/* ═══ 习惯锚点 · 设计系统 ═══
   铁律：简洁高效 · 图标符号优先于文字按钮 · 信息密度合理 · 触控热区≥48px
   暗色主题：#0f1115 底 + 低饱和强调色，长时间看不累
*/
:root{
  --bg:#0f1115; --card:#181b21; --card2:#1f232b; --line:#2a2f39;
  --tx:#e8eaed; --tx2:#9aa3af; --tx3:#6b7280;
  --ok:#34d399; --warn:#fbbf24; --bad:#f87171; --info:#60a5fa;
  --r:16px; --r-sm:10px; --tap:48px;
  --safe-t:env(safe-area-inset-top,0px); --safe-b:env(safe-area-inset-bottom,0px);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--tx); font-size:16px; line-height:1.55;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  padding-bottom:calc(84px + var(--safe-b)); min-height:100vh;
  overflow-x:hidden;
}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
.hidden{display:none !important}

/* ══ 顶部 ══ */
.top{position:sticky;top:0;z-index:20;background:rgba(15,17,21,.92);
  backdrop-filter:blur(12px);padding:calc(14px + var(--safe-t)) 18px 10px;
  border-bottom:1px solid var(--line)}
.top-row{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.date{font-size:20px;font-weight:650;letter-spacing:.3px}
.progress{font-size:13px;color:var(--tx2);margin-top:2px}
.top-actions{display:flex;gap:4px}
.icon-btn{width:var(--tap);height:var(--tap);border-radius:12px;font-size:20px;
  display:flex;align-items:center;justify-content:center;color:var(--tx2);
  transition:background .15s,transform .1s}
.icon-btn:active{background:var(--card2);transform:scale(.92)}
.icon-btn.sm{width:36px;height:36px;font-size:16px}
.progressbar{height:3px;background:var(--line);border-radius:2px;margin-top:11px;overflow:hidden}
#progressFill{height:100%;width:0;border-radius:2px;
  background:linear-gradient(90deg,var(--ok),#4ade80);transition:width .35s cubic-bezier(.4,0,.2,1)}

/* ══ 习惯卡片 ══ */
.list{padding:14px 14px 0;display:flex;flex-direction:column;gap:10px}
.habit{background:var(--card);border-radius:var(--r);padding:14px;
  border:1px solid var(--line);transition:border-color .2s,background .2s}
.habit.done{background:linear-gradient(135deg,#15241c,#181b21);border-color:#1f4433}
.habit.rest{background:#1b1a18;border-color:#443a20}
.h-row{display:flex;align-items:center;gap:12px}
.h-icon{font-size:26px;width:44px;height:44px;flex:0 0 44px;border-radius:12px;
  background:var(--card2);display:flex;align-items:center;justify-content:center}
.h-main{flex:1;min-width:0}
.h-name{font-size:16.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.h-meta{font-size:12.5px;color:var(--tx3);margin-top:2px;display:flex;gap:8px;align-items:center}
.h-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--tx3)}

/* 强度环 */
.ring{position:relative;width:44px;height:44px;flex:0 0 44px}
.ring svg{transform:rotate(-90deg)}
.ring circle{fill:none;stroke-width:3.5;stroke-linecap:round}
.ring .bg{stroke:var(--line)}
.ring .fg{stroke:var(--ok);transition:stroke-dasharray .5s}
.ring-txt{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:11px;font-weight:700;color:var(--tx2)}

/* 主按钮：大点击区 */
.h-act{display:flex;gap:8px;margin-top:12px}
.btn-check{flex:1;height:var(--tap);border-radius:12px;background:var(--card2);
  color:var(--tx);font-size:15px;font-weight:600;display:flex;align-items:center;
  justify-content:center;gap:7px;transition:transform .1s,background .2s}
.btn-check:active{transform:scale(.97)}
.habit.done .btn-check{background:rgba(52,211,153,.13);color:var(--ok)}
.btn-rest{width:var(--tap);height:var(--tap);border-radius:12px;background:var(--card2);
  font-size:17px;color:var(--tx3);display:flex;align-items:center;justify-content:center}
.btn-rest:active{transform:scale(.94)}

/* 计数型 */
.counter{display:flex;align-items:center;gap:14px;margin-top:12px}
.c-btn{width:46px;height:46px;border-radius:13px;background:var(--card2);font-size:22px;
  color:var(--tx2);display:flex;align-items:center;justify-content:center}
.c-btn:active{transform:scale(.92)}
.c-num{flex:1;text-align:center;font-size:19px;font-weight:700;letter-spacing:.5px}
.c-num small{font-size:12px;color:var(--tx3);font-weight:400}

/* ══ 面板 ══ */
.panel{margin:12px 14px 0;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r);padding:14px;animation:slideUp .22s cubic-bezier(.4,0,.2,1)}
.panel.wide{position:fixed;inset:auto 0 0;max-height:82vh;overflow-y:auto;
  border-radius:20px 20px 0 0;border-bottom:none;z-index:40;
  padding-bottom:calc(18px + var(--safe-b))}
@keyframes slideUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.panel-head{display:flex;align-items:center;gap:10px;margin-bottom:11px}
.panel-head h3{margin:0;font-size:15.5px;font-weight:650;flex:1}
.panel-head .icon-btn{margin:-8px -8px -8px 0}

/* 健康三态 */
.health-grid{display:flex;flex-direction:column;gap:11px}
.h-item{display:flex;align-items:center;gap:11px}
.h-item b{display:block;font-size:13.5px;font-weight:600}
.h-item small{display:block;font-size:12px;color:var(--tx3);margin-top:1px}
.h-dot{width:9px;height:9px;border-radius:50%;flex:0 0 9px;background:var(--tx3)}
.h-dot.ok{background:var(--ok);box-shadow:0 0 0 3px rgba(52,211,153,.14)}
.h-dot.warn{background:var(--warn);box-shadow:0 0 0 3px rgba(251,191,36,.14)}
.h-dot.bad{background:var(--bad);box-shadow:0 0 0 3px rgba(248,113,113,.14)}
.btn-test{width:100%;height:var(--tap);margin-top:14px;border-radius:12px;
  background:rgba(96,165,250,.11);color:var(--info);font-size:14.5px;font-weight:600}
.hint{font-size:11.5px;color:var(--tx3);margin:9px 0 0;text-align:center}

/* 建议 */
.tip{background:linear-gradient(135deg,#1a1d26,#181b21)}
.tip-text{margin:0;font-size:14.5px;line-height:1.6;color:var(--tx)}

/* ══ 复盘 ══ */
.seg{display:flex;gap:3px;background:var(--card2);border-radius:10px;padding:3px}
.seg button{flex:1;height:34px;border-radius:8px;font-size:13.5px;color:var(--tx3);font-weight:500}
.seg button.on{background:var(--bg);color:var(--tx)}
.headline{font-size:16px;font-weight:600;line-height:1.6;margin:0 0 14px;
  padding:13px;border-radius:12px;background:var(--card2);border-left:3px solid var(--info)}
.sug{padding:13px 0;border-top:1px solid var(--line);display:flex;gap:11px}
.sug:first-of-type{border-top:none}
.sug-ico{font-size:17px;flex:0 0 auto;margin-top:1px}
.sug-b{flex:1;min-width:0}
.sug-t{font-size:14.5px;line-height:1.6}
.sug-basis{font-size:11.5px;color:var(--tx3);margin-top:4px}
.sug-no{background:none;color:var(--tx3);font-size:12px;padding:4px 8px;border-radius:8px;align-self:flex-start}
.sug-no:active{background:var(--card2);color:var(--bad)}
.badge{display:inline-block;font-size:10.5px;padding:2px 7px;border-radius:20px;
  background:var(--card2);color:var(--tx3);margin-left:6px;vertical-align:middle}
.badge.ai{background:rgba(96,165,250,.14);color:var(--info)}
.stats-mini{display:flex;gap:8px;margin:14px 0;flex-wrap:wrap}
.sm-card{flex:1;min-width:74px;background:var(--card2);border-radius:11px;padding:11px;text-align:center}
.sm-card b{display:block;font-size:19px;font-weight:700}
.sm-card small{display:block;font-size:11px;color:var(--tx3);margin-top:2px}

/* ══ 设置 ══ */
.settings{display:flex;flex-direction:column}
.set-row{display:flex;align-items:center;gap:9px;padding:13px 0;border-bottom:1px solid var(--line);font-size:14px}
.set-row:last-child{border-bottom:none}
.set-row>span:first-child{flex:1;color:var(--tx)}
.set-row small{color:var(--tx3);font-size:12.5px}
.btn-ghost{height:38px;padding:0 15px;border-radius:10px;background:var(--card2);
  color:var(--tx2);font-size:13.5px;font-weight:500}
.btn-ghost:active{transform:scale(.96)}
.btn-ghost.sm{height:32px;padding:0 12px;font-size:12.5px}
.btn-primary{height:var(--tap);padding:0 22px;border-radius:12px;
  background:var(--info);color:#08131f;font-size:15px;font-weight:650}
.btn-primary:active{transform:scale(.97)}

/* ══ FAB ══ */
.fab{position:fixed;right:18px;bottom:calc(20px + var(--safe-b));width:58px;height:58px;
  border-radius:19px;background:var(--info);color:#08131f;font-size:29px;font-weight:300;
  display:flex;align-items:center;justify-content:center;z-index:30;
  box-shadow:0 8px 26px rgba(96,165,250,.32);transition:transform .12s}
.fab:active{transform:scale(.9)}

/* ══ 模态 ══ */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.62);z-index:50;
  display:flex;align-items:flex-end;justify-content:center;animation:fade .18s}
@keyframes fade{from{opacity:0}to{opacity:1}}
.modal-card{background:var(--card);width:100%;max-width:520px;border-radius:22px 22px 0 0;
  padding:18px 18px calc(18px + var(--safe-b));max-height:90vh;overflow-y:auto;
  animation:slideUp .24s cubic-bezier(.4,0,.2,1)}
.form{display:flex;flex-direction:column;gap:13px}
.icons{display:flex;gap:7px;flex-wrap:wrap}
.icons button{width:42px;height:42px;border-radius:11px;background:var(--card2);font-size:20px;
  display:flex;align-items:center;justify-content:center}
.icons button.on{background:rgba(96,165,250,.16);outline:1.5px solid var(--info)}
.f-input{width:100%;height:var(--tap);padding:0 14px;border-radius:12px;
  background:var(--card2);border:1px solid var(--line);color:var(--tx);font-size:15.5px}
.f-input::placeholder{color:var(--tx3)}
.f-input:focus{outline:none;border-color:var(--info)}
.f-input.sm{width:130px;text-align:center}
.f-row{display:flex;align-items:center;gap:11px}
.f-row.seg{padding:0;background:none;border-radius:0}
.f-label{font-size:14px;color:var(--tx2);flex:1}
.stepper{display:flex;align-items:center;gap:13px;background:var(--card2);
  border-radius:11px;padding:5px 9px}
.stepper button{width:34px;height:34px;border-radius:8px;background:var(--bg);
  font-size:18px;color:var(--tx2);display:flex;align-items:center;justify-content:center}
.stepper b{min-width:24px;text-align:center;font-size:16px}
.wd-pick{display:flex;gap:5px}
.wd-pick button{width:36px;height:36px;border-radius:10px;background:var(--card2);
  font-size:12.5px;color:var(--tx3)}
.wd-pick button.on{background:rgba(96,165,250,.16);color:var(--info)}
.modal-actions{display:flex;gap:10px;margin-top:18px}
.modal-actions button{flex:1}

/* ══ 首次引导 ══ */
.onboard{position:fixed;inset:0;background:var(--bg);z-index:100;
  display:flex;align-items:center;justify-content:center;padding:26px}
.onb-card{max-width:340px;text-align:center;animation:slideUp .3s}
.onb-step{display:flex;gap:5px;justify-content:center;margin-bottom:30px}
.onb-step i{width:6px;height:6px;border-radius:50%;background:var(--line)}
.onb-step i.on{background:var(--info);width:18px;border-radius:3px}
.onb-icon{font-size:60px;margin-bottom:22px}
.onb-card h2{font-size:21px;font-weight:650;margin:0 0 12px}
.onb-card p{font-size:14.5px;color:var(--tx2);line-height:1.7;margin:0 0 30px;min-height:72px}
.onb-actions{display:flex;gap:10px}
.onb-actions button{flex:1}

/* ══ Toast ══ */
.toast{position:fixed;left:50%;bottom:calc(96px + var(--safe-b));transform:translateX(-50%);
  background:var(--card2);border:1px solid var(--line);color:var(--tx);
  padding:12px 20px;border-radius:13px;font-size:14px;z-index:60;
  animation:slideUp .2s;max-width:86vw;text-align:center}

/* ══ 空态 ══ */
.empty{text-align:center;padding:56px 26px;color:var(--tx3)}
.empty-ico{font-size:46px;margin-bottom:14px;opacity:.65}
.empty p{font-size:14px;margin:0 0 20px;line-height:1.6}

@media (prefers-reduced-motion:reduce){*{animation:none !important;transition:none !important}}