/* ============================================
   luppiter GROUP: Tools page (tools.html only)
   Builds on style.css tokens
   ============================================ */

:root {
  --pos: #5a9e6f;
  --neg: #d46a5c;
  --s1: #c98500;  /* Daily 30/70 */
  --s2: #3987e5;  /* Daily 20/80 */
  --s3: #d95926;  /* Weekly 30/70 */
  --s4: #199e70;  /* Weekly 20/80 */
}

.tools-header .ornament { margin-bottom: 18px; }
.tools-intro {
  max-width: 640px;
  margin: 0 auto 22px;
  color: var(--text-dim);
  font-size: 1rem;
  line-height: 1.7;
}
.tools-header .btn { margin-top: 4px; }

/* Jump links */
.tool-jump {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: 10px; margin-top: 28px;
}
.tool-jump a {
  font-size: 0.78rem; letter-spacing: 1px; text-transform: uppercase;
  color: var(--text-dim); border: 1px solid var(--border);
  padding: 6px 14px; border-radius: 20px;
}
.tool-jump a:hover { color: var(--gold); border-color: var(--border-gold); }

/* Tool cards */
.tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 36px 32px;
  margin-bottom: 32px;
  scroll-margin-top: 80px;
  min-width: 0;
}
.tool-card:hover { border-color: var(--border-gold); }
.tool-kicker {
  font-size: 0.72rem; letter-spacing: 2px; text-transform: uppercase;
  color: var(--gold-dim); margin-bottom: 8px;
}
.tool-title {
  font-family: var(--font-heading);
  font-size: 1.7rem; color: var(--cream);
  line-height: 1.2; margin-bottom: 8px;
}
.tool-lede {
  color: var(--text-dim); font-size: 0.95rem; line-height: 1.65;
  margin-bottom: 24px; max-width: 760px;
}
.tool-sub {
  font-family: var(--font-heading);
  font-size: 1.2rem; color: var(--cream);
  margin: 32px 0 6px;
}
.tool-sub:first-child { margin-top: 0; }
.tool-subnote { color: var(--text-dim); font-size: 0.86rem; margin-bottom: 16px; }

.tool-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

/* Form fields */
.fields {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 16px 18px;
}
.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field.span-2 { grid-column: 1 / -1; }
.field label {
  font-size: 0.74rem; letter-spacing: 1px; text-transform: uppercase;
  color: var(--cream-dim);
}
.field .opt { color: var(--text-dim); text-transform: none; letter-spacing: 0; }
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  border-radius: 2px;
  font-variant-numeric: tabular-nums;
  transition: border-color .2s;
}
.field select { cursor: pointer; }
.field textarea {
  min-height: 120px; resize: vertical;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.8rem; line-height: 1.5;
}
.field input:focus,
.field select:focus,
.field textarea:focus { outline: none; border-color: var(--gold); }
.field input[aria-invalid="true"],
.field select[aria-invalid="true"] { border-color: var(--neg); }
.field .hint { font-size: 0.75rem; color: var(--text-dim); line-height: 1.45; }
.field input[type="file"] { padding: 8px; font-size: 0.82rem; }
.field input[type="file"]::file-selector-button {
  background: none; border: 1px solid var(--gold); color: var(--gold);
  padding: 6px 12px; margin-right: 10px; cursor: pointer;
  font-family: var(--font-body); font-size: 0.72rem; letter-spacing: 1px; text-transform: uppercase;
}

.form-errors {
  margin-top: 14px; font-size: 0.84rem; color: var(--neg);
  line-height: 1.5;
}
.form-errors:empty { display: none; }
.form-errors ul { list-style: none; }
.form-warn { margin-top: 10px; font-size: 0.82rem; color: var(--gold-light); }
.form-warn:empty { display: none; }

/* Results */
.results {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 22px 22px 18px;
  min-width: 0;
}
.result-hero { margin-bottom: 16px; padding-bottom: 16px; border-bottom: 1px solid var(--border); }
.result-hero .rh-label {
  font-size: 0.72rem; letter-spacing: 1.5px; text-transform: uppercase; color: var(--text-dim);
}
.result-hero .rh-value {
  font-family: 'Cinzel', serif; font-size: 2.1rem; color: var(--gold);
  line-height: 1.2; font-variant-numeric: tabular-nums;
}
.result-hero .rh-sub { font-size: 0.82rem; color: var(--text-dim); }
.result-list { list-style: none; }
.result-list li {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: 16px; padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  font-size: 0.9rem;
}
.result-list li:last-child { border-bottom: none; }
.result-list .rl-label { color: var(--text-dim); min-width: 0; }
.result-list .rl-label small { display: block; font-size: 0.74rem; color: var(--text-dim); opacity: .8; }
.result-list .rl-value {
  color: var(--cream); font-weight: 600; text-align: right;
  font-variant-numeric: tabular-nums; white-space: nowrap;
}
.rl-value.pos { color: var(--pos); }
.rl-value.neg { color: var(--neg); }

.formula {
  margin-top: 18px;
  background: rgba(201,168,76,0.04);
  border: 1px solid var(--border);
  border-left: 2px solid var(--gold-dim);
  padding: 14px 16px;
  font-size: 0.8rem; color: var(--text-dim); line-height: 1.7;
}
.formula h4 {
  font-size: 0.7rem; letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--gold-dim); margin-bottom: 6px; font-weight: 600;
}
.formula code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.78rem; color: var(--cream-dim);
  white-space: normal; overflow-wrap: anywhere;
}
.formula p + p { margin-top: 6px; }

.caveat {
  margin-top: 16px; font-size: 0.8rem; color: var(--text-dim); line-height: 1.6;
}
.caveat strong { color: var(--cream-dim); }

.callout {
  border: 1px solid rgba(212,106,92,0.45);
  background: rgba(212,106,92,0.07);
  border-radius: 4px;
  padding: 14px 16px;
  font-size: 0.86rem; color: var(--text); line-height: 1.6;
  margin: 18px 0 24px;
}
.callout strong { color: #e8a093; }

/* Chart text */
.ch-label { fill: var(--cream-dim); font-size: 12.5px; font-family: var(--font-body); }
.ch-group { fill: var(--gold); font-size: 11.5px; font-family: var(--font-body); letter-spacing: 1px; text-transform: uppercase; font-weight: 600; }
.ch-value { fill: var(--text); font-size: 12px; font-family: var(--font-body); font-weight: 600; font-variant-numeric: tabular-nums; }
.ch-axis { stroke: #3a3a48; stroke-width: 1; }
.chart .bar:hover path { opacity: .85; }

/* Strategy toggles */
fieldset.chip-row { border: none; padding: 0; margin: 0 0 16px; min-width: 0; }
.chip-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 16px; }
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--border); border-radius: 20px;
  padding: 6px 14px; cursor: pointer; font-size: 0.82rem; color: var(--text-dim);
  user-select: none;
}
.chip input { accent-color: var(--gold); width: 15px; height: 15px; margin: 0; }
.chip .sw { width: 10px; height: 10px; border-radius: 2px; flex-shrink: 0; }
.chip:has(input:checked) { color: var(--cream); border-color: var(--border-gold); }
.chip:focus-within { outline: 1px solid var(--gold); outline-offset: 2px; }

.ctrl-row {
  display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-end; margin-bottom: 14px;
}
.ctrl-row .field { flex: 1 1 200px; max-width: 320px; }

.chart { width: 100%; min-height: 40px; margin: 6px 0 4px; }
.chart svg { display: block; overflow: visible; }
.chart .empty { color: var(--text-dim); font-size: 0.86rem; padding: 12px 0; }

/* Tables */
.table-wrap {
  width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch;
  border: 1px solid var(--border); border-radius: 4px;
  margin: 12px 0 8px;
}
.table-wrap:focus { outline: 1px solid var(--gold); }
.data {
  width: 100%; border-collapse: collapse;
  font-size: 0.84rem; font-variant-numeric: tabular-nums;
}
.data caption {
  caption-side: top; text-align: left; padding: 10px 12px 4px;
  font-size: 0.74rem; letter-spacing: 1px; text-transform: uppercase; color: var(--gold-dim);
}
.data th, .data td {
  padding: 8px 12px; text-align: right; white-space: nowrap;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.data th:first-child, .data td:first-child { text-align: left; }
.data thead th {
  color: var(--cream-dim); font-weight: 600; font-size: 0.74rem;
  letter-spacing: .5px; text-transform: uppercase; background: rgba(255,255,255,0.02);
}
.data tbody th { color: var(--text-dim); font-weight: 500; }
.data tbody tr:last-child td, .data tbody tr:last-child th { border-bottom: none; }
.data tbody th[scope="row"], .data thead th:first-child {
  position: sticky; left: 0; z-index: 1; background: var(--bg-card);
}
.data thead th:first-child { background: #1a1a23; }
.data td.pos { color: var(--pos); }
.data td.neg { color: var(--neg); }
.data .sw { display: inline-block; width: 9px; height: 9px; border-radius: 2px; margin-right: 6px; vertical-align: middle; }

/* Backtest stats */
.stat-grid {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px; margin: 18px 0 8px;
}
.stat-tile {
  background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 4px;
  padding: 12px 14px; min-width: 0;
}
.stat-tile .st-label {
  font-size: 0.68rem; letter-spacing: 1px; text-transform: uppercase; color: var(--text-dim);
}
.stat-tile .st-value {
  font-size: 1.15rem; font-weight: 600; color: var(--cream);
  font-variant-numeric: tabular-nums; overflow-wrap: anywhere;
}
.stat-tile .st-value.pos { color: var(--pos); }
.stat-tile .st-value.neg { color: var(--neg); }

.data-status { font-size: 0.82rem; color: var(--text-dim); margin-top: 10px; }
.data-status strong { color: var(--gold-light); font-weight: 600; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 16px; align-items: center; }
.btn-ghost { border-color: var(--border); color: var(--text-dim); }
.btn-ghost:hover { background: none; border-color: var(--gold); color: var(--gold); }

/* DCF card */
.dcf-body {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 32px;
}
.dcf-desc { color: var(--text-dim); font-size: 0.92rem; line-height: 1.75; }
.dcf-desc + .dcf-desc { margin-top: 12px; }
.free-badge {
  display: inline-block; font-size: 0.72rem; letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--pos); border: 1px solid rgba(90,158,111,0.4); border-radius: 20px;
  padding: 3px 12px; margin-left: 10px; vertical-align: middle;
  font-family: var(--font-body); font-weight: 600;
}
.feat-list { list-style: none; }
.feat-list li {
  font-size: 0.87rem; color: var(--text-dim); padding: 6px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  display: flex; gap: 10px; line-height: 1.5;
}
.feat-list li::before { content: "\2726"; color: var(--gold-dim); font-size: 0.65rem; margin-top: 4px; flex-shrink: 0; }
.dcf-actions {
  display: flex; flex-wrap: wrap; gap: 14px; align-items: center;
  margin-top: 24px; padding-top: 22px; border-top: 1px solid var(--border);
}

.footer-disclaimer { margin-top: 8px; font-size: 0.78rem; color: var(--text-dim); }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ---- Responsive ---- */
@media (max-width: 860px) {
  .tool-grid, .dcf-body { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .tool-card { padding: 24px 16px; }
  .tool-title { font-size: 1.4rem; }
  .fields { grid-template-columns: minmax(0, 1fr); }
  .results { padding: 18px 14px 14px; }
  .result-hero .rh-value { font-size: 1.7rem; }
  .ctrl-row .field { max-width: none; }
  .page-header h1 { font-size: 2rem; }
  .data:not(#bt-trades) tbody th[scope="row"] { white-space: normal; min-width: 128px; max-width: 150px; }
  .data th, .data td { padding: 8px 10px; }
}