/* ===========================
   SPARTAMAX - BOLD & ENERGETIC DESIGN
   Mobile-First Responsive CSS
   =========================== */

/* ===========================
   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', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #1f2937;
    background-color: #ffffff;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

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

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

/* ===========================
   CSS VARIABLES
   =========================== */
:root {
    /* Bold & Energetic Colors */
    --color-primary: #EF4444;
    --color-secondary: #F59E0B;
    --color-success: #10B981;
    --color-dark: #1f2937;
    --color-light: #f9fafb;
    --color-white: #ffffff;
    --color-gray: #6b7280;
    --color-gray-light: #e5e7eb;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #EF4444 0%, #F59E0B 100%);
    --gradient-success: linear-gradient(135deg, #10B981 0%, #059669 100%);
    --gradient-dark: linear-gradient(135deg, #1f2937 0%, #111827 100%);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Container */
    --container-max-width: 1200px;
    --container-padding: 20px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Header Height */
    --header-height: 70px;
}

@media (min-width: 768px) {
    :root {
        --container-padding: 30px;
        --header-height: 80px;
    }
}

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

.section {
    padding: 3rem 0;
}

@media (min-width: 768px) {
    .section {
        padding: 5rem 0;
    }
}

.section__title {
    font-size: 28px;
    font-weight: 800;
    color: var(--color-dark);
    text-align: center;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.section__subtitle {
    font-size: 16px;
    color: var(--color-gray);
    text-align: center;
    margin-bottom: 2rem;
}

@media (min-width: 768px) {
    .section__title {
        font-size: 36px;
        margin-bottom: 1.5rem;
    }
    
    .section__subtitle {
        font-size: 18px;
        margin-bottom: 3rem;
    }
}

@media (min-width: 1024px) {
    .section__title {
        font-size: 42px;
    }
}

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

/* ===========================
   BUTTONS
   =========================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 14px 28px;
    min-height: 48px;
    font-size: 16px;
    font-weight: 700;
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
    cursor: pointer;
    text-align: center;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-white);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(239, 68, 68, 0.4);
}

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

.btn-hero {
    background: var(--gradient-primary);
    color: var(--color-white);
    padding: 18px 36px;
    font-size: 18px;
    border-radius: var(--radius-md);
    box-shadow: 0 6px 20px rgba(239, 68, 68, 0.4);
    width: 100%;
}

@media (min-width: 576px) {
    .btn-hero {
        width: auto;
        min-width: 280px;
    }
}

.btn-hero:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 28px rgba(239, 68, 68, 0.5);
}

.btn-pricing {
    background: var(--gradient-success);
    color: var(--color-white);
    width: 100%;
    padding: 16px;
    font-size: 18px;
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.btn-pricing:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

.btn-pricing--popular {
    background: var(--gradient-primary);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.btn-pricing--popular:hover {
    box-shadow: 0 6px 20px rgba(239, 68, 68, 0.4);
}

.btn-final-cta {
    background: var(--gradient-primary);
    color: var(--color-white);
    padding: 20px 40px;
    font-size: 20px;
    border-radius: var(--radius-md);
    box-shadow: 0 8px 24px rgba(239, 68, 68, 0.4);
    width: 100%;
    animation: pulse 2s infinite;
}

@media (min-width: 576px) {
    .btn-final-cta {
        width: auto;
    }
}

.btn-final-cta:hover {
    transform: scale(1.05);
    animation: none;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.02);
    }
}

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

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

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

.nav__logo {
    font-size: 24px;
    font-weight: 900;
    display: flex;
    align-items: center;
}

.logo-sparta {
    color: var(--color-primary);
}

.logo-max {
    color: var(--color-dark);
}

.nav__menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: var(--color-white);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    transition: right var(--transition-normal);
    z-index: 1001;
}

.nav__menu.show-menu {
    right: 0;
}

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

.nav__link {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-dark);
    transition: color var(--transition-fast);
    display: block;
    padding: 0.5rem 0;
}

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

.nav__close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 24px;
    color: var(--color-dark);
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background var(--transition-fast);
}

.nav__close:hover {
    background: var(--color-light);
}

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

.nav__cta {
    display: none;
}

.nav__toggle {
    font-size: 24px;
    color: var(--color-dark);
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.nav__toggle:hover {
    background: var(--color-light);
}

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

/* ===========================
   HERO SECTION
   =========================== */
.hero {
    margin-top: var(--header-height);
    background: linear-gradient(135deg, #fff5f5 0%, #fffbeb 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(239, 68, 68, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 20s infinite;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    50% {
        transform: translate(-50px, 50px) scale(1.1);
    }
}

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

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

.hero__image-wrapper {
    position: relative;
    animation: bounce 3s ease-in-out infinite;
}

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

.hero__img {
    width: 100%;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.2));
}

.hero__badge {
    position: absolute;
    top: -10px;
    right: -10px;
    background: var(--gradient-success);
    color: var(--color-white);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
    animation: rotate 4s linear infinite;
}

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

.hero__content {
    width: 100%;
}

.hero__title {
    font-size: 28px;
    font-weight: 900;
    color: var(--color-dark);
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero__description {
    font-size: 16px;
    color: var(--color-gray);
    margin-bottom: 1rem;
    line-height: 1.8;
}

.hero__cta {
    margin: 2rem 0;
}

.hero__features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-dark);
}

.feature-item i {
    color: var(--color-success);
    font-size: 20px;
}

@media (min-width: 768px) {
    .hero__container {
        flex-direction: row;
        align-items: center;
        gap: 3rem;
    }
    
    .hero__image,
    .hero__content {
        flex: 1;
    }
    
    .hero__title {
        font-size: 36px;
    }
    
    .hero__description {
        font-size: 18px;
    }
    
    .hero__features {
        flex-direction: row;
        gap: 2rem;
    }
}

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

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

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

.why-card {
    background: var(--color-white);
    border: 2px solid var(--color-gray-light);
    border-radius: var(--radius-md);
    padding: 2rem;
    text-align: center;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.why-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.why-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.why-card:hover::before {
    transform: scaleX(1);
}

.why-card__icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
}

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

.why-card__title {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 1rem;
}

.why-card__description {
    font-size: 14px;
    color: var(--color-gray);
    line-height: 1.6;
}

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

@media (min-width: 992px) {
    .why-choose__grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ===========================
   ABOUT SECTION
   =========================== */
.about {
    background: var(--color-light);
}

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

.about__content {
    width: 100%;
}

.about__description {
    font-size: 16px;
    color: var(--color-gray);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.about__image {
    width: 100%;
    max-width: 500px;
}

.about__image img {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

@media (min-width: 768px) {
    .about__container {
        flex-direction: row;
        gap: 3rem;
    }
    
    .about__content,
    .about__image {
        flex: 1;
    }
}

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

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

.accordion__item {
    background: var(--color-white);
    border: 2px solid var(--color-gray-light);
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.accordion__item.active {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.accordion__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    cursor: pointer;
    gap: 1rem;
    min-height: 44px;
    user-select: none;
}

.accordion__header:hover {
    background: var(--color-light);
}

.accordion__title {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-dark);
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

.accordion__title i {
    color: var(--color-primary);
    font-size: 24px;
}

.accordion__icon {
    color: var(--color-primary);
    font-size: 20px;
    transition: transform var(--transition-normal);
}

.accordion__item.active .accordion__icon {
    transform: rotate(180deg);
}

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

.accordion__item.active .accordion__content {
    max-height: 1000px;
}

.accordion__content p {
    padding: 0 1.5rem 1.5rem;
    font-size: 16px;
    color: var(--color-gray);
    line-height: 1.8;
}

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

/* ===========================
   REVIEWS SECTION
   =========================== */
.reviews {
    background: linear-gradient(135deg, #fff5f5 0%, #fffbeb 100%);
}

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

.review-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    animation: fadeInUp 0.6s ease;
}

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

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

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

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

.review-card__name {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 0.25rem;
}

.review-card__location {
    font-size: 14px;
    color: var(--color-gray);
}

.review-card__rating {
    display: flex;
    gap: 0.25rem;
    margin-bottom: 1rem;
}

.review-card__rating i {
    color: #F59E0B;
    font-size: 18px;
}

.review-card__text {
    font-size: 15px;
    color: var(--color-gray);
    line-height: 1.7;
    font-style: italic;
}

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

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

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

.section--secondary {
    background: var(--color-light);
}

.countdown {
    background: var(--gradient-dark);
    color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 3rem;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.countdown__label {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 1rem;
}

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

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

.countdown__time {
    font-size: 48px;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.countdown__separator {
    font-size: 36px;
    font-weight: 900;
    color: var(--color-primary);
}

.countdown__block .countdown__label {
    font-size: 14px;
    margin-top: 0.5rem;
    margin-bottom: 0;
}

@media (min-width: 768px) {
    .countdown__time {
        font-size: 64px;
    }
}

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

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

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

.pricing-card--popular {
    border-color: var(--color-primary);
    background: linear-gradient(135deg, #fff5f5 0%, #ffffff 100%);
    box-shadow: var(--shadow-lg);
}

.pricing-card__popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: var(--color-white);
    padding: 8px 24px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 700;
    box-shadow: var(--shadow-md);
    animation: pulse 2s infinite;
}

.pricing-card__label {
    background: var(--color-gray-light);
    color: var(--color-dark);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 700;
    display: inline-block;
    margin-bottom: 1rem;
}

.pricing-card--popular .pricing-card__label {
    background: var(--gradient-success);
    color: var(--color-white);
}

.pricing-card__bottle-info {
    margin-bottom: 1.5rem;
}

.pricing-card__bottles {
    font-size: 24px;
    font-weight: 900;
    color: var(--color-dark);
    margin-bottom: 0.5rem;
}

.pricing-card__supply {
    font-size: 14px;
    color: var(--color-gray);
}

.pricing-card__image {
    margin: 1.5rem 0;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pricing-card__image img {
    max-height: 100%;
    width: auto;
    margin: 0 auto;
}

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

.pricing-card__per-bottle {
    font-size: 48px;
    font-weight: 900;
    color: var(--color-primary);
    line-height: 1;
    display: block;
}

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

.pricing-card__total {
    margin-bottom: 1.5rem;
}

.pricing-card__old-price {
    font-size: 20px;
    color: var(--color-gray);
    text-decoration: line-through;
    margin-right: 0.5rem;
}

.pricing-card__new-price {
    font-size: 32px;
    font-weight: 900;
    color: var(--color-success);
}

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

.badge {
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
}

.badge--bonus {
    background: #FEF3C7;
    color: #F59E0B;
}

.badge--shipping {
    background: #D1FAE5;
    color: #10B981;
}

.pricing-card__payment {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-gray-light);
}

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

.pricing__rating {
    text-align: center;
}

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

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

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

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

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

.ingredient-card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    border-left: 4px solid var(--color-primary);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.ingredient-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
    border-left-width: 6px;
}

.ingredient-card__icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.ingredient-card__icon i {
    color: var(--color-white);
    font-size: 24px;
}

.ingredient-card__name {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 0.75rem;
}

.ingredient-card__description {
    font-size: 14px;
    color: var(--color-gray);
    line-height: 1.6;
    margin-bottom: 0.75rem;
}

.ingredient-card__benefits {
    font-size: 14px;
    color: var(--color-dark);
    line-height: 1.6;
}

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

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

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

.scientific__card {
    background: var(--color-light);
    border-radius: var(--radius-md);
    padding: 2rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--color-success);
}

.scientific__title {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 1rem;
}

.scientific__text {
    font-size: 16px;
    color: var(--color-gray);
    line-height: 1.8;
}

/* ===========================
   GUARANTEE SECTION
   =========================== */
.guarantee {
    background: linear-gradient(135deg, #D1FAE5 0%, #ffffff 100%);
}

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

.guarantee__image {
    width: 100%;
    max-width: 300px;
}

.guarantee__image img {
    width: 100%;
}

.guarantee__content {
    width: 100%;
}

.guarantee__intro {
    font-size: 16px;
    color: var(--color-gray);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.guarantee__item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

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

.guarantee__icon i {
    color: var(--color-white);
    font-size: 24px;
}

.guarantee__text {
    flex: 1;
}

.guarantee__subtitle {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 0.75rem;
}

.guarantee__text p {
    font-size: 16px;
    color: var(--color-gray);
    line-height: 1.8;
}

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

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

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

.benefit-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    padding: 1.5rem;
    margin-bottom: 1rem;
    background: var(--color-light);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.benefit-item:hover {
    background: var(--color-white);
    box-shadow: var(--shadow-md);
    transform: translateX(8px);
}

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

.benefit-item__icon i {
    color: var(--color-white);
    font-size: 24px;
}

.benefit-item__content {
    flex: 1;
}

.benefit-item__title {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 0.5rem;
}

.benefit-item__description {
    font-size: 14px;
    color: var(--color-gray);
    line-height: 1.6;
}

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

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

.faq__item {
    background: var(--color-white);
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.faq__item.active {
    box-shadow: var(--shadow-md);
}

.faq__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    cursor: pointer;
    gap: 1rem;
    min-height: 44px;
    user-select: none;
}

.faq__header:hover {
    background: var(--color-light);
}

.faq__question {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-dark);
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

.faq__question i {
    color: var(--color-primary);
    font-size: 24px;
}

.faq__icon {
    color: var(--color-primary);
    font-size: 20px;
    transition: transform var(--transition-normal);
}

.faq__item.active .faq__icon {
    transform: rotate(180deg);
}

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

.faq__item.active .faq__content {
    max-height: 1000px;
}

.faq__content p {
    padding: 0 1.5rem 1.5rem;
    font-size: 16px;
    color: var(--color-gray);
    line-height: 1.8;
}

/* ===========================
   FINAL CTA SECTION
   =========================== */
.final-cta {
    background: var(--gradient-dark);
    color: var(--color-white);
}

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

.final-cta__image {
    width: 100%;
    max-width: 400px;
}

.final-cta__img {
    width: 100%;
    animation: bounce 3s ease-in-out infinite;
}

.final-cta__title {
    font-size: 28px;
    font-weight: 900;
    color: var(--color-white);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

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

.final-cta__regular {
    font-size: 18px;
}

.strikethrough {
    text-decoration: line-through;
    color: var(--color-gray-light);
}

.final-cta__special {
    font-size: 24px;
    font-weight: 700;
}

.price-highlight {
    font-size: 42px;
    font-weight: 900;
    color: var(--color-secondary);
}

.final-cta__guarantee {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    font-size: 14px;
    margin-top: 1.5rem;
}

.final-cta__guarantee i {
    color: var(--color-success);
    font-size: 20px;
}

@media (min-width: 768px) {
    .final-cta__container {
        flex-direction: row;
        text-align: left;
    }
    
    .final-cta__image {
        flex: 1;
    }
    
    .final-cta__content {
        flex: 1;
    }
    
    .final-cta__title {
        font-size: 36px;
    }
    
    .final-cta__pricing {
        align-items: flex-start;
    }
}

/* ===========================
   FOOTER
   =========================== */
.footer {
    background: var(--color-dark);
    color: var(--color-white);
    padding: 3rem 0 1rem;
}

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

.footer__title {
    font-size: 24px;
    font-weight: 900;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer__description {
    font-size: 14px;
    color: var(--color-gray-light);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.footer__social {
    display: flex;
    gap: 1rem;
}

.footer__social-link {
    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);
}

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

.footer__subtitle {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer__link {
    color: var(--color-gray-light);
    font-size: 14px;
    transition: color var(--transition-fast);
}

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

.footer__disclaimer {
    background: rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    margin-bottom: 2rem;
}

.footer__disclaimer p {
    font-size: 12px;
    color: var(--color-gray-light);
    line-height: 1.6;
}

.footer__bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__copyright {
    font-size: 14px;
    color: var(--color-gray-light);
}

@media (min-width: 768px) {
    .footer__content {
        grid-template-columns: 2fr 1fr;
        gap: 3rem;
    }
}

/* ===========================
   SCROLL TO TOP BUTTON
   =========================== */
.scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 999;
}

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

.scroll-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(239, 68, 68, 0.5);
}

.scroll-top i {
    font-size: 24px;
}

/* ===========================
   PURCHASE NOTIFICATION
   =========================== */
.purchase-notification {
    position: fixed;
    bottom: -200px;
    left: 20px;
    right: 20px;
    max-width: 400px;
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 1000;
    transition: bottom var(--transition-normal);
}

.purchase-notification.show {
    bottom: 20px;
}

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

.purchase-notification__icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.purchase-notification__icon i {
    color: var(--color-white);
    font-size: 20px;
}

.purchase-notification__name {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 0.25rem;
}

.purchase-notification__location {
    font-size: 12px;
    color: var(--color-gray);
}

.purchase-notification__close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray);
    border-radius: 50%;
    transition: background var(--transition-fast);
}

.purchase-notification__close:hover {
    background: var(--color-light);
}

@media (min-width: 768px) {
    .purchase-notification {
        left: auto;
        right: 20px;
    }
}

/* ===========================
   AOS ANIMATION SUPPORT
   =========================== */
[data-aos] {
    opacity: 0;
    transition-property: opacity, transform;
}

[data-aos].aos-animate {
    opacity: 1;
}

[data-aos="fade-up"] {
    transform: translateY(30px);
}

[data-aos="fade-up"].aos-animate {
    transform: translateY(0);
}

[data-aos="fade-down"] {
    transform: translateY(-30px);
}

[data-aos="fade-down"].aos-animate {
    transform: translateY(0);
}

[data-aos="fade-right"] {
    transform: translateX(-30px);
}

[data-aos="fade-right"].aos-animate {
    transform: translateX(0);
}

[data-aos="fade-left"] {
    transform: translateX(30px);
}

[data-aos="fade-left"].aos-animate {
    transform: translateX(0);
}

[data-aos="zoom-in"] {
    transform: scale(0.9);
}

[data-aos="zoom-in"].aos-animate {
    transform: scale(1);
}

[data-aos="flip-left"] {
    transform: perspective(1000px) rotateY(-45deg);
}

[data-aos="flip-left"].aos-animate {
    transform: perspective(1000px) rotateY(0);
}

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

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