:root {
    --primary-color: #0ea5e9;
    --primary-strong: #0284c7;
    --secondary-color: #8b5cf6;
    --accent-color: #22c55e;
    --primary-light: #e0f2fe;
    --text-color: #0f172a;
    --text-light: #475569;
    --bg-color: #ffffff;
    --bg-light: #f8fafc;
    --card-bg: rgba(255, 255, 255, 0.88);
    --border-color: rgba(14, 165, 233, 0.15);
    --shadow-soft: 0 10px 30px -14px rgba(15, 23, 42, 0.22);
    --shadow-hover: 0 22px 42px -18px rgba(14, 165, 233, 0.35);
    --radius-lg: 24px;
    --radius-md: 16px;
    --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background: radial-gradient(circle at 20% 0%, #eff6ff 0%, #ffffff 45%), radial-gradient(circle at 80% 20%, #eef2ff 0%, #ffffff 42%);
    color: var(--text-color);
    line-height: 1.65;
}

img,
iframe {
    max-width: 100%;
}

.container {
    width: min(1200px, 100% - 40px);
    margin: 0 auto;
}

.skip-link {
    position: absolute;
    top: -42px;
    left: 12px;
    background: var(--text-color);
    color: #fff;
    padding: 10px 14px;
    border-radius: 10px;
    z-index: 3000;
    text-decoration: none;
}

.skip-link:focus {
    top: 10px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: linear-gradient(120deg, var(--primary-color), var(--secondary-color));
    color: #fff;
    box-shadow: 0 8px 22px rgba(14, 165, 233, 0.25);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 26px rgba(14, 165, 233, 0.3);
}

.btn-large {
    background: linear-gradient(120deg, var(--primary-color), var(--secondary-color));
    color: #fff;
    padding: 15px 36px;
    font-size: 1rem;
    box-shadow: 0 10px 24px rgba(14, 165, 233, 0.28);
}

.btn-large:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 32px rgba(14, 165, 233, 0.35);
}

.btn-outline {
    background: #fff;
    border: 1px solid var(--primary-color);
    color: var(--primary-strong);
}

.btn-outline:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
}

header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

header.scrolled {
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(12px);
    border-bottom-color: rgba(148, 163, 184, 0.25);
    box-shadow: 0 10px 26px -20px rgba(15, 23, 42, 0.4);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    height: 80px;
}

.logo {
    font-size: 1.7rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--primary-strong);
}

.logo strong,
.footer-logo strong {
    color: var(--secondary-color);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 24px;
}

.nav-links a {
    color: var(--text-color);
    font-weight: 500;
    text-decoration: none;
    position: relative;
    padding: 4px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 0;
    height: 2px;
    background: linear-gradient(120deg, var(--primary-color), var(--secondary-color));
    transition: var(--transition);
}

.nav-links a:hover,
.nav-links a:focus-visible {
    color: var(--primary-strong);
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.9);
    border-radius: 12px;
    color: var(--primary-strong);
    cursor: pointer;
}

section {
    padding: 100px 0;
}

#hero {
    position: relative;
    min-height: 100vh;
    background: linear-gradient(170deg, rgba(219, 234, 254, 0.88), rgba(238, 242, 255, 0.7), rgba(255, 255, 255, 0.98)), url('https://images.unsplash.com/photo-1522069213448-443a614da9b6?auto=format&fit=crop&q=80&w=1920') center/cover fixed;
    display: grid;
    place-items: center;
    overflow: hidden;
    padding-top: 110px;
}

.bubbles {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.bubble {
    position: absolute;
    bottom: -60px;
    border-radius: 50%;
    background: linear-gradient(180deg, rgba(14, 165, 233, 0.34), rgba(139, 92, 246, 0.18));
    animation: floatUp infinite ease-in;
}

@keyframes floatUp {
    0% {
        transform: translateY(0) scale(1);
        opacity: 0;
    }

    25% {
        opacity: 0.9;
    }

    100% {
        transform: translateY(-105vh) scale(1.45);
        opacity: 0;
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 860px;
    text-align: center;
    padding: 24px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.78);
    border: 1px solid var(--border-color);
    border-radius: 999px;
    padding: 8px 14px;
    color: var(--primary-strong);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 18px;
}

.hero-content h1 {
    font-size: clamp(2.1rem, 4.2vw, 4rem);
    line-height: 1.15;
    margin-bottom: 18px;
    letter-spacing: -0.02em;
}

.hero-content p {
    font-size: clamp(1rem, 1.45vw, 1.25rem);
    max-width: 700px;
    margin: 0 auto 30px;
    color: var(--text-light);
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
}

.section-title {
    text-align: center;
    font-size: clamp(1.9rem, 3.2vw, 2.55rem);
    margin-bottom: 52px;
    line-height: 1.2;
}

.section-title::after {
    content: '';
    display: block;
    width: 72px;
    height: 4px;
    border-radius: 999px;
    margin: 16px auto 0;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.section-title.left {
    text-align: left;
}

.section-title.left::after {
    margin: 16px 0 0;
}

.bg-light {
    background: linear-gradient(140deg, rgba(224, 242, 254, 0.55), rgba(237, 233, 254, 0.42), rgba(255, 255, 255, 0.78));
    border: 1px solid rgba(148, 163, 184, 0.15);
    border-radius: 36px;
    margin: 24px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 30px;
}

.card,
.tech-item,
.warranty-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(8px);
}

.card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    position: relative;
}

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

.card img {
    width: 100%;
    height: 270px;
    object-fit: cover;
}

.card-content {
    padding: 26px;
}

.card-content h3 {
    color: var(--primary-strong);
    margin-bottom: 12px;
    font-size: 1.45rem;
}

.card-content p,
.tech-item p,
.warranty-intro,
.warranty-card p,
.modal-desc {
    color: var(--text-light);
}

.specs {
    list-style: none;
    margin: 20px 0 24px;
}

.specs li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    font-weight: 500;
}

.specs i {
    width: 30px;
    height: 30px;
    display: grid;
    place-items: center;
    border-radius: 999px;
    background: var(--primary-light);
    color: var(--primary-strong);
    font-size: 0.9rem;
}

.card.disabled {
    opacity: 0.72;
    filter: grayscale(30%);
    pointer-events: none;
}

.coming-soon {
    position: absolute;
    top: 16px;
    right: 16px;
    background: rgba(255, 255, 255, 0.92);
    color: var(--secondary-color);
    font-weight: 700;
    border: 1px solid rgba(139, 92, 246, 0.3);
    padding: 7px 14px;
    border-radius: 999px;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
    margin-bottom: 54px;
}

.tech-item {
    border-radius: var(--radius-md);
    padding: 28px 22px;
    transition: var(--transition);
    text-align: center;
}

.tech-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}

.tech-icon {
    width: 68px;
    height: 68px;
    margin: 0 auto 22px;
    border-radius: 18px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--primary-light), #ede9fe);
    color: var(--primary-strong);
    font-size: 1.8rem;
}

.tech-item h3 {
    margin-bottom: 12px;
    font-size: 1.25rem;
}

.carousel-container {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    border-radius: 22px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-soft);
}

.carousel-track {
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.tech-slide {
    min-width: 100%;
}

.tech-img-wrapper {
    position: relative;
    height: 360px;
    overflow: hidden;
}

.tech-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.tech-img-wrapper:hover img {
    transform: scale(1.05);
}

.tech-img-overlay {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 18px;
    background: linear-gradient(transparent, rgba(15, 23, 42, 0.94));
    color: #fff;
    text-align: center;
    font-weight: 600;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.8);
    color: var(--primary-strong);
    cursor: pointer;
    z-index: 2;
    transition: var(--transition);
}

.carousel-btn:hover {
    background: var(--primary-strong);
    color: #fff;
}

.prev-btn {
    left: 14px;
}

.next-btn {
    right: 14px;
}

.flex-row {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 54px;
}

.app-features {
    list-style: none;
    margin: 18px 0 26px;
}

.app-features li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 12px;
}

.app-features i {
    margin-top: 4px;
    color: var(--accent-color);
}

.presets-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin-top: 28px;
}

.preset-item {
    border-radius: 14px;
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.85);
    padding: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    transition: var(--transition);
}

.preset-item i {
    color: var(--primary-strong);
}

.preset-item:hover {
    transform: translateY(-3px);
    border-color: rgba(14, 165, 233, 0.4);
}

.store-buttons {
    display: flex;
    gap: 12px;
    margin-top: 26px;
    flex-wrap: wrap;
}

.store-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    background: #0f172a;
    color: #fff;
    text-decoration: none;
    border-radius: 12px;
    padding: 10px 18px;
    transition: var(--transition);
}

.store-btn:hover {
    transform: translateY(-3px);
    background: linear-gradient(120deg, var(--primary-strong), var(--secondary-color));
}

.store-btn i {
    font-size: 1.8rem;
}

.store-btn span {
    font-size: 0.74rem;
    line-height: 1.2;
}

.store-btn strong {
    font-size: 1rem;
}

.floating-img img {
    width: min(340px, 100%);
    border-radius: 32px;
    box-shadow: 0 26px 50px -20px rgba(14, 165, 233, 0.38);
    animation: floating 6s ease-in-out infinite;
}

@keyframes floating {
    0% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-14px);
    }

    100% {
        transform: translateY(0);
    }
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}

.gallery-grid.is-switching img {
    opacity: 0.7;
    transform: scale(0.985);
}

.gallery-grid img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 18px;
    box-shadow: var(--shadow-soft);
    transition: var(--transition);
}

.gallery-grid img:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: var(--shadow-hover);
}

.gallery-controls {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 12px;
}

.gallery-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.9);
    color: var(--primary-strong);
    border-radius: 999px;
    padding: 10px 18px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.gallery-btn:hover {
    background: var(--primary-strong);
    color: #fff;
    transform: translateY(-2px);
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--border-color);
}

.video-wrapper iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.warranty-intro {
    max-width: 840px;
    margin: 0 auto 40px;
    text-align: center;
    font-size: 1.08rem;
}

.warranty-card {
    border-radius: var(--radius-md);
    padding: 34px 26px;
    text-align: center;
    border-top: 4px solid var(--secondary-color);
    transition: var(--transition);
}

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

.w-icon {
    width: 74px;
    height: 74px;
    margin: 0 auto 18px;
    border-radius: 999px;
    background: linear-gradient(130deg, var(--primary-light), #ede9fe);
    display: grid;
    place-items: center;
    color: var(--primary-strong);
    font-size: 1.9rem;
}

.warranty-card h3 {
    margin-bottom: 10px;
    font-size: 1.25rem;
}

footer {
    margin-top: 56px;
    border-top-left-radius: 34px;
    border-top-right-radius: 34px;
    background: linear-gradient(145deg, #0f172a, #1e293b 65%, #334155);
    color: #fff;
    padding: 56px 0 28px;
}

.footer-content {
    text-align: center;
    display: grid;
    gap: 18px;
}

.footer-logo {
    font-size: 1.95rem;
    font-weight: 700;
}

.social-links a {
    color: #fff;
    font-size: 1.55rem;
    margin: 0 10px;
    transition: var(--transition);
}

.social-links a:hover {
    color: #7dd3fc;
}

.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.62);
    backdrop-filter: blur(4px);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.25s ease;
}

.modal.show {
    display: flex;
    opacity: 1;
}

.modal-content {
    width: min(920px, 92vw);
    background: #fff;
    border-radius: 22px;
    overflow: hidden;
    box-shadow: 0 22px 56px rgba(15, 23, 42, 0.4);
    transform: translateY(-25px);
    transition: transform 0.25s ease;
}

.modal.show .modal-content {
    transform: translateY(0);
}

.close-btn {
    position: absolute;
    top: 14px;
    right: 18px;
    font-size: 28px;
    color: #64748b;
    cursor: pointer;
    z-index: 2;
}

.modal-body {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
}

.modal-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.modal-info {
    padding: 34px 28px;
}

.modal-info h2 {
    color: var(--primary-strong);
    margin-bottom: 8px;
}

.modal-info h4 {
    margin-bottom: 14px;
}

.spec-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 22px;
}

.spec-table td {
    border-bottom: 1px solid #e2e8f0;
    padding: 10px 8px;
    vertical-align: top;
}

.spec-table tr:last-child td {
    border-bottom: none;
}

.reveal {
    opacity: 0;
    transform: translateY(26px);
    transition: all 0.85s cubic-bezier(0.2, 0.65, 0.3, 1);
}

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

@media (max-width: 1100px) {
    .nav-links {
        gap: 18px;
    }

    .grid-3 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .gallery-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .flex-row {
        gap: 36px;
    }
}

@media (max-width: 900px) {
    header.scrolled {
        background: rgba(255, 255, 255, 0.95);
    }

    .menu-toggle {
        display: inline-grid;
        place-items: center;
        order: 3;
    }

    nav {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        border-bottom: 1px solid #e2e8f0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    nav.open {
        max-height: 320px;
    }

    .nav-links {
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        padding: 8px 20px 16px;
    }

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        display: block;
        width: 100%;
        padding: 10px 0;
    }

    .header-container > .btn-primary {
        display: none;
    }

    #hero {
        background-attachment: scroll;
    }

    .tech-grid,
    .video-grid,
    .flex-row,
    .modal-body {
        grid-template-columns: 1fr;
    }

    .app-image {
        order: -1;
    }
}

@media (max-width: 768px) {
    section {
        padding: 78px 0;
    }

    .container {
        width: min(1200px, 100% - 28px);
    }

    .bg-light {
        margin: 10px;
        border-radius: 22px;
    }

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

    .card img,
    .gallery-grid img,
    .tech-img-wrapper {
        height: 240px;
    }

    .hero-content {
        padding: 12px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .store-buttons {
        flex-direction: column;
    }

    .store-btn {
        width: 100%;
    }

    .modal-info {
        padding: 22px 18px;
    }
}

@media (max-width: 480px) {
    .header-container {
        height: 72px;
    }

    nav {
        top: 72px;
    }

    .logo {
        font-size: 1.45rem;
    }

    .hero-badge {
        font-size: 0.8rem;
    }

    .warranty-intro {
        font-size: 1rem;
    }

    .carousel-btn {
        width: 38px;
        height: 38px;
    }
}