/* ============================================
   MODERN PREMIUM DESIGN - RETATRUTIDE
   ============================================ */

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

:root {
    /* Premium Color Palette */
    --primary: #0a0f1c;
    --secondary: #1a1f2e;
    --accent: #00d4aa;
    --accent-dark: #00a886;
    --accent-light: #00ffcc;
    --gold: #d4af37;
    
    /* Neutrals */
    --white: #ffffff;
    --light: #f8f9fa;
    --gray-100: #e9ecef;
    --gray-200: #dee2e6;
    --gray-300: #ced4da;
    --gray-400: #adb5bd;
    --gray-500: #6c757d;
    --gray-600: #495057;
    --gray-700: #343a40;
    --gray-800: #212529;
    
    /* Typography */
    --font-display: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.2);
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

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

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

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid var(--gray-100);
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-md) var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    gap: var(--space-xl);
    align-items: center;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--gray-600);
    transition: var(--transition);
    position: relative;
}

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

.nav-cta {
    background: var(--accent);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.nav-cta:hover {
    background: var(--accent-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    padding: 8rem 0 4rem;
    background: linear-gradient(135deg, #0a0f1c 0%, #1a1f2e 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 212, 170, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 212, 170, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    color: var(--white);
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(0, 212, 170, 0.1);
    border: 1px solid rgba(0, 212, 170, 0.3);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--accent-light);
    margin-bottom: var(--space-lg);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-300);
    margin-bottom: var(--space-xl);
    line-height: 1.6;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.stat {
    text-align: center;
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-light);
    line-height: 1;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn-hero {
    display: inline-block;
    padding: 1.25rem 3rem;
    background: var(--accent);
    color: var(--white);
    font-size: 1.125rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition);
    box-shadow: 0 8px 24px rgba(0, 212, 170, 0.3);
}

.btn-hero:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(0, 212, 170, 0.4);
}

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

.image-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 212, 170, 0.3) 0%, transparent 70%);
    filter: blur(60px);
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.8; }
    50% { transform: translate(-50%, -50%) scale(1.1); opacity: 1; }
}

.hero-image img {
    position: relative;
    z-index: 1;
    max-width: 500px;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

/* ============================================
   PRODUCT SECTION
   ============================================ */
.product-section {
    padding: var(--space-3xl) 0;
    background: var(--light);
}

.product-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

.product-gallery {
    position: sticky;
    top: 120px;
}

.main-product-image {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-lg);
    margin-bottom: var(--space-md);
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.main-product-image img {
    max-height: 500px;
    object-fit: contain;
    transition: var(--transition);
}

.product-thumbnails {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-sm);
}

.thumb {
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: var(--radius-md);
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    background: var(--white);
    padding: var(--space-sm);
}

.thumb:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.thumb.active {
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
}

.product-info {
    padding: var(--space-lg) 0;
}

.product-header {
    margin-bottom: var(--space-xl);
}

.product-title {
    font-family: var(--font-display);
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

.product-description {
    font-size: 1.125rem;
    color: var(--gray-600);
    line-height: 1.8;
}

.product-features {
    background: var(--white);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-xl);
    box-shadow: var(--shadow-sm);
}

.feature-row {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--gray-100);
    font-size: 1rem;
    color: var(--gray-700);
}

.feature-row:last-child {
    border-bottom: none;
}

.feature-row svg {
    flex-shrink: 0;
    color: var(--accent);
}

.product-specs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.spec-item {
    background: var(--white);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.spec-label {
    font-size: 0.875rem;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.spec-value {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary);
}

/* ============================================
   BENEFITS SECTION
   ============================================ */
.benefits-section {
    padding: var(--space-3xl) 0;
    background: var(--white);
}

.section-title-center {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-title-center h2 {
    font-family: var(--font-display);
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

.section-title-center p {
    font-size: 1.25rem;
    color: var(--gray-500);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-xl);
}

.benefit-card {
    background: var(--light);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    border: 1px solid transparent;
}

.benefit-card:hover {
    background: var(--white);
    border-color: var(--accent);
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.benefit-icon {
    width: 64px;
    height: 64px;
    background: var(--accent);
    color: var(--white);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
}

.benefit-card h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: var(--space-sm);
}

.benefit-card p {
    color: var(--gray-600);
    line-height: 1.7;
}

/* ============================================
   ORDER SECTION
   ============================================ */
.order-section {
    padding: var(--space-3xl) 0;
    background: linear-gradient(135deg, #0a0f1c 0%, #1a1f2e 100%);
    color: var(--white);
}

.order-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

.order-details h2 {
    font-family: var(--font-display);
    font-size: 3rem;
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

.order-intro {
    font-size: 1.125rem;
    color: var(--gray-300);
    margin-bottom: var(--space-xl);
    line-height: 1.7;
}

.order-includes {
    background: rgba(255, 255, 255, 0.05);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: var(--space-xl);
}

.order-includes h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-md);
    color: var(--accent-light);
}

.includes-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.includes-list li {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    color: var(--gray-300);
}

.includes-list svg {
    flex-shrink: 0;
    color: var(--accent);
}

.trust-indicators {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.trust-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 0.875rem;
    color: var(--gray-300);
}

.trust-item svg {
    color: var(--accent);
}

.order-card {
    background: var(--white);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    position: sticky;
    top: 120px;
}

.price-card {
    text-align: center;
    padding: var(--space-xl);
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: var(--white);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-xl);
}

.price-header {
    margin-bottom: var(--space-md);
}

.price-label {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.9;
}

.price-amount {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    margin-bottom: var(--space-sm);
}

.currency {
    font-size: 2rem;
    font-weight: 600;
    margin-top: 0.5rem;
}

.amount {
    font-family: var(--font-display);
    font-size: 5rem;
    font-weight: 700;
    line-height: 1;
}

.decimal {
    font-size: 2rem;
    font-weight: 600;
    margin-top: 0.5rem;
}

.price-note {
    font-size: 0.875rem;
    opacity: 0.9;
}

.btn-checkout {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    width: 100%;
    padding: 1.25rem;
    background: var(--primary);
    color: var(--white);
    font-size: 1.125rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition);
    margin-bottom: var(--space-lg);
}

.btn-checkout:hover {
    background: var(--secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.payment-methods {
    padding: var(--space-lg) 0;
    border-top: 1px solid var(--gray-100);
    border-bottom: 1px solid var(--gray-100);
    margin-bottom: var(--space-lg);
}

.payment-methods > span {
    display: block;
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-bottom: var(--space-sm);
}

.payment-icons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.payment-badge {
    padding: 0.5rem 1rem;
    background: var(--light);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
}

.order-guarantee {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    color: var(--gray-600);
    font-size: 0.875rem;
}

.order-guarantee svg {
    color: var(--accent);
}

/* ============================================
   INFO SECTION
   ============================================ */
.info-section {
    padding: var(--space-3xl) 0;
    background: var(--light);
}

.info-card {
    background: #fff3cd;
    border-left: 4px solid #ffc107;
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    display: flex;
    gap: var(--space-lg);
}

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

.info-icon svg {
    color: #ffc107;
}

.info-content h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: var(--space-md);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-md);
}

.info-item {
    font-size: 0.95rem;
    color: var(--gray-700);
    padding: var(--space-sm);
    background: rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-sm);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--primary);
    color: var(--gray-300);
    padding: var(--space-3xl) 0 var(--space-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-xl);
}

.footer-brand {
    max-width: 400px;
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--space-sm);
}

.footer-brand p {
    color: var(--gray-400);
}

.footer-links,
.footer-contact {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-links a,
.footer-contact a {
    color: var(--gray-300);
    transition: var(--transition);
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--accent);
}

.footer-contact p {
    color: var(--gray-400);
    margin-bottom: var(--space-sm);
}

.footer-bottom {
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-legal {
    display: flex;
    gap: var(--space-lg);
}

.footer-legal a {
    color: var(--gray-400);
    font-size: 0.875rem;
    transition: var(--transition);
}

.footer-legal a:hover {
    color: var(--accent);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 968px) {
    .hero-container,
    .product-grid,
    .order-container {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .hero {
        padding: 6rem 0 3rem;
    }
    
    .hero-image {
        order: -1;
    }
    
    .hero-image img {
        max-width: 100%;
    }
    
    .hero-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-sm);
    }
    
    .product-gallery {
        position: static;
    }
    
    .order-card {
        position: static;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .nav-links {
        gap: var(--space-md);
    }
}

@media (max-width: 640px) {
    :root {
        --space-xl: 2rem;
        --space-2xl: 3rem;
        --space-3xl: 4rem;
    }
    
    .nav-container {
        padding: var(--space-sm) var(--space-md);
    }
    
    .nav-logo {
        font-size: 1.5rem;
    }
    
    .nav-links {
        gap: var(--space-sm);
    }
    
    .nav-link {
        font-size: 0.875rem;
    }
    
    .nav-cta {
        padding: 0.5rem 1rem;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .product-thumbnails {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .product-specs {
        grid-template-columns: 1fr;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .trust-indicators {
        grid-template-columns: 1fr;
    }
    
    .payment-icons {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .info-card {
        flex-direction: column;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
    
    .footer-legal {
        flex-direction: column;
        gap: var(--space-sm);
    }
}

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

.benefit-card,
.product-info,
.order-details {
    animation: fadeInUp 0.6s ease-out;
}

/* ============================================
   SCROLL REVEAL
   ============================================ */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}