/* assets/css/style.css - Design System for POLL Application */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Noto+Sans+KR:wght@300;400;500;600;700&display=swap');

:root {
    --bg-color: #f8fafc;
    --bg-gradient: linear-gradient(135deg, #e0e7ff 0%, #f1f5f9 50%, #fae8ff 100%);
    --card-bg: rgba(255, 255, 255, 0.85);
    --card-border: rgba(226, 232, 240, 0.8);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --accent-color: #6366f1;
    --accent-hover: #4f46e5;
    --accent-light: #e0e7ff;
    --accent-glow: rgba(99, 102, 241, 0.25);
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --input-bg: #ffffff;
    --input-border: #cbd5e1;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 20px 30px -10px rgba(0, 0, 0, 0.12);
    --glass-blur: blur(12px);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    --bg-color: #0b0f19;
    --bg-gradient: linear-gradient(135deg, #0f172a 0%, #0b0f19 50%, #1e1b4b 100%);
    --card-bg: rgba(17, 24, 39, 0.82);
    --card-border: rgba(31, 41, 55, 0.8);
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    --accent-color: #818cf8;
    --accent-hover: #6366f1;
    --accent-light: rgba(99, 102, 241, 0.2);
    --accent-glow: rgba(129, 140, 248, 0.35);
    --input-bg: #1f2937;
    --input-border: #374151;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 30px -10px rgba(0, 0, 0, 0.6);
}

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

body {
    font-family: 'Outfit', 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-color);
    background-image: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background var(--transition-smooth), color var(--transition-smooth);
}

/* Header & Theme Toggle */
.app-header {
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: var(--glass-blur);
    background: var(--card-bg);
    border-bottom: 1px solid var(--card-border);
    padding: 0.85rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
    text-decoration: none;
}

.brand i {
    color: var(--accent-color);
    width: 24px;
    height: 24px;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.theme-toggle-btn, .nav-btn {
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    color: var(--text-primary);
    padding: 0.5rem 0.85rem;
    border-radius: var(--radius-full);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.theme-toggle-btn:hover, .nav-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Container */
.container {
    width: 100%;
    max-width: 900px;
    margin: 2rem auto;
    padding: 0 1.25rem;
    flex: 1;
}

.container-wide {
    max-width: 1280px;
}

/* Survey Card & Header */
.survey-card {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
    animation: fadeIn 0.5s ease-out;
}

.survey-title-block {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px dashed var(--card-border);
}

.survey-title-block h1 {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.survey-title-block p {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Progress bar */
.progress-container {
    margin-bottom: 2rem;
}

.progress-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.progress-bar-bg {
    width: 100%;
    height: 8px;
    background: var(--accent-light);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--accent-color), #a855f7);
    border-radius: var(--radius-full);
    transition: width 0.4s ease;
}

/* Question Section */
.question-group {
    margin-bottom: 2.25rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.question-group:focus-within, .question-group:hover {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.question-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.question-number {
    color: var(--accent-color);
    font-weight: 700;
}

.question-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
}

/* Selection Tiles (Radio & Checkbox) */
.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 0.75rem;
}

.options-stack {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.option-tile {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    background: var(--input-bg);
    border: 1.5px solid var(--input-border);
    border-radius: var(--radius-sm);
    padding: 0.85rem 1rem;
    cursor: pointer;
    user-select: none;
    transition: all var(--transition-fast);
}

.option-tile:hover {
    border-color: var(--accent-color);
    background: var(--accent-light);
    transform: translateY(-1px);
}

.option-tile input[type="radio"],
.option-tile input[type="checkbox"] {
    width: 1.15rem;
    height: 1.15rem;
    accent-color: var(--accent-color);
    cursor: pointer;
}

.option-tile span {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
}

/* Custom Text inputs */
.text-input-field {
    width: 100%;
    padding: 0.85rem 1rem;
    background: var(--input-bg);
    border: 1.5px solid var(--input-border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.text-input-field:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

textarea.text-input-field {
    min-height: 100px;
    resize: vertical;
}

.other-input {
    margin-top: 0.65rem;
    display: none;
}

.other-input.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

/* NPS Rating Bar (0 - 10) */
.nps-rating-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.nps-buttons-grid {
    display: flex;
    justify-content: space-between;
    gap: 0.35rem;
    flex-wrap: wrap;
}

.nps-btn {
    flex: 1;
    min-width: 40px;
    height: 48px;
    background: var(--input-bg);
    border: 1.5px solid var(--input-border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.05rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.nps-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
    transform: scale(1.05);
}

.nps-btn.selected {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: #ffffff;
    box-shadow: 0 4px 12px var(--accent-glow);
    transform: scale(1.08);
}

.nps-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* Submit Button */
.submit-btn-block {
    margin-top: 2rem;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-color), #4f46e5);
    color: #ffffff;
    border: none;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: 0 4px 15px var(--accent-glow);
    transition: all var(--transition-fast);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--accent-glow);
}

.btn-primary:active {
    transform: translateY(0);
}

/* Success View */
.thankyou-card {
    text-align: center;
    padding: 4rem 2rem;
    display: none;
    animation: fadeIn 0.5s ease-out;
}

.thankyou-icon {
    width: 80px;
    height: 80px;
    background: rgba(16, 185, 129, 0.15);
    color: var(--success-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.thankyou-icon i {
    width: 48px;
    height: 48px;
}

.thankyou-card h2 {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.thankyou-card p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* Admin Dashboard Specific Styles */
.admin-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    box-shadow: var(--shadow-sm);
}

.stat-icon {
    width: 54px;
    height: 54px;
    border-radius: var(--radius-sm);
    background: var(--accent-light);
    color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon i {
    width: 28px;
    height: 28px;
}

.stat-info h3 {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.25rem;
}

.stat-info .stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Charts Grid */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.chart-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.chart-card:hover {
    box-shadow: var(--shadow-md);
}

.chart-card-full {
    grid-column: 1 / -1;
}

.chart-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.chart-type-toggle {
    display: flex;
    gap: 0.25rem;
    background: var(--input-bg);
    padding: 0.25rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--input-border);
}

.chart-type-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.chart-type-btn:hover {
    color: var(--accent-color);
}

.chart-type-btn.active {
    background: var(--accent-color);
    color: #ffffff;
    box-shadow: 0 2px 6px var(--accent-glow);
}

.chart-card-header h3 {
    font-size: 1.05rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.chart-card-header h3 i {
    color: var(--accent-color);
    width: 20px;
    height: 20px;
}

.chart-wrapper {
    position: relative;
    height: 240px;
}

/* Data Table Component */
.table-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);

}

.table-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
}

.search-box {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-full);
    padding: 0.4rem 1rem;
    width: 280px;
}

.search-box input {
    border: none;
    background: transparent;
    outline: none;
    color: var(--text-primary);
    width: 100%;
    font-size: 0.9rem;
}

.toolbar-actions {
    display: flex;
    gap: 0.75rem;
}

.btn-secondary {
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    color: var(--text-primary);
    padding: 0.55rem 1.1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    transition: all var(--transition-fast);
}

.btn-secondary:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

/* Responsive Table */
.table-responsive {
    width: 100%;
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.9rem;
}

.data-table th, .data-table td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--card-border);
}

.data-table th {
    background: rgba(0, 0, 0, 0.02);
    color: var(--text-secondary);
    font-weight: 600;
}

.data-table tbody tr:hover {
    background: rgba(99, 102, 241, 0.04);
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
}

.badge-nps-high { background: rgba(16, 185, 129, 0.15); color: #059669; }
.badge-nps-mid { background: rgba(245, 158, 11, 0.15); color: #d97706; }
.badge-nps-low { background: rgba(239, 68, 68, 0.15); color: #dc2626; }

.action-icon-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.3rem;
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast);
}

.action-icon-btn:hover {
    color: var(--danger-color);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1.25rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.pagination-btns {
    display: flex;
    gap: 0.5rem;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 650px;
    max-height: 85vh;
    overflow-y: auto;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    position: relative;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--card-border);
}

.modal-close-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
}

.modal-close-btn:hover {
    color: var(--text-primary);
}

.modal-detail-item {
    margin-bottom: 1rem;
}

.modal-detail-label {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent-color);
    text-transform: uppercase;
}

.modal-detail-val {
    font-size: 0.95rem;
    color: var(--text-primary);
    margin-top: 0.2rem;
}

/* Keyframes */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Footer */
.app-footer {
    text-align: center;
    padding: 1.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    border-top: 1px solid var(--card-border);
    margin-top: 2rem;
}