {
    color: var(--imvidia-light);
}

/* Transitions */
.transition-all {
    transition: all 0.3s ease;
}

.transition-colors {
    transition: background-color 0.3s ease, color 0.3s ease;
}

.transition-transform {
    transition: transform 0.3s ease;
}

/* Responsive Typography */
.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }

/* Spacing Utilities */
.gap-sm { gap: 0.5rem; }
.gap-md { gap: 1rem; }
.gap-lg { gap: 1.5rem; }
.gap-xl { gap: 2rem; }

/* Flex Utilities */
.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.flex-col-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* Container Utilities */
.container-max {
    max-width: 80rem;
    margin: 0 auto;
}

.container-md {
    max-width: 56rem;
    margin: 0 auto;
}

/* Overflow Utilities */
.overflow-hidden-y {
    overflow-y: hidden;
}

.overflow-auto-y {
    overflow-y: auto;
}

/* 
   6. RESPONSIVE HELPERS
 */

@media (max-width: 768px) {
    .sidebar {
        position: absolute;
        left: 0;
        top: 0;
        height: 100vh;
        z-index: 40;
    }
    
    .widget-card {
        padding: 1rem;
    }
}

@media (max-width: 640px) {
    .widget-card {
        min-height: auto;
    }
    
    .table-container {
        font-size: 0.875rem;
    }
}