:root {
    --sidebar-width: 260px;
    --sidebar-width-collapsed: 70px;
    --header-height: 70px;
    --bg-dark: #0f172a;
    /* Slate 900 */
    --bg-card: #1e293b;
    /* Slate 800 */
    --text-primary: #f3f6ff;
    --text-muted: #94a3b8;
    --accent-color: #10b981;
    /* Emerald 500 */
    --accent-hover: #059669;
    --border-color: rgba(255, 255, 255, 0.08);
    --transition-speed: 0.3s;
}

body {
    margin: 0 !important;
    padding: 0 !important;
    /* Fix: Remove padding-top from dashboard.css */
    overflow: hidden !important;
    /* Prevent body scroll, handle in main-content */
    background-color: #0b1121;
    /* Dark background matching dashboard */
    width: 100vw;
    height: 100vh;
}

/* App Container */
.app-container {
    display: flex;
    height: 100%;
    width: 100%;
    overflow: hidden;
    position: absolute;
    /* Force it to take full screen relative to viewport */
    top: 0;
    left: 0;
}

/* Sidebar Styling */
.sidebar {
    width: var(--sidebar-width);
    background-color: rgba(15, 23, 42, 0.95);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: width var(--transition-speed) ease;
    z-index: 50;
    backdrop-filter: blur(10px);
}

.sidebar.collapsed {
    width: var(--sidebar-width-collapsed);
}

/* Sidebar Toggle Button */
.sidebar-toggle-btn {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    /* Left align to match nav items */
    padding: 0 20px;
    /* Horizontal padding match, vertical handled by height */
    height: var(--header-height);
    /* Match header height */
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.2s;
    outline: none;
    width: 100%;
    /* Full width */
}

.sidebar-toggle-btn:hover {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.03);
    /* Hover effect like nav items */
}

.sidebar.collapsed .sidebar-toggle-btn {
    justify-content: center;
    padding: 12px 0;
}

/* Navigation Menu */
.sidebar-menu {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 10px 0;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: var(--text-muted);
    text-decoration: none;
    transition: all 0.2s;
    border-left: 3px solid transparent;
    gap: 12px;
    /* Active indicator */
    cursor: pointer;
    background: transparent;
    border: none;
    width: 100%;
    text-align: left;
    font-family: inherit;
    font-size: 0.95rem;
    outline: none;
}

.nav-item:hover {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.03);
}

.nav-item.active {
    color: var(--accent-color);
    background-color: rgba(16, 185, 129, 0.08);
    /* Emerald with opacity */
    border-left-color: var(--accent-color);
}

/* Icons in nav */
.nav-item i {
    margin-right: 12px;
    min-width: 20px;
    /* Fixed width for icon alignment */
}

/* Hide labels when collapsed */
.sidebar.collapsed .nav-item span {
    display: none;
}

.sidebar.collapsed .nav-item {
    justify-content: center;
    padding: 12px 0;
}

.sidebar.collapsed .nav-item i {
    margin-right: 0;
}

/* Tooltip for collapsed state (optional but good UX) */
.sidebar.collapsed .nav-item {
    position: relative;
}

/* Only show tooltip on hover if collapsed */
.sidebar.collapsed .nav-item:hover::after {
    content: attr(data-title);
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    background: var(--bg-card);
    color: var(--text-primary);
    padding: 6px 10px;
    border-radius: 4px;
    white-space: nowrap;
    margin-left: 10px;
    z-index: 100;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    font-size: 0.85rem;
    pointer-events: none;
}

/* Main Content Area */
.main-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
    background: radial-gradient(circle at top right, rgba(16, 185, 129, 0.05), transparent 40%);
}

/* Top Header */
.top-header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 30px;
    background-color: rgba(11, 17, 33, 0.8);
    /* Semi-transparent */
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(8px);
    z-index: 40;
    flex-shrink: 0;

    /* FIX: Override default header styles from dashboard.css */
    position: relative !important;
    width: 100% !important;
    top: auto !important;
    left: auto !important;
    margin: 0 !important;
    box-sizing: border-box;
}

.brand-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.brand-logo span {
    color: var(--accent-color);
}

.header-actions {
    display: flex;
    gap: 15px;
    align-items: center;
}

/* Content Area */
.content-area-scroll {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    scroll-behavior: smooth;
    position: relative;
}

/* Main Content Override */
main {
    padding: 20px !important;
    max-width: 100% !important;
    /* Allow full width usage */
    margin: 0 !important;
    width: 100%;
    box-sizing: border-box;
}

/* Mobile Menu Trigger */
.mobile-menu-trigger {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 1.5rem;
    padding: 5px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -100%;
        /* Hidden off-canvas */
        top: 0;
        bottom: 0;
        height: 100vh;
        width: 80%;
        /* Takes up most of screen */
        max-width: 300px;
        transition: left 0.3s ease;
        box-shadow: 5px 0 15px rgba(0, 0, 0, 0.5);
    }

    .sidebar.mobile-active {
        left: 0;
    }

    .sidebar-toggle-btn {
        display: none;
    }

    .mobile-menu-trigger {
        display: block;
    }

    .overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 45;
        backdrop-filter: blur(2px);
    }

    .overlay.active {
        display: block;
    }

    /* Mobile Content Fix */
    .content-area-scroll {
        padding: 0;
        /* Remove wrapper padding */
    }

    main {
        padding: 10px !important;
        /* Reduce main padding */
    }
}