/* ═══════════════════════════════════════════════════
   SYNC2SYS: video block (homepage band + scenario popup)
   All selectors live in the "vb" namespace so nothing
   collides with the existing site markup.
   Colours, fonts and spacing come from style.css :root.
   ═══════════════════════════════════════════════════ */

/* ─── Band on the homepage ─── */
.vb {
    position: relative;
    overflow: hidden;
    padding: var(--space-5xl) var(--space-lg);
    background: var(--color-bg-dark);
    color: var(--color-text-white);
    font-family: var(--font-sans);
}

.vb__grid {
    position: absolute;
    inset: 0;
    opacity: 0.6;
    pointer-events: none;
    background-image:
        linear-gradient(var(--color-border-dark) 1px, transparent 1px),
        linear-gradient(90deg, var(--color-border-dark) 1px, transparent 1px);
    background-size: 60px 60px;
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.vb__glow {
    position: absolute;
    top: -30%;
    left: 50%;
    width: 700px;
    height: 700px;
    transform: translateX(-50%);
    pointer-events: none;
    background: radial-gradient(circle, rgba(34, 197, 94, 0.1) 0%, transparent 70%);
}

.vb__inner {
    position: relative;
    z-index: 2;
    max-width: 1100px;
    margin: 0 auto;
    text-align: center;
}

.vb__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
    font-size: 0.6875rem;
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent);
}

.vb__eyebrow::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: var(--radius-full);
    background: var(--color-accent);
    box-shadow: 0 0 10px var(--color-accent);
}

.vb__title {
    margin-bottom: var(--space-md);
    font-size: clamp(1.75rem, 4vw, 3rem);
    font-weight: var(--font-weight-extrabold);
    line-height: 1.1;
    letter-spacing: -0.025em;
}

.vb__accent {
    color: var(--color-accent);
}

.vb__sub {
    max-width: 620px;
    margin: 0 auto var(--space-2xl);
    font-size: clamp(1rem, 1.6vw, 1.125rem);
    color: var(--color-text-white-muted);
}

/* ─── Three scenario teasers inside the band ─── */
.vb__previews {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 14px;
    max-width: 900px;
    margin: 0 auto var(--space-2xl);
}

.vb-preview {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: var(--space-md) 18px;
    text-align: left;
    background: var(--color-bg-dark-card);
    border: 1px solid var(--color-border-dark);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-white-muted);
    cursor: pointer;
    transition: border-color var(--transition-base), background var(--transition-base), color var(--transition-base);
}

/* Превью кликабельны: ведут сразу на свой ролик */
.vb-preview:hover,
.vb-preview:focus-visible {
    background: var(--color-bg-dark-card-hover);
    border-color: var(--color-accent);
    color: var(--color-text-white);
    outline: none;
}

.vb-preview:focus-visible {
    box-shadow: 0 0 0 3px var(--color-accent-glow-strong);
}

.vb-preview svg {
    flex: 0 0 auto;
    color: var(--color-accent);
}

/* ─── Buttons (namespaced, the site .btn is untouched) ─── */
.vb-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: var(--space-md) var(--space-xl);
    font-family: inherit;
    font-size: 1.0625rem;
    font-weight: var(--font-weight-semibold);
    line-height: 1.4;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.vb-btn--primary {
    background: var(--color-accent);
    color: var(--color-bg-dark);
}

.vb-btn--primary:hover {
    background: var(--color-accent-hover);
    box-shadow: var(--shadow-green);
    transform: translateY(-1px);
}

.vb-btn--ghost {
    background: transparent;
    color: var(--color-text-white);
    border: 1px solid var(--color-border-dark);
}

.vb-btn--ghost:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
}

.vb-btn:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
}

.vb-btn__arrow {
    transition: transform var(--transition-fast);
}

.vb-btn:hover .vb-btn__arrow {
    transform: translateX(4px);
}

.vb__note {
    margin-top: var(--space-md);
    font-size: 0.8125rem;
    color: var(--color-text-white-subtle);
}

/* ─── Popup ───
   margin:auto is required: the global reset zeroes margins
   and the dialog would otherwise stick to the top-left corner. */
.vb-dialog {
    width: 100%;
    max-width: min(880px, 94vw);
    margin: auto;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--color-text-white);
    font-family: var(--font-sans);
}

.vb-dialog::backdrop {
    background: rgba(0, 0, 0, 0.78);
    backdrop-filter: blur(4px);
}

.vb-modal {
    position: relative;
    overflow: hidden;
    padding: var(--space-2xl) 40px;
    background: var(--color-bg-dark);
    border: 1px solid var(--color-border-dark);
    border-radius: var(--radius-lg);
    text-align: left;
}

.vb-modal__glow {
    position: absolute;
    top: -40%;
    left: 50%;
    width: 500px;
    height: 500px;
    transform: translateX(-50%);
    pointer-events: none;
    background: radial-gradient(circle, rgba(34, 197, 94, 0.08) 0%, transparent 70%);
}

.vb-modal__inner {
    position: relative;
    z-index: 2;
}

.vb-modal__title {
    margin-bottom: 6px;
    padding-right: 40px;
    font-size: clamp(1.25rem, 2.4vw, 1.625rem);
    font-weight: var(--font-weight-extrabold);
    letter-spacing: -0.02em;
    line-height: 1.25;
}

.vb-modal__sub {
    margin-bottom: 28px;
    font-size: 0.9375rem;
    color: var(--color-text-white-muted);
}

.vb-close {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    z-index: 3;
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    background: transparent;
    border: 1px solid var(--color-border-dark);
    border-radius: var(--radius-full);
    color: var(--color-text-white-subtle);
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.vb-close:hover {
    color: var(--color-text-white);
    border-color: rgba(255, 255, 255, 0.25);
}

.vb-close:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    color: var(--color-text-white);
}

/* ─── Scenario picker ─── */
.vb-opts {
    display: grid;
    gap: 12px;
}

.vb-opt {
    display: flex;
    align-items: center;
    gap: 18px;
    width: 100%;
    padding: var(--space-lg) 22px;
    text-align: left;
    background: var(--color-bg-dark-card);
    border: 1px solid var(--color-border-dark);
    border-radius: var(--radius-md);
    font-family: inherit;
    color: var(--color-text-white);
    cursor: pointer;
    transition: all var(--transition-base);
}

.vb-opt:hover,
.vb-opt:focus-visible {
    background: var(--color-bg-dark-card-hover);
    border-color: rgba(34, 197, 94, 0.4);
    box-shadow: var(--shadow-green);
}

.vb-opt:focus-visible {
    outline: none;
}

.vb-opt__icon {
    flex: 0 0 auto;
    display: grid;
    place-items: center;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.14), rgba(34, 197, 94, 0.04));
    border: 1px solid rgba(34, 197, 94, 0.2);
    color: var(--color-accent);
}

.vb-opt__body {
    flex: 1;
    min-width: 0;
}

.vb-opt__title {
    display: block;
    font-size: 1.0625rem;
    font-weight: var(--font-weight-semibold);
    line-height: 1.3;
    letter-spacing: -0.01em;
}

.vb-opt__meta {
    display: block;
    margin-top: var(--space-xs);
    font-size: 0.8125rem;
    color: var(--color-text-white-subtle);
}

.vb-opt__arrow {
    flex: 0 0 auto;
    color: var(--color-text-white-subtle);
    transition: all var(--transition-fast);
}

.vb-opt:hover .vb-opt__arrow {
    color: var(--color-accent);
    transform: translateX(4px);
}

/* ─── Player screen ─── */
.vb-view-video {
    display: none;
}

.vb-view-video.is-on {
    display: block;
}

.vb-view-opts.is-off {
    display: none;
}

.vb-back {
    display: inline-flex;
    gap: 6px;
    margin-bottom: var(--space-md);
    padding: 0;
    background: transparent;
    border: none;
    font-family: inherit;
    font-size: 0.875rem;
    color: var(--color-text-white-subtle);
    cursor: pointer;
}

.vb-back:hover {
    color: var(--color-text-white);
}

.vb-back:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
}

.vb-stage {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    background: #000;
    border: 1px solid var(--color-border-dark);
    border-radius: var(--radius-md);
}

.vb-stage__video {
    display: block;
    width: 100%;
    height: 100%;
}

/* Placeholder shown until the file is on the server */
.vb-ph {
    position: absolute;
    inset: 0;
    display: grid;
    place-content: center;
    gap: 10px;
    padding: var(--space-lg);
    text-align: center;
    background:
        radial-gradient(circle at 50% 40%, rgba(34, 197, 94, 0.07), transparent 60%),
        var(--color-bg-dark-card);
}

.vb-ph__title {
    font-size: 1.0625rem;
    font-weight: var(--font-weight-semibold);
}

.vb-ph__text {
    font-size: 0.8125rem;
    color: var(--color-text-white-subtle);
}

.vb-after {
    display: none;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    margin-top: var(--space-lg);
}

.vb-after.is-on {
    display: flex;
}

.vb-note {
    margin-top: 14px;
    font-size: 0.8125rem;
    color: var(--color-text-white-subtle);
}

.vb-note b {
    font-weight: var(--font-weight-medium);
    color: var(--color-text-white-muted);
}

/* ─── Mobile ─── */
@media (max-width: 600px) {
    .vb {
        padding: var(--space-3xl) var(--space-md);
    }

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

    .vb-modal {
        padding: 28px var(--space-lg);
    }

    .vb-opt {
        padding: var(--space-md);
        gap: 14px;
    }

    .vb-opt__icon {
        width: 40px;
        height: 40px;
    }

    .vb-opt__title {
        font-size: 1rem;
    }

    .vb-btn {
        width: 100%;
    }
}