* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family:
        system-ui,
        "Inter",
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        sans-serif;
    transition:
        background-color 0.25s ease,
        border-color 0.2s ease,
        color 0.2s ease;
}

:root {
    --bg-body: #f8fafc;
    --bg-surface: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #334155;
    --border-light: #e2e8f0;
    --accent: #3b82f6;
    --accent-soft: #dbeafe;
    --card-shadow:
        0 8px 20px rgba(0, 0, 0, 0.02), 0 2px 6px rgba(0, 0, 0, 0.03);
    --moon-icon: #64748b;
    --sun-icon: #f59e0b;
    --header-bg: rgba(255, 255, 255, 0.7);
}

body.dark {
    --bg-body: #0b1120;
    --bg-surface: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --border-light: #334155;
    --accent: #60a5fa;
    --accent-soft: #1e3a5f;
    --card-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
    --moon-icon: #94a3b8;
    --sun-icon: #fcd34d;
    --header-bg: rgba(15, 23, 42, 0.7);
}

body {
    background-color: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1.5rem;
    width: 100%;
    flex: 1;
}