/* Custom CSS Variables */
:root {
    /* Primary Colors */
    --primary: #00856A;
    --primary-dark: #007559;
    --primary-light: #E6FAF7;
    
    /* Water Theme Colors */
    --water-blue: #0891B2;
    --water-blue-dark: #0369A1;
    --water-blue-light: #E0F2FE;
    --water-gradient: linear-gradient(135deg, #0891B2 0%, #00856A 100%);
    
    /* Text Colors */
    --text-primary: #1A1A1A;
    --text-secondary: #4B5563;
    
    /* Background Colors */
    --background: #F0F9FF;
    --white: #FFFFFF;
    --section-bg: #F0FAF8;
    --card-bg: #FFFFFF;
    --hover-bg: #F5FFFD;
    
    /* Footer Colors */
    --footer-bg: #0F172A;
    --footer-text: #E5E7EB;
}

/* General Styles */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* Header & Navigation */
header {
    background-color: var(--primary);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

header .logo-section img {
    width: 2.5rem;
    height: 2.5rem;
    transition: transform 0.3s ease;
}

header .logo-section:hover img {
    transform: scale(1.05);
}

/* Sidebar Styles */
#sidebar {
    background-color: var(--white);
    box-shadow: 4px 0 10px rgba(0, 0, 0, 0.05);
    border-right: 1px solid rgba(8, 145, 178, 0.1);
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.nav-btn:hover {
    background-color: var(--water-blue-light);
    color: var(--water-blue);
}

.nav-btn.active {
    background-color: var(--water-blue-light);
    color: var(--water-blue);
    font-weight: 500;
}

/* Mobile Menu Styles */
#mobile-menu {
    transition: opacity 0.3s ease-in-out;
}

#mobile-sidebar {
    transition: transform 0.3s ease-in-out;
}

#mobile-menu.show {
    display: block;
}

#mobile-menu.show #mobile-sidebar {
    transform: translateX(0);
}

/* Dashboard Cards */
.dashboard-card {
    background-color: var(--white);
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(8, 145, 178, 0.1);
    border: 1px solid rgba(8, 145, 178, 0.1);
}

.stat-card {
    background-color: var(--white);
    border-radius: 1rem;
    padding: 1.5rem;
    transition: all 0.3s ease;
    border: 1px solid rgba(8, 145, 178, 0.1);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px -10px rgba(8, 145, 178, 0.15);
    background-color: var(--hover-bg);
    border-color: var(--water-blue);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.bg-green-50 {
    background-color: var(--primary-light);
}

.bg-blue-50 {
    background-color: var(--water-blue-light);
}

.bg-yellow-50 {
    background-color: #FEF3C7;
}

.bg-purple-50 {
    background-color: #F3E8FF;
}

.text-green-700 {
    color: var(--primary);
}

.text-blue-700 {
    color: var(--water-blue);
}

.text-yellow-700 {
    color: var(--warning);
}

.text-purple-700 {
    color: #7E22CE;
}

/* Bin Status Cards */
.bin-card {
    background: white;
    border-radius: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.bin-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
}

.bin-card .bin-header {
    padding: 1.25rem;
    background: var(--primary);
    border-bottom: 1px solid var(--border-color);
}

.bin-card .bin-content {
    padding: 1.25rem;
}

/* Progress Bars */
.progress-container {
    margin: 1rem 0;
}

.progress-bar {
    height: 8px;
    background-color: var(--background);
    border-radius: 9999px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    transition: width 0.3s ease;
}

.progress-bar-fill.good {
    background: var(--water-gradient);
}

.progress-bar-fill.warning {
    background-color: var(--warning);
}

.progress-bar-fill.danger {
    background-color: var(--danger);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary {
    background: var(--water-gradient);
    color: var(--white);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--water-blue-dark) 0%, var(--primary-dark) 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px -2px rgba(8, 145, 178, 0.3);
}

.btn-secondary {
    background-color: var(--white);
    color: var(--water-blue);
    border: 2px solid var(--water-blue);
}

.btn-secondary:hover {
    background-color: var(--water-blue-light);
    transform: translateY(-2px);
}

/* Charts */
.chart-container {
    background: white;
    border-radius: 1rem;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
}

/* Tables */
.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.data-table th {
    background-color: var(--background);
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 500;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(8, 145, 178, 0.1);
}

.data-table td {
    padding: 1rem;
    border-bottom: 1px solid rgba(8, 145, 178, 0.1);
}

.data-table tr:hover td {
    background-color: var(--water-blue-light);
}

/* Animations */
@keyframes fade-in {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* Loading States */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #f8f8f8 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease-in-out;
}

.modal.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    padding: 1.5rem;
    width: 100%;
    max-height: calc(100vh - 200px);
    overflow-y: auto;
    transform: translateY(-20px);
    transition: all 0.3s ease;
}

.modal.show .modal-content {
    transform: translateY(0);
}

/* Responsive Adjustments */
@media (max-width: 1024px) {
    #sidebar {
        transform: translateX(-100%);
    }
    
    .main-content {
        margin-left: 0;
    }
}

/* Status Indicators */
.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
}

.status-good {
    background-color: var(--primary-light);
    color: var(--primary);
}

.status-warning {
    background-color: #FEF3C7;
    color: #92400E;
}

.status-error {
    background-color: #FEE2E2;
    color: #991B1B;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

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

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

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

/* Mobile Optimizations */
@media (max-width: 640px) {
    .stat-card {
        margin-bottom: 1rem;
    }
    
    .grid {
        grid-template-columns: 1fr;
    }

    .chart-container {
        height: 200px;
    }

    .capacity-indicator {
        width: 80px;
        height: 80px;
        font-size: 1.25rem;
}

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

/* Bin Status Colors */
.status-full {
    color: #EF4444;
    background-color: #FEE2E2;
}

.status-warning {
    color: #F59E0B;
    background-color: #FEF3C7;
}

.status-good {
    color: #10B981;
    background-color: #D1FAE5;
}

/* Capacity indicator styles */
.capacity-indicator {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.5rem;
    margin: 1rem auto;
    border: 8px solid;
    transition: all 0.3s ease;
}

.capacity-indicator.good {
    border-color: var(--primary);
    background-color: var(--primary-light);
    color: var(--primary);
}

.capacity-indicator.warning {
    border-color: var(--water-blue);
    background-color: var(--water-blue-light);
    color: var(--water-blue);
}

.capacity-indicator.danger {
    background: var(--water-gradient);
    border-color: var(--water-blue);
    color: var(--white);
}

/* Recent Activity */
.activity-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.activity-dot.good {
    background-color: var(--success);
}

.activity-dot.warning {
    background-color: var(--warning);
}

.activity-dot.danger {
    background-color: var(--danger);
}

/* Modal animations */
.modal-enter {
    opacity: 0;
    transform: scale(0.9);
}

.modal-enter-active {
    opacity: 1;
    transform: scale(1);
    transition: opacity 0.3s, transform 0.3s;
}

.modal-exit {
    opacity: 1;
    transform: scale(1);
}

.modal-exit-active {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.3s, transform 0.3s;
}

/* Stats cards hover effect */
.bg-green-50,
.bg-blue-50,
.bg-yellow-50,
.bg-purple-50 {
    transition: transform 0.2s ease-in-out;
}

.bg-green-50:hover,
.bg-blue-50:hover,
.bg-yellow-50:hover,
.bg-purple-50:hover {
    transform: translateY(-2px);
}

/* Navigation hover effects */
.nav-link {
    transition: color 0.2s ease-in-out;
}

.nav-link:hover {
    color: #059669;
}

/* Activity item hover effect */
.flex.items-center {
    transition: background-color 0.2s ease-in-out;
    padding: 0.5rem;
    border-radius: 0.5rem;
}

.flex.items-center:hover {
    background-color: #F9FAFB;
}

/* Utility Classes */
.text-primary {
    color: var(--primary);
}

.bg-primary {
    background: var(--water-gradient);
}

.text-secondary {
    color: var(--water-blue);
}

.bg-secondary {
    background-color: var(--water-blue-light);
}

.sidebar-hidden {
    transform: translateX(-100%) !important;
    transition: transform 0.3s;
}