:root {
            --primary-color: #e74c3c; /* Warm red for energy */
            --primary-light: #c0392b;
            --secondary-color: #27ae60; /* Fresh green for ingredients */
            --accent-color: #f39c12; /* Golden orange for highlights */
            --light-color: #fdfdfd; /* Soft off-white bg */
            --dark-color: #2c3e50; /* Deep navy for text */
            --text-color: #34495e; /* Muted blue-gray */
            --border-radius: 12px;
            --box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
        }
        body {
            font-family: 'Inter', sans-serif;
            background-color: var(--light-color);
            color: var(--text-color);
            line-height: 1.7;
            overflow-x: hidden;
        }
        .app-container {
            max-width: 1400px;
            margin: 0 auto;
            background: white;
            min-height: 100vh;
            box-shadow: 0 0 40px rgba(0, 0, 0, 0.05);
            border-radius: 0 0 16px 16px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }
        /* Header */
        .app-header {
            background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
            color: white;
            padding: 1rem 2rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
            width: 100%;
        }
        .app-header .header-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .app-logo {
            font-family: 'Playfair Display', serif;
            font-size: 1.8rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
            letter-spacing: -0.5px;
        }
        .app-logo i {
            font-size: 1.8rem;
            background: linear-gradient(135deg, #fff, #ffd8c9);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .app-logo:hover {
            transform: translateY(-2px);
        }
        .tagline {
            font-size: 0.9rem;
            opacity: 0.9;
            font-style: italic;
            margin: 0;
        }
        /* Hamburger Menu */
        .hamburger-btn {
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.5rem;
            border-radius: 4px;
            transition: var(--transition);
            display: none;
        }
        .hamburger-btn:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        /* Search */
        .search-container {
            position: relative;
            flex-grow: 1;
            max-width: 400px;
            margin: 0 1rem;
        }
        .search-input {
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 50px;
            padding: 0.5rem 1rem 0.5rem 2.5rem;
            background: rgba(255, 255, 255, 0.15);
            color: white;
            width: 100%;
        }
        .search-input::placeholder {
            color: rgba(255, 255, 255, 0.7);
        }
        .search-input:focus {
            background: rgba(255, 255, 255, 0.25);
            border-color: rgba(255, 255, 255, 0.6);
            box-shadow: 0 0 0 0.2rem rgba(255, 255, 255, 0.2);
        }
        .search-icon {
            position: absolute;
            left: 1rem;
            top: 50%;
            transform: translateY(-50%);
            color: rgba(255, 255, 255, 0.8);
        }
        /* User Profile */
        .user-profile {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .user-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-color), var(--secondary-color));
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .user-avatar:hover {
            transform: scale(1.05);
        }
        /* Main Wrapper */
        .main-wrapper {
            display: flex;
            flex-grow: 1;
        }
        /* Sidebar */
        .app-sidebar {
            background: white;
            padding: 2rem 1rem;
            border-right: 1px solid #f0f0f0;
            width: 280px;
            flex-shrink: 0;
            transition: var(--transition);
            overflow-y: auto;
            z-index: 999;
        }
        .app-sidebar .nav-link {
            color: var(--text-color);
            padding: 0.75rem 1rem;
            margin-bottom: 0.5rem;
            border-radius: var(--border-radius);
            display: flex;
            align-items: center;
            gap: 0.75rem;
            transition: var(--transition);
            font-weight: 500;
        }
        .app-sidebar .nav-link:hover, .app-sidebar .nav-link.active {
            background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
            color: white;
            transform: translateX(5px);
        }
        .app-sidebar .nav-link i {
            width: 20px;
            text-align: center;
        }
        .sidebar-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid #f0f0f0;
        }
        .sidebar-close {
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-color);
            cursor: pointer;
            display: none;
        }
        .recipe-stats {
            margin-top: 2rem;
            padding: 1.5rem;
            background: linear-gradient(135deg, #f8f9fa, #e9ecef);
            border-radius: var(--border-radius);
            border: 1px solid #dee2e6;
        }
        .stat-item {
            display: flex;
            justify-content: space-between;
            padding: 0.5rem 0;
            font-size: 0.9rem;
        }
        .stat-value {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--accent-color);
        }
        /* Main Content */
        .app-main {
            flex: 1;
            padding: 1rem;
            overflow-y: auto;
            background: #f8f9fa;
            display: flex;
            flex-direction: column;
            /* justify-content: center; */
            align-items: center;
            text-align: center;
        }
        .welcome-section {
            max-width: 600px;
            padding: 2rem;
        }
        .welcome-icon {
            font-size: 4rem;
            color: var(--primary-color);
            margin-bottom: 1.5rem;
        }
        .welcome-title {
            font-family: 'Playfair Display', serif;
            font-size: 2.5rem;
            font-weight: 600;
            color: var(--dark-color);
            margin-bottom: 1rem;
        }
        .welcome-text {
            font-size: 1.1rem;
            color: var(--text-color);
            margin-bottom: 2rem;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
            border: none;
            border-radius: 8px;
            padding: 0.75rem 1.5rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(231, 76, 60, 0.4);
        }

        .floating-action-btn {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent) 0%, #e20808 100%);
            color: rgb(247, 52, 52);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            box-shadow: 0 5px 20px rgba(255, 126, 95, 0.4);
            z-index: 100;
            transition: all 0.3s;
        }
        
        .floating-action-btn:hover {
            transform: translateY(-5px) rotate(90deg);
            box-shadow: 0 10px 25px rgba(240, 59, 14, 0.5);
            color: rgb(234, 31, 31);
        }
        /* Mobile Overlay */
        .mobile-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            z-index: 998;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s, visibility 0.3s;
        }
        .mobile-overlay.active {
            opacity: 1;
            visibility: visible;
        }
        /* Responsive */
        @media (max-width: 991.99px) {
            .app-sidebar {
                width: 250px;
            }
        }
        @media (max-width: 767.99px) {
            .hamburger-btn {
                display: block;
            }
            .app-sidebar {
                position: fixed;
                top: 0;
                left: 0;
                height: 100vh;
                width: 75%;
                transform: translateX(-100%);
                z-index: 1001;
                border-right: none;
                border-bottom: none;
                padding-top: 1rem;
            }
            .app-sidebar.mobile-open {
                transform: translateX(0);
            }
            .sidebar-close {
                display: block;
            }
            .main-wrapper {
                flex-direction: column;
            }
            .app-main {
                padding:.5rem;
            }
            .welcome-title {
                font-size: 2rem;
            }
            .welcome-icon {
                font-size: 3rem;
            }
            body.mobile-menu-open {
                overflow: hidden;
            }
        }
        @media (max-width: 575.99px) {
            .app-header {
                padding: 1rem;
            }
            .app-header .header-content {
                flex-direction: column;
                gap: 0.5rem;
                text-align:;
            }
            .app-logo {
                font-size: 1.5rem;
                justify-content: center;
            }
            .tagline {
                display: block;
            }
            .search-container {
                max-width: 100%;
                order: -1;
                width: 100%;
                margin: 0.5rem 0;
            }
            .user-profile {
                order: 1;
            }
            .app-main {
                padding: .5rem;
            }
            .app-sidebar {
                width: 85%;
            }
            .welcome-title {
                font-size: 1.8rem;
            }
            .welcome-text {
                font-size: 1rem;
            }
            .floating-action-btn {
                bottom: 20px;
                right: 20px;
                width: 50px;
                height: 50px;
                font-size: 1.2rem;
            }
        }