/* ==========================================================================
   Á CHÂU ELECTRIC — BRAND DESIGN SYSTEM
   04 · BUTTONS (§6) · CARDS (§7) · CTA (§15) · SUPPORT COMPONENTS
   Every component here is rendered by inc/achau-components.php.
   ========================================================================== */

/* 6. BUTTONS — three intents only (primary / secondary / emergency) + ghost
   ========================================================================== */
.ae-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--ae-space-2);
  min-height: 50px;
  padding: 0 var(--ae-space-5);
  border: 1px solid transparent;
  border-radius: var(--ae-radius-sm);
  font-family: var(--ae-font);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--ae-transition), color var(--ae-transition), border-color var(--ae-transition),
    transform var(--ae-transition);
}
.ae-btn svg {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
}
.ae-btn--primary {
  background: var(--ae-blue);
  color: var(--ae-on-blue);
}
.ae-btn--primary:hover,
.ae-btn--primary:focus-visible {
  background: var(--ae-blue-dark);
  color: var(--ae-white);
}
.ae-btn--emergency {
  background: var(--ae-orange);
  color: var(--ae-on-orange);
}
.ae-btn--emergency:hover,
.ae-btn--emergency:focus-visible {
  background: var(--ae-gold);
  color: var(--ae-on-gold);
}
.ae-btn--secondary {
  background: transparent;
  border-color: var(--ae-line-strong);
  color: var(--ae-white);
}
.ae-btn--secondary:hover,
.ae-btn--secondary:focus-visible {
  border-color: var(--ae-gold);
  color: var(--ae-gold);
}
.ae-btn--ghost {
  min-height: 44px;
  padding: 0 var(--ae-space-4);
  background: transparent;
  color: var(--ae-gold);
  font-size: 0.8125rem;
}
.ae-btn--ghost:hover,
.ae-btn--ghost:focus-visible {
  color: var(--ae-white);
}
.ae-btn--sm {
  min-height: 42px;
  padding: 0 var(--ae-space-4);
  font-size: 0.75rem;
}
.ae-btn--block {
  width: 100%;
}
.ae-btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--ae-space-3);
  margin: 0;
  padding: 0;
  list-style: none;
}
/* 7. CARDS — one base component, six branded modifiers (no duplicated markup)
   ========================================================================== */
.ae-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--ae-space-3);
  height: 100%;
  padding: var(--ae-space-5);
  background: var(--ae-surface);
  border: 1px solid var(--ae-line);
  border-radius: var(--ae-radius);
  transition: border-color var(--ae-transition), transform var(--ae-transition), background-color var(--ae-transition);
}
.ae-card:hover {
  border-color: var(--ae-line-strong);
  transform: translateY(-3px);
}
.ae-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: var(--ae-radius-sm);
  background: var(--ae-blue-soft);
  color: var(--ae-blue);
  border: 1px solid rgba(4, 76, 252, 0.35);
}
.ae-card__icon svg {
  width: 24px;
  height: 24px;
}
.ae-card__title {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--ae-white);
}
.ae-card__text {
  margin: 0;
  font-size: var(--ae-fs-small);
  line-height: 1.6;
  color: var(--ae-text-muted);
}
.ae-card__cta {
  margin-top: auto;
  padding-top: var(--ae-space-3);
  display: inline-flex;
  align-items: center;
  gap: var(--ae-space-2);
  font-size: var(--ae-fs-caption);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ae-gold);
  text-decoration: none;
}
.ae-card__cta:hover {
  color: var(--ae-white);
}
.ae-card__cta svg {
  width: 14px;
  height: 14px;
}
.ae-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}
.ae-card__list li {
  position: relative;
  padding-left: var(--ae-space-4);
  font-size: var(--ae-fs-small);
  color: var(--ae-text-muted);
}
.ae-card__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 2px;
  background: var(--ae-orange);
}

/* Service card: technical numbered plate (01 … 10) */
.ae-card--service {
  padding-top: var(--ae-space-6);
}
.ae-card__num {
  position: absolute;
  top: var(--ae-space-4);
  right: var(--ae-space-5);
  font-size: 0.6875rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--ae-gray-1);
}
.ae-card--service::after {
  content: '';
  position: absolute;
  inset: auto var(--ae-space-5) 0 var(--ae-space-5);
  height: 2px;
  background: linear-gradient(90deg, var(--ae-blue), var(--ae-orange));
  opacity: 0;
  transition: opacity var(--ae-transition);
}
.ae-card--service:hover::after {
  opacity: 1;
}

/* Solution card: compact, icon left */
.ae-card--solution {
  flex-direction: row;
  align-items: center;
  gap: var(--ae-space-4);
  padding: var(--ae-space-4) var(--ae-space-5);
}
.ae-card--solution .ae-card__icon {
  width: 40px;
  height: 40px;
  flex: 0 0 auto;
  background: var(--ae-orange-soft);
  border-color: rgba(252, 124, 4, 0.32);
  color: var(--ae-orange);
}
.ae-card--solution .ae-card__title {
  font-size: 0.9375rem;
}

/* Capability card */
.ae-card--capability {
  border-left: 2px solid var(--ae-blue);
}
.ae-card--capability .ae-card__icon {
  background: var(--ae-gold-soft);
  border-color: rgba(252, 156, 4, 0.3);
  color: var(--ae-gold);
}

/* Equipment card: dense technical chip */
.ae-card--equipment {
  gap: var(--ae-space-2);
  padding: var(--ae-space-4);
  align-items: flex-start;
}
.ae-card--equipment .ae-card__icon {
  width: 36px;
  height: 36px;
  background: var(--ae-dark-3);
  border-color: var(--ae-line-strong);
  color: var(--ae-gray-2);
}
.ae-card--equipment .ae-card__icon svg {
  width: 20px;
  height: 20px;
}
.ae-card--equipment .ae-card__title {
  font-size: var(--ae-fs-small);
  font-weight: 600;
}

/* Project / article cards — architecture-ready (rendered only with real data) */
.ae-card__media {
  aspect-ratio: 16 / 10;
  border-radius: var(--ae-radius-sm);
  background: linear-gradient(145deg, var(--ae-dark-3), var(--ae-dark-2));
  border: 1px solid var(--ae-line);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ae-gray-1);
  font-size: var(--ae-fs-caption);
  letter-spacing: var(--ae-ls-wide);
  text-transform: uppercase;
}
.ae-card__meta {
  font-size: var(--ae-fs-caption);
  color: var(--ae-gold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
/* 7.1 BADGES + ICONS + TECHNICAL LISTS
   ========================================================================== */
.ae-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--ae-line-strong);
  background: var(--ae-dark-3);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ae-gray-2);
  white-space: nowrap;
}
.ae-badge--update {
  border-color: rgba(252, 124, 4, 0.4);
  background: var(--ae-orange-soft);
  color: var(--ae-gold);
}
.ae-badge--brand {
  border-color: rgba(4, 76, 252, 0.45);
  background: var(--ae-blue-soft);
  color: var(--ae-gray-3);
}
.ae-icon {
  display: inline-flex;
  color: var(--ae-blue);
}
.ae-icon svg {
  width: 24px;
  height: 24px;
}
.ae-tech-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--ae-space-3);
}
.ae-tech-list li {
  position: relative;
  padding-left: var(--ae-space-6);
  color: var(--ae-text-muted);
}
.ae-tech-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 14px;
  height: 2px;
  background: var(--ae-orange);
}
.ae-tech-list strong {
  color: var(--ae-white);
  font-weight: 700;
}

/* 8.1 PROCESS TIMELINE (§8 helper used by the engineering-process section)
   ========================================================================== */
.ae-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(9, minmax(0, 1fr));
  gap: var(--ae-space-3);
  counter-reset: ae-step;
}
.ae-timeline__step {
  position: relative;
  padding-top: var(--ae-space-6);
}
.ae-timeline__step::before {
  counter-increment: ae-step;
  content: counter(ae-step, decimal-leading-zero);
  position: absolute;
  top: 0;
  left: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid rgba(4, 76, 252, 0.5);
  background: var(--ae-dark-2);
  font-size: 0.6875rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--ae-gold);
}
.ae-timeline__step::after {
  content: '';
  position: absolute;
  top: 17px;
  left: 42px;
  right: -14px;
  height: 1px;
  background: linear-gradient(90deg, var(--ae-line-strong), transparent);
}
.ae-timeline__step:last-child::after {
  display: none;
}
.ae-timeline__title {
  margin: 0 0 4px;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ae-white);
}
.ae-timeline__text {
  margin: 0;
  font-size: 0.75rem;
  line-height: 1.55;
  color: var(--ae-text-dim);
}

/* 15. CTA BLOCKS + CONTACT BLOCK
   ========================================================================== */
.ae-cta {
  position: relative;
  overflow: hidden;
  padding: clamp(32px, 4.4vw, var(--ae-space-9));
  background: linear-gradient(120deg, var(--ae-dark-1) 0%, var(--ae-dark) 58%, var(--ae-dark-2) 100%);
  border: 1px solid var(--ae-line);
  border-radius: var(--ae-radius-lg);
}
.ae-cta::before {
  content: '';
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--ae-blue), var(--ae-orange), var(--ae-gold));
}
.ae-cta--split {
  display: grid;
  gap: var(--ae-space-6);
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  align-items: center;
}
.ae-contact {
  display: grid;
  gap: var(--ae-space-4);
  margin: 0;
  padding: 0;
  list-style: none;
}
.ae-contact__item {
  display: flex;
  gap: var(--ae-space-4);
  align-items: flex-start;
}
.ae-contact__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  border-radius: var(--ae-radius-sm);
  background: var(--ae-dark-3);
  border: 1px solid var(--ae-line);
  color: var(--ae-gold);
}
.ae-contact__icon svg {
  width: 20px;
  height: 20px;
}
.ae-contact__label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: var(--ae-ls-wide);
  text-transform: uppercase;
  color: var(--ae-text-dim);
}
.ae-contact__value {
  display: block;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--ae-white);
  text-decoration: none;
  line-height: 1.45;
}
a.ae-contact__value:hover {
  color: var(--ae-gold);
}
.ae-contact__value--phone {
  font-size: 1.375rem;
  letter-spacing: 0.02em;
  color: var(--ae-gold);
}

/* FAQ component (§7 helper) — native details/summary, keyboard accessible */
.ae-faq {
  border: 1px solid var(--ae-line);
  border-radius: var(--ae-radius);
  background: var(--ae-surface);
  padding: 0 var(--ae-space-5);
}
.ae-faq > details {
  border-bottom: 1px solid var(--ae-line);
}
.ae-faq > details:last-child {
  border-bottom: 0;
}
.ae-faq summary {
  cursor: pointer;
  padding: var(--ae-space-4) 0;
  font-weight: 700;
  color: var(--ae-white);
  list-style: none;
}
.ae-faq summary::-webkit-details-marker {
  display: none;
}
.ae-faq summary::after {
  content: '+';
  float: right;
  color: var(--ae-gold);
  font-weight: 800;
}
.ae-faq details[open] summary::after {
  content: '–';
}
.ae-faq p {
  margin: 0 0 var(--ae-space-4);
  color: var(--ae-text-muted);
  font-size: var(--ae-fs-small);
}