/* ============================================================
   MULTI-PAGE EXTENSIONS
   Breadcrumbs, inner page heroes, service details, team avatars
   ============================================================ */

/* --- MULTI-PAGE NAV (overrides for PHP site) --- */
.main-nav {
  display: flex;
}
.nav-link {
  padding: 0.5rem 0.75rem;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: color var(--transition-interactive);
}
.nav-link:hover {
  color: var(--color-primary);
}
.nav-link.active {
  color: var(--color-text);
  font-weight: 600;
}
.nav-cta {
  background: var(--color-primary);
  color: #fff !important;
  padding: 0.45rem 1.1rem;
  border-radius: var(--radius-full);
}
.nav-cta:hover {
  background: var(--color-primary-hover);
}

/* Mobile toggle */
.mobile-toggle {
  display: none;
  width: 44px;
  height: 44px;
  position: relative;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.3s ease;
  position: absolute;
}
.hamburger {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.hamburger::before {
  content: '';
  top: -7px;
  left: 0;
}
.hamburger::after {
  content: '';
  top: 7px;
  left: 0;
}
.mobile-toggle.open .hamburger {
  background: transparent;
}
.mobile-toggle.open .hamburger::before {
  top: 0;
  transform: rotate(45deg);
}
.mobile-toggle.open .hamburger::after {
  top: 0;
  transform: rotate(-45deg);
}

/* Tablet: shrink nav font and CTA to fit */
@media (max-width: 1024px) and (min-width: 881px) {
  .nav-link {
    padding: 0.4rem 0.5rem;
    font-size: 0.8rem;
  }
  .nav-cta {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    white-space: nowrap;
  }
}

/* Mobile + small tablet: hamburger nav */
@media (max-width: 880px) {
  .main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100vh;
    min-height: 100vh;
    background: #ffffff;
    padding: 5rem var(--space-6) var(--space-6);
    z-index: 9999;
    flex-direction: column;
    visibility: hidden;
    opacity: 0;
    transform: translateX(100%);
    transition:
      transform 0.3s ease,
      opacity 0.3s ease,
      visibility 0s 0.3s;
    overflow-y: auto;
  }
  .main-nav.open {
    visibility: visible;
    opacity: 1;
    transform: translateX(0);
    transition:
      transform 0.3s ease,
      opacity 0.3s ease,
      visibility 0s 0s;
  }
  .nav-list {
    flex-direction: column;
    gap: 0;
  }
  .nav-link {
    display: block;
    padding: var(--space-4) 0;
    font-size: var(--text-lg);
    border-bottom: 1px solid var(--color-divider);
    border-radius: 0;
  }
  .nav-cta {
    display: block;
    text-align: center;
    margin-top: var(--space-4);
    border-radius: var(--radius-md);
    border-bottom: none;
    padding: var(--space-3) var(--space-4);
  }
  .mobile-toggle {
    display: flex;
    z-index: 10000;
    position: relative;
  }
  .header-logo img {
    height: 28px;
  }
  .site-header {
    z-index: 9998;
  }
}

/* --- BREADCRUMB --- */
.breadcrumb {
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-divider);
  background: var(--color-surface);
}
.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  list-style: none;
}
.breadcrumb-list a {
  color: var(--color-text-muted);
  text-decoration: none;
}
.breadcrumb-list a:hover {
  color: var(--color-primary);
}
.breadcrumb-sep {
  color: var(--color-border);
}

/* --- INNER PAGE HERO --- */
.page-hero {
  padding: clamp(var(--space-12), 6vw, var(--space-20)) 0
    clamp(var(--space-8), 4vw, var(--space-12));
  background: var(--color-surface-2);
  text-align: center;
}
.page-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-2xl);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-3);
}
.page-hero p {
  max-width: 600px;
  margin: 0 auto;
  color: var(--color-text-muted);
  font-size: var(--text-base);
}

/* --- SERVICE DETAIL PAGE --- */
.service-detail {
  padding: clamp(var(--space-10), 5vw, var(--space-16)) 0;
}
.service-detail-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-12);
}
.service-detail h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-xl);
  margin-bottom: var(--space-4);
}
.service-detail p {
  margin-bottom: var(--space-4);
  line-height: 1.75;
  color: var(--color-text-muted);
}
.service-detail ul {
  margin-bottom: var(--space-4);
  list-style: none;
}
.service-detail li {
  padding: var(--space-2) 0 var(--space-2) var(--space-6);
  position: relative;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}
.service-detail li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 8px;
  background: var(--color-primary);
  border-radius: 50%;
}

/* Sidebar */
.service-sidebar {
  position: sticky;
  top: 6rem;
}
.sidebar-card {
  background: var(--color-surface-2);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-bottom: var(--space-4);
}
.sidebar-card h4 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-sm);
  margin-bottom: var(--space-3);
  color: var(--color-text);
}
.sidebar-card ul {
  list-style: none;
}
.sidebar-card ul li {
  padding: var(--space-1) 0;
}
.sidebar-card ul li a {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  text-decoration: none;
}
.sidebar-card ul li a:hover {
  color: var(--color-primary);
}

/* Tech tags */
.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: var(--space-4) 0;
}
.tech-tag {
  padding: var(--space-1) var(--space-3);
  background: var(--color-navy);
  color: #fff;
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-sm);
}

/* --- CASE STUDY (Product Detail) --- */
.case-study-header {
  padding: var(--space-6) 0;
  border-bottom: 1px solid var(--color-divider);
}
.case-meta {
  display: flex;
  gap: var(--space-6);
  margin-top: var(--space-3);
  flex-wrap: wrap;
}
.case-meta-item {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}
.case-meta-item strong {
  color: var(--color-text);
}

.case-study-content {
  padding: clamp(var(--space-8), 4vw, var(--space-12)) 0;
}
.case-study-content h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}
.case-study-content h2:first-child {
  margin-top: 0;
}
.case-study-content p {
  margin-bottom: var(--space-3);
  color: var(--color-text-muted);
  line-height: 1.75;
}

.feature-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  margin: var(--space-6) 0;
}
.feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--color-surface-2);
  border-radius: var(--radius-sm);
}
.feature-item .check {
  color: var(--color-primary);
  font-weight: 700;
  flex-shrink: 0;
}
.feature-item span {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* --- TEAM AVATARS (initials) --- */
.team-avatar {
  width: 100%;
  aspect-ratio: 3 / 4;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
}
.team-avatar .initials {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.5rem, 5vw, 4rem);
  color: rgba(255, 255, 255, 0.9);
  letter-spacing: 0.02em;
}
.team-role {
  font-size: var(--text-xs);
  color: var(--color-primary);
  font-weight: 500;
  line-height: 1.4;
  margin-bottom: var(--space-2);
}
.team-bio {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* --- ABOUT PAGE --- */
.about-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.value-card {
  text-align: center;
}
.value-card .value-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-3);
}
.value-card h4 {
  font-family: var(--font-body);
  font-weight: 700;
  margin-bottom: var(--space-2);
}
.value-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin: 0 auto;
}

.timeline {
  position: relative;
  padding-left: var(--space-8);
}
.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-divider);
}
.timeline-item {
  position: relative;
  margin-bottom: var(--space-6);
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-8) + 4px);
  top: 6px;
  width: 10px;
  height: 10px;
  background: var(--color-primary);
  border-radius: 50%;
}
.timeline-year {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-primary);
  font-size: var(--text-xs);
}
.timeline-item h4 {
  font-size: var(--text-sm);
  font-weight: 700;
  margin-top: var(--space-1);
}
.timeline-item p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* --- FOOTER GRID (multi-column) --- */
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-8);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: var(--space-6);
}
.footer-col h4 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #cbd5e1;
  margin-bottom: var(--space-3);
}
.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.footer-col ul li a {
  font-size: var(--text-sm);
  color: #94a3b8;
  text-decoration: none;
  transition: color var(--transition-interactive);
}
.footer-col ul li a:hover {
  color: var(--color-accent);
}
.footer-tagline {
  font-size: var(--text-sm);
  color: #94a3b8;
  margin-bottom: var(--space-2);
}
.footer-desc {
  font-size: var(--text-xs);
  color: #64748b;
  max-width: 280px;
  line-height: 1.6;
}
.footer-brand .logo-img {
  height: 32px;
  width: auto;
  opacity: 0.95;
  margin-bottom: var(--space-3);
}
.footer-powered {
  color: #64748b;
}

/* --- CTA BAND (reusable) --- */
.cta-section {
  background: var(--color-navy);
  padding: clamp(var(--space-10), 5vw, var(--space-16)) 0;
  text-align: center;
}
.cta-section h2 {
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
}
.cta-section p {
  color: #94a3b8;
  margin: 0 auto var(--space-6);
  max-width: 500px;
}

/* --- 404 PAGE --- */
.error-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  text-align: center;
  padding: var(--space-16) 0;
}
.error-code {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(4rem, 10vw, 8rem);
  color: var(--color-primary);
  line-height: 1;
}

/* --- RESPONSIVE OVERRIDES --- */
@media (max-width: 1024px) {
  .service-detail-grid {
    grid-template-columns: 1fr;
  }
  .service-sidebar {
    position: static;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-values {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  .footer-bottom {
    flex-direction: column;
  }
  .feature-list {
    grid-template-columns: 1fr;
  }
  .about-values {
    grid-template-columns: 1fr;
  }
  .case-meta {
    flex-direction: column;
    gap: var(--space-2);
  }
  .persona-grid {
    grid-template-columns: 1fr;
  }
}

/* --- WHO WE HELP — PERSONA CARDS --- */
.persona-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-10);
}
.persona-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-2xl);
  padding: var(--space-8) var(--space-6);
  text-align: center;
  transition:
    box-shadow 0.3s ease,
    transform 0.3s ease,
    border-color 0.3s ease;
}
.persona-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
  transform: translateY(-3px);
}
.persona-card .persona-icon {
  width: 48px;
  height: 48px;
  color: var(--color-primary);
  margin: 0 auto var(--space-4);
}
.persona-card h3 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-base);
  color: var(--color-text);
  margin-bottom: var(--space-3);
}
.persona-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
  text-align: left;
}
@media (max-width: 1024px) {
  .persona-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 767px) {
  .persona-grid {
    grid-template-columns: 1fr;
  }
}