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

:root {
    --primary-color: #f97316;
    --primary-hover: #ea580c;
    --primary-light: #fb923c;
    --secondary-color: #f59e0b;
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #475569;
    --card-bg: #1e293b;
    --gradient-primary: linear-gradient(135deg, #f97316, #fb923c);
    --gradient-secondary: linear-gradient(135deg, #ea580c, #f97316);
    --success-color: #22c55e;
    --error-color: #ef4444;
    --shadow-card: 0 4px 20px color-mix(in srgb, var(--text-primary) 8%, transparent);
    --shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 10px 25px color-mix(in srgb, var(--primary-color) 30%, transparent);
}

[data-theme="light"] {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary-color: #7c3aed;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --card-bg: #ffffff;
    --gradient-primary: linear-gradient(135deg, #2563eb, #3b82f6);
    --gradient-secondary: linear-gradient(135deg, #1d4ed8, #2563eb);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

body {
    background:
        radial-gradient(circle at 15% 10%, color-mix(in srgb, var(--primary-color) 18%, transparent), transparent 26rem),
        radial-gradient(circle at 85% 0%, color-mix(in srgb, var(--secondary-color) 12%, transparent), transparent 22rem),
        var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    margin: 0 auto;
    max-width: 1200px;
    padding: 2rem;
}

header {
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    background: color-mix(in srgb, var(--card-bg) 88%, transparent);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--shadow-card);
    margin-bottom: 2rem;
    padding: 2rem;
}

h1,
h2,
h3 {
    font-family: 'JetBrains Mono', 'Fira Code', 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
}

h1 {
    color: var(--text-primary);
    font-size: clamp(2.5rem, 5vw, 3.75rem);
    font-weight: 700;
    line-height: 1.1;
}

h2 {
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 600;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-top: 0.75rem;
}

.dashboard-description {
    color: var(--text-muted);
    font-size: 1rem;
    max-width: 880px;
    margin-top: 1rem;
}

.refresh-btn {
    background: var(--gradient-primary);
    border: 0;
    border-radius: 8px;
    color: white;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    padding: 0.875rem 2rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.refresh-btn:hover {
    background: var(--gradient-secondary);
    box-shadow: var(--shadow-glow);
    transform: translateY(-3px) scale(1.02);
}

.update-card,
.loading,
.error {
    animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 12px;
    margin-bottom: 1.5rem;
    padding: 1rem;
    text-align: center;
}

.update-card,
.loading {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-card);
    color: var(--text-muted);
}

.update-card {
    align-items: center;
    display: flex;
    gap: 1rem;
    justify-content: space-between;
    text-align: left;
}

.last-update {
    color: var(--text-muted);
    font-weight: 600;
}

.loading {
    padding: 2.5rem;
}

.spinner {
    animation: spin 1s linear infinite;
    border: 4px solid var(--bg-tertiary);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    height: 50px;
    margin: 0 auto 1.25rem;
    width: 50px;
}

.error {
    background: color-mix(in srgb, var(--error-color) 10%, transparent);
    border: 1px solid color-mix(in srgb, var(--error-color) 30%, transparent);
    color: var(--text-primary);
}

.kpi-grid,
.stats-grid,
.dashboard-grid {
    display: grid;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.kpi-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.dashboard-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(320px, 0.8fr);
}

.kpi-card,
.stat-card,
.chart-container,
.table-container {
    animation: staggerIn 0.6s cubic-bezier(0.4, 0, 0.2, 1) both;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--shadow-card);
}

.kpi-card,
.stat-card,
.chart-container {
    padding: 2rem;
}

.kpi-card,
.stat-card {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.kpi-card:hover,
.stat-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-8px);
}

.kpi-card span,
.kpi-card small,
.stat-card h3,
.stat-card .symbol,
.chart-header p {
    color: var(--text-muted);
}

.kpi-card span,
.stat-card h3 {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}

.kpi-card strong,
.stat-card .value {
    color: var(--primary-color);
    display: block;
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 0.5rem;
}

.kpi-card small {
    display: block;
    font-size: 0.875rem;
}

.stat-card .symbol {
    font-size: 1rem;
}

.stat-card .change {
    font-weight: 700;
    margin-top: 0.75rem;
}

.chart-container {
    margin-bottom: 2rem;
}

.chart-container h2 {
    margin-bottom: 1.25rem;
}

.chart-container-large {
    padding-bottom: 1.5rem;
}

.chart-header {
    align-items: flex-start;
    display: flex;
    gap: 1.5rem;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.chart-header h2 {
    margin-bottom: 0.25rem;
}

.chart-toolbar {
    align-items: flex-end;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.segmented-control {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    display: flex;
    gap: 0.25rem;
    padding: 0.25rem;
}

.segmented-control button {
    background: transparent;
    border: 0;
    border-radius: 6px;
    color: var(--text-muted);
    cursor: pointer;
    font-weight: 600;
    padding: 0.5rem 0.75rem;
    transition: all 0.2s ease;
}

.segmented-control button.active,
.segmented-control button:hover {
    background: var(--primary-color);
    box-shadow: 0 2px 4px color-mix(in srgb, var(--primary-color) 30%, transparent);
    color: white;
}

.history-chart-frame {
    height: 380px;
}

.doughnut-frame {
    height: 330px;
}

.table-container {
    overflow-x: auto;
    padding: 2rem;
}

.table-container h2 {
    margin-bottom: 1.25rem;
}

table {
    border-collapse: collapse;
    width: 100%;
}

thead {
    background: color-mix(in srgb, var(--primary-color) 12%, transparent);
    color: var(--primary-color);
}

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

th {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
}

td {
    color: var(--text-secondary);
}

tbody tr {
    transition: background 0.2s ease;
}

tbody tr:hover {
    background: color-mix(in srgb, var(--primary-color) 8%, transparent);
}

.positive {
    color: var(--success-color) !important;
}

.negative {
    color: var(--error-color) !important;
}

footer {
    color: var(--text-muted);
    padding: 2rem;
    text-align: center;
}

footer a {
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
}

footer a:hover {
    color: var(--primary-light);
    text-shadow: 0 0 15px color-mix(in srgb, var(--primary-color) 40%, transparent);
}

.kpi-card:nth-child(1),
.stat-card:nth-child(1),
.chart-container:nth-child(1) {
    animation-delay: 0.1s;
}

.kpi-card:nth-child(2),
.stat-card:nth-child(2),
.chart-container:nth-child(2) {
    animation-delay: 0.2s;
}

.kpi-card:nth-child(3),
.stat-card:nth-child(3),
.chart-container:nth-child(3) {
    animation-delay: 0.3s;
}

.stat-card:nth-child(4) {
    animation-delay: 0.4s;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes staggerIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

@media (max-width: 900px) {
    .container {
        padding: 1rem;
    }

    .chart-header,
    .chart-toolbar {
        align-items: stretch;
        flex-direction: column;
    }

    .dashboard-grid,
    .kpi-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .segmented-control {
        overflow-x: auto;
    }

    .segmented-control button {
        white-space: nowrap;
    }

    .history-chart-frame,
    .doughnut-frame {
        height: 300px;
    }

    .update-card {
        align-items: stretch;
        flex-direction: column;
    }
}

@media (max-width: 640px) {
    h1 {
        font-size: 2.25rem;
    }

    .kpi-card,
    .stat-card,
    .chart-container,
    .table-container,
    header {
        padding: 1.5rem;
    }
}