/* 途灵 AI: a calm page with an AI feel (the 35B mockup's gradients and glow, 2026-11-15), readable in light and dark */
:root {
  --bg: #f6f7fb; --bg2: #ffffff; --fg: #141826; --muted: #5d6478; --line: #e3e6ef;
  --pri: #4f46e5; --pri2: #06b6d4; --ok: #059669; --warn: #d97706; --bad: #dc2626;
  --glow: 0 8px 30px rgba(79, 70, 229, .12); --r: 14px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0d1020; --bg2: #161a2e; --fg: #eef0f8; --muted: #a3a9be; --line: #262b45;
          --glow: 0 8px 30px rgba(99, 102, 241, .25); color-scheme: dark; }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 15px/1.6 -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; }
a { color: var(--pri); text-decoration: none; }
.top { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: 12px; padding: 10px 16px;
       padding-top: calc(10px + env(safe-area-inset-top, 0px)); background: color-mix(in srgb, var(--bg2) 88%, transparent);
       backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 8px; color: var(--fg); }
.logo { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 9px; color: #fff; font-weight: 700;
        background: linear-gradient(135deg, var(--pri), var(--pri2)); box-shadow: var(--glow); }
nav { display: flex; gap: 4px; margin-left: auto; }
nav a { padding: 6px 12px; border-radius: 999px; color: var(--muted); }
nav a.on { background: color-mix(in srgb, var(--pri) 14%, transparent); color: var(--pri); font-weight: 600; }
#enter { margin-left: auto; }
main { max-width: 760px; margin: 0 auto; padding: 16px 16px 40px; }
.page { display: none; }
.page.on { display: block; }
h1 { font-size: 30px; line-height: 1.3; margin: 8px 0 12px; }
h2 { font-size: 18px; margin: 0 0 12px; }
.grad { background: linear-gradient(90deg, var(--pri), var(--pri2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero { position: relative; text-align: center; padding: 40px 8px 24px; overflow: hidden; }
.orb { position: absolute; inset: -40% 20% auto; height: 260px; border-radius: 50%; filter: blur(60px); opacity: .35; z-index: -1;
       background: radial-gradient(circle, var(--pri), transparent 60%), radial-gradient(circle at 70% 40%, var(--pri2), transparent 55%); }
.lead { color: var(--muted); max-width: 520px; margin: 0 auto 20px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; border: 0; border-radius: 10px; cursor: pointer;
       padding: 9px 16px; font: inherit; font-weight: 600; color: #fff; background: linear-gradient(135deg, var(--pri), #6366f1); box-shadow: var(--glow); }
.btn:disabled { opacity: .5; cursor: default; }
.btn.big { padding: 13px 34px; font-size: 17px; }
.btn.small { padding: 6px 12px; font-size: 13px; }
.btn.full { width: 100%; margin-top: 8px; }
.btn.ghost { background: transparent; color: var(--pri); border: 1px solid var(--line); box-shadow: none; }
.btn.danger { background: transparent; color: var(--bad); border: 1px solid var(--line); box-shadow: none; }
.features { display: grid; gap: 10px; margin: 8px 0 24px; }
.feat { display: flex; gap: 14px; padding: 14px 16px; background: var(--bg2); border: 1px solid var(--line); border-radius: var(--r); }
.feat p { margin: 2px 0 0; color: var(--muted); font-size: 14px; }
.fi { font-size: 24px; }
.example { display: grid; gap: 8px; }
.note, .muted { color: var(--muted); }
.small { font-size: 13px; }
.note { font-size: 13px; text-align: center; margin-top: 24px; }
.panel { background: var(--bg2); border: 1px solid var(--line); border-radius: var(--r); padding: 18px; margin-bottom: 14px; }
.narrow { max-width: 420px; margin: 24px auto; }
.tabs { display: flex; gap: 4px; margin-bottom: 14px; }
.tabs button { flex: 1; padding: 8px; border: 0; border-radius: 8px; background: transparent; color: var(--muted); font: inherit; cursor: pointer; }
.tabs button.on { background: color-mix(in srgb, var(--pri) 14%, transparent); color: var(--pri); font-weight: 600; }
label { display: block; margin-bottom: 10px; font-size: 13px; color: var(--muted); }
input, textarea { display: block; width: 100%; margin-top: 4px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px;
                  background: var(--bg); color: var(--fg); font: inherit; font-size: 16px; }
input:focus, textarea:focus { outline: 2px solid color-mix(in srgb, var(--pri) 50%, transparent); border-color: transparent; }
.row { display: flex; gap: 8px; align-items: flex-end; }
.row .grow { flex: 1; }
.row .btn { margin-bottom: 10px; white-space: nowrap; }
.err { color: var(--bad); font-size: 13px; min-height: 1em; margin: 8px 0 0; }
/* the conversation */
.chat { display: flex; flex-direction: column; gap: 10px; min-height: calc(100vh - 220px); padding-bottom: 90px; }
.bubble { max-width: 86%; padding: 10px 14px; border-radius: 16px; white-space: pre-wrap; word-break: break-word; }
.bubble.user { align-self: flex-end; color: #fff; background: linear-gradient(135deg, var(--pri), #6366f1); border-bottom-right-radius: 4px; }
.bubble.ai { align-self: flex-start; background: var(--bg2); border: 1px solid var(--line); border-bottom-left-radius: 4px; }
.bubble.wait { color: var(--muted); }
.bubble.notice { max-width: 94%; font-size: 14px; line-height: 1.55; border-left: 3px solid var(--pri); font-variant-numeric: tabular-nums; }
.bubble.notice a { display: inline-block; margin-top: 4px; }
.dots::after { content: "…"; animation: blink 1.2s infinite; }
@keyframes blink { 50% { opacity: .2; } }
.card { background: var(--bg2); border: 1px solid var(--line); border-radius: var(--r); padding: 14px 16px; box-shadow: var(--glow); max-width: 560px; }
.card .ch { display: flex; align-items: center; gap: 8px; }
.card .ki { font-size: 20px; }
.card .sum { margin: 6px 0 2px; font-weight: 600; }
.card .acts { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.card.done { box-shadow: none; opacity: .85; }
.composer { position: fixed; left: 0; right: 0; bottom: 0; display: flex; gap: 8px; max-width: 760px; margin: 0 auto;
            padding: 10px 16px calc(10px + env(safe-area-inset-bottom, 0px)); background: var(--bg); border-top: 1px solid var(--line); }
.composer textarea { margin: 0; resize: none; max-height: 140px; }
/* plans */
.head-row { display: flex; justify-content: space-between; align-items: center; }
.list { display: grid; gap: 10px; }
.list > * { min-width: 0; }
.item { display: flex; gap: 12px; align-items: center; padding: 14px 16px; background: var(--bg2); border: 1px solid var(--line);
        border-radius: var(--r); color: var(--fg); }
.item .ki { font-size: 24px; }
.item .grow { flex: 1; min-width: 0; overflow: hidden; }
.item .chip { flex: none; }
.item .t { font-weight: 600; }
.item .s { color: var(--muted); font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chip { font-size: 12px; padding: 2px 9px; border-radius: 999px; white-space: nowrap; }
.chip.watching { background: color-mix(in srgb, var(--pri) 14%, transparent); color: var(--pri); }
.chip.found { background: color-mix(in srgb, var(--ok) 16%, transparent); color: var(--ok); }
.chip.paused { background: color-mix(in srgb, var(--warn) 18%, transparent); color: var(--warn); }
.chip.expired { background: var(--line); color: var(--muted); }
.back { display: inline-block; margin-bottom: 10px; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 4px 14px; font-size: 14px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }
pre.res { white-space: pre-wrap; word-break: break-word; font: 13px/1.6 ui-monospace, Menlo, monospace; background: var(--bg); padding: 10px; border-radius: 10px; margin: 0; }
.spark { width: 100%; height: 80px; }
.runs { font-size: 13px; color: var(--muted); }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 10px; }
.stat { padding: 12px; background: var(--bg); border-radius: 10px; }
.stat b { display: block; font-size: 22px; }
.sw-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; color: var(--fg); font-size: 15px; padding: 8px 0; }
.sw-row small { display: block; color: var(--muted); font-size: 12px; }
.sw-row input { width: 22px; height: 22px; margin: 0; flex: none; }
.empty { text-align: center; color: var(--muted); padding: 30px 0; }
.toast { position: fixed; left: 50%; bottom: 90px; transform: translateX(-50%); padding: 10px 16px; border-radius: 10px; color: #fff;
         background: #1f2437; box-shadow: var(--glow); z-index: 9; max-width: 90vw; }
@media (min-width: 640px) { .features { grid-template-columns: repeat(3, 1fr); } .feat { flex-direction: column; gap: 6px; } }
/* passkeys, the admins' pages */
body.wide main { max-width: 1100px; }
.subnav { display: flex; gap: 4px; flex-wrap: wrap; margin-bottom: 14px; }
.subnav a { padding: 6px 12px; border-radius: 999px; color: var(--muted); border: 1px solid var(--line); background: var(--bg2); }
.subnav a.on { color: var(--pri); border-color: color-mix(in srgb, var(--pri) 40%, transparent); font-weight: 600; }
.filters { display: flex; gap: 6px; margin-bottom: 10px; }
.filters a { font-size: 13px; padding: 3px 10px; border-radius: 999px; color: var(--muted); }
.filters a.on { background: color-mix(in srgb, var(--pri) 14%, transparent); color: var(--pri); }
.tbl { overflow-x: auto; margin: 0 -4px; }
.tbl table { width: 100%; border-collapse: collapse; font-size: 14px; }
.tbl th { text-align: left; font-weight: 600; color: var(--muted); font-size: 12px; padding: 6px 8px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.tbl td { padding: 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
.tbl td.acts { white-space: nowrap; }
.tbl td.acts .btn + .btn { margin-left: 6px; }
.tbl details summary { cursor: pointer; }
.stat.bad b, b.bad { color: var(--bad); }
.acts { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
select { padding: 8px 10px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg); color: var(--fg); font: inherit; margin-top: 4px; display: block; }
.row.wrap { flex-wrap: wrap; gap: 16px; align-items: center; }
label.check { display: flex; align-items: center; gap: 6px; color: var(--fg); font-size: 14px; margin: 0; }
label.check input { width: auto; margin: 0; }
.newlink { margin-top: 14px; padding: 12px; border-radius: 10px; background: color-mix(in srgb, var(--ok) 10%, transparent); }
.newlink input { margin: 0; font-size: 13px; }
.newlink .row .btn { margin-bottom: 0; }
.chat.mini { min-height: 0; padding-bottom: 0; }
#pkLogin { margin: 6px 0 10px; }
.err:empty { display: none; }
#setForm, #invForm { max-width: 520px; }