/* ========== 프리미엄 다크 모드 테마 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 다크 배경 */
    --bg-primary: #0B0E17;
    --bg-secondary: #141824;
    --bg-card: #1A1F35;
    --bg-card-hover: #222844;

    /* 텍스트 */
    --text-primary: #FFFFFF;
    --text-secondary: #B8BFCC;
    --text-muted: #6B7280;

    /* 브랜드 색상 - 네온 블루 */
    --color-primary: #00D9FF;
    --color-primary-glow: rgba(0, 217, 255, 0.5);
    --color-secondary: #7C3AED;
    --color-accent: #F59E0B;

    /* 상태 색상 - 네온 효과 */
    --color-success: #10B981;
    --color-success-glow: rgba(16, 185, 129, 0.3);
    --color-warning: #F59E0B;
    --color-warning-glow: rgba(245, 158, 11, 0.3);
    --color-danger: #EF4444;
    --color-danger-glow: rgba(239, 68, 68, 0.3);

    /* 그라데이션 */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-blue: linear-gradient(135deg, #00D9FF 0%, #0099CC 100%);
    --gradient-purple: linear-gradient(135deg, #A855F7 0%, #7C3AED 100%);
    --gradient-green: linear-gradient(135deg, #10B981 0%, #059669 100%);
    --gradient-card: linear-gradient(135deg, #1A1F35 0%, #141824 100%);

    /* 글로우 효과 */
    --glow-sm: 0 0 10px var(--color-primary-glow);
    --glow-md: 0 0 20px var(--color-primary-glow), 0 0 40px var(--color-primary-glow);
    --glow-lg: 0 0 30px var(--color-primary-glow), 0 0 60px var(--color-primary-glow);

    /* Shadow */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.6);
}

@keyframes glow {
    0%, 100% { box-shadow: var(--glow-sm); }
    50% { box-shadow: var(--glow-md); }
}

@keyframes pulse-border {
    0%, 100% { border-color: var(--color-primary); }
    50% { border-color: rgba(0, 217, 255, 0.5); }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
}

/* ========== 헤더 ========== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 72px;
    background: rgba(20, 24, 36, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 217, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 32px;
}

.menu-btn {
    background: linear-gradient(135deg, #00D9FF 0%, #0099CC 100%);
    border: none;
    width: 48px;
    height: 48px;
    border-radius: 12px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    box-shadow: 0 4px 12px rgba(0, 217, 255, 0.3);
    transition: all 0.3s;
}

.menu-btn:hover {
    transform: scale(1.05);
    box-shadow: var(--glow-md);
}

.menu-btn span {
    width: 24px;
    height: 3px;
    background: white;
    border-radius: 2px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo svg text {
    fill: var(--color-primary);
    filter: drop-shadow(var(--glow-sm));
}

.logo-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 600;
    letter-spacing: 0.5px;
}

.main-nav {
    display: flex;
    gap: 8px;
    background: rgba(26, 31, 53, 0.5);
    padding: 6px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 12px 24px;
    border-radius: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s;
    position: relative;
}

.nav-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 12px;
    padding: 1px;
    background: linear-gradient(135deg, transparent, transparent);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.3s;
}

.nav-btn:hover {
    background: rgba(0, 217, 255, 0.1);
    color: var(--color-primary);
    transform: translateY(-2px);
}

.nav-btn.active {
    background: linear-gradient(135deg, #00D9FF 0%, #0099CC 100%);
    color: white;
    box-shadow: 0 8px 20px rgba(0, 217, 255, 0.4);
    animation: glow 3s infinite;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 24px;
}

.status-badge {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    background: rgba(26, 31, 53, 0.8);
    border-radius: 12px;
    border: 1px solid rgba(16, 185, 129, 0.3);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.2);
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-success);
    box-shadow: 0 0 10px var(--color-success);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.7;
        transform: scale(1.1);
    }
}

.clock {
    font-size: 16px;
    color: var(--color-primary);
    font-weight: 700;
    letter-spacing: 1px;
    text-shadow: var(--glow-sm);
}

/* ========== 사이드바 ========== */
.sidebar {
    position: fixed;
    left: 0;
    top: 72px;
    width: 320px;
    height: calc(100vh - 72px);
    background: rgba(20, 24, 36, 0.95);
    backdrop-filter: blur(20px);
    border-right: 1px solid rgba(0, 217, 255, 0.1);
    padding: 32px 24px;
    overflow-y: auto;
    z-index: 900;
}

.sidebar-section {
    margin-bottom: 32px;
    animation: slideIn 0.5s ease-out;
}

.sidebar-section h3 {
    font-size: 11px;
    color: var(--color-primary);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 700;
}

.building-select select {
    width: 100%;
    padding: 16px;
    background: var(--gradient-card);
    border: 2px solid rgba(0, 217, 255, 0.2);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.building-select select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--glow-md);
}

.view-controls {
    display: flex;
    gap: 12px;
}

.view-btn {
    flex: 1;
    padding: 14px;
    background: var(--bg-card);
    border: 2px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
}

.view-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-2px);
}

.view-btn.active {
    background: var(--gradient-blue);
    color: white;
    border-color: var(--color-primary);
    box-shadow: var(--glow-md);
}

.floor-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.floor-btn {
    padding: 12px 16px;
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    color: var(--text-secondary);
    font-size: 13px;
    text-align: left;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 600;
    position: relative;
    overflow: hidden;
}

.floor-btn::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--color-primary);
    transform: scaleY(0);
    transition: transform 0.3s;
}

.floor-btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--color-primary);
    transform: translateX(4px);
}

.floor-btn.active {
    background: rgba(0, 217, 255, 0.1);
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.floor-btn.active::before {
    transform: scaleY(1);
}

.filter-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.filter-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--bg-card);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s;
}

.filter-item:hover {
    background: var(--bg-card-hover);
}

.filter-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--color-primary);
}

.filter-item label {
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
}

/* ========== 메인 컨텐츠 ========== */
.main-content {
    margin-left: 320px;
    margin-top: 72px;
    padding: 40px;
    min-height: calc(100vh - 72px);
}

/* ========== 통계 카드 ========== */
.stats-overview {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 24px;
    margin-bottom: 40px;
}

.stat-card {
    background: var(--gradient-card);
    border-radius: 20px;
    padding: 28px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: var(--shadow-lg);
    transition: all 0.4s;
    animation: slideIn 0.5s ease-out;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 217, 255, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s;
}

.stat-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-card-primary {
    background: var(--gradient-blue);
    border: none;
    display: flex;
    gap: 24px;
    box-shadow: 0 8px 32px rgba(0, 217, 255, 0.3);
}

.stat-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    animation: float 3s ease-in-out infinite;
}

.stat-content {
    flex: 1;
}

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-card-primary .stat-label {
    color: rgba(255, 255, 255, 0.9);
}

.stat-value {
    font-size: 40px;
    font-weight: 900;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 8px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.stat-card-primary .stat-value {
    color: white;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.stat-total {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.7);
}

.stat-change {
    font-size: 13px;
    font-weight: 700;
    margin-top: 8px;
}

.stat-change.positive {
    color: var(--color-success);
}

.stat-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 700;
    margin-top: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.entry-stat {
    color: #60A5FA;
    text-shadow: 0 0 10px rgba(96, 165, 250, 0.5);
}

.entry-badge {
    background: rgba(96, 165, 250, 0.2);
    color: #60A5FA;
    border: 1px solid rgba(96, 165, 250, 0.3);
}

.exit-stat {
    color: #34D399;
    text-shadow: 0 0 10px rgba(52, 211, 153, 0.5);
}

.exit-badge {
    background: rgba(52, 211, 153, 0.2);
    color: #34D399;
    border: 1px solid rgba(52, 211, 153, 0.3);
}

/* ========== 시각화 섹션 ========== */
.visualization-section {
    margin-bottom: 40px;
}

.viz-full {
    width: 100%;
}

.card {
    background: var(--gradient-card);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    animation: slideIn 0.5s ease-out;
}

.card-header {
    padding: 24px 32px;
    border-bottom: 1px solid rgba(0, 217, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0, 217, 255, 0.05);
}

.card-header h2, .card-header h3 {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: 0.5px;
}

.building-controls, .icon-btn {
    display: flex;
    gap: 12px;
}

.icon-btn {
    width: 44px;
    height: 44px;
    background: rgba(0, 217, 255, 0.1);
    border: 1px solid rgba(0, 217, 255, 0.2);
    border-radius: 12px;
    color: var(--color-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.icon-btn:hover {
    background: rgba(0, 217, 255, 0.2);
    border-color: var(--color-primary);
    transform: scale(1.1) rotate(5deg);
    box-shadow: var(--glow-sm);
}

/* ========== 차트 ========== */
.chart-container {
    padding: 32px;
    height: 350px;
}

.chart-legend {
    display: flex;
    justify-content: center;
    gap: 32px;
    padding: 0 32px 24px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
}

.legend-dot {
    width: 16px;
    height: 16px;
    border-radius: 4px;
    box-shadow: 0 0 10px currentColor;
}

.entry-color {
    background: #60A5FA;
}

.exit-color {
    background: #34D399;
}

/* ========== 활동 로그 ========== */
.log-filter .filter-btn {
    padding: 12px 24px;
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
}

.log-filter .filter-btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.log-filter .filter-btn.active {
    background: var(--gradient-blue);
    color: white;
    border-color: var(--color-primary);
    box-shadow: var(--glow-sm);
}

.log-list {
    max-height: 500px;
    overflow-y: auto;
}

.log-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px 32px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s;
}

.log-item:hover {
    background: rgba(0, 217, 255, 0.05);
    border-left: 3px solid var(--color-primary);
    padding-left: 29px;
}

.log-time {
    font-size: 13px;
    color: var(--color-primary);
    font-weight: 700;
    min-width: 70px;
}

.log-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.log-icon.entry {
    background: rgba(96, 165, 250, 0.2);
    color: #60A5FA;
}

.log-icon.exit {
    background: rgba(52, 211, 153, 0.2);
    color: #34D399;
}

.log-title {
    font-size: 15px;
    color: var(--text-primary);
    font-weight: 700;
}

.log-subtitle {
    font-size: 13px;
    color: var(--text-secondary);
}

.log-badge {
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
}

.log-badge.employee {
    background: rgba(96, 165, 250, 0.2);
    color: #60A5FA;
    border: 1px solid rgba(96, 165, 250, 0.3);
}

.log-badge.visitor {
    background: rgba(245, 158, 11, 0.2);
    color: #F59E0B;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

/* ========== 스크롤바 ========== */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #00D9FF, #0099CC);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* ========== 시뮬레이터 로그 ========== */
.simulator-log-section {
    margin-bottom: 32px;
}

.header-title-group {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    gap: 24px;
    flex-wrap: wrap;
}

.log-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.log-search {
    padding: 10px 16px;
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 13px;
    width: 200px;
    transition: all 0.3s;
}

.log-search:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.1);
}

.log-filter-select {
    padding: 10px 16px;
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.log-filter-select:hover {
    border-color: var(--color-primary);
}

.control-btn {
    width: 40px;
    height: 40px;
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.control-btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: scale(1.05);
}

.control-btn.paused {
    background: var(--gradient-blue);
    color: white;
    border-color: var(--color-primary);
}

.simulator-status {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 16px;
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.log-count {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 600;
    padding: 4px 12px;
    background: rgba(0, 217, 255, 0.1);
    border-radius: 6px;
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--text-muted);
    animation: pulse 2s ease-in-out infinite;
}

.simulator-status.running .status-indicator {
    background: var(--color-success);
    box-shadow: 0 0 15px var(--color-success-glow);
}

.simulator-status.stopped .status-indicator {
    background: var(--color-danger);
    animation: none;
}

.simulator-status.error .status-indicator {
    background: var(--color-warning);
    animation: none;
}

.status-text {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-secondary);
}

.simulator-status.running .status-text {
    color: var(--color-success);
}

.log-console {
    background: #0A0E17;
    border-radius: 0 0 20px 20px;
    padding: 24px;
    max-height: 600px;
    overflow-y: auto;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 13px;
    line-height: 1.6;
}

.log-console-line {
    padding: 4px 0;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.log-console-line:hover {
    background: rgba(0, 217, 255, 0.05);
    padding-left: 8px;
}

.log-console-line.log-info {
    color: #B8BFCC;
}

.log-console-line.log-success {
    color: var(--color-success);
}

.log-console-line.log-entry {
    color: #60A5FA;
    font-weight: 600;
}

.log-console-line.log-exit {
    color: #34D399;
    font-weight: 600;
}

.log-console-line.log-error {
    color: var(--color-danger);
    font-weight: 600;
    background: rgba(239, 68, 68, 0.1);
    padding: 8px;
    border-left: 3px solid var(--color-danger);
}

.log-console-line.log-warning {
    color: var(--color-warning);
}

.log-loading {
    text-align: center;
    padding: 40px;
    color: var(--text-muted);
    font-size: 14px;
}

/* ========== 반응형 ========== */
@media (max-width: 1440px) {
    .stats-overview {
        grid-template-columns: 1fr 1fr;
    }

    .visualization-section {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .log-console {
        font-size: 11px;
    }
}