/* PK2 AI Advisors · tools
   The tools index and the tool page pattern: the input form, the output
   drafts, the copy buttons, the timing line.

   Loads after site.css and week-grid.css. It adds no colour and no system
   size of its own: every value resolves through a custom property from
   tokens.css, and the card frame comes from .grid-card in week-grid.css.
   The three output drafts are grid-cards too, so a draft is ruled the same
   way a tool card is.

   Flat by rule: no gradients, no shadows, no radius except the button pill.
*/

/* ------------------------------------------------------------- the index -- */

/* One tool today. The card takes half the row on a wide screen and the other
   half stays empty paper, which reads as restraint. A second tool fills it
   without a rule change here. */
.tool-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.tool-more {
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: var(--hair) solid var(--hairline);
}

/* ---------------------------------------------------------- the tool page -- */

/* The tool runs in a column narrower than the full container. A form that
   spans 1200px reads as a database, not as a thing you fill in. */
.tool-column {
  max-width: calc(var(--measure) + var(--space-7) * 2);
}

.tool-form {
  margin-top: var(--space-6);
}

.tool-fields {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}
.tool-field-wide { grid-column: 1 / -1; }

.tool-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.tool-label {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: var(--size-label);
  line-height: 1.3;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
}

/* The optional field says so on the label, not in a footnote. */
.tool-optional {
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: none;
  color: var(--gold-text);
}

/* Inputs are ruled, not boxed: a hairline all round, no fill, no radius, in
   the same weight as the week grid. */
.tool-input {
  width: 100%;
  min-height: var(--btn-height);
  padding: var(--space-2) var(--space-3);
  border: var(--hair) solid var(--hairline);
  border-radius: var(--radius-card);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--size-body);
  line-height: 1.5;
  transition: border-color var(--dur-ui) ease;
}
.tool-input:hover { border-color: var(--text-muted); }
.tool-input:focus { border-color: var(--ink); }
.tool-input::placeholder { color: var(--text-muted); }

.tool-textarea {
  min-height: calc(var(--btn-height) * 2);
  resize: vertical;
}

.tool-hint { margin-top: var(--space-1); }

.tool-run {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--space-5);
}

/* While the request is out the button says so and stops taking presses. */
.btn-primary[disabled] {
  opacity: 0.55;
  cursor: default;
}
.btn-primary[disabled]:hover { background: var(--gold); }
.btn-primary[disabled]:hover .btn-arrow { transform: none; }
.btn-primary[disabled]:active { transform: none; }

/* The status line. Empty and invisible until it has something to say, so the
   layout does not carry a reserved gap for a message that rarely appears. */
.tool-status {
  margin-top: var(--space-3);
  font-size: var(--size-small);
  line-height: 1.55;
  color: var(--ink);
}
.tool-status:empty { display: none; }

/* --------------------------------------------------------------- output -- */

.tool-output {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.tool-email { gap: var(--space-3); }

.tool-email-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: var(--hair) solid var(--hairline);
}

.tool-email-subject {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--size-h4);
  line-height: 1.4;
  color: var(--ink);
}

/* The draft itself. Line breaks come from the model as text, so they are
   honoured here rather than rebuilt as markup. */
.tool-email-body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--size-body);
  line-height: 1.65;
  color: var(--text);
  white-space: pre-wrap;
  overflow-wrap: break-word;
}

/* The copy button. Mono pill, hairline, one size down from a secondary
   button, because it sits inside a card rather than under one. */
.btn-copy {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  border: var(--hair) solid var(--hairline);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--ink);
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: var(--size-label);
  line-height: 1;
  letter-spacing: 0.08em;
  white-space: nowrap;
  cursor: pointer;
  transition: border-color var(--dur-ui) ease, color var(--dur-ui) ease;
}
.btn-copy:hover { border-color: var(--ink); }
.btn-copy.is-copied {
  border-color: var(--gold);
  color: var(--gold-text);
}

/* The measured number, printed as it was measured. Mono, quiet, and it only
   exists once a run has actually happened. */
.tool-timing {
  margin-top: var(--space-4);
  color: var(--text-muted);
}

/* ----------------------------------------------------------------- turn -- */

.tool-cta { margin-top: var(--space-5); }
.tool-cta-note { margin-top: var(--space-3); }

/* --------------------------------------------------------------- narrow -- */

@media (max-width: 640px) {
  .tool-list { grid-template-columns: 1fr; }
  .tool-fields { grid-template-columns: 1fr; gap: var(--space-3); }
  .tool-field-wide { grid-column: 1; }
  .tool-run > .btn-primary { width: 100%; justify-content: space-between; }
  .tool-email-head { align-items: flex-start; }
}