/* ================================
   LANDING PAGE DOTT. CRISTIAN GANDINI
   Biologo Nutrizionista
   ================================ */

/* === ROOT VARIABLES === */
:root {
    /* Colors from logo analysis */
    --primary-blue: #4A90E2;
    --dark-blue: #2C5F8D;
    --accent-orange: #FF6B35;
    --neutral-gray: #6B7280;
    --dark-gray: #1F2937;
    --light-gray: #F3F4F6;
    --white: #FFFFFF;
    --black: #111827;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* === RESET & BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-base);
}

ul {
    list-style: none;
}

/* === UTILITIES === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.highlight {
    color: var(--primary-blue);
    font-weight: 700;
}

.section-label {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

.section-header {
    margin-bottom: var(--spacing-lg);
}

.section-header.center {
    text-align: center;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    line-height: 1.2;
    color: var(--black);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--neutral-gray);
    max-width: 700px;
    margin: 0 auto;
}

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: center;
    white-space: nowrap;
}

.btn i {
    font-size: 1.25rem;
}

.btn-primary {
    background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--dark-gray);
    border-color: var(--neutral-gray);
}

.btn-secondary:hover {
    background: var(--light-gray);
    border-color: var(--dark-gray);
}

.btn-outline {
    background: transparent;
    color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.btn-outline:hover {
    background: var(--primary-blue);
    color: var(--white);
}

.btn-lg {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
}

.btn-cta-nav {
    background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    box-shadow: var(--shadow-md);
}

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

/* === NAVIGATION === */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

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

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo img {
    height: 50px;
    width: auto;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-blue);
    transition: var(--transition-base);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--dark-gray);
    border-radius: 3px;
    transition: var(--transition-base);
}

/* === HERO SECTION === */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, #F0F9FF 0%, #FFFFFF 100%);
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.hero-content {
    animation: fadeInLeft 0.8s ease;
}

.hero-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: var(--white);
    padding: 0.5rem 1.25rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-md);
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 900;
    line-height: 1.1;
    color: var(--black);
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2.5vw, 1.375rem);
    color: var(--neutral-gray);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.hero-social-proof {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.proof-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--neutral-gray);
}

.proof-item i {
    color: var(--primary-blue);
}

.hero-image {
    position: relative;
    animation: fadeInRight 0.8s ease;
}

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

.hero-badge-floating {
    position: absolute;
    bottom: 20px;
    left: -20px;
    background: var(--white);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 1rem;
    animation: float 3s ease-in-out infinite;
}

.hero-badge-floating i {
    font-size: 2rem;
    color: var(--accent-orange);
}

.hero-badge-floating strong {
    display: block;
    font-size: 0.875rem;
    color: var(--black);
}

.hero-badge-floating span {
    display: block;
    font-size: 0.75rem;
    color: var(--neutral-gray);
}

/* === PAIN POINTS SECTION === */
.pain-points {
    padding: var(--spacing-xl) 0;
    background: var(--white);
}

.symptoms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.symptom-card {
    background: var(--white);
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: var(--transition-base);
}

.symptom-card:hover {
    border-color: var(--primary-blue);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.symptom-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.symptom-icon i {
    font-size: 1.75rem;
    color: var(--white);
}

.symptom-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: var(--spacing-sm);
}

.symptom-card p {
    color: var(--neutral-gray);
    font-size: 0.95rem;
}

.cta-box {
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    color: var(--white);
}

.cta-box-text {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
}

/* === METHOD SECTION === */
.method {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, #F0F9FF 0%, #E0F2FE 50%, #FFFFFF 100%);
}

.method-explanation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    align-items: center;
}

.method-visual img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.method-text h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--black);
}

.method-text > p {
    font-size: 1.125rem;
    color: var(--neutral-gray);
    margin-bottom: var(--spacing-md);
}

.nervous-system {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.ns-item {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    display: flex;
    gap: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.ns-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ns-item.simpatico .ns-icon {
    background: linear-gradient(135deg, #FCD34D, #F59E0B);
}

.ns-item.parasimpatico .ns-icon {
    background: linear-gradient(135deg, #34D399, #059669);
}

.ns-icon i {
    font-size: 1.5rem;
    color: var(--white);
}

.ns-item h4 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 0.25rem;
}

.ns-item p {
    font-size: 0.95rem;
    color: var(--neutral-gray);
}

.method-highlight {
    background: var(--primary-blue);
    color: var(--white);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.method-highlight i {
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 0.25rem;
}

.how-it-works {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
}

.hw-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--black);
}

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

.step {
    display: flex;
    gap: var(--spacing-md);
    position: relative;
}

.step::after {
    content: '';
    position: absolute;
    left: 29px;
    top: 60px;
    bottom: -40px;
    width: 2px;
    background: linear-gradient(180deg, var(--primary-blue), transparent);
}

.step:last-child::after {
    display: none;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
}

.step-content {
    flex: 1;
}

.step-content h4 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: var(--spacing-sm);
}

.step-content p {
    color: var(--neutral-gray);
    margin-bottom: var(--spacing-md);
}

.step-detail {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-blue);
    font-weight: 600;
    font-size: 0.9rem;
}

.step-technologies {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
}

.tech-badge {
    background: var(--light-gray);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 1;
    min-width: 200px;
}

.tech-badge i {
    font-size: 1.5rem;
    color: var(--primary-blue);
}

.tech-badge span {
    font-size: 0.85rem;
    line-height: 1.4;
}

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

/* === ABOUT SECTION === */
.about {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.95) 0%, rgba(44, 95, 141, 0.95) 100%),
                url('https://www.genspark.ai/api/files/s/Glt0kKk2') center/cover no-repeat;
    background-attachment: fixed;
    position: relative;
    color: var(--white);
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.92) 0%, rgba(44, 95, 141, 0.92) 100%);
    z-index: 1;
}

.about .container {
    position: relative;
    z-index: 2;
}

.about-content {
    display: block;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.about-image {
    display: none;
}

.about-img-main {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.about-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: var(--white);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.about-badge i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.about-badge span {
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.3;
}

.about-intro {
    font-size: 1.25rem;
    color: var(--white);
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
}

.about .section-label {
    color: var(--white);
    opacity: 0.9;
}

.about .section-title {
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

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

.credential-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
}

.credential-item i {
    font-size: 1.75rem;
    color: var(--white);
    flex-shrink: 0;
}

.credential-item strong {
    display: block;
    font-size: 1.125rem;
    color: var(--white);
    margin-bottom: 0.25rem;
}

.credential-item p {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.9);
}

.about-philosophy {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: var(--white);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.about-philosophy h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--white);
}

.about-philosophy p {
    font-size: 1rem;
    line-height: 1.6;
    opacity: 0.95;
}

.about-differentiator {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255, 107, 53, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 107, 53, 0.3);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.about-differentiator i {
    font-size: 1.75rem;
    color: var(--accent-orange);
    flex-shrink: 0;
}

.about-differentiator p {
    color: var(--white);
    opacity: 0.95;
}

.about .btn-outline {
    border-color: var(--white);
    color: var(--white);
}

.about .btn-outline:hover {
    background: var(--white);
    color: var(--primary-blue);
}

/* === TARGET SECTION === */
.target {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, var(--light-gray) 0%, var(--white) 100%);
}

.target-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.target-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    position: relative;
}

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

.target-card.featured {
    border: 3px solid var(--primary-blue);
}

.target-badge {
    position: absolute;
    top: -15px;
    right: 20px;
    background: linear-gradient(135deg, var(--accent-orange), #FF8C42);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.target-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.target-icon i {
    font-size: 2rem;
    color: var(--white);
}

.target-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: var(--spacing-sm);
}

.target-card p {
    color: var(--neutral-gray);
    margin-bottom: var(--spacing-md);
}

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

.target-benefits li {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.95rem;
    color: var(--neutral-gray);
}

.target-benefits i {
    color: var(--primary-blue);
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.not-for {
    background: #FEF3C7;
    border-left: 4px solid #F59E0B;
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    text-align: center;
}

.not-for h3 {
    font-size: 1.25rem;
    color: #92400E;
    margin-bottom: var(--spacing-sm);
}

.not-for p {
    color: #78350F;
}

/* === PRICING SECTION === */
.pricing {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, #F0F9FF 0%, #E0F2FE 50%, #FFFFFF 100%);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.price-card {
    background: var(--white);
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: var(--transition-base);
    position: relative;
    display: flex;
    flex-direction: column;
}

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

.price-card.featured {
    border-color: var(--primary-blue);
    border-width: 3px;
    box-shadow: var(--shadow-lg);
}

.price-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--accent-orange), #FF8C42);
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
}

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

.price-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 0.5rem;
}

.price-subtitle {
    font-size: 0.9rem;
    color: var(--neutral-gray);
}

.price-amount {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.price-amount .currency {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--neutral-gray);
    vertical-align: top;
}

.price-amount .amount {
    font-size: 4rem;
    font-weight: 900;
    color: var(--primary-blue);
    line-height: 1;
}

.price-save {
    display: block;
    font-size: 0.875rem;
    color: var(--accent-orange);
    font-weight: 600;
    margin-top: 0.5rem;
}

.price-features {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: var(--spacing-md);
}

.price-features li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.95rem;
    color: var(--neutral-gray);
}

.price-features i {
    color: var(--primary-blue);
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.price-note {
    text-align: center;
    font-size: 0.875rem;
    color: var(--neutral-gray);
    font-style: italic;
    padding: var(--spacing-sm) 0;
    border-top: 1px solid var(--light-gray);
    margin-bottom: var(--spacing-md);
}

.price-card .btn {
    width: 100%;
    justify-content: center;
}

.pricing-extra {
    margin-top: var(--spacing-lg);
}

.pricing-extra h3 {
    font-size: 1.75rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-md);
}

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

.extra-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--light-gray);
    border-radius: var(--radius-md);
}

.extra-info h4 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 0.25rem;
}

.extra-info p {
    font-size: 0.9rem;
    color: var(--neutral-gray);
}

.extra-price {
    font-size: 2rem;
    font-weight: 900;
    color: var(--primary-blue);
    flex-shrink: 0;
}

.pricing-guarantee {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    max-width: 800px;
    margin: var(--spacing-lg) auto 0;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, #DBEAFE, #BFDBFE);
    border-radius: var(--radius-md);
}

.guarantee-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.guarantee-icon i {
    font-size: 1.75rem;
    color: var(--white);
}

.pricing-guarantee h4 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 0.25rem;
}

.pricing-guarantee p {
    font-size: 0.95rem;
    color: var(--neutral-gray);
}

/* === TECHNOLOGY SECTION === */
.technology {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, var(--light-gray) 0%, var(--white) 100%);
}

.tech-showcase {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.tech-item {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-lg);
    align-items: center;
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.tech-item.reverse {
    grid-template-columns: 1.5fr 1fr;
}

.tech-item.reverse .tech-img {
    order: 2;
}

.tech-img {
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
}

.tech-image-placeholder {
    width: 100%;
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.tech-image-placeholder i {
    font-size: 5rem;
    color: rgba(255, 255, 255, 0.5);
}

.tech-content h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 0.25rem;
}

.tech-content h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-md);
}

.tech-content p {
    color: var(--neutral-gray);
    margin-bottom: var(--spacing-md);
}

.tech-benefits {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem;
    margin-bottom: var(--spacing-md);
}

.tech-benefits li {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.95rem;
    color: var(--neutral-gray);
}

.tech-benefits i {
    color: var(--primary-blue);
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.tech-duration {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--light-gray);
    border-radius: var(--radius-md);
    font-weight: 600;
    color: var(--dark-gray);
}

.tech-duration i {
    color: var(--primary-blue);
}

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

.tech-cta-content {
    text-align: center;
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.tech-cta-content h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.tech-cta-content p {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.9;
}

.tech-cta-content .btn-primary {
    background: var(--white);
    color: var(--primary-blue);
}

.tech-cta-content .btn-primary:hover {
    background: var(--light-gray);
}

/* === FAQ SECTION === */
.faq {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, #F0F9FF 0%, #E0F2FE 50%, #FFFFFF 100%);
}

.faq-grid {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.faq-item {
    background: var(--white);
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition-base);
}

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

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    cursor: pointer;
    user-select: none;
}

.faq-question h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--black);
    flex: 1;
}

.faq-question i {
    font-size: 1.25rem;
    color: var(--primary-blue);
    transition: var(--transition-base);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

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

.faq-item.active .faq-answer {
    max-height: 1000px;
}

.faq-answer p,
.faq-answer ul {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--neutral-gray);
    line-height: 1.7;
}

.faq-answer ul {
    padding-left: calc(var(--spacing-md) + 1.5rem);
    list-style: disc;
}

.faq-answer ul li {
    margin-bottom: 0.5rem;
}

/* === CTA FINAL SECTION === */
.cta-final {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: var(--white);
}

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

.cta-final-content h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 900;
    margin-bottom: var(--spacing-md);
}

.cta-final-content > p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
}

.cta-final-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
}

.cta-final-buttons .btn-primary {
    background: var(--white);
    color: var(--primary-blue);
}

.cta-final-buttons .btn-primary:hover {
    background: var(--light-gray);
}

.cta-final-buttons .btn-outline {
    border-color: var(--white);
    color: var(--white);
}

.cta-final-buttons .btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
}

.cta-final-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    font-size: 0.95rem;
    opacity: 0.9;
}

.cta-final-note i {
    font-size: 1.25rem;
}

/* === FOOTER === */
.footer {
    background: var(--black);
    color: var(--white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-col h4 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.footer-logo {
    height: 50px;
    margin-bottom: var(--spacing-md);
    filter: brightness(0) invert(1);
}

.footer-col p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

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

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

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

.footer-social i {
    font-size: 1.25rem;
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-col ul li {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    transition: var(--transition-base);
}

.footer-col ul li:hover {
    color: var(--white);
    padding-left: 5px;
}

.footer-col ul li i {
    color: var(--primary-blue);
    margin-right: 0.5rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.8);
}

.footer-bottom a:hover {
    color: var(--primary-blue);
}

.footer-credits {
    margin-top: 0.5rem;
}

/* === FLOATING ELEMENTS === */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #25D366, #128C7E);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: var(--shadow-xl);
    z-index: 999;
    transition: var(--transition-base);
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.5);
}

.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 110px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 1.25rem;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
}

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

.scroll-top:hover {
    transform: translateY(-5px);
}

/* === ANIMATIONS === */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    50% {
        box-shadow: 0 0 0 20px rgba(37, 211, 102, 0);
    }
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
    .hero-container,
    .method-explanation {
        grid-template-columns: 1fr;
    }

    .tech-item,
    .tech-item.reverse {
        grid-template-columns: 1fr;
    }

    .tech-item.reverse .tech-img {
        order: 0;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }

    .about {
        background-attachment: scroll;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--white);
        flex-direction: column;
        align-items: flex-start;
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
        transition: var(--transition-base);
        box-shadow: var(--shadow-lg);
    }

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

    .hamburger {
        display: flex;
    }

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

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

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

    .hero {
        padding: 100px 0 60px;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .symptoms-grid,
    .target-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .cta-final-buttons {
        flex-direction: column;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .whatsapp-float {
        bottom: 20px;
        right: 20px;
    }

    .scroll-top {
        display: none;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 1.75rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-badge-floating {
        position: static;
        margin-top: var(--spacing-md);
    }

    .about-badge {
        position: static;
        display: inline-block;
        margin-top: var(--spacing-md);
    }
}