/* ===================================
   CSS RESET & BASE STYLES
   =================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* CSS Variables - Design System */
:root {
    /* Colors */
    --color-white: #ffffff;
    --color-light-gray: #f8f8f8;
    --color-almost-black: #191919;
    --color-accent: #ff3131;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;
    
    /* Container */
    --container-max-width: 1200px;
    --container-padding: 2rem;
    
    /* Transitions */
    --transition-speed: 0.3s;
    --transition-ease: ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-almost-black);
    background-color: var(--color-white);
    overflow-x: hidden;
}

/* ===================================
   TYPOGRAPHY
   =================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.75rem;
}

p {
    margin-bottom: 1rem;
}

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

/* ===================================
   UTILITY CLASSES
   =================================== */

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section-title {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    text-align: center;
    margin-bottom: calc(var(--spacing-lg) + 1rem);
    color: var(--color-almost-black);
}

.section-title::after {
    content: '';
    display: block;
    width: 48px;
    height: 3px;
    background-color: var(--color-accent);
    margin: 0.75rem auto 0;
    border-radius: 2px;
}

/* ===================================
   BUTTONS
   =================================== */

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    text-align: center;
    cursor: pointer;
    border: 2px solid var(--color-almost-black);
    background-color: transparent;
    color: var(--color-almost-black);
    transition: all var(--transition-speed) var(--transition-ease);
    font-family: var(--font-primary);
}

.btn:hover {
    background-color: var(--color-almost-black);
    color: var(--color-white);
}

.btn-primary {
    background-color: var(--color-almost-black);
    color: var(--color-white);
}

.btn-primary:hover {
    background-color: var(--color-white);
    color: var(--color-almost-black);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-almost-black);
}

.btn-large {
    padding: 1.25rem 3rem;
    font-size: 1.125rem;
}

.btn-pricing {
    width: 100%;
    margin-top: auto;
}

/* ===================================
   NAVIGATION
   =================================== */

#navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: background-color var(--transition-speed) var(--transition-ease);
}

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

.nav-logo {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-almost-black);
}

.logo-accent {
    color: var(--color-accent);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-almost-black);
    letter-spacing: 0.5px;
    transition: color var(--transition-speed) var(--transition-ease);
}

.nav-link:hover {
    color: var(--color-accent);
}

.nav-link.active {
    color: var(--color-accent);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    position: relative;
    z-index: 1001;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--color-almost-black);
    margin: 3px 0;
    transition: all var(--transition-speed) var(--transition-ease);
}

/* ===================================
   HERO SECTION
   =================================== */

.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-xxl) var(--container-padding);
    background-color: var(--color-white);
    margin-top: 60px;
}

.hero-content {
    max-width: 900px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-almost-black);
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    font-weight: var(--font-weight-regular);
    color: var(--color-almost-black);
    margin-bottom: var(--spacing-md);
    opacity: 0.9;
}

.hero-tagline {
    font-size: 1.125rem;
    font-weight: var(--font-weight-medium);
    font-style: italic;
    color: var(--color-accent);
    margin-bottom: var(--spacing-lg);
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===================================
   FIT SECTION
   =================================== */

.fit-section {
    padding: var(--spacing-xxl) var(--container-padding);
    background-color: var(--color-white);
}

.fit-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.fit-card {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border: 1px solid #e5e7eb;
    border-radius: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.fit-card:hover {
    /* Nessun effetto hover */
    transform: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    border-color: #e5e7eb;
}

.fit-title {
    font-size: 1.75rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-lg);
    color: var(--color-almost-black);
    text-align: center;
}

.fit-list {
    list-style: none;
    padding: 0;
}

.fit-list li {
    padding: 0.875rem 0;
    font-size: 1rem;
    line-height: 1.6;
    display: flex;
    align-items: center;
    gap: 0.875rem;
    color: #374151;
}

.check-icon,
.x-icon {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    flex-shrink: 0;
}

.check-icon {
    color: #22c55e;
}

.x-icon {
    color: #ef4444;
}

/* ===================================
   HOW IT WORKS SECTION
   =================================== */

.how-it-works-section {
    padding: var(--spacing-xxl) var(--container-padding);
    background-color: #f9fafb;
}

.how-it-works-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.work-step {
    text-align: center;
}

.work-icon {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
}

.work-icon img {
    max-width: 80px;
    max-height: 80px;
    object-fit: contain;
    background: transparent;
    mix-blend-mode: multiply;
}

.work-title {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-almost-black);
}

.work-description {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-almost-black);
    opacity: 0.85;
}

/* ===================================
   PRICING SECTION
   =================================== */

.pricing-section {
    padding: var(--spacing-xxl) var(--container-padding);
    background-color: var(--color-white);
}

.pricing-intro {
    font-size: 1.25rem;
    text-align: center;
    max-width: 900px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.7;
    color: var(--color-almost-black);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-bottom: var(--spacing-xl);
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
    align-items: stretch;
}

.pricing-card {
    background-color: var(--color-white);
    padding: 0;
    border: 1px solid #e5e7eb;
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: all var(--transition-speed) var(--transition-ease);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    border-color: #d1d5db;
}

.pricing-card-featured {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    border-top: 3px solid var(--color-accent);
}

.pricing-card-featured:hover {
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
}

.pricing-header {
    padding: 1.5rem var(--spacing-md);
    text-align: center;
    background-color: var(--color-white);
    border-radius: 16px 16px 0 0;
}

.pricing-divider {
    height: 1px;
    background-color: #e5e7eb;
    margin: 0;
}

.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-almost-black);
    color: var(--color-white);
    padding: 0.5rem 1.5rem;
    font-size: 0.875rem;
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.5px;
}

.pricing-name {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-almost-black);
    text-transform: capitalize;
    letter-spacing: 0px;
    min-height: 46px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.badge-popular {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #059669;
    display: block;
    margin-top: 0.5rem;
}

.pricing-amount {
    margin-bottom: 0;
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.25rem;
}

.price {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-almost-black);
    line-height: 1;
}

.period {
    font-size: 1.125rem;
    color: #666;
}

.pricing-subtitle {
    font-size: 1rem;
    color: #666;
    margin-bottom: var(--spacing-md);
}

.pricing-features {
    list-style: none;
    margin: 0;
    flex-grow: 1;
    padding: 1.25rem var(--spacing-md);
}

.pricing-features li {
    padding: 0.875rem 0;
    font-size: 1rem;
    line-height: 1.6;
    color: #4b5563;
    position: relative;
    padding-left: 0;
    text-align: center;
}

.pricing-features li:before {
    display: none;
}

.pricing-features li:last-child {
    padding-bottom: 0;
}

.pricing-included {
    background-color: #f9fafb;
    padding: var(--spacing-xl);
    border: 1px solid #e5e7eb;
    border-radius: 16px;
    margin-bottom: var(--spacing-lg);
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.pricing-included h4 {
    font-size: 1.125rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pricing-included ul {
    list-style: none;
    padding-left: 0;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem 2rem;
}

.pricing-included li {
    padding: 0.5rem 0;
    font-size: 1rem;
    position: relative;
    padding-left: 1.5rem;
}

.pricing-included li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-almost-black);
    font-weight: var(--font-weight-bold);
}

.pricing-addon {
    background-color: #f9fafb;
    color: var(--color-almost-black);
    padding: var(--spacing-xl);
    border: 1px solid #e5e7eb;
    border-radius: 16px;
    margin-bottom: var(--spacing-lg);
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.pricing-addon h4 {
    font-size: 1.25rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    color: var(--color-almost-black);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pricing-addon p {
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-almost-black);
    font-weight: 600;
}

.pricing-addon ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: var(--spacing-md);
}

.pricing-addon li {
    padding: 0.5rem 0;
    font-size: 0.95rem;
    position: relative;
    padding-left: 1.5rem;
    color: #4b5563;
}

.pricing-addon li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #22c55e;
    font-weight: var(--font-weight-bold);
}

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

/* ===================================
   TESTIMONIALS SECTION
   =================================== */

.testimonials-section {
    padding: var(--spacing-xxl) var(--container-padding);
    background-color: #f9fafb;
}

.brand-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
}

.logo-placeholder {
    width: 150px;
    height: 80px;
    background-color: var(--color-light-gray);
    border: 2px solid var(--color-almost-black);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    color: #666;
    text-align: center;
    padding: 1rem;
}

.testimonials-carousel {
    max-width: 100%;
    margin: 0 auto;
    position: relative;
    padding: 0 60px;
}

.testimonial-card {
    background-color: var(--color-light-gray);
    padding: var(--spacing-md);
    border: 2px solid var(--color-almost-black);
    text-align: center;
    min-height: 300px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    border-radius: 8px;
}

.testimonial-stars {
    font-size: 1.5rem;
    color: #fbbf24;
    margin-bottom: var(--spacing-md);
}

.testimonial-text {
    font-size: 1.125rem;
    line-height: 1.8;
    font-style: italic;
    margin-bottom: var(--spacing-md);
    color: var(--color-almost-black);
}

.testimonial-author {
    margin-top: var(--spacing-md);
}

.author-name {
    font-size: 1.125rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: 0.25rem;
}

.author-title {
    font-size: 1rem;
    color: #666;
    margin: 0;
    font-style: italic;
}

/* Swiper Customization */
.swiper-button-next,
.swiper-button-prev {
    color: var(--color-almost-black);
    background-color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    top: 50%;
    transform: translateY(-50%);
}

.swiper-button-next:after,
.swiper-button-prev:after {
    font-size: 20px;
    font-weight: bold;
}

.swiper-button-next:hover,
.swiper-button-prev:hover {
    background-color: var(--color-almost-black);
    color: white;
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.swiper-pagination {
    display: none;
}

.swiper-pagination-bullet {
    background-color: var(--color-almost-black);
    opacity: 0.3;
}

.swiper-pagination-bullet-active {
    opacity: 1;
}

/* ===================================
   ABOUT SECTION
   =================================== */

.about-section {
    padding: var(--spacing-xxl) var(--container-padding);
    background-color: var(--color-white);
}

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

.about-text h2 {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.about-text p {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    color: var(--color-almost-black);
}

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

.photo-placeholder {
    width: 100%;
    aspect-ratio: 3/4;
    background-color: var(--color-white);
    border: 2px solid var(--color-almost-black);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    color: #666;
}

.about-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border: 2px solid var(--color-almost-black);
    display: block;
}

/* ===================================
   FOOTER
   =================================== */

.footer {
    background-color: var(--color-almost-black);
    color: var(--color-white);
    padding: var(--spacing-lg) var(--container-padding);
    text-align: center;
}

.footer p {
    margin-bottom: 0.5rem;
}

.footer a {
    color: var(--color-white);
    text-decoration: underline;
}

.footer a:hover {
    opacity: 0.8;
}