/* ===================================
   HoneyBurn Landing Page CSS
   Medical Professional Theme
   Mobile-First Responsive Design
   =================================== */

/* CSS RESET & BASE STYLES */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

:root {
    /* Medical Professional Color Palette */
    --primary-color: #1E40AF;
    --primary-light: #3B82F6;
    --primary-lighter: #93C5FD;
    --accent-color: #10B981;
    --text-dark: #1F2937;
    --text-gray: #6B7280;
    --bg-white: #FFFFFF;
    --bg-light: #F9FAFB;
    --bg-gradient: linear-gradient(135deg, #1E40AF 0%, #3B82F6 100%);
    
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 64px;
    
    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-bold: 700;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
}

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

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
    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;
}

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

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

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

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

/* SECTION STYLES */
section {
    padding: var(--spacing-xl) 0;
}

@media (min-width: 768px) {
    section {
        padding: var(--spacing-2xl) 0;
    }
}

.section-title {
    font-size: 28px;
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    text-align: center;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

@media (min-width: 768px) {
    .section-title {
        font-size: 36px;
        margin-bottom: var(--spacing-lg);
    }
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-gray);
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

@media (min-width: 768px) {
    .section-subtitle {
        font-size: 18px;
    }
}

/* ===================================
   HEADER & NAVIGATION
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--bg-white);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    transition: all var(--transition-normal);
}

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

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-sm);
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 20px;
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
}

@media (min-width: 768px) {
    .logo {
        font-size: 24px;
    }
}

.logo-icon {
    font-size: 28px;
}

/* Hamburger Menu */
.hamburger {
    display: flex;
    flex-direction: column;
    gap: 5px;
    width: 30px;
    height: 24px;
    z-index: 1001;
}

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

.hamburger.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

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

.hamburger.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

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

/* Navigation Menu */
.nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background: var(--bg-white);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-2xl) var(--spacing-md);
    list-style: none;
    transition: right var(--transition-normal);
    z-index: 999;
}

.nav-menu.active {
    right: 0;
}

.nav-menu li {
    margin-bottom: var(--spacing-md);
}

.nav-link {
    display: block;
    padding: var(--spacing-sm);
    font-size: 16px;
    font-weight: var(--font-weight-medium);
    color: var(--text-dark);
    transition: color var(--transition-fast);
}

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

.nav-cta-btn {
    display: inline-block;
    padding: 12px 24px;
    background: var(--bg-gradient);
    color: var(--bg-white);
    font-weight: var(--font-weight-bold);
    border-radius: 25px;
    transition: transform var(--transition-fast);
    margin-top: var(--spacing-sm);
}

.nav-cta-btn:hover {
    transform: scale(1.05);
}

@media (min-width: 768px) {
    .nav-menu {
        position: static;
        width: auto;
        max-width: none;
        height: auto;
        background: transparent;
        box-shadow: none;
        padding: 0;
        display: flex;
        align-items: center;
        gap: var(--spacing-lg);
    }
    
    .nav-menu li {
        margin-bottom: 0;
    }
    
    .nav-cta-btn {
        margin-top: 0;
    }
}

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

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

@media (min-width: 768px) {
    .hero-container {
        flex-direction: row;
        gap: var(--spacing-2xl);
    }
}

.hero-image {
    position: relative;
    width: 100%;
    max-width: 400px;
    animation: fadeInLeft 1s ease-out;
}

.product-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.3) 0%, transparent 70%);
    animation: pulse 3s ease-in-out infinite;
    z-index: 0;
}

.hero-product-img {
    position: relative;
    z-index: 1;
    animation: float 3s ease-in-out infinite;
}

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

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

.hero-content {
    flex: 1;
    animation: fadeInRight 1s ease-out;
}

.hero-title {
    font-size: 28px;
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 40px;
    }
}

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

.hero-title .highlight {
    background: var(--bg-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-gray);
    margin-bottom: var(--spacing-md);
}

@media (min-width: 768px) {
    .hero-description {
        font-size: 17px;
    }
}

.hero-trust-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 14px;
    color: var(--accent-color);
}

.trust-icon {
    font-size: 18px;
}

/* Animations */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* ===================================
   CTA BUTTONS
   =================================== */
.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 16px 32px;
    min-height: 50px;
    background: var(--bg-gradient);
    color: var(--bg-white);
    font-size: 16px;
    font-weight: var(--font-weight-bold);
    border-radius: 30px;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    text-align: center;
    margin-top: var(--spacing-md);
}

@media (min-width: 768px) {
    .cta-button {
        font-size: 18px;
        padding: 18px 40px;
    }
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.cta-button:active {
    transform: translateY(-1px);
}

.cta-primary {
    width: 100%;
    max-width: 400px;
}

.cta-large {
    font-size: 18px;
    padding: 20px 48px;
}

@media (min-width: 768px) {
    .cta-large {
        font-size: 20px;
    }
}

.button-arrow {
    font-size: 20px;
    transition: transform var(--transition-fast);
}

.cta-button:hover .button-arrow {
    transform: translateX(5px);
}

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

@keyframes pulse-btn {
    0%, 100% {
        box-shadow: 0 10px 15px rgba(30, 64, 175, 0.3);
    }
    50% {
        box-shadow: 0 15px 25px rgba(30, 64, 175, 0.5);
    }
}

/* ===================================
   WHY CHOOSE US SECTION
   =================================== */
.why-choose-section {
    background: var(--bg-light);
}

.badges-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

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

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

.badge-card {
    background: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all var(--transition-normal);
    opacity: 0;
    transform: translateY(30px);
}

.badge-card.animate {
    opacity: 1;
    transform: translateY(0);
    animation: slideUp 0.6s ease-out forwards;
}

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

.badge-card:hover {
    transform: translateY(-10px) rotate(2deg) scale(1.05);
    box-shadow: var(--shadow-xl);
}

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

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

.badge-title {
    font-size: 18px;
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.badge-description {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-gray);
}

@media (min-width: 768px) {
    .badge-description {
        font-size: 15px;
    }
}

/* ===================================
   WHAT IS SECTION
   =================================== */
.what-is-section {
    background: var(--bg-white);
}

.what-is-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

@media (min-width: 768px) {
    .what-is-content {
        flex-direction: row;
        align-items: center;
        gap: var(--spacing-2xl);
    }
}

.what-is-text {
    flex: 1;
}

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

@media (min-width: 768px) {
    .what-is-text p {
        font-size: 17px;
    }
}

.what-is-image {
    flex: 1;
    max-width: 100%;
}

@media (min-width: 768px) {
    .what-is-image {
        max-width: 500px;
    }
}

.what-is-image img {
    width: 100%;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
}

/* ===================================
   HOW IT WORKS - ACCORDION
   =================================== */
.how-it-works-section {
    background: var(--bg-light);
}

.accordion {
    margin-top: var(--spacing-lg);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.accordion-item {
    background: var(--bg-white);
    border-radius: 12px;
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: box-shadow var(--transition-normal);
}

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

.accordion-header {
    width: 100%;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-white);
    cursor: pointer;
    transition: background var(--transition-fast);
    min-height: 60px;
}

@media (min-width: 768px) {
    .accordion-header {
        padding: var(--spacing-lg);
        min-height: 70px;
    }
}

.accordion-header:hover {
    background: #F3F4F6;
}

.accordion-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.accordion-title {
    flex: 1;
    font-size: 16px;
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    text-align: left;
}

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

.accordion-toggle {
    font-size: 28px;
    color: var(--primary-color);
    transition: transform var(--transition-normal);
    flex-shrink: 0;
}

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

.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 var(--spacing-md) var(--spacing-md);
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-gray);
}

@media (min-width: 768px) {
    .accordion-content p {
        padding: 0 var(--spacing-lg) var(--spacing-lg);
        font-size: 16px;
    }
}

/* ===================================
   CUSTOMER REVIEWS
   =================================== */
.reviews-section {
    background: var(--bg-white);
}

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

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

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

.review-card {
    background: var(--bg-light);
    padding: var(--spacing-lg);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    opacity: 0;
    transform: scale(0.9);
}

.review-card.animate {
    opacity: 1;
    transform: scale(1);
    animation: fadeIn 0.6s ease-out forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

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

.reviewer-photo {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: var(--shadow-md);
}

@media (min-width: 768px) {
    .reviewer-photo {
        width: 70px;
        height: 70px;
    }
}

.reviewer-info {
    flex: 1;
}

.reviewer-name {
    font-size: 16px;
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    margin-bottom: 4px;
}

@media (min-width: 768px) {
    .reviewer-name {
        font-size: 18px;
    }
}

.reviewer-location {
    font-size: 13px;
    color: var(--text-gray);
    margin-bottom: var(--spacing-xs);
}

.review-stars {
    color: #F59E0B;
    font-size: 16px;
}

.review-text {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-gray);
}

@media (min-width: 768px) {
    .review-text {
        font-size: 15px;
    }
}

/* ===================================
   PRICING SECTION
   =================================== */
.pricing-section {
    background: linear-gradient(135deg, #EFF6FF 0%, #F9FAFB 100%);
}

.pricing-section-alt {
    background: linear-gradient(135deg, #F9FAFB 0%, #EFF6FF 100%);
}

.countdown-timer {
    background: var(--bg-white);
    border-radius: 16px;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-lg);
    margin: var(--spacing-lg) auto;
    max-width: 400px;
    text-align: center;
}

@media (min-width: 768px) {
    .countdown-timer {
        padding: var(--spacing-lg);
    }
}

.timer-label {
    font-size: 14px;
    font-weight: var(--font-weight-medium);
    color: var(--text-gray);
    margin-bottom: var(--spacing-sm);
}

@media (min-width: 768px) {
    .timer-label {
        font-size: 16px;
    }
}

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

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

.timer-value {
    font-size: 36px;
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    line-height: 1;
}

@media (min-width: 768px) {
    .timer-value {
        font-size: 48px;
    }
}

.timer-separator {
    font-size: 36px;
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
}

@media (min-width: 768px) {
    .timer-separator {
        font-size: 48px;
    }
}

.timer-label-small {
    font-size: 12px;
    color: var(--text-gray);
    margin-top: 4px;
}

/* Pricing Grid */
.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

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

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

.pricing-card {
    background: var(--bg-white);
    border-radius: 20px;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    text-align: center;
    transition: all var(--transition-normal);
    position: relative;
}

@media (min-width: 576px) and (max-width: 991px) {
    .pricing-card:last-child {
        grid-column: 1 / -1;
        max-width: 400px;
        margin: 0 auto;
    }
}

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

.pricing-featured {
    border: 3px solid var(--primary-color);
    background: linear-gradient(135deg, #DBEAFE 0%, #FFFFFF 100%);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-color);
    color: var(--bg-white);
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: var(--font-weight-bold);
    box-shadow: var(--shadow-md);
}

.pricing-label {
    font-size: 14px;
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.pricing-title {
    font-size: 20px;
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

@media (min-width: 768px) {
    .pricing-title {
        font-size: 22px;
    }
}

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

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

.pricing-image img {
    max-width: 150px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .pricing-image img {
        max-width: 180px;
    }
}

.pricing-price {
    margin-bottom: var(--spacing-sm);
}

.price-per-bottle {
    font-size: 36px;
    font-weight: var(--font-weight-bold);
    color: var(--accent-color);
    display: block;
}

@media (min-width: 768px) {
    .price-per-bottle {
        font-size: 42px;
    }
}

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

.pricing-total {
    margin-bottom: var(--spacing-md);
}

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

.sale-price {
    font-size: 24px;
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
}

@media (min-width: 768px) {
    .sale-price {
        font-size: 28px;
    }
}

.pricing-bonuses {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.bonus-badge {
    background: var(--accent-color);
    color: var(--bg-white);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: var(--font-weight-bold);
}

@media (min-width: 768px) {
    .bonus-badge {
        font-size: 13px;
    }
}

.pricing-button {
    display: block;
    width: 100%;
    padding: 14px 24px;
    min-height: 50px;
    background: var(--bg-gradient);
    color: var(--bg-white);
    font-size: 16px;
    font-weight: var(--font-weight-bold);
    border-radius: 25px;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    margin-top: var(--spacing-md);
}

@media (min-width: 768px) {
    .pricing-button {
        font-size: 17px;
    }
}

.pricing-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

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

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

.rating-section {
    text-align: center;
    margin-top: var(--spacing-lg);
}

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

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

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

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

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

.ingredient-card {
    background: var(--bg-light);
    padding: var(--spacing-lg);
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.ingredient-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

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

.ingredient-description {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-gray);
    margin-bottom: var(--spacing-sm);
}

@media (min-width: 768px) {
    .ingredient-description {
        font-size: 15px;
    }
}

.ingredient-benefits {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-dark);
}

/* ===================================
   SCIENTIFIC EVIDENCE
   =================================== */
.scientific-section {
    background: var(--bg-light);
}

.scientific-content {
    margin-top: var(--spacing-lg);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.evidence-item {
    background: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-lg);
}

.evidence-title {
    font-size: 18px;
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

@media (min-width: 768px) {
    .evidence-title {
        font-size: 20px;
    }
}

.evidence-item p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-gray);
}

@media (min-width: 768px) {
    .evidence-item p {
        font-size: 16px;
    }
}

/* ===================================
   GUARANTEE SECTION
   =================================== */
.guarantee-section {
    background: var(--bg-white);
}

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

@media (min-width: 768px) {
    .guarantee-content {
        flex-direction: row;
        align-items: center;
        gap: var(--spacing-2xl);
    }
}

.guarantee-image {
    max-width: 100%;
    text-align: center;
}

@media (min-width: 768px) {
    .guarantee-image {
        max-width: 300px;
    }
}

.guarantee-image img {
    margin: 0 auto;
    max-width: 250px;
}

@media (min-width: 768px) {
    .guarantee-image img {
        max-width: 300px;
    }
}

.guarantee-text {
    flex: 1;
}

.guarantee-item {
    margin-bottom: var(--spacing-lg);
}

.guarantee-item h3 {
    font-size: 18px;
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

@media (min-width: 768px) {
    .guarantee-item h3 {
        font-size: 20px;
    }
}

.guarantee-item p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-gray);
}

@media (min-width: 768px) {
    .guarantee-item p {
        font-size: 16px;
    }
}

/* ===================================
   BENEFITS SECTION
   =================================== */
.benefits-section {
    background: var(--bg-light);
}

.benefits-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

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

@media (min-width: 992px) {
    .benefits-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-lg);
    }
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    background: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.benefit-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

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

.benefit-title {
    font-size: 16px;
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

@media (min-width: 768px) {
    .benefit-title {
        font-size: 17px;
    }
}

.benefit-item p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-gray);
}

@media (min-width: 768px) {
    .benefit-item p {
        font-size: 15px;
    }
}

/* ===================================
   FAQ SECTION
   =================================== */
.faq-section {
    background: var(--bg-white);
}

.faq-accordion {
    margin-top: var(--spacing-lg);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.faq-item {
    background: var(--bg-light);
    border-radius: 12px;
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.faq-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-light);
    cursor: pointer;
    transition: background var(--transition-fast);
    min-height: 60px;
}

@media (min-width: 768px) {
    .faq-header {
        padding: var(--spacing-lg);
        min-height: 70px;
    }
}

.faq-header:hover {
    background: #E5E7EB;
}

.faq-question {
    flex: 1;
    font-size: 15px;
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    text-align: left;
}

@media (min-width: 768px) {
    .faq-question {
        font-size: 17px;
    }
}

.faq-toggle {
    font-size: 28px;
    color: var(--primary-color);
    transition: transform var(--transition-normal);
    flex-shrink: 0;
}

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

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

.faq-item.active .faq-content {
    max-height: 400px;
}

.faq-content p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-gray);
}

@media (min-width: 768px) {
    .faq-content p {
        padding: 0 var(--spacing-lg) var(--spacing-lg);
        font-size: 15px;
    }
}

/* ===================================
   FINAL CTA SECTION
   =================================== */
.final-cta-section {
    background: linear-gradient(135deg, #1E40AF 0%, #3B82F6 100%);
    color: var(--bg-white);
}

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

@media (min-width: 768px) {
    .final-cta-container {
        flex-direction: row;
        text-align: left;
        gap: var(--spacing-2xl);
    }
}

.final-cta-image {
    max-width: 300px;
    animation: float 3s ease-in-out infinite;
}

@media (min-width: 768px) {
    .final-cta-image {
        max-width: 400px;
    }
}

.final-cta-content {
    flex: 1;
}

.final-cta-title {
    font-size: 24px;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

@media (min-width: 768px) {
    .final-cta-title {
        font-size: 32px;
    }
}

@media (min-width: 1024px) {
    .final-cta-title {
        font-size: 36px;
    }
}

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

.final-regular-price {
    font-size: 18px;
    text-decoration: line-through;
    opacity: 0.8;
}

.final-special-price {
    font-size: 32px;
    font-weight: var(--font-weight-bold);
}

@media (min-width: 768px) {
    .final-special-price {
        font-size: 40px;
    }
}

.final-cta-note {
    font-size: 14px;
    margin-top: var(--spacing-md);
    opacity: 0.9;
}

@media (min-width: 768px) {
    .final-cta-note {
        font-size: 15px;
    }
}

/* ===================================
   FOOTER
   =================================== */
.footer {
    background: var(--text-dark);
    color: #D1D5DB;
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

@media (min-width: 768px) {
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
    }
}

.footer-column {
    flex: 1;
}

.footer-title {
    font-size: 16px;
    font-weight: var(--font-weight-bold);
    color: var(--bg-white);
    margin-bottom: var(--spacing-md);
}

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

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    font-size: 14px;
    color: #D1D5DB;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--bg-white);
}

.footer-disclaimer {
    flex: 2;
}

.footer-disclaimer p {
    font-size: 13px;
    line-height: 1.7;
}

@media (min-width: 768px) {
    .footer-disclaimer p {
        font-size: 14px;
    }
}

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

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

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

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

.footer-bottom p {
    font-size: 13px;
}

@media (min-width: 768px) {
    .footer-bottom p {
        font-size: 14px;
    }
}

/* ===================================
   SCROLL TO TOP BUTTON
   =================================== */
.scroll-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: var(--bg-gradient);
    color: var(--bg-white);
    border-radius: 50%;
    font-size: 24px;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 999;
}

@media (min-width: 768px) {
    .scroll-to-top {
        width: 56px;
        height: 56px;
        font-size: 28px;
    }
}

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

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

/* ===================================
   POPUP MODAL
   =================================== */
.popup-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    padding: 20px;
}

.popup-modal.active {
    opacity: 1;
    visibility: visible;
}

.popup-content {
    background: var(--bg-white);
    border-radius: 20px;
    max-width: 500px;
    width: 100%;
    position: relative;
    animation: popupSlideIn 0.4s ease-out;
    box-shadow: var(--shadow-xl);
}

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

.popup-close {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 36px;
    height: 36px;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    font-size: 24px;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.popup-close:hover {
    background: rgba(0, 0, 0, 0.2);
    transform: rotate(90deg);
}

.popup-body {
    padding: var(--spacing-xl);
    text-align: center;
}

.popup-body h3 {
    font-size: 24px;
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

@media (min-width: 768px) {
    .popup-body h3 {
        font-size: 28px;
    }
}

.popup-body p {
    font-size: 16px;
    color: var(--text-gray);
    margin-bottom: var(--spacing-md);
}

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

.popup-old-price {
    font-size: 24px;
    color: var(--text-gray);
    text-decoration: line-through;
}

.popup-new-price {
    font-size: 36px;
    font-weight: var(--font-weight-bold);
    color: var(--accent-color);
}

@media (min-width: 768px) {
    .popup-new-price {
        font-size: 42px;
    }
}

.popup-cta-button {
    display: inline-block;
    padding: 16px 40px;
    min-height: 50px;
    background: var(--bg-gradient);
    color: var(--bg-white);
    font-size: 16px;
    font-weight: var(--font-weight-bold);
    border-radius: 30px;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
}

@media (min-width: 768px) {
    .popup-cta-button {
        font-size: 18px;
    }
}

.popup-cta-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.popup-note {
    font-size: 13px;
    color: var(--text-gray);
    margin-top: var(--spacing-md);
}

/* ===================================
   PURCHASE NOTIFICATION
   =================================== */
.purchase-notification {
    position: fixed;
    bottom: 20px;
    left: 20px;
    background: var(--bg-white);
    border-radius: 12px;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-xl);
    max-width: 300px;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-100%);
    transition: all var(--transition-normal);
}

@media (min-width: 768px) {
    .purchase-notification {
        max-width: 350px;
    }
}

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

.notification-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.notification-icon {
    width: 36px;
    height: 36px;
    background: var(--accent-color);
    color: var(--bg-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.notification-text {
    flex: 1;
}

.notification-name {
    display: block;
    font-size: 14px;
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    margin-bottom: 2px;
}

.notification-message {
    display: block;
    font-size: 13px;
    color: var(--text-gray);
}

/* ===================================
   UTILITY CLASSES
   =================================== */
.text-center {
    text-align: center;
}

.hidden {
    display: none;
}

/* Reduce motion for accessibility */
@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,
    .scroll-to-top,
    .popup-modal,
    .purchase-notification {
        display: none;
    }
}