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var(--line);background:var(--surface-2);color:var(--ink);border-radius:12px;padding:0 18px;font-size:1rem}.btn--ghost{background:transparent}.bpm{display:flex;flex-direction:column;gap:14px}.bpm__readout{display:flex;align-items:baseline;gap:10px}.bpm__number{font-size:clamp(56px,9vw,92px);line-height:1;color:var(--ink);width:4ch;font-variant-numeric:tabular-nums;text-align:center;background:transparent;border:none;border-bottom:2px dashed var(--line);-moz-appearance:textfield;-webkit-appearance:textfield;appearance:textfield}.bpm__number::-webkit-inner-spin-button,.bpm__number::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.bpm__number:focus-visible{outline:none;border-bottom-color:var(--accent)}.bpm__unit{font-size:1rem;color:var(--muted);letter-spacing:.1em}.bpm__slider-row{display:flex;align-items:center;gap:12px}.step-btn{width:44px;border-radius:12px;border:1px solid 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var(--line)}.setting-row:last-child{border-bottom:none}.setting-row__label{color:var(--ink)}.select{border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:0 12px;font-size:1rem}.toggle{position:relative;width:52px;height:44px;border:none;background:transparent;padding:0;flex:none}.toggle:before{content:"";position:absolute;top:50%;left:0;transform:translateY(-50%);width:52px;height:30px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line);transition:background .16s ease,border-color .16s ease}.toggle[aria-checked=true]:before{background:var(--olive);border-color:var(--olive)}.toggle__knob{position:absolute;top:50%;left:4px;width:24px;height:24px;border-radius:50%;background:#fff;transform:translateY(-50%);box-shadow:0 1px 3px #00000047;transition:transform .16s ease}.toggle[aria-checked=true] .toggle__knob{transform:translate(20px,-50%)}.volume{display:flex;align-items:center;gap:10px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:14px}.stat-tile{background:var(--surface-2);border-radius:12px;padding:16px}.stat-tile__value{font-size:1.8rem;color:var(--ink)}.stat-tile__label{color:var(--muted);font-size:.85rem}.history{list-style:none;margin:0;padding:0;max-height:420px;overflow-y:auto}.history__row{display:grid;grid-template-columns:1.4fr 1fr .8fr .7fr;gap:8px;padding:12px 8px;border-bottom:1px solid var(--line);font-size:.95rem}.history__empty{color:var(--muted);padding:24px 8px;text-align:center}.session-bar{display:flex;gap:22px;flex-wrap:wrap;color:var(--muted)}.session-bar strong{color:var(--ink)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#140e0873;display:flex;align-items:center;justify-content:center;padding:20px;z-index:50}.modal{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px;max-width:440px;width:100%}.modal h2{margin-top:0}.warning{display:flex;align-items:center;justify-content:space-between;gap:12px;background:color-mix(in srgb,var(--warn) 22%,var(--surface));border:1px solid var(--warn);border-radius:12px;padding:12px 16px;color:var(--ink)}.badge{display:inline-flex;align-items:center;gap:6px;font-size:.8rem;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:4px 10px}.badge--offline{color:var(--olive);border-color:var(--olive)}:root,[data-theme=day]{--bg: #f5efe4;--surface: #fbf7ee;--surface-2: #efe7d6;--line: #e0d6c2;--ink: #2c2118;--muted: #8a7c6a;--accent: #b5683c;--accent-2: #c8924a;--olive: #7e8b6b;--ok: #6f8a5b;--warn: #c8924a;--danger: #b3503f;--shadow: 0 10px 30px rgba(60, 42, 28, .1);--radius: 16px}[data-theme=night]{--bg: #211a15;--surface: #2a221b;--surface-2: #33291f;--line: #3d3326;--ink: #f1e8da;--muted: #a99a86;--accent: #d2895a;--accent-2: #e0ad6b;--olive: #9aa783;--ok: #9bb47e;--warn: #e0ad6b;--danger: #d2735e;--shadow: 0 12px 40px rgba(0, 0, 0, .35);--radius: 16px}*{box-sizing:border-box}html{scrollbar-gutter:stable}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--ink);font-family:Inter,system-ui,PingFang SC,Microsoft YaHei,sans-serif;line-height:1.6;letter-spacing:.01em;-webkit-font-smoothing:antialiased}.font-display{font-family:Iowan Old Style,Palatino Linotype,Georgia,serif;font-variant-numeric:tabular-nums}.tabular{font-variant-numeric:tabular-nums}@media (prefers-reduced-motion: reduce){*{animation-duration:.001ms!important;transition-duration:.001ms!important}}.app{min-height:100vh;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;gap:16px;padding:14px clamp(16px,4vw,32px);border-bottom:1px solid var(--line);background:var(--surface)}.topbar__brand{font-family:Iowan Old Style,Georgia,serif;font-size:1.3rem;font-weight:700}.topbar__trainer{color:var(--muted);font-size:.9rem}.topbar__spacer{flex:1}.layout{flex:1;display:grid;grid-template-columns:200px 1fr;gap:clamp(16px,3vw,28px);width:min(1100px,100% - 32px);margin:clamp(16px,4vw,32px) auto}.nav{display:flex;flex-direction:column;gap:8px}.nav__item{text-align:left;border:1px solid transparent;background:transparent;color:var(--ink);border-radius:12px;padding:12px 16px;min-height:44px;cursor:pointer;font-size:1rem}.nav__item--active{background:var(--surface);border-color:var(--line);box-shadow:var(--shadow)}.nav__item:disabled{color:var(--muted);cursor:default}.main{display:flex;flex-direction:column;gap:20px}.metro-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:20px;align-items:start}.transport-block{display:flex;flex-direction:column;gap:24px}.transport-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}@media (max-width: 840px){.layout{grid-template-columns:1fr}.nav{flex-direction:row;flex-wrap:wrap}.metro-grid{grid-template-columns:1fr}}