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

:root {
    --primary-color: #0ea5e9;
    --primary-dark: #0284c7;
    --secondary-color: #f97316;
    --accent-color: #6366f1;
    --text-dark: #0f1419;
    --text-light: #64748b;
    --bg-light: #f1f5f9;
    --bg-white: #ffffff;
    --success-color: #10b981;
    --error-color: #ef4444;
    --border-color: #e2e8f0;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.15);
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 16px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    color: var(--text-dark);
    background: var(--bg-light);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============ HEADER ============ */
.header {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
}

.header-content {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    padding: 16px 0;
    gap: 30px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
    text-decoration: none;
    padding: 4px;
    border-radius: 10px;
    transition: var(--transition);
    position: relative;
}

.logo::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(131, 56, 236, 0.1));
    opacity: 0;
    transition: var(--transition);
    z-index: -1;
}

.logo:hover::before {
    opacity: 1;
}

.logo img {
    height: 80px;
    width: auto;
    object-fit: contain;
    transition: var(--transition);
    filter: drop-shadow(0 2px 4px rgba(0, 212, 255, 0.15));
}

.logo:hover {
    background: rgba(0, 212, 255, 0.08);
    transform: translateY(-2px);
}

.logo:hover img {
    transform: scale(1.08);
    filter: drop-shadow(0 4px 8px rgba(0, 212, 255, 0.25));
}

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

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

.nav-toggle span {
    width: 24px;
    height: 2.5px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(10px, 10px);
}

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

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 8px;
    margin: 0;
    flex-wrap: wrap;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 10px 16px;
    border-radius: 8px;
    transition: var(--transition);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transition: width 0.3s ease;
}

.nav-menu a:hover::after {
    width: calc(100% - 32px);
}

.nav-menu a:hover {
    background: rgba(0, 212, 255, 0.1);
}

.header-contact {
    flex-shrink: 0;
}

.contact-quick {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    padding: 10px 16px;
    border-radius: 8px;
    transition: var(--transition);
    background: rgba(0, 212, 255, 0.1);
}

.contact-quick:hover {
    background: rgba(0, 212, 255, 0.2);
    transform: translateX(4px);
}

/* ============ HERO SLIDER ============ */
.hero-slider {
    position: relative;
    height: 600px;
    overflow: hidden;
    background: var(--bg-white);
}

.slider {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.3) 0%, rgba(131, 56, 236, 0.3) 100%);
    z-index: 1;
}

.slide.active {
    opacity: 1;
}

.slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    z-index: 2;
    animation: slideInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    width: 90%;
    max-width: 800px;
}

.slide-content h1 {
    font-size: clamp(2.5rem, 8vw, 4rem);
    font-weight: 800;
    text-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    margin-bottom: 15px;
    letter-spacing: -1px;
}

.slide-content h2 {
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 700;
    text-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    margin-bottom: 15px;
    letter-spacing: -0.5px;
}

.slide-subtitle {
    font-size: 1.6rem;
    text-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    font-weight: 300;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translate(-50%, -40%);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.95);
    border: none;
    color: var(--text-dark);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 12px 16px;
    border-radius: 50%;
    transition: var(--transition);
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
}

.slider-btn:hover {
    background: white;
    transform: translateY(-50%) scale(1.1);
    box-shadow: var(--shadow-lg);
}

.slider-btn.prev {
    left: 30px;
}

.slider-btn.next {
    right: 30px;
}

.slider-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.slider-dot {
    width: 12px;
    height: 12px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.slider-dot:hover {
    background: rgba(255, 255, 255, 0.8);
}

.slider-dot.active {
    background: var(--primary-color);
    width: 32px;
    border-radius: 6px;
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.5);
}

/* ============ SECTIONS ============ */
.section {
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(131, 56, 236, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.section > * {
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    margin-bottom: 70px;
}

.section-header h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 15px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--text-dark) 0%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
}

.section-desc {
    font-size: 1.1rem;
    color: var(--text-light);
    font-weight: 400;
}

.section h3 {
    font-size: 1.5rem;
    margin: 40px 0 20px 0;
    color: var(--text-dark);
    font-weight: 700;
    text-align: center;
}

.section-arcove {
    background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-white) 100%);
}

.section-rovne {
    background: var(--bg-white);
}

.section-benefits {
    background: linear-gradient(180deg, var(--bg-white) 0%, var(--bg-light) 100%);
}

.section-info {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05) 0%, rgba(131, 56, 236, 0.05) 100%);
}

.section-contact {
    background: var(--bg-white);
}

/* ============ MANUFACTURERS SECTION ============ */
.section-manufacturers {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.08) 0%, rgba(131, 56, 236, 0.08) 100%);
    position: relative;
}

.manufacturers-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}

.manufacturers-header {
    text-align: left;
    margin-bottom: 40px;
}

.manufacturers-header h2 {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.manufacturers-text {
    margin-bottom: 40px;
}

.intro-text {
    font-size: 1.1rem;
    color: var(--text-dark);
    line-height: 1.8;
    margin-bottom: 20px;
}

.manufacturers-benefits {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.benefit-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.benefit-box {
    background: var(--bg-white);
    padding: 30px;
    border-radius: var(--border-radius);
    border: 1px solid rgba(0, 212, 255, 0.2);
    transition: var(--transition);
    position: relative;
}

.benefit-box:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translateY(-6px);
}

.benefit-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    font-size: 1.5rem;
    font-weight: 800;
    border-radius: 12px;
    margin-bottom: 15px;
    box-shadow: 0 8px 20px rgba(0, 212, 255, 0.3);
}

.benefit-box h3 {
    margin: 0 0 10px 0;
    color: var(--text-dark);
    font-size: 1.1rem;
    font-weight: 700;
}

.benefit-box p {
    margin: 0;
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

.manufacturers-visual {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    align-items: stretch;
}

.visual-card {
    background: var(--bg-white);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.visual-card.primary {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, rgba(0, 212, 255, 0.05) 100%);
    border-color: var(--primary-color);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.2);
}

.visual-card.secondary {
    background: linear-gradient(135deg, rgba(131, 56, 236, 0.1) 0%, rgba(131, 56, 236, 0.05) 100%);
    border-color: var(--accent-color);
    box-shadow: 0 0 30px rgba(131, 56, 236, 0.2);
}

.visual-card.accent {
    background: linear-gradient(135deg, rgba(255, 0, 110, 0.1) 0%, rgba(131, 56, 236, 0.05) 100%);
    border-color: var(--secondary-color);
    box-shadow: 0 0 30px rgba(255, 0, 110, 0.2);
}

.visual-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 50px rgba(0, 212, 255, 0.3);
}

.visual-icon {
    font-size: 3rem;
    margin-bottom: 15px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.visual-card h3 {
    margin: 0 0 8px 0;
    color: var(--text-dark);
    font-size: 1.15rem;
    font-weight: 700;
}

.visual-card p {
    margin: 0;
    color: var(--text-light);
    font-size: 0.9rem;
}

.manufacturers-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    padding: 50px 30px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    border-radius: var(--border-radius);
    text-align: center;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: white;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.stat-label {
    font-size: 1rem;
    font-weight: 500;
    opacity: 0.95;
}

/* ============ GRID & CARDS ============ */
.grid {
    display: grid;
    gap: 32px;
    margin-bottom: 40px;
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.mt-3 {
    margin-top: 40px;
}

.card {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid rgba(0, 212, 255, 0.1);
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.card-image {
    position: relative;
    width: 100%;
    height: 280px;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: var(--transition);
}

.card:hover .card-image img {
    transform: scale(1.08);
    filter: brightness(1.1);
}

.card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.8) 0%, rgba(131, 56, 236, 0.8) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.card:hover .card-overlay {
    opacity: 1;
}

.card h3 {
    padding: 20px 20px 10px;
    text-align: center;
    margin: 0;
    font-size: 1.2rem;
    color: var(--text-dark);
}

.card-desc {
    padding: 0 20px 20px;
    text-align: center;
    color: var(--text-light);
    font-size: 0.95rem;
    flex-grow: 1;
}

.btn-small {
    padding: 10px 24px;
    font-size: 0.9rem;
}

/* ============ COVER TYPES ============ */
.covers-grid {
    display: grid;
    gap: 30px;
    margin-bottom: 60px;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.cover-item {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    text-align: center;
}

.cover-item:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
    transform: translateY(-4px);
}

.cover-header {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.08) 0%, rgba(131, 56, 236, 0.08) 100%);
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
}

.cover-header h3 {
    margin: 0;
    color: var(--text-dark);
    font-size: 1.2rem;
}

.cover-item img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition);
    padding: 20px;
    max-height: 300px;
    object-fit: contain;
}

.cover-item:hover img {
    transform: scale(1.05);
}

/* ============ BENEFITS ============ */
.benefits-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.benefits-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.benefit-item {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 24px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.benefit-item:hover {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05) 0%, rgba(131, 56, 236, 0.05) 100%);
    border-color: var(--primary-color);
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.benefit-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    filter: drop-shadow(0 0 8px rgba(0, 212, 255, 0.3));
}

.benefit-content {
    flex-grow: 1;
}

.benefit-item h4 {
    margin: 0;
    color: var(--text-dark);
    font-weight: 700;
}

.benefit-item p {
    margin: 0;
    color: var(--text-light);
    font-size: 0.95rem;
}

.benefits-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ============ CAROUSEL ============ */
.carousel {
    position: relative;
    background: var(--bg-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    height: 400px;
    border: 1px solid var(--border-color);
    max-width: 500px;
    margin: 0 auto;
}

.carousel-image {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.6s ease, filter 0.6s ease;
}

.carousel-image.active {
    opacity: 1;
}

.carousel-image:not(.active) {
    filter: blur(2px);
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border: none;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 12px 16px;
    border-radius: 50%;
    transition: var(--transition);
    z-index: 5;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
}

.carousel-btn:hover {
    transform: translateY(-50%) scale(1.15);
    box-shadow: var(--shadow-lg);
}

.carousel-btn.prev {
    left: 20px;
}

.carousel-btn.next {
    right: 20px;
}

/* ============ INFO GRID ============ */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.info-card {
    background: var(--bg-white);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid rgba(0, 212, 255, 0.1);
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.info-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.info-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    filter: drop-shadow(0 0 8px rgba(0, 212, 255, 0.3));
}

.info-card h3 {
    margin: 0 0 15px 0;
    color: var(--text-dark);
    font-size: 1.3rem;
    text-align: center;
}

.info-card p {
    color: var(--text-light);
    text-align: center;
    margin: 0;
    line-height: 1.7;
}

/* ============ CONTACT SECTION ============ */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-method {
    background: var(--bg-white);
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.contact-method:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.contact-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    filter: drop-shadow(0 0 8px rgba(0, 212, 255, 0.3));
}

.contact-method h3 {
    margin: 0 0 12px 0;
    color: var(--text-dark);
    font-size: 1.2rem;
}

.contact-method a,
.contact-method p {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.contact-method a:hover {
    color: var(--primary-color);
}

/* ============ CONTACT FORM ============ */
.contact-form-wrapper {
    background: var(--bg-white);
    padding: 40px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group.checkbox {
    flex-direction: row;
    align-items: flex-start;
    gap: 10px;
}

.form-group label {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    color: var(--text-dark);
    background: var(--bg-white);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.form-group input::placeholder {
    color: var(--text-light);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-group.checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    cursor: pointer;
    flex-shrink: 0;
}

.form-group.checkbox label {
    margin: 0;
    cursor: pointer;
    font-weight: 400;
}

.btn-submit {
    margin-top: 10px;
    align-self: center;
}

.form-message {
    padding: 16px;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
    display: none;
}

.form-message.success {
    display: block;
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.form-message.error {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
    border: 1px solid var(--error-color);
}

/* ============ BUTTONS ============ */
.btn {
    display: inline-block;
    padding: 14px 36px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    text-align: center;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 212, 255, 0.3);
}

.btn-large {
    padding: 16px 48px;
    font-size: 1.05rem;
}

.cta-section {
    text-align: center;
    padding: 60px 0 0;
}

/* ============ FOOTER ============ */
.footer {
    background: linear-gradient(135deg, #1a1f35 0%, #16213e 100%);
    color: white;
    padding: 80px 0 30px;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 50px;
    margin-bottom: 50px;
    position: relative;
    z-index: 1;
    text-align: center;
}

.footer-section h4 {
    margin-bottom: 20px;
    color: var(--primary-color);
    font-size: 1.1rem;
    font-weight: 700;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.footer-section a:hover {
    color: var(--primary-color);
    transform: translateX(4px);
}

.social-links {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 50%;
    transition: var(--transition);
    transform: translateX(0) !important;
}

.social-link:hover {
    background: var(--primary-color);
    transform: translateY(-4px) !important;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    position: relative;
    z-index: 1;
    font-weight: 500;
}

.footer-bottom a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.footer-bottom a:hover {
    text-decoration: underline;
}

/* ============ BACK TO TOP ============ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    border: none;
    border-radius: 50%;
    width: 56px;
    height: 56px;
    font-size: 1.5rem;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 99;
    box-shadow: var(--shadow-lg);
}

.back-to-top:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 45px rgba(0, 212, 255, 0.4);
}

.back-to-top.show {
    display: flex;
}

.quick-phone {
    position: fixed;
    bottom: 30px;
    left: 30px;
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    border: none;
    border-radius: 50%;
    width: 64px;
    height: 64px;
    font-size: 1.6rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 99;
    box-shadow: 0 8px 24px rgba(16, 185, 129, 0.4);
    text-decoration: none;
    animation: phonePulse 2s infinite;
}

.quick-phone:hover {
    transform: scale(1.1) rotate(10deg);
    box-shadow: 0 12px 32px rgba(16, 185, 129, 0.6);
}

@keyframes phonePulse {
    0%, 100% {
        box-shadow: 0 8px 24px rgba(16, 185, 129, 0.4);
    }
    50% {
        box-shadow: 0 8px 32px rgba(16, 185, 129, 0.7), 0 0 0 8px rgba(16, 185, 129, 0.2);
    }
}

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
    .header-content {
        gap: 15px;
    }

    .logo img {
        height: 60px;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        gap: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: var(--shadow-md);
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu.active {
        max-height: 400px;
    }

    .nav-menu a {
        display: block;
        padding: 14px 20px;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu a::after {
        display: none;
    }

    .nav-menu a:hover {
        background: rgba(0, 212, 255, 0.15);
    }

    .header-contact {
        display: none;
    }

    .slide-content h1 {
        font-size: 2.4rem;
    }

    .slide-content h2 {
        font-size: 2rem;
    }

    .section {
        padding: 60px 0;
    }

    .section-header {
        margin-bottom: 50px;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .grid-3 {
        grid-template-columns: 1fr;
    }

    .hero-slider {
        height: 450px;
    }

    .carousel {
        height: 300px;
    }

    .benefits-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .manufacturers-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .benefit-row {
        grid-template-columns: 1fr;
    }

    .manufacturers-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
        padding: 40px 20px;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
        text-align: left;
    }

    .contact-method,
    .info-card {
        text-align: left;
    }

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

    .contact-form-wrapper {
        padding: 30px 20px;
    }
}

@media (max-width: 480px) {
    .slide-content h1 {
        font-size: 1.8rem;
    }

    .slide-content h2 {
        font-size: 1.5rem;
    }

    .slide-subtitle {
        font-size: 1.3rem;
    }

    .logo img {
        height: 65px;
    }

    .section {
        padding: 40px 0;
    }

    .section-header h2 {
        font-size: 1.5rem;
    }

    .section-header {
        margin-bottom: 30px;
    }

    .grid {
        gap: 20px;
    }

    .carousel {
        height: 220px;
    }

    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }

    .btn-large {
        padding: 12px 32px;
        font-size: 1rem;
    }

    .slider-btn {
        padding: 8px 10px;
        font-size: 1rem;
    }

    .slider-btn.prev {
        left: 10px;
    }

    .slider-btn.next {
        right: 10px;
    }

    .back-to-top {
        width: 48px;
        height: 48px;
        bottom: 20px;
        right: 20px;
        font-size: 1.2rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 20px;
        text-align: center;
    }

    .benefits-list {
        grid-template-columns: 1fr;
    }

    .covers-grid {
        grid-template-columns: 1fr;
    }

    .contact-info {
        gap: 20px;
    }

    .contact-method {
        padding: 20px;
    }

    .contact-form-wrapper {
        padding: 20px;
    }

    .social-links {
        gap: 10px;
    }

    .social-link {
        width: 40px;
        height: 40px;
        font-size: 0.9rem;
    }

    .info-grid {
        grid-template-columns: 1fr;
    }

    .benefit-item {
        padding: 16px;
    }

    .cover-item {
        padding: 0;
    }

    .cover-header {
        padding: 16px;
    }

    .cover-header h3 {
        font-size: 1rem;
    }

    .card-desc {
        font-size: 0.9rem;
    }

    .manufacturers-stats {
        grid-template-columns: 1fr;
        gap: 15px;
        padding: 30px 15px;
    }

    .stat-number {
        font-size: 2rem;
    }

    .benefit-box {
        padding: 20px;
    }

    .benefit-number {
        width: 44px;
        height: 44px;
        font-size: 1.3rem;
    }

    .manufacturers-header {
        text-align: center;
        margin-bottom: 30px;
    }
}

/* ============ SCROLLBAR ============ */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-light);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary-color), var(--accent-color));
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
}

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

.card,
.benefit-item {
    animation: fadeInUp 0.6s ease-out;
}

/* Přidej tento CSS na konec souboru */

/* ============ COVERS STACK ============ */
.covers-stack {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 60px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.cover-item-full {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    text-align: center;
}

.cover-item-full:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
    transform: translateY(-4px);
}

.cover-item-full .cover-header {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.08) 0%, rgba(131, 56, 236, 0.08) 100%);
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
}

.cover-item-full .cover-header h3 {
    margin: 0;
    color: var(--text-dark);
    font-size: 1.2rem;
    font-weight: 700;
}

.cover-item-full img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition);
    padding: 30px;
    max-height: 400px;
    object-fit: contain;
}

.cover-item-full:hover img {
    transform: scale(1.05);
    filter: brightness(1.05);
}

/* Responsive */
@media (max-width: 768px) {
    .covers-stack {
        gap: 20px;
        margin-bottom: 40px;
    }

    .cover-item-full .cover-header {
        padding: 20px;
    }

    .cover-item-full .cover-header h3 {
        font-size: 1.1rem;
    }

    .cover-item-full img {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .covers-stack {
        gap: 15px;
        margin-bottom: 30px;
    }

    .cover-item-full .cover-header {
        padding: 16px;
    }

    .cover-item-full .cover-header h3 {
        font-size: 1rem;
    }

    .cover-item-full img {
        padding: 15px;
        max-height: 300px;
    }
}