:root {
    /* Color Palette */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --accent-primary: #38bdf8; /* Sky Blue */
    --accent-secondary: #818cf8; /* Indigo */
    --accent-danger: #f43f5e;
    --accent-success: #22c55e;
    --accent-warning: #eab308;
    
    /* Glassmorphism */
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(148, 163, 184, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    background-image: 
        radial-gradient(at 0% 0%, hsla(253,16%,7%,1) 0, transparent 50%), 
        radial-gradient(at 50% 0%, hsla(225,39%,30%,1) 0, transparent 50%), 
        radial-gradient(at 100% 0%, hsla(339,49%,30%,1) 0, transparent 50%);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* Header */
.header {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: var(--spacing-sm) 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: linear-gradient(to right, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo img {
    height: 32px;
    width: 32px;
}

.nav {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 8px;
}

.nav-link:hover, .nav-link.active {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

/* Main Content */
.main {
    padding: var(--spacing-lg) 0;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

.page-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(to right, #fff, #cbd5e1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Grid Layout */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.section-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--accent-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* Cards */
.card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: var(--spacing-md);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--glass-shadow);
    border-color: rgba(148, 163, 184, 0.3);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.sensor-icon, .actuator-icon {
    font-size: 1.5rem;
    background: rgba(255,255,255,0.1);
    padding: 8px;
    border-radius: 12px;
}

.sensor-name, .actuator-name {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.card-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.sensor-value {
    font-size: 2.5rem;
    font-weight: 700;
    font-family: var(--font-heading);
    color: var(--text-primary);
}

.sensor-unit {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-top: -4px;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--glass-border);
    padding-top: var(--spacing-sm);
}

/* Logic for Status Colors */
.status-badge {
    padding: 4px 12px;
    border-radius: 9999px;
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-badge.connected {
    background: rgba(34, 197, 94, 0.2);
    color: var(--accent-success);
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.status-badge.disconnected {
    background: rgba(244, 63, 94, 0.2);
    color: var(--accent-danger);
    border: 1px solid rgba(244, 63, 94, 0.3);
}

/* Buttons */
.btn {
    appearance: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-body);
    font-weight: 600;
    transition: all 0.2s ease;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-toggle {
    width: 100%;
    padding: 10px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.02);
}

.btn-action {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    padding: 12px 24px;
    box-shadow: 0 4px 12px rgba(56, 189, 248, 0.3);
}

.btn-action:hover {
    filter: brightness(1.1);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(56, 189, 248, 0.4);
}

.btn-ghost {
    padding: 12px 24px;
    color: var(--text-primary);
    text-decoration: none;
    border: 1px solid rgba(148, 163, 184, 0.18);
    background: rgba(255, 255, 255, 0.04);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-2px);
}

.actuator-status {
    font-size: 1.25rem;
    font-weight: 700;
    padding: 6px 16px;
    border-radius: 12px;
}

.actuator-status.on {
    color: var(--accent-success);
    background: rgba(34, 197, 94, 0.15);
    box-shadow: 0 0 12px rgba(34, 197, 94, 0.3);
}

.actuator-status.off {
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.05);
}

/* Footer */
.footer {
    text-align: center;
    padding: var(--spacing-lg) 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-top: 1px solid var(--glass-border);
    margin-top: var(--spacing-lg);
}

/* Animations */
@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(34, 197, 94, 0); }
    100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

.live-indicator {
    width: 8px;
    height: 8px;
    background-color: var(--accent-success);
    border-radius: 50%;
    display: inline-block;
    animation: pulse 2s infinite;
    margin-right: 6px;
}

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .nav {
        width: 100%;
        justify-content: center;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

/* NEW STYLES FOR ROOM-BASED DASHBOARD */

/* Location Tabs */
.location-tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: var(--spacing-sm);
    overflow-x: auto;
}

.tab-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    padding: var(--spacing-xs) var(--spacing-md);
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.tab-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
    color: var(--accent-primary);
    background: rgba(56, 189, 248, 0.1);
    box-shadow: 0 0 15px rgba(56, 189, 248, 0.2);
}

/* Room Cards */
.room-card {
    display: flex;
    flex-direction: column;
    min-height: 220px;
    position: relative;
    overflow: hidden;
}

.room-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at top right, rgba(56, 189, 248, 0.12), transparent 35%),
        linear-gradient(180deg, rgba(255,255,255,0.02), transparent 45%);
    pointer-events: none;
}

.dashboard-shell {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.overview-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr);
    gap: 1.5rem;
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
}

.overview-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at top left, rgba(56, 189, 248, 0.16), transparent 28%),
        radial-gradient(circle at bottom right, rgba(129, 140, 248, 0.14), transparent 30%);
    pointer-events: none;
}

.overview-copy,
.overview-side {
    position: relative;
    z-index: 1;
}

.overview-title {
    margin-bottom: 0.75rem;
}

.overview-subtitle {
    max-width: 54ch;
    color: var(--text-secondary);
    font-size: 1rem;
}

.overview-hero-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.25rem;
    flex-wrap: wrap;
}

.live-status-panel {
    display: inline-flex;
    align-items: center;
    align-self: flex-end;
    padding: 0.85rem 1rem;
    border-radius: 999px;
    background: rgba(2, 6, 23, 0.4);
    border: 1px solid rgba(34, 197, 94, 0.2);
    margin-left: auto;
}

.overview-side {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: stretch;
}

.overview-mini-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.overview-mini-card,
.overview-pill {
    background: rgba(2, 6, 23, 0.34);
    border: 1px solid rgba(148, 163, 184, 0.12);
    border-radius: 18px;
    padding: 1rem 1.1rem;
}

.overview-mini-card strong,
.overview-pill strong {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--text-primary);
}

.overview-mini-label,
.overview-pill-label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.45rem;
}

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

.location-tabs-modern {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
    background: rgba(2, 6, 23, 0.25);
    border: 1px solid rgba(148, 163, 184, 0.08);
    padding: 0.4rem;
    border-radius: 18px;
}

.overview-summary {
    display: flex;
    gap: 0.85rem;
    flex-wrap: wrap;
}

.overview-grid {
    align-items: stretch;
}

.room-card-modern {
    min-height: 290px;
    padding: 1.25rem;
    border-radius: 24px;
}

.room-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.room-card-title {
    font-size: 1.35rem;
}

.room-card-subtitle {
    margin-top: 0.2rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.room-time-badge {
    padding: 0.45rem 0.75rem;
    border-radius: 999px;
    background: rgba(2, 6, 23, 0.35);
    color: var(--text-secondary);
    font-size: 0.82rem;
}

.room-empty-copy,
.room-footer-note {
    color: var(--text-secondary);
    font-size: 0.9rem;
    padding: 0.75rem 0;
}

.room-actuators-stack {
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid rgba(148, 163, 184, 0.12);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.actuator-row-modern {
    padding: 0.75rem 0.85rem;
    border-radius: 18px;
    background: rgba(2, 6, 23, 0.28);
    border: 1px solid rgba(148, 163, 184, 0.08);
}

.actuator-meta {
    align-items: center;
}

.actuator-copy {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.actuator-name-chip {
    color: var(--text-secondary);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.room-metrics {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex-grow: 1;
    margin: var(--spacing-sm) 0;
}

.metric-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.metric-row:last-child {
    border-bottom: none;
}

.metric-info {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
}

.metric-icon {
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
}

.metric-label {
    font-size: 0.95rem;
}

.metric-value-container {
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.metric-value {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.metric-unit {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Actuator Section in Room Card */
.room-actuator {
    margin-top: auto;
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--glass-border);
}

.actuator-compact {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
}

.actuator-status-text {
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
}

.actuator-status-text.on {
    color: var(--accent-success);
}

.actuator-status-text.off {
    color: var(--text-secondary);
}

.actuator-status-text.pending {
    color: var(--accent-warning);
}

.btn-toggle-sm {
    padding: 6px 16px;
    font-size: 0.85rem;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-toggle-sm:hover {
    background: rgba(255, 255, 255, 0.2);
}

.btn-toggle-sm.is-pending,
.btn-toggle-sm:disabled {
    background: linear-gradient(135deg, rgba(234, 179, 8, 0.25), rgba(56, 189, 248, 0.18));
    color: var(--text-primary);
    border: 1px solid rgba(234, 179, 8, 0.35);
    cursor: wait;
    opacity: 0.95;
}

.history-shell {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.history-hero {
    display: flex;
    justify-content: space-between;
    gap: 1.5rem;
    align-items: flex-start;
    padding: 1.75rem 1.75rem 0.5rem;
}

.history-eyebrow {
    font-size: 0.78rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--accent-primary);
    margin-bottom: 0.65rem;
}

.history-title {
    margin-bottom: 0.75rem;
}

.history-subtitle {
    max-width: 780px;
    color: var(--text-secondary);
    font-size: 1rem;
}

.history-live-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.85rem 1rem;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.55);
    border: 1px solid rgba(56, 189, 248, 0.18);
    color: var(--text-primary);
    white-space: nowrap;
}

.glass-panel {
    background: linear-gradient(180deg, rgba(30, 41, 59, 0.78), rgba(15, 23, 42, 0.9));
    backdrop-filter: blur(18px);
    border: 1px solid rgba(148, 163, 184, 0.12);
    border-radius: 20px;
    box-shadow: 0 18px 50px rgba(2, 6, 23, 0.28);
}

.history-toolbar {
    padding: 1.1rem;
    display: flex;
    justify-content: space-between;
    align-items: end;
    gap: 1rem;
    flex-wrap: wrap;
}

.history-filter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.9rem;
    flex: 1;
    min-width: min(100%, 760px);
}

.history-filter {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
}

.history-filter label {
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
}

.history-select {
    width: 100%;
    padding: 0.9rem 1rem;
    border-radius: 14px;
    background: rgba(2, 6, 23, 0.45);
    border: 1px solid rgba(148, 163, 184, 0.14);
    color: var(--text-primary);
    font-family: var(--font-body);
}

.history-actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.history-toggle {
    appearance: none;
    border: 1px solid rgba(148, 163, 184, 0.15);
    background: rgba(255,255,255,0.04);
    color: var(--text-secondary);
    padding: 0.9rem 1rem;
    border-radius: 14px;
    cursor: pointer;
    transition: all 0.25s ease;
    font-weight: 600;
}

.history-toggle.is-active {
    color: var(--text-primary);
    border-color: rgba(34, 197, 94, 0.35);
    background: rgba(34, 197, 94, 0.12);
}

.history-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 1rem;
}

.history-stat-card {
    padding: 1rem 1.15rem;
    border-radius: 18px;
    background: linear-gradient(180deg, rgba(30, 41, 59, 0.88), rgba(15, 23, 42, 0.92));
    border: 1px solid rgba(148, 163, 184, 0.1);
}

.history-stat-label {
    display: block;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.history-stat-value {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    color: var(--text-primary);
}

.history-stat-time {
    font-size: 1.15rem;
}

.history-chart-stack {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.history-empty-state {
    min-height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    text-align: center;
    color: var(--text-secondary);
}

.history-chart-card {
    padding: 1.1rem 1.1rem 1.3rem;
}

.history-chart-frame {
    height: 320px;
    position: relative;
}

.history-panel-head {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.history-panel-meta {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.history-section-title {
    margin-bottom: 0;
}

.history-table-panel {
    padding: 1.1rem;
}

.history-table-wrap {
    border-radius: 18px;
    overflow: hidden;
    background: rgba(2, 6, 23, 0.28);
    border: 1px solid rgba(148, 163, 184, 0.08);
}

.history-table th,
.history-table td {
    padding: 0.95rem 1rem;
}

.history-table tbody tr {
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.history-table tbody tr:hover {
    background: rgba(255,255,255,0.03);
}

@media (max-width: 768px) {
    .overview-hero {
        grid-template-columns: 1fr;
    }

    .overview-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .overview-summary {
        width: 100%;
    }

    .overview-summary .overview-pill {
        flex: 1;
    }

    .overview-mini-grid {
        grid-template-columns: 1fr 1fr;
    }

    .history-hero {
        flex-direction: column;
        padding: 0.25rem 0 0;
    }

    .history-toolbar {
        align-items: stretch;
    }

    .history-actions {
        width: 100%;
        justify-content: stretch;
    }

    .history-actions .btn,
    .history-actions .history-toggle {
        flex: 1;
    }
}