:root {
    --bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --canvas-bg: radial-gradient(circle at center, #1b2f28 0%, #0a110e 100%);
    
    --panel-bg: rgba(15, 23, 42, 0.5);
    --border-color: rgba(255, 255, 255, 0.1);
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    
    --primary-color: #10b981;
    --primary-hover: #059669;
    --secondary-color: #3b82f6;
    --secondary-hover: #2563eb;
    --danger-color: #ef4444;    
    --danger-hover: #dc2626;
    --warning-color: #f59e0b;

    --panel-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --panel-backdrop: blur(16px);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg-gradient);
    color: var(--text-primary);
    overflow: hidden;
    height: 100vh;
}

/* Solidgreen 관리자 헤더(56px) 아래 나머지 영역만 차지하도록 조정 */
.app-container {
    display: flex;
    width: 100%;
    height: calc(100vh - 56px);
}

/* Sidebar Styling */
.sidebar {
    width: 280px;
    background: var(--panel-bg);
    backdrop-filter: var(--panel-backdrop);
    border-right: 1px solid var(--border-color);
    box-shadow: var(--panel-shadow);
    display: flex;
    flex-direction: column;
    padding: 24px 20px;
    overflow-y: auto;
    z-index: 10;
}

.cart-status-panel {
    position: fixed;
    top: 116px;
    right: 20px;
    width: 960px;
    max-height: calc(100vh - 136px);
    background: rgba(15, 23, 42, 0.96);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 16px 48px rgba(0,0,0,0.6);
    z-index: 50;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* 패널 본문: A/B 두 그룹 가로 배치 */
.cart-panel-body {
    display: flex;
    flex-direction: row;
    gap: 0;
    overflow-y: auto;
    flex: 1;
    padding: 8px;
}

.cart-panel-group {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.cart-panel-divider {
    width: 1px;
    background: rgba(255,255,255,0.12);
    margin: 0 8px;
    flex-shrink: 0;
}

/* 그룹 레이블 */
.cart-panel-group-label {
    font-size: 0.72rem;
    font-weight: 700;
    padding: 4px 6px;
    border-radius: 4px;
    margin-bottom: 4px;
    flex-shrink: 0;
}

.cart-panel-group-label--a {
    color: #60a5fa;
    background: rgba(59,130,246,0.12);
}

.cart-panel-group-label--b {
    color: #a78bfa;
    background: rgba(139,92,246,0.12);
}

/* 각 그룹 내 카트 리스트 — 8열 그리드 */
.cart-status-panel .cart-list--a,
.cart-status-panel .cart-list--b {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 4px;
    align-content: start;
}

.cart-status-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    cursor: move;
    user-select: none;
    font-weight: 700;
    font-size: 0.95rem;
    background: rgba(30, 58, 138, 0.4);
    flex-shrink: 0;
}

.cart-panel-close-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.3rem;
    cursor: pointer;
    line-height: 1;
    padding: 0 4px;
}

.cart-panel-close-btn:hover {
    color: white;
}

/* 팝업 내부 cart-list: A/B 5열 grid로 분리 (cart-list--a / cart-list--b 사용) */

.cart-status-panel .pagination-controls {
    padding: 8px 12px;
}

/* 팝업 내 카트 아이템 — 콤팩트 셀 */
.cart-status-panel .cart-item {
    padding: 5px 3px;
    border-radius: 6px;
    text-align: center;
    min-height: 80px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 2px;
}

.cart-status-panel .cart-header {
    flex-direction: column;
    align-items: center;
    gap: 2px;
    margin-bottom: 0;
}

.cart-status-panel .cart-id {
    font-size: 0.65rem;
    line-height: 1.2;
    word-break: keep-all;
}

.cart-status-panel .cart-status-select {
    font-size: 0.6rem;
    padding: 1px 2px;
    width: 100%;
}

.cart-status-panel .cart-progress {
    flex-direction: column;
    gap: 2px;
    margin-bottom: 0;
}

.cart-status-panel .current-hole {
    font-size: 0.62rem;
    min-width: unset;
    text-align: center;
}

.cart-status-panel .cart-times {
    flex-direction: column;
    align-items: center;
    font-size: 0.62rem;
    gap: 2px;
}

.cart-status-panel .cart-details-btn {
    font-size: 0.58rem;
    padding: 1px 3px;
}

.panel-header {
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.panel-header h2 {
    font-size: 1.25rem;
    font-weight: 700;
}

/* Controls */
.control-group {
    margin-bottom: 24px;
}

.control-group h3 {
    font-size: 0.875rem;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: 12px;
    letter-spacing: 0.05em;
}

.input-group {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.input-group label {
    font-size: 0.95rem;
}

.input-group input {
    width: 80px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-color);
    color: white;
    padding: 6px 10px;
    border-radius: 6px;
    outline: none;
    font-size: 0.95rem;
}

.input-group input[type="time"] {
    width: 90px;
    color-scheme: dark;
}

.input-group input:focus {
    border-color: var(--primary-color);
}

/* Buttons */
.btn {
    width: 100%;
    padding: 10px 16px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    margin-bottom: 10px;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.btn.primary:hover:not(:disabled) {
    background-color: var(--primary-hover);
}

.btn.secondary {
    background-color: var(--secondary-color);
    color: white;
}

.btn.secondary:hover:not(:disabled) {
    background-color: var(--secondary-hover);
}

.btn.danger {
    background-color: var(--danger-color);
    color: white;
}

.btn.danger:hover:not(:disabled) {
    background-color: var(--danger-hover);
}

.btn.outline {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn.outline:hover:not(:disabled) {
    background-color: rgba(255, 255, 255, 0.1);
}

.btn.warning {
    background-color: var(--warning-color);
    color: #1c1917;
    font-weight: 700;
}

.btn.warning:hover:not(:disabled) {
    background-color: #d97706;
}

/* Stats */
.stat-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 0.95rem;
}

/* Main Content (Canvas) */
.main-content {
    flex: 1;
    position: relative;
    background: var(--canvas-bg);
}

.canvas-container {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

canvas {
    max-width: 100%;
    max-height: 100%;
}

/* Cart List */
.cart-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex: 1;
    overflow-y: auto;
    padding: 4px 2px;
}

.empty-state {
    color: var(--text-secondary);
    text-align: center;
    padding: 20px;
    font-size: 0.9rem;
}

.cart-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 14px;
    transition: transform 0.2s ease, background 0.2s ease;
    flex-shrink: 0;
}

.cart-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.cart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.cart-id {
    font-weight: 600;
    font-size: 1rem;
}

.cart-status-select {
    background: rgba(15, 23, 42, 0.6);
    color: white;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 4px 8px;
    font-size: 0.85rem;
    outline: none;
}

.cart-status-select:focus {
    border-color: var(--warning-color);
}

.cart-progress {
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.progress-bar {
    flex: 1;
    height: 6px;
    background: rgba(255,255,255,0.1);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--primary-color);
    width: 0%;
    transition: width 0.2s linear;
}

.current-hole {
    font-size: 0.8rem;
    color: var(--text-secondary);
    min-width: 80px;
    text-align: right;
}

.cart-times {
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cart-details-btn {
    background: transparent;
    border: 1px solid var(--secondary-color);
    color: var(--secondary-color);
    border-radius: 4px;
    padding: 2px 6px;
    font-size: 0.7rem;
    cursor: pointer;
}

.cart-details-btn:hover {
    background: var(--secondary-color);
    color: white;
}

/* Pagination */
.pagination-controls {
    display: flex;
    align-items: center;
    gap: 6px;
    justify-content: center;
    padding: 10px 0 4px;
    border-top: 1px solid var(--border-color);
    font-size: 0.85rem;
    flex-shrink: 0;
}


#pageInput {
    width: 48px;
    text-align: center;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-color);
    color: white;
    border-radius: 4px;
    padding: 3px 4px;
    font-size: 0.85rem;
    outline: none;
}

#pageInput:focus {
    border-color: var(--primary-color);
}

/* Modal Styling */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 100;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: #0f172a;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    width: 500px;
    max-width: 90%;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
}

.modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
}

.modal-close:hover {
    color: white;
}

.modal-body {
    padding: 20px;
    overflow-y: auto;
    flex: 1;
}

.hole-times-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.hole-time-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 8px;
    border-radius: 6px;
    text-align: center;
    font-size: 0.85rem;
}

.hole-time-label {
    color: var(--text-secondary);
    margin-bottom: 4px;
    font-size: 0.75rem;
}

/* Global Summary Table */
.global-summary-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.72rem;
    text-align: center;
    white-space: nowrap;
}

.global-summary-table th,
.global-summary-table td {
    padding: 5px 3px;
    border: 1px solid var(--border-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 72px;
}

/* 고정 컬럼(그룹/카트/시각 등 앞 8열)은 최대 폭 다르게 */
.global-summary-table th:nth-child(-n+8),
.global-summary-table td:nth-child(-n+8) {
    max-width: 56px;
}

.global-summary-table th {
    background: rgba(15, 23, 42, 0.8);
    position: sticky;
    top: 0;
    z-index: 1;
    color: var(--text-secondary);
}

.global-summary-table tr:nth-child(even) {
    background: rgba(255, 255, 255, 0.02);
}

.global-summary-table tr:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* 전체 소요시간 모달 — 드래그 지원 */
#globalSummaryContent {
    position: fixed;
    top: 116px;
    left: 50%;
    transform: translateX(-50%);
    max-height: calc(100vh - 136px);
    margin: 0;
}

#globalSummaryContent.dragged {
    transform: none;
    left: auto;
}

#globalSummaryHeader {
    cursor: move;
    user-select: none;
}

/* ─── 완료 배너 ─── */
#completionBanner {
    display: none;
    position: fixed;
    top: 72px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(16, 185, 129, 0.95);
    color: #fff;
    font-weight: 700;
    font-size: 0.95rem;
    padding: 10px 24px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(16,185,129,0.5);
    z-index: 200;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateX(-50%) translateY(-20px); }
    to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}