/* ── Services section ────────────────────────────────────── */
.services {
  position: relative;
}

/* Tall outer scroll container (JS measures this) */
.services__scroll-container {
  position: relative;
  /* Height set by JS: 100vh * numServices + 100vh padding */
}

/* Sticky panel wrapper */
.services__sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border-subtle);
}

.services__sticky::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 0% 50%, rgba(0,87,217,0.04) 0%, transparent 60%);
  pointer-events: none;
}

.services__inner {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--content-padding-x);
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-12);
  align-items: start;
}

/* ── Left: section header + tab list ────────────────────── */
.services__sidebar {
  position: relative;
}

.services__section-header {
  margin-bottom: var(--space-8);
}

.services__tabs {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.services__tab {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  border: 1px solid transparent;
  background: none;
  text-align: left;
  width: 100%;
}

.services__tab:hover {
  background: rgba(0,0,0,0.04);
  border-color: var(--color-border-subtle);
}

.services__tab.is-active {
  background: rgba(0,87,217,0.08);
  border-color: var(--color-border);
}

.services__tab-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: rgba(0,0,0,0.04);
  color: var(--color-text-muted);
  font-size: 18px;
  transition: background var(--transition-base), color var(--transition-base);
}

.services__tab.is-active .services__tab-icon {
  background: rgba(0,87,217,0.15);
  color: var(--color-accent);
}

.services__tab-label {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-muted);
  transition: color var(--transition-base);
  line-height: 1.2;
}

.services__tab.is-active .services__tab-label {
  color: var(--color-text);
  font-weight: var(--weight-semibold);
}

/* Progress indicator */
.services__progress {
  position: absolute;
  left: -16px;
  top: 0;
  width: 2px;
  background: var(--color-border-subtle);
  border-radius: var(--radius-full);
  height: 100%;
  overflow: hidden;
}

.services__progress-fill {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  background: var(--color-accent);
  border-radius: var(--radius-full);
  transition: height 0.3s ease;
}

/* ── Right: content panels ───────────────────────────────── */
.services__panels {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
}

.services__panel {
  position: absolute;
  width: 100%;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
  pointer-events: none;
}

.services__panel.is-active {
  opacity: 1;
  transform: none;
  pointer-events: all;
  position: relative;
}

.services__panel-icon {
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,87,217,0.1);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  color: var(--color-accent);
  font-size: 36px;
  margin-bottom: var(--space-6);
  box-shadow: 0 0 24px var(--color-accent-glow);
}

.services__panel-title {
  font-family: var(--font-heading);
  font-size: clamp(var(--text-2xl), 3vw, var(--text-4xl));
  font-weight: var(--weight-extrabold);
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.services__panel-tagline {
  font-size: var(--text-lg);
  color: var(--color-accent);
  font-weight: var(--weight-medium);
  margin-bottom: var(--space-6);
}

.services__panel-description {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-8);
  max-width: 56ch;
}

.services__panel-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.services__feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: border-color var(--transition-fast);
}

.services__feature:hover {
  border-color: var(--color-border);
}

.services__feature-dot {
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  margin-top: 0.45em;
}

/* ── Mobile accordion ────────────────────────────────────── */
.services__accordion {
  display: none;
  padding-block: var(--section-padding-y);
}

.services__accordion .container {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.accordion-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  font-weight: var(--weight-semibold);
  color: var(--color-text);
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.accordion-trigger:hover {
  background: rgba(0,0,0,0.03);
}

.accordion-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,87,217,0.1);
  border-radius: var(--radius-md);
  color: var(--color-accent);
  font-size: 18px;
}

.accordion-chevron {
  margin-left: auto;
  transition: transform var(--transition-base);
  color: var(--color-text-muted);
}

.accordion-item.is-open .accordion-chevron {
  transform: rotate(180deg);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.accordion-item.is-open .accordion-body {
  max-height: 600px;
}

.accordion-content {
  padding: 0 var(--space-6) var(--space-6);
}

@media (max-width: 768px) {
  .services__scroll-container { display: none; }
  .services__accordion { display: block; }
}

@media (max-width: 1024px) and (min-width: 769px) {
  .services__inner {
    grid-template-columns: 220px 1fr;
    gap: var(--space-8);
  }
}