/* ========================================
   RESPICLEAR LANDING PAGE - STYLES.CSS
   Medical Professional Design Theme
   Mobile-First Responsive Approach
   ======================================== */

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

*::before,
*::after {
    box-sizing: border-box;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
    overflow-x: hidden;
}

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

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

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

ul {
    list-style: none;
}

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

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

/* ========================================
   CSS VARIABLES
   ======================================== */
:root {
    /* Medical Professional Colors */
    --color-primary: #1E40AF;
    --color-primary-light: #3B82F6;
    --color-primary-lighter: #93C5FD;
    --color-primary-dark: #1E3A8A;
    
    --color-secondary: #10B981;
    --color-accent: #F59E0B;
    --color-danger: #EF4444;
    
    /* Neutrals */
    --color-white: #FFFFFF;
    --color-black: #000000;
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-300: #D1D5DB;
    --color-gray-400: #9CA3AF;
    --color-gray-500: #6B7280;
    --color-gray-600: #4B5563;
    --color-gray-700: #374151;
    --color-gray-800: #1F2937;
    --color-gray-900: #111827;
    
    /* Typography */
    --font-body: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-heading: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* 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), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
    
    /* Container */
    --container-max-width: 1200px;
    --container-padding: 20px;
}

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

.section {
    padding: 3rem 0;
}

.section__title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-primary);
    text-align: center;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.section__subtitle {
    font-size: 1.125rem;
    color: var(--color-gray-600);
    text-align: center;
    margin-bottom: 2rem;
}

.highlight {
    color: var(--color-primary);
    font-weight: 700;
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    text-align: center;
    min-height: 48px;
    cursor: pointer;
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

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

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

.btn-hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-white);
    padding: 1.125rem 2rem;
    font-size: 1.125rem;
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 400px;
}

.btn-hero:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 25px 35px -5px rgba(30, 64, 175, 0.3);
}

.btn-arrow {
    font-size: 1.25rem;
    transition: transform var(--transition-base);
}

.btn-hero:hover .btn-arrow {
    transform: translateX(5px);
}

.btn-pricing {
    background: transparent;
    border: none;
    padding: 0;
    width: 100%;
}

.btn-pricing img {
    width: 100%;
    max-width: 250px;
    margin: 0 auto;
    transition: transform var(--transition-base);
}

.btn-pricing:hover img {
    transform: scale(1.05);
}

.btn-pricing--popular img {
    filter: drop-shadow(0 10px 20px rgba(30, 64, 175, 0.3));
}

.btn-final-cta {
    background: linear-gradient(135deg, var(--color-secondary) 0%, #059669 100%);
    color: var(--color-white);
    padding: 1.25rem 2.5rem;
    font-size: 1.25rem;
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 500px;
}

.btn-final-cta:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 25px 35px -5px rgba(16, 185, 129, 0.3);
}

.btn-popup {
    background: var(--color-danger);
    color: var(--color-white);
    padding: 1rem 2rem;
    font-size: 1.125rem;
    width: 100%;
    box-shadow: var(--shadow-lg);
}

.btn-popup:hover {
    background: #DC2626;
    transform: translateY(-2px);
}

.btn-cart-img {
    max-height: 50px;
}

/* Touch Feedback */
@media (hover: none) and (pointer: coarse) {
    .btn:active {
        transform: scale(0.98);
    }
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--color-white);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    transition: all var(--transition-base);
}

.header.scrolled {
    box-shadow: var(--shadow-lg);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.875rem var(--container-padding);
    min-height: 70px;
}

.nav__logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.5px;
}

.nav__menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background: var(--color-white);
    box-shadow: var(--shadow-xl);
    padding: 2rem;
    transition: right var(--transition-base);
    z-index: 1001;
}

.nav__menu.show {
    right: 0;
}

.nav__list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 3rem;
}

.nav__link {
    font-size: 1.125rem;
    color: var(--color-gray-700);
    font-weight: 500;
    transition: color var(--transition-fast);
    padding: 0.5rem 0;
    min-height: 44px;
    display: flex;
    align-items: center;
}

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

.nav__close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
    color: var(--color-gray-600);
    cursor: pointer;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav__actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav__toggle {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
    cursor: pointer;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
}

.nav__toggle span {
    width: 25px;
    height: 3px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.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);
}

/* Desktop Navigation */
@media (min-width: 768px) {
    .nav__toggle {
        display: none;
    }
    
    .nav__menu {
        position: static;
        width: auto;
        max-width: none;
        height: auto;
        background: transparent;
        box-shadow: none;
        padding: 0;
    }
    
    .nav__list {
        flex-direction: row;
        gap: 2rem;
        margin-top: 0;
    }
    
    .nav__link {
        font-size: 1rem;
        padding: 0;
    }
    
    .nav__close {
        display: none;
    }
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    margin-top: 70px;
    padding: 3rem 0;
    background: linear-gradient(135deg, #EFF6FF 0%, #FFFFFF 100%);
    overflow: hidden;
}

.hero__container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    align-items: center;
}

.hero__image {
    width: 100%;
    max-width: 400px;
    position: relative;
}

.hero__image-wrapper {
    position: relative;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    25% {
        transform: translateY(-20px) rotate(2deg);
    }
    50% {
        transform: translateY(0) rotate(0deg);
    }
    75% {
        transform: translateY(-10px) rotate(-2deg);
    }
}

.hero__img {
    position: relative;
    z-index: 2;
    filter: drop-shadow(0 20px 40px rgba(30, 64, 175, 0.2));
}

.hero__badge {
    position: absolute;
    top: -10px;
    right: -10px;
    background: var(--color-secondary);
    color: var(--color-white);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 700;
    box-shadow: var(--shadow-lg);
    animation: pulse 2s ease-in-out infinite;
    z-index: 3;
}

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

.hero__glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    animation: glow 4s ease-in-out infinite;
    z-index: 1;
}

@keyframes glow {
    0%, 100% {
        opacity: 0.5;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 0.8;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

.hero__content {
    width: 100%;
    text-align: center;
}

.hero__title {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--color-gray-900);
    line-height: 1.2;
    margin-bottom: 1rem;
}

.hero__description {
    font-size: 1rem;
    color: var(--color-gray-600);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.hero__features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    margin: 1.5rem 0;
}

.feature-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--color-white);
    padding: 0.625rem 1rem;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-sm);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-gray-700);
}

.feature-icon {
    color: var(--color-secondary);
    font-weight: 700;
}

/* Hero Desktop Styles */
@media (min-width: 768px) {
    .hero {
        padding: 4rem 0;
    }
    
    .hero__container {
        flex-direction: row;
        gap: 3rem;
        align-items: center;
    }
    
    .hero__image {
        flex: 1;
    }
    
    .hero__content {
        flex: 1;
        text-align: left;
    }
    
    .hero__title {
        font-size: 2.5rem;
    }
    
    .hero__description {
        font-size: 1.125rem;
    }
    
    .hero__features {
        justify-content: flex-start;
    }
}

@media (min-width: 1024px) {
    .hero__title {
        font-size: 3rem;
    }
}

/* ========================================
   WHY CHOOSE US SECTION
   ======================================== */
.badges {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.badge-card {
    background: var(--color-white);
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all var(--transition-base);
    opacity: 0;
    transform: translateY(30px);
}

.badge-card.animate-in {
    animation: slideUp 0.6s ease-out forwards;
}

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

.badge-card:hover {
    transform: translateY(-10px) scale(1.02) rotate(1deg);
    box-shadow: var(--shadow-xl);
}

.badge-card__icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1rem;
}

.badge-card__icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.badge-card__title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
}

.badge-card__description {
    font-size: 0.938rem;
    color: var(--color-gray-600);
    line-height: 1.6;
}

/* Staggered Animation */
.badge-card:nth-child(1) {
    animation-delay: 0.1s;
}

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

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

.badge-card:nth-child(4) {
    animation-delay: 0.4s;
}

/* Badges Responsive */
@media (min-width: 576px) {
    .badges {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
}

@media (min-width: 992px) {
    .badges {
        grid-template-columns: repeat(4, 1fr);
        gap: 2rem;
    }
}

/* ========================================
   WHAT IS SECTION
   ======================================== */
.what-is {
    background: var(--color-gray-50);
}

.what-is__container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.what-is__content {
    order: 2;
}

.what-is__text {
    font-size: 1rem;
    color: var(--color-gray-600);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.what-is__image {
    order: 1;
}

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

@media (min-width: 768px) {
    .what-is__container {
        flex-direction: row;
        align-items: center;
        gap: 3rem;
    }
    
    .what-is__content {
        flex: 1;
        order: 1;
    }
    
    .what-is__image {
        flex: 1;
        order: 2;
    }
}

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

.accordion-item {
    background: var(--color-white);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    margin-bottom: 1rem;
    overflow: hidden;
    transition: all var(--transition-base);
}

.accordion-item:hover {
    border-color: var(--color-primary-lighter);
    box-shadow: var(--shadow-md);
}

.accordion-header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-gray-800);
    text-align: left;
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: 44px;
    gap: 1rem;
}

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

.accordion-icon {
    font-size: 1.5rem;
    color: var(--color-primary);
    transition: transform var(--transition-base);
    flex-shrink: 0;
}

.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: 0 1.5rem 1.5rem 1.5rem;
    color: var(--color-gray-600);
    line-height: 1.7;
    font-size: 1rem;
}

@media (min-width: 768px) {
    .accordion-header {
        font-size: 1.25rem;
    }
}

/* ========================================
   REVIEWS SECTION
   ======================================== */
.reviews-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.review-card {
    background: var(--color-white);
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    opacity: 0;
    transform: scale(0.9);
}

.review-card.animate-in {
    animation: scaleIn 0.6s ease-out forwards;
}

@keyframes scaleIn {
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.review-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.review-card__header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.review-card__avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--color-primary-lighter);
}

.review-card__name {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-gray-900);
}

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

.review-card__rating {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.review-card__text {
    font-size: 1rem;
    color: var(--color-gray-600);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.review-card__verified {
    display: inline-block;
    background: var(--color-secondary);
    color: var(--color-white);
    padding: 0.375rem 0.875rem;
    border-radius: var(--radius-full);
    font-size: 0.813rem;
    font-weight: 600;
}

/* Staggered Review Animation */
.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;
}

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

@media (min-width: 1024px) {
    .reviews-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ========================================
   PRICING SECTION
   ======================================== */
.pricing {
    background: linear-gradient(135deg, #EFF6FF 0%, #FFFFFF 100%);
}

.countdown {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    background: var(--color-danger);
    padding: 1.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

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

.countdown__value {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-white);
    line-height: 1;
}

.countdown__label {
    font-size: 0.875rem;
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 0.25rem;
}

.countdown__separator {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-white);
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

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

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary-lighter);
}

.pricing-card--popular {
    border-color: var(--color-primary);
    border-width: 3px;
    background: linear-gradient(135deg, #EFF6FF 0%, #FFFFFF 100%);
}

.pricing-card__badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-danger);
    color: var(--color-white);
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 700;
    box-shadow: var(--shadow-lg);
}

.pricing-card__label {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.pricing-card__package {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-gray-900);
    margin-bottom: 0.5rem;
}

.pricing-card__supply {
    font-size: 1rem;
    color: var(--color-gray-600);
    margin-bottom: 1.5rem;
}

.pricing-card__image {
    margin: 1.5rem 0;
}

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

.pricing-card__price {
    margin: 1.5rem 0;
}

.pricing-card__amount {
    font-size: 3rem;
    font-weight: 800;
    color: var(--color-primary);
}

.pricing-card__per {
    display: block;
    font-size: 1rem;
    color: var(--color-gray-600);
    margin-top: 0.5rem;
}

.pricing-card__total {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.pricing-card__old {
    font-size: 1.5rem;
    color: var(--color-gray-400);
    text-decoration: line-through;
}

.pricing-card__new {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-secondary);
}

.pricing-card__bonuses {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin: 1rem 0;
}

.bonus-badge {
    background: var(--color-secondary);
    color: var(--color-white);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
}

.pricing-card__payments {
    margin-top: 1.5rem;
}

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

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

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

@media (min-width: 576px) {
    .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);
    }
    
    .pricing-card:last-child {
        grid-column: auto;
        max-width: none;
    }
}

/* ========================================
   INGREDIENTS SECTION
   ======================================== */
.ingredients {
    background: var(--color-white);
}

.ingredients-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.ingredient-card {
    background: var(--color-gray-50);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--color-primary);
    transition: all var(--transition-base);
}

.ingredient-card:hover {
    background: var(--color-white);
    box-shadow: var(--shadow-md);
    transform: translateX(5px);
}

.ingredient-card__title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
}

.ingredient-card__description {
    font-size: 0.938rem;
    color: var(--color-gray-600);
    line-height: 1.6;
}

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

/* ========================================
   SCIENTIFIC EVIDENCE SECTION
   ======================================== */
.scientific {
    background: var(--color-gray-50);
}

.scientific-intro {
    max-width: 800px;
    margin: 0 auto 2rem;
    text-align: center;
}

.scientific-intro p {
    font-size: 1.125rem;
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* ========================================
   GUARANTEE SECTION
   ======================================== */
.guarantee__container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.guarantee__image {
    order: 1;
}

.guarantee__img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.guarantee__content {
    order: 2;
}

.guarantee-points {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 2rem;
}

.guarantee-point {
    display: flex;
    gap: 1rem;
}

.guarantee-point__icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    background: var(--color-secondary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
}

.guarantee-point__content h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: 0.5rem;
}

.guarantee-point__content p {
    font-size: 1rem;
    color: var(--color-gray-600);
    line-height: 1.6;
}

@media (min-width: 768px) {
    .guarantee__container {
        flex-direction: row;
        align-items: center;
        gap: 3rem;
    }
    
    .guarantee__image {
        flex: 1;
        order: 1;
    }
    
    .guarantee__content {
        flex: 1;
        order: 2;
    }
}

/* ========================================
   BENEFITS SECTION
   ======================================== */
.benefits {
    background: var(--color-white);
}

.benefits-list {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.benefit-item {
    display: flex;
    gap: 1rem;
    background: var(--color-gray-50);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.benefit-item:hover {
    background: var(--color-white);
    box-shadow: var(--shadow-md);
    transform: translateX(10px);
}

.benefit-item__icon {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    font-weight: 700;
}

.benefit-item__content h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: 0.5rem;
}

.benefit-item__content p {
    font-size: 1rem;
    color: var(--color-gray-600);
    line-height: 1.6;
}

/* ========================================
   FAQ SECTION
   ======================================== */
.faq {
    background: var(--color-gray-50);
}

/* ========================================
   FINAL CTA SECTION
   ======================================== */
.final-cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-white);
    padding: 4rem 0;
}

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

.final-cta__image {
    margin-bottom: 2rem;
    animation: finalFloat 4s ease-in-out infinite;
}

@keyframes finalFloat {
    0%, 100% {
        transform: translateY(0) scale(1);
    }
    50% {
        transform: translateY(-20px) scale(1.05);
    }
}

.final-cta__img {
    max-width: 300px;
    margin: 0 auto;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

.final-cta__title {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: 2rem;
    line-height: 1.3;
}

.final-cta__pricing {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.final-cta__old-price {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: line-through;
}

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

.final-cta__guarantee {
    margin-top: 1.5rem;
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.9);
}

@media (min-width: 768px) {
    .final-cta__title {
        font-size: 2.5rem;
    }
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--color-gray-900);
    color: var(--color-gray-300);
    padding: 3rem 0 1.5rem;
}

.footer__content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    text-align: center;
}

.footer__links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    align-items: center;
}

.footer__link {
    color: var(--color-gray-300);
    font-size: 0.938rem;
    transition: color var(--transition-fast);
}

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

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

.footer__disclaimer {
    font-size: 0.813rem;
    line-height: 1.6;
    color: var(--color-gray-400);
    max-width: 900px;
    margin: 0 auto;
}

.footer__disclaimer p {
    margin-bottom: 0.75rem;
}

.footer__social {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.social-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-gray-800);
    color: var(--color-gray-300);
    border-radius: 50%;
    transition: all var(--transition-base);
}

.social-icon:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-3px);
}

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

/* ========================================
   SCROLL TO TOP BUTTON
   ======================================== */
.scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 56px;
    height: 56px;
    background: var(--color-primary);
    color: var(--color-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: 999;
}

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

.scroll-top:hover {
    background: var(--color-primary-dark);
    transform: translateY(-5px);
}

/* ========================================
   PURCHASE NOTIFICATION POPUP
   ======================================== */
.purchase-notification {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    max-width: 350px;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 1rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(100px);
    transition: all var(--transition-base);
    z-index: 998;
}

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

.purchase-notification__content {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.purchase-notification__icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.purchase-notification__text {
    flex: 1;
    font-size: 0.875rem;
    color: var(--color-gray-700);
}

.purchase-notification__name {
    color: var(--color-primary);
    font-weight: 700;
}

.purchase-notification__close {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-500);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.purchase-notification__close:hover {
    color: var(--color-gray-900);
}

@media (max-width: 576px) {
    .purchase-notification {
        left: 1rem;
        right: 1rem;
        bottom: 1rem;
        max-width: none;
    }
}

/* ========================================
   CTA POPUP
   ======================================== */
.cta-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}

.cta-popup.show {
    display: flex;
}

.cta-popup__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.cta-popup__content {
    position: relative;
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: slideInUp 0.4s ease-out;
    z-index: 10001;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.cta-popup__close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 36px;
    height: 36px;
    background: var(--color-gray-900);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    cursor: pointer;
    transition: all var(--transition-base);
    z-index: 10002;
}

.cta-popup__close:hover {
    background: var(--color-danger);
    transform: rotate(90deg);
}

.cta-popup__body {
    padding: 2rem;
    text-align: center;
}

.cta-popup__image {
    margin-bottom: 1.5rem;
}

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

.cta-popup__title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-gray-900);
    margin-bottom: 1rem;
}

.cta-popup__text {
    font-size: 1rem;
    color: var(--color-gray-600);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.cta-popup__price {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.cta-popup__old-price {
    font-size: 1.25rem;
    color: var(--color-gray-400);
    text-decoration: line-through;
}

.cta-popup__new-price {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-danger);
}

.cta-popup__guarantee {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    margin-top: 1rem;
}

/* ========================================
   RESPONSIVE MEDIA QUERIES
   ======================================== */

/* Small phones - 480px */
@media (min-width: 480px) {
    .section__title {
        font-size: 2rem;
    }
    
    .countdown__value {
        font-size: 3rem;
    }
}

/* Large phones - 576px */
@media (min-width: 576px) {
    .section {
        padding: 4rem 0;
    }
    
    html {
        font-size: 17px;
    }
}

/* Tablets - 768px */
@media (min-width: 768px) {
    :root {
        --container-padding: 30px;
    }
    
    .section__title {
        font-size: 2.25rem;
    }
    
    html {
        font-size: 18px;
    }
}

/* Small laptops - 1024px */
@media (min-width: 1024px) {
    .section {
        padding: 5rem 0;
    }
    
    .section__title {
        font-size: 2.5rem;
    }
}

/* Desktop - 1440px */
@media (min-width: 1440px) {
    :root {
        --container-padding: 40px;
    }
}

/* ========================================
   ACCESSIBILITY & REDUCED MOTION
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ========================================
   PRINT STYLES
   ======================================== */
@media print {
    .header,
    .nav,
    .scroll-top,
    .purchase-notification,
    .cta-popup {
        display: none !important;
    }
    
    .section {
        page-break-inside: avoid;
    }
}