/* ==========================================
   NEURO FORTIS PRO - MODERN PREMIUM DESIGN
   Mobile-First Responsive Stylesheet
   ========================================== */

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

*::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: #ffffff;
    overflow-x: hidden;
    min-height: 100vh;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.3s ease;
}

ul, ol {
    list-style: none;
}

input, select, textarea {
    font-size: 16px;
    font-family: inherit;
}

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

/* ==========================================
   DESIGN SYSTEM - PREMIUM LUXURY STYLE
   Colors: Black (#000000), Gold (#D4AF37), White (#FFFFFF)
   ========================================== */
:root {
    /* Primary Colors */
    --color-primary: #000000;
    --color-secondary: #D4AF37;
    --color-accent: #B8960F;
    --color-white: #FFFFFF;
    --color-light-gray: #F5F5F5;
    --color-gray: #666666;
    --color-dark-gray: #333333;
    
    /* Gradient */
    --gradient-primary: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
    --gradient-gold: linear-gradient(135deg, #D4AF37 0%, #B8960F 100%);
    --gradient-overlay: linear-gradient(135deg, rgba(0,0,0,0.8) 0%, rgba(212,175,55,0.2) 100%);
    
    /* Shadows */
    --shadow-small: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-large: 0 8px 32px rgba(0, 0, 0, 0.2);
    --shadow-gold: 0 4px 20px rgba(212, 175, 55, 0.3);
    
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-xxl: 64px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

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

@media (min-width: 768px) {
    .container {
        padding: 0 32px;
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 40px;
    }
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.section-subtitle {
    font-size: 16px;
    color: var(--color-gray);
    font-weight: 400;
}

@media (min-width: 768px) {
    .section-title {
        font-size: 36px;
    }
    
    .section-subtitle {
        font-size: 18px;
    }
}

@media (min-width: 1024px) {
    .section-title {
        font-size: 42px;
    }
    
    .section-subtitle {
        font-size: 20px;
    }
}

/* ==========================================
   BUTTONS
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--radius-md);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    min-height: 48px;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(212, 175, 55, 0.4);
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn-cta {
    background: var(--gradient-gold);
    color: var(--color-white);
    box-shadow: var(--shadow-gold);
    font-size: 18px;
    padding: 16px 32px;
    min-height: 56px;
}

.btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(212, 175, 55, 0.5);
}

.btn-large {
    padding: 18px 40px;
    font-size: 18px;
    min-height: 60px;
}

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

/* Pulse Animation for CTA */
@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(212, 175, 55, 0.7);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(212, 175, 55, 0);
    }
}

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

/* Mobile Touch Feedback */
@media (max-width: 768px) {
    .btn:active {
        transform: scale(0.98);
    }
}

/* ==========================================
   SECTION 1: NAVIGATION MENU
   ========================================== */
.navbar {
    background: var(--color-white);
    box-shadow: var(--shadow-small);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    transition: all var(--transition-normal);
}

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

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    position: relative;
}

.nav-brand .logo {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-primary);
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: none;
    align-items: center;
    gap: var(--spacing-lg);
}

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

.nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-dark-gray);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-secondary);
    background: rgba(212, 175, 55, 0.1);
}

.nav-cta {
    padding: 10px 24px;
    min-height: 44px;
}

/* Hamburger Menu */
.hamburger {
    display: flex;
    flex-direction: column;
    gap: 5px;
    width: 30px;
    height: 30px;
    padding: 4px;
    z-index: var(--z-fixed);
}

.hamburger-line {
    width: 100%;
    height: 3px;
    background: var(--color-primary);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

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

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

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

/* Mobile Menu Overlay */
.mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: var(--z-dropdown);
}

.mobile-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Mobile Menu */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--color-white);
        flex-direction: column;
        align-items: flex-start;
        padding: 80px 32px 32px;
        box-shadow: var(--shadow-large);
        transition: right var(--transition-normal);
        z-index: var(--z-fixed);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-links {
        flex-direction: column;
        width: 100%;
        gap: 0;
    }
    
    .nav-link {
        width: 100%;
        padding: 16px 0;
        border-bottom: 1px solid var(--color-light-gray);
    }
    
    .nav-cta {
        width: 100%;
        margin-top: var(--spacing-md);
    }
}

/* Desktop Menu */
@media (min-width: 769px) {
    .hamburger {
        display: none;
    }
    
    .nav-menu {
        display: flex;
    }
    
    .nav-brand .logo {
        font-size: 26px;
    }
}

/* ==========================================
   SECTION 2: HERO SECTION
   ========================================== */
.hero-section {
    padding: 40px 0 60px;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 0;
}

.hero-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-image {
    width: 100%;
    max-width: 400px;
    order: 1;
}

.hero-image-wrapper {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.product-image {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.15));
}

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

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

.hero-badge {
    position: absolute;
    top: 10%;
    right: 5%;
    background: var(--gradient-gold);
    color: var(--color-white);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    box-shadow: var(--shadow-gold);
    animation: pulse 2s infinite;
}

.hero-content {
    order: 2;
    text-align: center;
}

.hero-tag {
    display: inline-block;
    background: rgba(212, 175, 55, 0.1);
    color: var(--color-secondary);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.hero-title {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

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

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

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
    margin: var(--spacing-lg) 0;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-dark-gray);
}

.feature-icon {
    width: 24px;
    height: 24px;
    color: var(--color-secondary);
}

.hero-cta-wrapper {
    margin-top: var(--spacing-lg);
}

.hero-guarantee {
    margin-top: var(--spacing-md);
    font-size: 14px;
    color: var(--color-gray);
}

/* Tablet & Desktop */
@media (min-width: 768px) {
    .hero-section {
        padding: 80px 0 100px;
    }
    
    .hero-container {
        flex-direction: row;
        gap: var(--spacing-xxl);
        align-items: center;
    }
    
    .hero-image {
        width: 45%;
        max-width: 500px;
        order: 1;
    }
    
    .hero-content {
        width: 55%;
        order: 2;
        text-align: left;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .hero-description {
        font-size: 18px;
    }
    
    .hero-features {
        justify-content: flex-start;
    }
    
    .hero-tag {
        font-size: 15px;
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: 56px;
    }
}

/* ==========================================
   SECTION 3: WHY CHOOSE US
   ========================================== */
.why-choose-section {
    padding: 60px 0;
    background: var(--color-white);
}

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

.badge-card {
    background: var(--color-white);
    border: 2px solid var(--color-light-gray);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.badge-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-large);
    border-color: var(--color-secondary);
}

.badge-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto var(--spacing-md);
}

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

.badge-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

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

/* Fade-in Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out forwards;
}

.fade-in-up:nth-child(1) {
    animation-delay: 0.1s;
}

.fade-in-up:nth-child(2) {
    animation-delay: 0.2s;
}

.fade-in-up:nth-child(3) {
    animation-delay: 0.3s;
}

.fade-in-up:nth-child(4) {
    animation-delay: 0.4s;
}

/* Tablet */
@media (min-width: 576px) {
    .badges-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-xl);
    }
}

/* Desktop */
@media (min-width: 992px) {
    .badges-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .badge-card:hover {
        transform: translateY(-10px) scale(1.05) rotate(2deg);
    }
}

/* ==========================================
   SECTION 4: WHAT IS NEURO FORTIS PRO
   ========================================== */
.what-is-section {
    padding: 60px 0;
    background: var(--color-light-gray);
}

.what-is-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    align-items: center;
}

.what-is-content {
    order: 2;
}

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

.what-is-highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.highlight-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-small);
}

.highlight-number {
    font-size: 32px;
    font-weight: 700;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.highlight-label {
    font-size: 13px;
    color: var(--color-gray);
    text-align: center;
    margin-top: 4px;
}

.what-is-image {
    width: 100%;
    max-width: 500px;
    order: 1;
}

.support-image {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-medium);
}

/* Tablet & Desktop */
@media (min-width: 768px) {
    .what-is-container {
        flex-direction: row;
        gap: var(--spacing-xxl);
    }
    
    .what-is-content {
        flex: 1;
        order: 1;
    }
    
    .what-is-image {
        flex: 1;
        order: 2;
    }
    
    .what-is-text {
        font-size: 17px;
    }
    
    .highlight-number {
        font-size: 36px;
    }
    
    .highlight-label {
        font-size: 14px;
    }
}

/* ==========================================
   SECTION 5: HOW IT WORKS
   ========================================== */
.how-it-works-section {
    padding: 60px 0;
    background: var(--color-white);
}

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

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

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

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

.accordion-icon {
    font-size: 28px;
    flex-shrink: 0;
}

.accordion-title {
    flex: 1;
    font-size: 17px;
    font-weight: 600;
    color: var(--color-primary);
}

.accordion-arrow {
    width: 24px;
    height: 24px;
    color: var(--color-gray);
    transition: transform var(--transition-normal);
    flex-shrink: 0;
}

.accordion-header[aria-expanded="true"] .accordion-arrow {
    transform: rotate(180deg);
}

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

.accordion-content p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    font-size: 15px;
    line-height: 1.8;
    color: var(--color-gray);
}

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

.accordion-item.active {
    border-color: var(--color-secondary);
    box-shadow: var(--shadow-small);
}

/* Desktop */
@media (min-width: 768px) {
    .accordion-header {
        padding: var(--spacing-lg);
    }
    
    .accordion-title {
        font-size: 19px;
    }
    
    .accordion-content p {
        padding: 0 var(--spacing-lg) var(--spacing-lg);
        font-size: 16px;
    }
}

/* ==========================================
   SECTION 6: CUSTOMER REVIEWS
   ========================================== */
.reviews-section {
    padding: 60px 0;
    background: var(--color-light-gray);
    position: relative;
    overflow: hidden;
}

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

.review-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-small);
    transition: all var(--transition-normal);
    position: relative;
}

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

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

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

.reviewer-info {
    flex: 1;
}

.reviewer-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 4px;
}

.reviewer-location {
    font-size: 14px;
    color: var(--color-gray);
    margin-bottom: 8px;
}

.star-rating {
    color: var(--color-secondary);
    font-size: 18px;
    letter-spacing: 2px;
}

.review-text {
    font-size: 15px;
    line-height: 1.8;
    color: var(--color-dark-gray);
    font-style: italic;
    margin-bottom: var(--spacing-md);
}

.review-badge {
    display: inline-block;
    background: rgba(212, 175, 55, 0.1);
    color: var(--color-secondary);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
}

/* Slide-in Animation */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-left {
    animation: slideInLeft 0.8s ease-out forwards;
}

.slide-in-left:nth-child(1) {
    animation-delay: 0.1s;
}

.slide-in-left:nth-child(2) {
    animation-delay: 0.3s;
}

.slide-in-left:nth-child(3) {
    animation-delay: 0.5s;
}

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

/* Desktop */
@media (min-width: 992px) {
    .reviews-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-xl);
    }
    
    .reviewer-photo {
        width: 70px;
        height: 70px;
    }
}

/* ==========================================
   SECTION 7 & 12: PRICING SECTIONS
   ========================================== */
.pricing-section {
    padding: 60px 0;
    background: var(--gradient-primary);
    color: var(--color-white);
}

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

.pricing-section .section-subtitle {
    color: rgba(255, 255, 255, 0.8);
}

.pricing-section-alt {
    background: linear-gradient(135deg, #1a1a1a 0%, #000000 100%);
}

/* Countdown Timer */
.countdown-timer {
    max-width: 500px;
    margin: 0 auto var(--spacing-xl);
    text-align: center;
}

.timer-label {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-md);
}

.timer-display {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    backdrop-filter: blur(10px);
}

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

.timer-value {
    font-size: 48px;
    font-weight: 700;
    color: var(--color-secondary);
    line-height: 1;
}

.timer-label-small {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.timer-separator {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-secondary);
}

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

.pricing-card {
    background: var(--color-white);
    color: var(--color-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-normal);
    position: relative;
    border: 2px solid transparent;
}

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

.pricing-featured {
    border: 3px solid var(--color-secondary);
    transform: scale(1.05);
    box-shadow: var(--shadow-gold);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-gold);
    color: var(--color-white);
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 700;
    box-shadow: var(--shadow-gold);
}

.pricing-label {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-gray);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.pricing-bottles {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 8px;
}

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

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

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

.pricing-per-bottle {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.per-text {
    font-size: 14px;
    color: var(--color-gray);
    font-weight: 400;
}

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

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

.price-new {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-secondary);
}

.pricing-extras {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: var(--spacing-md);
}

.extra-badge {
    background: rgba(212, 175, 55, 0.1);
    color: var(--color-secondary);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
}

.btn-pricing {
    width: 100%;
    background: var(--gradient-gold);
    color: var(--color-white);
    margin: var(--spacing-md) 0;
    box-shadow: var(--shadow-gold);
    font-size: 17px;
}

.btn-pricing:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(212, 175, 55, 0.5);
}

.btn-featured {
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
    color: var(--color-secondary);
    font-size: 18px;
}

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

.payment-logos img {
    margin: 0 auto;
    opacity: 0.8;
}

/* Rating Section */
.rating-section {
    text-align: center;
    margin-top: var(--spacing-xl);
}

.rating-image {
    margin: 0 auto var(--spacing-sm);
}

.rating-text {
    color: rgba(255, 255, 255, 0.9);
    font-size: 15px;
}

/* Tablet */
@media (min-width: 576px) {
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .timer-value {
        font-size: 56px;
    }
}

/* Desktop */
@media (min-width: 992px) {
    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-xl);
    }
    
    .pricing-featured {
        transform: scale(1.08);
    }
    
    .pricing-featured:hover {
        transform: scale(1.1) translateY(-5px);
    }
}

/* ==========================================
   SECTION 8: INGREDIENTS
   ========================================== */
.ingredients-section {
    padding: 60px 0;
    background: var(--color-white);
}

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

.ingredient-card {
    background: var(--color-light-gray);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    border-left: 4px solid var(--color-secondary);
    transition: all var(--transition-normal);
}

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

.ingredient-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.ingredient-description {
    font-size: 15px;
    line-height: 1.8;
    color: var(--color-gray);
}

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

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

/* ==========================================
   SECTION 9: SCIENTIFIC EVIDENCE
   ========================================== */
.scientific-section {
    padding: 60px 0;
    background: var(--color-light-gray);
}

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

.scientific-accordion {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.scientific-item {
    background: var(--color-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-small);
}

.scientific-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--color-white);
    cursor: pointer;
    text-align: left;
    min-height: 60px;
    transition: all var(--transition-normal);
}

.scientific-header:hover {
    background: var(--color-light-gray);
}

.scientific-header h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--color-primary);
    flex: 1;
}

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

.scientific-body p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    font-size: 15px;
    line-height: 1.8;
    color: var(--color-gray);
}

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

.scientific-item.active .scientific-header {
    background: var(--color-light-gray);
}

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

/* Desktop */
@media (min-width: 768px) {
    .scientific-header {
        padding: var(--spacing-lg);
    }
    
    .scientific-header h3 {
        font-size: 19px;
    }
    
    .scientific-body p {
        padding: 0 var(--spacing-lg) var(--spacing-lg);
        font-size: 16px;
    }
}

/* ==========================================
   SECTION 10: MONEY BACK GUARANTEE
   ========================================== */
.guarantee-section {
    padding: 60px 0;
    background: var(--color-white);
}

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

.guarantee-image {
    width: 100%;
    max-width: 400px;
    order: 1;
}

.guarantee-badge {
    width: 100%;
    filter: drop-shadow(0 10px 20px rgba(212, 175, 55, 0.3));
}

.guarantee-content {
    order: 2;
}

.guarantee-intro {
    font-size: 17px;
    line-height: 1.8;
    color: var(--color-gray);
    margin-bottom: var(--spacing-lg);
}

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

.guarantee-point {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.guarantee-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-gold);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    flex-shrink: 0;
}

.guarantee-point-content {
    flex: 1;
}

.guarantee-point-title {
    font-size: 19px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

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

/* Tablet & Desktop */
@media (min-width: 768px) {
    .guarantee-container {
        flex-direction: row;
        gap: var(--spacing-xxl);
    }
    
    .guarantee-image {
        flex: 0 0 40%;
        order: 1;
    }
    
    .guarantee-content {
        flex: 1;
        order: 2;
    }
    
    .guarantee-intro {
        font-size: 18px;
    }
    
    .guarantee-point-title {
        font-size: 20px;
    }
    
    .guarantee-point-text {
        font-size: 16px;
    }
}

/* ==========================================
   SECTION 11: BENEFITS
   ========================================== */
.benefits-section {
    padding: 60px 0;
    background: var(--color-light-gray);
}

.benefits-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    max-width: 1000px;
    margin: 0 auto;
}

.benefit-item {
    display: flex;
    gap: var(--spacing-md);
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-small);
    transition: all var(--transition-normal);
}

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

.benefit-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.benefit-icon svg {
    width: 28px;
    height: 28px;
    color: var(--color-white);
}

.benefit-content {
    flex: 1;
}

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

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

/* Tablet & Desktop */
@media (min-width: 768px) {
    .benefits-list {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }
    
    .benefit-title {
        font-size: 19px;
    }
    
    .benefit-description {
        font-size: 16px;
    }
}

/* ==========================================
   SECTION 13: FAQ
   ========================================== */
.faq-section {
    padding: 60px 0;
    background: var(--color-white);
}

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

.faq-item {
    background: var(--color-white);
    border: 2px solid var(--color-light-gray);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.faq-item:hover {
    border-color: var(--color-secondary);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-white);
    cursor: pointer;
    text-align: left;
    min-height: 60px;
    transition: all var(--transition-normal);
}

.faq-q-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-gold);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    flex-shrink: 0;
}

.faq-q-text {
    flex: 1;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primary);
}

.faq-arrow {
    width: 24px;
    height: 24px;
    color: var(--color-gray);
    transition: transform var(--transition-normal);
    flex-shrink: 0;
}

.faq-question[aria-expanded="true"] .faq-arrow {
    transform: rotate(180deg);
}

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

.faq-answer-content {
    display: flex;
    gap: var(--spacing-md);
    padding: 0 var(--spacing-md) var(--spacing-md);
    align-items: flex-start;
}

.faq-a-icon {
    width: 40px;
    height: 40px;
    background: var(--color-light-gray);
    color: var(--color-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    flex-shrink: 0;
}

.faq-answer-content p {
    flex: 1;
    font-size: 15px;
    line-height: 1.8;
    color: var(--color-gray);
    margin: 0;
}

.faq-item.active .faq-answer {
    max-height: 800px;
}

.faq-item.active {
    border-color: var(--color-secondary);
    box-shadow: var(--shadow-small);
}

/* Desktop */
@media (min-width: 768px) {
    .faq-question {
        padding: var(--spacing-lg);
    }
    
    .faq-q-text {
        font-size: 18px;
    }
    
    .faq-answer-content {
        padding: 0 var(--spacing-lg) var(--spacing-lg);
    }
    
    .faq-answer-content p {
        font-size: 16px;
    }
}

/* ==========================================
   SECTION 16: FINAL CTA
   ========================================== */
.final-cta-section {
    padding: 80px 0;
    background: var(--gradient-primary);
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.final-cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 10s ease-in-out infinite;
}

.final-cta-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.final-cta-image {
    width: 100%;
    max-width: 350px;
}

.final-product-image {
    width: 100%;
    filter: drop-shadow(0 20px 40px rgba(212, 175, 55, 0.3));
    animation: float 6s ease-in-out infinite;
}

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

.final-cta-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.final-cta-description {
    font-size: 16px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
}

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

.final-price-old {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 8px;
}

.final-price-old span {
    text-decoration: line-through;
    font-size: 20px;
}

.final-price-new {
    font-size: 20px;
    color: var(--color-white);
}

.final-price-new span {
    font-size: 42px;
    font-weight: 700;
    color: var(--color-secondary);
}

.btn-final-cta {
    background: var(--gradient-gold);
    color: var(--color-white);
    box-shadow: var(--shadow-gold);
    margin-top: var(--spacing-lg);
}

.btn-final-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(212, 175, 55, 0.5);
}

.final-cta-guarantee {
    margin-top: var(--spacing-md);
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}

/* Desktop */
@media (min-width: 768px) {
    .final-cta-content {
        flex-direction: row;
        gap: var(--spacing-xxl);
    }
    
    .final-cta-image {
        flex: 0 0 40%;
    }
    
    .final-cta-text {
        flex: 1;
        text-align: left;
    }
    
    .final-cta-title {
        font-size: 38px;
    }
    
    .final-cta-description {
        font-size: 18px;
    }
}

@media (min-width: 1024px) {
    .final-cta-title {
        font-size: 44px;
    }
}

/* ==========================================
   SECTION 17: FOOTER
   ========================================== */
.footer {
    background: var(--color-primary);
    color: var(--color-white);
    padding: 60px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

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

.footer-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-secondary);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 15px;
    transition: color var(--transition-fast);
}

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

.footer-disclaimer {
    font-size: 13px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.7);
}

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

.social-icon {
    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-normal);
}

.social-icon svg {
    width: 20px;
    height: 20px;
}

.social-icon:hover {
    background: var(--gradient-gold);
    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: 14px;
    color: rgba(255, 255, 255, 0.6);
}

/* Desktop */
@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-column {
        text-align: left;
    }
    
    .social-icons {
        justify-content: flex-start;
    }
}

/* ==========================================
   SCROLL TO TOP BUTTON
   ========================================== */
.scroll-to-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 56px;
    height: 56px;
    background: var(--gradient-gold);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-gold);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: var(--z-fixed);
}

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

.scroll-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 24px rgba(212, 175, 55, 0.5);
}

.scroll-to-top svg {
    width: 24px;
    height: 24px;
}

/* ==========================================
   PURCHASE NOTIFICATION POPUP
   ========================================== */
.purchase-notification {
    position: fixed;
    bottom: 24px;
    left: 24px;
    max-width: 320px;
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-large);
    padding: var(--spacing-md);
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-100%);
    transition: all var(--transition-normal);
    z-index: var(--z-popover);
}

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

.notification-content {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    flex: 1;
}

.notification-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-gold);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    flex-shrink: 0;
}

.notification-text {
    flex: 1;
}

.notification-text strong {
    display: block;
    font-size: 14px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 2px;
}

.notification-text p {
    font-size: 13px;
    color: var(--color-gray);
    margin: 0;
}

.notification-close {
    width: 24px;
    height: 24px;
    color: var(--color-gray);
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    transition: color var(--transition-fast);
}

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

/* Mobile */
@media (max-width: 576px) {
    .purchase-notification {
        left: 16px;
        right: 16px;
        max-width: calc(100% - 32px);
        bottom: 16px;
    }
}

/* ==========================================
   CTA POPUP (DELAY & EXIT-INTENT)
   ========================================== */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: var(--z-modal-backdrop);
}

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

.cta-popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: var(--z-modal);
}

.cta-popup.active {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

.popup-content {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-large);
    max-width: 500px;
    width: 90vw;
    position: relative;
    overflow: hidden;
}

.popup-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    background: rgba(0, 0, 0, 0.1);
    color: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    cursor: pointer;
    transition: all var(--transition-fast);
    z-index: 10;
}

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

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

.popup-title {
    font-size: 26px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.popup-text {
    font-size: 17px;
    color: var(--color-gray);
    margin-bottom: var(--spacing-lg);
}

.btn-popup {
    width: 100%;
    background: var(--gradient-gold);
    color: var(--color-white);
    box-shadow: var(--shadow-gold);
    font-size: 18px;
    padding: 16px 32px;
    min-height: 56px;
}

.btn-popup:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(212, 175, 55, 0.5);
}

/* Mobile Popup Adjustment */
@media (max-width: 576px) {
    .popup-content {
        width: 95vw;
        border-radius: var(--radius-md);
    }
    
    .popup-inner {
        padding: var(--spacing-lg);
    }
    
    .popup-title {
        font-size: 22px;
    }
    
    .popup-text {
        font-size: 16px;
    }
}

/* ==========================================
   ANIMATIONS & TRANSITIONS
   ========================================== */

/* Fade-in on scroll */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

/* ==========================================
   LOADING STATES
   ========================================== */
img[loading="lazy"] {
    opacity: 0;
    transition: opacity 0.3s;
}

img[loading="lazy"].loaded {
    opacity: 1;
}

/* ==========================================
   PRINT STYLES
   ========================================== */
@media print {
    .navbar,
    .scroll-to-top,
    .purchase-notification,
    .cta-popup,
    .popup-overlay,
    .btn {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
}

/* ==========================================
   END OF STYLESHEET
   ========================================== */