/* DocDriverLic — Shared Styles (app.css) */
:root {
    --primary: #2a6f97;
    --primary-dark: #1a4f77;
    --primary-light: #e8f4fc;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
}

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

body {
    font-family: var(--font);
    color: var(--gray-900);
    background: var(--gray-100);
    line-height: 1.6;
    min-height: 100vh;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ─── Buttons ─── */
.btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 10px 20px; border: none; border-radius: var(--radius);
    font-size: 14px; font-weight: 600; cursor: pointer;
    transition: all 0.15s ease; text-decoration: none;
}
.btn:hover { opacity: 0.9; text-decoration: none; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-block { display: flex; width: 100%; justify-content: center; }
.btn-sm { padding: 6px 12px; font-size: 12px; }

/* ─── Forms ─── */
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block; margin-bottom: 4px;
    font-size: 13px; font-weight: 600; color: var(--gray-700);
}
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 10px 12px;
    border: 1px solid var(--gray-300); border-radius: var(--radius);
    font-size: 14px; font-family: var(--font);
    transition: border-color 0.15s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(42,111,151,0.15);
}
.form-group textarea { min-height: 80px; resize: vertical; }

/* ─── Error ─── */
.error-msg { color: var(--danger); font-size: 13px; margin-bottom: 12px; text-align: center; }
.success-msg { color: var(--success); font-size: 13px; margin-bottom: 12px; text-align: center; }

/* ─── Card ─── */
.card {
    background: #fff; border-radius: var(--radius); box-shadow: var(--shadow);
    padding: 24px; margin-bottom: 16px;
}
.card h2 { font-size: 16px; margin-bottom: 16px; color: var(--gray-800); }

/* ─── Table ─── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--gray-200); }
th { font-weight: 600; color: var(--gray-600); font-size: 12px; text-transform: uppercase; }
tr:hover { background: var(--gray-100); }

/* ─── Badge ─── */
.badge {
    display: inline-block; padding: 2px 8px; border-radius: 12px;
    font-size: 11px; font-weight: 600;
}
.badge-success { background: #d4edda; color: #155724; }
.badge-danger { background: #f8d7da; color: #721c24; }
.badge-warning { background: #fff3cd; color: #856404; }

/* ─── Login Page ─── */
.login-page {
    display: flex; align-items: center; justify-content: center;
    min-height: 100vh; padding: 20px;
    background: linear-gradient(135deg, #e8f4fc 0%, #d4e8f0 100%);
}
.login-card {
    background: #fff; border-radius: 12px; box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    padding: 40px; width: 100%; max-width: 400px;
}
.login-logo { font-size: 24px; font-weight: 700; text-align: center; margin-bottom: 8px; color: var(--primary); }
.login-card h1 { font-size: 20px; text-align: center; margin-bottom: 4px; }
.login-subtitle { text-align: center; color: var(--gray-600); font-size: 13px; margin-bottom: 24px; }
.login-footer { text-align: center; margin-top: 16px; font-size: 13px; color: var(--gray-600); }

/* ─── Version Badge ─── */
.version-badge { font-size: 11px; color: var(--gray-500); }

/* ─── Question Cards ─── */
.question-text { font-size: 16px; font-weight: 600; margin-bottom: 16px; line-height: 1.5; }
.question-image { max-width: 100%; max-height: 300px; border-radius: var(--radius); margin-bottom: 16px; }
.answer-option {
    display: block; width: 100%; padding: 14px 16px; margin-bottom: 8px;
    border: 2px solid var(--gray-200); border-radius: var(--radius);
    background: #fff; cursor: pointer; text-align: left; font-size: 14px;
    transition: all 0.15s;
}
.answer-option:hover { border-color: var(--primary); background: var(--primary-light); }
.answer-option.selected { border-color: var(--primary); background: var(--primary-light); }
.answer-option.correct { border-color: var(--success); background: #d4edda; }
.answer-option.incorrect { border-color: var(--danger); background: #f8d7da; }

/* ─── Progress ─── */
.progress-bar {
    height: 6px; background: var(--gray-200); border-radius: 3px; overflow: hidden; margin-bottom: 16px;
}
.progress-fill {
    height: 100%; background: var(--primary); border-radius: 3px; transition: width 0.3s;
}

/* ─── Modal ─── */
.modal-overlay {
    display: none; position: fixed; inset: 0; z-index: 1000;
    background: rgba(0,0,0,0.5); align-items: center; justify-content: center;
}
.modal-overlay[style*="display: flex"],
.modal-overlay[style*="display:flex"] {
    display: flex !important;
}
.modal-card {
    background: #fff; border-radius: 12px; box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    padding: 24px; width: 90%; max-width: 500px; max-height: 85vh; overflow-y: auto;
    position: relative;
}
.modal-card h2 { font-size: 18px; margin-bottom: 16px; }
.modal-card h3 { font-size: 14px; margin-bottom: 8px; color: var(--gray-600); }