/* ============================================================
   SERVICES.CSS — PCU Corporation Services Page
   Specific styles for services-page.html (ES & EN)
   ============================================================ */

/* ── Page-level overflow guard ─────────────────────────────── */
html,
body {
  overflow-x: hidden;
}

main {
  overflow-x: hidden;
}

/* ── 1. Hero Banner ────────────────────────────────────────── */
.services-hero {
  position: relative;
  height: 380px;
  min-height: 300px;
  background-size: cover;
  background-position: center 30%;
  background-repeat: no-repeat;
  display: flex;
  align-items: flex-end;
  padding-bottom: 50px;
  overflow: hidden;
  margin-top: 0;
}

.services-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(4, 28, 73, 0.35) 0%,
    rgba(4, 28, 73, 0.05) 50%,
    rgba(4, 28, 73, 0) 100%
  );
  z-index: 1;
}

.services-hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
}

/* ── 2. Interactive Tabs Section ───────────────────────────── */
.tabs-section {
  padding: 80px 0 100px 0;
  background-color: var(--color-white);
}

.tabs-container {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 80px;
}

/* Left Column: Vertical Navigation */
.tabs-nav-wrapper {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.tabs-nav {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--color-border-grey);
}

.tab-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  border-bottom: 1px solid var(--color-border-grey);
  font-family: var(--font-family);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  color: var(--color-primary);
  text-align: left;
  letter-spacing: 0.05em;
  transition: all var(--transition-base);
  position: relative;
  text-decoration: none;
}

.tab-btn::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 0;
  height: 2px;
  background-color: var(--color-accent-blue);
  transition: width var(--transition-base);
}

.tab-btn:hover {
  color: var(--color-accent-blue);
}

.tab-btn.active {
  color: var(--color-primary-mid);
}

.tab-btn.active::after {
  width: 100%;
}

.tab-btn-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--color-border-grey);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  transition: all var(--transition-base);
}

.tab-btn.active .tab-btn-icon {
  background-color: var(--color-primary-mid);
  border-color: var(--color-primary-mid);
  color: var(--color-white);
  transform: rotate(90deg);
}

/* Brochure Download Link */
.brochure-download-link {
  display: block;
  width: fit-content;
  transition: transform var(--transition-base), opacity var(--transition-base);
  margin-top: 20px;
}

.brochure-download-link:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}

.brochure-download-link img {
  display: block;
  max-width: 280px;
  height: auto;
}

/* Text label — hidden on desktop, shown as button text on mobile */
.brochure-label {
  display: none;
  font-size: 14px;
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-white);
}

/* Right Column: Tab Content */
.tab-content-panel {
  display: none;
  grid-template-columns: 1fr 340px;
  gap: 50px;
  animation: fadeIn var(--transition-slow);
}

.tab-content-panel.active {
  display: grid;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

.tab-text-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.capsule-tag {
  background-color: transparent;
  color: var(--color-primary-mid);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-bold);
  padding: 6px 18px;
  border: 1.5px solid var(--color-primary-mid);
  border-radius: var(--border-radius-pill);
  margin-bottom: 25px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  display: inline-block;
}

.tab-title-large {
  font-size: var(--text-5xl);
  font-weight: var(--font-weight-regular);
  color: var(--color-primary);
  margin-bottom: 30px;
  line-height: 1.15;
}

.tab-title-large strong {
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-mid);
}

.tab-description {
  color: var(--color-grey-text);
  font-size: var(--text-base);
  line-height: 1.5;
}

/* Sidebar Info Card */
.sidebar-info-card {
  background-color: #D1EBFC;
  border-radius: var(--border-radius-lg);
  padding: 40px 30px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  height: 100%;
}

.card-tag {
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 20px;
  border: 1px solid rgba(4, 28, 73, 0.3);
  padding: 5px 14px;
  border-radius: var(--border-radius-pill);
  display: inline-block;
}

.card-title {
  font-size: var(--text-lg);
  line-height: 1.3;
  color: var(--color-primary);
  margin-bottom: 20px;
  font-weight: var(--font-weight-medium);
}

.card-author {
  font-size: var(--text-sm);
  color: var(--color-grey-text);
  margin-bottom: 40px;
}

.card-btn {
  width: 100%;
  text-align: center;
  background-color: var(--color-primary);
  color: var(--color-white);
  border: none;
  padding: 16px;
  border-radius: var(--border-radius-pill);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all var(--transition-base);
  display: block;
}

.card-btn:hover {
  background-color: var(--color-primary-mid);
  color: var(--color-white);
}

/* ── 3. Blue Grid Section (CAPEX/OPEX) ─────────────────────── */
.blue-grid-section {
  position: relative;
  background-color: var(--color-primary);
  background-size: cover;
  background-position: center;
  padding: 120px 0;
  color: var(--color-white);
  overflow: hidden;
}

/* Clean background style using user's asset */
.blue-grid-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: transparent;
  z-index: 1;
}

.blue-grid-container {
  position: relative;
  z-index: 2;
}

.services-blue-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 60px 40px;
  border: none;
}

.grid-card {
  padding: 10px 0 10px 30px;
  border-left: 1px solid rgba(255, 255, 255, 0.35);
  border-right: none;
  border-bottom: none;
  border-top: none;
  background-color: transparent;
  transition: opacity var(--transition-base);
}

.grid-card:hover {
  opacity: 0.85;
}

.grid-card-title {
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.grid-card-desc {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.4;
  letter-spacing: -0.03em;
}

/* ── 4. Split Text Section ─────────────────────────────────── */
.split-text-section {
  padding: 120px 0;
  background-color: var(--color-white);
}

.split-text-container {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 80px;
  align-items: start;
}

.split-title {
  font-size: var(--text-5xl);
  font-weight: var(--font-weight-medium);
  line-height: 1.1;
  color: var(--color-primary);
  letter-spacing: -0.04em;
  text-transform: uppercase;
}

.split-content {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.split-paragraph {
  font-size: var(--text-base);
  color: var(--color-grey-text);
  line-height: 1.45;
}

.split-divider {
  height: 1px;
  background-color: var(--color-border-grey);
  margin-top: 100px;
  width: 100%;
}

/* ── 5. Expertise Section ──────────────────────────────────── */
.expertise-section {
  padding: 40px 0 120px 0;
  background-color: var(--color-white);
}

.expertise-header {
  margin-bottom: 60px;
}

.expertise-container {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 70px;
  align-items: start;
}

/* Left side: Dynamic Stacking Panel Images */
.expertise-gallery-wrapper {
  display: flex;
  flex-direction: column;
  gap: 20px;
  width: 100%;
}

.expertise-img-card {
  width: 100%;
  height: 95px; /* Collapsed state height */
  border-radius: 14px;
  overflow: hidden;
  transition: height 0.45s cubic-bezier(0.4, 0, 0.2, 1), transform 0.3s ease;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
  cursor: pointer;
}

.expertise-img-card.active {
  height: 440px; /* Expanded state height matching Figma images */
  cursor: default;
}

.expertise-img-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.45s ease;
  display: block;
}

/* Right side: Accordion list */
.expertise-accordion {
  display: flex;
  flex-direction: column;
}

.accordion-item {
  border-top: 1px solid rgba(1, 19, 52, 0.2);
  padding: 36px 0;
  cursor: pointer;
  transition: all 0.3s ease;
}

.accordion-item:last-child {
  border-bottom: 1px solid rgba(1, 19, 52, 0.2);
}

.accordion-item-inner {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 30px;
  align-items: start;
}

.accordion-left-col {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.accordion-number {
  font-family: var(--font-heading);
  font-size: 20px;
  color: var(--color-primary);
  font-weight: 400;
  letter-spacing: -0.02em;
}

.accordion-title {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 500;
  color: var(--color-primary);
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin: 0;
  transition: color 0.3s ease;
}

.accordion-item.active .accordion-title {
  color: var(--color-primary);
}

.accordion-right-col {
  display: none;
  flex-direction: column;
  gap: 24px;
  animation: fadeIn 0.4s ease forwards;
}

.accordion-item.active .accordion-right-col {
  display: flex;
}

.accordion-desc {
  font-family: var(--font-heading);
  font-size: 16px;
  color: var(--color-primary);
  line-height: 1.5;
  letter-spacing: -0.02em;
  margin: 0;
}

.accordion-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 500;
  color: #3B82F6;
  text-decoration: underline;
  text-underline-offset: 4px;
  letter-spacing: -0.01em;
  width: fit-content;
  transition: color 0.2s ease, transform 0.2s ease;
}

.accordion-link:hover {
  color: #1d4ed8;
  transform: translateX(3px);
}

.accordion-arrow {
  font-size: 16px;
  text-decoration: none;
  display: inline-block;
}

/* ── 6. Responsive Styles ──────────────────────────────────── */

/* ── 1180px: Tablet landscape ─────────────────────────────── */
@media (max-width: 1180px) {
  .tabs-section {
    padding: 60px 0 80px;
  }

  .tabs-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .tabs-nav-wrapper {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
  }

  /* Sub-services navigation: vertical stacked list starting at 1180px */
  .tabs-nav {
    flex-direction: column;
    overflow-x: visible;
    border-top: 1px solid var(--color-border-grey);
    border-bottom: none;
    width: 100%;
    gap: 0;
  }

  .tab-btn {
    font-size: 13px;
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 18px 20px;
    white-space: normal;
    flex-shrink: unset;
    border-bottom: 1px solid var(--color-border-grey);
    background-color: var(--color-white);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    width: 100%;
    transition: background-color var(--transition-fast), color var(--transition-fast);
  }

  .tab-btn.active {
    background-color: var(--color-bg-light);
    color: var(--color-primary-mid);
  }

  .tab-btn::after {
    display: none;
  }

  .tab-btn-icon {
    display: flex;
    width: 26px;
    height: 26px;
    flex-shrink: 0;
    border: 1px solid var(--color-border-grey);
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: var(--color-primary);
    background: transparent;
  }

  .tab-btn.active .tab-btn-icon {
    background-color: var(--color-primary-mid);
    border-color: var(--color-primary-mid);
    color: var(--color-white);
    transform: none;
  }

  .brochure-download-link {
    margin-top: 24px;
  }

  .brochure-download-link img {
    max-width: 240px;
  }

  .tab-content-panel {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .sidebar-info-card {
    height: auto;
  }

  .services-blue-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px 30px;
  }

  .split-text-section {
    padding: 80px 0;
  }

  .split-text-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .split-title {
    font-size: var(--text-3xl);
  }

  .expertise-section {
    padding: 20px 0 80px;
  }

  .expertise-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .expertise-gallery-wrapper {
    position: relative;
    top: 0;
    flex-direction: row;
  }

  .expertise-img-card {
    height: 220px;
    flex: 1;
  }

  .expertise-img-card.active {
    height: 220px;
    flex: 1.6;
  }
}

/* ── 768px: Tablet portrait / large phone ─────────────────── */
@media (max-width: 768px) {
  .tabs-section {
    padding: 0 0 60px;
  }

  /* Hero: quitar gradiente blanco inferior en móvil */
  .services-hero::before {
    background: linear-gradient(
      180deg,
      rgba(4, 28, 73, 0.35) 0%,
      rgba(4, 28, 73, 0.05) 70%,
      rgba(4, 28, 73, 0) 100%
    );
  }

  /* Brochure: mantener imagen, solo ajustar tamaño en móvil */
  .brochure-download-link {
    display: block;
    margin-top: 20px;
    width: fit-content;
    background: none;
    padding: 0;
    border-radius: 0;
    box-shadow: none;
  }

  .brochure-download-link:hover {
    transform: translateY(-2px);
    opacity: 0.9;
    background: none;
  }

  .brochure-download-link img {
    display: block;
    max-width: 220px;
    height: auto;
    filter: none;
  }

  .brochure-label {
    display: none;
  }

  /* Content panels apilados */
  .tab-content-panel {
    grid-template-columns: 1fr;
    gap: 24px;
    padding-top: 30px;
  }

  .tab-title-large {
    font-size: var(--text-3xl);
  }

  .tab-description {
    font-size: var(--text-sm);
  }

  .sidebar-info-card {
    height: auto;
    padding: 30px 24px;
  }

  .card-title {
    font-size: 20px;
  }

  .blue-grid-section {
    padding: 70px 0;
  }

  .services-blue-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px 20px;
  }

  .grid-card {
    padding: 8px 0 8px 20px;
  }

  .grid-card-title {
    font-size: var(--text-xl);
  }

  .split-text-section {
    padding: 60px 0;
  }

  .expertise-gallery-wrapper {
    flex-direction: column;
  }

  .expertise-img-card {
    height: 200px;
    flex: none;
  }

  .expertise-img-card.active {
    height: 300px;
    flex: none;
  }
}

/* ── 480px: Mobile ────────────────────────────────────────── */
@media (max-width: 480px) {
  .services-hero {
    height: 240px;
  }

  .tabs-section {
    padding: 0 0 40px;
  }

  .tab-btn {
    font-size: 11px;
    padding: 16px 14px;
  }

  .tab-title-large {
    font-size: 24px;
    line-height: 1.2;
  }

  .tab-description {
    font-size: 15px;
  }

  .capsule-tag {
    font-size: 11px;
    padding: 5px 14px;
  }

  .card-title {
    font-size: 17px;
  }

  .blue-grid-section {
    padding: 50px 0;
  }

  .services-blue-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .grid-card {
    padding: 6px 0 6px 18px;
  }

  .grid-card-title {
    font-size: 22px;
    margin-bottom: 12px;
  }

  .grid-card-desc {
    font-size: 14px;
  }

  .split-text-section {
    padding: 50px 0;
  }

  .split-title {
    font-size: 22px;
    letter-spacing: -0.02em;
  }

  .split-paragraph {
    font-size: 15px;
  }

  .split-divider {
    margin-top: 50px;
  }

  .expertise-section {
    padding: 10px 0 60px;
  }

  .expertise-container {
    gap: 30px;
  }

  .expertise-img-card {
    height: 180px;
  }

  .expertise-img-card.active {
    height: 250px;
  }

  .accordion-number {
    font-size: 13px;
  }

  .accordion-title {
    font-size: var(--text-md);
  }

  .accordion-content {
    padding-left: 0;
  }

  .accordion-desc {
    font-size: 14px;
  }
}