/* ─── RESET & BASE ─────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --success: #16a34a;
    --danger: #dc2626;
    --warning: #f59e0b;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--gray-800);
    background: var(--gray-50);
    line-height: 1.6;
}

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

/* ─── LAYOUT ───────────────────────────────── */
.container { max-width: 800px; margin: 0 auto; padding: 20px; }
.container-wide { max-width: 1100px; margin: 0 auto; padding: 20px; }

/* ─── ADMIN NAV ────────────────────────────── */
.admin-nav {
    background: var(--gray-900);
    color: white;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
}
.admin-nav .logo { font-weight: 700; font-size: 18px; color: white; }
.admin-nav .nav-links { display: flex; gap: 20px; align-items: center; }
.admin-nav .nav-links a { color: var(--gray-300); font-size: 14px; }
.admin-nav .nav-links a:hover { color: white; text-decoration: none; }
.admin-nav .nav-links a.active { color: white; border-bottom: 2px solid var(--primary); }

/* ─── CARDS ────────────────────────────────── */
.card {
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
    margin-bottom: 20px;
}
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--gray-200);
}
.card-header h2 { font-size: 18px; color: var(--gray-800); }

/* ─── BUTTONS ──────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all 0.15s;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success { background: var(--success); color: white; }
.btn-danger { background: var(--danger); color: white; }
.btn-outline {
    background: white;
    border: 1px solid var(--gray-300);
    color: var(--gray-700);
}
.btn-outline:hover { background: var(--gray-50); }
.btn-sm { padding: 5px 10px; font-size: 13px; }
.btn-group { display: flex; gap: 8px; }

/* ─── FORMS ────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 4px;
    font-size: 14px;
    color: var(--gray-700);
}
.form-control {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 14px;
    transition: border-color 0.15s;
}
.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}
select.form-control { appearance: auto; }
textarea.form-control { min-height: 80px; resize: vertical; }

.form-check {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    font-size: 14px;
}
.form-check input[type="radio"],
.form-check input[type="checkbox"] {
    width: 16px;
    height: 16px;
}

/* ─── SURVEY FORM (respondent-facing) ──────── */
.survey-header {
    text-align: center;
    padding: 40px 20px 20px;
}
.survey-header h1 { font-size: 28px; color: var(--gray-900); margin-bottom: 8px; }
.survey-header p { color: var(--gray-500); font-size: 16px; }

.survey-progress {
    background: var(--gray-200);
    height: 6px;
    border-radius: 3px;
    margin: 20px 0;
    overflow: hidden;
}
.survey-progress-bar {
    background: var(--primary);
    height: 100%;
    border-radius: 3px;
    transition: width 0.3s ease;
}

.question-block {
    margin-bottom: 24px;
    padding: 20px;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.question-block .question-text {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 12px;
    color: var(--gray-800);
}
.question-block .required { color: var(--danger); }

/* ─── LIKERT SCALE ─────────────────────────── */
.likert-scale {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    padding: 8px 0;
}
.likert-option {
    flex: 1;
    text-align: center;
}
.likert-option input { display: none; }
.likert-option label {
    display: block;
    padding: 10px 4px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 13px;
    transition: all 0.15s;
}
.likert-option input:checked + label {
    border-color: var(--primary);
    background: var(--primary-light);
    color: var(--primary-dark);
    font-weight: 600;
}

/* ─── RATING STARS ─────────────────────────── */
.rating { display: flex; gap: 4px; font-size: 28px; }
.rating label { cursor: pointer; color: var(--gray-300); transition: color 0.15s; }
.rating label:hover, .rating label.active { color: var(--warning); }

/* ─── TABLE ────────────────────────────────── */
.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}
.table th, .table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}
.table th {
    font-weight: 600;
    color: var(--gray-600);
    background: var(--gray-50);
}
.table tr:hover { background: var(--gray-50); }

/* ─── BADGES ───────────────────────────────── */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}
.badge-draft { background: var(--gray-200); color: var(--gray-600); }
.badge-active { background: #dcfce7; color: var(--success); }
.badge-closed { background: #fee2e2; color: var(--danger); }

/* ─── ALERTS ───────────────────────────────── */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 14px;
}
.alert-success { background: #dcfce7; color: #166534; border: 1px solid #bbf7d0; }
.alert-error { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.alert-info { background: var(--primary-light); color: #1e40af; border: 1px solid #bfdbfe; }

/* ─── RESPONSIVE ───────────────────────────── */
@media (max-width: 640px) {
    .container { padding: 12px; }
    .card { padding: 16px; }
    .likert-scale { flex-direction: column; }
    .likert-option label { padding: 8px; }
    .admin-nav { flex-direction: column; height: auto; padding: 12px; gap: 8px; }
    .table { font-size: 12px; }
    .btn-group { flex-wrap: wrap; }
}