:root,
[data-theme="corporate"] {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #0f172a;
    --secondary-dark: #020617;
    --accent: #38bdf8;
    --bg: #ffffff;
    --surface: #ffffff;
    --section: #f8fafc;
    --text: #1f2937;
    --muted: #64748b;
    --border: #e2e8f0;
    --nav-text: #ffffff;
    --hero-gradient: linear-gradient( 135deg, #0f172a 0%, #172554 40%, #1d4ed8 100% );
    --navbar-bg: rgba(15,23,42,.95);
    --card-radius: 18px;
    --button-radius: 10px;
    --shadow-sm: 0 2px 8px rgba(15,23,42,.08);
    --shadow-md: 0 10px 28px rgba(15,23,42,.12);
}

[data-theme="modern"] {
    --primary: #7c3aed;
    --primary-dark: #6d28d9;
    --secondary: #111827;
    --secondary-dark: #030712;
    --accent: #8b5cf6;
    --bg: #ffffff;
    --surface: #ffffff;
    --section: #faf5ff;
    --text: #1f2937;
    --muted: #6b7280;
    --border: #ddd6fe;
    --nav-text: #ffffff;
    --hero-gradient: linear-gradient( 135deg, #111827, #7c3aed );
    --navbar-bg: rgba(17,24,39,.95);
    --card-radius: 28px;
    --button-radius: 30px;
    --shadow-sm: 0 2px 8px rgba(124,58,237,.08);
    --shadow-md: 0 15px 40px rgba(124,58,237,.18);
}

[data-theme="dark"] {
    --primary: #22d3ee;
    --primary-dark: #0891b2;
    --secondary: #020617;
    --secondary-dark: #000000;
    --accent: #67e8f9;
    --bg: #0f172a;
    --surface: #1e293b;
    --section: #334155;
    --text: #f8fafc;
    --muted: #cbd5e1;
    --border: #475569;
    --nav-text: #ffffff;
    --hero-gradient: linear-gradient( 135deg, #020617, #0f172a );
    --navbar-bg: rgba(2,6,23,.95);
    --card-radius: 12px;
    --button-radius: 8px;
    --shadow-sm: 0 2px 8px rgba(0,0,0,.25);
    --shadow-md: 0 10px 28px rgba(0,0,0,.40);
}