* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

:root {
    --primary: #4fb3ff;
    --primary-dark: #3a8ac2;
    --background: #0a0a0a;
    --surface: #1a1a1a;
    --surface-hover: #252525;
    --text: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --sidebar-width: 250px;
    --success: #4CAF50;
    --warning: #FFC107;
    --danger: #f44336;
}

body {
    background-color: var(--background);
    color: var(--text);
    min-height: 100vh;
    display: flex;
}

.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    padding: 2rem;
    overflow-x: hidden;
    width: 100%;
    box-sizing: border-box;
}

.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background-color: var(--surface);
    padding: 1rem;
    z-index: 1000;
    transition: transform 0.3s ease;
}

.sidebar-header {
    padding: 1rem;
    margin-bottom: 2rem;
}

.sidebar-logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary);
}

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

.nav-link {
    display: flex;
    align-items: center;
    padding: 0.8rem 1rem;
    color: var(--text);
    text-decoration: none;
    border-radius: 8px;
    margin-bottom: 0.5rem;
    transition: background-color 0.3s ease;
}

.nav-link.coming {
    display: flex;
    align-items: center;
    padding: 0.8rem 1rem;
    color: var(--text);
    text-decoration: none;
    border-radius: 8px;
    margin-bottom: 0.5rem;
    opacity: 0.5;
    cursor: not-allowed;
    transition: background-color 0.3s ease;
}

.nav-link i {
    margin-right: 1rem;
    width: 20px;
    text-align: center;
}

.nav-link:hover, .nav-link.active {
    background-color: var(--surface-hover);
    color: var(--primary);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 1001;
    background: var(--surface);
    border: none;
    color: var(--text);
    padding: 0.5rem;
    border-radius: 4px;
    cursor: pointer;
    display: none;
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        box-shadow: none;
        transition: transform 0.3s ease;
        z-index: 999;
    }

    .sidebar.active {
        transform: translateX(0);
        box-shadow: 4px 0 15px rgba(0, 0, 0, 0.3);
    }

    .main-content {
        margin-left: 0;
        padding: 1rem;
        padding-top: 4rem;
    }

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