:root {
    --lang-offset: 1rem;
    --bg: #050816;
    --bg-alt: #0a1021;
    --panel: #0f172a;
    --panel-strong: #0b1220;
    --stroke: rgba(94, 234, 212, 0.35);
    --accent: #22d3ee;
    --accent-2: #f97316;
    --text: #e6edf7;
    --muted: #9ca3af;
    --card-border: rgba(255, 255, 255, 0.08);
    --radius: 18px;
}

* {
    box-sizing: border-box;
}

html {
    width: 100%;
    overflow-x: hidden;
}

body {
    margin: 0;
    font-family: 'Manrope', system-ui, -apple-system, sans-serif;
    background: radial-gradient(circle at 15% 20%, rgba(34, 211, 238, 0.08), transparent 26%), radial-gradient(circle at 80% 0%, rgba(249, 115, 22, 0.12), transparent 30%), radial-gradient(circle at 50% 100%, rgba(34, 211, 238, 0.08), transparent 32%), var(--bg);
    color: var(--text);
    line-height: 1.6;
    position: relative;
    min-height: 100vh;
    overflow-x: hidden;
}

a {
    color: inherit;
}

.shell {
    width: 100%;
    max-width: 1200px;
    padding: 0 1.25rem;
    margin: 0 auto;
}

.lang-switcher {
    position: fixed;
    top: 1rem;
    right: var(--lang-offset);
    left: auto;
    z-index: 30;
    display: flex;
    gap: 0.5rem;
    padding: 0.4rem;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.75);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(12px);
    white-space: nowrap;
    width: max-content;
    transform: translateZ(0);
}

@supports (padding: max(0px)) {
    .lang-switcher {
        top: max(0.75rem, env(safe-area-inset-top));
        right: max(var(--lang-offset), env(safe-area-inset-right));
    }
}

.btn-lang {
    font-weight: 700;
    font-size: 0.9rem;
    padding: 0.45rem 0.95rem;
    border-radius: 999px;
    border: 1px solid transparent;
    color: var(--muted);
    background: transparent;
    transition: all 0.25s ease;
}

.btn-lang:hover {
    color: var(--text);
    border-color: var(--stroke);
}

.hero {
    position: relative;
    overflow: hidden;
    padding: 6.5rem 0 4rem;
}

.hero::before,
.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0.6;
    pointer-events: none;
}

.hero::before {
    background: radial-gradient(circle at 30% 30%, rgba(34, 211, 238, 0.12), transparent 28%), radial-gradient(circle at 80% 20%, rgba(249, 115, 22, 0.12), transparent 30%);
}

.hero::after {
    background: linear-gradient(120deg, rgba(255, 255, 255, 0.02) 0%, rgba(255, 255, 255, 0.08) 25%, rgba(255, 255, 255, 0.02) 50%);
    mask-image: linear-gradient(to bottom, transparent, #000 20%, #000 80%, transparent);
}

.hero-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2.5rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.45rem 0.9rem;
    border-radius: 999px;
    background: rgba(34, 211, 238, 0.14);
    color: var(--accent);
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.hero-title {
    font-family: 'Space Grotesk', 'Manrope', sans-serif;
    font-size: clamp(2.75rem, 4vw, 4.5rem);
    font-weight: 700;
    letter-spacing: -0.04em;
    margin: 1rem 0 0.75rem;
}

.gradient-text {
    background: linear-gradient(120deg, #67e8f9, #22d3ee, #f97316);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-sub {
    max-width: 620px;
    color: var(--muted);
    font-size: 1.05rem;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    margin: 1.5rem 0;
}

.tag {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--card-border);
    color: var(--text);
    padding: 0.55rem 0.9rem;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.95rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin: 1.75rem 0 1rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.9rem 1.4rem;
    border-radius: 999px;
    font-weight: 700;
    border: 1px solid transparent;
    transition: all 0.25s ease;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(120deg, #22d3ee, #0ea5e9);
    color: #02101d;
    box-shadow: 0 18px 40px rgba(14, 165, 233, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 24px 48px rgba(14, 165, 233, 0.35);
}

.btn-ghost {
    border-color: var(--card-border);
    background: rgba(15, 23, 42, 0.65);
    color: var(--text);
}

.btn-ghost:hover {
    border-color: var(--stroke);
    transform: translateY(-2px);
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-top: 0.5rem;
}

.meta-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.5rem 0.9rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--card-border);
    color: var(--muted);
    font-weight: 600;
    font-size: 0.95rem;
}

.meta-chip::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: linear-gradient(120deg, var(--accent), var(--accent-2));
}

.hero-visual {
    position: relative;
}

.preview-shell {
    position: relative;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: 22px;
    overflow: visible;
    box-shadow: none;
}

.preview-shell::before {
    content: '';
    position: absolute;
    inset: 12% 8%;
    background: radial-gradient(circle at 50% 50%, rgba(34, 211, 238, 0.12), transparent 45%);
    filter: blur(10px);
    opacity: 0.6;
}

.orb {
    position: absolute;
    filter: blur(40px);
    opacity: 0.7;
    z-index: 0;
}

.logo-float {
    position: relative;
    z-index: 1;
    display: grid;
    place-items: center;
    gap: 1rem;
    padding: 2rem 1.4rem;
}

.logo-glow {
    position: absolute;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(34, 211, 238, 0.2), rgba(249, 115, 22, 0.14), transparent 70%);
    filter: blur(24px);
    opacity: 0.8;
}

.logo-card {
    position: relative;
    width: min(300px, 70vw);
    aspect-ratio: 1 / 1;
    border-radius: 18px;
    background: linear-gradient(150deg, rgba(34, 211, 238, 0.12), rgba(11, 18, 32, 0.85));
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 28px 50px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(34, 211, 238, 0.06);
    display: grid;
    place-items: center;
    overflow: hidden;
    animation: floaty 5.5s ease-in-out infinite;
}

.logo-card::after {
    content: '';
    position: absolute;
    inset: 6%;
    border-radius: 14px;
    border: 1px solid rgba(34, 211, 238, 0.18);
    opacity: 0.7;
}

.logo-img {
    width: 62%;
    height: auto;
    object-fit: contain;
    filter: drop-shadow(0 14px 26px rgba(14, 165, 233, 0.32));
}

.logo-caption {
    color: var(--muted);
    font-weight: 600;
    text-align: center;
}

@keyframes floaty {
    0% { transform: translateY(0px) rotate(-2deg); }
    50% { transform: translateY(-12px) rotate(2deg); }
    100% { transform: translateY(0px) rotate(-2deg); }
}

.orb-cyan {
    width: 220px;
    height: 220px;
    background: rgba(34, 211, 238, 0.3);
    top: 12%;
    left: 10%;
}

.orb-amber {
    width: 180px;
    height: 180px;
    background: rgba(249, 115, 22, 0.25);
    bottom: 8%;
    right: 6%;
}

.preview-card {
    position: relative;
    z-index: 1;
    background: rgba(11, 18, 32, 0.9);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 0.75rem;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
    overflow: hidden;
}

.preview-card img {
    width: 100%;
    border-radius: 12px;
    object-fit: cover;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.preview-card.main {
    border-color: rgba(34, 211, 238, 0.4);
}

.preview-card .preview-heading {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
    margin-bottom: 0.5rem;
}

.preview-card .label {
    font-weight: 700;
    letter-spacing: 0.01em;
}

.preview-card .muted {
    color: var(--muted);
    font-size: 0.9rem;
}

.preview-card.floating {
    position: absolute;
    width: min(240px, 48vw);
    background: rgba(12, 18, 34, 0.92);
}

.preview-card.top-left {
    top: 12%;
    left: -8%;
    transform: rotate(-3deg);
}

.preview-card.bottom-right {
    bottom: -6%;
    right: -6%;
    transform: rotate(4deg);
}

main {
    padding: 1rem 0 4rem;
}

.section-block {
    margin: 4.5rem 0;
}

.section-head {
    text-align: center;
    margin-bottom: 2.25rem;
}

.section-title {
    font-family: 'Space Grotesk', 'Manrope', sans-serif;
    font-size: clamp(2rem, 3vw, 2.7rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-top: 0.75rem;
}

.section-sub {
    color: var(--muted);
    max-width: 700px;
    margin: 0.4rem auto 0;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.feature-panel {
    padding: 1.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--card-border);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01)) var(--panel);
    box-shadow: 0 24px 40px rgba(0, 0, 0, 0.25);
    transition: transform 0.25s ease, border-color 0.25s ease;
}

.feature-panel:hover {
    transform: translateY(-6px);
    border-color: var(--stroke);
}

.panel-title {
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.panel-body {
    color: var(--muted);
}

.panel-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-top: 0.8rem;
    padding: 0.55rem 0.85rem;
    border-radius: 12px;
    border: 1px solid var(--card-border);
    color: var(--accent);
    font-weight: 700;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all 0.2s ease;
}

.panel-link:hover {
    border-color: var(--stroke);
    color: var(--text);
    transform: translateY(-2px);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.2rem;
}

.feature-card {
    display: flex;
    flex-direction: column;
    background: var(--panel);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.feature-card:hover {
    transform: translateY(-6px);
    border-color: var(--stroke);
}

.feature-card img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    border-bottom: 1px solid var(--card-border);
}

.feature-card-body {
    padding: 1rem 1.1rem 1.2rem;
}

.feature-card-title {
    font-weight: 700;
    margin-bottom: 0.35rem;
}

.feature-card-text {
    color: var(--muted);
    font-size: 0.95rem;
}

.timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
}

.timeline-step {
    background: var(--panel);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 1.4rem;
    text-align: center;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.timeline-step:hover {
    transform: translateY(-6px);
    border-color: var(--stroke);
}

.step-badge {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    border: 2px solid var(--accent);
    background: rgba(34, 211, 238, 0.1);
    color: var(--accent);
    display: grid;
    place-items: center;
    font-weight: 800;
    margin: 0 auto 0.75rem;
    font-family: 'Space Grotesk', 'Manrope', sans-serif;
}

.download-card {
    position: relative;
    background: linear-gradient(160deg, rgba(34, 211, 238, 0.12), rgba(11, 18, 32, 0.95));
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 2.2rem;
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.35);
}

.download-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 20%, rgba(34, 211, 238, 0.2), transparent 35%), radial-gradient(circle at 80% 80%, rgba(249, 115, 22, 0.2), transparent 35%);
    opacity: 0.7;
    pointer-events: none;
}

.download-card .section-head {
    position: relative;
    z-index: 1;
    margin-bottom: 1.5rem;
}

#loading-indicator {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    z-index: 1;
}

#download-buttons {
    position: relative;
    z-index: 1;
}

.platform-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 1rem;
}

.platform-grid a {
    display: block;
    padding: 1.1rem;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--card-border);
    color: var(--text);
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    height: 100%;
}

.platform-grid a:hover {
    border-color: var(--stroke);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(14, 165, 233, 0.2);
}

.platform-grid .icon {
    color: var(--accent);
    margin-bottom: 0.4rem;
}

.alert {
    position: relative;
    z-index: 1;
    background: rgba(127, 29, 29, 0.35);
    border: 1px solid rgba(248, 113, 113, 0.4);
    color: #fecdd3;
    border-radius: 14px;
    padding: 1rem 1.2rem;
    margin-top: 1rem;
}

.version-link {
    position: relative;
    z-index: 1;
    margin-top: 1.25rem;
}

footer {
    padding: 2.5rem 0 3rem;
    color: var(--muted);
    text-align: center;
}

footer p:first-child {
    color: var(--text);
    font-family: 'Space Grotesk', 'Manrope', sans-serif;
    font-weight: 700;
    letter-spacing: 0.02em;
}

@media (max-width: 768px) {
    .lang-switcher {
        right: 0.75rem;
        top: 0.75rem;
    }

    .preview-card.top-left {
        left: 0;
        transform: rotate(-2deg);
    }

    .preview-card.bottom-right {
        right: 0;
        transform: rotate(2deg);
    }
}

@media (max-width: 640px) {
    .shell {
        padding: 0 1rem;
    }

    .hero {
        padding: 5rem 0 3rem;
    }

    .hero-grid {
        gap: 1.75rem;
    }

    .hero-title {
        font-size: clamp(2.1rem, 7vw, 3rem);
    }

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

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

    .card-grid,
    .feature-grid,
    .timeline {
        grid-template-columns: 1fr;
    }

    .download-card {
        padding: 1.6rem 1.25rem;
    }

    .lang-switcher {
        gap: 0.3rem;
        padding: 0.35rem;
    }
}