:root {
    --bg-main: #12161f;
    --bg-card: #1c222f;
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --color-normal: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    --color-unused: #475569;
    --border-color: #334155;
}

body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
}

.dashboard-container {
    padding: 20px;
}

/* 상단 요약 위젯 */
.summary-header {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.summary-card {
    flex: 1;
    background-color: var(--bg-card);
    padding: 15px 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.summary-card .label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    display: block;
    margin-bottom: 5px;
}

.summary-card .value {
    font-size: 1.8rem;
    font-weight: bold;
}

.error-card {
    border-color: var(--color-error);
}

.error-card .value {
    color: var(--color-error);
}

/* 레이아웃 구조 */
.workspace-layout {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.main-content {
    flex: 1;
    min-width: 600px;
}

/* 툴바 */
.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--bg-card);
    padding: 12px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
}

.search-input {
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 14px;
    border-radius: 4px;
}

.legend {
    display: flex;
    gap: 15px;
    font-size: 0.85rem;
}

.status-badge::before {
    content: '';
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-right: 6px;
}

.status-badge.normal::before { background-color: var(--color-normal); }
.status-badge.warning::before { background-color: var(--color-warning); }
.status-badge.error::before { background-color: var(--color-error); }
.status-badge.unused::before { background-color: var(--color-unused); }

/* 도면 맵 */
.map-container {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    overflow-x: auto;
}

.map-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.zone-controls {
    display: flex;
    gap: 8px;
}

.zone-btn {
    background-color: var(--bg-main);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 6px 14px;
    border-radius: 4px;
    cursor: pointer;
}

.zone-btn.active {
    background-color: #3b82f6;
    border-color: #3b82f6;
}

.zone-btn-manage {
    background-color: var(--bg-main);
    padding: 6px 14px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
}

.zone-btn-manage.add { color: #10b981; border: 1px solid #10b981; }
.zone-btn-manage.del { color: #ef4444; border: 1px solid #ef4444; }

.group-manage-bar {
    width: 100%;
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

/* 도면 격자 구조 */
.floor-grid {
    display: flex;
    flex-direction: column;
    gap: 30px;
    padding: 30px;
    background-color: var(--bg-main);
    border-radius: 6px;
    min-height: 400px;
    min-width: max-content;
    background-image: linear-gradient(var(--border-color) 1px, transparent 1px), linear-gradient(90deg, var(--border-color) 1px, transparent 1px);
    background-size: 30px 30px;
}

.map-row {
    display: flex;
    gap: 15px;
    min-height: 120px;
}

.group-box {
    background-color: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    width: 100px;
    padding: 15px 10px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
}

.group-box:hover {
    border-color: #3b82f6;
    transform: translateY(-2px);
}

.group-title {
    font-size: 1.2rem;
    font-weight: bold;
    color: #3b82f6;
    margin-bottom: 5px;
}

.group-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* 우측 사이드 패널 */
.right-panel-popup {
    width: 320px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
}

.panel-header-v2 {
    display: flex;
    flex-direction: column;
    gap: 10px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
    margin-bottom: 15px;
}

.panel-header-v2 .title-area {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.panel-header-v2 h3 { margin: 0; }

.panel-header-v2 .close-x {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    font-size: 1.1rem;
}

.btn-cluster-sm {
    display: flex;
    gap: 8px;
}

.action-btn-sm {
    background-color: var(--bg-main);
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: bold;
    cursor: pointer;
}

.action-btn-sm.add { color: #10b981; border: 1px solid #10b981; }
.action-btn-sm.del { color: #ef4444; border: 1px solid #ef4444; }

.rack-matrix-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.rack-cell-item {
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 12px 5px;
    text-align: center;
    cursor: pointer;
}

.rack-cell-item.정상 { border-color: var(--color-normal); color: var(--color-normal); }
.rack-cell-item.주의 { border-color: var(--color-warning); color: var(--color-warning); }
.rack-cell-item.장애 { border-color: var(--color-error); color: var(--color-error); }
.rack-cell-item.미사용 { border-color: var(--color-unused); color: var(--text-secondary); }

.cell-no { font-weight: bold; }
.cell-status { font-size: 0.75rem; margin-top: 3px; }

/* 42U 단면 팝업 */
.full-elevation-overlay {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    background-color: rgba(0,0,0,0.7);
    display: flex; justify-content: center; align-items: center;
    z-index: 1000;
}

.elevation-wrapper {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    width: 800px; height: 80vh;
    display: flex; flex-direction: column;
    padding: 20px;
}

.elevation-top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 15px;
}

.elevation-top-bar button {
    background-color: #3b82f6;
    color: white;
    border: none;
    padding: 6px 14px;
    border-radius: 4px;
    cursor: pointer;
}

.elevation-body {
    display: flex;
    flex: 1;
    gap: 20px;
    overflow: hidden;
    margin-top: 15px;
}

.rack-frame-scroller {
    width: 350px;
    background-color: var(--bg-main);
    border: 2px solid #475569;
    border-radius: 6px;
    padding: 10px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.u-slot-row {
    display: flex;
    align-items: center;
    height: 32px;
    min-height: 32px;
    border: 1px solid var(--border-color);
    border-radius: 3px;
    padding: 0 10px;
    cursor: pointer;
    font-size: 0.85rem;
}

.u-slot-row .idx {
    font-weight: bold;
    color: #3b82f6;
    width: 40px;
}

.u-slot-row.empty { background-color: #111827; color: #4b5563; }
.u-slot-row.occupied { background-color: #064e3b; border-color: var(--color-normal); }
.u-slot-row.reserved { background-color: #78350f; border-color: var(--color-warning); }

.unit-detail-console {
    flex: 1;
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group input[type="text"] {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    color: white;
    padding: 8px;
    border-radius: 4px;
}

.form-group.row-flex {
    flex-direction: row;
    gap: 20px;
}

.btn-group-cluster {
    display: flex;
    gap: 10px;
    margin-top: auto;
}

.btn-group-cluster button {
    flex: 1;
    padding: 10px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    border: none;
}

.btn-save { background-color: #10b981; color: white; }
.btn-delete { background-color: #ef4444; color: white; }

.spec-label {
    background-color: var(--bg-card);
    padding: 8px;
    border-radius: 4px;
    font-size: 0.85rem;
    border: 1px solid var(--border-color);
}

.notice {
    color: var(--text-secondary);
    text-align: center;
    margin-top: 30px;
}