/* ================================================================
   Download — Remote Agent landing + platform cards
   ================================================================ */

.box:has(.download-page) {
    max-width: 1080px;
    padding-top: 0;
}

.download-page {
    display: flex;
    flex-direction: column;
    gap: 48px;
}

/* --- Hero logo --- */
.download-hero__visual {
    background:
        radial-gradient(circle at 35% 30%, color-mix(in srgb, var(--rustify-secondary) 32%, transparent), transparent 58%),
        color-mix(in srgb, var(--text-on-dark) 8%, transparent);
}

.download-hero__logo {
    position: relative;
    z-index: 1;
    width: clamp(96px, 18vw, 128px);
    height: clamp(96px, 18vw, 128px);
    object-fit: contain;
    filter: drop-shadow(0 12px 28px rgba(0, 0, 0, 0.28));
}

.rustify-btn--ghost {
    background: color-mix(in srgb, var(--text-on-dark) 12%, transparent);
    color: var(--text-on-dark);
    border: 1px solid color-mix(in srgb, var(--text-on-dark) 28%, transparent);
}

.rustify-btn--ghost:hover {
    transform: translateY(-2px);
    background: color-mix(in srgb, var(--text-on-dark) 18%, transparent);
}

/* --- How it works --- */
.download-how {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: calc(var(--radius) + 2px);
    padding: clamp(22px, 3vw, 32px);
    box-shadow: var(--shadow-sm);
}

.download-steps {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 16px;
}

.download-step {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 16px;
    align-items: start;
    padding: 16px 18px;
    border-radius: var(--radius);
    background: color-mix(in srgb, var(--rustify-primary) 4%, var(--surface));
    border: 1px solid color-mix(in srgb, var(--rustify-primary) 10%, var(--border));
}

.download-step__num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    font-size: 0.95rem;
    font-weight: 800;
    color: var(--text-on-dark);
    background: var(--rustify-gradient-primary);
    box-shadow: 0 4px 12px color-mix(in srgb, var(--rustify-primary) 20%, transparent);
}

.download-step__title {
    margin: 0 0 4px;
    font-size: 0.98rem;
    font-weight: 800;
    color: var(--text);
}

.download-step__desc {
    margin: 0;
    font-size: 0.86rem;
    line-height: 1.65;
    color: var(--text-muted);
}

/* --- Download section --- */
.download-get {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: calc(var(--radius) + 2px);
    padding: clamp(22px, 3vw, 32px);
    box-shadow: var(--shadow-sm);
}

.download-get__head {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 12px 20px;
    margin-bottom: 22px;
}

.download-version {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.download-version__badge {
    padding: 6px 12px;
    border-radius: 99px;
    background: var(--accent-light);
    color: var(--primary);
    font-weight: 600;
}

.download-version__badge strong {
    font-weight: 800;
}

.download-version__date {
    align-self: center;
}

/* --- Platform grid --- */
.platform-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.os-column {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    min-height: 180px;
    cursor: pointer;
    transition: all 0.35s cubic-bezier(0.23, 1, 0.32, 1);
}

.os-column.active:hover {
    border-color: var(--accent);
    transform: translateY(-6px);
    box-shadow: 0 14px 32px color-mix(in srgb, var(--rustify-secondary) 12%, transparent);
}

.os-column.disabled {
    opacity: 0.45;
    background: color-mix(in srgb, var(--bg) 80%, var(--surface));
    border-style: dashed;
    cursor: not-allowed;
}

.os-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.os-logo {
    font-size: 1.4rem;
    line-height: 1;
}

.os-header h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--primary);
    margin: 0;
}

.spec {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 18px;
}

.action-area {
    margin-top: auto;
    background: var(--accent);
    color: var(--text-on-dark);
    padding: 10px 14px;
    border-radius: 10px;
    text-align: center;
    position: relative;
    overflow: hidden;
    font-weight: 700;
    font-size: 0.88rem;
    transition: opacity var(--transition);
    user-select: none;
}

.action-area:hover {
    opacity: 0.9;
}

.status-badge {
    margin-top: auto;
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
    font-weight: 600;
}

.spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 18px;
    height: 18px;
    margin: -9px;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-top-color: var(--text-on-dark);
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.3s;
}

.os-column.downloading .btn-label {
    opacity: 0;
}

.os-column.downloading .spinner {
    opacity: 1;
    animation: download-spin 0.75s linear infinite;
}

@keyframes download-spin {
    to { transform: rotate(360deg); }
}

/* --- Requirements --- */
.download-req-list {
    margin: 10px 0 0;
    padding-left: 1.2rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.8;
}

.download-req-list li::marker {
    color: var(--primary);
}

.download-footer-actions {
    margin-top: 8px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.footer-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

/* --- Responsive --- */
@media (max-width: 820px) {
    .download-hero__inner {
        grid-template-columns: 1fr;
    }

    .download-hero__visual {
        order: -1;
        min-height: 140px;
    }
}

@media (max-width: 700px) {
    .platform-container {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 640px) {
    .download-page {
        gap: 36px;
    }

    .rustify-hero__actions {
        flex-direction: column;
    }

    .rustify-btn {
        width: 100%;
    }

    .platform-container {
        grid-template-columns: 1fr;
    }

    .download-get__head {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (prefers-reduced-motion: reduce) {
    .os-column.active:hover {
        transform: none;
    }
}