:root{
  --paper:#F4EEE3; --surface:#FBF7EF; --surface-2:#ECE4D4;
  --ink:#1B2A26; --muted:#566661; --faint:#8A968E;
  --line:#DFD5C3; --line-strong:#CBBEA6;
  --green:#2C4340; --green-ink:#28403C; --green-soft:#DCE4DE;
  --terra:#A9503A; --terra-ink:#8E4230; --terra-soft:#F0DDD3; --on-terra:#FBF7EF;
  --ok:#2E7355;
  --shadow:0 1px 2px rgba(27,42,38,.05), 0 12px 28px -20px rgba(27,42,38,.4);
  --serif:'Spectral', Georgia, serif;
  --sans:'Golos Text','Segoe UI', system-ui, sans-serif;
  --mono:'IBM Plex Mono', ui-monospace, Consolas, monospace;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --paper:#101815; --surface:#16211D; --surface-2:#1C2823;
    --ink:#ECE5D6; --muted:#9DA9A1; --faint:#6E7C74;
    --line:#26332E; --line-strong:#3A4A43;
    --green:#5E8C80; --green-ink:#7BA79B; --green-soft:#172720;
    --terra:#CE6E52; --terra-ink:#E28C6F; --terra-soft:#2A1A13; --on-terra:#101815;
    --ok:#65BE94;
    --shadow:0 1px 2px rgba(0,0,0,.4), 0 14px 32px -22px rgba(0,0,0,.9);
  }
}
:root[data-theme="dark"]{
  --paper:#101815; --surface:#16211D; --surface-2:#1C2823;
  --ink:#ECE5D6; --muted:#9DA9A1; --faint:#6E7C74;
  --line:#26332E; --line-strong:#3A4A43;
  --green:#5E8C80; --green-ink:#7BA79B; --green-soft:#172720;
  --terra:#CE6E52; --terra-ink:#E28C6F; --terra-soft:#2A1A13; --on-terra:#101815;
  --ok:#65BE94;
  --shadow:0 1px 2px rgba(0,0,0,.4), 0 14px 32px -22px rgba(0,0,0,.9);
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
#app{
  max-width:600px;margin:0 auto;min-height:100dvh;
  padding:calc(20px + env(safe-area-inset-top)) 20px calc(28px + env(safe-area-inset-bottom));
  display:flex;flex-direction:column;
}
a{color:var(--terra-ink);text-underline-offset:3px}
:focus-visible{outline:2px solid var(--terra);outline-offset:2px;border-radius:6px}

/* ---------- typography helpers ---------- */
.eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
h1,h2,h3{font-family:var(--serif);font-weight:600;letter-spacing:-.01em;margin:0;text-wrap:balance}
.muted{color:var(--muted)}
.center{text-align:center}

/* ---------- buttons ---------- */
.btn{
  appearance:none;border:1px solid transparent;border-radius:12px;cursor:pointer;
  font-family:var(--sans);font-size:16px;font-weight:600;padding:14px 18px;
  background:var(--terra);color:var(--on-terra);width:100%;transition:filter .15s, opacity .15s;
}
.btn:hover{filter:brightness(1.04)}
.btn:active{filter:brightness(.96)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn.ghost{background:transparent;border-color:var(--line-strong);color:var(--ink)}
.btn.ghost:hover{border-color:var(--ink);filter:none}
.btn.small{width:auto;padding:9px 14px;font-size:14px;border-radius:10px}
.btn-row{display:flex;gap:10px;flex-wrap:wrap}

/* ---------- fields ---------- */
.field{
  width:100%;font-family:var(--sans);font-size:16px;color:var(--ink);
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  padding:13px 15px;margin:0;
}
.field::placeholder{color:var(--faint)}
.field:focus{outline:none;border-color:var(--terra);box-shadow:0 0 0 3px var(--terra-soft)}
label.lbl{display:block;font-size:13px;color:var(--muted);margin:0 0 6px 2px}
.stack{display:flex;flex-direction:column;gap:14px}

/* ---------- cards ---------- */
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:16px;
  padding:22px;box-shadow:var(--shadow);
}

/* ---------- brand header ---------- */
.brand{display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;margin:8px 0 22px}
.brand .mark{width:60px;height:60px}
.brand h1{font-size:1.9rem}
.brand p{margin:0;color:var(--muted);max-width:32ch}

/* ---------- auth ---------- */
.tabs{display:flex;gap:6px;background:var(--surface-2);border-radius:12px;padding:5px;margin-bottom:18px}
.tabs button{
  flex:1;appearance:none;border:0;background:transparent;cursor:pointer;
  font-family:var(--sans);font-size:15px;font-weight:600;color:var(--muted);
  padding:10px;border-radius:9px;transition:background .15s,color .15s;
}
.tabs button.active{background:var(--surface);color:var(--ink);box-shadow:var(--shadow)}
.divider{display:flex;align-items:center;gap:12px;color:var(--faint);font-size:13px;margin:18px 0}
.divider::before,.divider::after{content:"";height:1px;background:var(--line);flex:1}
.tg-wrap{display:flex;justify-content:center;min-height:46px}
.err{color:var(--terra-ink);font-size:14px;margin:2px 0 0;min-height:1.2em}
.formnote{font-size:13px;color:var(--muted);text-align:center;margin-top:4px}

/* ---------- app top bar ---------- */
.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}
.topbar .who{display:flex;align-items:center;gap:10px;min-width:0}
.topbar .ava{width:38px;height:38px;border-radius:50%;object-fit:cover;background:var(--surface-2);flex-shrink:0;border:1px solid var(--line)}
.topbar .who b{font-family:var(--serif);font-weight:600;font-size:1.05rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar .who span{display:block;font-size:12px;color:var(--muted)}
.iconbtn{appearance:none;border:1px solid var(--line);background:var(--surface);color:var(--muted);
  border-radius:10px;padding:8px 10px;cursor:pointer;font-size:13px;font-family:var(--sans)}
.iconbtn:hover{color:var(--ink);border-color:var(--line-strong)}

/* ---------- progress bar ---------- */
.progress{margin-bottom:22px}
.progress .pmeta{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);margin-bottom:8px}
.progress .track{height:8px;border-radius:99px;background:var(--surface-2);overflow:hidden}
.progress .fill{height:100%;background:var(--terra);border-radius:99px;transition:width .5s ease}

/* ---------- day list ---------- */
.daylist{position:relative;display:flex;flex-direction:column;gap:12px}
.dayrow{
  display:grid;grid-template-columns:52px 1fr auto;align-items:center;gap:14px;
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  padding:14px 16px;box-shadow:var(--shadow);text-align:left;width:100%;
  font-family:var(--sans);cursor:pointer;transition:transform .12s, border-color .15s;
  color:inherit;appearance:none;
}
.dayrow:hover{transform:translateY(-1px)}
.dayrow[disabled]{cursor:not-allowed;opacity:.62;box-shadow:none}
.dayrow[disabled]:hover{transform:none}
.dayrow.current{border-color:var(--terra)}
.dnum{
  width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:17px;color:var(--green-ink);
  background:var(--surface);border:2px solid var(--line-strong);
}
.dayrow.current .dnum{border-color:var(--terra);color:var(--terra-ink)}
.dayrow.done .dnum{border-color:var(--ok);color:var(--ok)}
.dinfo{min-width:0}
.dinfo .dt{font-family:var(--serif);font-weight:600;font-size:1.12rem;line-height:1.2}
.dinfo .dp{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);margin-top:3px}
.dstate{font-size:12px;font-family:var(--mono);letter-spacing:.06em;color:var(--faint);white-space:nowrap;text-transform:uppercase}
.dayrow.current .dstate{color:var(--terra-ink)}
.dayrow.done .dstate{color:var(--ok)}

/* ---------- day view ---------- */
.backbtn{appearance:none;border:0;background:transparent;color:var(--muted);cursor:pointer;
  font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;padding:4px 0;margin-bottom:14px}
.backbtn:hover{color:var(--ink)}
.dayhead{margin-bottom:18px}
.dayhead .dm{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--terra-ink)}
.dayhead h1{font-size:1.8rem;margin:8px 0 0}
.skill{margin:14px 0 0;padding:12px 14px;background:var(--green-soft);border-radius:10px;font-size:14.5px;color:var(--ink)}
.skill b{color:var(--terra-ink)}

.videobox{margin:22px 0;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:#000}
.videobox video,.videobox iframe{display:block;width:100%;aspect-ratio:9/16;border:0;background:#000;max-height:70vh}
.videoplaceholder{
  aspect-ratio:16/10;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  background:var(--green-soft);color:var(--muted);padding:22px;text-align:center;border-radius:14px;border:1px solid var(--line);
}
.videoplaceholder .play{width:54px;height:54px;border-radius:50%;background:var(--terra);color:var(--on-terra);
  display:flex;align-items:center;justify-content:center;font-size:20px;padding-left:4px}
.videoquote{font-family:var(--serif);font-style:italic;font-size:1.15rem;line-height:1.4;color:var(--ink);
  border-left:3px solid var(--terra);padding:2px 0 2px 16px;margin:0 0 22px}

.sect{margin:22px 0}
.sect .sh{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin-bottom:9px}
.sect h3{font-size:1.15rem;margin-bottom:6px}
.sect p{margin:0 0 10px;white-space:pre-line}
.sect p:last-child{margin-bottom:0}
.note-area{width:100%;min-height:120px;resize:vertical;font-family:var(--sans);font-size:15px;line-height:1.55;
  color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:13px 15px}
.note-area:focus{outline:none;border-color:var(--terra);box-shadow:0 0 0 3px var(--terra-soft)}
.savednote{font-size:12px;color:var(--muted);margin-top:6px;min-height:1em}

.completebar{position:sticky;bottom:0;padding:16px 0 calc(6px + env(safe-area-inset-bottom));
  background:linear-gradient(to top, var(--paper) 62%, transparent);margin-top:10px}
.donebadge{display:inline-flex;align-items:center;gap:8px;color:var(--ok);font-size:14px;font-weight:600;
  background:var(--green-soft);border-radius:99px;padding:8px 14px;margin-bottom:12px}

/* ---------- admin ---------- */
.codelist{font-family:var(--mono);font-size:13px;max-height:220px;overflow:auto;border:1px solid var(--line);
  border-radius:10px;padding:10px 12px;background:var(--surface-2)}
.codelist .used{color:var(--faint);text-decoration:line-through}
.statgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:16px}
.stat{background:var(--surface-2);border-radius:10px;padding:12px 14px}
.stat b{font-family:var(--serif);font-size:1.5rem;display:block}
.stat span{font-size:12px;color:var(--muted)}

/* ---------- loader / toast ---------- */
.loader{display:flex;flex:1;align-items:center;justify-content:center;color:var(--muted)}
.spin{width:26px;height:26px;border:3px solid var(--line);border-top-color:var(--terra);border-radius:50%;animation:sp .8s linear infinite}
@keyframes sp{to{transform:rotate(360deg)}}
.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,20px);opacity:0;pointer-events:none;
  background:var(--green);color:#F4EEE3;padding:12px 18px;border-radius:12px;font-size:14px;max-width:90vw;
  box-shadow:var(--shadow);transition:opacity .25s, transform .25s;z-index:50;text-align:center}
.toast.show{opacity:1;transform:translate(-50%,0)}
.toast.err{background:var(--terra)}

.foot{margin-top:auto;padding-top:26px;text-align:center;font-family:var(--mono);font-size:11px;color:var(--faint);letter-spacing:.06em}

@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}
@media (max-width:400px){
  .dayrow{grid-template-columns:44px 1fr;gap:12px}
  .dstate{display:none}
}