/* ============================================================
   Lavaca Capital — Option Pricer
   Re-skinned to match the firm site / SPX Box Rates page:
   khaki / night / copper palette, freight serif display
   (Adobe Typekit zkt5ymy), thin copper accent rules.
   Class names preserved from the original so all templates
   and HTMX partials keep working — only the look changed.
   ============================================================ */

:root {
  /* KHAKI (warm cream → tan) */
  --khaki-lightest: #f8f4ec;
  --khaki-lighter:  #f1ead9;
  --khaki-light:    #e8dfc7;
  --khaki:          #d9ccaa;
  --khaki-dark:     #c7b68e;
  --khaki-darker:   #96866a;

  /* NIGHT (deep navy / charcoal) */
  --night-lighter:  #2d3a52;
  --night-light:    #1d2940;
  --night:          #151e32;
  --night-dark:     #0d1321;
  --night-darker:   #060b17;

  /* COPPER (accent) */
  --copper-light:   #d4a169;
  --copper:         #b07a3a;
  --copper-dark:    #8a5a24;

  /* Legacy token names referenced throughout the templates/partials,
     re-pointed at the brand palette so everything inherits the new look. */
  --navy-900: var(--night-dark);
  --navy-800: var(--night);
  --navy-700: var(--night-light);
  --navy-100: var(--khaki-light);
  --white:    #ffffff;
  --gray-50:  var(--khaki-lighter);
  --gray-100: var(--khaki-light);
  --gray-200: var(--khaki);
  --gray-300: var(--khaki-dark);
  --gray-400: var(--khaki-darker);
  --gray-500: var(--khaki-darker);
  --gray-600: var(--night-lighter);
  --gray-700: var(--night-light);
  --gray-800: var(--night);

  --clay:       var(--copper);
  --clay-light: var(--copper-light);
  --clay-dark:  var(--copper-dark);

  --green:    #4a7a55;
  --green-bg: #e8f0ea;
  --red:      #a6532c;
  --red-bg:   #f7ece4;
  --amber:    #b07a3a;
  --amber-bg: #f6ecd9;

  --radius: 4px;
  --radius-lg: 6px;
  --shadow-sm: 0 1px 2px rgba(13, 19, 33, .06);
  --shadow: 0 6px 22px rgba(13, 19, 33, .10), 0 2px 6px rgba(13, 19, 33, .05);

  --font-serif:
    "freight-display-pro", "freight-text-pro", "Source Serif 4",
    Georgia, "Times New Roman", serif;
  --font-sans:
    "freight-sans-pro", "Inter", system-ui, -apple-system, "Segoe UI",
    Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.6;
  color: var(--night);
  background: var(--khaki-lighter);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection { background: var(--copper); color: var(--khaki-lightest); }

/* ---------- Layout ---------- */

.shell {
  max-width: 1480px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Top bar (light khaki header + SVG wordmark) ---------- */

.topbar {
  background: linear-gradient(to bottom, var(--khaki-dark), var(--khaki));
  border-bottom: 1px solid var(--copper);
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  max-width: 1480px;
  margin: 0 auto;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  text-decoration: none;
  color: var(--night-dark);
}
.brand .brand-mark { height: 18px; width: auto; }
.brand .brand-text { fill: var(--night-lighter); transition: fill .25s ease; }
.brand .brand-c path { fill: var(--copper-dark); transition: fill .25s ease; }
.brand:hover .brand-text,
.brand:hover .brand-c path { fill: var(--copper-light); }
.brand-product {
  font-weight: 600;
  font-size: 12px;
  color: var(--copper-dark);
  letter-spacing: .14em;
  text-transform: uppercase;
  padding-left: 16px;
  border-left: 1px solid var(--khaki-darker);
}
.brand-tag {
  font-size: 11px;
  color: var(--night-lighter);
  font-style: italic;
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav a {
  color: var(--night-dark);
  text-decoration: none;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .01em;
  border-radius: var(--radius);
  transition: color 0.15s, background 0.15s;
}
.nav a:hover { color: var(--copper); }
.nav a.active { color: var(--copper-dark); }
.nav a.active::after {
  content: "";
  display: block;
  height: 2px;
  background: var(--copper);
  margin-top: 4px;
}

/* ---------- Surface status bar ---------- */

.status-bar {
  background: var(--khaki-lightest);
  border-bottom: 1px solid var(--khaki);
}
.status-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 24px;
  max-width: 1480px;
  margin: 0 auto;
  gap: 24px;
  font-size: 13px;
}
.status-loaded { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.status-empty { color: var(--khaki-darker); }
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.status-pill .label {
  color: var(--copper);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
}
.status-pill .value {
  color: var(--night-dark);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.status-pill .value.muted { color: var(--khaki-darker); font-weight: 500; }

.btn-link-sm {
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--copper-dark);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
}
.btn-link-sm:hover { color: var(--copper-light); }

/* ---------- Main ---------- */

main {
  padding: 28px 0 60px;
}

h1, h2 {
  font-family: var(--font-serif);
  color: var(--night-dark);
  font-weight: 500;
  letter-spacing: -0.005em;
  line-height: 1.12;
}
h1 {
  margin: 0 0 4px;
  font-size: 28px;
  font-weight: 400;
}
h2 {
  margin: 0 0 6px;
  font-size: 20px;
}
h3 {
  margin: 0 0 4px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 700;
  color: var(--copper);
  text-transform: uppercase;
  letter-spacing: 0.16em;
}
.subtitle {
  color: var(--night-lighter);
  font-size: 13px;
  margin: 0 0 20px;
}

a { color: var(--copper-dark); text-decoration: none; transition: color .15s ease; }
a:hover { color: var(--copper-light); }
strong { font-weight: 600; color: var(--night-dark); }

/* ---------- Cards / panels ---------- */

.card {
  position: relative;
  background: var(--khaki-lightest);
  border: 1px solid var(--khaki);
  border-radius: var(--radius);
  padding: 24px 22px 20px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 16px;
}
.card::before {
  content: "";
  position: absolute;
  top: -1px; left: -1px;
  width: 36px; height: 3px;
  background: var(--copper);
}
.card-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--khaki);
}
.card-header h2 { margin: 0; }
.card-header .meta { color: var(--khaki-darker); font-size: 12px; }

/* ---------- Forms ---------- */

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
}
.form-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.form-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.form-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.form-grid.cols-5 { grid-template-columns: repeat(5, 1fr); }

.field {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.field label {
  font-size: 11px;
  color: var(--copper-dark);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.field input[type="text"],
.field input[type="number"],
.field input[type="date"],
.field input[type="password"],
.field input[type="email"],
.field select,
.field textarea {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--night-dark);
  background: var(--khaki-lightest);
  border: 1px solid var(--khaki-darker);
  border-radius: var(--radius);
  padding: 8px 10px;
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--copper);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(176, 122, 58, 0.18);
}
.field .help {
  font-size: 11px;
  color: var(--khaki-darker);
  margin-top: 2px;
}

.radio-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.radio-row label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--night);
  cursor: pointer;
}
.radio-row input[type="radio"] {
  accent-color: var(--copper);
}

.btn {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  padding: 11px 22px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.18s, color 0.18s, border-color 0.18s;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.btn-primary {
  background: var(--copper);
  color: var(--khaki-lightest);
  border-color: var(--copper);
}
.btn-primary:hover { background: var(--copper-dark); border-color: var(--copper-dark); }
.btn-secondary {
  background: transparent;
  color: var(--copper-dark);
  border-color: var(--copper);
}
.btn-secondary:hover { background: var(--copper); color: var(--khaki-lightest); }
.btn-ghost {
  background: transparent;
  color: var(--night-lighter);
  border-color: var(--khaki-dark);
}
.btn-ghost:hover { background: var(--khaki-light); color: var(--copper-dark); }
.btn-row {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: 16px;
}

/* ---------- Metrics ---------- */

.metric-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1px;
  background: var(--khaki);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--khaki);
}
.metric {
  background: var(--khaki-lightest);
  padding: 14px 16px;
}
.metric .label {
  font-size: 11px;
  color: var(--copper);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 5px;
}
.metric .value {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 500;
  color: var(--night-dark);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}
.metric .delta {
  font-size: 11px;
  margin-top: 4px;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}
.metric .delta.up { color: var(--green); }
.metric .delta.down { color: var(--red); }
.metric .delta.neutral { color: var(--khaki-darker); }

/* ---------- Tables ---------- */

.table-wrap {
  border: 1px solid var(--khaki);
  border-radius: var(--radius);
  overflow: auto;
  max-height: 640px;
  background: var(--khaki-lightest);
}
table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
}
table.data thead {
  position: sticky;
  top: 0;
  background: var(--night-dark);
  color: var(--khaki-lightest);
  z-index: 1;
}
table.data thead th {
  text-align: right;
  padding: 9px 10px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-bottom: 2px solid var(--copper);
}
table.data thead th:first-child,
table.data thead th.l { text-align: left; }
table.data tbody td {
  padding: 6px 10px;
  border-bottom: 1px solid var(--khaki-light);
  text-align: right;
  color: var(--night-dark);
}
table.data tbody td.l { text-align: left; }
table.data tbody td.muted { color: var(--khaki-darker); }
table.data tbody tr:hover td { background: var(--khaki-light); }
table.data tbody tr.row-call td { background: rgba(74, 122, 85, 0.05); }
table.data tbody tr.row-put td { background: rgba(166, 83, 44, 0.05); }
table.data tbody tr.row-call:hover td,
table.data tbody tr.row-put:hover td { background: var(--khaki-light); }

.cell-edge-pos { background: rgba(166, 83, 44, calc(var(--int, 0)));  color: var(--night-dark); }
.cell-edge-neg { background: rgba(74, 122, 85, calc(var(--int, 0)));  color: var(--night-dark); }

/* ---------- Banners ---------- */

.banner {
  padding: 12px 14px;
  border-radius: var(--radius);
  font-size: 13px;
  line-height: 1.5;
  margin-bottom: 16px;
  border: 1px solid transparent;
}
.banner-ok    { background: var(--green-bg); border-color: rgba(74,122,85,0.35); color: #2f5238; }
.banner-warn  { background: var(--amber-bg); border-color: rgba(176,122,58,0.4); color: #6b4a0f; }
.banner-error { background: var(--red-bg);   border-color: rgba(166,83,44,0.35); color: #6b2a14; }
.banner-info  { background: var(--khaki-light); border-color: var(--khaki-dark); color: var(--night); }
.banner strong { font-weight: 600; }
.banner ul { margin: 6px 0 0 0; padding-left: 18px; }
.banner li { margin: 2px 0; }

/* ---------- Detail / chip ---------- */

details.disclosure {
  margin-top: 12px;
  border: 1px solid var(--khaki);
  border-radius: var(--radius);
  background: var(--khaki-lightest);
}
details.disclosure summary {
  cursor: pointer;
  padding: 11px 14px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--copper-dark);
  list-style: none;
}
details.disclosure summary::-webkit-details-marker { display: none; }
details.disclosure summary::before {
  content: "▸";
  display: inline-block;
  margin-right: 8px;
  transition: transform 0.15s;
  color: var(--copper);
}
details.disclosure[open] summary::before { transform: rotate(90deg); }
details.disclosure .disclosure-body {
  padding: 4px 14px 14px;
  font-size: 13px;
  color: var(--night-lighter);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  font-size: 11px;
  font-weight: 600;
  border-radius: 12px;
  background: var(--khaki-light);
  color: var(--night-light);
}
.chip-clay { background: rgba(176, 122, 58, 0.14); color: var(--copper-dark); }
.chip-navy { background: var(--khaki-light); color: var(--night-light); }

/* ---------- Charts ---------- */

.chart-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
  gap: 16px;
}
.chart-card {
  position: relative;
  background: var(--khaki-lightest);
  border: 1px solid var(--khaki);
  border-radius: var(--radius);
  padding: 18px 16px;
}
.chart-card h3 { margin: 0 0 12px; }

/* ---------- Footer (night, with disclosure — mirrors the box site) ---------- */

footer {
  background: var(--night);
  color: var(--khaki-darker);
  margin-top: 60px;
  padding: 28px 24px;
  font-size: 11px;
}
footer .shell {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
footer a { color: var(--khaki-darker); }
footer a:hover { color: var(--copper-light); }

/* ---------- Misc ---------- */

.mono { font-family: var(--font-mono); }
.tabular { font-variant-numeric: tabular-nums; }
.pos { color: var(--green); }
.neg { color: var(--red); }
.muted { color: var(--khaki-darker); }

.htmx-indicator {
  opacity: 0;
  transition: opacity 0.2s;
}
.htmx-request .htmx-indicator { opacity: 1; }

@media (max-width: 720px) {
  .form-grid.cols-2,
  .form-grid.cols-3,
  .form-grid.cols-4,
  .form-grid.cols-5 { grid-template-columns: 1fr; }
  .status-bar-inner { flex-direction: column; align-items: flex-start; }
  .topbar-inner { flex-direction: column; align-items: flex-start; gap: 12px; }
}