/* ============================================================
   平板支撑挑战计算器 · 训练打卡板 / 环形计时 + 28 格日历
   前缀 plk- · 冷白 + 深松墨绿 + 电光柠檬 + 珊瑚，浅色默认；深色整套覆盖
   ============================================================ */
.plk-page, .plk-modal, .plk-toast {
    --plk-bg: #f3f7f2;
    --plk-bg2: #e4eee2;
    --plk-panel: #ffffff;
    --plk-panel2: #f2f7f0;
    --plk-ink: #183428;
    --plk-sub: #61756a;
    --plk-line: #dce8dc;
    --plk-line2: #bfd3bf;
    --plk-green: #1c5c43;
    --plk-green-deep: #123c2c;
    --plk-lime: #9bcb1e;
    --plk-lime-soft: #eef7d6;
    --plk-coral: #e46a4a;
    --plk-gold: #c98a18;
    --plk-shadow: 0 18px 42px rgba(24, 60, 38, .12);
    --plk-shadow-sm: 0 3px 12px rgba(24, 60, 38, .08);
    --plk-mono: ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}
:root[data-theme="dark"] .plk-page, :root[data-theme="dark"] .plk-modal, :root[data-theme="dark"] .plk-toast {
    --plk-bg: #0d1511;
    --plk-bg2: #14231a;
    --plk-panel: #121d17;
    --plk-panel2: #1a2a20;
    --plk-ink: #e4f0e3;
    --plk-sub: #9bb3a2;
    --plk-line: #26382c;
    --plk-line2: #3a5542;
    --plk-green: #67c998;
    --plk-green-deep: #9ee3b9;
    --plk-lime: #cbe957;
    --plk-lime-soft: #27361a;
    --plk-coral: #ff9677;
    --plk-gold: #e8bd62;
    --plk-shadow: 0 18px 42px rgba(0, 0, 0, .5);
    --plk-shadow-sm: 0 3px 12px rgba(0, 0, 0, .34);
}
.plk-page {
    background: linear-gradient(135deg, transparent 0 48%, var(--plk-bg2) 48% 52%, transparent 52%) 0 0 / 40px 40px,
        radial-gradient(980px 420px at 90% -8%, var(--plk-bg2), transparent 62%), var(--plk-bg);
    color: var(--plk-ink); padding: 0 0 58px; min-height: 60vh;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 15px; line-height: 1.78;
}
.plk-wrap { max-width: 1160px; margin: 0 auto; padding: 18px 16px 0; }
.plk-page .detail-breadcrumb { font-size: 13px; color: var(--plk-sub); margin: 10px 0 18px; }
.plk-page .detail-breadcrumb a { color: var(--plk-sub); text-decoration: none; }
.plk-page .detail-breadcrumb a:hover { color: var(--plk-green); }
.plk-page .detail-breadcrumb .current { color: var(--plk-green); font-weight: 700; }
.plk-page .detail-breadcrumb .sep { margin: 0 8px; opacity: .55; }

.plk-hero { display: grid; grid-template-columns: 1.08fr .92fr; gap: 22px; align-items: stretch; margin-bottom: 20px; }
.plk-hero > * { min-width: 0; }
.plk-kicker { display: inline-block; font: 800 10.5px var(--plk-mono); letter-spacing: 1.8px; color: #fff; background: var(--plk-green); border-radius: 999px; padding: 6px 14px; margin-bottom: 15px; }
:root[data-theme="dark"] .plk-kicker { color: #082019; }
.plk-page h1 { font-size: 32px; line-height: 1.25; font-weight: 830; margin: 0 0 13px; letter-spacing: -.6px; }
.plk-sub { font-size: 14.5px; line-height: 1.98; color: var(--plk-sub); margin: 0 0 15px; }
.plk-sub b { color: var(--plk-ink); }
.plk-hero-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; margin-bottom: 15px; }
.plk-hero-facts > div { background: var(--plk-panel); border: 1px solid var(--plk-line2); border-radius: 8px; padding: 9px 11px; border-bottom: 4px solid var(--plk-lime); }
.plk-hero-facts b { display: block; font: 800 21px var(--plk-mono); }
.plk-hero-facts span { font-size: 11px; color: var(--plk-sub); }
.plk-hero-acts { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.plk-hero-tip { font-size: 11.5px; color: var(--plk-coral); }
.plk-btn {
    border: 1px solid var(--plk-line2); background: var(--plk-panel); color: var(--plk-ink);
    border-radius: 8px; padding: 10px 16px; font-size: 13.5px; font-weight: 720; cursor: pointer;
    font-family: inherit; transition: transform .12s, background .12s;
}
.plk-btn:hover { transform: translateY(-1px); border-color: var(--plk-green); }
.plk-btn--main { background: var(--plk-green); border-color: var(--plk-green-deep); color: #fff; box-shadow: 0 6px 18px rgba(28,92,67,.22); }
:root[data-theme="dark"] .plk-btn--main { color: #082019; }
.plk-btn-ai { border-color: var(--plk-lime); }
.plk-btn-ai:hover { background: var(--plk-lime-soft); }

.plk-timerbox { background: var(--plk-panel); border: 1px solid var(--plk-line2); border-radius: 14px; padding: 14px; box-shadow: var(--plk-shadow); display: flex; flex-direction: column; align-items: center; }
.plk-timerbox-head { width: 100%; display: flex; justify-content: space-between; font: 700 10.5px var(--plk-mono); letter-spacing: 1.4px; color: var(--plk-sub); border-bottom: 1px dashed var(--plk-line2); padding-bottom: 8px; }
.plk-timerbox-head b { color: var(--plk-green); }
.plk-ring { position: relative; width: 202px; height: 202px; margin: 14px auto; }
.plk-ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.plk-ring-bg, .plk-ring-fg { fill: none; stroke-width: 12; }
.plk-ring-bg { stroke: var(--plk-line); }
.plk-ring-fg { stroke: var(--plk-lime); stroke-linecap: round; stroke-dasharray: 527.8; stroke-dashoffset: 0; transition: stroke-dashoffset .9s linear; }
.plk-ring-core { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.plk-ring-core b { font: 850 48px/1 var(--plk-mono); letter-spacing: -2px; }
.plk-ring-core span { font-size: 12px; color: var(--plk-sub); }
.plk-ring-core em { font-style: normal; font: 600 11px var(--plk-mono); color: var(--plk-green); margin-top: 6px; }
.plk-timer-acts { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; margin-top: auto; }

.plk-body { display: grid; grid-template-columns: 288px 1fr; gap: 20px; align-items: start; }
.plk-body > * { min-width: 0; }
.plk-panel { background: var(--plk-panel); border: 1px solid var(--plk-line2); border-radius: 12px; padding: 18px; box-shadow: var(--plk-shadow-sm); position: sticky; top: 14px; }
.plk-panel h2, .plk-main h2 { font-size: 18px; margin: 0 0 4px; letter-spacing: -.2px; }
.plk-hint { font-size: 12.5px; color: var(--plk-sub); margin: 0 0 16px; line-height: 1.7; }
.plk-field { margin-bottom: 15px; }
.plk-label { display: flex; justify-content: space-between; gap: 8px; font-size: 13px; font-weight: 700; margin-bottom: 7px; }
.plk-label em { font-style: normal; font: 500 11px var(--plk-mono); color: var(--plk-sub); text-align: right; }
.plk-inline { display: flex; align-items: center; gap: 8px; }
.plk-input { width: 100%; box-sizing: border-box; border: 1px solid var(--plk-line2); background: var(--plk-panel2); color: var(--plk-ink); border-radius: 7px; padding: 9px 11px; font: 700 14px var(--plk-mono); outline: none; }
.plk-input:focus { border-color: var(--plk-green); }
.plk-unit { font: 600 12px var(--plk-mono); color: var(--plk-sub); }
.plk-seg { display: flex; flex-wrap: wrap; gap: 5px; }
.plk-seg button { flex: 1; min-width: 60px; border: 1px solid var(--plk-line2); background: var(--plk-panel2); color: var(--plk-sub); border-radius: 7px; padding: 7px 3px; font: 600 12px var(--plk-mono); cursor: pointer; font-family: var(--plk-mono); }
.plk-seg button.is-on { background: var(--plk-green); color: #fff; border-color: var(--plk-green-deep); }
:root[data-theme="dark"] .plk-seg button.is-on { color: #082019; }
.plk-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.plk-actions .plk-btn--main { grid-column: 1 / -1; }
.plk-actions--row { display: flex; flex-wrap: wrap; margin: 12px 0; }
.plk-err { color: var(--plk-coral); font-size: 12.5px; margin: 10px 0 0; }
.plk-err[hidden] { display: none; }
.plk-ai { margin-top: 14px; border-top: 1px dashed var(--plk-line2); padding-top: 12px; }
.plk-ai-status { font-size: 11.5px; line-height: 1.7; color: var(--plk-sub); margin: 0 0 6px; }
.plk-ai-box { font-size: 12.5px; line-height: 1.8; }
.plk-ai-box p { margin: 4px 0; }
.plk-main { display: flex; flex-direction: column; gap: 18px; }
.plk-stats, .plk-calendar, .plk-plan, .plk-weeks, .plk-batch { background: var(--plk-panel); border: 1px solid var(--plk-line2); border-radius: 12px; padding: 18px; box-shadow: var(--plk-shadow-sm); }
.plk-kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(172px, 1fr)); gap: 10px; margin-top: 14px; }
.plk-kpi { background: var(--plk-panel2); border: 1px solid var(--plk-line); border-left: 4px solid var(--plk-green); border-radius: 7px; padding: 10px 12px; }
.plk-kpi.is-warn { border-left-color: var(--plk-coral); }
.plk-kpi span { display: block; font-size: 11.5px; color: var(--plk-sub); }
.plk-kpi b { display: block; font: 800 19px/1.4 var(--plk-mono); }
.plk-kpi em { display: block; font-style: normal; font-size: 11px; line-height: 1.65; color: var(--plk-sub); }
.plk-section-head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.plk-section-head span { font: 600 11.5px var(--plk-mono); color: var(--plk-sub); }
.plk-cal { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; margin-top: 14px; }
.plk-day { aspect-ratio: 1 / 1; border: 1px solid var(--plk-line2); border-radius: 7px; background: var(--plk-panel2); display: flex; flex-direction: column; align-items: center; justify-content: center; font: 700 12px var(--plk-mono); color: var(--plk-sub); cursor: pointer; }
.plk-day small { font-size: 9px; font-weight: 500; }
.plk-day.is-rest { border-style: dashed; opacity: .72; }
.plk-day.is-done { background: var(--plk-lime); border-color: var(--plk-green); color: var(--plk-green-deep); }
:root[data-theme="dark"] .plk-day.is-done { color: #10200b; }
.plk-day.is-today { outline: 2px solid var(--plk-green); outline-offset: 1px; }
.plk-scroll { overflow-x: auto; margin-top: 12px; }
.plk-table { width: 100%; border-collapse: collapse; font-size: 12.5px; min-width: 620px; }
.plk-table th { text-align: left; font: 700 10.5px var(--plk-mono); letter-spacing: .5px; color: var(--plk-sub); border-bottom: 2px solid var(--plk-line2); padding: 8px 9px; }
.plk-table td { border-bottom: 1px solid var(--plk-line); padding: 8px 9px; font-family: var(--plk-mono); }
.plk-table tbody tr { cursor: pointer; }
.plk-table tbody tr:hover { background: var(--plk-panel2); }
.plk-table tbody tr.is-rest { color: var(--plk-sub); }
.plk-table tbody tr.is-pick { background: var(--plk-lime-soft); }
.plk-pill { display: inline-block; padding: 1px 7px; border-radius: 99px; font: 700 10.5px var(--plk-mono); }
.plk-pill.is-train { background: rgba(28,92,67,.13); color: var(--plk-green); }
.plk-pill.is-rest { background: rgba(201,138,24,.15); color: var(--plk-gold); }
.plk-week-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; margin-top: 14px; }
.plk-week { background: var(--plk-panel2); border: 1px solid var(--plk-line); border-radius: 8px; padding: 11px 12px; }
.plk-week b { font: 800 14px var(--plk-mono); }
.plk-week-bar { height: 8px; border-radius: 99px; background: var(--plk-line); overflow: hidden; margin: 8px 0 5px; }
.plk-week-bar i { display: block; height: 100%; background: var(--plk-lime); }
.plk-week span { font-size: 11px; color: var(--plk-sub); }
.plk-mini { border: 0; background: transparent; color: var(--plk-coral); cursor: pointer; font-size: 12px; }

.plk-modal[hidden] { display: none !important; }
.plk-modal { position: fixed; inset: 0; z-index: 9999; display: flex; align-items: center; justify-content: center; padding: 18px; background: rgba(9, 25, 16, .6); }
.plk-sheet { width: min(530px, 100%); max-height: 86vh; overflow: auto; background: var(--plk-panel); border: 1px solid var(--plk-line2); border-radius: 12px; padding: 20px; box-shadow: var(--plk-shadow); }
.plk-sheet-head { display: flex; justify-content: space-between; align-items: center; border-bottom: 3px solid var(--plk-lime); padding-bottom: 10px; margin-bottom: 12px; }
.plk-sheet-head b { font: 800 12.5px var(--plk-mono); letter-spacing: .6px; }
.plk-modal-x { border: 0; background: transparent; color: var(--plk-sub); font-size: 24px; line-height: 1; cursor: pointer; }
.plk-sheet p { font-size: 13.5px; line-height: 1.9; margin: 6px 0; }
.plk-sheet-acts { margin-top: 16px; text-align: right; }
.plk-toast { position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%) translateY(18px); z-index: 10000; background: var(--plk-ink); color: var(--plk-panel); padding: 9px 18px; border-radius: 99px; font: 600 13px var(--plk-mono); opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; }
.plk-toast.is-on { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (max-width: 980px) {
    .plk-hero, .plk-body { grid-template-columns: 1fr; }
    .plk-panel { position: static; }
    .plk-page h1 { font-size: 27px; }
}
@media (max-width: 560px) {
    .plk-wrap { padding: 12px 10px 0; }
    .plk-hero-facts { gap: 5px; }
    .plk-hero-facts b { font-size: 16px; }
    .plk-cal { gap: 4px; }
    .plk-day { font-size: 10px; }
    .plk-table { min-width: 580px; }
}