/* =====================================================================
   Miles Hub — miles.css: My Miles page (/miles), the "Update balance" paste
   modal, and the Help & tutorials page (/help). Tokens and shared components
   come from base.css; everything here uses its variables (light + dark).
   ===================================================================== */

/* ---------- My Miles page ---------- */
.miles-page { padding-bottom: 2.5rem; }
.miles-head h1 { display: flex; align-items: center; gap: .5rem; }
.miles-head h1 .icon { color: var(--primary); }
.miles-head p { margin: .25rem 0 0; max-width: 60ch; }
.miles-tabs { margin: .25rem 0 1.25rem; overflow-x: auto; scrollbar-width: none; }
.miles-tabs::-webkit-scrollbar { display: none; }
.miles-tabs .tab-btn { white-space: nowrap; }
.miles-panel { animation: miles-fade .25s var(--ease); }
@keyframes miles-fade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

/* summary tiles */
.miles-summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: .9rem; margin-bottom: 1.25rem; }
.miles-tile { position: relative; overflow: hidden; transition: transform .25s var(--ease), box-shadow .25s var(--ease); }
.miles-tile:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.miles-tile-ic { position: absolute; right: .9rem; top: .9rem; width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; background: var(--primary-soft); color: var(--primary); }
.miles-tile.warn .miles-tile-ic { background: var(--warn-bg); color: var(--warn); }
.miles-alerts:not(:empty) { margin-bottom: 1rem; }
.miles-alerts .alert .icon { flex: none; margin-top: .15rem; }

/* program cards */
.miles-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1rem; }
.miles-card { position: relative; padding: 1.1rem 1.1rem 1rem; display: flex; flex-direction: column; gap: .6rem; }
.miles-card::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; border-radius: var(--radius) var(--radius) 0 0; background: linear-gradient(90deg, var(--primary), var(--primary-2)); opacity: 0; transition: opacity .25s; }
.miles-card:hover::before { opacity: 1; }
.mc-head { display: flex; align-items: center; gap: .75rem; }
.mc-head .logo-wrap { transition: transform .25s var(--ease); }
.miles-card:hover .mc-head .logo-wrap { transform: scale(1.06) rotate(-3deg); }
.mc-titles { min-width: 0; flex: 1; }
.mc-titles h3 { font-size: 1rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mc-titles p { margin: 0; font-size: .85rem; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mc-tier { color: var(--primary); font-weight: 700; }
.mc-balance { display: flex; align-items: baseline; gap: .5rem; margin-top: .2rem; }
.mc-balance .num { font-size: 2rem; font-weight: 800; letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.mc-balance .unit { color: var(--muted); font-weight: 600; }
.mc-meta { display: flex; flex-wrap: wrap; gap: .3rem .9rem; font-size: .82rem; color: var(--muted); }
.mc-meta span { display: inline-flex; align-items: center; gap: .25rem; }
.mc-expiry { display: flex; align-items: flex-start; gap: .45rem; font-size: .85rem; padding: .5rem .7rem; border-radius: var(--radius-sm); background: var(--surface-2); color: var(--muted); line-height: 1.4; }
.mc-expiry .icon, .mc-expiry .mx-inf { flex: none; margin-top: .1rem; }
.mc-expiry .mx-inf { font-weight: 800; }
.mc-expiry.ok { background: var(--ok-bg); color: var(--ok); }
.mc-expiry.soon { background: var(--warn-bg); color: var(--warn); font-weight: 600; }
.mc-expiry.expired { background: var(--danger-bg); color: var(--danger); font-weight: 600; }
.mc-expiry.unknown, .mc-expiry.policy { border: 1px dashed var(--border); background: transparent; }
.mc-spark { width: 100%; height: 30px; color: var(--primary); opacity: .9; display: block; }
.mc-spark-empty { height: 30px; display: grid; place-items: center; font-size: .78rem; color: var(--muted); border: 1px dashed var(--border); border-radius: var(--radius-sm); }
.mc-actions { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: auto; padding-top: .2rem; }
.miles-empty { grid-column: 1 / -1; }
.miles-empty .big { color: var(--primary); display: grid; place-items: center; }
.miles-empty .btn-row { justify-content: center; }

/* activity */
.miles-toolbar { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: .8rem; }
.miles-toolbar p { margin: .2rem 0 0; max-width: 62ch; }
.miles-toolbar-right { display: flex; gap: .5rem; align-items: center; flex-wrap: wrap; }
.miles-toolbar-right .input { width: auto; min-width: 180px; }
.miles-table td.nowrap, .nowrap { white-space: nowrap; }
.miles-table .table td { vertical-align: middle; }
.miles-prog-cell { display: inline-flex; align-items: center; gap: .45rem; white-space: nowrap; }
.miles-table-empty { padding: 2.5rem 1rem; text-align: center; color: var(--muted); display: grid; place-items: center; gap: .4rem; }
.miles-table-empty p { margin: 0; max-width: 46ch; }
.badge.pill-earn { background: var(--ok-bg); color: var(--ok); text-transform: capitalize; }
.badge.pill-redeem { background: var(--primary-soft); color: var(--primary); text-transform: capitalize; }
.badge.pill-expire { background: var(--danger-bg); color: var(--danger); text-transform: capitalize; }
.badge.pill-adjust { text-transform: capitalize; }
.miles-row-del { width: 30px; height: 30px; border-radius: 8px; }
.miles-row-del:hover { color: var(--danger); background: var(--danger-bg); }

/* settings */
.miles-settings { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1rem; }
.miles-settings .panel h2 { display: flex; align-items: center; gap: .45rem; margin-bottom: .7rem; font-size: 1.1rem; }
.miles-settings .panel h2 .icon { color: var(--primary); }
.miles-settings .panel { transition: box-shadow .25s var(--ease), transform .25s var(--ease); }
.miles-settings .panel:hover { box-shadow: var(--shadow-hover); }

/* directory (add program) */
.miles-dir-chips { margin: .7rem 0; }
.miles-dir { max-height: 46vh; overflow: auto; border: 1px solid var(--border); border-radius: var(--radius-sm); }
.miles-dir-row { display: flex; align-items: center; gap: .75rem; padding: .6rem .8rem; border-bottom: 1px solid var(--border); transition: background .15s; }
.miles-dir-row:hover { background: var(--surface-2); }
.miles-dir-row:last-child { border-bottom: 0; }
.miles-dir-row .mc-titles h3 { font-size: .95rem; }
.miles-dir-row .badge { display: none; }
@media (min-width: 560px) { .miles-dir-row .badge { display: inline-flex; } }

/* edit modal extras */
.miles-details { margin: .2rem 0 .9rem; }
.miles-details summary { cursor: pointer; font-weight: 600; color: var(--muted); font-size: .9rem; }
.miles-details summary:hover { color: var(--text); }
.miles-hist { max-height: 160px; overflow: auto; font-size: .85rem; border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: .9rem; }
.miles-hist div { display: flex; justify-content: space-between; padding: .35rem .7rem; border-bottom: 1px solid var(--border); }
.miles-hist div:last-child { border-bottom: 0; }
.modal-foot .btn.ghost.danger { border-color: transparent; }

/* ---------- Update balance modal (3 steps) ---------- */
.ub-stepper { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: .4rem; padding: 0; margin: .2rem 0 1rem; position: relative; }
.ub-stepper li button { width: 100%; display: flex; align-items: center; gap: .55rem; border: 1px solid var(--border); background: var(--surface); color: var(--muted); padding: .5rem .7rem; border-radius: var(--radius-sm); cursor: pointer; text-align: left; transition: all .2s var(--ease); font-weight: 600; font-size: .88rem; }
.ub-stepper li button:hover { border-color: var(--primary); color: var(--text); transform: translateY(-1px); }
.ub-dot { flex: none; width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; background: var(--surface-2); color: var(--muted); font-weight: 800; font-size: .82rem; transition: all .2s; }
.ub-stepper li.active button { border-color: var(--primary); background: var(--primary-soft); color: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 15%, transparent); }
.ub-stepper li.active .ub-dot { background: var(--primary); color: var(--primary-ink); }
.ub-stepper li.done .ub-dot { background: var(--ok); color: #fff; }
.ub-stepper li.done button { color: var(--text); }
.ub-lbl { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ub-step { animation: miles-fade .25s var(--ease); }
.ub-step h3 { display: flex; align-items: center; gap: .5rem; font-size: 1.15rem; margin-bottom: .4rem; }
.ub-step h3 .icon { color: var(--primary); }
.ub-open { margin: .5rem 0 1rem; }
.ub-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; align-items: start; }
.ub-look { background: var(--surface-2); border-radius: var(--radius-sm); padding: .9rem 1rem; }
.ub-look h4 { display: flex; align-items: center; gap: .4rem; margin-bottom: .4rem; }
.ub-hint { font-size: .9rem; margin-bottom: .6rem; }
.ub-check, .help-check { list-style: none; padding: 0; margin: 0; display: grid; gap: .4rem; }
.ub-check li, .help-check li { display: flex; align-items: flex-start; gap: .5rem; font-size: .88rem; line-height: 1.4; }
.ub-check li .icon, .help-check li .icon { flex: none; margin-top: .2rem; color: var(--ok); }
.ub-keys, .help-keys { list-style: none; padding: 0; margin: .4rem 0 1rem; display: grid; gap: .5rem; }
.ub-keys li, .help-keys li { display: flex; align-items: center; gap: .7rem; padding: .6rem .8rem; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface); transition: border-color .2s, box-shadow .2s; }
.ub-keys li:hover, .help-keys li:hover { border-color: color-mix(in srgb, var(--primary) 40%, var(--border)); box-shadow: var(--shadow); }
.ub-keys li > span:nth-child(2), .help-keys li > span:nth-child(2) { flex: 1; }
.ub-keys-n { flex: none; width: 24px; height: 24px; border-radius: 50%; background: var(--primary); color: var(--primary-ink); display: grid; place-items: center; font-weight: 800; font-size: .8rem; }
.kbd-combo { display: inline-flex; align-items: center; gap: .2rem; }
.kbd-combo em { font-style: normal; color: var(--muted); font-size: .8rem; }
kbd { display: inline-grid; place-items: center; min-width: 1.8em; padding: .15em .45em; font: 600 .85em ui-monospace, SFMono-Regular, Menlo, monospace; color: var(--text); background: var(--surface-2); border: 1px solid var(--border); border-bottom-width: 2px; border-radius: 6px; }
.ub-paste { min-height: 120px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .85rem; }
.ub-status:not(:empty) { margin-top: .8rem; }
.ub-loading { padding: .6rem 0; }
.ub-links { display: flex; flex-wrap: wrap; gap: .4rem .5rem; margin: .7rem 0 .3rem; }
.ub-links a { display: inline-flex; align-items: center; gap: .25rem; }
.ub-links span { color: var(--muted); }
.ub-privacy { display: flex; align-items: center; gap: .3rem; margin: 0 0 .3rem; }
.ub-foot .left { display: inline-flex; align-items: center; gap: .3rem; align-self: center; }

/* result card */
.ub-result { border: 1px solid color-mix(in srgb, var(--primary) 35%, var(--border)); border-radius: var(--radius); padding: 1rem 1.1rem; background: var(--surface); box-shadow: var(--shadow); animation: pop .25s var(--ease); }
.ub-result-head { display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; margin-bottom: .7rem; }
.ub-big { display: block; margin-bottom: .8rem; }
.ub-big-row { display: flex; align-items: center; gap: .6rem; margin-top: .3rem; }
.ub-big-input { font-size: 2rem !important; font-weight: 800 !important; letter-spacing: -.03em; padding: .4rem .7rem !important; max-width: 280px; font-variant-numeric: tabular-nums; transition: background .4s; }
.ub-big-input.flash { background: var(--primary-soft); }
.ub-unit { font-weight: 700; color: var(--muted); }
.ub-cands { margin-bottom: .9rem; }
.ub-cands .field { margin-bottom: .4rem; }
.cand { display: grid; grid-template-columns: auto 110px 1fr; gap: .6rem; align-items: center; padding: .5rem .7rem; border: 1px solid var(--border); border-radius: var(--radius-sm); cursor: pointer; margin-bottom: .4rem; transition: border-color .2s, background .2s, transform .15s; }
.cand:hover { border-color: var(--primary); transform: translateY(-1px); }
.cand:has(input:checked) { border-color: var(--primary); background: var(--primary-soft); }
.cand input { accent-color: var(--primary); }
.cand-v { font-weight: 800; font-variant-numeric: tabular-nums; }
.cand-ctx { font-size: .8rem; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cand-ctx mark, .mock mark { background: color-mix(in srgb, var(--accent) 30%, transparent); color: var(--text); border-radius: 3px; padding: 0 .15em; font-weight: 700; }
.ub-exp .field { margin-bottom: .4rem; }
.ub-batches { display: grid; gap: .4rem; margin-bottom: .5rem; }
.ub-batch { display: grid; grid-template-columns: 1fr 1fr auto; gap: .4rem; align-items: center; }
.ub-batch .icon-btn { width: 34px; height: 34px; }
.ub-batch .icon-btn:hover { color: var(--danger); background: var(--danger-bg); }
.ub-result .modal-foot { padding-top: .9rem; margin-top: .5rem; border-top: 1px solid var(--border); }
.ub-result .modal-foot .left { display: inline-flex; align-items: center; gap: .3rem; align-self: center; }

/* ---------- Mock panels (CSS illustrations, no screenshots) ---------- */
.mock { border: 1px solid var(--border); border-radius: 12px; overflow: hidden; background: var(--bg); box-shadow: var(--shadow); font-size: .8rem; line-height: 1.35; }
.mock-bar { display: flex; align-items: center; gap: .35rem; padding: .45rem .7rem; background: var(--surface-2); border-bottom: 1px solid var(--border); }
.mock-bar i { width: 9px; height: 9px; border-radius: 50%; background: var(--border); display: inline-block; }
.mock-bar i:nth-child(1) { background: #ff5f57; } .mock-bar i:nth-child(2) { background: #febc2e; } .mock-bar i:nth-child(3) { background: #28c840; }
.mock-url { margin-left: .5rem; flex: 1; background: var(--surface); border-radius: 6px; padding: .15rem .6rem; color: var(--muted); font-size: .72rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mock-page { padding: .9rem 1rem 1rem; background: var(--surface); display: grid; gap: .55rem; }
.mock-nav { display: flex; align-items: center; gap: .9rem; padding-bottom: .5rem; border-bottom: 1px solid var(--border); color: var(--muted); }
.mock-nav b { color: var(--text); margin-right: auto; }
.mock-line { display: flex; flex-wrap: wrap; gap: .5rem 1.2rem; color: var(--muted); }
.mock-cap { font-size: .72rem; text-transform: uppercase; letter-spacing: .05em; font-weight: 700; color: var(--muted); }
.mock-bal { font-size: 1.6rem; font-weight: 800; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.mock-bal small { font-size: .9rem; color: var(--muted); font-weight: 600; }
.mock-hl { position: relative; outline: 2px dashed color-mix(in srgb, var(--primary) 70%, transparent); outline-offset: 3px; border-radius: 4px; }
.mock-hl.main { outline-color: var(--accent); }
.mock-hl::after { content: attr(data-tag); position: absolute; top: -1.35rem; left: -3px; font-size: .6rem; font-weight: 800; letter-spacing: .03em; text-transform: uppercase; color: var(--primary); background: var(--surface); padding: 0 .3rem; border-radius: 4px; white-space: nowrap; }
.mock-hl.main::after { color: var(--accent); }
.mock-line .mock-hl, .mock-nav .mock-hl { margin-top: .9rem; }
.mock-bal .mock-hl, .mock-bigin .mock-hl, .mock-timeline.mock-hl, .mock-tray.mock-hl { display: inline-block; margin-top: 1rem; }
.mock-row { display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; }
.mock-row.end { justify-content: flex-end; padding-top: .4rem; border-top: 1px solid var(--border); }
.mock-bigin { display: flex; align-items: center; gap: .5rem; font-size: 1.5rem; font-weight: 800; }
.mock-bigin small { font-size: .85rem; color: var(--muted); font-weight: 600; }
.mock-cand { display: grid; grid-template-columns: auto 60px 1fr; gap: .5rem; align-items: center; padding: .35rem .55rem; border: 1px solid var(--border); border-radius: 8px; }
.mock-cand i { width: 12px; height: 12px; border-radius: 50%; border: 2px solid var(--border); }
.mock-cand span { color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mock-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem; }
.mock-in { border: 1px solid var(--border); border-radius: 7px; padding: .3rem .55rem; background: var(--surface); }
.mock-btn { display: inline-flex; align-items: center; gap: .25rem; border: 1px solid var(--border); border-radius: 7px; padding: .25rem .55rem; font-weight: 600; white-space: nowrap; }
.mock-btn.primary { background: var(--primary); color: var(--primary-ink); border-color: transparent; }
.mock-btn.soft { background: var(--primary-soft); color: var(--primary); border-color: transparent; }
.mock-offer-top { display: flex; align-items: center; gap: .6rem; }
.mock-offer-top > div { flex: 1; min-width: 0; }
.mock-logo { width: 32px; height: 32px; border-radius: 9px; background: #006564; color: #fff; display: grid; place-items: center; font-weight: 800; font-size: .75rem; flex: none; }
.mock-timeline { display: flex; align-items: center; gap: .6rem; padding: .5rem .6rem; }
.mock-timeline i { flex: 1; height: 2px; background: var(--primary); position: relative; }
.mock-timeline i::after { content: ""; position: absolute; right: -3px; top: -3px; width: 8px; height: 8px; border-radius: 50%; background: var(--primary); }
.mock-offer-bottom { display: flex; justify-content: space-between; align-items: flex-end; gap: .8rem; flex-wrap: wrap; padding-top: .4rem; }
.mock-offer-bottom .price-tag .after { font-size: 1.2rem; }
.mock-topbar { display: flex; align-items: center; gap: .8rem; color: var(--muted); padding-bottom: .5rem; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.mock-topbar b { color: var(--text); margin-right: auto; }
.mock-switch { display: inline-block; width: 26px; height: 15px; border-radius: 999px; background: var(--border); position: relative; vertical-align: middle; }
.mock-switch i { position: absolute; top: 2px; left: 2px; width: 11px; height: 11px; border-radius: 50%; background: #fff; box-shadow: 0 1px 2px rgba(0,0,0,.3); }
.mock-switch.on { background: var(--primary); } .mock-switch.on i { left: 13px; }
.mock-cards { display: grid; gap: .4rem; }
.mock-mini { display: flex; align-items: center; justify-content: space-between; gap: .5rem; padding: .45rem .6rem; border: 1px solid var(--border); border-radius: 8px; }
.mock-tray { display: inline-flex; align-items: center; gap: .5rem; padding: .35rem .5rem .35rem .4rem; border: 1px solid var(--border); border-radius: 999px; background: var(--surface); justify-self: center; }
.mock-thumb { width: 22px; height: 22px; border-radius: 6px; background: linear-gradient(135deg, var(--sky-2), var(--sky-3)); }
.mock-table { width: 100%; border-collapse: collapse; }
.mock-table th, .mock-table td { text-align: left; padding: .35rem .5rem; border-bottom: 1px solid var(--border); }
.mock-table th { font-size: .7rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }
.mock-table td.best { background: var(--ok-bg); color: var(--ok); font-weight: 700; }
.mock-table td.mock-hl { outline-offset: -2px; }
.mock-summary { padding-top: .4rem; }
.mock-chat { display: grid; gap: .6rem; }
.mock-bubble { max-width: 90%; padding: .55rem .75rem; border-radius: 14px; }
.mock-bubble.me { justify-self: end; background: var(--primary); color: var(--primary-ink); border-bottom-right-radius: 4px; }
.mock-bubble.ai { background: var(--surface-2); border-bottom-left-radius: 4px; }
.mock-bubble ul { margin: .3rem 0 .3rem 1.1rem; padding: 0; } .mock-bubble li { margin: .15rem 0; }

/* ---------- Help & tutorials page ---------- */
.help-page { padding: 1.5rem 1.25rem 3rem; }
.help-layout { display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: 2rem; align-items: start; }
.help-nav { position: sticky; top: calc(var(--header-h) + 1rem); display: grid; gap: .35rem; }
.help-nav-item { display: flex; align-items: center; gap: .7rem; padding: .65rem .8rem; border-radius: var(--radius-sm); color: var(--text); border: 1px solid transparent; text-decoration: none !important; transition: all .2s var(--ease); }
.help-nav-item span:last-child { display: grid; min-width: 0; }
.help-nav-item b { font-size: .95rem; } .help-nav-item small { color: var(--muted); font-size: .78rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.help-nav-ic { flex: none; width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; background: var(--surface-2); color: var(--muted); transition: all .2s; }
.help-nav-item:hover { background: var(--surface); border-color: var(--border); box-shadow: var(--shadow); transform: translateX(2px); }
.help-nav-item:hover .help-nav-ic { color: var(--primary); }
.help-nav-item.active { background: var(--surface); border-color: color-mix(in srgb, var(--primary) 40%, var(--border)); box-shadow: var(--shadow); }
.help-nav-item.active .help-nav-ic { background: var(--primary); color: var(--primary-ink); }
.help-nav-foot { margin-top: .6rem; }
.help-content { min-width: 0; }
.help-title { margin-bottom: 1rem; }
.help-title h1 { font-size: 1.9rem; margin-bottom: .5rem; }
.help-title p { max-width: 70ch; font-size: 1.02rem; }
.help-toc { display: flex; flex-wrap: wrap; align-items: center; gap: .35rem .5rem; margin-bottom: 1.5rem; }
.help-toc a { font-size: .82rem; font-weight: 600; padding: .25rem .65rem; border-radius: 999px; background: var(--surface); border: 1px solid var(--border); color: var(--muted); transition: all .2s; }
.help-toc a:hover { color: var(--primary); border-color: var(--primary); text-decoration: none; transform: translateY(-1px); }
.help-steps { position: relative; display: grid; gap: 1.25rem; margin-bottom: 1.5rem; }
.help-steps::before { content: ""; position: absolute; left: 19px; top: 40px; bottom: 40px; border-left: 2px dashed var(--border); }
.help-step { display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 1rem; position: relative; }
.help-step-num { width: 40px; height: 40px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--primary-2)); color: #fff; display: grid; place-items: center; font-weight: 800; font-size: 1.05rem; box-shadow: 0 8px 18px -10px var(--primary); position: relative; z-index: 1; }
.help-step-body { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 1.1rem 1.25rem 1rem; transition: box-shadow .25s var(--ease), border-color .25s; min-width: 0; }
.help-step-body:hover { box-shadow: var(--shadow-hover); }
.help-step-body h2, .help-section h2 { display: flex; align-items: center; gap: .5rem; font-size: 1.2rem; margin-bottom: .6rem; }
.help-step-body h2 .icon, .help-section h2 .icon { color: var(--primary); flex: none; }
.help-step-body h4 { margin: .8rem 0 .4rem; }
.help-section { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 1.1rem 1.25rem 1rem; margin-bottom: 1.25rem; }
.help-step.is-target .help-step-body, .help-section.is-target { border-color: var(--primary); box-shadow: 0 0 0 4px color-mix(in srgb, var(--primary) 18%, transparent), var(--shadow-hover); }
.help-step, .help-section { scroll-margin-top: calc(var(--header-h) + 1rem); }
.help-fig { margin: .8rem 0 1rem; }
.help-fig figcaption { margin-top: .4rem; }
.help-list { margin: .4rem 0 .6rem; padding-left: 1.2rem; display: grid; gap: .35rem; }
.help-dl { margin: .4rem 0 .4rem; display: grid; gap: .25rem .9rem; grid-template-columns: minmax(0, 1fr); }
.help-dl dt { font-weight: 700; margin-top: .5rem; display: flex; align-items: center; gap: .35rem; }
.help-dl dt .icon { color: var(--primary); }
.help-dl dd { margin: 0; color: var(--muted); }
.help-dl dd b, .help-dl dd a { color: var(--text); } .help-dl dd a { color: var(--primary); }
@media (min-width: 760px) { .help-dl.cols { grid-template-columns: max-content minmax(0, 1fr); } .help-dl.cols dt, .help-dl.cols dd { margin-top: .4rem; } }
.help-table { margin: .6rem 0 .8rem; }
.help-table .table td { vertical-align: middle; }
.help-prog { display: flex; align-items: center; gap: .6rem; min-width: 200px; }
.help-prog .logo-wrap { transition: transform .25s var(--ease); }
.help-table tr:hover .logo-wrap { transform: scale(1.08); }
.help-prompts { margin: .6rem 0 1rem; }
.help-prompts .chip { text-decoration: none !important; }
.help-faqs { display: grid; gap: .5rem; }
.help-faq { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 0; transition: border-color .2s, box-shadow .2s; }
.help-faq:hover { border-color: color-mix(in srgb, var(--primary) 40%, var(--border)); box-shadow: var(--shadow); }
.help-faq summary { cursor: pointer; font-weight: 700; padding: .85rem 1rem; list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.help-faq summary::-webkit-details-marker { display: none; }
.help-faq summary::after { content: "+"; color: var(--primary); font-weight: 800; font-size: 1.1rem; transition: transform .2s; }
.help-faq[open] summary::after { transform: rotate(45deg); }
.help-faq-a { padding: 0 1rem .9rem; color: var(--muted); } .help-faq-a b, .help-faq-a code { color: var(--text); }
.help-next { display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; padding-top: 1rem; border-top: 1px solid var(--border); }
.help-content .notice { margin: .8rem 0; }
.help-content .notice .icon { flex: none; margin-top: .15rem; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .help-layout { grid-template-columns: 1fr; gap: 1rem; }
  .help-nav { position: static; display: flex; gap: .4rem; overflow-x: auto; padding-bottom: .4rem; scrollbar-width: none; margin: 0 -1.25rem; padding-left: 1.25rem; padding-right: 1.25rem; }
  .help-nav::-webkit-scrollbar { display: none; }
  .help-nav-item { flex: none; border: 1px solid var(--border); border-radius: 999px; padding: .35rem .8rem .35rem .4rem; background: var(--surface); color: var(--muted); font-weight: 600; }
  .help-nav-item span:last-child small { display: none; }
  .help-nav-item b { font-size: .85rem; font-weight: 600; }
  .help-nav-item.active { background: var(--primary); color: var(--primary-ink); border-color: var(--primary); }
  .help-nav-item.active .help-nav-ic { background: rgba(255,255,255,.2); color: #fff; }
  .help-nav-ic { width: 26px; height: 26px; border-radius: 50%; }
  .help-nav-foot { display: none; }
  .help-page { padding-top: 1rem; }
  .help-title h1 { font-size: 1.5rem; }
}
@media (max-width: 720px) {
  .miles-cards { grid-template-columns: 1fr; }
  .miles-head .btn-row { width: 100%; }
  .miles-head .btn-row .btn { flex: 1; }
  .ub-cols { grid-template-columns: 1fr; }
  .ub-stepper { gap: .3rem; }
  .ub-stepper li button { padding: .45rem .5rem; justify-content: center; }
  .ub-stepper li:not(.active) .ub-lbl { display: none; }
  .cand { grid-template-columns: auto 1fr; }
  .cand-ctx { grid-column: 1 / -1; white-space: normal; }
  .ub-big-input { max-width: none; }
  .help-steps::before { display: none; }
  .help-step { grid-template-columns: 1fr; gap: .5rem; }
  .help-step-num { width: 32px; height: 32px; font-size: .9rem; }
  .help-step-body, .help-section { padding: 1rem; }
  .mock-hl::after { font-size: .55rem; }
}