/* ==========================================================================
   Components — buttons, nav links, panels, tags, forms, accordions, etc.
   ========================================================================== */

/* ---- Logo ------------------------------------------------------------------ */
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  font-family: var(--font-display);
  font-weight: var(--weight-semibold);
  font-size: var(--text-md);
  color: var(--color-text-inverse);
  text-decoration: none;
  letter-spacing: var(--tracking-tight);
}

.brand__mark {
  inline-size: 1.75rem;
  block-size: 1.75rem;
  flex-shrink: 0;
}

.brand__name {
  white-space: nowrap;
}

/* ---- Buttons ---------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xs);
  padding: 0.85rem 1.5rem;
  min-block-size: 44px;
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-weight: var(--weight-semibold);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-normal);
  text-decoration: none;
  border: 1px solid transparent;
  transition:
    background-color var(--duration-fast) var(--ease-standard),
    border-color var(--duration-fast) var(--ease-standard),
    color var(--duration-fast) var(--ease-standard),
    transform var(--duration-fast) var(--ease-standard);
}

.btn:active {
  transform: translateY(1px);
}

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-ink-900);
  border-color: var(--color-accent);
}

.btn--primary:hover {
  background-color: var(--color-teal-400);
  border-color: var(--color-teal-400);
  color: var(--color-ink-900);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-text-inverse);
  border-color: var(--color-border-inverse);
}

.btn--secondary:hover {
  border-color: var(--color-accent-on-dark);
  color: var(--color-accent-on-dark);
}

/* Secondary button used on light surfaces */
.btn--outline {
  background-color: transparent;
  color: var(--color-ink-900);
  border-color: var(--color-graphite-400);
}

.btn--outline:hover {
  border-color: var(--color-accent-strong);
  color: var(--color-accent-strong);
}

.btn--block {
  width: 100%;
}

.btn--sm {
  padding: 0.6rem 1.1rem;
  font-size: var(--text-xs);
  min-block-size: 38px;
}

/* ---- Nav links --------------------------------------------------------------- */
.primary-nav a {
  display: inline-flex;
  align-items: center;
  padding-block: var(--space-2xs);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-inverse-muted);
  text-decoration: none;
  border-block-end: 2px solid transparent;
  transition:
    color var(--duration-fast) var(--ease-standard),
    border-color var(--duration-fast) var(--ease-standard);
}

.primary-nav a:hover,
.primary-nav a[aria-current='page'] {
  color: var(--color-text-inverse);
  border-block-end-color: var(--color-accent-on-dark);
}

.footer-nav-group a {
  color: var(--color-text-inverse-muted);
  text-decoration: none;
  font-size: var(--text-sm);
}

.footer-nav-group a:hover {
  color: var(--color-accent-on-dark);
}

.footer-bottom a {
  color: var(--color-text-inverse-muted);
}

.footer-bottom a:hover {
  color: var(--color-accent-on-dark);
}

/* ---- Nav toggle (hamburger) --------------------------------------------------- */
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  inline-size: 44px;
  block-size: 44px;
  border-radius: var(--radius-sm);
  color: var(--color-text-inverse);
}

.icon-btn:hover {
  background-color: rgba(245, 243, 238, 0.08);
}

.icon-btn svg {
  inline-size: 22px;
  block-size: 22px;
}

.nav-toggle .icon-close {
  display: none;
}

.nav-toggle[aria-expanded='true'] .icon-open {
  display: none;
}

.nav-toggle[aria-expanded='true'] .icon-close {
  display: block;
}

/* ---- Eyebrow / kicker -----------------------------------------------------------
   Used only for genuine section labels (e.g. "Modernization Assessment"),
   never as decorative ALL-CAPS chrome — sentence case, quiet weight. */
.kicker {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-accent-strong);
}

.on-dark .kicker {
  color: var(--color-accent-on-dark);
}

.kicker::before {
  content: '';
  inline-size: 1.25rem;
  block-size: 2px;
  background-color: currentcolor;
}

/* ---- Tag / pill -------------------------------------------------------------- */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  border: var(--border-hairline);
  color: var(--color-text-muted);
}

.on-dark .tag {
  border-color: var(--color-border-inverse);
  color: var(--color-text-inverse-muted);
}

.tag--accent {
  border-color: var(--color-accent);
  color: var(--color-accent-strong);
}

/* ---- Panel / card (flat, bordered — no shadow-card kit) ----------------------- */
.panel {
  background-color: var(--color-bg-raised);
  border: var(--border-hairline);
  padding: var(--space-lg);
}

.panel--dark {
  background-color: var(--color-bg-inverse-raised);
  border-color: var(--color-border-inverse);
  color: var(--color-text-inverse);
}

.panel h3 {
  margin-block-end: var(--space-2xs);
}

.panel__meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-sm);
  margin-block-end: var(--space-sm);
}

.panel-link {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: border-color var(--duration-fast) var(--ease-standard);
}

.panel-link:hover {
  border-color: var(--color-accent-strong);
}

/* ---- Bento capability grid (1 featured + 3 supporting, not identical cards) --- */
.capability-bento {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
}

.capability-bento__featured {
  background-color: var(--color-bg-inverse-raised);
  border: var(--border-hairline-inverse);
  color: var(--color-text-inverse);
  padding: var(--space-xl) var(--space-lg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-sm);
  text-decoration: none;
  transition: border-color var(--duration-fast) var(--ease-standard);
}

.capability-bento__featured:hover {
  border-color: var(--color-accent-on-dark);
}

.capability-bento__featured h3 {
  font-size: var(--text-lg);
  color: var(--color-text-inverse);
}

.capability-bento__featured p {
  color: var(--color-text-inverse-muted);
  max-width: 38ch;
}

.capability-bento__cta {
  margin-block-start: var(--space-xs);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-accent-on-dark);
}

.capability-bento__items {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .capability-bento__items {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .capability-bento {
    grid-template-columns: 1.1fr 1fr;
    align-items: stretch;
  }

  .capability-bento__items {
    grid-template-columns: 1fr;
    grid-template-rows: repeat(3, 1fr);
  }
}

/* ---- Warning-signs list -------------------------------------------------------- */
.signal-list {
  display: grid;
  gap: 1px;
  background-color: var(--color-border);
  border: var(--border-hairline);
}

.signal-list__item {
  background-color: var(--color-bg-raised);
  padding: var(--space-md);
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
}

.signal-list__icon {
  flex-shrink: 0;
  color: var(--color-accent-strong);
  margin-block-start: 0.2em;
}

@media (min-width: 768px) {
  .signal-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .signal-list {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---- Numbered process (genuinely sequential content only) --------------------- */
.process-steps {
  display: grid;
  gap: var(--space-md);
  counter-reset: step;
}

.process-step {
  position: relative;
  padding-inline-start: 3.5rem;
  padding-block: var(--space-sm);
  border-block-start: var(--border-hairline);
}

.on-dark .process-step {
  border-block-start: var(--border-hairline-inverse);
}

.process-step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  inset-inline-start: 0;
  inset-block-start: var(--space-sm);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-accent-strong);
}

.on-dark .process-step::before {
  color: var(--color-accent-on-dark);
}

@media (min-width: 1024px) {
  .process-steps {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
  }

  .process-step {
    padding-inline-start: 0;
    padding-block-start: var(--space-lg);
  }

  .process-step::before {
    position: static;
    display: block;
    margin-block-end: var(--space-sm);
  }
}

/* ---- Stat rail (vertical stack of bordered stat facts, hero visual slot) ------- */
.stat-rail {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background-color: var(--color-border-inverse);
  border: var(--border-hairline-inverse);
}

.stat-rail__item {
  background-color: var(--color-bg-inverse);
  padding: var(--space-lg);
  display: flex;
  align-items: baseline;
  gap: var(--space-md);
}

.stat-rail__figure {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  color: var(--color-accent-on-dark);
  flex-shrink: 0;
  min-inline-size: 3.5rem;
}

.stat-rail__label {
  font-size: var(--text-sm);
  color: var(--color-text-inverse-muted);
  max-width: 28ch;
}

/* ---- Career timeline (experience.html) ----------------------------------------
   Genuinely sequential (reverse-chronological work history), so a connecting
   line + marker dot is warranted here — unlike decorative 01/02/03 numbering,
   which CLAUDE.md §10 reserves for the four-stage assessment process. */
.timeline {
  border-inline-start: 2px solid var(--color-border);
  display: grid;
}

.on-dark .timeline {
  border-inline-start-color: var(--color-border-inverse);
}

.timeline__item {
  position: relative;
  padding-inline-start: var(--space-lg);
  padding-block: var(--space-sm) var(--space-md);
}

.timeline__item::before {
  content: '';
  position: absolute;
  inset-inline-start: -5px;
  inset-block-start: 1.7rem;
  inline-size: 8px;
  block-size: 8px;
  border-radius: 50%;
  background-color: var(--color-accent-strong);
}

.timeline__dates {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--color-accent-strong);
}

.timeline__role {
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: var(--weight-semibold);
  margin-block-start: var(--space-3xs);
}

.timeline__org {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

@media (min-width: 768px) {
  .timeline__item {
    display: grid;
    grid-template-columns: 9rem 1fr;
    gap: var(--space-md);
    align-items: baseline;
    padding-block: var(--space-md);
  }

  .timeline__dates {
    padding-block-start: 0.2em;
  }
}

/* ---- Pricing / engagement panel ------------------------------------------------ */
.price-panel {
  border: var(--border-hairline);
  background-color: var(--color-bg-raised);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
}

.price-panel__figure {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--color-ink-900);
  letter-spacing: var(--tracking-tight);
}

.price-panel__label {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text-muted);
}

.price-panel--featured {
  border-color: var(--color-accent-strong);
  border-width: 2px;
}

/* ---- FAQ / accordion (native <details>, enhanced) ------------------------------ */
.faq-list {
  border-block-start: var(--border-hairline);
}

.on-dark .faq-list {
  border-block-start: var(--border-hairline-inverse);
}

.faq-item {
  border-block-end: var(--border-hairline);
}

.on-dark .faq-item {
  border-block-end: var(--border-hairline-inverse);
}

.faq-item > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding-block: var(--space-md);
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: var(--weight-medium);
  cursor: pointer;
  list-style: none;
}

.faq-item > summary::-webkit-details-marker {
  display: none;
}

.faq-item__icon {
  flex-shrink: 0;
  inline-size: 20px;
  block-size: 20px;
  color: var(--color-accent-strong);
  transition: transform var(--duration-base) var(--ease-standard);
}

.on-dark .faq-item__icon {
  color: var(--color-accent-on-dark);
}

.faq-item[open] > summary .faq-item__icon {
  transform: rotate(45deg);
}

.faq-item__body {
  padding-block-end: var(--space-md);
  max-width: var(--container-text);
  color: var(--color-text-muted);
}

.on-dark .faq-item__body {
  color: var(--color-text-inverse-muted);
}

/* JS-enhanced smooth open (progressive; native details works without it) */
.faq-item[data-enhanced] > summary {
  outline-offset: 4px;
}

/* ---- Form ------------------------------------------------------------------- */
.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-3xs);
}

.form-field label {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
}

.form-field .hint {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.form-field input,
.form-field select,
.form-field textarea {
  padding: 0.75rem 0.9rem;
  min-block-size: 44px;
  border: 1px solid var(--color-graphite-400);
  border-radius: var(--radius-sm);
  background-color: var(--color-paper-000);
  font-size: var(--text-base);
}

.form-field textarea {
  min-block-size: 8rem;
  resize: vertical;
}

.form-field input:focus-visible,
.form-field select:focus-visible,
.form-field textarea:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 1px;
}

.form-field[data-invalid='true'] input,
.form-field[data-invalid='true'] select,
.form-field[data-invalid='true'] textarea {
  border-color: var(--color-danger);
}

.form-field .error-message {
  display: none;
  font-size: var(--text-xs);
  color: var(--color-danger);
}

.form-field[data-invalid='true'] .error-message {
  display: block;
}

.form-grid {
  display: grid;
  gap: var(--space-md);
}

@media (min-width: 640px) {
  .form-grid--2 {
    grid-template-columns: 1fr 1fr;
  }
}

.form-notice {
  background-color: var(--color-amber-100);
  border: 1px solid var(--color-amber-600);
  color: var(--color-amber-600);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
}

.form-status {
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  border: var(--border-hairline);
  opacity: 1;
  transition: opacity var(--duration-slow) var(--ease-standard);
}

.form-status[hidden] {
  display: none;
}

/* Confirmed-success messages fade themselves out a few seconds after
   showing (see js/contact.js) — errors and the "not connected yet" notice
   are never given this class, since a visitor needs time to act on them. */
.form-status--dismissing {
  opacity: 0;
}

.form-status[data-state='success'] {
  border-color: var(--color-teal-700);
  background-color: #e4f3f0;
}

.form-status[data-state='error'] {
  border-color: var(--color-danger);
  background-color: var(--color-danger-bg);
}

/* Honest "not connected yet / opening your email client" state — never
   styled as success, since no delivery has been confirmed. */
.form-status[data-state='info'] {
  border-color: var(--color-graphite-400);
  background-color: var(--color-vellum-050);
  color: var(--color-graphite-800);
}

/* Visually hidden honeypot field — kept in the accessibility tree's flow
   position (not display:none) since some bots skip that, but explicitly
   removed from tab order and screen-reader discovery for real visitors. */
.form-honeypot {
  position: absolute;
  inset-inline-start: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ---- Divider with label ------------------------------------------------------ */
.rule {
  border: none;
  border-block-start: var(--border-hairline);
  margin-block: var(--space-lg);
}

/* ---- Feature rows (divider list — an alternative to boxed card grids) -------- */
.feature-rows {
  display: grid;
  border-block-start: var(--border-hairline);
}

.feature-rows__item {
  padding-block: var(--space-md);
  border-block-end: var(--border-hairline);
}

.on-dark .feature-rows {
  border-block-start: var(--border-hairline-inverse);
}

.on-dark .feature-rows__item {
  border-block-end: var(--border-hairline-inverse);
}

.feature-rows__item h3 {
  font-size: var(--text-md);
  margin-block-end: var(--space-3xs);
}

@media (min-width: 768px) {
  .feature-rows {
    grid-template-columns: repeat(2, 1fr);
    column-gap: var(--space-xl);
  }
}

@media (min-width: 1024px) {
  .feature-rows--3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---- Scenario / capability list ---------------------------------------------- */
.definition-list {
  display: grid;
  gap: var(--space-md);
}

.definition-list dt {
  font-family: var(--font-display);
  font-weight: var(--weight-semibold);
  margin-block-end: var(--space-3xs);
}

.definition-list dd {
  color: var(--color-text-muted);
}

/* ---- Skip-to / anchor utility --------------------------------------------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}