:root {
            --bg-color: #1a1a1a;
            --card-bg: #262626;
            --modal-bg: #d9d9d9;
            --modal-text: #111827;
            --accent-green: #22c55e;
            --accent-green-hover: #16a34a;
            --input-cyan: #06b6d4;
        }

        body {
            background-color: var(--bg-color);
            color: #ffffff;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            min-height: 100vh;
        }

        /* Role Selection Cards */
        .role-card {
            background-color: var(--card-bg);
            border: 2px solid transparent;
            border-radius: 20px;
            overflow: hidden;
            cursor: pointer;
            transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
            text-decoration: none;
            color: #ffffff;
            display: block;
        }

        .role-card:hover {
            transform: translateY(-6px);
            border-color: var(--accent-green);
            box-shadow: 0 10px 30px rgba(34, 197, 94, 0.2);
            color: #ffffff;
        }

        .role-card-header {
            background-color: #e5e7eb;
            color: #111827;
            padding: 1rem;
            font-weight: 600;
            font-size: 1.1rem;
        }

        .role-card-img-placeholder {
            aspect-ratio: 1;
            background-color: #0d0d0d;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #6b7280;
        }

        .role-card-img-placeholder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* Pop-up Modals */
        .modal-content-custom {
            background-color: var(--modal-bg);
            color: var(--modal-text);
            border-radius: 24px;
            border: none;
            padding: 2rem 1.5rem;
        }

        .form-control-cyan {
            background-color: var(--input-cyan);
            border: none;
            border-radius: 12px;
            padding: 0.75rem 1rem;
            color: #ffffff;
            font-weight: 500;
        }

        .form-control-cyan::placeholder {
            color: rgba(255, 255, 255, 0.7);
        }

        .form-control-cyan:focus {
            background-color: #0891b2;
            color: #ffffff;
            box-shadow: 0 0 0 0.25rem rgba(6, 182, 212, 0.4);
        }

        .btn-green-action {
            background-color: var(--accent-green);
            color: #ffffff;
            font-weight: 700;
            font-size: 1.25rem;
            border: none;
            border-radius: 50rem;
            padding: 0.75rem 2rem;
            width: 100%;
            transition: background-color 0.2s ease;
        }

        .btn-green-action:hover {
            background-color: var(--accent-green-hover);
            color: #ffffff;
        }

        .role-selection-grid {
            max-width: 900px;
        }