:root{
  --bg0:#070a16; --bg1:#0e1426; --card:#161d36; --card2:#1d2745;
  --ink:#f3f6ff; --muted:#93a0c0; --line:rgba(255,255,255,.08);
  --good:#2ee6a6; --bad:#ff6a88; --shadow:0 10px 30px rgba(0,0,0,.45);
  --brand1:#FF6A88; --brand2:#a13bff;
  --d1:#FF6A88; --d2:#FF99AC;                       /* workout day theme */
  --grad:linear-gradient(135deg,var(--brand1),var(--brand2));
  --dgrad:linear-gradient(135deg,var(--d1),var(--d2));
  /* metric accent colours */
  --water1:#3a8dff; --water2:#36d1dc;
  --steps1:#43e97b; --steps2:#27c8a8;
  --walk1:#ff9a2e;  --walk2:#ffcf2e;
  --cal1:#fc466b;   --cal2:#ff7eb3;
  --sleep1:#9b6bff; --sleep2:#647dee;
  --work1:#FF6A88;  --work2:#FF99AC;
}
*{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,Arial,sans-serif;
  color:var(--ink); min-height:100vh; -webkit-font-smoothing:antialiased;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(123,92,255,.18), transparent 60%),
    radial-gradient(1000px 500px at -10% 10%, rgba(255,94,154,.14), transparent 55%),
    linear-gradient(180deg,var(--bg1),var(--bg0));
  background-attachment:fixed;
}
button{font-family:inherit}
input,select{font-family:inherit}

/* ---------- App layout ---------- */
.wrap{max-width:560px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column}
header{
  padding:14px 16px 12px;position:sticky;top:0;z-index:20;
  padding-top:calc(12px + env(safe-area-inset-top));
  background:rgba(10,14,28,.72);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:18px;letter-spacing:.2px}
.brand .spark{width:24px;height:24px;border-radius:8px;background:var(--grad);display:inline-block;box-shadow:0 0 16px rgba(255,94,154,.55)}
.header-row{display:flex;align-items:center;justify-content:space-between;gap:10px}
.streak-chip{font-weight:800;font-size:13px;color:var(--good);background:rgba(46,230,166,.12);padding:6px 11px;border-radius:999px;white-space:nowrap}
main{flex:1;padding:16px 16px calc(96px + env(safe-area-inset-bottom))}
.screen{animation:fade .25s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1}}

/* ---------- Bottom nav ---------- */
.nav-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:40;
  max-width:560px;margin:0 auto;display:flex;
  background:rgba(13,18,34,.92);backdrop-filter:blur(16px);border-top:1px solid var(--line);
  padding:7px 6px calc(7px + env(safe-area-inset-bottom));
}
.nav-bar button{
  flex:1;background:none;border:none;color:var(--muted);cursor:pointer;
  display:flex;flex-direction:column;align-items:center;gap:3px;padding:5px 2px;border-radius:12px;font-weight:700;font-size:10.5px;
}
.nav-bar button .ic{font-size:20px;line-height:1;filter:grayscale(.4) opacity(.8)}
.nav-bar button.active{color:#fff}
.nav-bar button.active .ic{filter:none}
.nav-bar button.active::before{content:"";position:absolute;margin-top:-3px;width:5px;height:5px;border-radius:50%;background:var(--brand1)}

/* ---------- Generic UI ---------- */
h1.page-title{font-size:23px;font-weight:900;margin:2px 2px 4px}
.page-sub{color:var(--muted);font-size:13px;font-weight:600;margin:0 2px 16px}
.card{background:linear-gradient(180deg,var(--card2),var(--card));border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);padding:16px;margin-bottom:14px}
.card h2{margin:0 0 12px;font-size:15px;font-weight:800}
.section-label{font-size:12px;text-transform:uppercase;letter-spacing:.8px;color:var(--muted);font-weight:800;margin:4px 2px 10px}
.muted{color:var(--muted)}
.btn{border:none;border-radius:14px;font-weight:800;font-size:15px;cursor:pointer;padding:14px 16px;display:flex;align-items:center;gap:8px;justify-content:center;color:#fff;width:100%}
.btn-primary{background:var(--grad);box-shadow:0 8px 22px rgba(255,94,154,.35)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:rgba(255,255,255,.07);color:var(--ink);border:1px solid var(--line)}
.btn-ghost:active{background:rgba(255,255,255,.12)}
.btn-sm{padding:10px 13px;font-size:13.5px;width:auto;border-radius:12px}
.btn-row{display:flex;gap:10px}

/* ---------- Welcome banner ---------- */
.welcome{background:var(--grad);border-radius:20px;padding:16px 18px;margin-bottom:16px;position:relative;overflow:hidden;box-shadow:0 12px 28px rgba(0,0,0,.35)}
.welcome::after{content:"";position:absolute;right:-30px;top:-30px;width:120px;height:120px;border-radius:50%;background:rgba(255,255,255,.16)}
.welcome .hi{font-size:13px;font-weight:700;color:rgba(255,255,255,.92)}
.welcome .msg{font-size:18px;font-weight:800;color:#fff;margin-top:3px;line-height:1.3;position:relative;z-index:1;max-width:92%}

/* ---------- Rings ---------- */
.ring-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.ring{text-align:center}
.ring-svg{position:relative;width:100%;max-width:104px;margin:0 auto}
.ring-svg svg{width:100%;height:auto;display:block;transform:rotate(-90deg)}
.ring-bg{fill:none;stroke:rgba(255,255,255,.09);stroke-width:9}
.ring-fg{fill:none;stroke-width:9;stroke-linecap:round;transition:stroke-dashoffset .6s cubic-bezier(.4,0,.2,1)}
.ring-mid{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.ring-icon{font-size:24px}
.ring-done .ring-icon{color:var(--good)}
.ring-warn .ring-sub{color:#ff708a}
.ring-warn .ring-label{color:#ff8aa0}
.ring-label{font-weight:800;font-size:12.5px;margin-top:6px}
.ring-sub{font-size:11px;color:var(--muted);font-weight:700;margin-top:1px}

/* quick-add buttons under rings */
.quick-add{display:flex;flex-wrap:wrap;gap:7px;margin-top:14px}
.chip-btn{background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--ink);font-weight:800;font-size:12.5px;padding:8px 12px;border-radius:999px;cursor:pointer}
.chip-btn:active{background:rgba(255,255,255,.14)}

/* ---------- Forms ---------- */
.field{margin-bottom:13px}
.field label{display:block;font-size:12.5px;font-weight:800;color:var(--muted);margin:0 2px 6px}
.input{
  width:100%;background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:13px;
  color:var(--ink);font-size:16px;font-weight:700;padding:13px 14px;outline:none;
}
.input:focus{border-color:var(--brand1);box-shadow:0 0 0 3px rgba(255,106,136,.18)}
.input::placeholder{color:#5b678a;font-weight:600}
.input-row{display:flex;align-items:center;gap:10px}
.input-row .input{flex:1}
.input-unit{color:var(--muted);font-weight:800;font-size:13px;flex:0 0 auto}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-note{font-size:12px;color:var(--muted);font-weight:600;margin:2px 2px 0}

/* segmented toggle (daily/weekly/monthly, metric switch) */
.segmented{display:flex;background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:13px;padding:4px;gap:4px;margin-bottom:14px}
.segmented button{flex:1;background:none;border:none;color:var(--muted);font-weight:800;font-size:13px;padding:9px 6px;border-radius:10px;cursor:pointer;white-space:nowrap}
.segmented button.active{background:var(--grad);color:#fff;box-shadow:0 4px 12px rgba(255,94,154,.3)}
.segmented button:disabled{opacity:.32;cursor:not-allowed}

/* metric chip picker (Trends) */
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.metric-chip{background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--muted);font-weight:800;font-size:13px;padding:9px 14px;border-radius:999px;cursor:pointer}
.metric-chip.active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 4px 12px rgba(255,94,154,.3)}
.metric-chip:active{transform:translateY(1px)}

/* star rating */
.stars{display:flex;gap:8px}
.stars button{background:none;border:none;font-size:30px;cursor:pointer;padding:0;line-height:1;filter:grayscale(1) opacity(.4)}
.stars button.on{filter:none}

/* ---------- Body / deltas ---------- */
.stat-row{display:flex;justify-content:space-between;align-items:center;padding:11px 0;border-bottom:1px solid var(--line)}
.stat-row:last-child{border-bottom:none}
.stat-name{font-weight:800;font-size:14.5px}
.stat-vals{display:flex;align-items:center;gap:10px;font-weight:800;font-size:14px}
.stat-now{font-size:15px}
.delta{font-size:12.5px;font-weight:900;padding:3px 9px;border-radius:999px}
.delta.down{color:var(--good);background:rgba(46,230,166,.13)}
.delta.up{color:var(--bad);background:rgba(255,106,136,.13)}
.delta.flat{color:var(--muted);background:rgba(255,255,255,.06)}
.big-metric{display:flex;align-items:baseline;gap:8px;margin:2px 0 2px}
.big-metric .num{font-size:40px;font-weight:900;line-height:1}
.big-metric .unit{font-size:15px;color:var(--muted);font-weight:800}
.progressbar{height:9px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;margin-top:10px}
.progressbar > span{display:block;height:100%;border-radius:999px;background:var(--grad)}

/* chart host */
.chart-host{min-height:260px}

/* ---------- Auth ---------- */
.auth-wrap{max-width:420px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column;justify-content:center;padding:24px 22px calc(24px + env(safe-area-inset-bottom))}
.auth-logo{display:flex;flex-direction:column;align-items:center;gap:12px;margin-bottom:26px;text-align:center}
.auth-logo .spark{width:62px;height:62px;border-radius:18px;background:var(--grad);box-shadow:0 10px 34px rgba(255,94,154,.5);display:flex;align-items:center;justify-content:center;font-size:32px}
.auth-logo h1{margin:0;font-size:27px;font-weight:900}
.auth-logo p{margin:0;color:var(--muted);font-size:14px;font-weight:600;max-width:300px}
.auth-card{background:linear-gradient(180deg,var(--card2),var(--card));border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:22px}
.auth-switch{text-align:center;margin-top:16px;color:var(--muted);font-size:13.5px;font-weight:600}
.auth-switch button{background:none;border:none;color:var(--brand1);font-weight:800;cursor:pointer;font-size:13.5px}
.auth-msg{font-size:13px;font-weight:700;padding:11px 13px;border-radius:12px;margin-bottom:14px;display:none}
.auth-msg.show{display:block}
.auth-msg.err{color:#ffb4c2;background:rgba(255,106,136,.13);border:1px solid rgba(255,106,136,.25)}
.auth-msg.ok{color:#9af5d4;background:rgba(46,230,166,.12);border:1px solid rgba(46,230,166,.25)}
.link-btn{background:none;border:none;color:var(--muted);font-weight:700;cursor:pointer;font-size:12.5px;text-decoration:underline;padding:6px 0}

/* ---------- Toast ---------- */
.toast{position:fixed;left:50%;bottom:calc(86px + env(safe-area-inset-bottom));transform:translateX(-50%);
  background:rgba(20,26,46,.96);border:1px solid var(--line);color:var(--ink);font-weight:800;font-size:13.5px;
  padding:11px 18px;border-radius:999px;box-shadow:var(--shadow);z-index:70;opacity:0;transition:opacity .25s, transform .25s;pointer-events:none}
.toast.show{opacity:1;transform:translateX(-50%) translateY(-4px)}
.toast.good{border-color:rgba(46,230,166,.4)}

/* ---------- Workout player (ported) ---------- */
.workout-view .welcome{background:var(--dgrad)}
.player{background:linear-gradient(180deg,var(--card2),var(--card));border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);padding:18px 16px 16px;text-align:center;margin-bottom:18px}
.player-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.pill{display:inline-flex;align-items:center;gap:8px;font-weight:800;font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.6px}
.pill .move{background:rgba(255,255,255,.08);color:var(--ink);padding:3px 9px;border-radius:999px;text-transform:none;letter-spacing:0;font-weight:700}
.vidbtn{display:inline-flex;align-items:center;gap:7px;background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--ink);font-weight:800;font-size:12.5px;padding:7px 12px;border-radius:999px;cursor:pointer;flex:0 0 auto}
.vidbtn:active{background:rgba(255,255,255,.13)}
.vidbtn .play,.row-watch{display:flex;align-items:center;justify-content:center}
.vidbtn .play{width:18px;height:18px;border-radius:5px;background:#ff2d2d;color:#fff;font-size:9px;padding-left:1px}
.ready{color:var(--good);font-weight:800;font-size:13.5px;margin-top:8px;display:none}
.ready.show{display:block;animation:fade .4s ease}
.figbox{width:172px;height:172px;margin:10px auto 6px;filter:drop-shadow(0 8px 18px rgba(0,0,0,.45))}
.fig{width:100%;height:100%;display:block}
.fig .limb{fill:none;stroke:#fff;stroke-width:6.5;stroke-linecap:round;stroke-linejoin:round}
.fig .head,.fig .cap{fill:#fff}
.fig .prop{fill:rgba(255,255,255,.78)}
.fig .ground{stroke:rgba(255,255,255,.5);stroke-width:3;stroke-linecap:round}
.ex-name{font-size:24px;font-weight:900;margin:4px 0 0;letter-spacing:.2px}
.timer{position:relative;width:188px;height:188px;margin:14px auto 4px}
.timer svg{transform:rotate(-90deg)}
.timer .ring-bg2{fill:none;stroke:rgba(255,255,255,.08);stroke-width:13}
.timer .ring-fg2{fill:none;stroke:url(#ringGrad);stroke-width:13;stroke-linecap:round;transition:stroke-dashoffset .3s linear;filter:drop-shadow(0 0 6px rgba(255,94,154,.5))}
.time-num{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center}
.time-num .big{font-size:54px;font-weight:900;line-height:1;font-variant-numeric:tabular-nums}
.time-num .lbl{font-size:11px;color:var(--muted);font-weight:700;margin-top:5px;text-transform:uppercase;letter-spacing:1px}
.controls{display:flex;gap:10px;justify-content:center;margin-top:14px}
.controls .btn{width:auto}
.controls .btn-primary{flex:1;max-width:230px}
.controls .btn-ghost{flex:0 0 auto}
.wk-nav{display:flex;justify-content:space-between;margin-top:12px}
.wk-nav button{background:none;border:none;color:var(--muted);font-weight:700;font-size:13.5px;cursor:pointer;padding:6px}
.wk-nav button:disabled{opacity:.3}
.list-title{font-weight:900;font-size:17px;margin:4px 2px 12px}
.item{display:flex;align-items:center;gap:13px;background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:0 6px 16px rgba(0,0,0,.3);padding:11px 13px;margin-bottom:11px;cursor:pointer}
.item.current{border-color:transparent;box-shadow:0 0 0 2px var(--d1), 0 8px 20px rgba(255,94,154,.25)}
.item.done{opacity:.62}
.item-fig{width:54px;height:54px;flex:0 0 54px;border-radius:14px;overflow:hidden}
.item-fig .fig .limb{stroke-width:7}
.item-body{flex:1;min-width:0}
.item-name{font-weight:800;font-size:15.5px}
.item-sub{color:var(--muted);font-size:12px;font-weight:700;margin-top:2px}
.badge{width:28px;height:28px;border-radius:9px;background:var(--dgrad);color:#fff;font-weight:900;font-size:13px;display:flex;align-items:center;justify-content:center;flex:0 0 28px}
.item.done .badge{background:var(--good)}
.item.done .badge::after{content:"✓"}
.item.done .badge span{display:none}
.row-watch{flex:0 0 36px;width:36px;height:36px;border-radius:11px;background:rgba(255,45,45,.16);color:#ff5a5a;text-decoration:none;font-size:13px;padding-left:2px;border:none;cursor:pointer}
.row-watch:active{background:rgba(255,45,45,.28)}
.rest-day{text-align:center;padding:40px 24px;background:linear-gradient(180deg,var(--card2),var(--card));border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow)}
.rest-day .moon{font-size:64px}
.rest-day h2{margin:14px 0 8px;font-size:26px;font-weight:900}
.rest-day p{color:var(--muted);margin:0 auto;line-height:1.6;font-size:15px;max-width:320px}

/* ---------- Overlays (ported) ---------- */
.overlay{position:fixed;inset:0;background:rgba(6,9,20,.7);display:none;align-items:center;justify-content:center;z-index:80;padding:24px;backdrop-filter:blur(6px);overflow:hidden}
.overlay.show{display:flex}
.cele{background:linear-gradient(180deg,var(--card2),var(--card));border:1px solid var(--line);border-radius:28px;padding:34px 26px;text-align:center;max-width:380px;width:100%;box-shadow:0 30px 80px rgba(0,0,0,.55);animation:pop .4s cubic-bezier(.2,1.4,.4,1);position:relative;z-index:2}
@keyframes pop{from{transform:scale(.7);opacity:0}to{transform:scale(1);opacity:1}}
.cele .big-emoji{font-size:66px}
.cele h2{margin:8px 0 8px;font-size:27px;font-weight:900;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.cele p{color:var(--ink);font-size:16px;line-height:1.5;margin:0 0 4px;font-weight:600}
.cele .streak-line{color:var(--good);font-weight:900;font-size:17px;margin:14px 0 20px}
.cele .again{margin-top:12px;background:none;border:none;color:var(--muted);font-weight:700;cursor:pointer;font-size:14px}
.confetti{position:absolute;top:-40px;z-index:1;pointer-events:none;animation:fall linear forwards}
@keyframes fall{to{transform:translateY(120vh) rotate(540deg);opacity:0}}
.vid-overlay{position:fixed;inset:0;background:rgba(6,9,20,.9);display:none;align-items:center;justify-content:center;z-index:90;padding:18px;backdrop-filter:blur(8px)}
.vid-overlay.show{display:flex}
.vid-box{width:100%;max-width:540px;position:relative;animation:pop .3s ease}
.vid-close{position:absolute;top:-46px;right:0;background:rgba(255,255,255,.14);border:none;color:#fff;width:38px;height:38px;border-radius:50%;font-size:17px;cursor:pointer;line-height:1}
.vid-frame{position:relative;width:100%;padding-bottom:56.25%;height:0;border-radius:18px;overflow:hidden;background:#000;box-shadow:0 24px 70px rgba(0,0,0,.7)}
.vid-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.vid-title{text-align:center;color:#fff;font-weight:800;margin-top:14px;font-size:17px}

/* loading spinner */
.spinner{width:34px;height:34px;border-radius:50%;border:3px solid rgba(255,255,255,.15);border-top-color:var(--brand1);animation:spin .8s linear infinite;margin:60px auto}
@keyframes spin{to{transform:rotate(360deg)}}
.empty{text-align:center;color:var(--muted);font-weight:600;font-size:14px;padding:30px 16px;line-height:1.5}