/* ============================================================
   CRORECALCULATOR.COM — StrongMocha House System v2, Almanac register
   Mirrors hub tokens (house.css + tokens/almanac.css) — do not
   restyle by hand; values come from the design system.
   ============================================================ */

/* ---- fonts (self-hosted, Law: no CDNs) ---- */
@font-face { font-family: 'Gelasio'; src: url('../fonts/Gelasio-400.woff2') format('woff2'); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: 'Gelasio'; src: url('../fonts/Gelasio-400i.woff2') format('woff2'); font-weight: 400; font-style: italic; font-display: swap; }
@font-face { font-family: 'Gelasio'; src: url('../fonts/Gelasio-600.woff2') format('woff2'); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: 'Gelasio'; src: url('../fonts/Gelasio-700.woff2') format('woff2'); font-weight: 700; font-style: normal; font-display: swap; }
@font-face { font-family: 'Lato'; src: url('../fonts/Lato-400.woff2') format('woff2'); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: 'Lato'; src: url('../fonts/Lato-700.woff2') format('woff2'); font-weight: 700; font-style: normal; font-display: swap; }

/* ---- house layer ---- */
:root {
  --sp-1: 8px; --sp-2: 16px; --sp-3: 24px; --sp-4: 40px; --sp-5: 64px; --sp-6: 96px;
  --ease: cubic-bezier(0.2, 0, 0, 1);
  --dur: 180ms;
  --shell-max: 1160px;
  --measure-max: 66ch;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; }

.u-label {
  font-family: var(--font-label);
  font-size: 11px;
  font-weight: var(--label-weight, 700);
  letter-spacing: .15em;
  text-transform: uppercase;
}
.u-tnum { font-variant-numeric: tabular-nums; }
.u-rule-hard { border-top: 2px solid var(--ink); }
.u-rule-soft { border-top: 1px solid var(--line); }

.attribution {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-label);
  font-size: 11px; letter-spacing: .15em; text-transform: uppercase;
  color: var(--muted); text-decoration: none;
}
.attribution::before { content: ""; width: 7px; height: 7px; background: var(--group-accent); flex: none; }
.attribution b, .attribution strong { color: var(--ink); font-weight: 700; }
.attribution:hover, .attribution:hover b { color: var(--group-accent-ink); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* ---- almanac register ---- */
.reg-almanac {
  --paper: #F7F5E7;
  --card:  #FBF9EE;
  --ink:   #1C1B16;
  --muted: #6E6A57;
  --label-ink: #55523F;
  --line:  #EAE4CC;
  --line-mid: #E3DCC4;
  --group-accent: #567D26;
  --group-accent-ink: #2F6B2A;
  --group-accent-contrast: #FFFFFF;
  --grade-caution: #BE7C24;
  --grade-neutral: #807D75;
  --marker: #8E2424;

  --font-display: 'Gelasio', Georgia, serif;
  --font-ui:      'Gelasio', Georgia, serif;
  --font-label:   'Lato', Helvetica, sans-serif;
  --font-data:    'Gelasio', Georgia, serif;
  --label-weight: 700;

  --radius: 0px;
  background: var(--paper); color: var(--ink);
  font-family: var(--font-ui);
  font-size: 17px; line-height: 1.6;
}

.grade-block {
  display: flex; align-items: center; justify-content: center;
  background: var(--group-accent); color: #fff;
  font-family: var(--font-display); font-variant-numeric: tabular-nums;
}
.grade-block.caution { background: var(--grade-caution); }
.grade-block.neutral { background: var(--grade-neutral); }

.bench-track { position: relative; height: 16px; background: #F1EDD8; border: 1px solid var(--line-mid); }
.bench-fill { position: absolute; inset: 2px auto 2px 2px; background: var(--group-accent); }
.bench-fill.caution { background: var(--grade-caution); }
.bench-marker { position: absolute; top: 0; bottom: 0; width: 3px; background: var(--marker); }

/* ============================================================
   Site components
   ============================================================ */

.shell { max-width: var(--shell-max); margin: 0 auto; padding: 0 var(--sp-3); }
@media (max-width: 640px) { .shell { padding: 0 var(--sp-2); } }

a { color: var(--group-accent-ink); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--ink); }

h1, h2, h3 { font-family: var(--font-display); line-height: 1.15; margin: 0 0 var(--sp-2); font-weight: 700; }
h1 { font-size: clamp(30px, 5.4vw, 52px); letter-spacing: -0.01em; }
h2 { font-size: clamp(22px, 3.2vw, 30px); }
h3 { font-size: 19px; font-weight: 600; }
p { margin: 0 0 var(--sp-2); max-width: var(--measure-max); }

/* ---- masthead ---- */
.masthead { border-bottom: 2px solid var(--ink); position: relative; }
.masthead::after { content: ""; display: block; height: 1px; background: var(--line-mid); margin-top: 3px; }
.masthead-inner { display: flex; align-items: center; gap: var(--sp-2); padding: 14px 0; flex-wrap: wrap; }
.site-mark { width: 44px; height: 44px; font-size: 15px; font-weight: 700; flex: none; letter-spacing: .02em; }
.site-name { font-family: var(--font-display); font-weight: 700; font-size: 24px; color: var(--ink); text-decoration: none; line-height: 1.1; }
.site-name small { display: block; font-family: var(--font-label); font-weight: 700; font-size: 10px; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); margin-top: 3px; }
.masthead-date { margin-left: auto; font-style: italic; color: var(--muted); font-size: 14px; }
@media (max-width: 640px) { .masthead-date { display: none; } }

/* ---- calculator nav ---- */
.tool-nav { border-bottom: 1px solid var(--line-mid); background: var(--card); }
.tool-nav-inner { display: flex; gap: var(--sp-3); overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
.tool-nav-inner::-webkit-scrollbar { display: none; }
.tool-nav a {
  font-family: var(--font-label); font-size: 11px; font-weight: 700;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--label-ink); text-decoration: none;
  padding: 12px 2px; white-space: nowrap;
  border-bottom: 2px solid transparent;
  min-height: 44px; display: inline-flex; align-items: center;
}
.tool-nav a:hover { color: var(--ink); }
.tool-nav a[aria-current="page"] { color: var(--group-accent-ink); border-bottom-color: var(--group-accent); }

/* ---- page header ---- */
.page-head { padding: var(--sp-5) 0 var(--sp-4); }
.kicker { color: var(--group-accent-ink); margin-bottom: var(--sp-2); display: block; }
.dateline { font-style: italic; color: var(--muted); font-size: 15px; }
.page-head .lede { font-size: 19px; color: var(--muted); max-width: 58ch; }

/* ---- calculator layout ---- */
.calc-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 4fr); gap: var(--sp-4); align-items: start; padding-bottom: var(--sp-4); }
@media (max-width: 900px) { .calc-grid { grid-template-columns: minmax(0, 1fr); } }

.panel { background: var(--card); border: 1px solid var(--line-mid); padding: var(--sp-3); }
.panel-title { border-bottom: 2px solid var(--ink); padding-bottom: 10px; margin-bottom: var(--sp-3); color: var(--label-ink); }

/* ---- inputs ---- */
.field { margin-bottom: var(--sp-3); }
.field:last-child { margin-bottom: 0; }
.field-row { display: flex; align-items: baseline; justify-content: space-between; gap: var(--sp-2); margin-bottom: 10px; flex-wrap: wrap; }
.field-row label { color: var(--label-ink); }
.field-value { display: inline-flex; align-items: baseline; gap: 6px; border: 1px solid var(--line-mid); background: #fff; padding: 6px 10px; }
.field-value .unit { font-family: var(--font-label); font-size: 10px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.field-value input {
  font-family: var(--font-data); font-variant-numeric: tabular-nums;
  font-size: 18px; font-weight: 600; color: var(--ink);
  border: 0; background: transparent; width: 7.5ch; text-align: right; padding: 0;
}
.field-value input:focus { outline: none; }
.field-value:focus-within { border-color: var(--group-accent); box-shadow: 0 0 0 1px var(--group-accent); }
.field-hint { font-style: italic; font-size: 13px; color: var(--muted); margin-top: 7px; }

input[type="range"] { -webkit-appearance: none; appearance: none; width: 100%; height: 28px; background: transparent; margin: 0; cursor: pointer; }
input[type="range"]::-webkit-slider-runnable-track { height: 4px; background: var(--line-mid); }
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 18px; height: 18px; margin-top: -7px;
  background: var(--group-accent); border: 2px solid var(--paper);
  outline: 1px solid var(--group-accent-ink); border-radius: 0;
}
input[type="range"]::-moz-range-track { height: 4px; background: var(--line-mid); }
input[type="range"]::-moz-range-thumb { width: 14px; height: 14px; background: var(--group-accent); border: 2px solid var(--paper); outline: 1px solid var(--group-accent-ink); border-radius: 0; }
input[type="range"]:focus-visible { outline: 2px solid var(--group-accent-ink); outline-offset: 4px; }

/* ---- results ---- */
.result-hero { display: flex; align-items: stretch; gap: var(--sp-2); margin-bottom: var(--sp-3); }
.result-hero .grade-block { width: 64px; min-height: 64px; font-size: 17px; font-weight: 700; flex: none; }
.result-hero-figures { min-width: 0; }
.result-label { color: var(--label-ink); display: block; margin-bottom: 4px; }
.result-value { font-family: var(--font-data); font-variant-numeric: tabular-nums; font-size: clamp(30px, 4.4vw, 44px); font-weight: 700; line-height: 1.05; overflow-wrap: anywhere; }
.result-words { font-style: italic; color: var(--muted); font-size: 14px; margin-top: 5px; }

.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); border-top: 1px solid var(--line-mid); border-bottom: 1px solid var(--line-mid); margin-bottom: var(--sp-3); }
.stat { padding: 14px 16px 14px 0; border-left: 1px solid var(--line-mid); padding-left: 16px; }
.stat:first-child { border-left: 0; padding-left: 0; }
.stat .u-label { color: var(--label-ink); display: block; margin-bottom: 4px; }
.stat b { font-family: var(--font-data); font-variant-numeric: tabular-nums; font-size: 20px; font-weight: 700; display: block; overflow-wrap: anywhere; }
.stat i { font-size: 12.5px; color: var(--muted); }
@media (max-width: 640px) {
  .stat-row { grid-template-columns: 1fr 1fr; }
  .stat { border-left: 0; padding-left: 0; border-top: 1px solid var(--line); }
  .stat:nth-child(-n+2) { border-top: 0; }
}

.bench { margin-bottom: var(--sp-3); }
.bench-legend { display: flex; gap: var(--sp-3); flex-wrap: wrap; margin-top: 8px; font-size: 13px; color: var(--muted); }
.bench-legend span { display: inline-flex; align-items: center; gap: 7px; }
.bench-legend i { width: 10px; height: 10px; flex: none; font-style: normal; }
.bench-legend .k-invested i { background: #F1EDD8; border: 1px solid var(--line-mid); }
.bench-legend .k-gain i { background: var(--group-accent); }
.bench-legend .k-caution i { background: var(--grade-caution); }

/* ---- ledger table ---- */
.ledger-wrap { overflow-x: auto; }
table.ledger { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.ledger caption { text-align: left; padding-bottom: 10px; color: var(--label-ink); }
.ledger th {
  font-family: var(--font-label); font-size: 10.5px; font-weight: 700;
  letter-spacing: .13em; text-transform: uppercase; color: var(--label-ink);
  text-align: right; padding: 8px 10px; border-bottom: 2px solid var(--ink);
}
.ledger th:first-child, .ledger td:first-child { text-align: left; padding-left: 0; }
.ledger th:last-child, .ledger td:last-child { padding-right: 0; }
.ledger td { padding: 8px 10px; border-bottom: 1px solid var(--line); text-align: right; font-size: 15px; white-space: nowrap; }
.ledger tr.milestone td { background: #F2EFD9; font-weight: 700; }
.ledger tr.milestone td:first-child { color: var(--group-accent-ink); }

/* ---- converter (home hero) ---- */
.converter { background: var(--card); border: 1px solid var(--line-mid); padding: var(--sp-3); }
.conv-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--sp-2); }
.conv-cell { border: 1px solid var(--line-mid); background: #fff; padding: 12px 14px; }
.conv-cell label { display: block; margin-bottom: 6px; color: var(--label-ink); }
.conv-cell input {
  font-family: var(--font-data); font-variant-numeric: tabular-nums;
  font-size: 22px; font-weight: 600; color: var(--ink);
  border: 0; background: transparent; width: 100%; padding: 0;
}
.conv-cell input:focus { outline: none; }
.conv-cell:focus-within { border-color: var(--group-accent); box-shadow: 0 0 0 1px var(--group-accent); }
.conv-words { border-top: 1px solid var(--line-mid); margin-top: var(--sp-2); padding-top: var(--sp-2); }
.conv-words .in-notation { font-family: var(--font-data); font-variant-numeric: tabular-nums; font-size: clamp(20px, 3vw, 28px); font-weight: 700; overflow-wrap: anywhere; }
.conv-words .in-words { font-style: italic; color: var(--muted); margin-top: 4px; }

/* ---- tool directory (home) ---- */
.tool-index { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: var(--sp-2); }
.tool-index li { border: 1px solid var(--line-mid); background: var(--card); }
.tool-index a { display: flex; gap: 14px; padding: 18px; text-decoration: none; color: var(--ink); height: 100%; }
.tool-index a:hover { outline: 2px solid var(--group-accent); outline-offset: -2px; }
.tool-index .grade-block { width: 46px; height: 46px; font-size: 13px; font-weight: 700; flex: none; }
.tool-index h3 { margin: 0 0 4px; font-size: 17.5px; }
.tool-index p { margin: 0; font-size: 14px; color: var(--muted); line-height: 1.45; }

/* ---- prose (legal + explainer copy) ---- */
.prose { max-width: var(--measure-max); padding-bottom: var(--sp-4); }
.prose h2 { margin-top: var(--sp-4); }
.prose h3 { margin-top: var(--sp-3); }
.prose ul, .prose ol { padding-left: 1.4em; margin: 0 0 var(--sp-2); }
.prose li { margin-bottom: 6px; }
.prose .lede { font-size: 19px; color: var(--muted); }
.note {
  border: 1px solid var(--line-mid); border-left: 3px solid var(--grade-caution);
  background: var(--card); padding: 14px 16px; font-size: 14.5px; color: var(--muted);
  margin: var(--sp-3) 0; font-style: italic; max-width: var(--measure-max);
}
.note b { color: var(--ink); font-style: normal; }

/* ---- FAQ ---- */
.faq { border-top: 2px solid var(--ink); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer; padding: 16px 0; font-family: var(--font-display);
  font-weight: 600; font-size: 17px; list-style: none; display: flex; justify-content: space-between; gap: var(--sp-2);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--group-accent-ink); font-weight: 700; flex: none; }
.faq details[open] summary::after { content: "−"; }
.faq .faq-a { padding: 0 0 16px; color: var(--muted); max-width: var(--measure-max); }
.faq .faq-a p { margin-bottom: 10px; }

/* ---- section spacing ---- */
.section { padding: var(--sp-4) 0; }
.section + .section { border-top: 1px solid var(--line-mid); }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: var(--sp-2); flex-wrap: wrap; margin-bottom: var(--sp-3); }
.section-head .u-label { color: var(--label-ink); }

/* ---- footer ---- */
.site-footer { border-top: 2px solid var(--ink); margin-top: var(--sp-5); background: var(--card); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: var(--sp-4); padding: var(--sp-4) 0; }
@media (max-width: 820px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; gap: var(--sp-3); } }
.footer-grid .u-label { color: var(--label-ink); display: block; margin-bottom: 12px; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin-bottom: 9px; }
.footer-grid a { color: var(--muted); text-decoration: none; font-size: 15px; }
.footer-grid a:hover { color: var(--group-accent-ink); text-decoration: underline; }
.footer-about p { font-size: 14.5px; color: var(--muted); }
.footer-bottom { border-top: 1px solid var(--line-mid); padding: var(--sp-2) 0; display: flex; justify-content: space-between; align-items: center; gap: var(--sp-2); flex-wrap: wrap; }
.footer-bottom .fine { font-style: italic; font-size: 13px; color: var(--muted); }

/* ---- skip link ---- */
.skip-link { position: absolute; left: -9999px; top: 0; background: var(--ink); color: #fff; padding: 10px 16px; z-index: 10; }
.skip-link:focus { left: 0; }

/* ---- Almanac AI (BYOK chat) ---- */
.ai-setup { display: grid; grid-template-columns: minmax(0,1fr) auto auto; gap: var(--sp-2); align-items: end; }
@media (max-width: 700px) { .ai-setup { grid-template-columns: 1fr; } }
.ai-setup .field-value { width: 100%; }
.ai-setup .field-value input { width: 100%; text-align: left; font-size: 15px; font-weight: 400; font-family: var(--font-label); letter-spacing: .02em; }
.ai-key-status { font-style: italic; font-size: 13.5px; color: var(--muted); margin-top: 8px; }
.ai-key-status b { color: var(--group-accent-ink); font-style: normal; }
.btn {
  font-family: var(--font-label); font-size: 11px; font-weight: 700;
  letter-spacing: .14em; text-transform: uppercase; cursor: pointer;
  background: var(--group-accent); color: #fff; border: 0; padding: 13px 20px;
  min-height: 44px;
}
.btn:hover { background: var(--group-accent-ink); }
.btn.ghost { background: transparent; color: var(--label-ink); border: 1px solid var(--line-mid); }
.btn.ghost:hover { color: var(--marker); border-color: var(--marker); background: transparent; }
.btn:disabled { opacity: .45; cursor: not-allowed; }
select.ai-model {
  font-family: var(--font-ui); font-size: 15px; color: var(--ink);
  border: 1px solid var(--line-mid); background: #fff; padding: 11px 12px; min-height: 44px;
}
.chat-log { display: flex; flex-direction: column; gap: var(--sp-2); padding: var(--sp-3) 0; min-height: 120px; }
.chat-msg { max-width: 62ch; padding: 14px 18px; line-height: 1.55; font-size: 16px; overflow-wrap: anywhere; }
.chat-msg.user { align-self: flex-end; background: #EFEBD3; border: 1px solid var(--line-mid); }
.chat-msg.assistant { align-self: flex-start; background: var(--card); border: 1px solid var(--line-mid); border-left: 3px solid var(--group-accent); white-space: pre-wrap; }
.chat-msg.error { align-self: flex-start; background: var(--card); border: 1px solid var(--line-mid); border-left: 3px solid var(--marker); color: var(--muted); font-style: italic; }
.chat-msg .u-label { display: block; margin-bottom: 6px; color: var(--label-ink); }
.chat-form { display: flex; gap: var(--sp-2); align-items: stretch; border-top: 2px solid var(--ink); padding-top: var(--sp-2); }
.chat-form textarea {
  flex: 1; resize: none; font-family: var(--font-ui); font-size: 16px; color: var(--ink);
  border: 1px solid var(--line-mid); background: #fff; padding: 12px 14px; min-height: 52px;
}
.chat-form textarea:focus { outline: none; border-color: var(--group-accent); box-shadow: 0 0 0 1px var(--group-accent); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: var(--sp-2) 0; }
.chips button {
  font-family: var(--font-ui); font-size: 13.5px; font-style: italic; color: var(--label-ink);
  background: transparent; border: 1px solid var(--line-mid); padding: 7px 12px; cursor: pointer;
}
.chips button:hover { border-color: var(--group-accent); color: var(--group-accent-ink); }
.ai-thinking { font-style: italic; color: var(--muted); font-size: 14px; }