/*
 * Styles for the contribution flow at /contribute/.
 *
 * Loaded only on that page. Uses the design tokens from style.css
 * (--color-primary and friends) so it stays in step with the rest of the site.
 */

.contribute {
  padding: 2rem 0 4rem;
}

.contrib-noscript {
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-warning);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  background: var(--color-bg-alt);
}

.contrib-noscript h2 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

.contrib-noscript p {
  margin: 0;
  color: var(--color-text-light);
}

/* --------------------------------------------------------------------------
   Stepper
   -------------------------------------------------------------------------- */

.contrib-stepper {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.contrib-step {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  font-family: var(--font-body);
  text-align: left;
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.contrib-step:hover {
  border-color: var(--color-primary);
}

.contrib-step:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.contrib-step.is-active {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.12);
}

.contrib-step-num {
  flex: none;
  display: grid;
  place-items: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background: var(--color-bg-alt);
  color: var(--color-text-light);
  font-size: 0.875rem;
  font-weight: 600;
}

.contrib-step.is-active .contrib-step-num {
  background: var(--color-primary);
  color: #fff;
}

.contrib-step-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.contrib-step-label {
  font-weight: 600;
  color: var(--color-text);
  font-size: 0.9375rem;
}

.contrib-step-hint {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* --------------------------------------------------------------------------
   Panels
   -------------------------------------------------------------------------- */

.contrib-panel > h2 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.75rem;
}

.contrib-panel > h2:focus {
  outline: none;
}

.contrib-lede {
  margin: 0 0 2rem;
  max-width: 62ch;
  color: var(--color-text-light);
  font-size: 1.0625rem;
  line-height: 1.6;
}

.contrib-nav {
  display: flex;
  gap: 0.75rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

/* --------------------------------------------------------------------------
   Option cards (step 1)
   -------------------------------------------------------------------------- */

.contrib-options {
  display: grid;
  gap: 1.25rem;
}

.contrib-option {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  background: var(--color-bg);
}

.contrib-option--primary {
  border-color: var(--color-primary);
  background: linear-gradient(180deg, var(--color-primary-light) 0%, var(--color-bg) 120px);
}

.contrib-option--quiet {
  background: var(--color-bg-alt);
}

.contrib-option-head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}

.contrib-option-head h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.1875rem;
}

.contrib-option > p {
  margin: 0 0 1rem;
  color: var(--color-text-light);
  max-width: 60ch;
}

.contrib-howto {
  margin: 0 0 1.25rem;
  padding-left: 1.25rem;
  max-width: 62ch;
  color: var(--color-text);
  line-height: 1.7;
}

.contrib-howto li + li {
  margin-top: 0.375rem;
}

.contrib-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.contrib-chip {
  padding: 0.4375rem 0.875rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.contrib-chip:hover {
  border-color: var(--color-primary);
  color: var(--color-primary-dark);
}

.contrib-hint {
  margin: 1rem 0 0;
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

.contrib-link-btn {
  padding: 0;
  border: 0;
  background: none;
  color: var(--color-primary-dark);
  font: inherit;
  font-size: 0.875rem;
  text-decoration: underline;
  cursor: pointer;
}

.contrib-link-btn:hover {
  color: var(--color-primary);
}

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

.contrib-field {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  min-width: 0;
}

.contrib-field label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
}

.contrib-field input[type="text"],
.contrib-field input[type="number"],
.contrib-field textarea {
  width: 100%;
  padding: 0.5625rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.9375rem;
}

.contrib-field textarea {
  resize: vertical;
  line-height: 1.6;
}

.contrib-field input:focus,
.contrib-field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.1);
}

.contrib-field-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.contrib-unit {
  font-size: 0.875rem;
  color: var(--color-text-light);
}

.contrib-field-hint {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--color-text-light);
  line-height: 1.5;
}

.contrib-field-hint.is-over {
  color: var(--color-error);
}

/* --------------------------------------------------------------------------
   Editor + report (step 2)
   -------------------------------------------------------------------------- */

.contrib-check {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 1.5rem;
  align-items: start;
}

.contrib-editor-col,
.contrib-report-col {
  min-width: 0;
}

.contrib-editor-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.contrib-editor-head label {
  font-size: 0.875rem;
  font-weight: 600;
}

.contrib-editor-tools {
  display: flex;
  align-items: baseline;
  gap: 0.875rem;
}

.contrib-saved {
  font-size: 0.8125rem;
  color: var(--color-secondary);
}

/* --------------------------------------------------------------------------
   The editor

   Three layers share one set of font metrics so they line up to the pixel:
   the gutter, a syntax-highlighted backdrop, and a transparent textarea on
   top. The textarea is the only scroller; the other two are told where it got
   to. Line height is a whole number of pixels on purpose — a fractional one
   accumulates rounding error and the numbers drift off their lines a few
   hundred rows down.
   -------------------------------------------------------------------------- */

.ckl-editor {
  --ckl-line: 20px;
  --ckl-pad-y: 14px;
  --ckl-pad-x: 14px;

  display: flex;
  height: 30rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  overflow: hidden;
  resize: vertical;
}

.ckl-editor:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.1);
}

.ckl-editor.is-dropping {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.ckl-editor-gutter,
.ckl-editor-highlight,
.ckl-editor textarea {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 13px;
  line-height: var(--ckl-line);
  tab-size: 2;
  padding-top: var(--ckl-pad-y);
  padding-bottom: var(--ckl-pad-y);
}

/* Plain block, not a flex container: its children simply overflow and
   `scrollTop` moves them, with no flex sizing in the way. */
.ckl-editor-gutter {
  flex: 0 0 auto;
  display: block;
  padding-left: 12px;
  padding-right: 10px;
  border-right: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  color: var(--color-text-light);
  text-align: right;
  overflow: hidden;
  user-select: none;
}

.ckl-editor-gutter-line {
  display: block;
  height: var(--ckl-line);
  white-space: pre;
  font-variant-numeric: tabular-nums;
}

.ckl-editor-gutter-line.is-current {
  color: var(--color-text);
  background: var(--color-primary-light);
}

.ckl-editor-gutter-line.is-error {
  color: var(--color-error);
  font-weight: 700;
}

.ckl-editor-gutter-line.is-warning {
  color: #92400e;
  font-weight: 700;
}

.ckl-editor-main {
  position: relative;
  flex: 1 1 auto;
  min-width: 0;
}

/* Identical geometry to the textarea, so syncing scroll offsets keeps the two
   in register without any arithmetic. */
.ckl-editor-highlight,
.ckl-editor textarea {
  position: absolute;
  inset: 0;
  margin: 0;
  border: 0;
  padding-left: var(--ckl-pad-x);
  padding-right: var(--ckl-pad-x);
  white-space: pre;
  word-wrap: normal;
  overflow-wrap: normal;
}

.ckl-editor-highlight {
  overflow: hidden;
  color: var(--color-text);
  pointer-events: none;
}

.ckl-editor textarea {
  overflow: auto;
  resize: none;
  background: transparent;
  color: transparent;
  caret-color: var(--color-text);
}

.ckl-editor textarea::placeholder {
  color: var(--color-text-light);
}

.ckl-editor textarea:focus {
  outline: none;
}

/* A band behind the line the caret is on. Positioned by script. */
.ckl-editor-caretline {
  position: absolute;
  left: 0;
  right: 0;
  height: var(--ckl-line);
  background: var(--color-bg-alt);
  pointer-events: none;
  display: none;
}

.ckl-editor-caretline.is-visible {
  display: block;
}

/* Token colours (.tok-*) and diagnostic styling (.contrib-diag*) now live in
   generateStyles() -> css/style.css, because the homepage hero renders the same
   highlighted CKL and the same linter diagnostics and does not load this file. */

/* --------------------------------------------------------------------------
   Metadata
   -------------------------------------------------------------------------- */

.contrib-meta {
  margin: 2rem 0 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.contrib-meta legend {
  padding: 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
}

.contrib-meta-intro {
  margin-bottom: 1.25rem;
}

.contrib-meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.contrib-field--wide {
  grid-column: 1 / -1;
}

.contrib-meta-issues {
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.contrib-meta-issues:empty {
  display: none;
}

.contrib-meta-issue {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--color-text-light);
}

/* --------------------------------------------------------------------------
   Sending (step 3)
   -------------------------------------------------------------------------- */

.contrib-blocked {
  margin-bottom: 1.5rem;
  border: 1px solid var(--color-error);
  border-left-width: 4px;
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  background: #fee2e2;
}

.contrib-blocked h3 {
  margin: 0 0 0.5rem;
  font-size: 1.0625rem;
  color: #991b1b;
}

.contrib-blocked ul {
  margin: 0 0 1rem;
  padding-left: 1.25rem;
  color: #7f1d1d;
  line-height: 1.6;
}

.contrib-send {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
  gap: 2rem;
  align-items: start;
}

.contrib-send-side h3 {
  margin: 0 0 0.375rem;
  font-size: 0.9375rem;
}

.contrib-filename {
  margin: 0 0 0.75rem;
  font-size: 0.8125rem;
  color: var(--color-text-light);
  overflow-wrap: anywhere;
}

/* The raw .ckl.md on step 3. Distinct from .contrib-method, the step list. */
.contrib-file-preview {
  margin: 0;
  max-height: 24rem;
  overflow: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
  background: var(--color-bg-alt);
  font-size: 0.75rem;
  line-height: 1.55;
}

.btn.is-disabled {
  opacity: 0.5;
  pointer-events: none;
}

.btn.is-confirmed {
  background: var(--color-success);
  border-color: var(--color-success);
}

.contrib-guide-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

/* --------------------------------------------------------------------------
   Narrow screens
   -------------------------------------------------------------------------- */

@media (max-width: 900px) {
  .contrib-check,
  .contrib-send {
    grid-template-columns: 1fr;
  }

  .contrib-report {
    max-height: none;
  }

  .ckl-editor {
    height: 22rem;
  }
}

@media (max-width: 640px) {
  .contrib-stepper {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .contrib-option {
    padding: 1.25rem 1rem;
  }

  .contrib-meta {
    padding: 1.25rem 1rem;
  }

  .contrib-nav .btn,
  .contrib-actions .btn {
    flex: 1 1 auto;
    text-align: center;
  }
}

/* --------------------------------------------------------------------------
   The method preview (step 2)

   Deliberately close to the published recipe page's step list, since that is
   what it is claiming to show.
   -------------------------------------------------------------------------- */

.contrib-method {
  margin-top: 2rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.contrib-method h3 {
  margin: 0 0 0.25rem;
  font-family: var(--font-display);
  font-size: 1.0625rem;
}

.contrib-method-intro {
  margin-bottom: 1.25rem;
}

.contrib-method-intro:empty {
  margin-bottom: 0;
}

.contrib-method-empty {
  margin: 0;
  color: var(--color-text-light);
  font-size: 0.9375rem;
}

.contrib-method-empty[hidden] {
  display: none;
}

.contrib-method-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.contrib-method-steps:empty {
  display: none;
}

.contrib-step-row {
  display: grid;
  grid-template-columns: 1.75rem minmax(0, 1fr);
  gap: 0.875rem;
  align-items: start;
}

.contrib-step-number {
  display: grid;
  place-items: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-size: 0.8125rem;
  font-weight: 700;
}

.contrib-step-body {
  min-width: 0;
  padding-top: 0.1875rem;
}

.contrib-step-text {
  margin: 0;
  line-height: 1.6;
}

.contrib-step-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.375rem;
}

.contrib-step-technique {
  padding: 0.0625rem 0.4375rem;
  border-radius: 3px;
  background: var(--color-secondary-light);
  color: #065f46;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.contrib-step-cue {
  flex-basis: 100%;
  font-size: 0.8125rem;
  color: var(--color-text-light);
  font-style: italic;
}