:root {
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --secondary: #10b981;
    --dark: #0f172a;
    --light: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --white: #ffffff;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

body {
    background-color: var(--gray-100);
    color: var(--gray-800);
    font-family: 'Outfit', sans-serif;
}

.premium-card {
    background: var(--white);
    border-radius: 1rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-200);
    transition: all 0.3s ease;
}

.premium-card:hover {
    box-shadow: var(--shadow-lg);
}

.btn-premium {
    background: var(--primary);
    color: white;
    border-radius: 0.5rem;
    padding: 0.6rem 1.5rem;
    font-weight: 600;
    transition: all 0.2s;
    border: none;
}

.btn-premium:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    color: white;
}

.glass-nav {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
}

.hero-section {
    background: linear-gradient(135deg, var(--dark) 0%, #1e1b4b 100%);
    color: white;
    padding: 5rem 0;
}

@media (max-width: 991.98px) {
    .hero-section {
        padding: 3rem 0;
    }

    .hero-section h1 {
        font-size: 2.5rem;
    }
}

.nav-link-premium {
    color: var(--gray-700);
    font-weight: 500;
    margin: 0 1rem;
    transition: color 0.2s;
}

@media (max-width: 991.98px) {
    .nav-link-premium {
        margin: 0.5rem 0;
        padding: 0.75rem 1rem;
        background: var(--gray-100);
        border-radius: 0.5rem;
    }
}

.nav-link-premium:hover {
    color: var(--primary);
}

/* Custom Premium Toggler */
.navbar-toggler {
    border: none !important;
    padding: 0.5rem;
    transition: transform 0.3s ease;
}

.navbar-toggler:focus {
    box-shadow: none !important;
}

.navbar-toggler-icon {
    background-image: none !important;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 24px;
    height: 24px;
    position: relative;
}

.navbar-toggler-icon::before,
.navbar-toggler-icon::after,
.navbar-toggler-icon span {
    content: "";
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--primary);
    border-radius: 2px;
    transition: all 0.3s ease;
    position: absolute;
}

.navbar-toggler-icon span {
    top: 50%;
    transform: translateY(-50%);
}

.navbar-toggler-icon::before {
    top: 0;
}

.navbar-toggler-icon::after {
    bottom: 0;
}

/* Animation for X state */
.navbar-toggler:not(.collapsed) .navbar-toggler-icon span {
    opacity: 0;
}

.navbar-toggler:not(.collapsed) .navbar-toggler-icon::before {
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
}

.navbar-toggler:not(.collapsed) .navbar-toggler-icon::after {
    bottom: 50%;
    transform: translateY(50%) rotate(-45deg);
}

@media (max-width: 991.98px) {
    .navbar-collapse {
        margin-top: 0.75rem;
        padding: 0;
        /* Professional edge-to-edge list look */
        background: white;
        border-radius: 1rem;
        box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
        border: 1px solid rgba(0, 0, 0, 0.05);
        overflow: hidden;
        transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    }

    .navbar-nav {
        padding: 0.5rem 0;
    }

    .nav-item {
        width: 100%;
        opacity: 0;
        transform: translateY(10px);
    }

    .nav-link-premium {
        margin: 0 !important;
        padding: 1rem 1.5rem !important;
        display: flex;
        align-items: center;
        background: transparent !important;
        border-radius: 0;
        font-size: 1rem;
        font-weight: 500;
        color: var(--gray-700);
        border-bottom: 1px solid var(--gray-100);
        transition: all 0.2s ease;
    }

    .nav-item:last-child .nav-link-premium {
        border-bottom: none;
    }

    .nav-link-premium:hover,
    .nav-link-premium:active {
        background: var(--gray-100) !important;
        color: var(--primary) !important;
        padding-left: 1.75rem !important;
    }

    .nav-link-premium::before {
        content: "\F138";
        font-family: "bootstrap-icons";
        margin-right: 0.75rem;
        font-size: 0.8rem;
        opacity: 0.5;
    }

    .navbar-collapse.show {
        animation: premiumMenuSlide 0.35s cubic-bezier(0.165, 0.84, 0.44, 1) forwards;
    }

    @keyframes premiumMenuSlide {
        from {
            opacity: 0;
            transform: translateY(-10px);
        }

        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .navbar-collapse.show .nav-item {
        animation: itemSlideIn 0.4s cubic-bezier(0.165, 0.84, 0.44, 1) forwards;
    }

    @keyframes itemSlideIn {
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .navbar-collapse.show .nav-item:nth-child(1) {
        animation-delay: 0.05s;
    }

    .navbar-collapse.show .nav-item:nth-child(2) {
        animation-delay: 0.1s;
    }

    .navbar-collapse.show .nav-item:nth-child(3) {
        animation-delay: 0.15s;
    }

    .navbar-collapse.show .nav-item:nth-child(4) {
        animation-delay: 0.2s;
    }
}

/* Generator styles */
.barcode-preview-container {
    min-height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    border: 1px solid var(--gray-200);
    border-radius: 1rem;
    margin-bottom: 1.5rem;
    padding: 2rem;
}

#barcode-rendered {
    max-width: 100%;
}

@media print {
    body {
        background: white !important;
        margin: 0 !important;
        padding: 0 !important;
    }

    nav,
    .navbar,
    footer,
    .btn,
    .alert,
    .premium-card:not(.print-inclusive),
    .no-print {
        display: none !important;
    }

    .print-area {
        display: block !important;
        width: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
    }
}

/* Base Responsive Utilities */
@media (max-width: 576px) {
    .container {
        padding-left: 1.25rem;
        padding-right: 1.25rem;
    }

    .premium-card {
        padding: 1.5rem !important;
    }
}

/* Sticky top refinement for mobile */
@media (max-width: 991.98px) {
    .sticky-top {
        position: relative !important;
        top: 0 !important;
    }
}