/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1f4d7a;
    --primary-light: #2f6fa5;
    --secondary-color: #4fb0a5;
    --text-dark: #0f172a;
    --text-gray: #3b4758;
    --text-light: #6b7280;
    --bg-light: #f5f7fb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --accent-green: #4fb0a5;
    --success-color: #22c55e;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
    font-size: 16px;
    letter-spacing: 0.01em;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background-color: rgba(255,255,255,0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 6px 24px rgba(15,23,42,0.06);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 0;
}

.logo {
    font-family: 'Playfair Display', serif;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -0.5px;
}

.main-nav {
    display: flex;
    gap: 2rem;
}

.main-nav a {
    text-decoration: none;
    color: var(--text-gray);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s;
}

.main-nav a:hover {
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #f0f5ff 0%, #e8f0fb 100%);
    padding: 5rem 0 4rem;
}

.hero-content {
    max-width: 960px;
    margin: 0 auto;
    text-align: center;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    padding: 2.5rem 2rem;
    box-shadow: 0 12px 36px rgba(15,23,42,0.08);
}

.hero-badge {
    display: inline-block;
    background: linear-gradient(120deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 0.55rem 1.35rem;
    border-radius: 999px;
    font-size: 0.88rem;
    font-weight: 600;
    margin-bottom: 1.6rem;
    letter-spacing: 0.3px;
    box-shadow: 0 8px 20px rgba(47,111,165,0.25);
}

.hero-title {
    font-family: 'Playfair Display', serif;
    font-size: 2.6rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
    line-height: 1.25;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-gray);
    margin-bottom: 2.2rem;
    font-weight: 400;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 1.2rem;
    flex-wrap: wrap;
    margin-top: 1.6rem;
}

.feature-tag {
    background-color: #f0f4ff;
    padding: 0.55rem 1.15rem;
    border-radius: 999px;
    font-size: 0.92rem;
    color: var(--text-dark);
    border: 1px solid rgba(47,111,165,0.18);
}

/* Product Section */
.product-section {
    padding: 5rem 0;
    background-color: var(--bg-white);
}

.product-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: 0 18px 42px rgba(15,23,42,0.06);
}

.product-images {
    position: static;
}

.single-image {
    background: #f9fbff;
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 1.5rem;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.7);
}

.single-image img {
    width: 100%;
    height: auto;
    object-fit: contain;
}

/* Single image placeholder for product */

.product-info {
    padding-left: 1rem;
}


.product-title {
    font-family: 'Playfair Display', serif;
    font-size: 2.1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1.2rem;
    line-height: 1.25;
}

.product-price {
    margin-bottom: 2rem;
    display: flex;
    align-items: baseline;
    gap: 1rem;
    flex-wrap: wrap;
}

.current-price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -0.5px;
}

.price-note {
    font-size: 0.9rem;
    color: var(--text-light);
}

.product-description {
    margin-bottom: 1.8rem;
    color: var(--text-gray);
    line-height: 1.75;
    font-size: 1.02rem;
}


.product-specs {
    margin-bottom: 2rem;
}

.product-specs h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.specs-list {
    list-style: none;
    padding: 0;
}

.specs-list li {
    padding: 0.6rem 0;
    color: var(--text-gray);
    font-size: 0.95rem;
}

.btn-primary {
    display: inline-block;
    width: 100%;
    padding: 1.15rem 2rem;
    background: linear-gradient(120deg, var(--primary-color), var(--primary-light));
    color: white;
    text-align: center;
    text-decoration: none;
    border-radius: 999px;
    font-weight: 700;
    font-size: 1rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: none;
    cursor: pointer;
    margin-bottom: 1.4rem;
    box-shadow: 0 12px 24px rgba(31,77,122,0.18);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 32px rgba(31,77,122,0.22);
}

.product-guarantee {
    padding: 1.5rem;
    background-color: #f0f4ff;
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.product-guarantee p {
    margin-bottom: 0.5rem;
    color: var(--text-gray);
    font-size: 0.95rem;
}

/* Benefits Section */
.benefits-section {
    padding: 5rem 0;
    background-color: var(--bg-light);
}

.section-title {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.section-intro {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-gray);
    max-width: 800px;
    margin: 0 auto 3rem;
    line-height: 1.8;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.benefit-card {
    background-color: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 12px 28px rgba(15,23,42,0.06);
    border: 1px solid var(--border-color);
    transition: transform 0.3s, box-shadow 0.3s;
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.benefit-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(120deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    box-shadow: 0 10px 20px rgba(47,111,165,0.2);
}

.benefit-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    color: var(--text-dark);
}

.benefit-card p {
    color: var(--text-gray);
    line-height: 1.7;
}

/* How It Works Section */
.how-it-works {
    padding: 5rem 0;
    background-color: var(--bg-white);
}

.comparison-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 3rem;
}

.comparison-item {
    text-align: center;
}

.comparison-item h3 {
    font-size: 1.35rem;
    margin-bottom: 1.2rem;
    color: var(--text-dark);
}

.comparison-image {
    margin-bottom: 1.5rem;
}

.comparison-image img {
    width: 100%;
    max-width: 360px;
    height: auto;
    border-radius: 14px;
    box-shadow: 0 12px 24px rgba(15,23,42,0.08);
    border: 1px solid var(--border-color);
}

.comparison-item p {
    color: var(--text-gray);
    line-height: 1.8;
    font-size: 1.05rem;
}

/* Reviews Section */
.reviews-section {
    padding: 5rem 0;
    background-color: var(--bg-light);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.review-card {
    background-color: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 12px 24px rgba(15,23,42,0.06);
    border: 1px solid var(--border-color);
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.review-name {
    font-weight: 600;
    color: var(--text-dark);
}

.review-stars {
    color: #ffc107;
    font-size: 1rem;
}

.review-text {
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 1rem;
    font-style: italic;
}

.review-date {
    font-size: 0.85rem;
    color: var(--text-light);
}

/* Why Choose Section */
.why-choose {
    padding: 5rem 0;
    background-color: var(--bg-white);
}

.features-list {
    max-width: 900px;
    margin: 3rem auto 0;
}

.feature-item {
    display: flex;
    gap: 2rem;
    margin-bottom: 2.5rem;
    align-items: start;
}

.feature-number {
    width: 52px;
    height: 52px;
    background: linear-gradient(120deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: 0 10px 22px rgba(47,111,165,0.22);
}

.feature-content h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.feature-content p {
    color: var(--text-gray);
    line-height: 1.7;
}

/* Guarantee Section */
.guarantee-section {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f0f7ff 0%, #e9f3ff 100%);
}

.guarantee-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.guarantee-content h2 {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.guarantee-content > p {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.guarantee-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.guarantee-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    justify-content: center;
    background-color: white;
    padding: 1rem;
    border-radius: 12px;
    box-shadow: 0 10px 20px rgba(15,23,42,0.05);
    border: 1px solid var(--border-color);
}

.guarantee-icon {
    color: var(--success-color);
    font-weight: bold;
    font-size: 1.2rem;
}

.guarantee-item span:last-child {
    color: var(--text-gray);
    font-size: 0.95rem;
}

/* FAQ Section */
.faq-section {
    padding: 5rem 0;
    background-color: var(--bg-white);
}

.faq-list {
    max-width: 900px;
    margin: 3rem auto 0;
}

.faq-item {
    background-color: white;
    padding: 1.8rem;
    border-radius: 14px;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 24px rgba(15,23,42,0.05);
}

.faq-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.faq-item p {
    color: var(--text-gray);
    line-height: 1.8;
}

/* Contact Section */
.contact-section {
    padding: 5rem 0;
    background-color: var(--bg-light);
}

.contact-intro {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.contact-item {
    text-align: center;
    background: white;
    padding: 1.25rem 1.5rem;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 20px rgba(15,23,42,0.05);
    min-width: 220px;
}

.contact-item strong {
    display: block;
    font-size: 1rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.contact-item span {
    color: var(--text-gray);
    line-height: 1.8;
}

/* Footer */
.footer {
    background-color: #0f172a;
    color: #cbd5e1;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    color: white;
    font-size: 1.1rem;
    margin-bottom: 1rem;
    font-family: 'Playfair Display', serif;
}

.footer-section p {
    line-height: 1.7;
    margin-bottom: 0.5rem;
    color: #cbd5e1;
}

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

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #1f2937;
    color: #94a3b8;
    font-size: 0.9rem;
}

.health-notice {
    margin-top: 3rem;
    padding: 2rem;
    background-color: rgba(255,255,255,0.06);
    border-radius: 10px;
}

.health-notice h4 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.health-notice p {
    color: #cccccc;
    line-height: 1.8;
    font-size: 0.9rem;
}

/* Legal Pages */
.legal-page {
    padding: 4rem 0;
    min-height: 60vh;
    background-color: var(--bg-white);
}

.legal-page h1 {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.legal-page section {
    margin-bottom: 3rem;
}

.legal-page h2 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
    font-family: 'Playfair Display', serif;
}

.legal-page h3 {
    font-size: 1.4rem;
    margin-bottom: 0.8rem;
    margin-top: 1.5rem;
    color: var(--text-dark);
}

.legal-page p {
    margin-bottom: 1rem;
    color: var(--text-gray);
    line-height: 1.8;
}

.legal-page ul {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

.legal-page ul li {
    margin-bottom: 0.5rem;
    color: var(--text-gray);
}

.legal-page a {
    color: var(--primary-color);
    text-decoration: none;
}

.legal-page a:hover {
    text-decoration: underline;
}

.withdrawal-form {
    background-color: var(--bg-light);
    padding: 2rem;
    border-radius: 8px;
    margin: 2rem 0;
}

.withdrawal-form p {
    margin-bottom: 1rem;
}

/* Responsive Design */
@media (max-width: 968px) {
    .product-layout {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .product-images {
        position: static;
    }

    .comparison-wrapper {
        grid-template-columns: 1fr;
    }

    .header-content {
        flex-direction: column;
        gap: 1rem;
    }

    .main-nav {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }

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

    .section-title {
        font-size: 2rem;
    }

    .product-title {
        font-size: 1.8rem;
    }

    .benefits-grid,
    .reviews-grid {
        grid-template-columns: 1fr;
    }

    .feature-item {
        flex-direction: column;
        text-align: center;
    }

    .contact-info {
        flex-direction: column;
        gap: 2rem;
    }
}