/* Download page: shared controls and setup cards for every platform. */
.download-hero, .download-platforms { font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
.download-platforms {
    --dl-surface: #fff;
    --dl-soft: #f8fafc;
    --dl-border: #e2e8f0;
    --dl-text: #1e293b;
    --dl-muted: #64748b;
    --dl-accent: #4f46e5;
    --dl-selected: #eef2ff;
    padding: 2rem 0 4.5rem;
    color: var(--dl-text);
}
.dark .download-platforms {
    --dl-surface: #0f172a;
    --dl-soft: #172033;
    --dl-border: #2b384f;
    --dl-text: #e2e8f0;
    --dl-muted: #a3b1c6;
    --dl-accent: #a5b4fc;
    --dl-selected: #222b4a;
}
.download-platforms *, .download-platforms *::before { box-sizing: border-box; }
.download-platforms [hidden] { display: none !important; }
.download-platforms .download-container { max-width: 960px; padding-inline: 1.25rem; }
.download-hero {
    position: relative;
    overflow: hidden;
    padding: 7.5rem 1rem 3.5rem;
    background: linear-gradient(135deg, #f8faff, #eef2ff 55%, #f8faff);
}
.dark .download-hero { background: linear-gradient(135deg, #1e293b, #1a2340 55%, #1e293b); }
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    margin-bottom: 1rem;
    padding: .35rem .85rem;
    border: 1px solid #6366f130;
    border-radius: 999px;
    background: #6366f10d;
    color: #4f46e5;
    font-size: .75rem;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
}
.dark .hero-badge { color: #a5b4fc; background: #6366f11a; }
.download-title { margin: 0; font-size: clamp(2rem, 5vw, 2.75rem); font-weight: 800; line-height: 1.2; letter-spacing: -.035em; color: #0f172a; }
.dark .download-title { color: #f1f5f9; }
.download-intro { margin: 1rem auto 0; font-size: 1rem; line-height: 1.75; color: #64748b; }
.dark .download-intro { color: #a3b1c6; }
.platform-tabs {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: .65rem;
    margin: 0 0 1.5rem;
    padding: 0;
    list-style: none;
}
.platform-tabs > li { min-width: 0; }
.tab-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: .65rem;
    width: 100%;
    height: 92px;
    padding: .8rem .5rem;
    border: 1px solid var(--dl-border);
    border-radius: .8rem;
    background: var(--dl-surface);
    color: var(--dl-muted);
    font-size: .875rem;
    font-weight: 700;
    line-height: 1.3;
    transition: background .15s, border-color .15s, color .15s;
}
.tab-btn img { width: 25px; height: 25px; object-fit: contain; }
.tab-btn:hover { background: var(--dl-soft); border-color: #a5b4fc; color: var(--dl-text); }
.tab-btn.active { background: var(--dl-selected); border-color: #818cf8; color: var(--dl-accent); box-shadow: 0 0 0 1px #818cf830; }
.download-platforms :is(button, a, select, summary):focus-visible { outline: 3px solid #818cf8; outline-offset: 3px; }
.tab-content:focus-visible { outline: 2px solid #818cf8; outline-offset: 5px; border-radius: 1rem; }
.platform-mobile-select { display: none; margin-bottom: 1rem; }
.platform-select-caption { display: block; margin: 0 0 .55rem .25rem; font-size: .8rem; font-weight: 600; color: var(--dl-muted); }
.platform-mobile-select .lt-select__btn {
    min-height: 62px;
    padding: .75rem 1rem;
    border-radius: 1.1rem;
    background: linear-gradient(180deg, var(--dl-surface), var(--dl-soft));
    box-shadow: 0 2px 5px #0f172a04, inset 0 1px 0 #ffffff40;
    font-size: .95rem;
    font-weight: 600;
    transition: border-color .18s, box-shadow .18s;
    -webkit-tap-highlight-color: transparent;
}
.platform-mobile-select .lt-select__btn[aria-expanded="true"] { border-color: #a5b4fc; box-shadow: 0 0 0 3px #818cf81a; }
.platform-mobile-select .lt-select__btn-left { gap: .8rem; }
.platform-mobile-select .lt-select__icon { width: 28px; height: 28px; }
.platform-mobile-select .lt-select__chev { width: 28px; height: 28px; padding: .2rem; border-radius: 50%; background: var(--dl-selected); color: var(--dl-accent); opacity: 1; }
.platform-mobile-select .lt-select__panel {
    top: calc(100% + .6rem);
    padding: .4rem;
    border-radius: 1.25rem;
    border-color: #e2e8f0cc;
    background: rgb(255 255 255 / .94);
    -webkit-backdrop-filter: blur(24px) saturate(1.5);
    backdrop-filter: blur(24px) saturate(1.5);
    box-shadow: 0 16px 48px #0f172a24, 0 4px 12px #0f172a0a, inset 0 1px 0 #ffffff80;
    transform-origin: top center;
    animation: platformPickerIn .18s ease-out;
}
.platform-mobile-select.opens-above .lt-select__panel { top: auto; bottom: calc(100% - 1.5rem); transform-origin: bottom center; }
.platform-mobile-select .lt-select__list { scrollbar-width: thin; scrollbar-color: var(--dl-border) transparent; border-radius: .85rem; }
.platform-mobile-select .lt-option { position: relative; min-height: 52px; gap: .75rem; padding: .6rem .8rem; border-radius: .85rem; font-size: .9rem; -webkit-tap-highlight-color: transparent; }
.platform-mobile-select .lt-option + .lt-option { margin-top: .15rem; }
.platform-mobile-select .lt-option__icon { width: 32px; height: 32px; padding: .25rem; border-radius: .6rem; background: var(--dl-surface); }
.platform-mobile-select .lt-option__text { flex: 1; min-width: 0; line-height: 1.4; font-weight: 500; }
.platform-mobile-select .lt-option::after { content: ""; flex: 0 0 7px; width: 7px; height: 12px; margin: 0 .35rem .2rem .2rem; border: solid transparent; border-width: 0 2px 2px 0; transform: rotate(45deg); }
.platform-mobile-select .lt-option[aria-selected="true"]::after { border-color: var(--dl-accent); }
.platform-mobile-select .lt-option[aria-selected="true"] .lt-option__text { font-weight: 700; }
.dark .platform-mobile-select .lt-select__panel { background: rgb(23 32 51 / .96); border-color: #334155cc; box-shadow: 0 16px 48px #00000050, inset 0 1px 0 #ffffff08; }
@keyframes platformPickerIn { from { opacity: 0; transform: translateY(-4px) scale(.98); } to { opacity: 1; transform: translateY(0) scale(1); } }
.download-card {
    min-width: 0;
    padding: 2rem;
    border: 1px solid var(--dl-border);
    border-radius: 1rem;
    background: var(--dl-surface);
    box-shadow: 0 6px 24px #0f172a05;
    counter-reset: setup-step;
}
.download-card-heading { margin-bottom: 1.5rem; }
.download-card-heading h2 { margin: 0; font-size: 1.3rem; font-weight: 800; line-height: 1.4; letter-spacing: -.02em; }
.download-card-heading p { margin: .45rem 0 0; color: var(--dl-muted); font-size: .925rem; line-height: 1.65; }
.download-heading-row { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: .65rem; }
.download-tag { display: inline-flex; align-items: center; padding: .25rem .6rem; border-radius: 999px; background: var(--dl-selected); color: var(--dl-accent); font-size: .7rem; font-weight: 700; white-space: nowrap; }
.download-tag--experimental { background: #fef3c7; color: #92400e; }
.dark .download-tag--experimental { background: #422f16; color: #fcd34d; }
.download-row { display: flex; align-items: center; flex-wrap: wrap; gap: .75rem; }
.download-row .lt-select { flex: 1 1 300px; max-width: 410px; }
.download-btn-mini {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: .65rem 1.4rem;
    border: 1px solid transparent;
    border-radius: .65rem;
    background: #4f46e5;
    color: #fff;
    font-size: .9rem;
    font-weight: 700;
    line-height: 1.4;
    text-decoration: none;
    white-space: nowrap;
    transition: background .15s, box-shadow .15s;
}
.download-btn-mini:hover { background: #4338ca; color: #fff; box-shadow: 0 4px 12px #4f46e526; }
.download-file { display: flex; align-items: center; gap: .75rem; flex: 1 1 300px; max-width: 410px; min-height: 46px; font-size: .9rem; font-weight: 700; }
.download-file img { flex-shrink: 0; }
.download-file-type { display: block; margin-top: .1rem; color: var(--dl-muted); font-size: .75rem; font-weight: 500; }
.download-card .download-hint { margin: .7rem 0 0; color: var(--dl-muted); font-size: .78rem; line-height: 1.7; }
.download-note { margin: 1.5rem 0; padding: 1rem 1.15rem; border: 1px solid var(--dl-border); border-radius: .65rem; background: var(--dl-soft); font-size: .85rem; line-height: 1.75; color: var(--dl-muted); }
.download-note strong { display: block; margin-bottom: .15rem; color: var(--dl-text); font-weight: 700; }
.download-steps { margin: 1.75rem 0; padding: 0; list-style: none; }
.download-steps > li, .download-card ol.list-decimal > li { position: relative; padding-left: 2.25rem; margin: 0 0 1.75rem; list-style: none; }
.download-steps > li::before, .download-card ol.list-decimal > li::before {
    counter-increment: setup-step;
    content: counter(setup-step);
    position: absolute;
    left: 0;
    top: .05rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    background: var(--dl-selected);
    color: var(--dl-accent);
    font-size: .75rem;
    font-weight: 800;
}
.download-steps h3, .download-card ol b { margin: 0 0 .35rem; font-size: .95rem; font-weight: 700; line-height: 1.6; color: var(--dl-text); }
.download-steps p { margin: .4rem 0; color: var(--dl-muted); font-size: .875rem; line-height: 1.75; }
.download-card :is(.text-slate-500, .text-slate-400) { color: var(--dl-muted); line-height: 1.75; }
.download-card :is(p, .download-hint, .download-note) code { font-size: .9em; overflow-wrap: anywhere; }
.download-setup-option { margin-top: 1rem; }
.download-setup-option + .download-setup-option { padding-top: 1rem; border-top: 1px solid var(--dl-border); }
.download-setup-option h4 { margin: 0 0 .35rem; font-size: .85rem; font-weight: 800; color: var(--dl-text); }
.download-docs { display: flex; flex-wrap: wrap; align-items: baseline; gap: .4rem 1rem; padding-top: 1.2rem; border-top: 1px solid var(--dl-border); font-size: .85rem; }
.download-docs > span:first-child { font-weight: 700; }
.download-docs a, .download-card a.text-indigo-600 { color: var(--dl-accent); }
.download-docs a:hover { text-decoration: underline; text-underline-offset: 3px; }
.command-block { display: flex; align-items: flex-start; gap: .5rem; min-width: 0; margin: .65rem 0; padding: .75rem; border: 1px solid var(--dl-border); border-radius: .6rem; background: var(--dl-soft); }
.command-block code { display: block; flex: 1 1 0; min-width: 0; overflow-x: auto; padding: .25rem 0; background: none; color: var(--dl-text); font: .8rem/1.8 'JetBrains Mono', Consolas, monospace; white-space: pre; scrollbar-width: thin; }
.copy-btn { display: inline-flex; align-items: center; justify-content: center; flex: 0 0 34px; width: 34px; height: 34px; padding: 0; border: 1px solid transparent; border-radius: .4rem; background: transparent; color: var(--dl-accent); cursor: pointer; }
.copy-btn:hover { background: var(--dl-selected); border-color: var(--dl-border); }
.copy-btn.copied { color: #15803d; background: #dcfce7; }
.copy-btn.copy-failed { color: #b45309; background: #fef3c7; }
.dark .copy-btn.copied { color: #86efac; background: #14532d; }
.copy-btn svg { pointer-events: none; }
.lt-select { position: relative; min-width: 0; max-width: 100%; }
.lt-select__btn { display: flex; align-items: center; justify-content: space-between; gap: .65rem; width: 100%; min-height: 46px; padding: .65rem .85rem; border: 1px solid var(--dl-border); border-radius: .65rem; background: var(--dl-surface); color: var(--dl-text); font-size: .875rem; font-weight: 700; text-align: left; }
.lt-select__btn:hover { border-color: #a5b4fc; }
.lt-select__btn-left { display: flex; align-items: center; gap: .6rem; min-width: 0; }
.lt-select__icon, .lt-option__icon { width: 20px; height: 20px; flex-shrink: 0; object-fit: contain; }
.lt-select__label { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.lt-select__chev { width: 18px; height: 18px; flex-shrink: 0; opacity: .7; transition: transform .15s; }
.lt-select__btn[aria-expanded="true"] .lt-select__chev { transform: rotate(180deg); }
.lt-select__panel { position: absolute; top: calc(100% + .4rem); left: 0; right: 0; z-index: 50; padding: .3rem; border: 1px solid var(--dl-border); border-radius: .75rem; background: var(--dl-surface); box-shadow: 0 12px 32px #0f172a26; }
.lt-select__list { max-height: min(320px, 50vh); overflow-y: auto; overscroll-behavior: contain; margin: 0; padding: 0; outline: none; list-style: none; }
.lt-option { display: flex; align-items: center; gap: .65rem; min-height: 44px; padding: .65rem .7rem; border-radius: .4rem; cursor: pointer; font-size: .85rem; }
.lt-option:hover, .lt-option.is-focused { background: var(--dl-soft); outline: 1px solid var(--dl-border); outline-offset: -1px; }
.lt-option[aria-selected="true"] { background: var(--dl-selected); color: var(--dl-accent); }
.lt-option__text { font-weight: 600; }
.lt-option-group { padding: .7rem .7rem .3rem; font-size: .65rem; font-weight: 800; color: var(--dl-muted); text-transform: uppercase; letter-spacing: .075em; }
.download-options-sheet {
    position: fixed;
    inset: auto 0 0;
    width: 100%;
    max-width: none;
    max-height: calc(100dvh - 2rem);
    margin: 0;
    padding: .5rem .75rem max(.75rem, env(safe-area-inset-bottom));
    border: 1px solid var(--dl-border);
    border-bottom: 0;
    border-radius: 1.25rem 1.25rem 0 0;
    background: var(--dl-surface);
    color: var(--dl-text);
    box-shadow: 0 -12px 48px #02061726;
    overscroll-behavior: contain;
}
.download-options-sheet[open] { animation: downloadSheetIn .24s cubic-bezier(.2, .8, .2, 1); }
.download-options-sheet::backdrop { background: rgb(2 6 23 / .45); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); }
.download-options-sheet::before { content: ""; display: block; width: 36px; height: 4px; margin: .1rem auto .5rem; border-radius: 999px; background: var(--dl-border); }
.download-sheet-heading { display: flex; align-items: center; justify-content: space-between; gap: .75rem; padding: 0 .35rem .5rem; }
.download-sheet-heading h3 { margin: 0; font-size: .875rem; font-weight: 700; }
.download-sheet-close { display: flex; align-items: center; justify-content: center; flex: 0 0 44px; height: 44px; border: 0; border-radius: 50%; background: var(--dl-soft); color: var(--dl-muted); }
.download-options-sheet .lt-select__panel { position: static; margin: 0; padding: 0; border: 0; border-radius: 0; box-shadow: none; }
.download-options-sheet .lt-select__list { max-height: min(55vh, 460px); max-height: min(55dvh, 460px); padding: .2rem; scrollbar-width: thin; }
.download-options-sheet .lt-option { min-height: 54px; padding: .85rem .75rem; gap: .8rem; border-radius: .65rem; }
.download-options-sheet .lt-option__icon { width: 24px; height: 24px; }
@keyframes downloadSheetIn { from { transform: translateY(100%); } to { transform: translateY(0); } }
.download-platforms .platform-packages { margin-bottom: 0; border-color: var(--dl-border); background: var(--dl-surface); color: var(--dl-text); }
.download-platforms .platform-packages p { color: var(--dl-muted); font-size: .875rem; }
.download-platforms .platform-packages h2 { font-size: 1.15rem; }
.download-platforms .platform-package-list { grid-template-columns: 1fr; }
.download-platforms .platform-package-list > li { border-color: var(--dl-border); background: var(--dl-soft); }
.download-platforms .platform-package-download { font-size: .875rem; color: var(--dl-accent); }
.download-platforms .platform-packages pre { background: var(--dl-soft); border: 1px solid var(--dl-border); color: var(--dl-text); }
@media (max-width: 767px) {
    .platform-tabs { display: none; }
    .platform-mobile-select { display: block; }
    .download-card { padding: 1.25rem; }
    .download-platforms { padding-top: 1.25rem; }
    .download-hero { padding-top: 7rem; padding-bottom: 3rem; }
    .download-steps > li, .download-card ol.list-decimal > li { padding-left: 0; }
    .download-steps > li > h3, .download-card ol.list-decimal > li > b { display: block; min-height: 1.5rem; margin-left: 2.25rem; }
}
@media (max-width: 479px) {
    .download-platforms .download-container { padding-inline: 1rem; }
    .download-row { align-items: stretch; }
    .download-row .lt-select, .download-row .download-file, .download-row .download-btn-mini { flex-basis: 100%; max-width: 100%; }
    .download-card { padding: 1rem; }
    .download-card-heading h2 { font-size: 1.15rem; }
    .command-block { padding: .5rem; }
    .download-docs { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
    .download-platforms *, .download-hero * { animation: none !important; transition: none !important; }
}