:root {
    --color-primary: #0F172A;
    --color-secondary: #E2E8F0;
    --color-accent: #38BDF8;
    --color-bg: #F8FAFC;
    --font-main: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --radius: 12px;
    --shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
    --shadow-hover: 0 8px 32px rgba(15, 23, 42, 0.1);
    --spacing: 1.5rem;
    --transition: 0.3s ease;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), transparent);
    z-index: 201;
    transform-origin: left;
    opacity: 0.8;
    transition: width 0.1s ease-out;
}

body {
    margin: 0;
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-primary);
    background: var(--color-bg);
    min-height: 100vh;
    display: flex;
    overflow-x: hidden;
    flex-direction: column;
}

main {
    flex: 1;
}

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

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing) calc(var(--spacing) * 2);
    background: rgba(248, 250, 252, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-secondary);
}

.brand {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.nav-desktop {
    display: flex;
    gap: calc(var(--spacing) * 1.5);
}

.nav-desktop a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: color var(--transition), font-weight var(--transition);
}

.nav-desktop a:hover {
    color: var(--color-accent);
    font-weight: 600;
}

.nav-desktop a,
.burger-nav a {
    transition: font-weight var(--transition);
}

.burger-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.burger-btn span {
    width: 24px;
    height: 2px;
    background: var(--color-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.burger-btn[aria-expanded="true"] span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.burger-btn[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.burger-btn[aria-expanded="true"] span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

.burger-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.95);
    z-index: 99;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
}

.burger-overlay.is-open {
    opacity: 1;
    visibility: visible;
}

.burger-nav {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.burger-nav a {
    color: var(--color-bg);
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 500;
    transition: color var(--transition);
}

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

@media (max-width: 1023px) {
    .nav-desktop {
        display: none;
    }

    .burger-btn {
        display: flex;
    }
}

.section-hero {
    position: relative;
    padding: calc(var(--spacing) * 4) 0;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.08) 0%, rgba(15, 23, 42, 0.02) 100%);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--spacing) * 3);
    align-items: center;
}

.hero-left h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    margin: 0 0 var(--spacing);
}

.hero-tagline {
    font-size: 1.25rem;
    color: var(--color-primary);
    opacity: 0.9;
    margin: 0 0 var(--spacing);
}

.hero-rating {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: var(--spacing);
}

.hero-rating .stars {
    color: var(--color-accent);
}

.hero-desc {
    margin: 0 0 var(--spacing);
    max-width: 480px;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(56, 189, 248, 0.15);
    color: var(--color-accent);
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing);
}

.hero-price {
    display: flex;
    align-items: baseline;
    gap: var(--spacing);
}

.price-old {
    text-decoration: line-through;
    color: var(--color-secondary);
    font-size: 1rem;
}

.price-current {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-accent);
}

.hero-order {
    position: relative;
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius);
    padding: calc(var(--spacing) * 2);
    box-shadow: 0 8px 32px rgba(15, 23, 42, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(226, 232, 240, 0.8);
    overflow: hidden;
}

.hero-order::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('../img/product.webp') center/cover no-repeat;
    opacity: 0.08;
    z-index: 0;
}

.hero-order figure,
.hero-order form {
    position: relative;
    z-index: 1;
}

.hero-order figure {
    margin: 0 0 var(--spacing);
    text-align: center;
}

.hero-order img {
    max-width: 200px;
    height: auto;
    border-radius: var(--radius);
}

.order-form label {
    display: block;
    margin-bottom: 4px;
    font-size: 0.875rem;
    font-weight: 500;
}

.order-form input,
.order-form textarea {
    width: 100%;
    padding: 10px 14px;
    margin-bottom: var(--spacing);
    border: 1px solid var(--color-secondary);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.order-form input:focus,
.order-form textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.2);
}

.gdpr-label {
    display: flex !important;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: var(--spacing);
}

.gdpr-label input {
    width: auto;
    margin-top: 4px;
}

.gdpr-label a {
    color: var(--color-accent);
}

.cta-btn {
    display: inline-block;
    width: 100%;
    padding: 14px 24px;
    background: var(--color-primary);
    color: var(--color-bg);
    border: 2px solid var(--color-primary);
    border-radius: 999px;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    transition: background var(--transition), color var(--transition), box-shadow var(--transition), font-weight var(--transition);
}

.cta-btn:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.3);
    font-weight: 700;
}

.cta-btn:not(:hover) {
    animation: pulse-glow 2.5s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 0 0 transparent; }
    50% { box-shadow: 0 0 12px rgba(56, 189, 248, 0.15); }
}

.legal-disclaimer {
    max-width: 1200px;
    margin: calc(var(--spacing) * 2) auto 0;
    padding: 0 var(--spacing);
    font-size: 0.75rem;
    color: var(--color-primary);
    opacity: 0.7;
}

.section {
    padding: calc(var(--spacing) * 4) 0;
    opacity: 0;
    transform: translateY(20px);
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.section h2 {
    text-align: center;
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin: 0 0 8px;
}

.section-sub {
    text-align: center;
    color: var(--color-primary);
    opacity: 0.8;
    margin: 0 0 calc(var(--spacing) * 2);
}

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

.card {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: calc(var(--spacing) * 1.5);
    border-radius: var(--radius);
    border: 1px solid rgba(226, 232, 240, 0.5);
    box-shadow: 0 8px 32px rgba(15, 23, 42, 0.06), inset 0 1px 0 rgba(255, 255, 255, 0.8);
    transition: box-shadow var(--transition), transform var(--transition), background var(--transition);
}

.card:hover {
    box-shadow: 0 12px 40px rgba(56, 189, 248, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
    background: rgba(255, 255, 255, 0.75);
}

.card h3 {
    margin: 0 0 8px;
    font-size: 1.125rem;
}

.card p {
    margin: 0;
    font-size: 0.95rem;
}

.card footer {
    margin-top: var(--spacing);
    font-size: 0.875rem;
    opacity: 0.8;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--spacing) * 3);
    align-items: center;
}

.content-grid.reverse {
    direction: rtl;
}

.content-grid.reverse > * {
    direction: ltr;
}

.content-grid .img-block {
    margin: 0;
}

.content-grid img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius);
}

.text-block p {
    margin: 0 0 var(--spacing);
}

@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
    }

    .content-grid,
    .content-grid.reverse {
        grid-template-columns: 1fr;
        direction: ltr;
    }
}

.faq-list {
    max-width: 700px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--color-secondary);
}

.faq-trigger {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing) 0;
    background: none;
    border: none;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-primary);
    cursor: pointer;
    text-align: left;
    transition: color var(--transition);
}

.faq-trigger:hover {
    color: var(--color-accent);
}

.faq-trigger::after {
    content: '+';
    font-size: 1.25rem;
}

.faq-item.is-open .faq-trigger::after {
    content: '−';
}

.faq-content {
    padding-bottom: var(--spacing);
}

.faq-content[hidden] {
    display: none;
}

.faq-content p {
    margin: 0;
    padding-left: 0;
}

.contact-info {
    text-align: center;
}

.contact-info p {
    margin: var(--spacing) 0;
}

.contact-link {
    color: var(--color-accent);
    font-weight: 600;
    text-decoration: none;
}

.contact-link:hover {
    text-decoration: underline;
}

.site-footer {
    margin-top: auto;
    padding: calc(var(--spacing) * 2);
    background: var(--color-primary);
    color: var(--color-bg);
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing);
    margin-bottom: var(--spacing);
}

.footer-nav a {
    color: var(--color-bg);
    text-decoration: none;
    font-size: 0.9rem;
}

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

.copyright {
    text-align: center;
    margin: 0;
    font-size: 0.875rem;
    opacity: 0.9;
}

.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-primary);
    color: var(--color-bg);
    padding: var(--spacing);
    z-index: 200;
    box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.15);
}

.cookie-banner[hidden] {
    display: none !important;
}

.cookie-content,
.cookie-settings {
    max-width: 1200px;
    margin: 0 auto;
}

.cookie-settings {
    margin-top: var(--spacing);
    padding-top: var(--spacing);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.cookie-settings label {
    display: block;
    margin-bottom: 8px;
}

.cookie-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing);
    margin-top: var(--spacing);
}

.cookie-btn {
    padding: 10px 20px;
    border: 2px solid var(--color-bg);
    background: transparent;
    color: var(--color-bg);
    font-family: inherit;
    font-weight: 600;
    cursor: pointer;
    border-radius: 999px;
    transition: background var(--transition), color var(--transition);
}

.cookie-btn:hover {
    background: var(--color-bg);
    color: var(--color-primary);
}

.thank-you-main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.thank-you-section {
    padding: calc(var(--spacing) * 4);
}

.thank-you-section h1 {
    text-align: center;
    margin-bottom: var(--spacing);
}

.thank-you-section p {
    text-align: center;
    margin-bottom: calc(var(--spacing) * 2);
}

.thank-you-section .cta-btn {
    display: block;
    max-width: 200px;
    margin: 0 auto;
    text-align: center;
}

.legal-page main {
    padding: calc(var(--spacing) * 4) 0;
}

.legal-page h1 {
    margin-bottom: var(--spacing);
}

.legal-page h2 {
    margin-top: calc(var(--spacing) * 2);
}

.legal-page p {
    margin: var(--spacing) 0;
}

.date {
    font-style: italic;
}