/* ============================================================
   Prompt tool page + Skills pages — shared styles
   Extends styles.css + library.css. Walter design system.
   ============================================================ */

/* ─── Tool page layout ─── */
.tool-hero {
  padding: 32px 0 24px;
  background: var(--surface-1);
}
.tool-crumb {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.tool-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font: var(--fw-medium) var(--label-2-size)/1 var(--font-sans);
  color: var(--text-secondary);
  transition: color 120ms;
}
.tool-back:hover { color: var(--text-primary); }
.tool-back svg { width: 13px; height: 13px; }
.tool-cat-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 11px;
  border-radius: var(--radius-pill);
  background: var(--brand-blue-50);
  border: 1px solid var(--brand-blue-100);
  font: var(--fw-medium) var(--label-3-size)/1 var(--font-sans);
  color: var(--brand-blue-700);
}
.tool-cat-pill-num {
  font-family: var(--font-mono);
  font-weight: var(--fw-medium);
  opacity: 0.6;
}

.tool-h1 {
  font: var(--fw-semibold) 44px/1.05 var(--font-sans);
  letter-spacing: -0.6px;
  margin: 0 0 14px;
  color: var(--text-primary);
  text-wrap: balance;
  max-width: 820px;
}
.tool-sub {
  font: var(--fw-regular) 18px/1.55 var(--font-sans);
  color: var(--text-secondary);
  margin: 0 0 24px;
  max-width: 760px;
  text-wrap: pretty;
}
.tool-meta-row {
  display: flex;
  gap: 24px;
  align-items: center;
  border-top: 1px solid var(--alpha-100);
  border-bottom: 1px solid var(--alpha-100);
  padding: 14px 0;
  flex-wrap: wrap;
}
.tool-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font: var(--fw-medium) var(--label-3-size)/1 var(--font-sans);
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
.tool-meta-item b {
  font-family: var(--font-mono);
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
  text-transform: none;
  letter-spacing: 0;
  font-size: 13px;
}
.tool-meta-dot {
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--text-placeholder);
}

/* ─── Two-column workbench ─── */
.tool-main {
  padding: 32px 0 64px;
  background: var(--tw-neutral-50);
  border-top: 1px solid var(--alpha-100);
}
.tool-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}

.tool-panel {
  background: var(--surface-raised);
  border: 1px solid var(--alpha-100);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.tool-panel-hd {
  padding: 14px 20px;
  border-bottom: 1px solid var(--alpha-100);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--surface-1);
}
.tool-panel-hd h2 {
  font: var(--fw-semibold) 14px/1 var(--font-sans);
  margin: 0;
  color: var(--text-primary);
  letter-spacing: 0;
  text-transform: uppercase;
  letter-spacing: 1.4px;
  font-size: 11px;
  color: var(--text-tertiary);
  font-weight: var(--fw-medium);
}
.tool-panel-hint {
  font: var(--fw-regular) var(--body-3-size)/1 var(--font-sans);
  color: var(--text-tertiary);
}

/* ─── Form ─── */
.tool-form {
  padding: 18px 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.tf-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.tf-row-pair {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 12px;
}
.tf-label {
  font: var(--fw-medium) var(--label-2-size)/1.2 var(--font-sans);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.tf-label-num {
  font: var(--fw-medium) 10px/1 var(--font-mono);
  color: var(--text-placeholder);
  letter-spacing: 0.5px;
}
.tf-help {
  font: var(--fw-regular) var(--body-3-size)/1.4 var(--font-sans);
  color: var(--text-tertiary);
}
.tf-input,
.tf-textarea,
.tf-select {
  width: 100%;
  height: 38px;
  border: 1px solid var(--alpha-200);
  border-radius: var(--radius-lg);
  padding: 0 12px;
  background: var(--surface-raised);
  font: var(--fw-regular) var(--body-2-size)/1 var(--font-sans);
  color: var(--text-primary);
  transition: border-color 120ms, box-shadow 120ms;
}
.tf-input::placeholder,
.tf-textarea::placeholder { color: var(--text-placeholder); }
.tf-textarea {
  height: auto;
  min-height: 80px;
  padding: 10px 12px;
  line-height: 1.55;
  resize: vertical;
  font-family: var(--font-mono);
  font-size: 12.5px;
}
.tf-input:focus,
.tf-textarea:focus,
.tf-select:focus {
  outline: none;
  border-color: var(--brand-blue-500);
  box-shadow: 0 0 0 3px var(--brand-blue-100);
}
.tf-select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 32px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23737373' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
}

/* Repeater */
.tf-rep {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.tf-rep-row {
  display: grid;
  grid-template-columns: 20px 1fr 28px;
  gap: 8px;
  align-items: center;
}
.tf-rep-num {
  font: var(--fw-medium) 11px/1 var(--font-mono);
  color: var(--text-placeholder);
  text-align: right;
}
.tf-rep-del {
  width: 28px; height: 28px;
  border: 1px solid var(--alpha-100);
  border-radius: var(--radius-md);
  background: var(--surface-raised);
  cursor: pointer;
  color: var(--text-tertiary);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 16px;
  line-height: 1;
  transition: all 120ms;
}
.tf-rep-del:hover { background: var(--tw-red-50); color: var(--tw-red-600); border-color: var(--tw-red-200); }
.tf-rep-del[disabled] { opacity: 0.35; cursor: not-allowed; }
.tf-rep-add {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-lg);
  border: 1px dashed var(--alpha-200);
  background: transparent;
  font: var(--fw-medium) var(--label-3-size)/1 var(--font-sans);
  color: var(--brand-blue-600);
  cursor: pointer;
  transition: all 120ms;
}
.tf-rep-add:hover {
  background: var(--brand-blue-50);
  border-color: var(--brand-blue-300);
  border-style: solid;
}

/* Reset button */
.tf-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 8px;
  border-top: 1px solid var(--alpha-100);
  margin-top: 4px;
  gap: 12px;
}
.tf-reset {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--alpha-100);
  background: transparent;
  font: var(--fw-medium) var(--label-3-size)/1 var(--font-sans);
  color: var(--text-tertiary);
  cursor: pointer;
  transition: all 120ms;
}
.tf-reset:hover { color: var(--text-primary); background: var(--alpha-50); }
.tf-fill-status {
  font: var(--fw-medium) var(--body-3-size)/1 var(--font-sans);
  color: var(--text-tertiary);
}
.tf-fill-status b {
  color: var(--brand-blue-600);
  font-family: var(--font-mono);
  font-weight: var(--fw-semibold);
}
.tf-fill-status.is-complete b { color: var(--tw-green-600); }

/* ─── Preview panel ─── */
.tool-preview-wrap {
  position: sticky;
  top: 80px;
}
.tool-preview {
  background: var(--tw-neutral-900);
  color: var(--tw-neutral-100);
  padding: 22px 24px 80px;
  font: var(--fw-regular) 13px/1.65 var(--font-mono);
  white-space: pre-wrap;
  word-break: break-word;
  min-height: 320px;
  margin: 0;
  position: relative;
  max-height: 520px;
  overflow: auto;
}
.tool-preview .ph {
  color: var(--brand-blue-300);
  background: rgba(5,106,255,0.18);
  padding: 1px 6px;
  border-radius: var(--radius-sm);
}
.tool-preview .ph.is-empty {
  color: var(--tw-amber-300);
  background: rgba(250,177,77,0.16);
  border: 1px dashed rgba(250,177,77,0.4);
  padding: 0 5px;
}
.tool-preview .filled {
  color: #fff;
  background: rgba(34,197,94,0.16);
  padding: 1px 4px;
  border-radius: var(--radius-sm);
  font-weight: var(--fw-medium);
}
.tool-preview .num { color: #f1c47b; font-weight: var(--fw-medium); }
.tool-preview .kw { color: #c4a5ff; font-weight: var(--fw-medium); }

.tool-preview-foot {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(180deg, rgba(28,25,23,0) 0%, var(--tw-neutral-900) 50%);
  padding: 40px 20px 16px;
  display: flex;
  justify-content: center;
}
.tool-copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: var(--radius-pill);
  background: var(--brand-blue-600);
  color: #fff;
  border: 0;
  font: var(--fw-semibold) var(--label-1-size)/1 var(--font-sans);
  cursor: pointer;
  transition: all 120ms cubic-bezier(.2,0,0,1);
  box-shadow: 0 1px 0 rgba(255,255,255,0.08) inset, 0 4px 12px rgba(5,106,255,0.35);
}
.tool-copy-btn:hover { background: var(--brand-blue-500); transform: translateY(-1px); }
.tool-copy-btn.is-copied {
  background: var(--tw-green-600);
  box-shadow: 0 1px 0 rgba(255,255,255,0.08) inset, 0 4px 12px rgba(34,197,94,0.35);
}
.tool-copy-btn svg { width: 14px; height: 14px; }

/* ─── Outcome callouts ─── */
.tool-outcome {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 20px;
  margin-top: 28px;
}
.tool-checklist {
  background: var(--surface-raised);
  border: 1px solid var(--alpha-100);
  border-radius: var(--radius-2xl);
  padding: 22px 24px;
}
.tool-checklist-eyebrow {
  font: var(--fw-medium) 11px/1 var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 1.4px;
  color: var(--brand-blue-600);
  margin-bottom: 10px;
}
.tool-checklist h3 {
  font: var(--fw-semibold) var(--h5-size)/1.25 var(--font-sans);
  letter-spacing: var(--h5-track);
  margin: 0 0 12px;
  color: var(--text-primary);
}
.tool-check {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.tool-check li {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 10px;
  font: var(--fw-regular) var(--body-2-size)/1.5 var(--font-sans);
  color: var(--text-secondary);
}
.tool-check svg {
  width: 16px; height: 16px;
  color: var(--tw-green-600);
  margin-top: 2px;
}
.tool-connect-note {
  padding-top: 14px;
  border-top: 1px solid var(--alpha-100);
  font: var(--fw-regular) var(--body-2-size)/1.5 var(--font-sans);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.tool-connect-note a {
  color: var(--brand-blue-600);
  font-weight: var(--fw-medium);
}
.tool-connect-note a:hover { color: var(--brand-blue-700); }

.tool-tip {
  background: var(--brand-blue-50);
  border: 1px solid var(--brand-blue-100);
  border-radius: var(--radius-2xl);
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.tool-tip-eyebrow {
  font: var(--fw-medium) 11px/1 var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 1.4px;
  color: var(--brand-blue-700);
}
.tool-tip h3 {
  font: var(--fw-semibold) var(--h6-size)/1.25 var(--font-sans);
  letter-spacing: var(--h6-track);
  margin: 0;
  color: var(--text-primary);
  text-wrap: balance;
}
.tool-tip p {
  font: var(--fw-regular) var(--body-2-size)/1.5 var(--font-sans);
  color: var(--text-secondary);
  margin: 0;
}
.tool-tip a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font: var(--fw-medium) var(--label-2-size)/1 var(--font-sans);
  color: var(--brand-blue-700);
  margin-top: auto;
}
.tool-tip a:hover { color: var(--brand-blue-800); }
.tool-tip a svg { width: 12px; height: 12px; }

/* ─── Related row ─── */
.tool-related {
  margin-top: 36px;
  padding: 22px 24px;
  background: var(--surface-raised);
  border: 1px solid var(--alpha-100);
  border-radius: var(--radius-2xl);
}
.tool-related-eyebrow {
  font: var(--fw-medium) 11px/1 var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 1.4px;
  color: var(--text-tertiary);
  margin-bottom: 12px;
}
.tool-related-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.tool-related-row a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--alpha-100);
  background: var(--surface-1);
  font: var(--fw-medium) var(--label-2-size)/1.3 var(--font-sans);
  color: var(--text-primary);
  transition: all 120ms;
}
.tool-related-row a:hover {
  border-color: var(--brand-blue-300);
  background: var(--brand-blue-50);
  color: var(--brand-blue-700);
}
.tool-related-row .related-num {
  font: var(--fw-medium) 10px/1 var(--font-mono);
  color: var(--text-tertiary);
  padding: 3px 6px;
  background: var(--surface-raised);
  border: 1px solid var(--alpha-100);
  border-radius: var(--radius-sm);
}

/* ─── Connect CTA strip ─── */
.tool-connect-strip {
  background: var(--surface-1);
  border-top: 1px solid var(--alpha-100);
  padding: 36px 0;
}
.tool-connect-strip-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.tool-connect-strip p {
  margin: 0;
  font: var(--fw-regular) var(--body-1-size)/1.5 var(--font-sans);
  color: var(--text-secondary);
  max-width: 540px;
}
.tool-connect-strip strong { color: var(--text-primary); font-weight: var(--fw-semibold); }

/* ─── Skills index ─── */
.skills-hero {
  padding: 56px 0 32px;
  background:
    radial-gradient(900px 380px at 50% -10%, rgb(232,224,247) 0%, rgba(232,224,247,0) 60%),
    var(--surface-1);
}
.skills-hero .lib-eyebrow .eyebrow-dot { background: var(--brand-purple-600); box-shadow: 0 0 0 3px var(--brand-purple-100); }
.skills-h1 {
  font: var(--fw-semibold) 48px/1.05 var(--font-sans);
  letter-spacing: -0.7px;
  margin: 0 0 14px;
  color: var(--text-primary);
  text-wrap: balance;
}
.skills-sub {
  font: var(--fw-regular) 18px/1.55 var(--font-sans);
  color: var(--text-secondary);
  margin: 0 0 24px;
  max-width: 640px;
}

.skills-explainer {
  background: var(--surface-raised);
  border: 1px solid var(--alpha-100);
  border-radius: var(--radius-2xl);
  padding: 22px 24px;
  margin-bottom: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
  position: relative;
}
.skills-explainer::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 60px; height: 3px;
  background: var(--brand-purple-600);
  border-radius: 0 0 var(--radius-sm) 0;
}
.skills-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: flex-start;
}
.skills-step-num {
  font: var(--fw-semibold) 11px/1 var(--font-mono);
  color: var(--brand-purple-700);
  background: var(--brand-purple-50);
  border: 1px solid var(--brand-purple-100);
  border-radius: var(--radius-md);
  padding: 6px 8px;
}
.skills-step h4 {
  font: var(--fw-semibold) var(--label-1-size)/1.3 var(--font-sans);
  margin: 0 0 4px;
  color: var(--text-primary);
}
.skills-step p {
  font: var(--fw-regular) var(--body-3-size)/1.5 var(--font-sans);
  color: var(--text-secondary);
  margin: 0;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.skill-card {
  background: var(--surface-raised);
  border: 1px solid var(--alpha-100);
  border-radius: var(--radius-2xl);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all 120ms;
  text-decoration: none;
  color: inherit;
  position: relative;
  overflow: hidden;
}
.skill-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 40px; height: 3px;
  background: var(--brand-purple-600);
  transition: width 200ms cubic-bezier(.2,0,0,1);
}
.skill-card:hover {
  border-color: var(--brand-purple-300);
  box-shadow: var(--shadow-sm);
}
.skill-card:hover::before { width: 100%; }

.skill-card-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font: var(--fw-medium) 11px/1 var(--font-mono);
  letter-spacing: 0.3px;
  color: var(--brand-purple-700);
  text-transform: uppercase;
}
.skill-card-eyebrow-num {
  padding: 3px 7px;
  border-radius: var(--radius-sm);
  background: var(--brand-purple-50);
  border: 1px solid var(--brand-purple-100);
  font-weight: var(--fw-semibold);
}
.skill-card h3 {
  font: var(--fw-semibold) var(--h5-size)/1.2 var(--font-sans);
  letter-spacing: var(--h5-track);
  margin: 0;
  color: var(--text-primary);
  text-wrap: balance;
}
.skill-card-desc {
  font: var(--fw-regular) var(--body-2-size)/1.5 var(--font-sans);
  color: var(--text-secondary);
  margin: 0;
}
.skill-card-for {
  font: var(--fw-regular) var(--body-3-size)/1.4 var(--font-sans);
  color: var(--text-tertiary);
  padding: 10px 0 0;
  border-top: 1px solid var(--alpha-100);
  margin-top: 4px;
}
.skill-card-for b { color: var(--text-secondary); font-weight: var(--fw-medium); }
.skill-card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: auto;
  padding-top: 12px;
}
.skill-card-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font: var(--fw-medium) var(--label-2-size)/1 var(--font-sans);
  color: var(--brand-purple-700);
}
.skill-card-cta svg { width: 12px; height: 12px; transition: transform 120ms; }
.skill-card:hover .skill-card-cta svg { transform: translateX(3px); }
.skill-card-meta {
  font: var(--fw-medium) 11px/1 var(--font-mono);
  color: var(--text-tertiary);
}

/* ─── Skill detail page ─── */
.skill-hero {
  padding: 32px 0 32px;
  background: var(--surface-1);
}
.skill-hero .tool-cat-pill {
  background: var(--brand-purple-50);
  border-color: var(--brand-purple-100);
  color: var(--brand-purple-700);
}
.skill-h1 {
  font: var(--fw-semibold) 44px/1.05 var(--font-sans);
  letter-spacing: -0.6px;
  margin: 0 0 14px;
  color: var(--text-primary);
  text-wrap: balance;
}
.skill-sub {
  font: var(--fw-regular) 18px/1.55 var(--font-sans);
  color: var(--text-secondary);
  margin: 0 0 24px;
  max-width: 760px;
  text-wrap: pretty;
}
.skill-install {
  background: var(--surface-raised);
  border: 1px solid var(--alpha-100);
  border-radius: var(--radius-2xl);
  padding: 18px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.skill-install-label {
  font: var(--fw-medium) 11px/1 var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 1.4px;
  color: var(--brand-purple-700);
}
.skill-install-steps {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  flex: 1;
}
.skill-install-step {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font: var(--fw-regular) var(--body-2-size)/1 var(--font-sans);
  color: var(--text-secondary);
}
.skill-install-step b {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--brand-purple-600);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font: var(--fw-semibold) 11px/1 var(--font-mono);
}

/* ─── Skill markdown viewer ─── */
.skill-block-wrap {
  padding: 32px 0 32px;
  background: var(--tw-neutral-50);
  border-top: 1px solid var(--alpha-100);
  border-bottom: 1px solid var(--alpha-100);
}
.skill-block {
  background: var(--tw-neutral-900);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  position: relative;
}
.skill-block-bar {
  background: var(--tw-neutral-800);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--tw-neutral-700);
}
.skill-block-bar-name {
  font: var(--fw-medium) 12px/1 var(--font-mono);
  color: var(--tw-neutral-300);
}
.skill-block-bar-meta {
  font: var(--fw-regular) 11px/1 var(--font-mono);
  color: var(--tw-neutral-500);
}
.skill-block-bar-dots {
  display: flex;
  gap: 5px;
}
.skill-block-bar-dots i {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--tw-neutral-600);
}
.skill-block-content {
  padding: 22px 26px;
  max-height: 560px;
  overflow: auto;
  color: var(--tw-neutral-100);
  font: var(--fw-regular) 12.5px/1.65 var(--font-mono);
  white-space: pre-wrap;
  word-break: break-word;
}
.skill-block-content .md-h1 {
  display: block;
  color: #fff;
  font-weight: var(--fw-semibold);
  font-size: 15px;
  margin: 0 0 14px;
}
.skill-block-content .md-h2 {
  display: block;
  color: #c4a5ff;
  font-weight: var(--fw-medium);
  font-size: 13.5px;
  margin: 18px 0 6px;
}
.skill-block-content .md-bullet {
  color: var(--brand-blue-300);
}
.skill-block-content .md-bold {
  color: #fff;
  font-weight: var(--fw-semibold);
}
.skill-block-copy {
  position: sticky;
  bottom: 0;
  left: 0;
  right: 0;
  margin: 0;
  padding: 14px 20px;
  display: flex;
  justify-content: center;
  background: linear-gradient(180deg, rgba(28,25,23,0) 0%, var(--tw-neutral-900) 60%);
}

/* ─── Before/after demo ─── */
.skill-demo {
  margin-top: 36px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-items: stretch;
}
.skill-demo-card {
  background: var(--surface-raised);
  border: 1px solid var(--alpha-100);
  border-radius: var(--radius-2xl);
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.skill-demo-card.is-before {
  background: var(--tw-neutral-50);
  border-color: var(--alpha-100);
}
.skill-demo-card.is-after {
  background: var(--brand-purple-50);
  border-color: var(--brand-purple-100);
}
.skill-demo-eyebrow {
  font: var(--fw-medium) 11px/1 var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 1.4px;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.skill-demo-card.is-after .skill-demo-eyebrow { color: var(--brand-purple-700); }
.skill-demo-card.is-after .skill-demo-eyebrow::before {
  content: "✓";
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--brand-purple-600);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: var(--fw-bold);
}
.skill-demo-eyebrow strong {
  font-weight: var(--fw-semibold);
}
.skill-demo-prompt {
  background: var(--surface-raised);
  border: 1px solid var(--alpha-100);
  border-radius: var(--radius-lg);
  padding: 12px 14px;
  font: var(--fw-regular) 12.5px/1.6 var(--font-mono);
  color: var(--text-primary);
  white-space: pre-wrap;
  word-break: break-word;
}
.skill-demo-prompt .strike {
  color: var(--text-tertiary);
  text-decoration: line-through;
}
.skill-demo-note {
  font: var(--fw-regular) var(--body-3-size)/1.5 var(--font-sans);
  color: var(--text-secondary);
  margin: 0;
}

/* ─── Customize section ─── */
.skill-customize {
  margin-top: 36px;
  padding: 28px 28px 32px;
  background: var(--surface-raised);
  border: 1px solid var(--alpha-100);
  border-radius: var(--radius-2xl);
}
.skill-customize-eyebrow {
  font: var(--fw-medium) 11px/1 var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 1.4px;
  color: var(--brand-purple-700);
  margin-bottom: 8px;
}
.skill-customize h3 {
  font: var(--fw-semibold) var(--h4-size)/1.2 var(--font-sans);
  letter-spacing: var(--h4-track);
  margin: 0 0 8px;
  color: var(--text-primary);
}
.skill-customize > p {
  font: var(--fw-regular) var(--body-2-size)/1.55 var(--font-sans);
  color: var(--text-secondary);
  margin: 0 0 22px;
  max-width: 640px;
}
.skill-mods {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.skill-mod {
  border: 1px solid var(--alpha-100);
  border-radius: var(--radius-xl);
  padding: 16px 18px;
  background: var(--surface-1);
}
.skill-mod h4 {
  font: var(--fw-semibold) var(--label-1-size)/1.3 var(--font-sans);
  margin: 0 0 6px;
  color: var(--text-primary);
}
.skill-mod p {
  font: var(--fw-regular) var(--body-3-size)/1.55 var(--font-sans);
  color: var(--text-secondary);
  margin: 0;
}
.skill-mod code {
  font-family: var(--font-mono);
  font-size: 11.5px;
  background: var(--brand-purple-50);
  color: var(--brand-purple-700);
  padding: 1px 5px;
  border-radius: var(--radius-sm);
}

/* ─── Skill related prompts ─── */
.skill-related {
  margin-top: 32px;
}

/* ─── Resources nav dropdown style ─── */
.nav-resources {
  position: relative;
}
.nav-resources-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--surface-raised);
  border: 1px solid var(--alpha-100);
  border-radius: var(--radius-xl);
  padding: 6px;
  min-width: 200px;
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-4px);
  transition: opacity 140ms, transform 140ms;
}
.nav-resources:hover .nav-resources-menu,
.nav-resources:focus-within .nav-resources-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.nav-resources-menu a {
  display: block;
  padding: 9px 12px;
  border-radius: var(--radius-md);
  font: var(--fw-medium) var(--label-2-size)/1.3 var(--font-sans);
  color: var(--text-secondary);
}
.nav-resources-menu a:hover {
  background: var(--brand-blue-50);
  color: var(--brand-blue-700);
}
.nav-resources-menu a small {
  display: block;
  font-weight: var(--fw-regular);
  font-size: 11px;
  color: var(--text-tertiary);
  margin-top: 2px;
}

/* ─── Responsive ─── */
@media (max-width: 900px) {
  .tool-grid { grid-template-columns: 1fr; }
  .tool-preview-wrap { position: static; }
  .tool-outcome { grid-template-columns: 1fr; }
  .tool-h1 { font-size: 32px; }
  .skill-h1 { font-size: 32px; }
  .skills-h1 { font-size: 36px; }
  .skills-grid { grid-template-columns: 1fr; }
  .skills-explainer { grid-template-columns: 1fr; gap: 14px; }
  .skill-demo { grid-template-columns: 1fr; }
  .skill-mods { grid-template-columns: 1fr; }
  .tf-row-pair { grid-template-columns: 1fr; }
}