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

:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --secondary: #06b6d4;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --dark: #1e293b;
    --gray: #64748b;
    --light-gray: #f1f5f9;
    --white: #ffffff;
    --border: #e2e8f0;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-lg: rgba(0, 0, 0, 0.15);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 1.5rem;
    color: var(--dark);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

/* Header */
.header {
    background: var(--white);
    border-radius: 1rem;
    padding: 1.5rem 2rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 6px var(--shadow);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    width: 3rem;
    height: 3rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.logo-icon svg {
    width: 1.75rem;
    height: 1.75rem;
}

.logo h1 {
    font-size: 1.875rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-status {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--light-gray);
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.status-indicator.connected {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.pulse {
    width: 0.5rem;
    height: 0.5rem;
    background: var(--gray);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.status-indicator.connected .pulse {
    background: var(--success);
}

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

.last-update {
    color: var(--gray);
    font-size: 0.875rem;
}

/* Main Grid */
.main-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
    grid-auto-rows: min-content;
}

.camera-card {
    grid-column: span 2;
}

.activity-card {
    grid-column: span 1;
}

@media (max-width: 1200px) {
    .camera-card, .activity-card {
        grid-column: span 1;
    }
}

/* Card */
.card {
    background: var(--white);
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: 0 4px 6px var(--shadow);
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 12px var(--shadow-lg);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.card-header h2 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--dark);
}

.card-header h2 svg {
    width: 1.5rem;
    height: 1.5rem;
    color: var(--primary);
}

/* Badge */
.badge {
    padding: 0.375rem 0.875rem;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge.online {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.badge.offline {
    background: rgba(100, 116, 139, 0.1);
    color: var(--gray);
}

.badge.alert {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

/* Camera */
.camera-container {
    position: relative;
    width: 100%;
    padding-top: 56.25%; /* 16:9 aspect ratio */
    background: var(--dark);
    border-radius: 0.75rem;
    overflow: hidden;
    margin-bottom: 1rem;
}

#cameraStream {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.camera-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(30, 41, 59, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.3s;
}

.camera-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.camera-placeholder {
    text-align: center;
    color: var(--gray);
}

.camera-placeholder svg {
    width: 4rem;
    height: 4rem;
    margin-bottom: 1rem;
}

.camera-placeholder p {
    font-size: 1.125rem;
    font-weight: 500;
}

.camera-ip {
    color: var(--gray);
    font-size: 0.875rem;
    font-weight: 500;
}

/* Sensors */
.sensor-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.sensor-item {
    padding: 1.5rem;
    border-radius: 0.75rem;
    text-align: center;
    transition: transform 0.2s;
}

.sensor-item:hover {
    transform: scale(1.05);
}

.sensor-item.temperature {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
}

.sensor-item.humidity {
    background: linear-gradient(135deg, #06b6d4, #3b82f6);
}

.sensor-icon {
    width: 3rem;
    height: 3rem;
    margin: 0 auto 1rem;
    color: white;
}

.sensor-icon svg {
    width: 100%;
    height: 100%;
}

.sensor-data {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.25rem;
    margin-bottom: 0.5rem;
}

.sensor-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
}

.sensor-unit {
    font-size: 1.25rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
}

.sensor-label {
    display: block;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.875rem;
    font-weight: 500;
}

/* Schedule */
.schedule-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.schedule-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--light-gray);
    border-radius: 0.75rem;
    transition: background 0.2s;
}

.schedule-item:hover {
    background: #e2e8f0;
}

.schedule-icon {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.schedule-icon svg {
    width: 1.5rem;
    height: 1.5rem;
}

.schedule-icon.morning {
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
}

.schedule-icon.noon {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
}

.schedule-icon.night {
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
}

.schedule-info {
    flex: 1;
}

.schedule-info h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.schedule-time {
    color: var(--gray);
    font-size: 0.875rem;
}

.schedule-status {
    padding: 0.375rem 0.875rem;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.schedule-status.pending {
    background: rgba(100, 116, 139, 0.1);
    color: var(--gray);
}

.schedule-status.acknowledged {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.schedule-status.alerted {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    animation: pulse 2s infinite;
}

/* Devices */
.devices-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.device-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--light-gray);
    border-radius: 0.75rem;
}

.device-info h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.device-house {
    color: var(--gray);
    font-size: 0.875rem;
}

/* Activity */
.activity-list {
    max-height: 400px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.activity-list::-webkit-scrollbar {
    width: 0.5rem;
}

.activity-list::-webkit-scrollbar-track {
    background: var(--light-gray);
    border-radius: 0.25rem;
}

.activity-list::-webkit-scrollbar-thumb {
    background: var(--gray);
    border-radius: 0.25rem;
}

.activity-item {
    display: flex;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--light-gray);
    border-radius: 0.5rem;
    border-left: 3px solid var(--primary);
}

.activity-item.success {
    border-left-color: var(--success);
}

.activity-item.warning {
    border-left-color: var(--warning);
}

.activity-item.danger {
    border-left-color: var(--danger);
}

.activity-icon {
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: white;
    flex-shrink: 0;
}

.activity-item.success .activity-icon {
    background: var(--success);
}

.activity-item.warning .activity-icon {
    background: var(--warning);
}

.activity-item.danger .activity-icon {
    background: var(--danger);
}

.activity-icon svg {
    width: 1rem;
    height: 1rem;
}

.activity-content {
    flex: 1;
}

.activity-message {
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.activity-time {
    color: var(--gray);
    font-size: 0.75rem;
}

.clear-btn {
    padding: 0.375rem 0.875rem;
    background: var(--light-gray);
    border: none;
    border-radius: 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--gray);
    cursor: pointer;
    transition: background 0.2s;
}

.clear-btn:hover {
    background: #e2e8f0;
}

/* Emergency */
.emergency-card {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: white;
    animation: emergencyPulse 2s infinite;
}

.emergency-card.hidden {
    display: none;
}

@keyframes emergencyPulse {
    0%, 100% {
        box-shadow: 0 4px 6px var(--shadow);
    }
    50% {
        box-shadow: 0 8px 20px rgba(239, 68, 68, 0.5);
    }
}

.emergency-content {
    text-align: center;
}

.emergency-icon {
    width: 4rem;
    height: 4rem;
    margin: 0 auto 1rem;
}

.emergency-icon svg {
    width: 100%;
    height: 100%;
    animation: shake 0.5s infinite;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.emergency-content h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.emergency-content p {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.dismiss-btn {
    padding: 0.75rem 2rem;
    background: white;
    color: var(--danger);
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s;
}

.dismiss-btn:hover {
    transform: scale(1.05);
}

/* Navigation */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-link {
    padding: 0.5rem 1rem;
    color: var(--gray);
    text-decoration: none;
    font-weight: 500;
    border-radius: 0.5rem;
    transition: all 0.2s;
}

.nav-link:hover {
    background: var(--light-gray);
    color: var(--dark);
}

.nav-link.active {
    background: var(--primary);
    color: white;
}

/* Auth Page */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.auth-container {
    width: 100%;
    max-width: 450px;
    padding: 1rem;
}

.auth-card {
    background: var(--white);
    border-radius: 1rem;
    padding: 2.5rem;
    box-shadow: 0 10px 25px var(--shadow-lg);
}

.auth-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-logo .logo-icon {
    width: 4rem;
    height: 4rem;
    margin: 0 auto 1rem;
}

.auth-logo h1 {
    font-size: 2rem;
}

.auth-form h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--dark);
}

.auth-subtitle {
    color: var(--gray);
    margin-bottom: 2rem;
}

.auth-form.hidden {
    display: none;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border);
    border-radius: 0.5rem;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group textarea {
    resize: vertical;
}

.char-count {
    display: block;
    text-align: right;
    font-size: 0.75rem;
    color: var(--gray);
    margin-top: 0.25rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    width: 100%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-lg);
}

.btn-secondary {
    background: var(--light-gray);
    color: var(--dark);
}

.btn-secondary:hover {
    background: #e2e8f0;
}

.btn-danger {
    width: 100%;
    background: var(--danger);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

.auth-switch {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--gray);
}

.auth-switch a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

.auth-switch a:hover {
    text-decoration: underline;
}

.auth-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 0.5rem;
    text-align: center;
    font-weight: 500;
}

.auth-message.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.auth-message.error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.auth-message.hidden {
    display: none;
}

/* Settings Page */
.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.settings-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--success);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 0.75rem;
    box-shadow: 0 8px 20px var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 1000;
    animation: slideIn 0.3s ease;
}

.toast.hidden {
    display: none;
}

.toast svg {
    width: 1.5rem;
    height: 1.5rem;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Responsive */
@media (max-width: 768px) {
    body {
        padding: 1rem;
    }

    .header {
        padding: 1rem;
    }

    .logo h1 {
        font-size: 1.5rem;
    }

    .header-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .nav-menu {
        width: 100%;
        justify-content: space-between;
    }

    .header-status {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
        width: 100%;
    }

    .main-grid {
        grid-template-columns: 1fr;
    }

    .camera-card, .activity-card {
        grid-column: span 1;
    }

    .sensor-grid {
        grid-template-columns: 1fr;
    }

    .settings-grid {
        grid-template-columns: 1fr;
    }

    .auth-card {
        padding: 1.5rem;
    }

    .toast {
        right: 1rem;
        bottom: 1rem;
        left: 1rem;
    }
}

@media (max-width: 480px) {
    .logo {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .nav-menu {
        flex-wrap: wrap;
    }
}

/* Authentication Page */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.auth-container {
    width: 100%;
    max-width: 450px;
    padding: 1rem;
}

.auth-card {
    background: var(--white);
    border-radius: 1.5rem;
    padding: 2.5rem;
    box-shadow: 0 10px 30px var(--shadow-lg);
}

.auth-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.auth-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    background: var(--light-gray);
    border-radius: 0.75rem;
    padding: 0.25rem;
}

.auth-tab, .tab-btn {
    flex: 1;
    padding: 0.75rem 1rem;
    background: transparent;
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    color: var(--gray);
}

.auth-tab.active, .tab-btn.active {
    background: var(--white);
    color: var(--primary);
    box-shadow: 0 2px 4px var(--shadow);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.auth-form h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.5rem;
}

.auth-subtitle {
    color: var(--gray);
    margin-bottom: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: var(--dark);
    font-size: 0.875rem;
}

.form-group input {
    padding: 0.875rem 1rem;
    border: 2px solid var(--border);
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
}

.btn {
    padding: 0.875rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-lg);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-loader {
    display: inline-block;
}

.spinner {
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

.spinner circle {
    stroke: currentColor;
    stroke-dasharray: 50;
    stroke-dashoffset: 25;
    stroke-linecap: round;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.auth-message {
    padding: 0.875rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.auth-message.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.auth-message.error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.message-form textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--border);
    border-radius: 0.5rem;
    resize: vertical;
    font-family: inherit;
    font-size: 0.875rem;
}

.message-form textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.message-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 0.5rem;
}

.char-count {
    font-size: 0.75rem;
    color: var(--gray);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.nav-links {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.nav-link {
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    transition: all 0.3s;
}

.nav-link.active {
    background: var(--primary);
    color: white;
}

.nav-link:hover {
    background: var(--light-gray);
}

.btn-logout {
    padding: 0.5rem;
    background: var(--light-gray);
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.btn-logout svg {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--gray);
}

.btn-logout:hover {
    background: var(--danger);
}

.btn-logout:hover svg {
    color: white;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-name {
    font-weight: 600;
    color: var(--dark);
}