:root {
    --bg-color: #0f172a;
    --sidebar-bg: #1e293b;
    --card-bg: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
}

.app-container {
    display: flex;
    height: 100%;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background-color: var(--sidebar-bg);
    display: flex;
    flex-direction: column;
    padding: 20px;
    border-right: 1px solid #334155;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent-color);
    margin-bottom: 40px;
}

.nav-links {
    list-style: none;
    flex: 1;
}

.nav-links li {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    margin-bottom: 10px;
    cursor: pointer;
    border-radius: 10px;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.nav-links li:hover, .nav-links li.active {
    background-color: var(--accent-color);
    color: white;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-top: 20px;
    border-top: 1px solid #334155;
}

.user-profile img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-info small {
    color: var(--success-color);
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 20px 40px;
    overflow-y: auto;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.search-bar {
    background-color: var(--sidebar-bg);
    padding: 10px 20px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    width: 300px;
}

.search-bar input {
    background: none;
    border: none;
    color: white;
    outline: none;
    width: 100%;
}

.notifications {
    position: relative;
    cursor: pointer;
    font-size: 1.2rem;
}

.badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background-color: var(--danger-color);
    color: white;
    font-size: 0.7rem;
    padding: 2px 5px;
    border-radius: 50%;
}

/* Dashboard */
.welcome-banner {
    margin-bottom: 30px;
}

.welcome-banner h1 {
    font-size: 2rem;
    margin-bottom: 10px;
}

.ai-badge {
    background: linear-gradient(45deg, var(--accent-color), #8b5cf6);
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 0.8rem;
    vertical-align: middle;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.card {
    background-color: var(--card-bg);
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.card-header {
    margin-bottom: 15px;
    border-bottom: 1px solid #334155;
    padding-bottom: 10px;
}

.card-header h3 {
    color: var(--accent-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Chat Box */
.chat-box {
    height: 200px;
    overflow-y: auto;
    background-color: #0f172a;
    border-radius: 10px;
    padding: 10px;
    margin-bottom: 10px;
}

.message {
    margin-bottom: 10px;
    padding: 8px 12px;
    border-radius: 10px;
    max-width: 80%;
    font-size: 0.9rem;
}

.ai-msg {
    background-color: #334155;
    color: white;
    align-self: flex-start;
}

.user-msg {
    background-color: var(--accent-color);
    color: white;
    margin-left: auto;
    text-align: right;
}

.input-area {
    display: flex;
    gap: 10px;
}

.input-area input {
    flex: 1;
    padding: 10px;
    border-radius: 5px;
    border: none;
    background-color: #334155;
    color: white;
}

.input-area button {
    padding: 10px 15px;
    background-color: var(--accent-color);
    border: none;
    border-radius: 5px;
    color: white;
    cursor: pointer;
}

/* Smart Controls */
.control-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.control-item {
    background-color: #334155;
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.control-item:hover {
    transform: translateY(-2px);
}

.control-item.active {
    background-color: var(--success-color);
    color: white;
}

.control-item i {
    font-size: 1.5rem;
    margin-bottom: 10px;
    display: block;
}

.control-item .status {
    font-size: 0.8rem;
    margin-top: 5px;
    opacity: 0.8;
}

/* Health Chart */
.health-stats canvas {
    max-height: 200px;
}

.health-summary {
    margin-top: 15px;
    font-size: 0.9rem;
}

/* Schedule List */
.schedule-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.schedule-item {
    background-color: var(--card-bg);
    padding: 15px;
    border-radius: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-left: 4px solid var(--accent-color);
}

.schedule-time {
    font-weight: bold;
    color: var(--accent-color);
}