@font-face {
    font-family: 'Segoe UI';
    src: url('fonts/SegoeUI.woff2') format('woff2');
    font-weight: 200;
    font-style: normal;
}

@font-face {
    font-family: 'Segoe UI';
    src: url('fonts/SegeoUI-Light.woff2') format('woff2');
    font-weight: 600;
    font-style: normal;
}

:root {
    --bg-dark: #0f172a;
    --bg-card: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-hot: #f43f5e;
    --accent-cool: #10b981;
    --accent-primary: #3b82f6;
    --font-heading: 'Segoe UI', sans-serif;
    --font-body: 'Segoe UI', sans-serif;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    background-image:
        radial-gradient(circle at 10% 20%, rgba(16, 185, 129, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(59, 130, 246, 0.1) 0%, transparent 40%);
    min-height: 100vh;
}

a {
    color: var(--accent-cool);
    /* Emerald Green */
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--accent-primary);
    /* Blue */
    text-decoration: none;
}
strong{font-weight: 100;}
.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Typography */
h1,
h2,
h3 {
    font-family: var(--font-heading);
    font-weight: 700;
}

.gradient-text {
    background: linear-gradient(135deg, #6ee7b7 0%, #3b82f6 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* Glassmorphism Cards */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.glass-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 4rem 0;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.stat-pill {
    background: rgba(255, 255, 255, 0.05);
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    border: 1px solid var(--glass-border);
    font-size: 0.9rem;
}

.stat-pill .label {
    color: var(--text-secondary);
    margin-right: 0.5rem;
}

/* Controls */
.controls .btn {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    font-family: var(--font-body);
}

.controls .btn.active,
.controls .btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.3);
}

.mode-toggle {
    display: flex;
    background: rgba(0, 0, 0, 0.2);
    padding: 4px;
    border-radius: 8px;
    gap: 4px;
}

.mode-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    font-family: var(--font-body);
    font-size: 0.9rem;
}

.mode-btn.active {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

/* Insights Grid */
.insights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.highlight-card {
    border: 1px solid rgba(244, 63, 94, 0.3);
    background: rgba(244, 63, 94, 0.05);
}

.highlight-card-blue {
    border: 1px solid rgba(59, 130, 246, 0.3);
    background: rgba(59, 130, 246, 0.05);
}

.big-number {
    font-size: 3rem;
    font-weight: 800;
    margin: 1rem 0;
    background: linear-gradient(135deg, #fff 0%, #cbd5e1 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.comparison-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 1rem;
}

.comp-item {
    display: flex;
    flex-direction: column;
}

.comp-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.comp-val {
    font-size: 1.2rem;
    font-weight: 600;
}

.comp-val.hot {
    color: var(--accent-hot);
}

.comp-val.cool {
    color: var(--accent-cool);
}

.vs {
    font-size: 1.3rem;
    color: var(--text-secondary);
    opacity: 0.5;
}

/* Story Grid */
.story-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.detail-content {
    margin-top: 1rem;
}

.date-display {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.temp-comparison {
    display: flex;
    gap: 1rem;
}

.temp-box {
    flex: 1;
    padding: 1rem;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.temp-box.asphalt {
    border-bottom: 3px solid var(--accent-hot);
}

.temp-box.tree {
    border-bottom: 3px solid var(--accent-cool);
}

.temp-box .label {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.temp-box .value {
    font-size: 1.5rem;
    font-weight: 700;
}

/* Chart Section */
.chart-section {
    margin-bottom: 2rem;
}

.chart-container {
    position: relative;
    height: 500px;
    width: 100%;
    margin-top: 1rem;
}

/* Footer */
footer {
    text-align: center;
    margin-top: 4rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    padding-bottom: 2rem;
}

/* Responsive */
@media (max-width: 768px) {
    .gradient-text {
        font-size: 2.5rem;
    }

    .hero-stats {
        flex-direction: column;
        align-items: center;
    }

    .section-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }

    .app-container {
        padding: 1rem;
    }
}