/* ============================================
   STUDIO DA — Leistungen Page Styles
   Services, Accordion, Expertise
   ============================================ */

/* ===========================================
   SERVICE OVERVIEW GRID
   =========================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gutter);
}

.services-grid .service-card {
  display: flex;
  flex-direction: column;
}

.service-card__title {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: 500;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
  line-height: var(--leading-snug);
}

.service-card__text {
  font-size: var(--text-small);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  flex-grow: 1;
}

@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .services-grid {
    grid-template-columns: 1fr;
  }
}


/* ===========================================
   PROCESS / ACCORDION SECTION
   =========================================== */
.process-section {
  background-color: var(--color-bg-alt);
}

.accordion {
  max-width: var(--container-narrow);
  margin: 0 auto;
}

.accordion__item {
  border-bottom: 1px solid var(--color-border);
}

.accordion__item:first-child {
  border-top: 1px solid var(--color-border);
}

.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  padding: var(--space-xl) 0;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  transition: color var(--duration-normal) var(--ease-out);
}

.accordion__trigger:hover {
  color: var(--color-accent);
}

.accordion__trigger:hover .accordion__phase {
  color: var(--color-accent);
}

.accordion__header {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  flex: 1;
  min-width: 0;
}

.accordion__phase {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: 400;
  color: var(--color-accent);
  opacity: 0.5;
  flex-shrink: 0;
  min-width: 3ch;
  transition: color var(--duration-normal), opacity var(--duration-normal);
}

.accordion--open .accordion__phase {
  opacity: 1;
}

.accordion__title {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: 500;
  color: var(--color-text);
  line-height: var(--leading-snug);
  transition: color var(--duration-normal);
}

.accordion--open .accordion__title {
  color: var(--color-accent);
}

.accordion__icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--color-border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  transition: all var(--duration-normal) var(--ease-out);
}

.accordion--open .accordion__icon {
  border-color: var(--color-accent);
  background: var(--color-accent);
}

.accordion__icon::before,
.accordion__icon::after {
  content: '';
  position: absolute;
  background: var(--color-text);
  transition: all var(--duration-normal) var(--ease-out);
}

.accordion__icon::before {
  width: 14px;
  height: 1.5px;
}

.accordion__icon::after {
  width: 1.5px;
  height: 14px;
}

.accordion--open .accordion__icon::before,
.accordion--open .accordion__icon::after {
  background: var(--color-bg-dark);
}

.accordion--open .accordion__icon::after {
  transform: rotate(90deg);
  opacity: 0;
}

/* Smooth height transition for content */
.accordion__content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-slow) var(--ease-out);
}

.accordion__content-inner {
  padding: 0 0 var(--space-2xl) 0;
  padding-left: calc(3ch + var(--space-lg));
}

.accordion__content-inner p {
  font-size: var(--text-body);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-md);
}

.accordion__content-inner p:last-child {
  margin-bottom: 0;
}

.accordion__content-inner strong {
  color: var(--color-text);
  font-weight: 600;
}

.accordion__meta {
  display: flex;
  gap: var(--space-2xl);
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.accordion__meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.accordion__meta-icon {
  width: 18px;
  height: 18px;
  color: var(--color-accent);
  flex-shrink: 0;
}

.accordion__meta-label {
  font-size: var(--text-caption);
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  font-weight: 600;
}

.accordion__meta-value {
  font-size: var(--text-small);
  color: var(--color-text);
  font-weight: 500;
}


/* ===========================================
   EXPERTISE SECTION
   =========================================== */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2xl);
}

.expertise-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: all var(--duration-normal) var(--ease-out);
}

.expertise-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.expertise-card__image {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  position: relative;
}

.expertise-card__image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(17,17,17,0.3), transparent 50%);
  pointer-events: none;
}

.expertise-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.expertise-card:hover .expertise-card__image img {
  transform: scale(1.06);
}

.expertise-card__body {
  padding: var(--space-xl) var(--space-xl) var(--space-2xl);
}

.expertise-card__overline {
  font-size: var(--text-overline);
  font-weight: 600;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.expertise-card__title {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-md);
  line-height: var(--leading-snug);
}

.expertise-card__text {
  font-size: var(--text-small);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-lg);
}

.expertise-card__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.expertise-card__list-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: var(--text-small);
  color: var(--color-text-secondary);
  line-height: var(--leading-normal);
}

.expertise-card__list-item::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: var(--radius-full);
  flex-shrink: 0;
  margin-top: 8px;
}

@media (max-width: 1024px) {
  .expertise-grid {
    grid-template-columns: 1fr;
    max-width: 640px;
    margin: 0 auto;
  }
}


/* ===========================================
   MOBILE REFINEMENTS
   =========================================== */
@media (max-width: 640px) {
  .accordion__header {
    gap: var(--space-md);
  }

  .accordion__phase {
    font-size: var(--text-h4);
    min-width: 2.5ch;
  }

  .accordion__title {
    font-size: var(--text-h4);
  }

  .accordion__icon {
    width: 34px;
    height: 34px;
  }

  .accordion__icon::before {
    width: 12px;
  }

  .accordion__icon::after {
    height: 12px;
  }

  .accordion__content-inner {
    padding-left: calc(2.5ch + var(--space-md));
  }

  .accordion__meta {
    flex-direction: column;
    gap: var(--space-sm);
  }
}