:root{
  --bg:#f6f4ec; --surface:#fff; --surface-2:#f0efe6;
  --ink:#2b2f2c; --muted:#7c837b; --line:#e7e5da;
  --green:#587e63; --green-2:#6fa07f; --green-soft:#e7efe6;
  --warm:#d98b5f; --gold:#c9a24b;
  --radius:20px; --radius-sm:13px; --shadow:0 2px 14px rgba(60,70,55,.07);
  --safe-b:env(safe-area-inset-bottom,0px);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",sans-serif;
  background:var(--bg); color:var(--ink); line-height:1.45;
  -webkit-font-smoothing:antialiased;
}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
a{color:var(--green);text-decoration:none}
input,select,textarea{font-family:inherit;font-size:16px}

/* ---------- app frame ---------- */
#app{max-width:520px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column}
.topbar{
  position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;
  padding:14px 18px calc(14px);background:rgba(246,244,236,.85);backdrop-filter:saturate(1.4) blur(10px);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:9px;font-weight:700;font-size:19px;letter-spacing:.2px}
.brand .mark{color:var(--green);font-size:15px}
.ghost{color:var(--muted);font-size:20px;padding:6px;border-radius:10px}
#view{flex:1;padding:18px 16px 96px;overflow-y:auto}
.loading{color:var(--muted);text-align:center;padding:60px 0}

/* ---------- tab bar ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:30;max-width:520px;margin:0 auto;
  display:grid;grid-template-columns:repeat(4,1fr);gap:4px;
  padding:8px 12px calc(8px + var(--safe-b));background:rgba(255,255,255,.9);
  backdrop-filter:blur(12px);border-top:1px solid var(--line);
}
.tabbar button{display:flex;flex-direction:column;align-items:center;gap:2px;font-size:11px;font-weight:600;color:var(--muted);padding:6px 0;border-radius:12px}
.tabbar button span{font-size:19px;line-height:1}
.tabbar button.active{color:var(--green)}

/* ---------- cards ---------- */
.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;margin-bottom:14px}
.card h2{margin:0 0 4px;font-size:13px;text-transform:uppercase;letter-spacing:.8px;color:var(--muted)}
.card h3{margin:0 0 10px;font-size:18px}
.section-label{font-size:12px;text-transform:uppercase;letter-spacing:.9px;color:var(--muted);margin:22px 4px 10px;font-weight:700}

/* coach hero */
.coach{background:linear-gradient(135deg,#5c8468,#78a486);color:#fff;border:none}
.coach h2{color:rgba(255,255,255,.75)}
.coach .msg{font-size:17px;line-height:1.5;margin:2px 0 0}
.coach .focus{margin-top:12px;padding-top:12px;border-top:1px solid rgba(255,255,255,.22);font-size:14px;opacity:.95}

/* today hero */
.dayhero{display:flex;align-items:center;gap:14px}
.dayhero .em{font-size:34px}
.dayhero .t{font-size:22px;font-weight:700}
.dayhero .s{color:var(--muted);font-size:14px}
.pill{display:inline-block;background:var(--green-soft);color:var(--green);font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px}

/* exercise rows */
.ex{border:1px solid var(--line);border-radius:var(--radius-sm);padding:13px 14px;margin-bottom:10px}
.ex .row1{display:flex;justify-content:space-between;align-items:baseline;gap:8px}
.ex .nm{font-weight:650;font-size:16px}
.ex .sr{font-size:13px;color:var(--muted);white-space:nowrap}
.ex .cue{font-size:13px;color:var(--muted);margin:4px 0 0}
.ex .vid{font-size:13px;font-weight:600}
.ex .last{font-size:12px;color:var(--green);margin-top:6px}
.ex .inputs{display:flex;gap:8px;margin-top:10px}
.ex .inputs label{flex:1;font-size:11px;color:var(--muted)}
.ex .inputs input{width:100%;margin-top:3px;padding:9px 11px;border:1px solid var(--line);border-radius:10px;background:var(--surface-2)}

/* generic input row */
.field{margin-bottom:12px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:5px}
.field .help{font-size:12px;font-weight:500;color:var(--green);margin-left:8px}
.field .inp{display:flex;align-items:center;gap:8px}
.field input{flex:1;padding:12px 13px;border:1px solid var(--line);border-radius:12px;background:var(--surface-2)}
.field .unit{color:var(--muted);font-size:14px;min-width:26px}
.field .cur{font-size:12px;color:var(--muted);margin-top:4px}

.btn{display:block;width:100%;background:var(--green);color:#fff;font-weight:700;font-size:16px;padding:14px;border-radius:14px;margin-top:6px;transition:transform .06s,filter .15s}
.btn:active{transform:scale(.99);filter:brightness(1.05)}
.btn.sec{background:var(--surface-2);color:var(--ink)}
.btn.tiny{width:auto;padding:9px 14px;font-size:14px;display:inline-block}

.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{border:1px solid var(--line);background:var(--surface-2);border-radius:999px;padding:9px 15px;font-size:14px;font-weight:600}
.chip.on{background:var(--green);color:#fff;border-color:var(--green)}

.empty{text-align:center;color:var(--muted);padding:30px 16px}
.empty .em{font-size:40px;display:block;margin-bottom:8px}

/* progress */
.stat{display:flex;align-items:baseline;gap:8px}
.stat .big{font-size:30px;font-weight:750;color:var(--green)}
.stat .lbl{color:var(--muted);font-size:13px}
.spark{width:100%;height:56px;margin-top:8px}
.spark path{fill:none;stroke:var(--green);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
.spark circle{fill:var(--green)}
.trend{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin-top:2px}
.moods{display:flex;gap:10px;justify-content:space-between}
.moodbtn{flex:1;font-size:26px;padding:9px 0;border:1px solid var(--line);border-radius:14px;background:var(--surface-2);transition:transform .06s}
.moodbtn.on{background:var(--green-soft);border-color:var(--green);transform:scale(1.06)}
.planrow{display:flex;align-items:center;gap:12px;padding:11px 10px}
.planrow .pd{width:36px;font-weight:700;color:var(--muted);font-size:13px}
.planrow .pe{font-size:18px}
.planrow .pt{flex:1;font-weight:600}
.weekdots{display:flex;gap:7px;margin-top:10px}
.weekdots .d{flex:1;text-align:center;font-size:11px;color:var(--muted)}
.weekdots .dot{height:30px;border-radius:9px;background:var(--surface-2);display:flex;align-items:center;justify-content:center;margin-bottom:4px;font-size:14px}
.weekdots .dot.done{background:var(--green);color:#fff}
.weekdots .dot.walk{background:var(--green-soft);color:var(--green)}

/* login */
.login-body{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:24px;background:linear-gradient(160deg,#eef2ea,#f6f4ec)}
.loginbox{background:var(--surface);border-radius:26px;box-shadow:var(--shadow);padding:34px 26px;width:100%;max-width:340px;text-align:center}
.loginbox .logo{width:58px;height:58px;margin:0 auto 10px;border-radius:18px;background:var(--green-soft);color:var(--green);display:flex;align-items:center;justify-content:center;font-size:24px}
.loginbox h1{margin:0;font-size:26px}
.loginbox .sub{color:var(--muted);margin:4px 0 22px;font-size:14px}
.loginbox input{width:100%;padding:14px;border:1px solid var(--line);border-radius:13px;background:var(--surface-2);margin-bottom:11px}
.loginbox button{width:100%;background:var(--green);color:#fff;font-weight:700;font-size:16px;padding:14px;border-radius:13px}
.loginbox .err{color:#c0492f;font-size:13px;margin-top:10px;min-height:16px}

.toast{position:fixed;left:50%;bottom:calc(84px + var(--safe-b));transform:translateX(-50%) translateY(20px);
  background:var(--ink);color:#fff;padding:11px 18px;border-radius:999px;font-size:14px;font-weight:600;
  opacity:0;pointer-events:none;transition:all .25s;z-index:50;max-width:90%}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}