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

:root {
    --bg: hsl(220, 20%, 10%);
    --bg-card: hsl(220, 20%, 14%);
    --bg-card-hover: hsl(220, 20%, 17%);
    --border: hsl(220, 15%, 22%);
    --text: hsl(0, 0%, 90%);
    --text-secondary: hsl(0, 0%, 60%);
    --accent-green: hsl(145, 70%, 50%);
    --accent-green-dim: hsl(145, 40%, 20%);
    --accent-amber: hsl(40, 90%, 55%);
    --accent-amber-dim: hsl(40, 50%, 18%);
    --accent-blue: hsl(210, 80%, 55%);
    --accent-blue-dim: hsl(210, 50%, 18%);
    --accent-red: hsl(0, 70%, 55%);
    --accent-red-dim: hsl(0, 40%, 18%);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: 0.2s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100dvh;
    -webkit-font-smoothing: antialiased;
}

.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-card);
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(12px);
}

.header h1 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.header .status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-green);
    margin-right: 8px;
    box-shadow: 0 0 8px var(--accent-green);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.btn-logout {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.8rem;
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: inherit;
    transition: all var(--transition);
}

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

.main {
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.room-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

@media (min-width: 640px) {
    .room-grid {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    }
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    transition: all var(--transition);
}

.card:hover {
    background: var(--bg-card-hover);
    border-color: hsl(220, 15%, 28%);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    font-size: 1.1rem;
    font-weight: 600;
    text-transform: capitalize;
}

.card-header .icon {
    font-size: 1.3rem;
}

.device-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
    border-top: 1px solid hsl(220, 15%, 18%);
}

.device-row:first-child {
    border-top: none;
}

.device-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.device-label .icon {
    font-size: 1.1rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    transition: all var(--transition);
}

.badge-open {
    background: var(--accent-green-dim);
    color: var(--accent-green);
    box-shadow: 0 0 12px hsla(145, 70%, 50%, 0.15);
}

.badge-closed {
    background: hsl(220, 15%, 18%);
    color: var(--text-secondary);
}

.badge-moisture-high {
    background: var(--accent-blue-dim);
    color: var(--accent-blue);
}

.badge-moisture-low {
    background: hsl(220, 15%, 18%);
    color: var(--text-secondary);
}

.toggle-btn {
    position: relative;
    width: 52px;
    height: 28px;
    border-radius: 14px;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    background: hsl(220, 15%, 22%);
}

.toggle-btn::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--text);
    transition: all var(--transition);
}

.toggle-btn.active {
    background: var(--accent-green);
    box-shadow: 0 0 16px hsla(145, 70%, 50%, 0.3);
}

.toggle-btn.active::after {
    transform: translateX(24px);
}

.toggle-btn.active-amber {
    background: var(--accent-amber);
    box-shadow: 0 0 16px hsla(40, 90%, 55%, 0.3);
}

.btn-action {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text);
    font-size: 0.85rem;
    font-family: inherit;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-action:hover {
    background: var(--accent-blue-dim);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.btn-action.cleaning {
    background: var(--accent-blue-dim);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    animation: pulse 1.5s ease-in-out infinite;
}

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

.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100dvh;
    padding: 20px;
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px 32px;
    width: 100%;
    max-width: 380px;
}

.login-card h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
    text-align: center;
}

.login-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-align: center;
    margin-bottom: 28px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color var(--transition);
    outline: none;
}

.form-input:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px hsla(210, 80%, 55%, 0.15);
}

.btn-primary {
    width: 100%;
    padding: 12px;
    border-radius: var(--radius-sm);
    border: none;
    background: var(--accent-blue);
    color: white;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-primary:hover {
    background: hsl(210, 80%, 48%);
    box-shadow: 0 4px 20px hsla(210, 80%, 55%, 0.3);
}

.error-msg {
    background: var(--accent-red-dim);
    color: var(--accent-red);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    margin-bottom: 16px;
    text-align: center;
}

.feedback {
    font-size: 0.78rem;
    padding: 4px 10px;
    border-radius: 6px;
    animation: fade-in 0.2s ease;
}

.feedback-success {
    color: var(--accent-green);
}

.feedback-error {
    color: var(--accent-red);
}

@keyframes fade-in {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

.htmx-settling .card {
    transition: opacity 0.2s ease;
}

.htmx-swapping {
    opacity: 0.7;
    transition: opacity 0.1s ease;
}

.no-lights {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-style: italic;
}