/* ===============================================
   MEMOGENESIS - MODERN MEDICAL-TECH DESIGN
   CSS Stylesheet with Mobile-First Responsive Design
   =============================================== */

/* ============= ROOT VARIABLES ============= */
:root {
    /* Color Palette - Modern Medical Tech */
    --primary-blue: #1E40AF;
    --secondary-blue: #3B82F6;
    --light-blue: #93C5FD;
    --accent-cyan: #06B6D4;
    --dark-navy: #0F172A;
    --gray-900: #111827;
    --gray-800: #1F2937;
    --gray-700: #374151;
    --gray-600: #4B5563;
    --gray-500: #6B7280;
    --gray-400: #9CA3AF;
    --gray-300: #D1D5DB;
    --gray-200: #E5E7EB;
    --gray-100: #F3F4F6;
    --white: #FFFFFF;
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #1E40AF 0%, #06B6D4 100%);
    --gradient-secondary: linear-gradient(135deg, #3B82F6 0%, #93C5FD 100%);
    --gradient-overlay: linear-gradient(180deg, rgba(15, 23, 42, 0.8) 0%, rgba(15, 23, 42, 0.95) 100%);
    
    /* Typography */
    --font-primary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-secondary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --container-max-width: 1280px;
    --container-padding: 20px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;
}

/* ============= RESET & BASE STYLES ============= */
*,
*::before,
*::after {
    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-secondary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--white);
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

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

input,
select,
textarea {
    font-size: 16px; /* Prevent iOS zoom on focus */
    font-family: inherit;
}

/* ============= UTILITY CLASSES ============= */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-title {
    font-family: var(--font-primary);
    font-size: 32px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 12px;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 18px;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* ============= ANIMATIONS ============= */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

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

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.animate-slide-up {
    animation: slideUp 0.8s ease-out forwards;
    opacity: 0;
}

.animate-slide-up.delay-1 {
    animation-delay: 0.2s;
}

.animate-slide-up.delay-2 {
    animation-delay: 0.4s;
}

.animate-slide-up.delay-3 {
    animation-delay: 0.6s;
}

.animate-slide-up.delay-4 {
    animation-delay: 0.8s;
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}

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

/* ============= BUTTON STYLES ============= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-family: var(--font-primary);
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    text-align: center;
    min-height: 48px;
}

.btn-primary {
    background: var(--primary-blue);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--secondary-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-gradient {
    background: var(--gradient-primary);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.btn-gradient::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.btn-gradient:hover::before {
    left: 100%;
}

.btn-gradient:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-large {
    padding: 18px 36px;
    font-size: 18px;
    min-height: 56px;
}

.btn-arrow {
    transition: transform var(--transition-normal);
}

.btn:hover .btn-arrow {
    transform: translateX(4px);
}

/* ============= HEADER / NAVIGATION ============= */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.header.scrolled {
    padding: 8px 0;
    box-shadow: var(--shadow-lg);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px var(--container-padding);
    gap: 20px;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-primary);
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-blue);
}

.logo-icon {
    font-size: 32px;
}

.nav__menu {
    display: none;
}

.nav__list {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav__link {
    font-family: var(--font-primary);
    font-size: 16px;
    font-weight: 500;
    color: var(--gray-700);
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-normal);
}

.nav__link:hover::after {
    width: 100%;
}

.nav__cta {
    flex-shrink: 0;
}

.nav__toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    width: 28px;
    height: 28px;
    cursor: pointer;
}

.nav__toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--primary-blue);
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
}

.nav__toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.nav__toggle.active span:nth-child(2) {
    opacity: 0;
}

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

/* Mobile menu */
@media (max-width: 767px) {
    .nav__menu {
        position: fixed;
        top: 64px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 64px);
        background: var(--white);
        display: flex;
        align-items: center;
        justify-content: center;
        transition: left var(--transition-normal);
    }
    
    .nav__menu.active {
        left: 0;
    }
    
    .nav__list {
        flex-direction: column;
        gap: 24px;
    }
    
    .nav__link {
        font-size: 20px;
    }
}

@media (min-width: 768px) {
    .nav__menu {
        display: block;
    }
    
    .nav__toggle {
        display: none;
    }
}

/* ============= HERO SECTION ============= */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #F0F9FF 0%, #E0F2FE 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(30, 64, 175, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero__container {
    display: grid;
    gap: 48px;
    align-items: center;
}

.hero__image-wrapper {
    position: relative;
}

.hero__product {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.15));
}

.hero__glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.3) 0%, transparent 70%);
    z-index: -1;
    animation: pulse 3s ease-in-out infinite;
}

.hero__content {
    text-align: center;
}

.hero__title {
    font-family: var(--font-primary);
    font-size: 32px;
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1.2;
    margin-bottom: 24px;
}

.hero__description {
    font-size: 16px;
    color: var(--gray-600);
    margin-bottom: 16px;
    line-height: 1.7;
}

.hero__cta {
    margin: 32px 0;
}

.hero__trust {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
}

.trust-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--gray-700);
}

.trust-badge svg {
    color: var(--warning);
    flex-shrink: 0;
}

@media (min-width: 768px) {
    .hero {
        padding: 140px 0 100px;
    }
    
    .hero__container {
        grid-template-columns: 1fr 1fr;
        gap: 64px;
    }
    
    .hero__content {
        text-align: left;
    }
    
    .hero__title {
        font-size: 42px;
    }
    
    .hero__description {
        font-size: 18px;
    }
    
    .hero__trust {
        flex-direction: row;
        gap: 24px;
        align-items: flex-start;
    }
}

@media (min-width: 1024px) {
    .hero__title {
        font-size: 48px;
    }
}

/* ============= WHY CHOOSE SECTION ============= */
.why-choose {
    padding: 80px 0;
    background: var(--white);
}

.features-grid {
    display: grid;
    gap: 24px;
}

.feature-card {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: 32px;
    text-align: center;
    transition: all var(--transition-normal);
}

.feature-card:hover {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
}

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

.feature-title {
    font-family: var(--font-primary);
    font-size: 20px;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.feature-description {
    font-size: 15px;
    color: var(--gray-600);
    line-height: 1.6;
}

@media (min-width: 576px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
}

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

/* ============= WHAT IS SECTION ============= */
.what-is {
    padding: 80px 0;
    background: linear-gradient(135deg, #F9FAFB 0%, #F3F4F6 100%);
}

.what-is__container {
    display: grid;
    gap: 48px;
    align-items: center;
}

.what-is__text {
    font-size: 16px;
    color: var(--gray-700);
    line-height: 1.8;
    margin-bottom: 20px;
}

.what-is__img {
    width: 100%;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
}

@media (min-width: 768px) {
    .what-is__container {
        grid-template-columns: 1fr 1fr;
        gap: 64px;
    }
    
    .what-is__text {
        font-size: 17px;
    }
}

/* ============= HOW IT WORKS SECTION ============= */
.how-it-works {
    padding: 80px 0;
    background: var(--white);
}

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

.accordion-item {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    margin-bottom: 16px;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.accordion-item:hover {
    border-color: var(--primary-blue);
}

.accordion-header {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--white);
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: 44px;
}

.accordion-header:hover {
    background: var(--gray-100);
}

.accordion-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    color: var(--white);
    font-family: var(--font-primary);
    font-size: 18px;
    font-weight: 700;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

.accordion-title {
    flex: 1;
    font-family: var(--font-primary);
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-900);
    text-align: left;
}

.accordion-icon {
    color: var(--gray-600);
    transition: transform var(--transition-normal);
    flex-shrink: 0;
}

.accordion-item.active .accordion-icon {
    transform: rotate(180deg);
}

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

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

.accordion-content p {
    padding: 0 20px 20px 76px;
    font-size: 16px;
    color: var(--gray-700);
    line-height: 1.7;
}

@media (max-width: 575px) {
    .accordion-header {
        padding: 16px;
    }
    
    .accordion-number {
        width: 36px;
        height: 36px;
        font-size: 16px;
    }
    
    .accordion-title {
        font-size: 16px;
    }
    
    .accordion-content p {
        padding: 0 16px 16px 16px;
        font-size: 15px;
    }
}

/* ============= REVIEWS SECTION ============= */
.reviews {
    padding: 80px 0;
    background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%);
}

.reviews-grid {
    display: grid;
    gap: 32px;
}

.review-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 32px;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
}

.review-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.animate-review {
    opacity: 0;
    animation: fadeIn 0.8s ease-out forwards;
}

.animate-review.delay-1 {
    animation-delay: 0.2s;
}

.animate-review.delay-2 {
    animation-delay: 0.4s;
}

.review-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.review-avatar {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 3px solid var(--primary-blue);
}

.review-name {
    font-family: var(--font-primary);
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.review-location {
    font-size: 14px;
    color: var(--gray-600);
}

.review-rating {
    display: flex;
    gap: 4px;
    margin-bottom: 16px;
}

.star {
    width: 20px;
    height: 20px;
    color: var(--warning);
}

.review-text {
    font-size: 15px;
    color: var(--gray-700);
    line-height: 1.7;
    font-style: italic;
}

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

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

/* ============= PRICING SECTION ============= */
.pricing {
    padding: 80px 0;
    background: var(--white);
}

.countdown-timer {
    text-align: center;
    margin-bottom: 48px;
    padding: 24px;
    background: linear-gradient(135deg, #FEF3C7 0%, #FDE68A 100%);
    border-radius: var(--radius-xl);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 48px;
}

.countdown-message {
    font-family: var(--font-primary);
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 16px;
}

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

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

.countdown-value {
    font-family: var(--font-primary);
    font-size: 48px;
    font-weight: 800;
    color: var(--danger);
    line-height: 1;
}

.countdown-label {
    font-size: 14px;
    color: var(--gray-700);
    margin-top: 4px;
}

.countdown-separator {
    font-size: 48px;
    font-weight: 700;
    color: var(--gray-900);
}

.pricing-grid {
    display: grid;
    gap: 32px;
    margin-bottom: 48px;
}

.pricing-card {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-2xl);
    padding: 32px;
    text-align: center;
    transition: all var(--transition-normal);
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.pricing-card--popular {
    border-color: var(--primary-blue);
    background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%);
    box-shadow: var(--shadow-xl);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: var(--white);
    font-family: var(--font-primary);
    font-size: 12px;
    font-weight: 700;
    padding: 6px 20px;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pricing-label {
    font-family: var(--font-primary);
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-blue);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.pricing-package {
    font-family: var(--font-primary);
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.pricing-supply {
    font-size: 14px;
    color: var(--gray-600);
    margin-bottom: 24px;
}

.pricing-image {
    margin: 24px 0;
}

.pricing-image img {
    width: 100%;
    max-width: 200px;
    margin: 0 auto;
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
    margin-bottom: 12px;
}

.pricing-per {
    font-family: var(--font-primary);
    font-size: 48px;
    font-weight: 800;
    color: var(--primary-blue);
}

.pricing-unit {
    font-size: 16px;
    color: var(--gray-600);
}

.pricing-total {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 24px;
}

.pricing-old {
    font-size: 20px;
    color: var(--gray-500);
    text-decoration: line-through;
}

.pricing-new {
    font-family: var(--font-primary);
    font-size: 32px;
    font-weight: 700;
    color: var(--success);
}

.pricing-bonuses {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 24px;
}

.bonus-badge {
    display: inline-block;
    background: linear-gradient(135deg, #D1FAE5 0%, #A7F3D0 100%);
    color: var(--success);
    font-size: 13px;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: var(--radius-full);
}

.pricing-btn {
    width: 100%;
    margin-bottom: 20px;
}

.btn-cart-icon {
    width: 20px;
    height: 20px;
}

.pricing-payment img {
    max-width: 250px;
    margin: 0 auto;
}

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

.pricing-rating img {
    max-width: 250px;
    margin: 0 auto;
}

@media (min-width: 576px) and (max-width: 991px) {
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-card:last-child {
        grid-column: 1 / -1;
        max-width: 400px;
        margin: 0 auto;
        width: 100%;
    }
}

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

/* ============= BONUSES SECTION ============= */
.bonuses {
    padding: 80px 0;
    background: linear-gradient(135deg, #F9FAFB 0%, #F3F4F6 100%);
}

.bonuses-grid {
    display: grid;
    gap: 32px;
}

.bonus-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
}

.bonus-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2xl);
}

.bonus-image img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.bonus-content {
    padding: 32px;
}

.bonus-title {
    font-family: var(--font-primary);
    font-size: 22px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
}

.bonus-description {
    font-size: 16px;
    color: var(--gray-700);
    line-height: 1.7;
    margin-bottom: 16px;
}

.bonus-value {
    display: inline-block;
    background: var(--gradient-primary);
    color: var(--white);
    font-family: var(--font-primary);
    font-size: 16px;
    font-weight: 600;
    padding: 8px 20px;
    border-radius: var(--radius-full);
}

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

/* ============= INGREDIENTS SECTION ============= */
.ingredients {
    padding: 80px 0;
    background: var(--white);
}

.ingredients-grid {
    display: grid;
    gap: 24px;
}

.ingredient-card {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: all var(--transition-normal);
}

.ingredient-card:hover {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-lg);
}

.ingredient-name {
    font-family: var(--font-primary);
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 12px;
}

.ingredient-description {
    font-size: 15px;
    color: var(--gray-700);
    line-height: 1.7;
}

@media (min-width: 768px) {
    .ingredients-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
}

/* ============= SCIENTIFIC EVIDENCE SECTION ============= */
.scientific-evidence {
    padding: 80px 0;
    background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%);
}

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

.evidence-section {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 32px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-md);
}

.evidence-title {
    font-family: var(--font-primary);
    font-size: 22px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
}

.evidence-text {
    font-size: 16px;
    color: var(--gray-700);
    line-height: 1.8;
}

/* ============= FORMULATION SECTION ============= */
.formulation {
    padding: 80px 0;
    background: var(--white);
}

.formulation-grid {
    display: grid;
    gap: 32px;
}

.formulation-step {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: 40px 32px;
    text-align: center;
    transition: all var(--transition-normal);
    position: relative;
}

.formulation-step:hover {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.step-number {
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: var(--white);
    font-family: var(--font-primary);
    font-size: 20px;
    font-weight: 700;
    border-radius: var(--radius-full);
}

.step-icon {
    color: var(--primary-blue);
    margin: 20px auto 24px;
}

.step-title {
    font-family: var(--font-primary);
    font-size: 22px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
}

.step-description {
    font-size: 15px;
    color: var(--gray-700);
    line-height: 1.7;
}

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

/* ============= GUARANTEE SECTION ============= */
.guarantee {
    padding: 80px 0;
    background: linear-gradient(135deg, #F9FAFB 0%, #F3F4F6 100%);
}

.guarantee__container {
    display: grid;
    gap: 48px;
    align-items: center;
}

.guarantee__image img {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

.guarantee-points {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.guarantee-point {
    display: flex;
    gap: 20px;
}

.point-icon {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    color: var(--white);
}

.point-title {
    font-family: var(--font-primary);
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.point-description {
    font-size: 16px;
    color: var(--gray-700);
    line-height: 1.7;
}

@media (min-width: 768px) {
    .guarantee__container {
        grid-template-columns: 1fr 1fr;
        gap: 64px;
    }
}

/* ============= BENEFITS SECTION ============= */
.benefits {
    padding: 80px 0;
    background: var(--white);
}

.benefits-list {
    display: grid;
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
}

.benefit-item {
    display: flex;
    gap: 20px;
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: all var(--transition-normal);
}

.benefit-item:hover {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-lg);
}

.benefit-icon {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    color: var(--success);
}

.benefit-title {
    font-family: var(--font-primary);
    font-size: 18px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.benefit-description {
    font-size: 15px;
    color: var(--gray-700);
    line-height: 1.7;
}

/* ============= FAQ SECTION ============= */
.faq {
    padding: 80px 0;
    background: linear-gradient(135deg, #F9FAFB 0%, #F3F4F6 100%);
}

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

.faq-item {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    margin-bottom: 16px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px;
    font-family: var(--font-primary);
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-900);
    text-align: left;
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: 44px;
}

.faq-question:hover {
    background: var(--gray-100);
}

.faq-icon {
    color: var(--gray-600);
    transition: transform var(--transition-normal);
    flex-shrink: 0;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

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

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

.faq-answer p {
    padding: 0 20px 20px 20px;
    font-size: 16px;
    color: var(--gray-700);
    line-height: 1.7;
}

@media (max-width: 575px) {
    .faq-question {
        font-size: 16px;
        padding: 16px;
    }
    
    .faq-answer p {
        padding: 0 16px 16px 16px;
        font-size: 15px;
    }
}

/* ============= FINAL CTA SECTION ============= */
.final-cta {
    padding: 80px 0;
    background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%);
}

.final-cta__content {
    display: grid;
    gap: 48px;
    align-items: center;
    text-align: center;
}

.final-cta__image img {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

.final-cta__title {
    font-family: var(--font-primary);
    font-size: 32px;
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1.2;
    margin-bottom: 32px;
}

.final-cta__pricing {
    margin-bottom: 32px;
}

.final-cta__regular {
    font-size: 18px;
    color: var(--gray-600);
    margin-bottom: 8px;
}

.price-old {
    text-decoration: line-through;
    color: var(--gray-500);
}

.final-cta__special {
    font-family: var(--font-primary);
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-900);
}

.price-new {
    color: var(--success);
    font-size: 36px;
}

.final-cta__btn {
    margin-bottom: 24px;
}

.final-cta__guarantee {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 14px;
    color: var(--gray-700);
}

.final-cta__guarantee svg {
    color: var(--success);
    flex-shrink: 0;
}

@media (min-width: 768px) {
    .final-cta__title {
        font-size: 42px;
    }
}

/* ============= FOOTER ============= */
.footer {
    padding: 60px 0 32px;
    background: var(--gray-900);
    color: var(--gray-300);
}

.footer__content {
    text-align: center;
}

.footer__links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 32px;
}

.footer__link {
    font-size: 15px;
    color: var(--gray-300);
    transition: color var(--transition-fast);
}

.footer__link:hover {
    color: var(--white);
}

.footer__separator {
    color: var(--gray-600);
}

.footer__disclaimer {
    max-width: 900px;
    margin: 0 auto 32px;
    padding: 24px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
}

.footer__disclaimer p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--gray-400);
}

.footer__social {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 32px;
}

.social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    color: var(--gray-300);
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
}

.footer__copyright {
    font-size: 14px;
    color: var(--gray-500);
}

/* ============= SCROLL TO TOP BUTTON ============= */
.scroll-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-xl);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 999;
}

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

.scroll-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2xl);
}

.scroll-to-top:active {
    transform: translateY(-2px);
}

/* ============= NOTIFICATION POPUP ============= */
.notification-popup {
    position: fixed;
    bottom: 32px;
    left: 32px;
    max-width: 350px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-2xl);
    padding: 16px;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-100px);
    transition: all var(--transition-normal);
    z-index: 998;
}

.notification-popup.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

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

.notification-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--success);
    color: var(--white);
    border-radius: var(--radius-full);
    font-size: 16px;
    font-weight: 700;
    flex-shrink: 0;
}

.notification-text {
    font-size: 14px;
    color: var(--gray-700);
    line-height: 1.5;
}

@media (max-width: 575px) {
    .notification-popup {
        left: 16px;
        right: 16px;
        max-width: none;
    }
    
    .scroll-to-top {
        bottom: 16px;
        right: 16px;
    }
}

/* ============= RESPONSIVE UTILITIES ============= */
@media (max-width: 575px) {
    .section-title {
        font-size: 28px;
    }
    
    .section-subtitle {
        font-size: 16px;
    }
    
    .btn {
        width: 100%;
    }
}

@media (min-width: 576px) and (max-width: 767px) {
    .section-title {
        font-size: 30px;
    }
}

/* ============= PRINT STYLES ============= */
@media print {
    .header,
    .nav,
    .scroll-to-top,
    .notification-popup,
    .countdown-timer {
        display: none;
    }
}