/* ===================================
   CSS Variables & Reset
   =================================== */

:root {

    /* Brand Colors */
    --primary-dark: #031a44;
    --accent-gold: #f9ae01;
    --accent-cyan: #0bd6c3;
    
    /* Dark Mode Colors */
    --bg-dark: #0a0e1a;
    --surface-dark: #131b2e;
    --text-light: #ffffff;
    --text-secondary-light: #b8c5d6;
    
    /* Light Mode Colors */
    --bg-light: #ffffff;
    --surface-light: #f5f7fa;
    --text-dark: #031a44;
    --text-secondary-dark: #5a6c7d;
    
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 64px;
    --spacing-3xl: 96px;
    
    /* Typography */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* 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);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.25);
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

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

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

body {
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Dark Mode (Default) */
body.dark-mode {
    background-color: var(--bg-dark);
    color: var(--text-light);
}

/* Light Mode */
body.light-mode {
    background-color: var(--bg-light);
    color: var(--text-dark);
}

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

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

ul {
    list-style: none;
}

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


/* ===================================
   Utility Classes
   =================================== */

.container {
    max-width: 80%;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    background: none;
}

.accent-text {
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===================================
   Preloader
   =================================== */

#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-dark);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

#preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader {
    text-align: center;
}

.loader-circle {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(11, 214, 195, 0.2);
    border-top-color: var(--accent-cyan);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-sm);
}

.loader-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-gold);
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ===================================
   Navigation
   =================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: all var(--transition-normal);
    padding: var(--spacing-sm) 0;
}

.navbar.scrolled {
    background: rgba(3, 26, 68, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
}

.light-mode .navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
}

/* Mobile Navbar Fix */
@media (max-width: 1024px) {
  .navbar {
    background: rgba(3, 26, 68, 0.95); /* colore principale scuro */
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
  }

  .light-mode .navbar {
    background: rgba(255, 255, 255, 0.95);
  }

  /* Menu mobile aperto */
  .nav-menu.active {
    background: rgba(3, 26, 68, 0.98);
    backdrop-filter: blur(10px);
  }

  .light-mode .nav-menu.active {
    background: rgba(255, 255, 255, 0.98);
  }
}


.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    z-index: 1001;
}

.logo-img {
    width: auto;
    height: 100px;
    object-fit: contain;
}

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

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

.nav-link {
    font-weight: 500;
    position: relative;
    padding: var(--spacing-xs) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-gold), var(--accent-cyan));
    transition: width var(--transition-normal);
}

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

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

/* Theme Toggle */
.theme-toggle {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all var(--transition-normal);
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.theme-toggle i {
    position: absolute;
    font-size: 1.2rem;
    transition: all var(--transition-normal);
}

.dark-mode .sun-icon {
    opacity: 1;
    transform: rotate(0deg);
    color: var(--accent-gold);
}

.dark-mode .moon-icon {
    opacity: 0;
    transform: rotate(180deg);
}

.light-mode .sun-icon {
    opacity: 0;
    transform: rotate(-180deg);
}

.light-mode .moon-icon {
    opacity: 1;
    transform: rotate(0deg);
    color: var(--primary-dark);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    z-index: 1001;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-light);
    transition: all var(--transition-normal);
    border-radius: 2px;
}

.light-mode .hamburger span {
    background: var(--text-dark);
}

.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(7px, -7px);
}


/* ===== DROPDOWN (compatibile con .nav-menu) ===== */
.nav-menu .dropdown { position: relative; }

.nav-menu .dropdown > .dropbtn .caret { 
  margin-left: 6px; 
  font-size: .85em; 
  opacity: .8;
}

/* Menu nascosto di default */
.nav-menu .dropdown > .dropdown-content {
  display: none;
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 220px;
  background: var(--surface-dark);
  border: 1px solid rgba(11, 214, 195, 0.2);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-xs) 0;
  z-index: 1002;
}

/* Light mode */
.light-mode .nav-menu .dropdown > .dropdown-content {
  background: var(--bg-light);
  border-color: rgba(3, 26, 68, 0.1);
}

.nav-menu .dropdown > .dropdown-content li { list-style: none; }

.nav-menu .dropdown > .dropdown-content a {
  display: block;
  padding: 10px 16px;
  font-size: 0.95rem;
  color: var(--text-light);
  white-space: nowrap;
}
.light-mode .nav-menu .dropdown > .dropdown-content a { color: var(--text-dark); }
.nav-menu .dropdown > .dropdown-content a:hover {
  background: rgba(11, 214, 195, 0.12);
  color: var(--accent-cyan);
}

/* Mostra su hover (solo dispositivi con hover, es. desktop) */
@media (hover: hover) and (pointer: fine) {
  .nav-menu .dropdown:hover > .dropdown-content,
  .nav-menu .dropdown:focus-within > .dropdown-content {
    display: block;
  }
}

/* Stato "open" per toggle via JS (mobile o anche desktop se vuoi click-to-open) */
.nav-menu .dropdown.open > .dropdown-content {
  display: block;
}

/* Mobile: il submenu diventa a flusso e si apre con la classe .open */
@media (max-width: 1024px) {
  .nav-menu .dropdown { width: 100%; }
  .nav-menu .dropdown > .dropdown-content {
    position: static;
    display: none;     /* resta nascosto finché non è .open */
    box-shadow: none;
    border: none;
    padding: 0;
    margin-top: 6px;
    background: transparent;
  }
  .nav-menu .dropdown.open > .dropdown-content { display: block; }
  .nav-menu .dropdown > .dropdown-content a {
    padding: 10px 0;
    border-left: 2px solid transparent;
  }
  .nav-menu .dropdown > .dropdown-content a:hover {
    background: transparent;
    border-left-color: var(--accent-cyan);
  }
}




/* ===================================
   Hero Section
   =================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: var(--spacing-3xl) 0;
}

.particles-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        rgba(3, 26, 68, 0.9) 0%, 
        rgba(3, 26, 68, 0.7) 50%, 
        rgba(11, 214, 195, 0.3) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 800px;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.title-line {
    display: block;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary-light);
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xl);
    color: var(--text-secondary-light);
}

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

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    animation: bounce 2s infinite;
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--accent-cyan);
    border-radius: 13px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--accent-cyan);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 1.5s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

@keyframes scroll {
    0% { opacity: 1; top: 8px; }
    100% { opacity: 0; top: 20px; }
}

/* ===================================
   Buttons
   =================================== */

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 14px 32px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn span,
.btn i {
    position: relative;
    z-index: 1;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-gold), #e09800);
    color: var(--primary-dark);
    box-shadow: 0 4px 15px rgba(249, 174, 1, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(249, 174, 1, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--text-light);
    border: 2px solid var(--accent-cyan);
}

.btn-secondary:hover {
    background: var(--accent-cyan);
    color: var(--primary-dark);
    transform: translateY(-2px);
}

.light-mode .btn-secondary {
    color: var(--text-dark);
}

.btn-product {
    background: rgba(11, 214, 195, 0.1);
    color: var(--accent-cyan);
    border: 1px solid var(--accent-cyan);
    padding: 10px 24px;
    font-size: 0.9rem;
}

.btn-product:hover {
    background: var(--accent-cyan);
    color: var(--primary-dark);
}

/* ===================================
   Quote Section
   =================================== */

.quote-section {
    padding: var(--spacing-3xl) 0;
    position: relative;
    overflow: hidden;
}

.quote-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--accent-gold) 0%, #e09800 100%);
    opacity: 0.95;
}

.dark-mode .quote-bg {
    opacity: 1;
}

.light-mode .quote-bg {
    opacity: 0.9;
}

.quote-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.chain-icon {
    font-size: 4rem;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-md);
    animation: swing 3s ease-in-out infinite;
}

@keyframes swing {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(5deg); }
    75% { transform: rotate(-5deg); }
}

.quote-text {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    font-weight: 600;
    font-style: italic;
    color: var(--primary-dark);
    line-height: 1.4;
    margin-bottom: var(--spacing-md);
}

.quote-author {
    font-size: 1.2rem;
    color: var(--primary-dark);
    font-weight: 600;
}

/* ===================================
   Section Headers
   =================================== */

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-gold), var(--accent-cyan));
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary-light);
    max-width: 600px;
    margin: var(--spacing-md) auto 0;
}

.light-mode .section-subtitle {
    color: var(--text-secondary-dark);
}

/* ===================================
   Services Section
   =================================== */

.services {
    padding: var(--spacing-3xl) 0;
    background: var(--surface-dark);
}

.light-mode .services {
    background: var(--surface-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.service-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(11, 214, 195, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.light-mode .service-card {
    background: var(--bg-light);
    border-color: rgba(3, 26, 68, 0.1);
    box-shadow: var(--shadow-sm);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-gold), var(--accent-cyan));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

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

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(11, 214, 195, 0.2);
}

.light-mode .service-card:hover {
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 70px;
    height: 70px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-cyan));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    font-size: 2rem;
    color: var(--primary-dark);
}

.service-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.service-prefix {
    color: var(--accent-cyan);
    font-size: 0.9rem;
}

.service-description {
    color: var(--text-secondary-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.light-mode .service-description {
    color: var(--text-secondary-dark);
}

.bitcoin-services {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.badge {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(11, 214, 195, 0.1);
    border: 1px solid var(--accent-cyan);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--accent-cyan);
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--accent-gold);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.service-link:hover {
    gap: var(--spacing-sm);
}

.service-link i {
    transition: transform var(--transition-fast);
}

.service-link:hover i {
    transform: translateX(4px);
}

/* ===================================
   Products Section
   =================================== */

.products {
    padding: var(--spacing-3xl) 0;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.product-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(11, 214, 195, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-normal);
    position: relative;
}

.light-mode .product-card {
    background: var(--bg-light);
    border-color: rgba(3, 26, 68, 0.1);
    box-shadow: var(--shadow-sm);
}

.product-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 12px 40px rgba(249, 174, 1, 0.2);
}

.product-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: var(--accent-gold);
    color: var(--primary-dark);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.product-image {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--accent-cyan);
    transition: transform var(--transition-normal);
}

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

.product-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.product-description {
    font-size: 0.9rem;
    color: var(--text-secondary-light);
    margin-bottom: var(--spacing-md);
}

.light-mode .product-description {
    color: var(--text-secondary-dark);
}

.product-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-gold);
    margin-bottom: var(--spacing-md);
}

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

/* ===================================
   Stats Section
   =================================== */

.stats {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, 
        rgba(3, 26, 68, 0.95) 0%, 
        rgba(11, 214, 195, 0.2) 100%);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
}

.stat-icon {
    font-size: 3rem;
    color: var(--accent-cyan);
    margin-bottom: var(--spacing-sm);
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent-gold);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 1rem;
    color: var(--text-secondary-light);
    font-weight: 500;
}

/* ===================================
   Contact Section
   =================================== */

.contact {
    padding: var(--spacing-3xl) 0;
    background: var(--surface-dark);
}

.light-mode .contact {
    background: var(--surface-light);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
}

.contact-info h3 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    margin-bottom: var(--spacing-md);
}

.contact-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.light-mode .contact-item {
    background: var(--bg-light);
    box-shadow: var(--shadow-sm);
}

.contact-item:hover {
    transform: translateX(8px);
    background: rgba(11, 214, 195, 0.1);
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--accent-cyan);
    margin-top: 4px;
}

.contact-item h4 {
    font-weight: 600;
    margin-bottom: 4px;
}

.contact-item a {
    color: var(--accent-gold);
}

.contact-item a:hover {
    text-decoration: underline;
}

.social-links {
    margin-top: var(--spacing-xl);
}

.social-links h4 {
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

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

.social-icons a {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: rgba(11, 214, 195, 0.1);
    border: 1px solid var(--accent-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--accent-cyan);
    transition: all var(--transition-normal);
}

.social-icons a:hover {
    background: var(--accent-cyan);
    color: var(--primary-dark);
    transform: translateY(-4px);
}

/* Contact Form */
.contact-form-wrapper {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(11, 214, 195, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
}

.light-mode .contact-form-wrapper {
    background: var(--bg-light);
    border-color: rgba(3, 26, 68, 0.1);
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--accent-cyan);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid rgba(11, 214, 195, 0.3);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-light);
    font-family: inherit;
    font-size: 1rem;
    transition: all var(--transition-normal);
}

.light-mode .form-group input,
.light-mode .form-group select,
.light-mode .form-group textarea {
    background: var(--bg-light);
    color: var(--text-dark);
    border-color: rgba(3, 26, 68, 0.2);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(11, 214, 195, 0.1);
}

.form-group textarea {
    resize: vertical;
}

/* ===================================
   Footer
   =================================== */

.footer {
    background: var(--primary-dark);
    padding: var(--spacing-2xl) 0 var(--spacing-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-col h4 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    color: var(--accent-gold);
}

.footer-col p {
    color: var(--text-secondary-light);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.footer-col ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-col ul li a {
    color: var(--text-secondary-light);
    transition: color var(--transition-fast);
}

.footer-col ul li a:hover {
    color: var(--accent-cyan);
    padding-left: 4px;
}

.payment-methods h5 {
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-light);
}

.payment-icons {
    display: flex;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
}

.payment-icons i {
    color: var(--accent-cyan);
}

.footer-bottom {
    border-top: 1px solid rgba(11, 214, 195, 0.2);
    padding-top: var(--spacing-md);
    text-align: center;
    color: var(--text-secondary-light);
}

.footer-bottom p {
    margin-bottom: var(--spacing-xs);
}

.footer-bottom i {
    color: var(--accent-gold);
}

/* ===================================
   Back to Top Button
   =================================== */

.back-to-top {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-cyan));
    color: var(--primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 999;
    box-shadow: var(--shadow-lg);
}

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

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* ===================================
   Animations (AOS-like)
   =================================== */

[data-aos] {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[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-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);
}

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 1024px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--surface-dark);
        flex-direction: column;
        justify-content: center;
        align-items: flex-start;
        padding: var(--spacing-xl);
        gap: var(--spacing-md);
        transition: right var(--transition-normal);
        box-shadow: var(--shadow-xl);
    }
    
    .light-mode .nav-menu {
        background: var(--bg-light);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .hamburger {
        display: flex;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 32px;
        --spacing-2xl: 48px;
        --spacing-3xl: 64px;
    }
    
    .hero {
        min-height: 90vh;
        padding: var(--spacing-2xl) 0;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .services-grid,
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-cta {
        gap: var(--spacing-sm);
    }
}


/* Fix quote text visibility in Dark Mode */
body.dark-mode .quote-text,
body.dark-mode .quote-author,
body.dark-mode .chain-icon {
    color: var(--text-light) !important;
}

body.dark-mode .quote-text strong {
    color: var(--accent-gold);
}


/* Hero compatta solo per la pagina Bitcoin */
.hero-bitcoin {
  min-height: 35vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 100px 0 40px;
  text-align: center;
  background: none; /* mantiene l'overlay principale */
}

.hero-bitcoin .hero-title {
  font-size: 2.2rem;
  margin-bottom: 0.5rem;
}

.hero-bitcoin .hero-description {
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto;
  opacity: 0.9;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-bitcoin {
    min-height: 25vh;
    padding: 80px 0 30px;
  }
  .hero-bitcoin .hero-title {
    font-size: 1.8rem;
  }
  .hero-bitcoin .hero-description {
    font-size: 0.9rem;
  }
}
/* ===================================
   Why DataSapiens Section
   =================================== */

.why-datasapiens {
  padding: var(--spacing-3xl) 0;
  background: var(--surface-dark);
  position: relative;
  overflow: hidden;
}

.light-mode .why-datasapiens {
  background: var(--surface-light);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-2xl);
}

.why-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(11, 214, 195, 0.2);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  transition: all var(--transition-normal);
}

.light-mode .why-card {
  background: var(--bg-light);
  border-color: rgba(3, 26, 68, 0.1);
  box-shadow: var(--shadow-sm);
}

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

.why-icon {
  font-size: 2.5rem;
  color: var(--accent-gold);
  margin-bottom: var(--spacing-md);
}

.why-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.why-description {
  font-size: 0.95rem;
  color: var(--text-secondary-light);
  line-height: 1.6;
}

.light-mode .why-description {
  color: var(--text-secondary-dark);
}
/* ===================================
   Tech Specs Section
   =================================== */

.tech-specs {
  padding: var(--spacing-3xl) 0;
  background: var(--dark);
  position: relative;
  z-index: 1;
}

.light-mode .tech-specs {
  background: var(--light);
}

.specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-2xl);
}

.spec-card {
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s ease;
}

.light-mode .spec-card {
  background: var(--white);
  border-color: rgba(0, 0, 0, 0.05);
  box-shadow: var(--shadow);
}

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

.spec-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: var(--accent-gold);
}

.spec-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.spec-list li {
  margin-bottom: 0.7rem;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-light);
}

.light-mode .spec-list li {
  color: var(--text-dark);
}

/* ===================================
   Intro / Feature Highlights (Smartphone)
   =================================== */

.intro {
  padding: var(--spacing-3xl) 0;
  background: var(--surface-dark);
  position: relative;
}

.light-mode .intro {
  background: var(--surface-light);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-2xl);
}

.feature-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(11, 214, 195, 0.2);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: left;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.light-mode .feature-card {
  background: var(--bg-light);
  border-color: rgba(3, 26, 68, 0.1);
  box-shadow: var(--shadow-sm);
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-cyan);
}


/* Fix centratura icone feature-card (corretto e stabile) */
.feature-icon {
  width: 70px;
    height: 70px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-cyan));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    font-size: 2rem;
    color: var(--primary-dark);
}


.feature-card:hover .feature-icon {
  transform: scale(1.05) translateY(-3px);
  box-shadow: 0 8px 25px rgba(11, 214, 195, 0.35);
}


.feature-card:hover .feature-icon {
  transform: scale(1.05) translateY(-3px);
  box-shadow: 0 8px 25px rgba(11, 214, 195, 0.35);
}


.feature-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.feature-text {
  color: var(--text-secondary-light);
  line-height: 1.7;
}

.light-mode .feature-text {
  color: var(--text-secondary-dark);
}

/* spacing fine-tuning on mobile */
@media (max-width: 768px) {
  .intro { 
    padding: var(--spacing-2xl) 0; 
  }
  .features-grid { 
    gap: var(--spacing-md); 
    margin-top: var(--spacing-xl); 
  }
}
.hero-smartphone {
  min-height: 45vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 110px 0 40px;
  text-align: center;
}
@media (max-width: 768px) {
  .hero-smartphone { min-height: 30vh; padding: 90px 0 30px; }
}
.grapheneos-features {
  padding: var(--spacing-3xl) 0;
  background: var(--surface-dark);
}

.light-mode .grapheneos-features {
  background: var(--surface-light);
}

.grapheneos-features .section-title {
  text-align: center;
  font-family: var(--font-heading);
  font-size: 2rem;
  margin-bottom: var(--spacing-sm);
}

.grapheneos-features .section-subtitle {
  text-align: center;
  color: var(--text-secondary-light);
  max-width: 700px;
  margin: 0 auto var(--spacing-2xl);
}

.grapheneos-features .feature-icon img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

.light-mode .grapheneos-features .feature-icon img {
  filter: none;
}

.logo-img:hover {
  transform: scale(1.05);
  transition: transform 0.3s ease;
}

/* Fix centratura titolo GrapheneOS Features */
.grapheneos-features .section-header {
  text-align: center;
}

.grapheneos-features .section-title {
  display: block; /* non inline-block */
  text-align: center;
  margin: 0 auto var(--spacing-sm);
}

.grapheneos-features .section-title::after {
  left: 50%;
  transform: translateX(-50%);
}

.grapheneos-features .section-subtitle {
  text-align: center;
  margin: 0 auto var(--spacing-2xl);
}


/* ===================================
   BITCOIN BUSINESS PAGE FIXES
   =================================== */

/* Hero Section */
.small-hero {
  position: relative;
  min-height: 70vh;
  background: linear-gradient(135deg, rgba(3,26,68,0.95), rgba(11,214,195,0.2)),
              url("assets/bitcoin-business-bg.jpg") center/cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 var(--spacing-md);
  color: var(--text-light);
  overflow: hidden;
}

.small-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(3,26,68,0.4);
  z-index: 1;
}

.small-hero .container {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.small-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 6vw, 3.5rem);
  color: var(--accent-gold);
  margin-bottom: var(--spacing-sm);
}

.small-hero p {
  color: var(--text-secondary-light);
  font-size: 1.15rem;
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

/* Intro Section */
.intro-section {
  background: var(--surface-dark);
  color: var(--text-light);
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-md);
}

.light-mode .intro-section {
  background: var(--surface-light);
  color: var(--text-dark);
}

.intro-section h2 {
  color: var(--accent-gold);
  font-family: var(--font-heading);
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
}

.intro-section p {
  max-width: 850px;
  margin: 0 auto;
  color: var(--text-secondary-light);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* Services Grid */
.services-grid {
  background: var(--bg-dark);
  padding: var(--spacing-3xl) var(--spacing-md);
  text-align: center;
}

.light-mode .services-grid {
  background: var(--surface-light);
}

.services-grid h2 {
  color: var(--accent-gold);
  font-family: var(--font-heading);
  font-size: 2.2rem;
  margin-bottom: var(--spacing-2xl);
}

.services-grid .grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-lg);
  max-width: 1200px;
  margin: 0 auto;
}

.services-grid .card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(11,214,195,0.25);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.light-mode .services-grid .card {
  background: var(--bg-light);
  border-color: rgba(3,26,68,0.1);
}

.services-grid .card:hover {
  transform: translateY(-6px);
  background: rgba(11,214,195,0.1);
  box-shadow: var(--shadow-lg);
}

.services-grid .card h3 {
  color: var(--accent-cyan);
  font-size: 1.3rem;
  margin-bottom: var(--spacing-xs);
}

.services-grid .card p {
  color: var(--text-secondary-light);
  font-size: 0.95rem;
  line-height: 1.6;
}

.light-mode .services-grid .card p {
  color: var(--text-secondary-dark);
}

/* Benefits Section */
.benefits-section {
  background: var(--surface-dark);
  color: var(--text-light);
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-md);
}

.light-mode .benefits-section {
  background: var(--surface-light);
  color: var(--text-dark);
}

.benefits-section h2 {
  color: var(--accent-gold);
  font-family: var(--font-heading);
  font-size: 2rem;
  margin-bottom: var(--spacing-2xl);
}

.benefits-section .grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  max-width: 1100px;
  margin: 0 auto;
}

.benefit {
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(11,214,195,0.2);
  padding: var(--spacing-xl);
  transition: all var(--transition-normal);
}

.light-mode .benefit {
  background: var(--bg-light);
  border-color: rgba(3,26,68,0.1);
}

.benefit:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.benefit h3 {
  color: var(--accent-cyan);
  font-size: 1.2rem;
  margin-bottom: var(--spacing-xs);
}

.benefit p {
  color: var(--text-secondary-light);
  font-size: 0.95rem;
  line-height: 1.6;
}

.light-mode .benefit p {
  color: var(--text-secondary-dark);
}

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-cyan));
  color: var(--primary-dark);
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-md);
}

.cta-section h2 {
  font-family: var(--font-heading);
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
}

.cta-section p {
  max-width: 700px;
  margin: 0 auto var(--spacing-lg);
  font-size: 1.05rem;
}

.cta-section .btn-primary {
  background: var(--primary-dark);
  color: var(--text-light);
  padding: 14px 32px;
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: all var(--transition-normal);
}

.cta-section .btn-primary:hover {
  background: var(--accent-cyan);
  color: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

/* Footer */
.footer {
  background: var(--primary-dark);
  color: var(--text-secondary-light);
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
  font-size: 0.9rem;
}

.light-mode .footer {
  background: var(--surface-light);
  color: var(--text-dark);
}

/* ===== AOS-like Animations ===== */
[data-aos] {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
[data-aos].aos-animate {
  opacity: 1;
  transform: translateY(0);
}
[data-aos="fade-right"] { transform: translateX(-40px); }
[data-aos="fade-left"]  { transform: translateX(40px); }

/* ===== Hero Video Tweaks ===== */
.hero-bitcoin-pro video {
  object-fit: cover;
}

/* ===== Image Adjustments ===== */
.story-image img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transition: transform 0.6s ease;
}
.story-image img:hover {
  transform: scale(1.03);
}



/* ==============================
   CTA SECTION (Smartphone Page)
   ============================== */
.cta {
  position: relative;
  padding: var(--spacing-3xl) var(--spacing-md);
  background: linear-gradient(
      135deg,
      rgba(3, 26, 68, 0.95) 0%,
      rgba(11, 214, 195, 0.25) 100%
  );
  overflow: hidden;
  text-align: center;
}

.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(11, 214, 195, 0.25), transparent 70%);
  opacity: 0.6;
  animation: pulse-glow 6s infinite alternate ease-in-out;
}

@keyframes pulse-glow {
  0% { opacity: 0.4; transform: scale(1); }
  100% { opacity: 0.8; transform: scale(1.1); }
}

.cta-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin: 0 auto;
  color: var(--text-light);
  animation: fadeInUp 1.2s ease both;
}

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

.cta-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  color: var(--accent-gold);
  margin-bottom: var(--spacing-sm);
  text-shadow: 0 0 10px rgba(11, 214, 195, 0.4);
}

.cta-text {
  font-size: 1.1rem;
  color: var(--text-secondary-light);
  max-width: 700px;
  margin: 0 auto var(--spacing-lg);
  line-height: 1.7;
}

.cta .btn {
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-cyan));
  color: var(--primary-dark);
  padding: 14px 36px;
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: all var(--transition-normal);
  box-shadow: 0 4px 20px rgba(11, 214, 195, 0.25);
}

.cta .btn:hover {
  transform: translateY(-4px) scale(1.03);
  box-shadow: 0 8px 30px rgba(11, 214, 195, 0.45);
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-gold));
}
/* ===================================
   COOKIE BANNER
   =================================== */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: none; /* sarà mostrato via JS */
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  background: rgba(3, 26, 68, 0.98);
  color: #fff;
  padding: 1rem 2rem;
  z-index: 9999;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
  font-size: 0.95rem;
}

.light-mode .cookie-banner {
  background: #fff;
  color: #031a44;
  border-top: 1px solid rgba(3, 26, 68, 0.2);
}

.cookie-banner p {
  margin: 0;
  flex: 1 1 auto;
  line-height: 1.4;
}

.cookie-banner a {
  color: var(--accent-cyan);
  font-weight: 600;
}

.cookie-buttons {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}

.cookie-buttons button {
  background: var(--accent-cyan);
  border: none;
  padding: 8px 16px;
  color: #031a44;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s;
}

.cookie-buttons button:hover {
  background: var(--accent-gold);
}