/* ===================================
   CSS RESET & BASE STYLES
   =================================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1e293b;
    background: #ffffff;
    overflow-x: hidden;
}

/* Remove tap highlight */
* {
    -webkit-tap-highlight-color: transparent;
}

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

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

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

ul {
    list-style: none;
}

/* ===================================
   CSS VARIABLES
   =================================== */
:root {
    /* Medical Professional Colors */
    --primary-color: #1E40AF;
    --primary-light: #3B82F6;
    --primary-lighter: #93C5FD;
    --primary-dark: #1e3a8a;
    
    --secondary-color: #0ea5e9;
    --accent-color: #10b981;
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Container */
    --container-width: 1200px;
    --container-padding: 20px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* 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);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal: 1040;
    --z-tooltip: 1050;
}

/* ===================================
   TYPOGRAPHY
   =================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', Georgia, serif;
    font-weight: 700;
    line-height: 1.2;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 2rem;
    font-weight: 800;
}

h2 {
    font-size: 1.75rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--gray-700);
    line-height: 1.8;
}

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

.section {
    padding: var(--spacing-2xl) 0;
}

.section__title {
    text-align: center;
    font-size: 2rem;
    color: var(--gray-900);
    margin-bottom: var(--spacing-lg);
    position: relative;
}

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

.section__subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-xl);
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===================================
   BUTTONS
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
    text-align: center;
    min-height: 48px;
    touch-action: manipulation;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--white);
    box-shadow: var(--shadow-md);
}

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

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

.btn-cta {
    background: linear-gradient(135deg, #10b981, #059669);
    color: var(--white);
    font-size: 1.125rem;
    padding: 1rem 2rem;
    box-shadow: var(--shadow-lg);
}

.btn-cta:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-2xl);
}

.btn-large {
    font-size: 1.25rem;
    padding: 1.25rem 2.5rem;
    min-height: 56px;
}

.btn-block {
    width: 100%;
    display: flex;
}

.btn-pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    }
    50% {
        box-shadow: 0 0 0 15px rgba(16, 185, 129, 0);
    }
}

/* Touch feedback */
@media (hover: none) {
    .btn:active {
        transform: scale(0.98);
    }
}

/* ===================================
   HEADER & NAVIGATION
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--white);
    box-shadow: var(--shadow-md);
    z-index: var(--z-sticky);
    transition: all var(--transition-base);
}

.header.scroll-header {
    padding: 0.5rem 0;
    box-shadow: var(--shadow-lg);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav__logo {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
}

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

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

.nav__list {
    display: flex;
    gap: var(--spacing-lg);
}

.nav__link {
    color: var(--gray-700);
    font-weight: 500;
    transition: color var(--transition-fast);
    padding: 0.5rem;
}

.nav__link:hover {
    color: var(--primary-color);
}

.nav__cta {
    padding: 0.75rem 1.5rem;
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
}

.nav__toggle span {
    width: 25px;
    height: 3px;
    background: var(--gray-700);
    border-radius: 2px;
    transition: all var(--transition-base);
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
    padding-top: 120px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(59, 130, 246, 0.05), transparent);
    z-index: 0;
}

.hero__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero__image-wrapper {
    position: relative;
}

.hero__image-wrapper img {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
    filter: drop-shadow(0 20px 40px rgba(30, 64, 175, 0.2));
}

.hero__glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.15), transparent 70%);
    animation: glow-pulse 3s ease-in-out infinite;
    z-index: -1;
}

@keyframes glow-pulse {
    0%, 100% {
        opacity: 0.5;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}

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

.hero__title {
    font-size: 2.5rem;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.hero__description {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-lg);
}

/* Fade-up animations */
.animate-fade-up {
    opacity: 0;
    animation: fadeUp 0.8s ease forwards;
}

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

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

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

/* ===================================
   WHY CHOOSE US SECTION
   =================================== */
.badges-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.badge-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all var(--transition-base);
    opacity: 0;
    transform: translateY(40px);
}

.badge-card.animated {
    animation: slideUp 0.6s ease forwards;
}

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

.badge-card:hover {
    transform: translateY(-8px) rotate(2deg) scale(1.05);
    box-shadow: var(--shadow-xl);
}

.badge-card__icon {
    margin-bottom: var(--spacing-md);
}

.badge-card__icon img {
    width: 80px;
    height: 80px;
    margin: 0 auto;
}

.badge-card__title {
    font-size: 1.25rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.badge-card__description {
    font-size: 0.9375rem;
    color: var(--gray-600);
    line-height: 1.6;
}

/* ===================================
   WHAT IS SECTION
   =================================== */
.what-is__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.what-is__content p {
    font-size: 1.0625rem;
    margin-bottom: var(--spacing-md);
}

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

/* ===================================
   ACCORDION
   =================================== */
.accordion {
    max-width: 900px;
    margin: 0 auto;
}

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

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

.accordion-header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--gray-50);
    cursor: pointer;
    transition: all var(--transition-base);
    min-height: 44px;
}

.accordion-header:hover {
    background: var(--primary-lighter);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(147, 197, 253, 0.1));
}

.accordion-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-800);
    text-align: left;
}

.accordion-icon {
    transition: transform var(--transition-base);
    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: var(--spacing-md) var(--spacing-lg);
    font-size: 1rem;
    line-height: 1.8;
}

/* ===================================
   REVIEWS SECTION
   =================================== */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.review-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    opacity: 0;
    transform: translateX(-40px);
}

.review-card.animated {
    animation: slideInLeft 0.6s ease forwards;
}

@keyframes slideInLeft {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

.review-card:nth-child(3) {
    animation-delay: 0.4s;
}

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

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

.review-card__avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary-lighter);
}

.review-card__name {
    font-size: 1.125rem;
    color: var(--gray-900);
    margin-bottom: 0.25rem;
}

.review-card__location {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-bottom: 0.5rem;
}

.review-card__rating {
    display: flex;
    gap: 0.25rem;
}

.star {
    color: #fbbf24;
    font-size: 1.125rem;
}

.review-card__text {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--gray-700);
    font-style: italic;
}

/* ===================================
   PRICING SECTION
   =================================== */
.pricing {
    background: linear-gradient(135deg, var(--gray-50), var(--white));
}

.countdown {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, #dc2626, #ef4444);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.countdown__item {
    text-align: center;
}

.countdown__value {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--white);
    font-family: 'Playfair Display', serif;
    line-height: 1;
}

.countdown__label {
    display: block;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.9);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 0.25rem;
}

.countdown__separator {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--white);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

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

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

.pricing-card--popular {
    border: 3px solid var(--primary-color);
    transform: scale(1.05);
    box-shadow: var(--shadow-2xl);
}

.pricing-card__badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #dc2626, #ef4444);
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 1px;
    box-shadow: var(--shadow-lg);
}

.pricing-card__label {
    display: inline-block;
    background: var(--primary-lighter);
    color: var(--primary-dark);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    letter-spacing: 1px;
}

.pricing-card__package {
    font-size: 1.5rem;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.pricing-card__supply {
    font-size: 1rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-md);
}

.pricing-card__image {
    margin: var(--spacing-lg) 0;
}

.pricing-card__image img {
    max-width: 200px;
    margin: 0 auto;
}

.pricing-card__price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.25rem;
    margin-bottom: var(--spacing-sm);
}

.pricing-card__amount {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    font-family: 'Playfair Display', serif;
}

.pricing-card__per {
    font-size: 1.125rem;
    color: var(--gray-600);
}

.pricing-card__total {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
}

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

.pricing-card__current {
    font-weight: 700;
    color: var(--accent-color);
    font-size: 1.5rem;
}

.pricing-card__perks {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: var(--spacing-md);
}

.perk-badge {
    background: linear-gradient(135deg, #10b981, #059669);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
}

.pricing-card__payment {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--gray-200);
}

.pricing__rating {
    text-align: center;
}

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

/* ===================================
   INGREDIENTS SECTION
   =================================== */
.ingredients-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

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

.ingredient-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-lg);
    border-left-color: var(--accent-color);
}

.ingredient-card__name {
    color: var(--primary-color);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.ingredient-card__description {
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-sm);
}

.ingredient-card__benefits {
    font-size: 0.9375rem;
    color: var(--gray-600);
}

/* ===================================
   GUARANTEE SECTION
   =================================== */
.guarantee__container {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-xl);
    align-items: center;
}

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

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

.guarantee__point h3 {
    color: var(--primary-color);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.guarantee__point p {
    font-size: 1rem;
    line-height: 1.7;
}

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

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.benefit-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

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

.benefit-content h3 {
    font-size: 1.125rem;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.benefit-content p {
    font-size: 0.9375rem;
    color: var(--gray-600);
    margin-bottom: 0;
}

/* ===================================
   FINAL CTA SECTION
   =================================== */
.final-cta {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    padding: var(--spacing-3xl) 0;
}

.final-cta__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.animate-slide-in {
    animation: slideIn 0.8s ease forwards;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

.final-cta__title {
    color: var(--white);
    font-size: 2.25rem;
    margin-bottom: var(--spacing-lg);
}

.final-cta__title .text-gradient {
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.final-cta__regular {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.125rem;
}

.final-cta__regular del {
    color: rgba(255, 255, 255, 0.6);
}

.final-cta__special {
    color: var(--white);
    font-size: 2rem;
    font-weight: 800;
    font-family: 'Playfair Display', serif;
}

/* ===================================
   FOOTER
   =================================== */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer__content {
    text-align: center;
}

.footer__links {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.footer__link {
    color: var(--gray-300);
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

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

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

.footer__disclaimer {
    background: rgba(255, 255, 255, 0.05);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.footer__disclaimer p {
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--gray-400);
    margin-bottom: 0;
}

.footer__social {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.footer__social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--gray-300);
    transition: all var(--transition-base);
}

.footer__social-link:hover {
    background: var(--primary-light);
    color: var(--white);
    transform: translateY(-3px);
}

.footer__copyright {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* ===================================
   SCROLL TO TOP BUTTON
   =================================== */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: var(--z-fixed);
    cursor: pointer;
}

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

.scroll-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-2xl);
}

/* ===================================
   POPUP MODAL
   =================================== */
.popup {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.popup.show {
    opacity: 1;
    visibility: visible;
    animation: slideUp 0.5s ease;
}

.popup__content {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-2xl);
    padding: var(--spacing-lg);
    max-width: 350px;
    position: relative;
    border: 2px solid var(--primary-light);
}

.popup__close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-500);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.popup__close:hover {
    background: var(--gray-100);
    color: var(--gray-900);
}

.popup__title {
    font-size: 1.25rem;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

.popup__text {
    font-size: 0.9375rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-md);
}

/* ===================================
   MOBILE RESPONSIVE DESIGN
   =================================== */

/* Large Phones & Small Tablets: 576px - 767px */
@media (max-width: 767px) {
    /* Typography */
    h1 {
        font-size: 1.75rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .section__title {
        font-size: 1.75rem;
    }
    
    /* Navigation */
    .nav__menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 100%;
        max-width: 320px;
        height: calc(100vh - 70px);
        background: var(--white);
        flex-direction: column;
        padding: var(--spacing-xl);
        box-shadow: var(--shadow-2xl);
        transition: right var(--transition-base);
    }
    
    .nav__menu.show {
        right: 0;
    }
    
    .nav__list {
        flex-direction: column;
        width: 100%;
    }
    
    .nav__link {
        display: block;
        padding: var(--spacing-sm);
        border-bottom: 1px solid var(--gray-200);
    }
    
    .nav__cta {
        width: 100%;
        margin-top: var(--spacing-md);
    }
    
    .nav__toggle {
        display: flex;
    }
    
    .nav__toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }
    
    .nav__toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav__toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
    
    /* Hero Section */
    .hero {
        padding-top: 90px;
        min-height: auto;
    }
    
    .hero__container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero__image {
        order: -1;
        margin-bottom: var(--spacing-lg);
    }
    
    .hero__title {
        font-size: 1.75rem;
    }
    
    .hero__description {
        font-size: 1rem;
    }
    
    /* Badges Grid */
    .badges-grid {
        grid-template-columns: 1fr;
    }
    
    /* What Is Section */
    .what-is__container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .what-is__image {
        order: -1;
        margin-bottom: var(--spacing-lg);
    }
    
    /* Reviews */
    .reviews-grid {
        grid-template-columns: 1fr;
    }
    
    /* Countdown */
    .countdown__value {
        font-size: 2rem;
    }
    
    .countdown__separator {
        font-size: 2rem;
    }
    
    /* Pricing Grid */
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-card--popular {
        transform: scale(1);
    }
    
    /* Ingredients */
    .ingredients-grid {
        grid-template-columns: 1fr;
    }
    
    /* Guarantee */
    .guarantee__container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .guarantee__image {
        order: -1;
        margin-bottom: var(--spacing-lg);
    }
    
    /* Final CTA */
    .final-cta__container {
        grid-template-columns: 1fr;
    }
    
    .final-cta__image {
        order: -1;
    }
    
    .final-cta__title {
        font-size: 1.75rem;
    }
    
    .final-cta__special {
        font-size: 1.5rem;
    }
    
    /* Footer */
    .footer__links {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .footer__separator {
        display: none;
    }
    
    /* Popup */
    .popup {
        bottom: 10px;
        right: 10px;
        left: 10px;
    }
    
    .popup__content {
        max-width: 100%;
    }
    
    /* Scroll Top */
    .scroll-top {
        width: 48px;
        height: 48px;
        bottom: 20px;
        right: 20px;
    }
}

/* Tablets: 768px - 991px */
@media (min-width: 768px) and (max-width: 991px) {
    .badges-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-card:last-child {
        grid-column: 1 / -1;
        max-width: 400px;
        margin: 0 auto;
    }
}

/* Small Phones: 320px - 479px */
@media (max-width: 479px) {
    .container {
        padding: 0 15px;
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    h1 {
        font-size: 1.5rem;
    }
    
    .hero__title {
        font-size: 1.5rem;
    }
    
    .btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.9375rem;
    }
    
    .btn-large {
        font-size: 1rem;
        padding: 1rem 1.5rem;
    }
    
    .countdown__value {
        font-size: 1.75rem;
    }
}

/* Large Desktop: 1440px+ */
@media (min-width: 1440px) {
    :root {
        --container-width: 1320px;
    }
    
    .section__title {
        font-size: 2.5rem;
    }
    
    .hero__title {
        font-size: 3rem;
    }
}

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

/* Print Styles */
@media print {
    .header,
    .nav__toggle,
    .scroll-top,
    .popup {
        display: none !important;
    }
}