/* ================= THE LOGBOOK ================= */
:root{
  --iron:#111312;          /* page ground */
  --iron-2:#161917;        /* raised panel */
  --iron-3:#1d211f;        /* inset */
  --rule:#2a2f2c;          /* hairline */
  --rule-hi:#3a413d;
  --ink:#e8e6df;           /* primary text — warm paper white */
  --ink-dim:#8f958f;       /* secondary */
  --ink-faint:#5c635d;     /* tertiary */
  --amber:#f5a524;         /* signal accent */
  --amber-deep:#c67c0e;
  --green:#8fd460;         /* on-target only */
  --red:#e5654e;           /* off-target only */
  --stamp:rgba(245,165,36,.12);
  --font-display:'Anton',ultra-condensed,sans-serif;
  --font-body:'IBM Plex Sans',sans-serif;
  --font-mono:'IBM Plex Mono',monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  background-color:var(--iron);color:var(--ink);
  /* paper grain tiled directly on the ground — no fixed layer, no compositing risk */
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.02 0'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
  font:15px/1.6 var(--font-body);
  padding-bottom:calc(76px + env(safe-area-inset-bottom));
  min-height:100vh;position:relative;
}
main{max-width:820px;margin:0 auto;padding:0 18px 24px;position:relative;z-index:1}

/* ---------- masthead ---------- */
header.mast{
  display:flex;align-items:baseline;justify-content:space-between;
  padding:20px 0 12px;border-bottom:3px solid var(--ink);
  margin-bottom:4px;
}
.wordmark{font-family:var(--font-display);font-size:1.35rem;letter-spacing:.06em;
  text-transform:uppercase;color:var(--ink);text-decoration:none}
.wordmark em{font-style:normal;color:var(--amber)}
.mast .stamp{font-family:var(--font-mono);font-size:.72rem;color:var(--ink-dim);
  text-align:right;line-height:1.4;text-transform:uppercase;letter-spacing:.08em}
.mast .stamp b{color:var(--amber);font-weight:600}

/* ---------- page title ---------- */
h1.pg{
  font-family:var(--font-display);text-transform:uppercase;
  font-size:clamp(2.4rem,9vw,3.6rem);line-height:.95;letter-spacing:.01em;
  margin:26px 0 6px;color:var(--ink);
}
h1.pg .idx{color:var(--amber);-webkit-text-stroke:0;font-size:.5em;vertical-align:super;
  font-family:var(--font-mono);font-weight:400;letter-spacing:0;margin-right:.25em}
.pg-sub{font-family:var(--font-mono);font-size:.75rem;color:var(--ink-dim);
  text-transform:uppercase;letter-spacing:.12em;margin-bottom:22px}

/* ---------- section head ---------- */
h2.sec{
  display:flex;align-items:baseline;gap:10px;
  font-family:var(--font-body);font-weight:600;font-size:.8rem;
  text-transform:uppercase;letter-spacing:.16em;color:var(--ink-dim);
  margin:30px 0 10px;padding-bottom:6px;border-bottom:1px solid var(--rule);
}
h2.sec .n{font-family:var(--font-mono);color:var(--amber);font-weight:400}
h2.sec::after{content:"";flex:1;border-bottom:1px dashed var(--rule);transform:translateY(-6px)}

/* ---------- ledger (kpi rows) ---------- */
.ledger{border:1px solid var(--rule);background:var(--iron-2)}
.ledger .row{
  display:grid;grid-template-columns:1fr auto;align-items:baseline;gap:8px;
  padding:12px 16px;border-bottom:1px solid var(--rule);
}
.ledger .row:last-child{border-bottom:0}
.ledger .lbl{font-size:.78rem;text-transform:uppercase;letter-spacing:.1em;color:var(--ink-dim)}
.ledger .lbl small{display:block;letter-spacing:.02em;text-transform:none;color:var(--ink-faint);font-size:.72rem}
.ledger .fig{font-family:var(--font-mono);font-size:1.15rem;font-weight:600;
  font-variant-numeric:tabular-nums;text-align:right;color:var(--ink)}
.ledger .fig .u{font-size:.7em;color:var(--ink-dim);font-weight:400;margin-left:2px}

/* ---------- hero figure ---------- */
.hero{
  display:grid;grid-template-columns:1fr 1px 1fr;gap:0;align-items:stretch;
  border:1px solid var(--rule);background:var(--iron-2);margin-top:14px;
  position:relative;overflow:hidden;
}
.hero::after{ /* plate ring watermark */
  content:"";position:absolute;right:-70px;top:-70px;width:230px;height:230px;
  border:26px solid var(--iron-3);border-radius:50%;opacity:.55;pointer-events:none;
}
.hero>.divider{background:var(--rule)}
.hero .cell{padding:18px 18px 14px;position:relative;z-index:1}
.hero .tag{font-family:var(--font-mono);font-size:.68rem;text-transform:uppercase;
  letter-spacing:.14em;color:var(--ink-dim);margin-bottom:6px}
.hero .big{font-family:var(--font-mono);font-weight:700;font-variant-numeric:tabular-nums;
  font-size:clamp(2.2rem,10vw,3.4rem);line-height:1;color:var(--ink);letter-spacing:-.02em}
.hero .big .u{font-size:.34em;color:var(--amber);font-weight:500;margin-left:4px;letter-spacing:0}
.hero .foot{font-family:var(--font-mono);font-size:.72rem;color:var(--ink-faint);margin-top:8px}
.up{color:var(--green)}.down{color:var(--red)}.flat{color:var(--ink-dim)}

/* ---------- index list (reviews) ---------- */
.index{border-left:2px solid var(--amber);margin-left:4px}
.index .it{display:grid;grid-template-columns:auto 1fr;gap:14px;padding:8px 0 8px 16px;align-items:baseline}
.index .d{font-family:var(--font-mono);font-size:.8rem;color:var(--amber);white-space:nowrap;font-variant-numeric:tabular-nums}
.index .w{font-size:.9rem;color:var(--ink)}

/* ---------- entry ledger / history ---------- */
.entries{border:1px solid var(--rule);background:var(--iron-2)}
.entry{display:grid;grid-template-columns:92px 92px 1fr;gap:10px;
  padding:11px 14px;border-bottom:1px solid var(--rule);align-items:start}
.entry:last-child{border-bottom:0}
.entry .d{font-family:var(--font-mono);font-size:.78rem;color:var(--ink-dim);font-variant-numeric:tabular-nums;padding-top:2px}
.entry .body{font-size:.88rem;color:var(--ink)}
.entry .body .mut{display:block;color:var(--ink-faint);font-size:.8rem;white-space:pre-line;margin-top:3px}
.stamp-t{
  font-family:var(--font-mono);font-size:.62rem;font-weight:600;text-transform:uppercase;
  letter-spacing:.1em;color:var(--amber);background:var(--stamp);
  border:1px solid var(--amber-deep);padding:3px 6px;display:inline-block;
  transform:rotate(-1.2deg);white-space:nowrap;
}
.stamp-t.t-workout{color:var(--green);border-color:#4e7a35;background:rgba(143,212,96,.1)}
.stamp-t.t-checkin{color:#7ec3e8;border-color:#33607d;background:rgba(126,195,232,.1)}
.stamp-t.t-nutrition{color:#e8b77e;border-color:#7d5a33;background:rgba(232,183,126,.1)}
.empty{padding:22px 16px;font-family:var(--font-mono);font-size:.8rem;color:var(--ink-faint);
  text-transform:uppercase;letter-spacing:.1em}

/* ---------- forms: entry slips ---------- */
.slip{border:1px solid var(--rule);background:var(--iron-2);margin-bottom:26px;position:relative}
.slip::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--amber)}
.slip .head{display:flex;justify-content:space-between;align-items:center;
  padding:12px 16px;border-bottom:1px dashed var(--rule)}
.slip .head h3{font-family:var(--font-display);font-size:1.15rem;text-transform:uppercase;
  letter-spacing:.04em;font-weight:400}
.slip .head .no{font-family:var(--font-mono);font-size:.7rem;color:var(--ink-faint)}
.slip form{padding:14px 16px 18px}
label{display:block;font-family:var(--font-mono);font-size:.68rem;text-transform:uppercase;
  letter-spacing:.12em;color:var(--ink-dim);margin:14px 0 5px}
label .hint{display:block;text-transform:none;letter-spacing:.02em;color:var(--ink-faint);
  font-size:.7rem;margin-top:2px}
input,select,textarea{
  width:100%;background:var(--iron);border:1px solid var(--rule);border-radius:0;
  color:var(--ink);padding:11px 12px;font-size:16px;font-family:var(--font-mono);
  transition:border-color .15s;appearance:none;
}
select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%238f958f'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--amber)}
textarea{min-height:96px;line-height:1.5}
.frm-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}
@media(max-width:420px){.frm-grid{grid-template-columns:1fr 1fr}}
button{
  font-family:var(--font-display);text-transform:uppercase;letter-spacing:.08em;
  background:var(--amber);color:#191203;border:0;border-radius:0;
  padding:13px 18px;font-size:1rem;margin-top:18px;width:100%;cursor:pointer;
  transition:transform .08s, background .15s;
}
button:hover{background:#ffb840}
button:active{transform:translateY(1px)}

/* ---------- plan markdown ---------- */
.md{border:1px solid var(--rule);background:var(--iron-2);padding:6px 20px 22px}
.md h1{font-family:var(--font-display);font-size:1.6rem;text-transform:uppercase;
  letter-spacing:.02em;margin:22px 0 10px;font-weight:400;line-height:1.1}
.md h2{font-family:var(--font-display);font-size:1.15rem;text-transform:uppercase;
  letter-spacing:.03em;margin:26px 0 8px;font-weight:400;color:var(--amber)}
.md h3{font-size:.95rem;font-weight:600;margin:18px 0 6px}
.md p,.md li{margin:7px 0;font-size:.92rem;color:var(--ink)}
.md ul,.md ol{padding-left:20px}
.md strong{color:var(--amber);font-weight:600}
.md em{color:var(--ink-dim)}
.md hr{border:0;border-top:1px dashed var(--rule);margin:20px 0}
.md blockquote{border-left:3px solid var(--amber);padding:2px 0 2px 14px;color:var(--ink-dim);margin:10px 0}
.md table{margin:12px 0;border-collapse:collapse;display:block;overflow-x:auto;
  font-variant-numeric:tabular-nums;white-space:nowrap}
.md th{font-family:var(--font-mono);font-size:.68rem;text-transform:uppercase;letter-spacing:.1em;
  color:var(--ink-dim);text-align:left;padding:7px 12px;border-bottom:2px solid var(--rule-hi);background:var(--iron-3)}
.md td{padding:7px 12px;border-bottom:1px solid var(--rule);font-size:.86rem;font-family:var(--font-mono)}
.md tr:last-child td{border-bottom:0}
.md code{font-family:var(--font-mono);background:var(--iron-3);padding:1px 5px;font-size:.85em}

/* ---------- flash ---------- */
.flash{
  border:1px solid #4e7a35;background:rgba(143,212,96,.08);color:var(--green);
  font-family:var(--font-mono);font-size:.78rem;text-transform:uppercase;letter-spacing:.12em;
  padding:11px 14px;margin:14px 0 0;
}

/* ---------- bottom nav ---------- */
nav.tabs{
  position:fixed;bottom:0;left:0;right:0;z-index:10;
  background:rgba(17,19,18,.92);backdrop-filter:blur(10px);
  border-top:1px solid var(--rule-hi);
  display:flex;justify-content:space-around;
  padding:8px 4px calc(8px + env(safe-area-inset-bottom));
}
nav.tabs a{
  font-family:var(--font-mono);font-size:.64rem;text-transform:uppercase;letter-spacing:.1em;
  color:var(--ink-dim);text-decoration:none;text-align:center;padding:5px 8px;
  display:flex;flex-direction:column;gap:3px;align-items:center;min-width:56px;
}
nav.tabs a svg{width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:square}
nav.tabs a.on{color:var(--amber)}
nav.tabs a.on svg{stroke:var(--amber)}

/* ---------- load reveal ---------- */
@media (prefers-reduced-motion:no-preference){
  .rv{opacity:0;transform:translateY(10px);animation:rv .5s cubic-bezier(.2,.7,.2,1) forwards}
  .rv1{animation-delay:.03s}.rv2{animation-delay:.09s}.rv3{animation-delay:.15s}
  .rv4{animation-delay:.21s}.rv5{animation-delay:.27s}
  @keyframes rv{to{opacity:1;transform:none}}
}

/* ---------- login ---------- */
body.login{display:grid;place-items:center;padding:20px}
.gate{width:min(92vw,380px);position:relative;z-index:1}
.gate .mono{
  font-family:var(--font-display);text-transform:uppercase;line-height:.92;
  font-size:clamp(3.4rem,16vw,5rem);letter-spacing:.01em;color:var(--ink);
}
.gate .mono em{font-style:normal;color:var(--amber)}
.gate .sub{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.18em;
  text-transform:uppercase;color:var(--ink-faint);margin:10px 0 30px}
.gate form{border:1px solid var(--rule);border-left:4px solid var(--amber);
  background:var(--iron-2);padding:20px}