/* Material Design 3 - Blue White Gray Theme */
:root {
    --md-sys-color-primary: #1976D2;
    --md-sys-color-primary-container: #E3F2FD;
    --md-sys-color-on-primary: #FFFFFF;
    --md-sys-color-secondary: #546E7A;
    --md-sys-color-secondary-container: #ECEFF1;
    --md-sys-color-surface: #FFFFFF;
    --md-sys-color-surface-variant: #F5F5F5;
    --md-sys-color-background: #FAFAFA;
    --md-sys-color-on-surface: #1C1B1F;
    --md-sys-color-outline: #BDBDBD;
    --md-sys-color-shadow: rgba(0, 0, 0, 0.1);
}

/* General Body Styles */
body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    margin: 0;
    padding: 20px;
    background: var(--md-sys-color-background);
    color: var(--md-sys-color-on-surface);
    line-height: 1.6;
    min-height: 100vh;
}

/* Main Container */
.container {
    max-width: 95%;
    margin: 20px auto;
    background-color: var(--md-sys-color-surface);
    padding: 40px;
    border-radius: 28px;
    box-shadow: 0 4px 16px var(--md-sys-color-shadow);
    animation: slideIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
/* Dashboard Layout */
.dashboard-layout {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.main-content {
    width: 100%;
    min-width: 0;
}

.sidebar-content {
    width: 100%;
    min-width: 0;
}

/* Typography - Material Design 3 */
h1, h2 {
    color: var(--md-sys-color-on-surface);
    padding-bottom: 10px;
    margin-top: 0;
}

h1 {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 30px;
    color: var(--md-sys-color-primary);
    font-weight: 500;
    letter-spacing: 0;
}

h2 {
    font-size: 1.5em;
    margin-top: 40px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--md-sys-color-primary);
    padding-bottom: 12px;
    color: var(--md-sys-color-on-surface);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Info Banners - MD3 Style */
.info-item {
    background: var(--md-sys-color-primary-container);
    padding: 16px 24px;
    border-radius: 16px;
    margin-bottom: 24px;
    font-size: 0.95em;
    border-left: 4px solid var(--md-sys-color-primary);
    box-shadow: 0 1px 3px var(--md-sys-color-shadow);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.info-item:hover {
    box-shadow: 0 2px 6px var(--md-sys-color-shadow);
}

.info-item strong {
    color: var(--md-sys-color-primary);
    font-weight: 500;
}

/* Tabs - MD3 Style */
.tabs {
    border-bottom: 1px solid var(--md-sys-color-outline);
    display: flex;
    margin-bottom: 32px;
    flex-wrap: wrap;
    gap: 8px;
}

.tabs button {
    background: none;
    border: none;
    outline: none;
    padding: 16px 24px;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 14px;
    color: var(--md-sys-color-on-surface);
    border-radius: 16px 16px 0 0;
    margin-bottom: -1px;
    font-weight: 500;
    position: relative;
}

.tabs button::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--md-sys-color-primary);
    transform: scaleX(0);
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.tabs button:hover {
    background: var(--md-sys-color-surface-variant);
}

.tabs button.active {
    color: var(--md-sys-color-primary);
    font-weight: 600;
}

.tabs button.active::after {
    transform: scaleX(1);
}

.tab-content {
    display: none;
    padding-top: 10px;
}

.tab-content.active {
    display: block;
}

/* Summary Cards - MD3 Style */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin: 32px 0;
}

.card {
    background: var(--md-sys-color-surface);
    padding: 24px;
    border-radius: 16px;
    text-align: center;
    border: 1px solid var(--md-sys-color-outline);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 1px 3px var(--md-sys-color-shadow);
}

.card:hover {
    box-shadow: 0 4px 12px var(--md-sys-color-shadow);
    transform: translateY(-4px);
    border-color: var(--md-sys-color-primary);
}

.card h3 {
    margin: 0 0 16px;
    font-size: 0.875rem;
    color: var(--md-sys-color-secondary);
    font-weight: 500;
    letter-spacing: 0.1px;
}

.card p {
    margin: 0;
    font-size: 2rem;
    font-weight: 600;
    color: var(--md-sys-color-primary);
    line-height: 1.2;
}

/* Tables - MD3 Style */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 24px;
    font-size: 0.875rem;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 1px 3px var(--md-sys-color-shadow);
    border: 1px solid var(--md-sys-color-outline);
}

th, td {
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid var(--md-sys-color-outline);
}

th {
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    font-weight: 500;
    font-size: 0.875rem;
    letter-spacing: 0.1px;
}

tbody tr {
    transition: background-color 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

tr:nth-child(even) {
    background-color: var(--md-sys-color-surface-variant);
}

tbody tr:hover {
    background-color: var(--md-sys-color-primary-container);
}

/* Chart Container - MD3 Style */
.chart-container {
    position: relative;
    width: 100%;
    padding: 24px;
    background: var(--md-sys-color-surface);
    border-radius: 16px;
    box-shadow: 0 1px 3px var(--md-sys-color-shadow);
    border: 1px solid var(--md-sys-color-outline);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.chart-container:hover {
    box-shadow: 0 4px 12px var(--md-sys-color-shadow);
}

.chart-container canvas {
    max-width: 100%;
    height: auto !important;
}

/* Chart Wrapper for dynamic charts */
.chart-wrapper {
    position: relative;
    width: 100%;
    height: 350px;
    padding: 24px;
    background: var(--md-sys-color-surface);
    border-radius: 16px;
    box-shadow: 0 1px 3px var(--md-sys-color-shadow);
    border: 1px solid var(--md-sys-color-outline);
}

.chart-wrapper canvas {
    max-height: 300px !important;
}

.chart-grid {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-top: 24px;
}

/* Time Range Buttons - MD3 Filled Button */
.time-range-btn {
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    border: none;
    padding: 10px 24px;
    margin: 0 8px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 1px 3px var(--md-sys-color-shadow);
}

.time-range-btn:hover {
    box-shadow: 0 2px 6px var(--md-sys-color-shadow);
}

.time-range-btn.active {
    background: var(--md-sys-color-secondary);
    box-shadow: 0 2px 6px var(--md-sys-color-shadow);
}

/* Statistics Badge - MD3 */
.stat-badge {
    display: inline-block;
    padding: 4px 12px;
    background: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-primary);
    border-radius: 16px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-left: 8px;
}

/* Loading Animation */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

/* Scrollbar Styling - MD3 */
::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

::-webkit-scrollbar-track {
    background: var(--md-sys-color-surface-variant);
    border-radius: 8px;
}

::-webkit-scrollbar-thumb {
    background: var(--md-sys-color-primary);
    border-radius: 8px;
    border: 2px solid var(--md-sys-color-surface-variant);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--md-sys-color-secondary);
}

/* Footer - MD3 */
.footer {
    text-align: center;
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid var(--md-sys-color-outline);
    font-size: 0.875rem;
    color: var(--md-sys-color-secondary);
}

.footer p {
    margin: 8px 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 20px;
        border-radius: 16px;
    }
    
    h1 {
        font-size: 2em;
    }
    
    h2 {
        font-size: 1.25em;
    }
    
    .summary-cards {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 12px;
    }
    
    .card {
        padding: 16px;
    }
    
    .card h3 {
        font-size: 0.8rem;
        margin-bottom: 12px;
    }
    
    .card p {
        font-size: 1.5rem;
    }
    
    table {
        font-size: 0.8rem;
    }
    
    th, td {
        padding: 12px 8px;
    }
    
    .tabs button {
        padding: 12px 16px;
        font-size: 13px;
    }
    
    .time-range-btn {
        padding: 8px 16px;
        margin: 4px;
        font-size: 13px;
    }
    
    .chart-wrapper,
    .chart-container {
        height: 250px;
    }
}

@media (max-width: 480px) {
    .summary-cards {
        grid-template-columns: 1fr 1fr;
    }
    
    .card p {
        font-size: 1.25rem;
    }
}