/* ============================================
   공통 스타일 - FEARA 디자인 가이드
   ============================================ */

/* --- Reset & Base --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --primary: #C62828;
    --primary-dark: #8E0000;
    --primary-light: #EF5350;
    --bg-light: #F7F7F7;
    --white: #FFFFFF;
    --text-main: #222222;
    --text-sub: #666666;
    --text-muted: #999999;
    --border: #DDDDDD;
    --border-light: #EEEEEE;
    --success: #2E7D32;
    --success-bg: #E8F5E9;
    --danger: #C62828;
    --danger-bg: #FFEBEE;
    --warning: #F57F17;
    --warning-bg: #FFF8E1;
    --info: #1565C0;
    --info-bg: #E3F2FD;
    --radius: 8px;
    --radius-sm: 4px;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-lg: 0 4px 16px rgba(0,0,0,0.12);
    --transition: 0.2s ease;
    --font: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --max-width: 1200px;
    --narrow-width: 640px;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font);
    color: var(--text-main);
    background: var(--bg-light);
    line-height: 1.6;
    min-height: 100vh;
}

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

img {
    max-width: 100%;
    height: auto;
}

/* --- Typography --- */
h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-main);
}

.page-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.page-desc {
    color: var(--text-sub);
    margin-bottom: 1.5rem;
}

.text-muted { color: var(--text-muted); }
.text-sub { color: var(--text-sub); }
.text-sm { font-size: 0.875rem; }
.text-warning { color: var(--warning); }

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    border: 2px solid transparent;
    border-radius: var(--radius);
    font-family: var(--font);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}
.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    color: var(--white);
}

.btn-danger {
    background: var(--danger);
    color: var(--white);
    border-color: var(--danger);
}
.btn-danger:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    color: var(--white);
}

.btn-outline {
    background: var(--white);
    color: var(--text-main);
    border-color: var(--border);
}
.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-full { width: 100%; }
.btn-large { padding: 0.875rem 2rem; font-size: 1.0625rem; }
.btn-sm { padding: 0.375rem 0.75rem; font-size: 0.8125rem; }

/* --- Forms --- */
.form-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.375rem;
    color: var(--text-main);
}

.form-input, .form-textarea, .form-select {
    width: 100%;
    padding: 0.625rem 0.875rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font);
    font-size: 0.9375rem;
    color: var(--text-main);
    background: var(--white);
    transition: border-color var(--transition);
}
.form-input:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(198,40,40,0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

.form-file {
    font-size: 0.875rem;
    margin-top: 0.25rem;
}
.form-file-sm {
    font-size: 0.8125rem;
    max-width: 160px;
}

.form-row {
    display: flex;
    gap: 1rem;
}
.form-row .form-group { flex: 1; }
.flex-1 { flex: 1; }

.form-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
    margin-top: 1.5rem;
}

.required { color: var(--primary); }

.input-sm { max-width: 140px; }

.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }

/* --- Checkbox --- */
.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.9375rem;
}
.checkbox-label input[type="checkbox"] {
    margin-top: 0.25rem;
    accent-color: var(--primary);
}

/* --- Flash Messages --- */
.flash {
    padding: 0.875rem 1.25rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1.5rem;
    font-size: 0.9375rem;
}
.flash-error {
    background: var(--danger-bg);
    color: var(--danger);
    border-left: 4px solid var(--danger);
}
.flash-success {
    background: var(--success-bg);
    color: var(--success);
    border-left: 4px solid var(--success);
}
.flash-warning {
    background: var(--warning-bg);
    color: var(--warning);
    border-left: 4px solid var(--warning);
}

.error-list {
    list-style: disc inside;
    margin: 0;
    padding: 0;
}

/* --- Badge --- */
.badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 99px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}
.badge-sm { font-size: 0.6875rem; padding: 0.15rem 0.5rem; }
.badge-live { background: var(--success-bg); color: var(--success); }
.badge-draft { background: var(--warning-bg); color: var(--warning); }
.badge-reviewed { background: var(--info-bg); color: var(--info); }
.badge-empty { background: var(--bg-light); color: var(--text-muted); }
.badge-mcq { background: #E3F2FD; color: #1565C0; }
.badge-sub { background: #F3E5F5; color: #7B1FA2; }

/* --- Tables --- */
.data-table {
    width: 100%;
    border-collapse: collapse;
}
.data-table th, .data-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.9rem;
}
.data-table th {
    background: var(--bg-light);
    font-weight: 600;
    font-size: 0.8125rem;
    color: var(--text-sub);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.data-table tbody tr:hover {
    background: rgba(198,40,40,0.02);
}

.actions-cell {
    display: flex;
    gap: 0.375rem;
    flex-wrap: wrap;
}

.info-table {
    width: 100%;
}
.info-table th, .info-table td {
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.9rem;
}
.info-table th {
    width: 120px;
    color: var(--text-sub);
    font-weight: 500;
}

/* --- Section Card --- */
.section-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 1.5rem 2rem;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
}

.section-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.page-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 0.75rem;
}

/* --- Privacy Box --- */
.privacy-box {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1.25rem;
}
.privacy-box h4 {
    font-size: 0.9375rem;
    margin-bottom: 0.75rem;
}
.privacy-text {
    max-height: 120px;
    overflow-y: auto;
    padding: 0.75rem;
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    color: var(--text-sub);
    margin-bottom: 0.75rem;
}

/* --- Pagination --- */
.pagination {
    display: flex;
    align-items: center;
    gap: 1rem;
    justify-content: center;
    margin-top: 1.5rem;
}

.pagination-info {
    color: var(--text-sub);
    font-size: 0.875rem;
}

/* --- Checklist --- */
.checklist {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin: 1.5rem 0;
}
.checklist-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition);
    font-size: 0.9375rem;
}
.checklist-item:hover {
    background: var(--bg-light);
}
.checklist-item input[type="checkbox"] {
    accent-color: var(--primary);
    width: 18px;
    height: 18px;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    .page-header-row {
        flex-direction: column;
        align-items: flex-start;
    }
    .data-table {
        display: block;
        overflow-x: auto;
    }
    .section-card {
        padding: 1rem 1.25rem;
    }
}