:root {
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --bg-surface: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --border: #cbd5e1;
    --primary: #0f766e;
    --primary-light: #14b8a6;
    --primary-dark: #0d5d56;
    --sidebar-bg: #1e293b;
    --sidebar-text: #f8fafc;
}

[data-theme="dark"] {
    --bg-main: #000000;
    --bg-card: #0a0a0a;
    --bg-surface: #141414;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border: #262626;
    --sidebar-bg: #000000;
    --sidebar-text: #f8fafc;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}
.card { background-color: var(--bg-card); border: 1px solid var(--border); transition: background-color 0.3s ease; }
input, select, textarea { background-color: var(--bg-surface); color: var(--text-primary); border-color: var(--border); }