:root {
    --primary-color: #331b5d;
    --primary-dark: #29154b;
    --accent-color: #26834e;
    --secondary-color: #4dd0e1;
    --light-bg: #f8f9fa;
    --success-color: #4caf50;
}

.fs-18{
    font-size: 18px;
}

body {
    font-family: "Sen", sans-serif;
    line-height: 1.6;
    color: #333;
}

/* Header & Navigation */
.navbar {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
}

.navbar-brand {
    font-size: 1.75rem;
    font-weight: bold;
    color: var(--primary-color) !important;
}

.navbar-nav .nav-link {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #333 !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: all 0.3s;
}

.navbar-nav .nav-link::before{
    content: "";
    position: absolute;
    bottom: 5px;
    width: 0px;
    height: 2px;
    background-color: var(--primary-color);
    border-radius: 100px;
    transition: all 0.3s;
}

.navbar-nav .nav-link:hover {
    transform: translateY(-3px);
    color: var(--primary-color) !important;
}

.navbar-nav .nav-link:hover::before {
    width: 50%;
}

.navbar-toggler {
    border: none;
    padding: 0.5rem;
}

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

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%2300377B' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Mobile Menu */
@media (max-width: 991.98px) {
    .navbar-collapse {
        background-color: #fff;
        padding: 1rem;
        border-radius: 8px;
        margin-top: 1rem;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }

    .navbar-nav .nav-link {
        padding: 0.75rem 1rem !important;
        border-bottom: 1px solid #f0f0f0;
    }

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #ede8f5 0%, #ddd4f0 100%);
    padding: 4rem 0;
}

.hero h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    line-height: 1.2;
    font-weight: bold;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #555;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.hero-description {
    font-size: 18px;
    color: #666;
    margin-bottom: 1.25rem;
    line-height: 1.8;
}

.hero-tech {
    font-weight: 600;
    color: var(--primary-color);
}

@media (max-width: 767.98px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }
}

/* Product Image */
.product-image {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.15));
}

/* Benefits Section */
.benefits {
    background-color: var(--light-bg);
    padding: 4rem 0;
}

.section-title {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 3rem;
    text-align: center;
    font-weight: bold;
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--accent-color);
    border-radius: 2px;
}

.benefit-item {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    display: flex;
    align-items: center;
    gap: 1rem;
    height: 100%;
    transition: transform 0.3s, box-shadow 0.3s;
}

.benefit-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 15px rgba(194, 14, 26, 0.15);
    border-left: 4px solid var(--accent-color);
}

.checkmark {
    color: var(--accent-color);
    font-size: 1.5rem;
    font-weight: bold;
    flex-shrink: 0;
}

.benefit-text {
    font-size: 18px;
    color: #555;
    line-height: 1.6;
    margin: 0;
}

/* Product Info Section */
.product-info {
    padding: 4rem 0;
    background-color: #fff;
}

.info-box {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: 8px;
    height: 100%;
}

.info-box h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-weight: bold;
}

.info-box h4 {
    font-size: 1.125rem;
    color: #333;
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.info-box ul {
    list-style: none;
    padding-left: 0;
}

.info-box ul li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: #555;
    line-height: 1.6;
}

.info-box ul li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.25rem;
}

.info-box p {
    color: #555;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.warning-box {
    background: #fff3cd;
    border-left: 4px solid var(--accent-color);
    padding: 1.25rem;
    margin-top: 1.25rem;
    border-radius: 4px;
}

.warning-box strong {
    color: #721c24;
    display: block;
    margin-bottom: 0.75rem;
}

.warning-box ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: 0;
}

.warning-box ul li {
    padding: 0.25rem 0;
    padding-left: 1.25rem;
    position: relative;
    color: #721c24;
}

.warning-box ul li:before {
    content: "⚠";
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

/* FAQ Section */
.faq {
    background-color: #fff;
    padding: 4rem 0;
}

.accordion-item {
    border: none;
    margin-bottom: 1rem;
    border-radius: 8px !important;
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.08);
}

.accordion-button {
    font-size: 1.125rem;
    font-weight: 600;
    color: #333;
    background-color: #fff;
    padding: 1.25rem 1.5rem;
}

.accordion-button:not(.collapsed) {
    background-color: #f8f9fa;
    color: var(--primary-color);
    box-shadow: none;
}

.accordion-button:focus {
    box-shadow: none;
    border-color: transparent;
}

.accordion-button::after {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2300377B'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}

.accordion-body {
    padding: 1.5rem;
    color: #555;
    line-height: 1.8;
}

/* Ingredients Section */
.ingredients {
    padding: 4rem 0;
    background-color: var(--light-bg);
}

.ingredient-box {
    background: #fff;
    padding: 2rem;
    border-radius: 8px;
    margin-bottom: 2rem;
}

.ingredient-box h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1.25rem;
    font-weight: bold;
}

.ingredient-box p {
    color: #555;
    line-height: 1.8;
    margin-bottom: 0.75rem;
}

/* Footer */
footer {
    background: linear-gradient(135deg, #331b5d 0%, #402869 100%);
    color: #fff;
    padding: 3rem 0 1.5rem;
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--accent-color);
}

footer h3 {
    font-size: 1.25rem;
    margin-bottom: 1.25rem;
    color: #fff;
}

footer p {
    color: #999;
}

.footer-links {
    list-style: none;
    padding-left: 0;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #fff;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #333;
    color: #999;
    font-size: 0.875rem;
    margin-top: 2rem;
}

.regulatory-info {
    margin-top: 1rem;
    font-size: 0.8125rem;
}

/* Tearshield Technology Section */
.tearshield {
    padding: 4rem 0;
    background: linear-gradient(135deg, #f5f0ff 0%, #ede8fa 100%);
}

.tearshield-shield {
    display: flex;
    justify-content: center;
    align-items: center;
}

.shield-svg {
    width: 160px;
    height: 190px;
    filter: drop-shadow(0 8px 24px rgba(51, 27, 93, 0.18));
}

.tearshield-content h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: bold;
    margin-bottom: 1rem;
}

.tearshield-content p {
    color: #555;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.tearshield-layers {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1.5rem;
    padding: 1.25rem 1.5rem;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(51, 27, 93, 0.08);
}

.layer-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #444;
    font-size: 0.95rem;
}

.layer-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* Navbar sub-logo */
.navbar-sub-logo {
    display: block;
    text-align: center;
    margin-top: 0.25rem;
    opacity: 0.75;
}

/* Utility Classes */
.text-primary-custom {
    color: var(--primary-color) !important;
}

.bg-primary-custom {
    background-color: var(--primary-color) !important;
}