/* ==========================================
   SOFON - PROFESSIONAL NERVE SUPPORT LANDING PAGE
   Mobile-First Responsive Design
   ========================================== */

/* CSS Variables */
:root {
    /* Medical Professional Color Scheme */
    --primary: #0A2463;
    --primary-light: #3E92CC;
    --primary-dark: #001633;
    --accent: #F4A259;
    --accent-light: #FFB067;
    --success: #10B981;
    --white: #FFFFFF;
    --light-gray: #F8F9FA;
    --gray: #6B7280;
    --dark-gray: #374151;
    --black: #1F2937;
    
    /* Typography */
    --font-display: 'Montserrat', sans-serif;
    --font-body: 'Source Sans Pro', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(10, 36, 99, 0.08);
    --shadow-md: 0 4px 16px rgba(10, 36, 99, 0.12);
    --shadow-lg: 0 8px 32px rgba(10, 36, 99, 0.16);
    --shadow-xl: 0 16px 48px rgba(10, 36, 99, 0.2);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ==========================================
   RESET & BASE STYLES
   ========================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--dark-gray);
    background: var(--white);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    font-family: inherit;
    border: none;
    background: none;
    cursor: pointer;
}

ul {
    list-style: none;
}

/* ==========================================
   CONTAINER
   ========================================== */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

@media (min-width: 768px) {
    .container {
        padding: 0 40px;
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 60px;
    }
}

/* ==========================================
   TYPOGRAPHY
   ========================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 28px;
}

h2 {
    font-size: 24px;
}

h3 {
    font-size: 20px;
}

@media (min-width: 768px) {
    h1 {
        font-size: 40px;
    }
    
    h2 {
        font-size: 32px;
    }
    
    h3 {
        font-size: 24px;
    }
}

@media (min-width: 1024px) {
    h1 {
        font-size: 48px;
    }
    
    h2 {
        font-size: 36px;
    }
    
    h3 {
        font-size: 26px;
    }
}

p {
    margin-bottom: var(--spacing-sm);
}

/* ==========================================
   SECTION TITLES
   ========================================== */

.section-title {
    text-align: center;
    font-size: 28px;
    font-weight: 800;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    margin: var(--spacing-md) auto 0;
    border-radius: 2px;
}

@media (min-width: 768px) {
    .section-title {
        font-size: 36px;
    }
}

/* ==========================================
   BUTTONS
   ========================================== */

.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 32px;
    min-height: 56px;
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 700;
    color: var(--white);
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    text-align: center;
    border: none;
    cursor: pointer;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.cta-button:active {
    transform: scale(0.98);
}

@media (max-width: 767px) {
    .cta-button {
        width: 100%;
        padding: 18px 24px;
    }
}

/* ==========================================
   PURCHASE NOTIFICATION
   ========================================== */

.purchase-notification {
    position: fixed;
    bottom: 20px;
    left: 20px;
    right: 20px;
    background: var(--white);
    padding: 16px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 9999;
    transform: translateY(200px);
    opacity: 0;
    transition: all var(--transition-base);
}

.purchase-notification.show {
    transform: translateY(0);
    opacity: 1;
}

.notification-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.notification-icon {
    font-size: 24px;
}

.notification-text {
    font-size: 14px;
    line-height: 1.4;
}

.notification-text strong {
    color: var(--primary);
}

@media (min-width: 576px) {
    .purchase-notification {
        left: auto;
        right: 20px;
        max-width: 350px;
    }
}

/* ==========================================
   NAVIGATION
   ========================================== */

.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all var(--transition-base);
}

.main-nav.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.logo a {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 800;
    color: var(--primary);
}

.logo-dot {
    color: var(--accent);
}

.nav-links {
    display: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-links a {
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 600;
    color: var(--dark-gray);
    transition: color var(--transition-fast);
}

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

.nav-cta {
    padding: 10px 20px;
    background: var(--accent);
    color: var(--white) !important;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav-cta:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 4px;
    width: 30px;
    height: 30px;
    justify-content: center;
    cursor: pointer;
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Menu */
@media (max-width: 767px) {
    .nav-links {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--white);
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        transform: translateX(-100%);
        transition: transform var(--transition-base);
    }
    
    .nav-links.active {
        display: flex;
        transform: translateX(0);
    }
    
    .nav-links a {
        width: 100%;
        padding: var(--spacing-sm) 0;
        text-align: center;
        border-bottom: 1px solid var(--light-gray);
    }
    
    .nav-cta {
        border-bottom: none;
        text-align: center;
    }
}

@media (min-width: 768px) {
    .mobile-menu-toggle {
        display: none;
    }
    
    .nav-links {
        display: flex;
    }
}

/* ==========================================
   HERO SECTION
   ========================================== */

.hero-section {
    padding: 100px 0 60px;
    background: linear-gradient(135deg, #F0F7FF 0%, #FFFFFF 100%);
    overflow: hidden;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-image {
    position: relative;
    width: 100%;
    max-width: 400px;
    animation: fadeInUp 0.8s ease;
}

.hero-image img {
    width: 100%;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(2deg);
    }
}

.floating-badge {
    position: absolute;
    padding: 8px 16px;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    font-family: var(--font-display);
    font-size: 12px;
    font-weight: 700;
    color: var(--primary);
    animation: pulse 2s ease-in-out infinite;
}

.badge-1 {
    top: 10%;
    right: -10px;
    animation-delay: 0s;
}

.badge-2 {
    bottom: 15%;
    left: -10px;
    animation-delay: 1s;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.glow-effect {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(62, 146, 204, 0.2), transparent 70%);
    animation: glow 3s ease-in-out infinite;
    z-index: -1;
}

@keyframes glow {
    0%, 100% {
        opacity: 0.5;
    }
    50% {
        opacity: 1;
    }
}

.hero-text {
    text-align: center;
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero-text h1 {
    margin-bottom: var(--spacing-md);
}

.highlight {
    color: var(--primary);
    position: relative;
    display: inline-block;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 2px;
}

.hero-description {
    font-size: 18px;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-md);
}

.hero-subtext {
    font-size: 16px;
    color: var(--gray);
    margin-bottom: var(--spacing-lg);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.stat-number {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 800;
    color: var(--primary);
}

.stat-label {
    font-size: 12px;
    color: var(--gray);
    text-align: center;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (min-width: 768px) {
    .hero-section {
        padding: 120px 0 80px;
    }
    
    .hero-content {
        flex-direction: row;
        text-align: left;
    }
    
    .hero-text {
        text-align: left;
    }
    
    .hero-image {
        max-width: 500px;
    }
    
    .hero-description {
        font-size: 20px;
    }
    
    .stat-number {
        font-size: 28px;
    }
    
    .stat-label {
        font-size: 14px;
    }
}

/* ==========================================
   WHY CHOOSE SECTION
   ========================================== */

.why-choose-section {
    padding: 60px 0;
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.feature-card {
    padding: var(--spacing-lg);
    background: var(--light-gray);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.feature-card h3 {
    font-size: 20px;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    font-size: 15px;
    color: var(--gray);
    margin: 0;
}

@media (min-width: 576px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .features-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ==========================================
   WHAT IS SECTION
   ========================================== */

.what-is-section {
    padding: 60px 0;
    background: linear-gradient(135deg, #F0F7FF 0%, #FFFFFF 100%);
}

.what-is-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    align-items: center;
}

.what-is-image {
    width: 100%;
    max-width: 500px;
}

.what-is-image img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.what-is-text h2 {
    color: var(--primary-dark);
}

.what-is-text p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-md);
}

@media (min-width: 768px) {
    .what-is-content {
        flex-direction: row;
    }
    
    .what-is-text {
        flex: 1;
    }
    
    .what-is-image {
        flex: 1;
    }
}

/* ==========================================
   HOW IT WORKS SECTION
   ========================================== */

.how-it-works-section {
    padding: 60px 0;
    background: var(--white);
}

.accordion {
    max-width: 900px;
    margin: 0 auto;
}

.accordion-item {
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.accordion-item:hover {
    box-shadow: var(--shadow-md);
}

.accordion-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    width: 100%;
    padding: 20px;
    background: var(--light-gray);
    border: none;
    cursor: pointer;
    text-align: left;
    min-height: 60px;
    transition: all var(--transition-base);
}

.accordion-header:hover {
    background: #E8F2FF;
}

.accordion-number {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 800;
    color: var(--primary);
    min-width: 40px;
}

.accordion-title {
    flex: 1;
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 700;
    color: var(--primary-dark);
}

.accordion-icon {
    font-size: 24px;
    color: var(--primary);
    transition: transform var(--transition-base);
}

.accordion-item.active .accordion-icon {
    transform: rotate(45deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
}

.accordion-item.active .accordion-content {
    max-height: 500px;
}

.accordion-content p {
    padding: 20px;
    font-size: 15px;
    line-height: 1.7;
    color: var(--dark-gray);
    background: var(--white);
    margin: 0;
}

@media (min-width: 768px) {
    .accordion-title {
        font-size: 18px;
    }
    
    .accordion-content p {
        font-size: 16px;
    }
}

/* ==========================================
   REVIEWS SECTION
   ========================================== */

.reviews-section {
    padding: 60px 0;
    background: linear-gradient(135deg, #F0F7FF 0%, #FFFFFF 100%);
}

.reviews-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.review-card {
    padding: var(--spacing-lg);
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    animation: fadeInUp 0.6s ease backwards;
}

.review-card:nth-child(1) {
    animation-delay: 0.1s;
}

.review-card:nth-child(2) {
    animation-delay: 0.2s;
}

.review-card:nth-child(3) {
    animation-delay: 0.3s;
}

.review-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.review-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.reviewer-photo {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary-light);
}

.reviewer-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 4px;
}

.reviewer-location {
    font-size: 14px;
    color: var(--gray);
}

.rating {
    font-size: 20px;
    margin-bottom: var(--spacing-sm);
}

.review-text {
    font-size: 15px;
    line-height: 1.7;
    color: var(--dark-gray);
    font-style: italic;
    margin: 0;
}

@media (min-width: 768px) {
    .reviews-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ==========================================
   PRICING SECTION
   ========================================== */

.pricing-section {
    padding: 60px 0;
    background: var(--white);
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--spacing-xxl);
}

.pricing-subtitle {
    font-size: 18px;
    color: var(--gray);
    margin-bottom: var(--spacing-xl);
}

.countdown-timer {
    display: inline-block;
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.timer-label {
    font-size: 14px;
    color: var(--white);
    margin-bottom: var(--spacing-sm);
    text-align: center;
    opacity: 0.9;
}

.timer-display {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.timer-unit {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.timer-number {
    font-family: var(--font-display);
    font-size: 36px;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
}

.timer-text {
    font-size: 12px;
    color: var(--white);
    margin-top: 4px;
    opacity: 0.9;
}

.timer-separator {
    font-size: 36px;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.pricing-card {
    position: relative;
    padding: var(--spacing-lg);
    background: var(--white);
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.pricing-card.popular {
    border-color: var(--accent);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, #FFF9F0 0%, #FFFFFF 100%);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 20px;
    background: var(--accent);
    color: var(--white);
    font-family: var(--font-display);
    font-size: 12px;
    font-weight: 700;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
}

.card-label {
    font-family: var(--font-display);
    font-size: 12px;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
}

.card-title {
    font-size: 24px;
    font-weight: 800;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-xs);
}

.card-supply {
    font-size: 14px;
    color: var(--gray);
    margin-bottom: var(--spacing-md);
}

.card-image {
    margin: var(--spacing-md) 0;
}

.card-image img {
    max-width: 200px;
    margin: 0 auto;
}

.card-price {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: var(--spacing-md) 0;
}

.price-per {
    font-family: var(--font-display);
    font-size: 48px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}

.price-label {
    font-size: 14px;
    color: var(--gray);
}

.card-total {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin: var(--spacing-md) 0;
}

.original-price {
    font-size: 18px;
    color: var(--gray);
    text-decoration: line-through;
}

.sale-price {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 800;
    color: var(--success);
}

.bonus-badges {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin: var(--spacing-md) 0;
}

.bonus-tag {
    padding: 8px 16px;
    background: var(--success);
    color: var(--white);
    font-size: 12px;
    font-weight: 700;
    border-radius: var(--radius-sm);
}

.card-cta {
    display: block;
    width: 100%;
    padding: 16px 24px;
    min-height: 56px;
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 700;
    color: var(--white);
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    margin: var(--spacing-md) 0;
}

.card-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.payment-logos {
    margin-top: var(--spacing-md);
}

.payment-logos img {
    max-width: 200px;
    margin: 0 auto;
    opacity: 0.7;
}

.rating-display {
    text-align: center;
}

.rating-display img {
    max-width: 300px;
    margin: 0 auto;
}

@media (min-width: 576px) {
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ==========================================
   BONUS SECTION
   ========================================== */

.bonus-section {
    padding: 60px 0;
    background: linear-gradient(135deg, #F0F7FF 0%, #FFFFFF 100%);
}

.bonus-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.bonus-card {
    padding: var(--spacing-lg);
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: all var(--transition-base);
}

.bonus-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.bonus-image {
    margin-bottom: var(--spacing-md);
}

.bonus-image img {
    max-width: 300px;
    margin: 0 auto;
}

.bonus-card h3 {
    font-size: 20px;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.bonus-card p {
    font-size: 15px;
    color: var(--gray);
    margin: 0;
}

@media (min-width: 768px) {
    .bonus-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ==========================================
   INGREDIENTS SECTION
   ========================================== */

.ingredients-section {
    padding: 60px 0;
    background: var(--white);
}

.ingredients-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.ingredient-card {
    padding: var(--spacing-lg);
    background: var(--light-gray);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary);
    transition: all var(--transition-base);
}

.ingredient-card:hover {
    background: #E8F2FF;
    transform: translateX(8px);
}

.ingredient-card h3 {
    font-size: 18px;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.ingredient-card p {
    font-size: 14px;
    color: var(--dark-gray);
    margin: 0;
    line-height: 1.7;
}

@media (min-width: 576px) {
    .ingredients-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .ingredients-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ==========================================
   SCIENCE SECTION
   ========================================== */

.science-section {
    padding: 60px 0;
    background: linear-gradient(135deg, #F0F7FF 0%, #FFFFFF 100%);
}

.science-accordion {
    max-width: 900px;
    margin: 0 auto;
}

.science-item {
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.science-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 20px;
    background: var(--white);
    border: none;
    cursor: pointer;
    text-align: left;
    min-height: 60px;
    transition: all var(--transition-base);
}

.science-header:hover {
    background: #E8F2FF;
}

.science-header span:first-child {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 700;
    color: var(--primary-dark);
}

.science-icon {
    font-size: 24px;
    color: var(--primary);
    transition: transform var(--transition-base);
}

.science-item.active .science-icon {
    transform: rotate(45deg);
}

.science-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
}

.science-item.active .science-content {
    max-height: 1000px;
}

.science-content p {
    padding: 20px;
    font-size: 15px;
    line-height: 1.7;
    color: var(--dark-gray);
    background: var(--light-gray);
    margin: 0;
}

/* ==========================================
   FORMULATED SECTION
   ========================================== */

.formulated-section {
    padding: 60px 0;
    background: var(--white);
}

.formulated-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.formulated-card {
    position: relative;
    padding: var(--spacing-xl) var(--spacing-lg);
    background: linear-gradient(135deg, #F0F7FF 0%, #FFFFFF 100%);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.formulated-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.formulated-number {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 800;
    color: var(--white);
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 50%;
    box-shadow: var(--shadow-md);
}

.formulated-icon {
    color: var(--primary);
    margin-bottom: var(--spacing-md);
}

.formulated-card h3 {
    font-size: 20px;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
}

.formulated-card p {
    font-size: 15px;
    color: var(--dark-gray);
    line-height: 1.7;
    margin: 0;
}

@media (min-width: 768px) {
    .formulated-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ==========================================
   GUARANTEE SECTION
   ========================================== */

.guarantee-section {
    padding: 60px 0;
    background: linear-gradient(135deg, #F0F7FF 0%, #FFFFFF 100%);
}

.guarantee-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    align-items: center;
}

.guarantee-image {
    width: 100%;
    max-width: 400px;
}

.guarantee-image img {
    border-radius: var(--radius-lg);
}

.guarantee-text h2 {
    color: var(--primary-dark);
    margin-bottom: var(--spacing-xl);
}

.guarantee-points {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.guarantee-point {
    display: flex;
    gap: var(--spacing-md);
}

.point-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--white);
    background: var(--success);
    border-radius: 50%;
}

.point-content h3 {
    font-size: 18px;
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
}

.point-content p {
    font-size: 15px;
    color: var(--dark-gray);
    line-height: 1.7;
    margin: 0;
}

@media (min-width: 768px) {
    .guarantee-content {
        flex-direction: row;
    }
    
    .guarantee-image {
        flex: 1;
    }
    
    .guarantee-text {
        flex: 1;
    }
}

/* ==========================================
   BENEFITS SECTION
   ========================================== */

.benefits-section {
    padding: 60px 0;
    background: var(--white);
}

.benefits-list {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.benefit-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--light-gray);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.benefit-item:hover {
    background: #E8F2FF;
    transform: translateX(8px);
}

.benefit-icon {
    flex-shrink: 0;
}

.benefit-item h3 {
    font-size: 18px;
    color: var(--primary);
    margin-bottom: 4px;
}

.benefit-item p {
    font-size: 14px;
    color: var(--gray);
    margin: 0;
}

/* ==========================================
   FAQ SECTION
   ========================================== */

.faq-section {
    padding: 60px 0;
    background: linear-gradient(135deg, #F0F7FF 0%, #FFFFFF 100%);
}

.faq-accordion {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 20px;
    background: var(--white);
    border: none;
    cursor: pointer;
    text-align: left;
    min-height: 60px;
    transition: all var(--transition-base);
}

.faq-header:hover {
    background: #E8F2FF;
}

.faq-header span:first-child {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 700;
    color: var(--primary-dark);
    flex: 1;
    padding-right: var(--spacing-md);
}

.faq-icon {
    font-size: 24px;
    color: var(--primary);
    transition: transform var(--transition-base);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
}

.faq-item.active .faq-content {
    max-height: 500px;
}

.faq-content p {
    padding: 20px;
    font-size: 15px;
    line-height: 1.7;
    color: var(--dark-gray);
    background: var(--light-gray);
    margin: 0;
}

/* ==========================================
   FINAL CTA SECTION
   ========================================== */

.final-cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: var(--white);
    overflow: hidden;
}

.final-cta-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    align-items: center;
}

.final-cta-image {
    position: relative;
    width: 100%;
    max-width: 400px;
}

.final-cta-image img {
    width: 100%;
    animation: float 6s ease-in-out infinite;
}

.pulse-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    border: 3px solid rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    animation: pulse-ring 2s ease-out infinite;
}

@keyframes pulse-ring {
    0% {
        transform: translate(-50%, -50%) scale(0.8);
        opacity: 1;
    }
    100% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 0;
    }
}

.final-cta-text {
    text-align: center;
}

.final-cta-text h2 {
    color: var(--white);
    margin-bottom: var(--spacing-lg);
}

.final-pricing {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.final-regular {
    font-size: 18px;
    opacity: 0.8;
}

.final-special {
    font-size: 36px;
    font-weight: 800;
    font-family: var(--font-display);
}

.final-special strong {
    color: var(--accent);
}

.cta-final {
    background: var(--accent);
    color: var(--white);
    margin: 0 auto var(--spacing-lg);
}

.cta-final:hover {
    background: var(--accent-light);
}

.final-guarantee {
    font-size: 14px;
    margin-bottom: var(--spacing-xs);
    opacity: 0.9;
}

@media (min-width: 768px) {
    .final-cta-content {
        flex-direction: row;
    }
    
    .final-cta-text {
        text-align: left;
        flex: 1;
    }
}

/* ==========================================
   FOOTER
   ========================================== */

.site-footer {
    padding: 60px 0 20px;
    background: var(--primary-dark);
    color: var(--white);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-column h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-column a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--accent);
}

.social-icons {
    display: flex;
    gap: var(--spacing-md);
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.social-icons a:hover {
    background: var(--accent);
    transform: translateY(-4px);
}

.footer-disclaimer {
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.footer-disclaimer p {
    font-size: 12px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

.footer-copyright {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-copyright p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ==========================================
   SCROLL TO TOP BUTTON
   ========================================== */

.scroll-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    color: var(--white);
    border-radius: 50%;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 999;
    cursor: pointer;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    background: var(--accent-light);
    transform: translateY(-4px);
}

/* ==========================================
   REDUCED MOTION
   ========================================== */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}