/* ======================================================================
   Tabata 间歇训练计时器 · 独立设计（运动表盘主题：炭黑 + 荧光橙红）
   ====================================================================== */
.ti{
  --ink:#16211e; --sub:#5c6b67; --faint:#93a29d;
  --bg:#f2f5f4; --card:#ffffff; --card2:#e9efed; --line:#d5e0dc; --line2:#e2eae7;
  --pri:#e8431f; --pri-2:#ff6a45; --pri-soft:#ffe4da; --pri-ink:#c2360f;
  --rest:#0284c7; --rest-soft:#dceffb;
  --go:#4d7c0f; --go-soft:#eef6dc;
  --red:#c62828; --red-soft:#fdeaea;
  --r:18px;
  --shadow:0 1px 2px rgba(22,33,30,.06),0 12px 28px rgba(232,67,31,.10);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:15px; line-height:1.75;
  background:
    radial-gradient(900px 460px at 85% -160px, rgba(232,67,31,.10), transparent 62%),
    radial-gradient(760px 400px at -10% 170px, rgba(2,132,199,.07), transparent 60%),
    var(--bg);
  padding:0 16px 56px;
}
:root[data-theme="dark"] .ti{
  --ink:#f2f4f3; --sub:#9aa5a2; --faint:#5f6b68;
  --bg:#0d1110; --card:#151b19; --card2:#1c2422; --line:#2a3734; --line2:#222d2b;
  --pri:#ff5a36; --pri-2:#ff7d5c; --pri-soft:rgba(255,90,54,.14); --pri-ink:#ffb59d;
  --rest:#38bdf8; --rest-soft:rgba(56,189,248,.13);
  --go:#a3e635; --go-soft:rgba(163,230,53,.13);
  --red:#f87171; --red-soft:rgba(248,113,113,.14);
  --shadow:0 1px 2px rgba(0,0,0,.5),0 14px 34px rgba(0,0,0,.5);
}
.ti *{box-sizing:border-box;}
.ti b{font-weight:700;}
.ti-wrap{max-width:1120px;margin:0 auto;}

.ti-hero{margin-top:22px;border-radius:20px;padding:24px 28px;box-shadow:var(--shadow);
  border:1px solid var(--line);background:var(--card);}
.ti-hero h1{margin:0 0 8px;font-size:clamp(23px,3.4vw,31px);font-weight:900;line-height:1.3;}
.ti-hero h1 span{color:var(--pri);}
.ti-hero p{margin:0;max-width:820px;font-size:14.5px;color:var(--sub);}
.ti-hero p em{font-style:normal;color:var(--pri-ink);font-weight:700;}

.ti-desk{display:grid;grid-template-columns:1fr minmax(300px,420px);gap:20px;margin-top:20px;align-items:start;}
@media (max-width:880px){.ti-desk{grid-template-columns:1fr;}}
.ti-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:18px;}
.ti-card h2{margin:0 0 12px;font-size:16px;font-weight:900;display:flex;align-items:center;gap:8px;}
.ti-card h2 i{font-style:normal;color:var(--pri);}

.ti-field{margin-bottom:12px;}
.ti-field label{display:flex;justify-content:space-between;font-size:13px;font-weight:800;color:var(--sub);margin-bottom:5px;}
.ti-field label output{color:var(--pri-ink);}
.ti-in{width:100%;border:1px solid var(--line);background:var(--card2);color:var(--ink);border-radius:10px;
  padding:8px 12px;font-size:14px;outline:none;}
.ti-in:focus{border-color:var(--pri-2);box-shadow:0 0 0 3px var(--pri-soft);}
.ti-presets{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px;}
.ti-chip{border:1px solid var(--line);background:var(--card2);color:var(--sub);border-radius:999px;
  padding:5px 13px;font-size:12.5px;cursor:pointer;font-weight:700;}
.ti-chip.on,.ti-chip:hover{border-color:var(--pri-2);color:var(--pri-ink);}
.ti-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}
.ti-btn{border:none;border-radius:12px;padding:10px 20px;font-size:14px;font-weight:900;cursor:pointer;transition:all .15s;}
.ti-btn-go{background:var(--pri);color:#fff;}
.ti-btn-go:hover{background:var(--pri-2);}
.ti-btn-pause{background:var(--go);color:#12200a;}
.ti-btn-ghost{background:var(--card2);color:var(--pri-ink);border:1px solid var(--line);}
.ti-btn-ghost:hover{border-color:var(--pri-2);}
.ti-msg{margin-top:10px;font-size:13px;min-height:20px;font-weight:700;}
.ti-msg.err{color:var(--red);}
.ti-msg.ok{color:var(--go);}

/* ---------- 表盘 ---------- */
.ti-dial{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;
  background:var(--card2);border:1px solid var(--line);border-radius:var(--r);padding:20px;min-height:420px;}
.ti-ring{position:relative;width:min(300px,72vw);}
.ti-ring svg{width:100%;height:auto;display:block;transform:rotate(-90deg);}
.ti-track{fill:none;stroke:var(--line);stroke-width:14;}
.ti-prog{fill:none;stroke:var(--pri);stroke-width:14;stroke-linecap:round;transition:stroke .2s;}
.ti-center{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;}
.ti-phase{font-size:15px;font-weight:900;letter-spacing:.22em;color:var(--pri);}
.ti-num{font-size:64px;font-weight:900;line-height:1.1;font-variant-numeric:tabular-nums;}
.ti-set{font-size:13.5px;color:var(--sub);font-weight:700;}
.ti-total{margin-top:14px;font-size:13px;color:var(--sub);}
.ti-total b{color:var(--pri-ink);font-variant-numeric:tabular-nums;}
.ti-dial.work .ti-prog{stroke:var(--pri);}
.ti-dial.work .ti-phase{color:var(--pri);}
.ti-dial.rest .ti-prog{stroke:var(--rest);}
.ti-dial.rest .ti-phase{color:var(--rest);}
.ti-dial.done .ti-prog{stroke:var(--go);}
.ti-dial.done .ti-phase{color:var(--go);}
.ti-flash{position:absolute;inset:0;border-radius:var(--r);pointer-events:none;opacity:0;}
.ti-flash.on{animation:tiFlash .5s ease-out 1;}
@keyframes tiFlash{0%{opacity:.5;background:var(--pri);}100%{opacity:0;}}
.ti-quiet{margin-top:10px;font-size:12.5px;color:var(--sub);}

/* ---------- 全程时间线 / 训练记录 ---------- */
.ti-extra{margin-top:20px;}
.tix-presets{margin-bottom:8px;}
.tix-bar{display:flex;flex-wrap:wrap;gap:12px;align-items:center;font-size:12.5px;color:var(--sub);font-weight:700;}
.tix-mute{display:flex;align-items:center;gap:6px;cursor:pointer;}
.tix-key{background:var(--card2);border:1px solid var(--line);border-radius:7px;padding:2px 8px;
  font-weight:800;color:var(--pri-ink);}
.tix-status{margin-left:auto;}
.tix-dw,.tix-dr{display:inline-block;width:10px;height:10px;border-radius:2px;vertical-align:-1px;margin:0 3px 0 6px;}
.tix-dw{background:var(--pri);}
.tix-dr{background:var(--rest);}
.tix-chart{margin-top:12px;overflow-x:auto;background:var(--card2);border:1px solid var(--line);
  border-radius:12px;padding:10px;}
.tix-chart svg{display:block;min-width:640px;width:100%;height:auto;}
.tix-work{fill:var(--pri);}
.tix-rest{fill:var(--rest);}
.tix-lab{fill:#fff;font-size:8px;font-weight:700;font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;}
.tix-cursor{stroke:var(--go);stroke-width:2;}
.tix-ax{fill:var(--sub);font-size:8px;font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;}
.tix-dim{font-size:12.5px;color:var(--faint);}
.tix-h3{margin:16px 0 8px;font-size:14px;font-weight:900;color:var(--pri-ink);
  display:flex;align-items:center;gap:8px;}
.tix-clear{margin-left:auto;border:1px solid var(--line);background:var(--card2);color:var(--sub);
  border-radius:8px;padding:2px 10px;font-size:12px;font-weight:800;cursor:pointer;}
.tix-clear:hover{border-color:var(--red);color:var(--red);}
.tix-rec{display:flex;flex-direction:column;gap:6px;}
.tix-ritem{display:flex;flex-wrap:wrap;gap:8px;align-items:center;border:1px solid var(--line);
  background:var(--card2);border-radius:10px;padding:7px 12px;font-size:12.5px;color:var(--sub);}
.tix-ritem b{color:var(--pri-ink);}
.tix-rtime{margin-left:auto;color:var(--faint);font-size:11.5px;}
.tix-go{border:1px solid var(--line);background:var(--card);color:var(--pri-ink);border-radius:7px;
  padding:2px 9px;font-size:12px;font-weight:800;cursor:pointer;}
.tix-go:hover{border-color:var(--pri-2);}
.tix-dimrec{font-size:12.5px;color:var(--faint);}
.tix-msg{margin-top:10px;font-size:12.5px;min-height:18px;font-weight:700;}
.tix-msg.err{color:var(--red);}
.tix-msg.ok{color:var(--go);}
@media (max-width:640px){.tix-status{margin-left:0;width:100%;}}