:root {
    --color-primary: #4b0082;
    --color-secondary: #6a0dad;
    --color-accent: #00ffff;
    --color-bg: #f5f3ff;
    --color-text: #1a1228;
    --color-text-light: #5a5270;
    --color-border: #d8d0ef;
    --color-surface: #ffffff;
    --font-head: "Space Grotesk", sans-serif;
    --font-body: "DM Sans", sans-serif;
    --space-xs: 0.35rem;
    --space-sm: 0.75rem;
    --space-md: 1.25rem;
    --space-lg: 2rem;
    --space-xl: 3.5rem;
    --radius-card: 50%;
    --radius-ui: 12px;
    --bka-header-h: 72px;
    --bka-page-w: 1120px;
    --bka-measure: 760px;
}

@media (max-width: 768px) {
    :root { --bka-header-h: 64px; }
}

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

html, body {
    margin: 0;
    padding: 0;
    max-width: 100%;
    overflow-x: hidden;
}

html { scroll-padding-top: var(--bka-header-h); }

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.65;
    padding-top: var(--bka-header-h);
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    opacity: 0.07;
    background-image:
        linear-gradient(rgba(0, 255, 255, 0.35) 1px, transparent 1px),
        linear-gradient(90deg, rgba(75, 0, 130, 0.35) 1px, transparent 1px);
    background-size: 28px 28px;
}

main { position: relative; z-index: 1; }

[hidden] { display: none !important; }

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

a { color: var(--color-primary); }
a:hover { color: var(--color-secondary); }

h1, h2, h3 {
    font-family: var(--font-head);
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--color-primary);
}

.bka-l-container {
    max-width: var(--bka-page-w);
    margin: 0 auto;
    padding: 0 20px;
}

.bka-l-measure {
    max-width: var(--bka-measure);
    margin-left: auto;
    margin-right: auto;
}

.bka-l-measure-wide {
    max-width: 880px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.bka-l-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

@media (max-width: 768px) {
    .bka-l-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
    .bka-l-grid { grid-template-columns: 1fr; }
}

.bka-l-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    min-height: var(--bka-header-h);
    background: var(--color-bg);
    box-shadow: 0 2px 8px rgba(75, 0, 130, 0.12);
}

.bka-l-header a,
.bka-l-header a:visited {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.92rem;
}

.bka-l-header a:hover,
.bka-l-header a.bka-is-active {
    color: var(--color-secondary);
}

.bka-l-header-row {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: var(--bka-header-h);
    gap: var(--space-sm);
}

.bka-m-logo {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.bka-m-logo img {
    width: 180px;
    height: auto;
    display: block;
}

.bka-m-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: nowrap;
}

.bka-m-nav-left { margin-right: auto; padding-right: 110px; }
.bka-m-nav-right { margin-left: auto; padding-left: 110px; }

.bka-m-burger,
.bka-m-overlay,
.bka-m-drawer { display: none; }

.bka-m-burger {
    width: 44px;
    height: 44px;
    border: 0;
    background: transparent;
    cursor: pointer;
    margin-left: auto;
    padding: 10px;
}

.bka-m-burger span {
    display: block;
    height: 2px;
    margin: 5px 0;
    background: var(--color-primary);
}

.bka-m-drawer-close {
    position: absolute;
    top: 12px;
    right: 16px;
    width: 44px;
    height: 44px;
    border: 0;
    background: transparent;
    font-size: 1.8rem;
    color: var(--color-primary);
    cursor: pointer;
}

@media (max-width: 1100px) {
    .bka-m-nav { display: none; }

    .bka-m-logo {
        position: static;
        transform: none;
        margin-right: auto;
    }

    .bka-m-burger { display: block; }

    .bka-m-overlay {
        display: block;
        position: fixed;
        inset: 0;
        z-index: 200;
        background: rgba(0, 0, 0, 0.45);
        opacity: 0;
        visibility: hidden;
        transition: opacity .25s, visibility .25s;
    }

    .bka-m-drawer {
        display: block;
        position: fixed;
        z-index: 210;
        background: var(--color-bg);
        overflow-y: auto;
        visibility: hidden;
        transition: transform .3s ease, opacity .3s ease, visibility .3s;
    }

    .bka-m-drawer a {
        display: block;
        padding: 10px 20px;
        font-size: 0.95rem;
        color: var(--color-primary);
        text-decoration: none;
        font-weight: 600;
    }

    .bka-m-drawer .bka-m-btn {
        margin: 16px 20px;
        width: calc(100% - 40px);
        box-sizing: border-box;
        text-align: center;
    }

    .bka-m-drawer-narrow {
        top: 0;
        right: 0;
        height: 100vh;
        height: 100dvh;
        width: min(75vw, 320px);
        padding: 64px 0 20px;
        transform: translateX(100%);
    }

    body.nav-open { overflow: hidden; }
    body.nav-open .bka-m-overlay { opacity: 1; visibility: visible; }
    body.nav-open .bka-m-drawer-narrow {
        transform: translateX(0);
        visibility: visible;
    }
}

@media (max-width: 768px) {
    .bka-m-logo img { width: 120px; }
}

.bka-m-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    min-height: 44px;
    padding: 0.7rem 1.35rem;
    border-radius: 8px;
    border: 1px solid var(--color-primary);
    background: transparent;
    color: var(--color-primary);
    font-family: var(--font-head);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: box-shadow .2s, background .2s, color .2s;
}

.bka-m-btn:hover {
    background: rgba(75, 0, 130, 0.06);
}

.bka-m-btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: #fff;
    border-color: transparent;
    box-shadow: 0 0 0 0 rgba(0, 255, 255, 0.55), 0 0 18px rgba(0, 255, 255, 0.35);
}

.bka-m-btn-primary:hover {
    color: #fff;
    box-shadow: 0 0 0 2px rgba(0, 255, 255, 0.7), 0 0 28px rgba(0, 255, 255, 0.55);
}

.bka-m-hero {
    background:
        radial-gradient(ellipse at 70% 10%, rgba(0, 255, 255, 0.18), transparent 45%),
        linear-gradient(160deg, #2a0a4a 0%, #4b0082 45%, #1a0a2e 100%);
    color: #f5f3ff;
    padding: var(--space-xl) 0 var(--space-lg);
}

.bka-m-hero h1,
.bka-m-hero .bka-m-hero-title { color: #ffffff; }

.bka-m-hero-kicker {
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.75rem;
    color: var(--color-accent);
    margin: 0 0 var(--space-sm);
}

.bka-m-hero-title {
    font-size: clamp(1.7rem, 4vw, 2.6rem);
    margin: 0 0 var(--space-md);
}

.bka-m-hero-text {
    color: rgba(245, 243, 255, 0.9);
    margin: 0 auto var(--space-lg);
    max-width: 40rem;
}

.bka-m-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    justify-content: center;
    margin-bottom: var(--space-lg);
}

.bka-m-hero .bka-m-btn {
    border-color: rgba(255, 255, 255, 0.45);
    color: #fff;
}

.bka-m-hero .bka-m-btn-primary {
    border-color: transparent;
}

.bka-m-hero-preview {
    margin: 0 auto;
    max-width: 720px;
}

.bka-m-hero-preview img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35), 0 0 24px rgba(0, 255, 255, 0.2);
}

@keyframes bka-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.bka-m-float {
    animation: bka-float 5s ease-in-out infinite;
}

.bka-m-section,
.bka-m-page {
    padding: var(--space-xl) 0;
}

.bka-m-section-title {
    font-size: clamp(1.35rem, 2.5vw, 1.85rem);
    margin: 0 0 var(--space-md);
}

.bka-m-req-list,
.bka-m-app-facts,
.bka-m-steps {
    padding-left: 1.2rem;
}

.bka-m-req-list li,
.bka-m-app-facts li,
.bka-m-steps li {
    margin-bottom: 0.55rem;
}

.bka-m-app {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.bka-m-app-badges {
    font-size: 0.78rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-text-light);
}

.bka-m-app-head {
    display: flex;
    gap: var(--space-md);
    align-items: center;
    margin: var(--space-md) 0;
}

.bka-m-app-icon {
    width: 96px;
    height: 96px;
    border-radius: 22%;
    object-fit: contain;
    flex-shrink: 0;
    box-shadow: 0 0 16px rgba(0, 255, 255, 0.25);
}

.bka-m-app-name {
    margin: 0 0 0.25rem;
    font-size: 1.35rem;
}

.bka-m-app-dev,
.bka-m-app-note,
.bka-m-app-checked {
    color: var(--color-text-light);
}

.bka-m-app-checked {
    font-weight: 600;
    color: var(--color-primary);
}

.bka-m-shots {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: var(--space-sm);
    align-items: center;
}

.bka-m-shots-track {
    display: flex;
    gap: var(--space-md);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding-bottom: var(--space-sm);
}

.bka-m-shots-track img {
    flex: 0 0 min(78%, 520px);
    scroll-snap-align: center;
    border-radius: 12px;
    object-fit: contain;
    max-height: 280px;
    width: auto;
    background: #12061f;
}

.bka-m-shots-nav {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-primary);
    cursor: pointer;
}

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

.bka-m-faq-q {
    width: 100%;
    text-align: left;
    background: transparent;
    border: 0;
    padding: 1rem 0;
    font-family: var(--font-head);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-primary);
    cursor: pointer;
}

.bka-m-faq-a {
    padding: 0 0 1rem;
    color: var(--color-text-light);
}

.bka-m-cta {
    background: linear-gradient(135deg, #1a0a2e, #4b0082);
    color: #fff;
    padding: var(--space-xl) 0;
    text-align: center;
}

.bka-m-cta .bka-m-section-title { color: #fff; }
.bka-m-cta p { color: rgba(255, 255, 255, 0.88); }

.bka-m-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.bka-m-card-band {
    height: 88px;
}

.bka-m-card-band-a {
    background: linear-gradient(135deg, #4b0082, #00ffff);
}

.bka-m-card-band-b {
    background: linear-gradient(135deg, #6a0dad, #4b0082);
}

.bka-m-card-band-c {
    background: linear-gradient(135deg, #1a0a2e, #00ffff);
}

.bka-m-card h2 {
    font-size: 1.15rem;
    margin: var(--space-md) var(--space-md) var(--space-sm);
}

.bka-m-card h2 a { text-decoration: none; }

.bka-m-card p {
    margin: 0 var(--space-md) var(--space-md);
    color: var(--color-text-light);
    flex: 1;
}

.bka-m-page h1 { margin-top: 0; }

.bka-m-lede {
    font-size: 1.1rem;
    color: var(--color-text-light);
}

.bka-m-crumbs {
    font-size: 0.9rem;
    margin-bottom: var(--space-md);
    color: var(--color-text-light);
}

.bka-m-crumbs a { text-decoration: none; }

.bka-m-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-md);
    margin: var(--space-lg) 0;
}

.bka-m-gallery figure {
    margin: 0;
    background: #12061f;
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 160px;
}

.bka-m-gallery img {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 280px;
    object-fit: contain;
}

.bka-m-log-entry {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: var(--space-md) var(--space-lg);
    margin: var(--space-lg) 0;
}

.bka-m-contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

@media (max-width: 768px) {
    .bka-m-contact-grid { grid-template-columns: 1fr; }
}

.bka-m-form label {
    display: block;
    margin: 0.75rem 0 0.35rem;
    font-weight: 600;
}

.bka-m-form input,
.bka-m-form textarea {
    width: 100%;
    padding: 0.7rem 0.85rem;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font: inherit;
    background: var(--color-surface);
}

.bka-m-form-status {
    margin: var(--space-sm) 0;
    color: var(--color-secondary);
    font-weight: 600;
}

.bka-l-footer {
    position: relative;
    z-index: 1;
    background: #12061f;
    color: rgba(245, 243, 255, 0.88);
    padding: var(--space-xl) 0 var(--space-lg);
    margin-top: var(--space-lg);
}

.bka-l-footer a { color: var(--color-accent); text-decoration: none; }
.bka-l-footer a:hover { text-decoration: underline; }

.bka-l-footer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

@media (max-width: 768px) {
    .bka-l-footer-grid { grid-template-columns: 1fr; }
}

.bka-m-footer-label {
    font-family: var(--font-head);
    color: #fff;
    font-weight: 700;
    margin: 0 0 var(--space-sm);
}

.bka-m-footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.bka-m-footer-col li { margin-bottom: 0.4rem; }

.bka-m-footer-link {
    background: none;
    border: 0;
    padding: 0;
    color: var(--color-accent);
    font: inherit;
    cursor: pointer;
    text-decoration: underline;
}

.bka-m-footer-legal,
.bka-m-disclaimer,
.bka-m-copy {
    font-size: 0.9rem;
    color: rgba(245, 243, 255, 0.7);
}

.bka-m-cookie {
    display: none;
}

.bka-m-cookie:not([hidden]) {
    display: flex;
    position: fixed;
    z-index: 110;
    gap: 12px;
    align-items: center;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    max-width: calc(100% - 32px);
    border-radius: 999px;
    background: #1a0a2e;
    color: #fff;
    padding: 10px 14px 10px 20px;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35), 0 0 18px rgba(0, 255, 255, 0.25);
}

.bka-m-cookie p {
    margin: 0;
    font-size: 0.9rem;
}

.bka-m-cookie a { color: var(--color-accent); }

.bka-m-cookie-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

.bka-m-cookie .bka-m-btn {
    min-height: 44px;
    border-radius: 999px;
    padding-inline: 1.1rem;
}

@media (max-width: 600px) {
    .bka-m-cookie:not([hidden]) {
        left: 12px;
        right: 12px;
        transform: none;
        border-radius: 18px;
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .bka-m-app-icon {
        width: 64px;
        height: 64px;
    }

    .bka-m-shots {
        grid-template-columns: 1fr;
    }

    .bka-m-shots-nav {
        display: none;
    }
}