:root{
  --bg:#0f1216; --card:#171c22; --card2:#1e242c; --line:#2a323c;
  --txt:#e7edf3; --muted:#8a97a6; --accent:#3ddc97; --accent2:#2bb3 ;
  --accent2:#39a0ff; --warn:#ffb454; --danger:#ff5d6c;
  --r:16px;
}
*{box-sizing:border-box}
/* The hidden attribute must win over display:flex/grid rules below. */
[hidden]{display:none!important}
html,body{margin:0;background:var(--bg);color:var(--txt);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  -webkit-tap-highlight-color:transparent}
body{max-width:520px;margin:0 auto;padding:0 14px env(safe-area-inset-bottom)}

/* auth screen */
.authscreen{position:fixed;inset:0;background:var(--bg);display:flex;align-items:center;
  justify-content:center;padding:24px;z-index:40}
.auth-card{width:100%;max-width:360px;text-align:center}
.auth-logo{font-size:46px}
.auth-title{font-size:22px;margin:6px 0 18px}
.auth-form{display:flex;flex-direction:column;gap:10px;text-align:left}
.auth-form input{background:var(--card2);border:1px solid var(--line);color:var(--txt);
  padding:13px 14px;border-radius:12px;font-size:16px;outline:none}
.auth-form input:focus{border-color:var(--accent2)}
.auth-form .chip.primary{flex:none;margin-top:4px;padding:13px}
.auth-msg{color:var(--danger);font-size:13px;min-height:18px;margin:2px 0 0;text-align:center}

.namebtn{background:none;border:none;color:var(--txt);font-size:16px;font-weight:650;
  cursor:pointer;padding:6px 4px;border-radius:8px;text-decoration:underline dotted;text-underline-offset:3px}
.namebtn:active{background:var(--card2)}
.people-meta{color:var(--muted);font-size:12px}
.people-act{background:var(--card2);border:1px solid var(--line);color:var(--txt);
  border-radius:9px;padding:5px 9px;font-size:12px;cursor:pointer;margin-left:5px}

.profilebar{display:flex;align-items:center;gap:8px;padding:14px 4px 0}
.profilebar .who{font-size:18px}
.profilebar .chip{flex:0 0 auto;min-width:0;padding:9px 12px}
.select{flex:1;background:var(--card2);border:1px solid var(--line);color:var(--txt);
  padding:11px 12px;border-radius:12px;font-size:15px;outline:none;
  -webkit-appearance:none;appearance:none;cursor:pointer;
  background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);
  background-position:calc(100% - 18px) 50%,calc(100% - 13px) 50%;background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:34px}
.select:focus{border-color:var(--accent2)}
.select.wide{width:100%;margin-bottom:10px}

.topbar{display:flex;align-items:center;justify-content:space-between;
  padding:12px 4px 8px;position:sticky;top:0;background:linear-gradient(var(--bg),var(--bg) 70%,transparent);z-index:5}
.datewrap{text-align:center}
.topbar h1{font-size:18px;margin:0;font-weight:650}
.sub{color:var(--muted);font-size:12px}
.navbtn{background:var(--card);border:1px solid var(--line);color:var(--txt);
  width:40px;height:40px;border-radius:12px;font-size:22px;cursor:pointer}
.navbtn:active{background:var(--card2)}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:16px;margin:12px 0}
.section-title{font-size:14px;margin:0 0 10px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}

/* dial */
.ring{position:relative;width:200px;height:200px;margin:4px auto}
.dial{width:200px;height:200px;transform:rotate(-90deg)}
.dial-bg{fill:none;stroke:var(--card2);stroke-width:10}
.dial-fg{fill:none;stroke:var(--accent);stroke-width:10;stroke-linecap:round;
  stroke-dasharray:327;stroke-dashoffset:327;transition:stroke-dashoffset .5s ease,stroke .3s}
.ring-center{position:absolute;inset:0;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:2px}
.big{font-size:34px;font-weight:720;line-height:1}
.unit{color:var(--muted);font-size:13px}
.balance{display:flex;justify-content:center;gap:20px;margin-top:12px;font-size:14px;color:var(--muted)}
.balance b{color:var(--txt);font-weight:650}
.goal-edit{background:none;border:none;color:var(--muted);font-size:12px;cursor:pointer;
  padding:2px 6px;border-radius:8px;text-decoration:underline dotted;text-underline-offset:3px}
.goal-edit:active{background:var(--card2)}

/* water */
.water-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.water .label{font-size:15px}
.water .big{font-size:24px}

.btnrow{display:flex;gap:8px;flex-wrap:wrap}
.chip{background:var(--card2);border:1px solid var(--line);color:var(--txt);
  padding:11px 14px;border-radius:12px;font-size:14px;cursor:pointer;flex:1;min-width:64px}
.chip:active{transform:scale(.97)}
.chip.ghost{background:transparent;color:var(--muted)}
.chip.primary{background:var(--accent);color:#06281c;border-color:var(--accent);font-weight:650}
.chip.minus{color:var(--accent2);border-color:var(--accent2)}

.addrow{display:flex;gap:8px;margin-bottom:10px}
#search{flex:1;background:var(--card2);border:1px solid var(--line);color:var(--txt);
  padding:12px 14px;border-radius:12px;font-size:15px;outline:none}
#search:focus{border-color:var(--accent2)}
.addrow .chip{flex:0 0 auto;min-width:0}

.picker{list-style:none;margin:0;padding:0;max-height:280px;overflow:auto}
.picker li{display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 6px;border-bottom:1px solid var(--line);cursor:pointer}
.picker li:active{background:var(--card2)}
.picker .nm{font-size:14px}
.picker .src{color:var(--muted);font-size:12px}
.picker .kj{color:var(--accent);font-size:13px;white-space:nowrap}
.est{color:var(--warn);font-size:11px;margin-left:5px}
.edit-food{background:none;border:none;color:var(--muted);font-size:15px;cursor:pointer;padding:4px 6px;border-radius:8px}
.edit-food:active{background:var(--card2)}

.entries{list-style:none;margin:0;padding:0}
.entries li{display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 4px;border-bottom:1px solid var(--line)}
.entries .nm{font-size:14px}
.entries .meta{color:var(--muted);font-size:12px}
.entries .kj{color:var(--txt);font-size:14px;font-weight:600;white-space:nowrap}
.rowend{display:flex;align-items:center;gap:6px}
.del{background:none;border:none;color:var(--danger);font-size:18px;cursor:pointer;padding:4px 8px}
.muted{color:var(--muted);font-size:13px;text-align:center;padding:6px}
.hidden{display:none!important}

/* sheet */
.sheet{position:fixed;inset:0;background:rgba(0,0,0,.55);display:flex;align-items:flex-end;
  justify-content:center;z-index:20}
.sheet-card{background:var(--card);border:1px solid var(--line);border-radius:20px 20px 0 0;
  width:100%;max-width:520px;padding:20px 18px calc(20px + env(safe-area-inset-bottom))}
.sheet-card h3{margin:0 0 2px}
.qtyrow{display:flex;align-items:center;gap:12px;justify-content:center;margin:18px 0 6px}
.qtybtn{width:52px;height:52px;border-radius:14px;font-size:26px;background:var(--card2);
  border:1px solid var(--line);color:var(--txt);cursor:pointer}
#qty{width:90px;text-align:center;font-size:24px;background:var(--card2);
  border:1px solid var(--line);color:var(--txt);border-radius:12px;padding:10px}
.center{text-align:center}

/* settings form */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:12px 0}
.form-grid label{display:flex;flex-direction:column;gap:4px;font-size:12px;color:var(--muted)}
.form-grid input,.form-grid select{background:var(--card2);border:1px solid var(--line);color:var(--txt);
  padding:10px;border-radius:10px;font-size:15px;outline:none;-webkit-appearance:none;appearance:none}
.form-grid input:focus,.form-grid select:focus{border-color:var(--accent2)}

/* achievements */
.badges{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:8px 0 12px}
.badge{background:var(--card2);border:1px solid var(--line);border-radius:14px;padding:12px 10px;text-align:center;opacity:.55}
.badge.earned{opacity:1;border-color:var(--accent)}
.badge-ic{font-size:30px;line-height:1}
.badge:not(.earned) .badge-ic{filter:grayscale(1)}
.badge-nm{font-weight:650;font-size:13px;margin-top:5px}
.badge-ds{color:var(--muted);font-size:11px;margin-top:2px}
.badge-done{color:var(--accent);font-size:11px;margin-top:6px;font-weight:600}
.badge-bar{height:5px;background:var(--bg);border-radius:3px;margin-top:8px;overflow:hidden}
.badge-bar span{display:block;height:100%;background:var(--accent2)}

/* history */
.streak{text-align:center;font-size:16px;font-weight:650;margin:6px 0 10px;
  padding:10px;border-radius:12px;background:var(--card2);border:1px solid var(--line)}
.histchart{width:100%;height:120px;display:block;margin-bottom:10px}
.histchart .bar-ok{fill:var(--accent)}
.histchart .bar-over{fill:var(--danger)}
.histchart .zero{stroke:var(--line);stroke-width:1}
.histchart .goal{stroke:var(--warn);stroke-width:1;stroke-dasharray:3 3}

/* weight sparkline */
.spark{width:100%;height:56px;margin:6px 0 2px;display:block}
.spark polyline{fill:none;stroke:var(--accent2);stroke-width:2;vector-effect:non-scaling-stroke}
.spark .goal-line{stroke:var(--accent);stroke-width:1;stroke-dasharray:4 4;vector-effect:non-scaling-stroke}

.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);
  background:var(--card2);border:1px solid var(--line);color:var(--txt);
  padding:11px 16px;border-radius:12px;font-size:14px;z-index:30;box-shadow:0 6px 24px rgba(0,0,0,.4)}