/* caltrack — mobile-first styles. Vanilla CSS, no build step. */
:root{
  --bg:#f3f6f4; --card:#ffffff; --ink:#11241c; --muted:#6b7d74;
  --line:#e3eae6; --accent:#0f8a5f; --accent2:#16c47f; --accent-ink:#fff;
  --food:#ff8a3d; --exercise:#1f9bff; --good:#16c47f; --bad:#ff5a5a;
  --shadow:0 6px 22px rgba(20,60,40,.10); --radius:18px;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0c130f; --card:#141d18; --ink:#e8f1ec; --muted:#8aa097;
    --line:#243029; --accent:#16c47f; --accent2:#0f8a5f; --accent-ink:#05130d;
    --shadow:0 6px 24px rgba(0,0,0,.45);
  }
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  font:16px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,system-ui,sans-serif;
  background:var(--bg); color:var(--ink);
  padding-top:env(safe-area-inset-top); -webkit-font-smoothing:antialiased;
}
.hidden{display:none !important}
.muted{color:var(--muted)}
.small{font-size:13px}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font-family:inherit}

/* ---------- buttons ---------- */
.btn-primary{
  background:linear-gradient(135deg,var(--accent2),var(--accent));
  color:var(--accent-ink); font-weight:700; font-size:16px;
  padding:14px 18px; border-radius:14px; width:100%;
  box-shadow:0 4px 14px rgba(15,138,95,.30); transition:transform .08s, filter .15s;
}
.btn-primary:active{transform:scale(.97)}
.btn-primary.big{padding:16px;font-size:17px;letter-spacing:.2px}
.btn-primary.danger{background:linear-gradient(135deg,#ff7a7a,#e23b3b);box-shadow:0 4px 14px rgba(226,59,59,.3)}
.btn-ghost{
  background:transparent;color:var(--muted);font-weight:600;padding:12px;border-radius:12px;width:100%;
  border:1px solid var(--line);
}
.btn-ghost.danger{color:var(--bad);border-color:transparent}

/* ---------- auth ---------- */
.auth{min-height:100dvh;display:grid;place-items:center;padding:24px}
.auth-card{
  width:100%;max-width:380px;background:var(--card);border-radius:24px;
  padding:30px 24px;box-shadow:var(--shadow);
}
.brand{display:flex;align-items:center;gap:10px;justify-content:center}
.brand-mark{font-size:30px;filter:drop-shadow(0 2px 4px rgba(0,0,0,.15))}
.brand h1{margin:0;font-size:30px;letter-spacing:-.5px}
.brand.sm{justify-content:flex-start;gap:7px}
.brand.sm .brand-mark{font-size:22px}
.brand.sm b{font-size:19px;letter-spacing:-.3px}
.tagline{text-align:center;color:var(--muted);margin:6px 0 22px}
form label{display:block;font-weight:600;font-size:14px;margin-bottom:14px}
form label small{font-weight:400;color:var(--muted)}
form input,#settings input{
  width:100%;margin-top:6px;padding:13px 14px;border-radius:12px;font-size:16px;
  background:var(--bg);border:1px solid var(--line);color:var(--ink);
}
form input:focus,#settings input:focus{outline:none;border-color:var(--accent)}
.auth-toggle{text-align:center;margin-top:18px;color:var(--muted);font-size:14px}
.auth-toggle a{color:var(--accent);font-weight:600;text-decoration:none}
.auth-err{color:var(--bad);text-align:center;min-height:20px;margin:10px 0 0;font-size:14px}

/* ---------- app shell ---------- */
.app{max-width:560px;margin:0 auto}
.topbar{
  position:sticky;top:0;z-index:5;display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px calc(14px);background:color-mix(in srgb,var(--bg) 86%,transparent);
  backdrop-filter:saturate(1.4) blur(10px);
}
.icon-btn{font-size:22px;width:42px;height:42px;border-radius:12px;display:grid;place-items:center}
.icon-btn.pulse{animation:pulse 1.4s ease-in-out infinite}
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.18);filter:drop-shadow(0 0 8px var(--accent))}}
.stack{display:flex;flex-direction:column;gap:14px;padding:4px 14px 30px}
.foot-space{height:30px}
.card{background:var(--card);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.card h2{margin:0 0 12px;font-size:17px;letter-spacing:-.2px}

/* ---------- entry card ---------- */
.seg{display:flex;gap:6px;background:var(--bg);padding:5px;border-radius:14px;margin-bottom:14px}
.seg-btn{flex:1;padding:11px;border-radius:10px;font-weight:700;font-size:15px;color:var(--muted);transition:.15s}
.seg-btn.active[data-kind="food"]{background:var(--card);color:var(--food);box-shadow:0 2px 8px rgba(0,0,0,.08)}
.seg-btn.active[data-kind="exercise"]{background:var(--card);color:var(--exercise);box-shadow:0 2px 8px rgba(0,0,0,.08)}
.combo{position:relative;margin-bottom:12px}
#label-input{
  width:100%;padding:14px;border-radius:12px;font-size:17px;
  background:var(--bg);border:1px solid var(--line);color:var(--ink);
}
#label-input:focus{outline:none;border-color:var(--accent)}
.suggest{
  list-style:none;margin:6px 0 0;padding:6px;position:absolute;left:0;right:0;top:100%;z-index:8;
  background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);
  max-height:260px;overflow:auto;
}
.suggest li{display:flex;align-items:center;gap:10px;padding:10px 10px;border-radius:10px}
.suggest li:active{background:var(--bg)}
.suggest .s-label{flex:1;font-weight:600}
.suggest .s-cal{color:var(--muted);font-variant-numeric:tabular-nums;font-size:14px}
.suggest .s-glob{font-size:11px;opacity:.5}
.suggest .s-del{font-size:18px;color:var(--muted);width:30px;height:30px;border-radius:8px;flex:none}
.suggest .s-del:active{background:var(--bg);color:var(--bad)}

.cal-row{display:flex;align-items:stretch;gap:7px;margin-bottom:14px}
.step{
  flex:none;min-width:50px;padding:0 6px;border-radius:11px;font-weight:700;font-size:14px;
  background:var(--bg);border:1px solid var(--line);
}
.step.neg{color:var(--bad)} .step.pos{color:var(--good)}
.step:active{transform:scale(.94)}
.cal-field{flex:1;position:relative;display:flex;align-items:center}
#cal-input{
  width:100%;text-align:center;font-size:24px;font-weight:800;padding:10px 10px;border-radius:11px;
  background:var(--bg);border:1px solid var(--line);color:var(--ink);font-variant-numeric:tabular-nums;
}
#cal-input:focus{outline:none;border-color:var(--accent)}
.cal-unit{position:absolute;right:12px;bottom:7px;font-size:11px;color:var(--muted)}

/* ---------- today ---------- */
.today-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.today-head h2{margin:0}
.rings{display:flex;gap:8px;text-align:center}
.stat{flex:1;background:var(--bg);border-radius:14px;padding:12px 6px}
.stat b{display:block;font-size:22px;font-weight:800;font-variant-numeric:tabular-nums}
.stat span{font-size:11px;color:var(--muted)}
.stat.eaten b{color:var(--food)} .stat.burned b{color:var(--exercise)} .stat.net b{color:var(--good)}
.bar{height:8px;background:var(--bg);border-radius:6px;overflow:hidden;margin:14px 0 8px}
.bar-fill{height:100%;width:0;background:linear-gradient(90deg,var(--accent2),var(--accent));transition:width .4s}
.net-msg{margin:0 0 6px;font-size:13px}
.entries{list-style:none;margin:10px 0 0;padding:0}
.entries li{display:flex;align-items:center;gap:10px;padding:9px 4px;border-top:1px solid var(--line)}
.entries .e-emoji{font-size:18px}
.entries .e-label{flex:1;font-weight:600}
.entries .e-cal{font-variant-numeric:tabular-nums;color:var(--muted)}
.entries .e-cal.food{color:var(--food)} .entries .e-cal.exercise{color:var(--exercise)}
.entries .e-del{color:var(--muted);font-size:17px;width:28px;height:28px;border-radius:8px}
.entries .e-del:active{color:var(--bad);background:var(--bg)}
.entries .empty{color:var(--muted);font-size:14px;padding:8px 0;border:0}

/* ---------- projection / actuals ---------- */
.proj-sentence{font-size:16px;line-height:2.1;margin:2px 0 8px}
.spark{font-size:15px}
.stepper{display:inline-flex;align-items:center;gap:4px;background:var(--bg);border-radius:11px;padding:3px 5px;vertical-align:middle}
.stepper .mini{
  width:28px;height:28px;border-radius:8px;font-size:18px;font-weight:800;color:var(--accent);
  background:var(--card);display:grid;place-items:center;line-height:1;
}
.stepper .mini:active{transform:scale(.9)}
.stepper b{font-variant-numeric:tabular-nums;min-width:30px;text-align:center;font-size:16px}
.stepper i{font-style:normal;color:var(--muted);font-size:12px;margin-left:-2px}
.big-kg{color:var(--good);font-size:19px;font-weight:800;white-space:nowrap}
.chart{width:100%;display:block;margin:6px 0}
.proj-card h2,.actual-card h2{display:flex;align-items:center;gap:6px}

/* ---------- settings sheet ---------- */
.backdrop{position:fixed;inset:0;background:rgba(8,18,13,.5);z-index:20;animation:fade .2s}
@keyframes fade{from{opacity:0}to{opacity:1}}
.sheet{
  position:fixed;left:0;right:0;bottom:0;z-index:30;background:var(--card);
  border-radius:24px 24px 0 0;padding:10px 20px calc(26px + env(safe-area-inset-bottom));
  max-width:560px;margin:0 auto;box-shadow:0 -10px 40px rgba(0,0,0,.25);
  animation:slideup .25s cubic-bezier(.2,.8,.2,1);
}
@keyframes slideup{from{transform:translateY(100%)}to{transform:translateY(0)}}
.sheet-grip{width:40px;height:5px;border-radius:3px;background:var(--line);margin:4px auto 14px}
.sheet h2{margin:0 0 18px}
.sheet label{display:block;font-weight:600;font-size:14px;margin-bottom:16px}
.sheet label small{font-weight:400;color:var(--muted);display:block;margin-top:2px}
.sheet .btn-primary{margin-bottom:8px}
.storage-note{font-size:12.5px;color:var(--muted);text-align:center;margin:16px 0 8px;line-height:1.5}

/* ---------- confirm ---------- */
.backdrop>.confirm{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:min(330px,86vw);
  background:var(--card);border-radius:20px;padding:22px;box-shadow:var(--shadow);text-align:center;
}
.confirm p{margin:0 0 18px;font-weight:600;font-size:16px}
.confirm-row{display:flex;gap:10px}
.confirm-row button{flex:1}

/* ---------- toasts ---------- */
.toasts{position:fixed;left:0;right:0;bottom:calc(18px + env(safe-area-inset-bottom));z-index:50;
  display:flex;flex-direction:column;align-items:center;gap:8px;pointer-events:none;padding:0 16px}
.toast{
  background:var(--ink);color:var(--bg);padding:12px 18px;border-radius:14px;font-size:14px;font-weight:600;
  box-shadow:var(--shadow);max-width:520px;animation:toastin .3s cubic-bezier(.2,.8,.2,1);text-align:center;
}
.toast.accent{background:linear-gradient(135deg,var(--accent2),var(--accent));color:var(--accent-ink)}
@keyframes toastin{from{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}