/* ===========================================
   SYNABOOST - MODERN COGNITIVE SUPPLEMENT
   Mobile-First Responsive Design
   =========================================== */

/* CSS VARIABLES */
:root {
    /* Primary Colors - Deep Neural Blues with Electric Accents */
    --primary-dark: #0A2463;
    --primary-medium: #3E92CC;
    --primary-light: #5AA9E6;
    --accent-orange: #FF6B35;
    --accent-gold: #FFB627;
    
    /* Neutrals */
    --white: #FFFFFF;
    --off-white: #F8F9FA;
    --light-gray: #E9ECEF;
    --medium-gray: #6C757D;
    --dark-gray: #212529;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-medium) 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent-orange) 0%, var(--accent-gold) 100%);
    --gradient-neural: linear-gradient(135deg, #0A2463 0%, #3E92CC 50%, #5AA9E6 100%);
    
    /* Typography */
    --font-display: 'Playfair Display', serif;
    --font-body: 'DM Sans', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(10, 36, 99, 0.1);
    --shadow-md: 0 4px 16px rgba(10, 36, 99, 0.15);
    --shadow-lg: 0 8px 32px rgba(10, 36, 99, 0.2);
    --shadow-xl: 0 16px 48px rgba(10, 36, 99, 0.25);
}

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

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

body {
    font-family: var(--font-body);
    color: var(--dark-gray);
    background-color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

/* TYPOGRAPHY SCALE */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--primary-dark);
}

h1 {
    font-size: 2rem; /* 32px mobile */
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: 1.75rem; /* 28px mobile */
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: 1.25rem; /* 20px mobile */
    margin-bottom: var(--spacing-sm);
}

p {
    margin-bottom: var(--spacing-sm);
    font-size: 1rem;
    line-height: 1.7;
}

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

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

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

/* GRADIENT TEXT */
.gradient-text {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* SECTION SPACING */
section {
    padding: 3rem 0;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--gradient-accent);
    margin: var(--spacing-sm) auto 0;
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--medium-gray);
    margin-top: -2rem;
    margin-bottom: 2rem;
}

/* ===========================================
   NAVIGATION
   =========================================== */
.navigation {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition-medium);
}

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

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-dark);
}

.logo-icon {
    font-size: 2rem;
}

.nav-menu {
    display: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--dark-gray);
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-accent);
    transition: var(--transition-fast);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-cta {
    background: var(--gradient-primary);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition-fast);
}

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

/* HAMBURGER MENU */
.hamburger {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--primary-dark);
    border-radius: 2px;
    transition: var(--transition-fast);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

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

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

/* MOBILE MENU */
@media (max-width: 767px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        justify-content: center;
        padding: 2rem;
        box-shadow: var(--shadow-xl);
        transition: right 0.3s ease;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-link {
        font-size: 1.25rem;
    }
}

/* ===========================================
   HERO SECTION
   =========================================== */
.hero {
    background: linear-gradient(135deg, #F8F9FA 0%, #E9ECEF 100%);
    padding: 3rem 0;
    overflow: hidden;
}

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

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

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

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

.product-bottle {
    position: relative;
    z-index: 2;
    filter: drop-shadow(0 20px 40px rgba(10, 36, 99, 0.2));
}

.hero-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(94, 169, 230, 0.3) 0%, transparent 70%);
    animation: pulse 3s ease-in-out infinite;
    z-index: 1;
}

@keyframes pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.6;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.1);
        opacity: 0.8;
    }
}

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

.hero-title {
    font-size: 2rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-description {
    font-size: 1rem;
    color: var(--medium-gray);
    margin-bottom: 1rem;
}

/* CTA BUTTONS */
.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    background: var(--gradient-accent);
    color: var(--white);
    padding: 1rem 2rem;
    border-radius: 50px;
    font-size: 1.125rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--transition-fast);
    text-align: center;
    min-height: 48px;
}

.cta-button:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

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

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

.cta-icon {
    font-size: 1.5rem;
    transition: var(--transition-fast);
}

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

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

@keyframes ctaPulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(255, 107, 53, 0.7);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(255, 107, 53, 0);
    }
}

/* ===========================================
   WHY CHOOSE US - BADGES
   =========================================== */
.why-choose {
    background: var(--white);
}

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

.badge-card {
    background: var(--white);
    border: 2px solid var(--light-gray);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    transition: var(--transition-medium);
    opacity: 0;
    transform: translateY(30px);
}

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

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

.badge-card:hover {
    transform: translateY(-10px) rotate(2deg) scale(1.05);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

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

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

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

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

/* ===========================================
   WHAT IS SYNABOOST
   =========================================== */
.what-is {
    background: var(--off-white);
}

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

.what-is-text p {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--medium-gray);
}

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

.what-is-image img {
    border-radius: 20px;
    box-shadow: var(--shadow-md);
}

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

.accordion {
    max-width: 800px;
    margin: 0 auto;
}

.accordion-item {
    background: var(--white);
    border: 2px solid var(--light-gray);
    border-radius: 12px;
    margin-bottom: 1rem;
    overflow: hidden;
    transition: var(--transition-fast);
}

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

.accordion-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary-dark);
    min-height: 48px;
}

.accordion-title {
    flex: 1;
}

.accordion-icon {
    font-size: 1.5rem;
    font-weight: 300;
    transition: var(--transition-fast);
}

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

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

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

.accordion-content p {
    padding: 0 1.25rem 1.25rem;
    color: var(--medium-gray);
}

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

.reviews-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.review-card {
    background: var(--white);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: var(--shadow-md);
    opacity: 0;
    transform: scale(0.9);
    transition: var(--transition-medium);
}

.review-card.animate {
    animation: fadeInScale 0.6s ease forwards;
}

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

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

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

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

.reviewer-name {
    font-size: 1.125rem;
    margin-bottom: 0.25rem;
}

.reviewer-location {
    font-size: 0.875rem;
    color: var(--medium-gray);
}

.review-rating {
    margin-bottom: 1rem;
}

.star {
    color: var(--accent-gold);
    font-size: 1.25rem;
}

.review-text {
    font-size: 0.9375rem;
    color: var(--medium-gray);
    line-height: 1.7;
}

/* ===========================================
   PRICING SECTION
   =========================================== */
.pricing {
    background: linear-gradient(135deg, #0A2463 0%, #3E92CC 100%);
    color: var(--white);
}

.pricing .section-title,
.pricing .section-subtitle {
    color: var(--white);
}

.pricing .section-title::after {
    background: var(--gradient-accent);
}

/* COUNTDOWN TIMER */
.countdown-timer {
    max-width: 400px;
    margin: 0 auto 3rem;
    text-align: center;
}

.timer-label {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.timer-display {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 1.5rem;
    border-radius: 15px;
    backdrop-filter: blur(10px);
}

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

.timer-value {
    font-size: 3rem;
    font-weight: 700;
    font-family: var(--font-display);
    line-height: 1;
}

.timer-label-small {
    font-size: 0.875rem;
    margin-top: 0.25rem;
    opacity: 0.8;
}

.timer-separator {
    font-size: 3rem;
    font-weight: 700;
    opacity: 0.5;
}

/* PRICING GRID */
.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.pricing-card {
    background: var(--white);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    position: relative;
    transition: var(--transition-medium);
    box-shadow: var(--shadow-md);
}

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

.pricing-featured {
    border: 3px solid var(--accent-orange);
    transform: scale(1);
}

.pricing-featured:hover {
    transform: scale(1.05) translateY(-10px);
}

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

.pricing-label {
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 0.5rem;
}

.pricing-package {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 0.25rem;
}

.pricing-supply {
    font-size: 0.9375rem;
    color: var(--medium-gray);
    margin-bottom: 1.5rem;
}

.pricing-image {
    width: 100%;
    max-width: 200px;
    margin: 0 auto 1.5rem;
}

.pricing-per-bottle {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 0.5rem;
}

.per-bottle-text {
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--medium-gray);
}

.pricing-total {
    margin-bottom: 1rem;
}

.price-old {
    font-size: 1.25rem;
    color: var(--medium-gray);
    text-decoration: line-through;
    margin-right: 0.5rem;
}

.price-new {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-orange);
}

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

.bonus-badge {
    background: linear-gradient(135deg, #10B981 0%, #059669 100%);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
}

.pricing-button {
    display: block;
    margin: 1.5rem 0;
}

.pricing-button img {
    width: 100%;
    max-width: 250px;
    margin: 0 auto;
    cursor: pointer;
    transition: var(--transition-fast);
}

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

.payment-logos img {
    max-width: 300px;
    margin: 0 auto;
    opacity: 0.8;
}

.rating-image {
    text-align: center;
    margin-top: 2rem;
}

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

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

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

.ingredient-card {
    background: var(--white);
    border-radius: 15px;
    padding: 1.5rem;
    border-left: 4px solid var(--primary-medium);
    transition: var(--transition-fast);
}

.ingredient-card:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-md);
    border-left-color: var(--accent-orange);
}

.ingredient-name {
    color: var(--primary-dark);
    margin-bottom: 0.75rem;
}

.ingredient-description {
    font-size: 0.9375rem;
    color: var(--medium-gray);
    margin-bottom: 0.75rem;
    line-height: 1.7;
}

.ingredient-benefits {
    font-size: 0.875rem;
    color: var(--primary-medium);
    font-weight: 600;
}

/* ===========================================
   SCIENTIFIC EVIDENCE
   =========================================== */
.scientific-evidence {
    background: var(--white);
}

.evidence-intro {
    max-width: 800px;
    margin: 0 auto 2rem;
    text-align: center;
    color: var(--medium-gray);
}

.evidence-accordion {
    max-width: 800px;
    margin: 0 auto;
}

.evidence-item {
    background: var(--off-white);
    border-radius: 12px;
    margin-bottom: 1rem;
    overflow: hidden;
}

.evidence-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary-dark);
    min-height: 48px;
}

.evidence-icon {
    font-size: 1.5rem;
    transition: var(--transition-fast);
}

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

.evidence-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.evidence-item.active .evidence-body {
    max-height: 500px;
}

.evidence-body p {
    padding: 0 1.25rem 1.25rem;
    color: var(--medium-gray);
    font-size: 0.9375rem;
}

/* ===========================================
   MONEY BACK GUARANTEE
   =========================================== */
.guarantee {
    background: var(--off-white);
}

.guarantee-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.guarantee-image {
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
}

.guarantee-image img {
    filter: drop-shadow(0 10px 30px rgba(10, 36, 99, 0.2));
}

.guarantee-text {
    width: 100%;
}

.guarantee-point {
    background: var(--white);
    border-radius: 15px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--accent-orange);
}

.guarantee-point h3 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
    color: var(--primary-dark);
}

.guarantee-point p {
    color: var(--medium-gray);
    font-size: 0.9375rem;
}

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

.benefits-list {
    max-width: 800px;
    margin: 0 auto;
}

.benefit-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 1.5rem;
    background: var(--off-white);
    border-radius: 12px;
    transition: var(--transition-fast);
}

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

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

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

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

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

.faq-accordion {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border-radius: 12px;
    margin-bottom: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary-dark);
    min-height: 48px;
}

.faq-icon {
    font-size: 1.5rem;
    transition: var(--transition-fast);
    flex-shrink: 0;
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 600px;
}

.faq-answer p {
    padding: 0 1.25rem 1.25rem;
    color: var(--medium-gray);
    font-size: 0.9375rem;
}

/* ===========================================
   FINAL CTA
   =========================================== */
.final-cta {
    background: linear-gradient(135deg, #F8F9FA 0%, #E9ECEF 100%);
    padding: 4rem 0;
}

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

.final-cta-image {
    width: 100%;
    max-width: 350px;
    animation: floatSlow 8s ease-in-out infinite;
}

@keyframes floatSlow {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-15px) rotate(2deg);
    }
}

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

.final-cta-title {
    font-size: 2rem;
    margin-bottom: 2rem;
}

.final-cta-pricing {
    margin-bottom: 2rem;
}

.final-price-regular {
    font-size: 1rem;
    color: var(--medium-gray);
    margin-bottom: 0.5rem;
}

.final-price-regular span {
    text-decoration: line-through;
}

.final-price-special {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-orange);
}

.final-price-special span {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.final-cta-note {
    margin-top: 1rem;
    font-size: 0.9375rem;
    color: var(--medium-gray);
}

/* ===========================================
   FOOTER
   =========================================== */
.footer {
    background: var(--dark-gray);
    color: var(--white);
    padding: 3rem 0 2rem;
}

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

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.footer-links a {
    color: var(--white);
    opacity: 0.8;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--primary-light);
}

.footer-separator {
    opacity: 0.5;
}

.footer-disclaimer {
    max-width: 800px;
    margin: 0 auto 2rem;
    font-size: 0.875rem;
    opacity: 0.7;
    line-height: 1.7;
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

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

.social-link:hover {
    background: var(--primary-medium);
    transform: translateY(-3px);
}

.footer-copyright {
    font-size: 0.875rem;
    opacity: 0.6;
}

/* ===========================================
   SCROLL TO TOP BUTTON
   =========================================== */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-fast);
    z-index: 999;
}

.scroll-to-top.visible {
    display: flex;
}

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

/* ===========================================
   PURCHASE NOTIFICATION POPUP
   =========================================== */
.purchase-popup {
    position: fixed;
    bottom: 30px;
    left: 20px;
    background: var(--white);
    padding: 1rem 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow-xl);
    display: none;
    z-index: 998;
    max-width: 300px;
    animation: slideInLeft 0.5s ease;
}

@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.purchase-popup.show {
    display: block;
}

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

.popup-icon {
    font-size: 2rem;
}

.popup-text {
    font-size: 0.875rem;
    color: var(--dark-gray);
}

/* ===========================================
   CTA POPUP
   =========================================== */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    z-index: 1999;
    backdrop-filter: blur(5px);
}

.popup-overlay.show {
    display: block;
}

.cta-popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background: var(--white);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    max-width: 400px;
    width: 90%;
    display: none;
    z-index: 2000;
    animation: popupAppear 0.3s ease forwards;
}

@keyframes popupAppear {
    to {
        transform: translate(-50%, -50%) scale(1);
    }
}

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

.popup-close {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--medium-gray);
    cursor: pointer;
    line-height: 1;
}

.popup-close:hover {
    color: var(--accent-orange);
}

.popup-body h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

.popup-body p {
    font-size: 1rem;
    color: var(--medium-gray);
    margin-bottom: 1.5rem;
}

.popup-cta {
    display: block;
    background: var(--gradient-accent);
    color: var(--white);
    padding: 1rem 2rem;
    border-radius: 50px;
    font-size: 1.125rem;
    font-weight: 600;
    text-align: center;
    transition: var(--transition-fast);
}

.popup-cta:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

/* ===========================================
   TABLET STYLES (min-width: 576px)
   =========================================== */
@media (min-width: 576px) {
    .container {
        padding-left: 30px;
        padding-right: 30px;
    }
    
    .badges-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
    
    .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .ingredients-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===========================================
   TABLET/DESKTOP (min-width: 768px)
   =========================================== */
@media (min-width: 768px) {
    section {
        padding: 4rem 0;
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2.25rem;
    }
    
    .nav-menu {
        display: flex;
    }
    
    .hamburger {
        display: none;
    }
    
    .hero-container {
        flex-direction: row;
        gap: 3rem;
    }
    
    .hero-image {
        max-width: 500px;
    }
    
    .hero-content {
        flex: 1;
        text-align: left;
    }
    
    .hero-title {
        font-size: 2.75rem;
    }
    
    .what-is-content {
        flex-direction: row;
        align-items: center;
    }
    
    .what-is-text,
    .what-is-image {
        flex: 1;
    }
    
    .guarantee-content {
        flex-direction: row;
        align-items: center;
        gap: 3rem;
    }
    
    .guarantee-image {
        max-width: 350px;
    }
    
    .guarantee-text {
        flex: 1;
    }
    
    .final-cta-content {
        flex-direction: row;
        gap: 3rem;
    }
    
    .final-cta-text {
        flex: 1;
        text-align: left;
    }
    
    .final-cta-title {
        font-size: 2.5rem;
    }
    
    .footer-links {
        gap: 2rem;
    }
}

/* ===========================================
   DESKTOP (min-width: 992px)
   =========================================== */
@media (min-width: 992px) {
    h1 {
        font-size: 3rem;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
    
    .badges-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .reviews-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .hero-title {
        font-size: 3.5rem;
    }
}

/* ===========================================
   LARGE DESKTOP (min-width: 1200px)
   =========================================== */
@media (min-width: 1200px) {
    .container {
        padding-left: 40px;
        padding-right: 40px;
    }
    
    .hero-title {
        font-size: 4rem;
    }
    
    .final-cta-title {
        font-size: 3rem;
    }
}

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

/* Focus states for accessibility */
a:focus,
button:focus {
    outline: 2px solid var(--primary-medium);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .navigation,
    .scroll-to-top,
    .purchase-popup,
    .cta-popup,
    .popup-overlay {
        display: none !important;
    }
}