/* ===========================================================================
   CALLUS : design tokens (locked from assets/avatar.png + assets/banner.png)
   ---------------------------------------------------------------------------
   Palette   : terracotta  #E4381C  (avatar background, sampled 231,44,21 adj.)
               ink black   #150D0A  (avatar plate outline)
               cream       #F5DFB0  (avatar plate fill)
               gold        #D8BE8F  (banner embossed plate)
               void        #150E0A  (page background, darker than avatar bg
                                     so the terracotta reads as an accent, not
                                     the whole surface)
   Type      : Fraunces 600/700/900, display, policy-document authority
               IBM Plex Sans 400/500/600, body / UI
               IBM Plex Mono 400/500, CA, ledger figures, formula, labels
               (self-hosted woff2 in assets/fonts, no runtime remote fetch)
   Spacing   : 4 · 8 · 12 · 16 · 24 · 32 · 48 · 64 · 96 · 128 (px)
   Radius    : 20px panels · 14px controls · 8px tags · 999px status pill only
   Motion    : "layer settle", cubic-bezier(.16,.84,.32,1), 420ms panels and
               plates, 260ms numeric tweens. prefers-reduced-motion disables
               all of it and snaps to end state.
   =========================================================================== */

@font-face{font-family:"Fraunces";src:url("assets/fonts/fraunces-600.woff2") format("woff2");font-weight:600;font-style:normal;font-display:swap;}
@font-face{font-family:"Fraunces";src:url("assets/fonts/fraunces-700.woff2") format("woff2");font-weight:700;font-style:normal;font-display:swap;}
@font-face{font-family:"Fraunces";src:url("assets/fonts/fraunces-900.woff2") format("woff2");font-weight:900;font-style:normal;font-display:swap;}
@font-face{font-family:"IBM Plex Sans";src:url("assets/fonts/plexsans-400.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap;}
@font-face{font-family:"IBM Plex Sans";src:url("assets/fonts/plexsans-500.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap;}
@font-face{font-family:"IBM Plex Sans";src:url("assets/fonts/plexsans-600.woff2") format("woff2");font-weight:600;font-style:normal;font-display:swap;}
@font-face{font-family:"IBM Plex Mono";src:url("assets/fonts/plexmono-400.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap;}
@font-face{font-family:"IBM Plex Mono";src:url("assets/fonts/plexmono-500.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap;}

:root{
  --clr-void:#150E0A;
  --clr-void-2:#1D130E;
  --clr-void-3:#251811;
  --clr-terracotta:#E4381C;
  --clr-terracotta-deep:#A32A12;
  --clr-terracotta-dim:rgba(228,56,28,.16);
  --clr-cream:#F5DFB0;
  --clr-cream-soft:#FBF1DC;
  --clr-ink:#150D0A;
  --clr-gold:#D8BE8F;
  --text-hi:#F7F0E4;
  --text-body:#C9B69D;
  --text-faint:#8C7A64;
  --line:rgba(245,223,176,.14);
  --line-strong:rgba(245,223,176,.28);

  --font-display:"Fraunces",Georgia,serif;
  --font-sans:"IBM Plex Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-mono:"IBM Plex Mono","SFMono-Regular",Consolas,monospace;

  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px;
  --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px; --sp-10:128px;

  --radius-lg:20px; --radius-md:14px; --radius-sm:8px; --radius-pill:999px;

  --ease:cubic-bezier(.16,.84,.32,1);
  --dur-panel:420ms; --dur-num:260ms;
}

@media (prefers-reduced-motion:reduce){
  :root{ --dur-panel:1ms; --dur-num:1ms; }
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion:reduce){ html{scroll-behavior:auto;} }

body{
  margin:0;
  background:var(--clr-void);
  color:var(--text-body);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

img{display:block;max-width:100%;}
a{color:inherit;}
h1,h2,h3{color:var(--text-hi);font-family:var(--font-display);margin:0;text-wrap:balance;}
p{margin:0;}
ol,ul{margin:0;padding:0;list-style:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
sup{font-size:.65em;}

.eyebrow{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--clr-terracotta);
  margin:0 0 var(--sp-3);
}

/* ---------- inline error banner (injected by head script) ---------- */
#boot-error-banner{
  position:fixed;inset:auto 0 0 0;z-index:9999;
  background:#4A0E05;color:#FFE9DC;
  font:600 13px/1.5 var(--font-mono);
  padding:12px 16px;text-align:center;
  border-top:2px solid var(--clr-terracotta);
}

/* ===========================================================================
   POLICY STRIP: the header IS the policy document header, sticky, holds the
   CA above the fold at all times.
   =========================================================================== */
.policy-strip{
  position:sticky;top:0;z-index:100;
  background:var(--clr-cream-soft);
  color:var(--clr-ink);
  border-bottom:1px dashed rgba(21,13,10,.3);
  box-shadow:0 0 0 rgba(0,0,0,0);
  transition:box-shadow var(--dur-panel) var(--ease);
}
.policy-strip.is-scrolled{ box-shadow:0 12px 28px -16px rgba(0,0,0,.55); }

.strip-row{
  display:flex;align-items:center;gap:var(--sp-4);
  padding:var(--sp-3) var(--sp-5);
  max-width:1360px;margin:0 auto;
}
.strip-row--top{ padding-bottom:var(--sp-2); justify-content:space-between; }
.strip-row--ca{ padding-top:0;padding-bottom:var(--sp-2); border-top:1px solid rgba(21,13,10,.08); flex-wrap:wrap; }
.strip-row--nav{ padding-top:var(--sp-2); border-top:1px solid rgba(21,13,10,.08); justify-content:space-between; flex-wrap:wrap; gap:var(--sp-3); }

.brand{ display:flex; align-items:baseline; gap:var(--sp-3); text-decoration:none; }
.brand-mark{ font-family:var(--font-display); font-weight:900; font-size:20px; letter-spacing:-.01em; }
.brand-sub{ font-family:var(--font-mono); font-size:10px; letter-spacing:.14em; text-transform:uppercase; color:rgba(21,13,10,.55); }

.status-chip{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;
  padding:6px 12px;border-radius:var(--radius-pill);
  background:rgba(228,56,28,.1);color:var(--clr-terracotta-deep);
  border:1px solid rgba(228,56,28,.28);
}
.status-dot{ width:6px;height:6px;border-radius:50%;background:var(--clr-terracotta); box-shadow:0 0 0 3px rgba(228,56,28,.18); }

.ca-label{ font-family:var(--font-mono); font-size:10px; letter-spacing:.14em; text-transform:uppercase; color:rgba(21,13,10,.55); flex-shrink:0; }
.ca-value{
  display:inline-flex;align-items:center;gap:var(--sp-3);
  font-family:var(--font-mono);font-size:14px;font-weight:500;
  background:rgba(21,13,10,.06);
  border:1px solid rgba(21,13,10,.18);
  border-radius:var(--radius-sm);
  padding:8px 14px;
  cursor:pointer;
  transition:background var(--dur-panel) var(--ease), border-color var(--dur-panel) var(--ease);
  min-width:0;
}
.ca-value:hover{ background:rgba(21,13,10,.1); border-color:rgba(21,13,10,.3); }
.ca-value:active{ transform:translateY(1px); }
.ca-text{ white-space:nowrap; overflow:hidden; text-overflow:ellipsis; max-width:44vw; }
.ca-icon{ flex-shrink:0; opacity:.85; transition:opacity var(--dur-panel) var(--ease), transform var(--dur-panel) var(--ease); }
.ca-value.is-copied .ca-icon{ opacity:1; transform:scale(1.1); }
.ca-state{
  font-family:var(--font-mono);font-size:9px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--clr-terracotta-deep); flex-shrink:0;
}
.ca-value.is-copied .ca-state{ color:#1D7A3E; }
.ca-value.is-copied{ border-color:#1D7A3E; background:rgba(29,122,62,.1); }

.chain-tag{ font-family:var(--font-mono); font-size:10px; letter-spacing:.1em; text-transform:uppercase; color:rgba(21,13,10,.5); margin-left:auto; white-space:nowrap; }

.nav-links{ display:flex; gap:var(--sp-5); }
.nav-links a{ font-family:var(--font-mono); font-size:12px; letter-spacing:.06em; text-decoration:none; color:rgba(21,13,10,.62); transition:color var(--dur-panel) var(--ease); }
.nav-links a:hover{ color:var(--clr-ink); }

.nav-controls{ display:flex; align-items:center; gap:var(--sp-3); }
.icon-btn{
  display:inline-flex;align-items:center;gap:8px;
  text-decoration:none;
  border-radius:var(--radius-pill);
  transition:transform var(--dur-panel) var(--ease);
}
.icon-btn img{ width:32px;height:32px; }
.icon-btn:hover{ transform:translateY(-2px); }
.buy-btn{
  background:var(--clr-ink);color:var(--clr-cream-soft);
  padding:6px 16px 6px 6px;
  font-family:var(--font-sans);font-weight:600;font-size:13px;
}
.buy-btn img{ width:26px;height:26px; }
.buy-btn:hover{ background:var(--clr-terracotta-deep); color:#fff; }

/* ===========================================================================
   HERO
   =========================================================================== */
main{ display:block; }

.hero{
  max-width:1360px;margin:0 auto;
  padding:var(--sp-9) var(--sp-5) var(--sp-8);
}
.hero h1{
  font-weight:900;
  font-size:clamp(36px,5.6vw,76px);
  line-height:.98;
  letter-spacing:-.02em;
  max-width:16ch;
  margin-bottom:var(--sp-5);
}
.hero-sub{
  font-size:clamp(16px,1.6vw,19px);
  line-height:1.65;
  color:var(--text-body);
  max-width:56ch;
  margin-bottom:var(--sp-7);
}

.hero-stats{ display:flex; flex-wrap:wrap; gap:var(--sp-7); margin:0; padding-top:var(--sp-6); border-top:1px solid var(--line); }
.hero-stats>div{ display:flex; flex-direction:column; gap:6px; }
.hero-stats dt{ font-family:var(--font-mono); font-size:10px; letter-spacing:.14em; text-transform:uppercase; color:var(--text-faint); }
.hero-stats dd{ margin:0; font-family:var(--font-mono); font-size:clamp(20px,2.4vw,26px); font-weight:500; color:var(--clr-cream); }

/* ===========================================================================
   SECTION SCAFFOLD
   =========================================================================== */
section{ max-width:1360px; margin:0 auto; padding:var(--sp-8) var(--sp-5); }
.section-head{ margin-bottom:var(--sp-7); max-width:60ch; }
.section-head h2{ font-weight:700; font-size:clamp(28px,3.6vw,44px); line-height:1.05; letter-spacing:-.015em; }

/* reveal-on-scroll */
.reveal{ opacity:0; transform:translateY(18px); transition:opacity 640ms var(--ease), transform 640ms var(--ease); }
.reveal.is-in{ opacity:1; transform:none; }
@media (prefers-reduced-motion:reduce){ .reveal{ opacity:1; transform:none; transition:none; } }

/* ===========================================================================
   CALCULATOR
   =========================================================================== */
.calc{ padding-top:0; }
.calc-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:var(--sp-8);
  background:var(--clr-void-2);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:var(--sp-7);
}

.calc-inputs{ display:flex; flex-direction:column; gap:var(--sp-7); }
.field{ display:flex; flex-direction:column; gap:var(--sp-3); }
.field-head{ display:flex; align-items:baseline; justify-content:space-between; gap:var(--sp-3); }
.field-head label{ font-family:var(--font-sans); font-weight:500; font-size:14px; color:var(--text-hi); }
.field-value{ font-family:var(--font-mono); font-size:15px; font-weight:500; color:var(--clr-terracotta); font-variant-numeric:tabular-nums; }

input[type="range"]{
  -webkit-appearance:none;appearance:none;
  width:100%; height:6px; border-radius:var(--radius-pill);
  background:linear-gradient(90deg,var(--clr-terracotta) 0%, var(--clr-terracotta) var(--fill,50%), var(--clr-void-3) var(--fill,50%), var(--clr-void-3) 100%);
  outline:none; cursor:pointer;
}
input[type="range"]::-webkit-slider-thumb{
  -webkit-appearance:none;appearance:none;
  width:20px;height:20px;border-radius:50%;
  background:var(--clr-cream);
  border:3px solid var(--clr-terracotta-deep);
  box-shadow:0 2px 8px rgba(0,0,0,.5);
  cursor:pointer;
  transition:transform 160ms var(--ease);
}
input[type="range"]::-webkit-slider-thumb:hover{ transform:scale(1.12); }
input[type="range"]::-moz-range-thumb{
  width:20px;height:20px;border-radius:50%;
  background:var(--clr-cream);
  border:3px solid var(--clr-terracotta-deep);
  cursor:pointer;
}
input[type="range"]::-moz-range-track{ height:6px;border-radius:var(--radius-pill);background:var(--clr-void-3); }
input[type="range"]::-moz-range-progress{ height:6px;border-radius:var(--radius-pill);background:var(--clr-terracotta); }

.field-scale{ display:flex; justify-content:space-between; font-family:var(--font-mono); font-size:11px; color:var(--text-faint); }

.formula-note{
  font-family:var(--font-mono); font-size:12.5px; line-height:1.7; color:var(--text-faint);
  padding-top:var(--sp-5); border-top:1px solid var(--line);
}

.calc-output{
  display:flex; flex-direction:column; gap:var(--sp-6);
  background:var(--clr-void); border:1px solid var(--line); border-radius:var(--radius-md);
  padding:var(--sp-6);
}
.output-label{ display:block; font-family:var(--font-mono); font-size:11px; letter-spacing:.12em; text-transform:uppercase; color:var(--text-faint); margin-bottom:8px; }
.output-number{
  display:block; font-family:var(--font-mono); font-weight:500;
  font-size:clamp(40px,5vw,64px); line-height:1; color:var(--clr-cream);
  font-variant-numeric:tabular-nums;
}
.output-number--sm{ font-size:clamp(24px,3vw,32px); color:var(--text-hi); }
.output-secondary{ padding-top:var(--sp-5); border-top:1px solid var(--line); }

.layers{
  position:relative;
  height:120px;
  display:flex;align-items:flex-end;justify-content:center;
  padding-top:var(--sp-4); border-top:1px solid var(--line);
}
.plate{
  position:absolute;
  width:64px;height:64px;
  background:var(--clr-cream);
  border:3px solid var(--clr-ink);
  border-radius:18px;
  transform:rotate(45deg);
  box-shadow:0 6px 14px -6px rgba(0,0,0,.6);
  transition:transform var(--dur-panel) var(--ease), bottom var(--dur-panel) var(--ease), opacity var(--dur-panel) var(--ease);
}
.plate-extra{
  position:absolute; top:0; right:0;
  font-family:var(--font-mono); font-size:11px; letter-spacing:.08em;
  color:var(--clr-terracotta); background:var(--clr-terracotta-dim);
  border:1px solid rgba(228,56,28,.3); border-radius:var(--radius-pill);
  padding:4px 10px;
}
.layers-caption{ display:block; text-align:center; font-family:var(--font-mono); font-size:11px; letter-spacing:.1em; text-transform:uppercase; color:var(--text-faint); }

/* ===========================================================================
   METHOD: three-stage process strip
   =========================================================================== */
.method-steps{
  display:grid; grid-template-columns:repeat(3,1fr); gap:var(--sp-6);
  position:relative;
}
.method-steps::before{
  content:"";position:absolute;top:20px;left:0;right:0;height:1px;
  background:repeating-linear-gradient(90deg,var(--line-strong) 0 8px,transparent 8px 16px);
  z-index:0;
}
.method-steps li{ position:relative; z-index:1; display:flex; flex-direction:column; gap:var(--sp-3); }
.step-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:50%;
  background:var(--clr-void); border:1px solid var(--line-strong);
  font-family:var(--font-mono); font-size:13px; color:var(--clr-terracotta);
}
.method-steps h3{ font-family:var(--font-display); font-weight:700; font-size:20px; color:var(--text-hi); }
.method-steps p{ font-size:14.5px; color:var(--text-body); line-height:1.65; max-width:34ch; }

/* ===========================================================================
   LEDGER
   =========================================================================== */
.table-wrap{
  overflow-x:auto;
  border:1px solid var(--line); border-radius:var(--radius-lg);
  background:var(--clr-void-2);
}
table{ width:100%; border-collapse:collapse; min-width:720px; }
thead th{
  text-align:left; font-family:var(--font-mono); font-size:11px; letter-spacing:.1em; text-transform:uppercase;
  color:var(--text-faint); font-weight:500; padding:var(--sp-4) var(--sp-5);
  border-bottom:1px solid var(--line-strong);
}
tbody td{
  padding:var(--sp-4) var(--sp-5);
  font-size:14.5px; color:var(--text-body);
  border-bottom:1px solid var(--line);
  font-variant-numeric:tabular-nums;
}
tbody tr:last-child td{ border-bottom:0; }
tbody tr{ transition:background var(--dur-panel) var(--ease); }
tbody tr:hover{ background:rgba(245,223,176,.03); }
td.mono, th.mono{ font-family:var(--font-mono); }
td.policy-id{ font-family:var(--font-mono); color:var(--clr-cream); }

.status-pill{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;
  padding:4px 10px;border-radius:var(--radius-pill);
  border:1px solid;
}
.status-pill.is-active{ color:#5FCB8B; border-color:rgba(95,203,139,.4); background:rgba(95,203,139,.08); }
.status-pill.is-settled{ color:var(--clr-gold); border-color:rgba(216,190,143,.4); background:rgba(216,190,143,.08); }
.status-pill.is-review{ color:var(--clr-terracotta); border-color:rgba(228,56,28,.4); background:var(--clr-terracotta-dim); }

/* ===========================================================================
   FOOTER
   =========================================================================== */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--clr-void-2);
}
.footer-inner{
  max-width:1360px;margin:0 auto;
  padding:var(--sp-8) var(--sp-5) var(--sp-6);
  display:grid; grid-template-columns:1.2fr .8fr; gap:var(--sp-8);
}
.footer-brand .brand-mark{ color:var(--clr-cream); font-size:22px; }
.footer-desc{ margin-top:var(--sp-3); max-width:44ch; font-size:14.5px; color:var(--text-body); line-height:1.65; }
.footer-ca{
  margin-top:var(--sp-5);
  display:inline-flex; align-items:center; gap:var(--sp-3);
  font-family:var(--font-mono); font-size:13px;
  border:1px solid var(--line-strong); border-radius:var(--radius-sm);
  padding:8px 14px; cursor:pointer; color:var(--clr-cream);
  transition:border-color var(--dur-panel) var(--ease);
}
.footer-ca:hover{ border-color:var(--clr-terracotta); }
.footer-ca.is-copied{ border-color:#5FCB8B; color:#5FCB8B; }

.footer-controls{ display:flex; flex-direction:column; gap:var(--sp-5); align-items:flex-start; }
.footer-nav{ display:flex; gap:var(--sp-5); }
.footer-nav a{ font-family:var(--font-mono); font-size:12px; text-decoration:none; color:var(--text-faint); }
.footer-nav a:hover{ color:var(--clr-cream); }
.footer-social{ display:flex; gap:var(--sp-3); }
.footer-social .icon-btn img{ width:36px;height:36px; }

.footer-meta{
  max-width:1360px;margin:0 auto;
  padding:var(--sp-5) var(--sp-5) var(--sp-7);
  border-top:1px solid var(--line);
  display:flex; flex-wrap:wrap; justify-content:space-between; gap:var(--sp-3);
  font-family:var(--font-mono); font-size:11px; color:var(--text-faint);
}
#canary{ color:var(--clr-terracotta); }
#canary.is-ok{ color:#5FCB8B; }

.disclosure{
  max-width:1360px;margin:0 auto;
  padding:0 var(--sp-5) var(--sp-8);
  font-size:12px; color:var(--text-faint); line-height:1.7; max-width:70ch;
}

/* ===========================================================================
   RESPONSIVE
   =========================================================================== */
@media (max-width:920px){
  .calc-grid{ grid-template-columns:1fr; }
  .method-steps{ grid-template-columns:1fr; gap:var(--sp-7); }
  .method-steps::before{ display:none; }
  .footer-inner{ grid-template-columns:1fr; }
  .footer-controls{ align-items:flex-start; }
}

@media (max-width:640px){
  .strip-row{ padding-left:var(--sp-4); padding-right:var(--sp-4); }
  .brand-sub{ display:none; }
  .status-chip{ font-size:9px; padding:5px 10px; white-space:nowrap; }
  .ca-text{ max-width:52vw; }
  .chain-tag{ display:none; }
  .buy-btn span{ display:none; }
  .buy-btn{ padding:6px; }
  .hero{ padding-top:var(--sp-7); padding-bottom:var(--sp-7); }
  section{ padding:var(--sp-7) var(--sp-4); }
  .calc-grid{ padding:var(--sp-5); gap:var(--sp-6); }
  .hero-stats{ gap:var(--sp-5); }
}

@media (max-width:400px){
  .strip-row--nav{ gap:var(--sp-2); }
  .nav-links{ gap:var(--sp-3); }
  .hero h1{ max-width:none; }
}

.brand-logo{
  border-radius:8px; flex-shrink:0; display:inline-block; vertical-align:middle;
  object-fit:cover;
}
.footer-brand .brand-logo{ margin-bottom:var(--sp-3); display:block; }