/* =================================
   Dr Ashton Gelatin Trick - styles.css
   Modern Gradient Design | Mobile-First
   ================================= */

/* =================================
   CSS RESET & BASE STYLES
   ================================= */
* {
    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: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #1f2937;
    background: #ffffff;
    overflow-x: hidden;
}

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

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

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

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

/* =================================
   CONTAINER & LAYOUT
   ================================= */
.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: 40px 0;
    overflow: hidden;
}

@media (min-width: 768px) {
    section {
        padding: 60px 0;
    }
}

@media (min-width: 1024px) {
    section {
        padding: 80px 0;
    }
}

.section-title {
    font-size: 28px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #4F46E5 0%, #06B6D4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

@media (min-width: 768px) {
    .section-title {
        font-size: 36px;
        margin-bottom: 20px;
    }
}

@media (min-width: 1024px) {
    .section-title {
        font-size: 42px;
        margin-bottom: 24px;
    }
}

.section-subtitle {
    font-size: 16px;
    text-align: center;
    color: #6b7280;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

@media (min-width: 768px) {
    .section-subtitle {
        font-size: 18px;
        margin-bottom: 40px;
    }
}

/* =================================
   NAVIGATION MENU
   ================================= */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    padding: 8px 0;
}

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

.logo a {
    font-size: 18px;
    font-weight: 800;
    background: linear-gradient(135deg, #4F46E5 0%, #06B6D4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-menu {
    display: none;
    gap: 30px;
    align-items: center;
}

@media (min-width: 768px) {
    .nav-menu {
        display: flex;
    }
}

.nav-link {
    font-size: 15px;
    font-weight: 600;
    color: #374151;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #4F46E5;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, #4F46E5 0%, #06B6D4 100%);
    transition: width 0.3s ease;
}

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

.nav-cta {
    padding: 10px 24px;
    background: linear-gradient(135deg, #4F46E5 0%, #06B6D4 100%);
    color: white;
    font-weight: 700;
    border-radius: 50px;
    font-size: 14px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(79, 70, 229, 0.4);
}

/* Hamburger Menu */
.hamburger {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    z-index: 1001;
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: linear-gradient(135deg, #4F46E5 0%, #06B6D4 100%);
    border-radius: 3px;
    transition: all 0.3s ease;
}

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

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

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

/* Mobile Menu */
@media (max-width: 767px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: white;
        flex-direction: column;
        padding: 80px 30px 30px;
        box-shadow: -5px 0 30px rgba(0, 0, 0, 0.1);
        transition: right 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
        gap: 20px;
        align-items: flex-start;
    }

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

    .nav-link {
        font-size: 18px;
        width: 100%;
        padding: 12px 0;
        border-bottom: 1px solid #f3f4f6;
    }

    .nav-cta {
        width: 100%;
        text-align: center;
        padding: 14px 24px;
        margin-top: 10px;
    }
}

/* =================================
   HERO SECTION
   ================================= */
.hero-section {
    padding-top: 100px;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(79, 70, 229, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

.hero-container {
    display: flex;
    flex-direction: column;
    gap: 40px;
    align-items: center;
}

@media (min-width: 768px) {
    .hero-container {
        flex-direction: row;
        gap: 60px;
    }
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.floating-product {
    animation: floatingProduct 3s ease-in-out infinite;
    filter: drop-shadow(0 20px 40px rgba(79, 70, 229, 0.3));
}

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

.floating-product img {
    max-width: 280px;
}

@media (min-width: 768px) {
    .floating-product img {
        max-width: 400px;
    }
}

@media (min-width: 1024px) {
    .floating-product img {
        max-width: 500px;
    }
}

.hero-content {
    flex: 1;
    text-align: center;
}

@media (min-width: 768px) {
    .hero-content {
        text-align: left;
    }
}

.hero-title {
    font-size: 32px;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #1e293b 0%, #4F46E5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 42px;
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: 52px;
    }
}

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

.hero-description {
    font-size: 16px;
    line-height: 1.8;
    color: #4b5563;
    margin-bottom: 16px;
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

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

@media (min-width: 1024px) {
    .hero-description {
        font-size: 18px;
    }
}

.hero-cta {
    animation: fadeInUp 0.8s ease 0.4s backwards;
}

/* =================================
   CTA BUTTON STYLES
   ================================= */
.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 36px;
    background: linear-gradient(135deg, #4F46E5 0%, #06B6D4 100%);
    color: white;
    font-weight: 700;
    font-size: 16px;
    border-radius: 50px;
    box-shadow: 0 10px 30px rgba(79, 70, 229, 0.4);
    transition: all 0.3s ease;
    min-height: 48px;
    justify-content: center;
}

@media (min-width: 768px) {
    .cta-button {
        padding: 18px 42px;
        font-size: 17px;
        min-height: 56px;
    }
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(79, 70, 229, 0.5);
}

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

.cta-button svg {
    transition: transform 0.3s ease;
}

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

/* =================================
   WHY CHOOSE US SECTION
   ================================= */
.why-choose-section {
    background: #ffffff;
}

.badges-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    margin-top: 40px;
}

@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: 30px;
    }
}

.badge-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    padding: 30px 24px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    opacity: 0;
    transform: translateY(30px);
    border: 2px solid transparent;
}

.badge-card.animate {
    opacity: 1;
    transform: translateY(0);
}

.badge-card:nth-child(1) { transition-delay: 0.1s; }
.badge-card:nth-child(2) { transition-delay: 0.2s; }
.badge-card:nth-child(3) { transition-delay: 0.3s; }
.badge-card:nth-child(4) { transition-delay: 0.4s; }

.badge-card:hover {
    transform: translateY(-10px) scale(1.05) rotate(2deg);
    box-shadow: 0 15px 40px rgba(79, 70, 229, 0.2);
    border-color: #4F46E5;
}

.badge-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
}

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

.badge-title {
    font-size: 16px;
    font-weight: 800;
    color: #1e293b;
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}

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

.badge-description {
    font-size: 14px;
    line-height: 1.7;
    color: #64748b;
}

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

/* =================================
   WHAT IS SECTION
   ================================= */
.what-is-section {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
}

.what-is-content {
    display: flex;
    flex-direction: column;
    gap: 40px;
    align-items: center;
    margin-top: 30px;
}

@media (min-width: 768px) {
    .what-is-content {
        flex-direction: row;
        gap: 60px;
    }
}

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

.what-is-text p {
    font-size: 16px;
    line-height: 1.8;
    color: #374151;
    margin-bottom: 20px;
}

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

.what-is-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.what-is-image img {
    max-width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

/* =================================
   HOW IT WORKS SECTION
   ================================= */
.how-it-works-section {
    background: #ffffff;
}

.accordion {
    max-width: 900px;
    margin: 40px auto 0;
}

.accordion-item {
    background: white;
    border: 2px solid #e5e7eb;
    border-radius: 15px;
    margin-bottom: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.accordion-item:hover {
    border-color: #4F46E5;
    box-shadow: 0 4px 20px rgba(79, 70, 229, 0.1);
}

.accordion-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    background: linear-gradient(135deg, #f9fafb 0%, #ffffff 100%);
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 44px;
}

@media (min-width: 768px) {
    .accordion-header {
        padding: 24px 30px;
    }
}

.accordion-header h3 {
    font-size: 16px;
    font-weight: 700;
    color: #1e293b;
    text-align: left;
}

@media (min-width: 768px) {
    .accordion-header h3 {
        font-size: 18px;
    }
}

.accordion-icon {
    font-size: 24px;
    font-weight: 300;
    color: #4F46E5;
    transition: transform 0.3s ease;
}

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

.accordion-item.active .accordion-header {
    background: linear-gradient(135deg, #4F46E5 0%, #06B6D4 100%);
}

.accordion-item.active .accordion-header h3 {
    color: white;
}

.accordion-item.active .accordion-icon {
    color: white;
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.accordion-item.active .accordion-content {
    max-height: 500px;
    padding: 20px 24px;
}

@media (min-width: 768px) {
    .accordion-item.active .accordion-content {
        padding: 24px 30px;
    }
}

.accordion-content p {
    font-size: 15px;
    line-height: 1.8;
    color: #4b5563;
}

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

/* =================================
   REVIEWS SECTION
   ================================= */
.reviews-section {
    background: linear-gradient(135deg, #e0e7ff 0%, #ddd6fe 100%);
}

.reviews-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    margin-top: 40px;
}

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

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

.review-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
    opacity: 0;
    transform: scale(0.9);
}

.review-card.animate {
    opacity: 1;
    transform: scale(1);
}

.review-card:hover {
    transform: translateY(-10px) scale(1.03);
    box-shadow: 0 20px 50px rgba(79, 70, 229, 0.2);
}

.review-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
}

.review-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.review-card:hover .review-image img {
    transform: scale(1.1);
}

.review-content {
    padding: 24px;
}

.review-rating {
    font-size: 20px;
    color: #fbbf24;
    margin-bottom: 12px;
}

.review-name {
    font-size: 18px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 4px;
}

.review-location {
    font-size: 14px;
    color: #6b7280;
    margin-bottom: 12px;
}

.review-text {
    font-size: 15px;
    line-height: 1.7;
    color: #4b5563;
}

/* =================================
   PRICING SECTION
   ================================= */
.pricing-section {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
}

.countdown-timer {
    max-width: 500px;
    margin: 0 auto 40px;
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    padding: 20px 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(239, 68, 68, 0.3);
}

.countdown-timer .timer-label {
    text-align: center;
    color: white;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 12px;
}

@media (min-width: 768px) {
    .countdown-timer .timer-label {
        font-size: 18px;
    }
}

.timer-display {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

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

.timer-value {
    font-size: 36px;
    font-weight: 900;
    color: white;
    line-height: 1;
    min-width: 60px;
    text-align: center;
}

@media (min-width: 768px) {
    .timer-value {
        font-size: 48px;
        min-width: 80px;
    }
}

.timer-label-small {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 600;
    margin-top: 4px;
}

@media (min-width: 768px) {
    .timer-label-small {
        font-size: 12px;
    }
}

.timer-colon {
    font-size: 36px;
    font-weight: 900;
    color: white;
    line-height: 1;
    margin-top: -15px;
}

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

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    margin-top: 40px;
}

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

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

.pricing-card {
    background: white;
    border-radius: 20px;
    padding: 30px 24px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    position: relative;
    border: 3px solid transparent;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.pricing-card.featured {
    background: linear-gradient(135deg, #4F46E5 0%, #06B6D4 100%);
    border-color: #fbbf24;
    transform: scale(1.05);
}

@media (max-width: 991px) {
    .pricing-card.featured {
        transform: scale(1);
    }
}

.pricing-card.featured:hover {
    transform: scale(1.08) translateY(-10px);
}

.pricing-card.featured .pricing-label,
.pricing-card.featured .pricing-bottles,
.pricing-card.featured .pricing-supply,
.pricing-card.featured .price-per-bottle,
.pricing-card.featured .price-label,
.pricing-card.featured .discounted-price {
    color: white;
}

.pricing-card.featured .original-price {
    color: rgba(255, 255, 255, 0.7);
}

.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: #fbbf24;
    color: #78350f;
    padding: 6px 20px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 15px rgba(251, 191, 36, 0.4);
}

.pricing-label {
    font-size: 14px;
    font-weight: 800;
    color: #4F46E5;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.pricing-bottles {
    font-size: 24px;
    font-weight: 900;
    color: #1e293b;
    margin-bottom: 4px;
}

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

.pricing-supply {
    font-size: 14px;
    color: #6b7280;
    margin-bottom: 20px;
}

.pricing-image {
    margin: 20px 0;
}

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

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

.pricing-price {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 20px 0;
}

.price-per-bottle {
    font-size: 42px;
    font-weight: 900;
    color: #1e293b;
    line-height: 1;
}

@media (min-width: 768px) {
    .price-per-bottle {
        font-size: 52px;
    }
}

.price-label {
    font-size: 14px;
    color: #6b7280;
    margin-top: 4px;
}

.pricing-total {
    display: flex;
    gap: 12px;
    align-items: center;
    justify-content: center;
    margin: 16px 0;
}

.original-price {
    font-size: 20px;
    color: #9ca3af;
    text-decoration: line-through;
}

.discounted-price {
    font-size: 28px;
    font-weight: 900;
    color: #ef4444;
}

.pricing-card.featured .discounted-price {
    color: white;
}

.pricing-badges {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin: 16px 0;
}

.bonus-badge,
.shipping-badge {
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.bonus-badge {
    background: #fef3c7;
    color: #78350f;
}

.shipping-badge {
    background: #d1fae5;
    color: #065f46;
}

.pricing-card.featured .bonus-badge,
.pricing-card.featured .shipping-badge {
    background: rgba(255, 255, 255, 0.9);
}

.pricing-button {
    display: block;
    width: 100%;
    margin: 20px 0;
    transition: all 0.3s ease;
}

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

.pricing-button img {
    width: 100%;
    max-width: 250px;
    margin: 0 auto;
}

.payment-logos {
    margin-top: 16px;
}

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

.rating-image {
    text-align: center;
    margin-top: 40px;
}

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

/* =================================
   INGREDIENTS SECTION
   ================================= */
.ingredients-section {
    background: #ffffff;
}

.ingredients-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    margin-top: 40px;
}

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

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

.ingredient-card {
    background: linear-gradient(135deg, #fefce8 0%, #fef3c7 100%);
    padding: 24px;
    border-radius: 15px;
    border-left: 4px solid #4F46E5;
    transition: all 0.3s ease;
}

.ingredient-card:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 30px rgba(79, 70, 229, 0.15);
}

.ingredient-card h3 {
    font-size: 17px;
    font-weight: 800;
    color: #1e293b;
    margin-bottom: 12px;
}

@media (min-width: 768px) {
    .ingredient-card h3 {
        font-size: 18px;
    }
}

.ingredient-card p {
    font-size: 14px;
    line-height: 1.7;
    color: #4b5563;
}

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

/* =================================
   SCIENTIFIC EVIDENCE SECTION
   ================================= */
.scientific-section {
    background: linear-gradient(135deg, #ede9fe 0%, #ddd6fe 100%);
}

.scientific-content {
    max-width: 900px;
    margin: 40px auto 0;
}

.scientific-item {
    background: white;
    padding: 24px;
    border-radius: 15px;
    margin-bottom: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
}

@media (min-width: 768px) {
    .scientific-item {
        padding: 30px;
    }
}

.scientific-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(79, 70, 229, 0.15);
}

.scientific-item h3 {
    font-size: 18px;
    font-weight: 700;
    color: #4F46E5;
    margin-bottom: 12px;
}

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

.scientific-item p {
    font-size: 15px;
    line-height: 1.8;
    color: #4b5563;
}

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

/* =================================
   GUARANTEE SECTION
   ================================= */
.guarantee-section {
    background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
}

.guarantee-content {
    display: flex;
    flex-direction: column;
    gap: 40px;
    align-items: center;
    margin-top: 40px;
}

@media (min-width: 768px) {
    .guarantee-content {
        flex-direction: row;
        gap: 60px;
    }
}

.guarantee-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.guarantee-image img {
    max-width: 100%;
    animation: pulse 2s ease-in-out infinite;
}

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

.guarantee-text {
    flex: 1;
}

.guarantee-item {
    margin-bottom: 24px;
}

.guarantee-item h3 {
    font-size: 18px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 12px;
}

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

.guarantee-item p {
    font-size: 15px;
    line-height: 1.8;
    color: #4b5563;
}

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

/* =================================
   BENEFITS SECTION
   ================================= */
.benefits-section {
    background: #ffffff;
}

.benefits-list {
    max-width: 800px;
    margin: 40px auto 0;
}

.benefit-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    padding: 20px;
    border-radius: 15px;
    margin-bottom: 16px;
    transition: all 0.3s ease;
}

@media (min-width: 768px) {
    .benefit-item {
        padding: 24px;
    }
}

.benefit-item:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.2);
}

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

.benefit-content h3 {
    font-size: 17px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 6px;
}

@media (min-width: 768px) {
    .benefit-content h3 {
        font-size: 18px;
    }
}

.benefit-content p {
    font-size: 14px;
    line-height: 1.7;
    color: #4b5563;
}

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

/* =================================
   FAQ SECTION
   ================================= */
.faq-section {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

.faq-accordion {
    max-width: 900px;
    margin: 40px auto 0;
}

.faq-item {
    background: white;
    border: 2px solid #e5e7eb;
    border-radius: 15px;
    margin-bottom: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: #06B6D4;
    box-shadow: 0 4px 20px rgba(6, 182, 212, 0.1);
}

.faq-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    background: #ffffff;
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 44px;
}

@media (min-width: 768px) {
    .faq-header {
        padding: 24px 30px;
    }
}

.faq-header h3 {
    font-size: 16px;
    font-weight: 700;
    color: #1e293b;
    text-align: left;
}

@media (min-width: 768px) {
    .faq-header h3 {
        font-size: 18px;
    }
}

.faq-icon {
    font-size: 24px;
    font-weight: 300;
    color: #06B6D4;
    transition: transform 0.3s ease;
}

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

.faq-item.active .faq-header {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-content {
    max-height: 600px;
    padding: 20px 24px;
}

@media (min-width: 768px) {
    .faq-item.active .faq-content {
        padding: 24px 30px;
    }
}

.faq-content p {
    font-size: 15px;
    line-height: 1.8;
    color: #4b5563;
}

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

/* =================================
   FINAL CTA SECTION
   ================================= */
.final-cta-section {
    background: linear-gradient(135deg, #4F46E5 0%, #06B6D4 100%);
    color: white;
}

.final-cta-content {
    display: flex;
    flex-direction: column;
    gap: 40px;
    align-items: center;
    text-align: center;
}

@media (min-width: 768px) {
    .final-cta-content {
        flex-direction: row;
        text-align: left;
    }
}

.final-cta-image {
    flex: 1;
    animation: bounceIn 1s ease;
}

@keyframes bounceIn {
    0% {
        transform: scale(0.8);
        opacity: 0;
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

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

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

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

.final-cta-text h2 {
    font-size: 28px;
    font-weight: 900;
    margin-bottom: 24px;
    line-height: 1.2;
}

@media (min-width: 768px) {
    .final-cta-text h2 {
        font-size: 36px;
    }
}

@media (min-width: 1024px) {
    .final-cta-text h2 {
        font-size: 42px;
    }
}

.final-cta-pricing {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 30px;
}

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

@media (min-width: 768px) {
    .final-regular-price {
        font-size: 20px;
    }
}

.final-special-price {
    font-size: 38px;
    font-weight: 900;
    color: #fbbf24;
}

@media (min-width: 768px) {
    .final-special-price {
        font-size: 48px;
    }
}

.final-cta-button {
    background: white;
    color: #4F46E5;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.final-cta-button:hover {
    background: #fbbf24;
    color: white;
}

/* =================================
   FOOTER
   ================================= */
.footer {
    background: #1e293b;
    color: white;
    padding: 40px 0 20px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 16px;
    text-align: center;
    margin-bottom: 30px;
}

@media (min-width: 768px) {
    .footer-links {
        flex-direction: row;
        justify-content: center;
        gap: 40px;
    }
}

.footer-links a {
    font-size: 15px;
    color: #94a3b8;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #06B6D4;
}

.footer-disclaimer {
    max-width: 900px;
    margin: 0 auto 30px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
}

.footer-disclaimer p {
    font-size: 13px;
    line-height: 1.7;
    color: #cbd5e1;
}

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

.footer-social {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 24px;
}

.footer-social a {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background: #06B6D4;
    transform: translateY(-5px);
}

.footer-copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-copyright p {
    font-size: 14px;
    color: #94a3b8;
}

/* =================================
   SCROLL TO TOP BUTTON
   ================================= */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #4F46E5 0%, #06B6D4 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(79, 70, 229, 0.4);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
}

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

.scroll-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(79, 70, 229, 0.5);
}

/* =================================
   CTA POPUP
   ================================= */
.cta-popup {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(150%);
    background: white;
    padding: 20px 24px;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    z-index: 999;
    max-width: 90%;
    width: 400px;
    transition: transform 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@media (min-width: 768px) {
    .cta-popup {
        padding: 24px 30px;
    }
}

.cta-popup.show {
    transform: translateX(-50%) translateY(0);
}

.popup-close {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 32px;
    height: 32px;
    background: #f3f4f6;
    color: #6b7280;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.popup-close:hover {
    background: #ef4444;
    color: white;
}

.popup-content h3 {
    font-size: 20px;
    font-weight: 800;
    color: #1e293b;
    margin-bottom: 8px;
}

@media (min-width: 768px) {
    .popup-content h3 {
        font-size: 22px;
    }
}

.popup-content p {
    font-size: 15px;
    color: #4b5563;
    margin-bottom: 16px;
}

.popup-cta {
    display: block;
    width: 100%;
    padding: 14px 24px;
    background: linear-gradient(135deg, #4F46E5 0%, #06B6D4 100%);
    color: white;
    font-weight: 700;
    text-align: center;
    border-radius: 50px;
    transition: all 0.3s ease;
    min-height: 48px;
}

.popup-cta:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.4);
}

/* =================================
   PURCHASE NOTIFICATION
   ================================= */
.purchase-notification {
    position: fixed;
    bottom: 30px;
    left: 30px;
    background: white;
    padding: 16px 20px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    z-index: 999;
    max-width: 90%;
    width: 320px;
    transform: translateX(-150%);
    transition: transform 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@media (max-width: 767px) {
    .purchase-notification {
        left: 50%;
        bottom: 20px;
        transform: translateX(-50%) translateY(150%);
    }
}

.purchase-notification.show {
    transform: translateX(0);
}

@media (max-width: 767px) {
    .purchase-notification.show {
        transform: translateX(-50%) translateY(0);
    }
}

.notification-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.notification-icon {
    font-size: 24px;
}

.notification-text {
    font-size: 13px;
    line-height: 1.5;
    color: #4b5563;
}

.notification-name {
    color: #1e293b;
    font-weight: 700;
}

.notification-location {
    color: #6b7280;
}

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

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

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

/* =================================
   PRINT STYLES
   ================================= */
@media print {
    .navbar,
    .scroll-to-top,
    .cta-popup,
    .purchase-notification,
    .hamburger {
        display: none !important;
    }
}