/* Variables */
:root {
    --bg-color: hsl(220, 15%, 12%);
    --text-color: hsl(210, 20%, 80%);
    --primary-color: hsl(200, 70%, 50%);
    --secondary-color: hsl(250, 40%, 60%);
    --card-bg: rgba(30, 40, 50, 0.6);
    --border-color: rgba(255, 255, 255, 0.1);
    --hover-color: hsl(200, 70%, 40%);
    --dropdown-bg: rgba(40, 50, 60, 0.9);
}

[data-theme="light"] {
    --bg-color: hsl(0, 0%, 95%);
    --text-color: hsl(0, 0%, 20%);
    --primary-color: hsl(200, 70%, 50%);
    --secondary-color: hsl(250, 40%, 60%);
    --card-bg: rgba(255, 255, 255, 0.8);
    --border-color: rgba(0, 0, 0, 0.1);
    --hover-color: hsl(200, 70%, 40%);
    --dropdown-bg: rgba(255, 255, 255, 0.9);
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    display: flex;
    min-height: 100vh;
    transition: background-color 0.3s ease-out, color 0.3s ease-out;
}

.dashboard-container {
    display: flex;
    width: 100%;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background-color: var(--card-bg);
    padding: 20px;
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.sidebar .logo {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2em;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 30px;
    text-align: center;
}

.sidebar .main-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar .main-nav li {
    margin-bottom: 10px;
}

.sidebar .main-nav a {
    color: var(--text-color);
    text-decoration: none;
    padding: 10px 15px;
    display: block;
    border-radius: 8px;
    transition: background-color 0.3s ease-out, color 0.3s ease-out;
}

.sidebar .main-nav a:hover, 
.sidebar .main-nav li.active a {
    background-color: var(--primary-color);
    color: #fff;
}

/* Main Content */
.main-content {
    flex-grow: 1;
    padding: 20px;
}

/* Topbar */
.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    background-color: var(--card-bg);
    padding: 15px 20px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
}

.topbar .search-bar input {
    width: 300px;
    padding: 10px 15px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-color);
    font-size: 1em;
    transition: border-color 0.3s ease-out;
}

.topbar .search-bar input::placeholder {
    color: var(--text-color);
    opacity: 0.7;
}

.topbar .search-bar input:focus {
    border-color: var(--primary-color);
    outline: none;
}

.topbar .user-info {
    display: flex;
    align-items: center;
    gap: 20px;
    position: relative;
}

.topbar .notifications, .topbar .user-avatar {
    cursor: pointer;
    position: relative;
}

.topbar .bell-icon {
    font-size: 1.5em;
}

.topbar .user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-color);
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 600;
    color: #fff;
    font-size: 0.9em;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--dropdown-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    min-width: 200px;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity 0.3s ease-out, transform 0.3s ease-out, visibility 0.3s;
    padding: 10px 0;
}

.dropdown-menu.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu .dropdown-header {
    padding: 8px 15px;
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 5px;
}

.dropdown-menu ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.dropdown-menu ul li {
    padding: 8px 15px;
    cursor: pointer;
    transition: background-color 0.2s ease-out;
}

.dropdown-menu ul li:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.dropdown-menu .dropdown-footer {
    padding: 8px 15px;
    border-top: 1px solid var(--border-color);
    margin-top: 5px;
    text-align: center;
    cursor: pointer;
    color: var(--primary-color);
}

/* Dashboard Panels */
.dashboard-panel {
    display: none;
    animation: fadeIn 0.5s ease-out;
}

.dashboard-panel.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

h1 {
    font-family: 'Poppins', sans-serif;
    font-size: 2.2em;
    margin-bottom: 30px;
    color: var(--text-color);
}

/* KPI Cards */
.kpi-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.kpi-cards .card {
    background-color: var(--card-bg);
    padding: 25px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-align: center;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: transform 0.2s ease-out;
}

.kpi-cards .card:hover {
    transform: translateY(-5px);
}

.kpi-cards .card h3 {
    margin-top: 0;
    font-size: 1.2em;
    color: var(--primary-color);
}

.kpi-cards .card p {
    font-size: 2.5em;
    font-weight: 700;
    margin-bottom: 0;
    color: var(--text-color);
}

/* Charts */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.chart-card {
    background-color: var(--card-bg);
    padding: 25px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.chart-card h3 {
    margin-top: 0;
    margin-bottom: 20px;
    color: var(--primary-color);
}

/* Data Table */
.data-table {
    background-color: var(--card-bg);
    padding: 25px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    overflow-x: auto;
}

.data-table h2 {
    margin-top: 0;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.data-table table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th, .data-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background-color: rgba(255, 255, 255, 0.05);
    font-weight: 600;
    color: var(--primary-color);
    text-transform: uppercase;
    font-size: 0.9em;
}

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

/* Mobile Responsiveness */
.hamburger-menu {
    display: none; /* Hidden by default */
    cursor: pointer;
    font-size: 2em;
    color: var(--text-color);
    order: 2; /* Position after logo on mobile */
}

@media (max-width: 768px) {
    .sidebar {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
    .sidebar .logo {
        margin-bottom: 0;
    }
    .sidebar .main-nav {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 60px; /* Below the header */
        left: 0;
        width: 100%;
        background-color: var(--card-bg);
        border-top: 1px solid var(--border-color);
        padding: 10px 0;
    }
    .sidebar.active .main-nav {
        display: flex;
    }
    .hamburger-menu {
        display: block; /* Show on mobile */
    }
}


@media (max-width: 1024px) {
    .sidebar {
        width: 200px;
    }

    .topbar .search-bar input {
        width: 200px;
    }
}

@media (max-width: 768px) {
    .dashboard-container {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        height: 60px;
        padding: 10px 20px;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        position: fixed;
        top: 0;
        left: 0;
        z-index: 1001;
    }

    .sidebar .logo {
        margin-bottom: 0;
    }

    .sidebar .main-nav {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 60px;
        left: 0;
        width: 100%;
        background-color: var(--card-bg);
        border-top: 1px solid var(--border-color);
        padding: 10px 0;
    }

    .sidebar.active .main-nav {
        display: flex;
    }

    .sidebar .main-nav ul {
        text-align: center;
    }

    .hamburger-menu {
        display: block;
    }

    .main-content {
        padding-top: 80px; /* Offset for fixed sidebar */
    }

    .topbar {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .topbar .search-bar input {
        width: 100%;
    }

    .topbar .user-info {
        width: 100%;
        justify-content: flex-end;
    }

    .kpi-cards, .charts-grid {
        grid-template-columns: 1fr;
    }
}