/* ==========================================================================
   LEDGER — design system for LedgerFX.
   Concept: an editorial financial statement. Warm paper, ink, one vermilion accent.
   Figures are set in tabular mono; negatives use accounting parentheses, not just colour.
   Green/red are reserved for profit/loss. Three money "zones" look different on purpose
   (cash you can withdraw / realized P&L / illustrative examples) so they can't be confused.
   ========================================================================== */

:root {
  --paper:   #f3ecdc;
  --sheet:   #fbf8f0;
  --sheet-2: #f6f0e2;
  --ink:     #17140f;
  --ink-2:   #4b453a;
  --ink-3:   #7a7265;
  --rule:    #d9cfb9;
  --rule-2:  #e7dfcc;
  --accent:  #d4381c;
  --accent-ink: #ffffff;
  --pos:     #1d6a3a;
  --neg:     #a8241c;
  --warn:    #8a5a00;
  --focus:   #d4381c;

  --f-display: 'Fraunces', 'Iowan Old Style', 'Palatino Linotype', Georgia, serif;
  --f-body:    'Geist', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --f-mono:    'Geist Mono', ui-monospace, 'Cascadia Mono', Consolas, monospace;

  --gutter: 16px;
  --max: 1180px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:   #14110d;
    --sheet:   #1c1812;
    --sheet-2: #221d16;
    --ink:     #f1e9d6;
    --ink-2:   #c9bfa7;
    --ink-3:   #9a907b;
    --rule:    #3a3327;
    --rule-2:  #2c261d;
    --accent:  #ff6a4a;
    --accent-ink: #1a0d08;
    --pos:     #6fcf93;
    --neg:     #ff8f82;
    --warn:    #e0b04a;
    --focus:   #ff6a4a;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background-color: var(--paper); color: var(--ink);
  font: 400 15px/1.55 var(--f-body);
  background-image: linear-gradient(var(--rule-2) 1px, transparent 1px);
  background-size: 100% 32px;
  background-attachment: fixed;
}
img, svg { max-width: 100%; }
a { color: var(--ink); text-decoration-color: var(--accent); text-decoration-thickness: 2px; text-underline-offset: 3px; }
a:hover { color: var(--accent); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--paper); padding: 8px 12px; z-index: 10; }
.skip:focus { left: 8px; }

/* ── Masthead ───────────────────────────────────────────────────────────── */
.masthead { background: var(--paper); border-bottom: 3px double var(--ink); }
.masthead__row {
  max-width: var(--max); margin: 0 auto; padding: 14px var(--gutter);
  display: flex; align-items: center; gap: 28px; flex-wrap: wrap;
}
.wordmark { font: 500 26px/1 var(--f-display); letter-spacing: -.02em; text-decoration: none; color: var(--ink); }
.wordmark b { color: var(--accent); font-weight: 700; font-style: italic; margin-left: 1px; }
.nav { display: flex; flex-wrap: wrap; gap: 4px 22px; flex: 1 1 100%; order: 3; padding-top: 6px; border-top: 1px solid var(--rule); }

.nav a {
  font: 500 12px/1 var(--f-mono); text-transform: uppercase; letter-spacing: .1em; text-decoration: none;
  padding: 8px 0; border-bottom: 2px solid transparent; white-space: nowrap; color: var(--ink-2);
}
.nav a:hover { color: var(--ink); border-bottom-color: var(--rule); }
.nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent); }
.who { display: flex; align-items: center; gap: 16px; margin-left: auto; font: 500 12px/1 var(--f-mono); }
.who__name { color: var(--ink-3); }
.who__link { text-transform: uppercase; letter-spacing: .08em; text-decoration: none; color: var(--ink-2); }
.who__link:hover { color: var(--accent); }

/* ── Page ───────────────────────────────────────────────────────────────── */
.page { max-width: var(--max); margin: 0 auto; padding: 36px var(--gutter) 64px; }
.kicker { font: 500 11px/1 var(--f-mono); text-transform: uppercase; letter-spacing: .14em; color: var(--ink-3); margin: 0 0 10px; }
h1, h2, h3 { font-family: var(--f-display); font-weight: 500; letter-spacing: -.015em; margin: 0; }
h1 { font-size: clamp(30px, 5vw, 46px); line-height: 1.05; font-variation-settings: 'opsz' 96; }
h2 { font-size: 22px; line-height: 1.2; margin-bottom: 14px; }
h3 { font-size: 17px; }
.lede { color: var(--ink-2); max-width: 62ch; margin: 12px 0 0; font-size: 16px; }
.pagehead { margin-bottom: 28px; }
.section { margin-top: 40px; }
.section > header { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; border-bottom: 1px solid var(--ink); padding-bottom: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.section > header h2 { margin: 0; }
.muted { color: var(--ink-3); }
.small { font-size: 13px; }

/* ── Layout helpers ─────────────────────────────────────────────────────── */
.grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 20px; }
.col-12 { grid-column: span 12; } .col-8 { grid-column: span 8; } .col-6 { grid-column: span 6; }
.col-7 { grid-column: span 7; } .col-5 { grid-column: span 5; } .col-4 { grid-column: span 4; } .col-3 { grid-column: span 3; } .col-2 { grid-column: span 2; }
@media (max-width: 860px) { .col-8, .col-7, .col-6, .col-5, .col-4, .col-3, .col-2 { grid-column: span 12; } }
.stack > * + * { margin-top: 16px; }
.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.row--end { justify-content: flex-end; }
.scroll-x { overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* ── Sheet (card) ───────────────────────────────────────────────────────── */
.sheet { background: var(--sheet); border: 1px solid var(--rule); border-top: 3px solid var(--ink); padding: 22px; }
.sheet--flush { padding: 0; }
.sheet--flush > .sheet__pad { padding: 22px; }

/* ── Money zones: deliberately different, so nobody confuses them ───────── */
.zone { position: relative; padding: 38px 22px 22px; background: var(--sheet); }
.zone__label {
  position: absolute; top: 0; left: 0; padding: 5px 10px; font: 600 10.5px/1 var(--f-mono);
  letter-spacing: .14em; text-transform: uppercase;
}
.zone--cash { border: 2px solid var(--ink); }
.zone--cash .zone__label { background: var(--ink); color: var(--paper); }
.zone--pnl { border: 1px solid var(--ink); }
.zone--pnl .zone__label { border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); color: var(--ink); }
.zone--illustrative {
  border: 1.5px dashed var(--ink-3);
  background-image: repeating-linear-gradient(135deg, transparent 0 9px, var(--rule) 9px 10px);
  background-color: var(--sheet-2);
}
.zone--illustrative .zone__label { background: var(--sheet-2); border-right: 1.5px dashed var(--ink-3); border-bottom: 1.5px dashed var(--ink-3); color: var(--ink-2); }
.figure { font: 500 clamp(34px, 5vw, 52px)/1 var(--f-display); font-variant-numeric: lining-nums tabular-nums; letter-spacing: .005em; font-variation-settings: 'opsz' 48; }
.figure small { font-size: .42em; font-family: var(--f-mono); letter-spacing: 0; margin-right: 6px; color: var(--ink-3); vertical-align: .55em; font-weight: 400; }
.figure.neg { color: var(--neg); }
.zone p { margin: 10px 0 0; color: var(--ink-2); font-size: 13.5px; }

/* ── KPI strip ──────────────────────────────────────────────────────────── */
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); border: 1px solid var(--ink); background: var(--sheet); }
.kpi { padding: 16px 18px; border-right: 1px solid var(--rule); border-bottom: 1px solid var(--rule); margin: 0 -1px -1px 0; }
.kpi dt { font: 500 10.5px/1.3 var(--f-mono); text-transform: uppercase; letter-spacing: .12em; color: var(--ink-3); }
.kpi dd { margin: 6px 0 0; font: 500 28px/1.1 var(--f-display); font-variant-numeric: lining-nums tabular-nums; }
.kpi dd small { display: block; margin-top: 4px; font: 400 12px/1.3 var(--f-body); color: var(--ink-3); }

/* ── Ruled tables ───────────────────────────────────────────────────────── */
table.ledger { width: 100%; border-collapse: collapse; font-size: 14px; }
.ledger caption { text-align: left; padding: 0 0 10px; color: var(--ink-3); font-size: 13px; }
.ledger th {
  font: 500 10.5px/1.2 var(--f-mono); text-transform: uppercase; letter-spacing: .12em; color: var(--ink-2);
  text-align: left; padding: 8px 12px; border-bottom: 2px solid var(--ink); white-space: nowrap;
}
.ledger td { padding: 10px 12px; border-bottom: 1px solid var(--rule); vertical-align: top; }
.ledger tbody tr:hover td { background: var(--sheet-2); }
.ledger .num { text-align: right; font: 400 13.5px/1.55 var(--f-mono); font-variant-numeric: tabular-nums; white-space: nowrap; }
.ledger th.num { text-align: right; font: 500 10.5px/1.2 var(--f-mono); }
.ledger td.nowrap { white-space: nowrap; }
@media (max-width: 640px) {
  /* Keep the money column on screen: drop secondary columns on phones. */
  .ledger .hide-sm { display: none; }
  .ledger td.nowrap { white-space: normal; }
  .ledger th, .ledger td { padding-left: 8px; padding-right: 8px; }
}
.ledger .neg { color: var(--neg); }
.ledger .pos { color: var(--pos); }
.ledger tfoot td { border-top: 3px double var(--ink); border-bottom: 0; font-weight: 600; }
.ledger .mono { font-family: var(--f-mono); font-size: 13px; }
.ledger .tight td { padding-top: 6px; padding-bottom: 6px; }

/* ── Stamps (status chips) ──────────────────────────────────────────────── */
.stamp {
  display: inline-block; padding: 2px 7px; border: 1.5px solid currentColor; border-radius: 2px;
  font: 600 10.5px/1.4 var(--f-mono); letter-spacing: .1em; text-transform: uppercase; white-space: nowrap;
}
.stamp--ok { color: var(--pos); } .stamp--bad { color: var(--neg); } .stamp--warn { color: var(--warn); }
.stamp--mute { color: var(--ink-3); } .stamp--ink { color: var(--ink); }

/* ── Buttons & forms ────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; cursor: pointer;
  font: 600 11.5px/1 var(--f-mono); letter-spacing: .1em; text-transform: uppercase; text-decoration: none;
  padding: 12px 18px; min-height: 40px; border: 1.5px solid var(--ink); border-radius: 2px;
  background: var(--ink); color: var(--paper); transition: transform .08s ease, background .15s ease;
}
.btn:hover { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn:active { transform: translateY(1px); }
.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.btn--accent { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn--accent:hover { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.btn--sm { padding: 8px 12px; min-height: 32px; font-size: 10.5px; }
.btn[disabled], .btn:disabled { opacity: .4; cursor: not-allowed; pointer-events: none; }

.field { display: block; margin: 0 0 16px; }
.field > span { display: block; font: 500 10.5px/1 var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-2); margin-bottom: 7px; }
.input, select.input, textarea.input {
  width: 100%; font: 400 15px/1.4 var(--f-body); color: var(--ink); background: var(--paper);
  border: 1.5px solid var(--ink); border-radius: 2px; padding: 10px 12px; min-height: 42px;
}
textarea.input { min-height: 84px; resize: vertical; }
.input::placeholder { color: var(--ink-3); }
.input:focus { outline: 2px solid var(--focus); outline-offset: 1px; }
.hint { font-size: 12.5px; color: var(--ink-3); margin-top: 6px; }
form.inline { display: inline; }
/* Controls sitting in a row (e.g. inside a table cell) share the line instead of each taking the full width. */
.row > .input, .row > select.input { width: auto; flex: 1 1 150px; min-width: 130px; }
.row > .btn { flex: 0 0 auto; }
.field--copy { display: flex; gap: 8px; align-items: stretch; }
.field--copy .input { flex: 1 1 auto; min-width: 0; }

/* ── Notes ──────────────────────────────────────────────────────────────── */
.note { border: 1px solid var(--rule); border-left: 5px solid var(--ink); background: var(--sheet); padding: 12px 16px; margin: 0 0 24px; }
.note--ok { border-left-color: var(--pos); } .note--error { border-left-color: var(--neg); } .note--warn { border-left-color: var(--warn); }
.callout { border: 1px solid var(--rule); background: var(--sheet-2); padding: 14px 16px; font-size: 13.5px; color: var(--ink-2); }

details > summary { cursor: pointer; font: 500 11px/1 var(--f-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); padding: 4px 0; }
pre.json { margin: 8px 0 0; padding: 12px; background: var(--paper); border: 1px solid var(--rule); overflow: auto; font: 400 12px/1.5 var(--f-mono); max-height: 320px; }
ul.plain { margin: 6px 0 0; padding-left: 18px; color: var(--ink-2); font-size: 13.5px; }

/* ── Auth screen ────────────────────────────────────────────────────────── */
.area-auth .masthead { border-bottom: 0; }
.auth { display: grid; grid-template-columns: 1.2fr 1fr; min-height: calc(100vh - 140px); align-items: center; gap: 56px; }
.auth__pitch h1 { font-size: clamp(36px, 6vw, 68px); line-height: 1; }
.auth__pitch h1 em { color: var(--accent); font-style: italic; }
.auth__pitch .lede { font-size: 17px; }
@media (max-width: 860px) { .auth { grid-template-columns: 1fr; gap: 28px; min-height: 0; padding-top: 12px; } }

/* ── Footer ─────────────────────────────────────────────────────────────── */
.foot { max-width: var(--max); margin: 0 auto; padding: 22px var(--gutter) 40px; border-top: 1px solid var(--ink); font: 400 11.5px/1.6 var(--f-mono); color: var(--ink-3); }
.foot p { margin: 0; }

@media (max-width: 640px) {
  .masthead__row { gap: 12px 20px; }
  .who { margin-left: 0; width: 100%; justify-content: space-between; }
  .page { padding-top: 24px; }
  .sheet, .zone { padding-left: 16px; padding-right: 16px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }
@media print {
  body { background: #fff; color: #000; }
  .masthead, .foot, .btn, .no-print { display: none !important; }
  .sheet, .zone { border-color: #000; }
}