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

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --accent: #ec4899;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --dark: #1e293b;
    --light: #f8fafc;
    --glass: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --shadow: rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    min-height: 100vh;
    padding: 20px;
    position: relative;
    overflow-x: hidden;
}

/* Animated Background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(120, 119, 198, 0.3), transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(252, 70, 107, 0.3), transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(99, 102, 241, 0.3), transparent 50%);
    animation: gradientShift 15s ease infinite;
    pointer-events: none;
    z-index: -1;
}

@keyframes gradientShift {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}

.dashboard {
    max-width: 1600px;
    margin: 0 auto;
    animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Header - Glassmorphism Style */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 24px 32px;
    border-radius: 20px;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.1),
        0 0 0 1px rgba(255, 255, 255, 0.5) inset;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

header h1 {
    color: var(--dark);
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.refresh-btn {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 12px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
    display: flex;
    align-items: center;
    gap: 8px;
}

.refresh-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}

.refresh-btn:active {
    transform: translateY(0);
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.metric-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 28px;
    border-radius: 20px;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.08),
        0 0 0 1px rgba(255, 255, 255, 0.5) inset;
    border: 1px solid rgba(255, 255, 255, 0.3);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.metric-card:hover {
    transform: translateY(-8px);
    box-shadow: 
        0 16px 48px rgba(0, 0, 0, 0.12),
        0 0 0 1px rgba(255, 255, 255, 0.5) inset;
}

.metric-card:hover::before {
    transform: scaleX(1);
}

.metric-card h3 {
    color: #64748b;
    font-size: 14px;
    margin-bottom: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.metric-value {
    font-size: 48px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    animation: countUp 0.6s ease-out;
}

@keyframes countUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Charts Grid */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(550px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.chart-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 28px;
    border-radius: 20px;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.08),
        0 0 0 1px rgba(255, 255, 255, 0.5) inset;
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.chart-container:hover {
    box-shadow: 
        0 12px 40px rgba(0, 0, 0, 0.12),
        0 0 0 1px rgba(255, 255, 255, 0.5) inset;
}

.chart-container h2 {
    color: var(--dark);
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -0.3px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.chart-container h2::before {
    content: '';
    width: 4px;
    height: 24px;
    background: linear-gradient(180deg, var(--primary), var(--secondary));
    border-radius: 2px;
}

/* Table */
.table-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 28px;
    border-radius: 20px;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.08),
        0 0 0 1px rgba(255, 255, 255, 0.5) inset;
    border: 1px solid rgba(255, 255, 255, 0.3);
    overflow: hidden;
}

.table-container h2 {
    color: var(--dark);
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -0.3px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.table-container h2::before {
    content: '';
    width: 4px;
    height: 24px;
    background: linear-gradient(180deg, var(--primary), var(--secondary));
    border-radius: 2px;
}

table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

thead {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

th {
    padding: 16px 20px;
    text-align: left;
    font-weight: 700;
    color: var(--dark);
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.5px;
    border-bottom: 2px solid #e2e8f0;
}

th:first-child {
    border-top-left-radius: 12px;
}

th:last-child {
    border-top-right-radius: 12px;
}

td {
    padding: 16px 20px;
    color: #475569;
    font-size: 14px;
    border-bottom: 1px solid #f1f5f9;
}

tbody tr {
    transition: all 0.2s ease;
}

tbody tr:hover {
    background: linear-gradient(90deg, rgba(99, 102, 241, 0.05), transparent);
    transform: scale(1.01);
}

tbody tr:last-child td {
    border-bottom: none;
}

/* Scrollbar Styling */
.table-container::-webkit-scrollbar {
    height: 8px;
}

.table-container::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 10px;
}

.table-container::-webkit-scrollbar-thumb {
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 10px;
}

.table-container::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(90deg, var(--primary-dark), var(--secondary));
}

/* Loading Animation */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.loading {
    animation: shimmer 2s infinite;
    background: linear-gradient(
        to right,
        #f6f7f8 0%,
        #edeef1 20%,
        #f6f7f8 40%,
        #f6f7f8 100%
    );
    background-size: 1000px 100%;
}

/* Responsive */
@media (max-width: 1200px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    body {
        padding: 12px;
    }

    header {
        flex-direction: column;
        gap: 16px;
        padding: 20px;
    }

    header h1 {
        font-size: 24px;
    }

    .metrics-grid {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
        gap: 16px;
    }

    .metric-card {
        padding: 20px;
    }

    .metric-value {
        font-size: 36px;
    }

    .chart-container,
    .table-container {
        padding: 20px;
    }

    th, td {
        padding: 12px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .metrics-grid {
        grid-template-columns: 1fr;
    }

    .metric-value {
        font-size: 40px;
    }
}

/* Dark mode support (optional) */
@media (prefers-color-scheme: dark) {
    :root {
        --dark: #f8fafc;
        --light: #1e293b;
    }

    body {
        background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    }

    header,
    .metric-card,
    .chart-container,
    .table-container {
        background: rgba(30, 41, 59, 0.95);
        border-color: rgba(255, 255, 255, 0.1);
    }

    header h1,
    .chart-container h2,
    .table-container h2 {
        color: var(--dark);
    }

    .metric-card h3 {
        color: #94a3b8;
    }

    thead {
        background: rgba(15, 23, 42, 0.5);
    }

    th {
        color: var(--dark);
        border-bottom-color: #334155;
    }

    td {
        color: #cbd5e1;
        border-bottom-color: #334155;
    }

    tbody tr:hover {
        background: rgba(99, 102, 241, 0.1);
    }
}

/* Custom Animations */
@keyframes slideInFromBottom {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.metric-card:nth-child(1) { animation: slideInFromBottom 0.4s ease-out 0.1s both; }
.metric-card:nth-child(2) { animation: slideInFromBottom 0.4s ease-out 0.2s both; }
.metric-card:nth-child(3) { animation: slideInFromBottom 0.4s ease-out 0.3s both; }
.metric-card:nth-child(4) { animation: slideInFromBottom 0.4s ease-out 0.4s both; }