/* ==========================================================================
   VIETANA GROUP — COMPONENT STYLES
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. NAVIGATION HEADER
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  transition: all var(--transition-base);
}

.site-header.scrolled {
  background-color: rgba(255, 255, 255, 0.96);
  box-shadow: 0 4px 20px rgba(10, 17, 40, 0.04);
  border-bottom-color: var(--color-border);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  transition: height var(--transition-base);
}

.site-header.scrolled .header-container {
  height: 70px;
}

/* Brand Logo in Header */
.brand-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-logo-img {
  height: 36px;
  width: auto;
  object-fit: contain;
  transition: transform var(--transition-fast);
}

@media (min-width: 768px) {
  .brand-logo-img {
    height: 40px;
  }
}

.brand-link:hover .brand-logo-img {
  transform: translateY(-1px);
}

.brand-text-block {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--color-navy-primary);
  line-height: 1.1;
  text-transform: uppercase;
}

@media (min-width: 768px) {
  .brand-name {
    font-size: 1.3rem;
  }
}

.brand-tagline-sub {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-blue-accent);
  line-height: 1.2;
}

/* Desktop Nav Links */
.desktop-nav {
  display: none;
  align-items: center;
  gap: 2.25rem;
}

@media (min-width: 860px) {
  .desktop-nav {
    display: flex;
  }
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-navy-medium);
  letter-spacing: 0.01em;
  position: relative;
  padding: 0.5rem 0;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-blue-accent);
  transition: width var(--transition-base);
  border-radius: 2px;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-blue-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.btn.header-cta-btn {
  display: none;
}

@media (min-width: 640px) {
  .btn.header-cta-btn {
    display: inline-flex;
  }
}

/* Primary and Secondary Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  border: 1px solid transparent;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-navy-primary);
  color: #FFFFFF;
  border-color: var(--color-navy-primary);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--color-blue-primary);
  border-color: var(--color-blue-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px var(--color-blue-glow);
  color: #FFFFFF;
}

.btn-secondary {
  background-color: #FFFFFF;
  color: var(--color-navy-primary);
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--color-bg-subtle);
  border-color: var(--color-navy-primary);
  color: var(--color-navy-primary);
  transform: translateY(-2px);
}

.btn-blue {
  background-color: var(--color-blue-accent);
  color: #FFFFFF;
  border-color: var(--color-blue-accent);
}

.btn-blue:hover {
  background-color: var(--color-blue-primary);
  border-color: var(--color-blue-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px var(--color-blue-glow);
}

.btn-sm {
  padding: 0.5rem 1.15rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 0.95rem 2rem;
  font-size: 1rem;
}

/* Mobile Menu Toggle Button */
.mobile-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-navy-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

@media (min-width: 860px) {
  .mobile-toggle {
    display: none;
  }
}

.mobile-toggle:hover {
  background-color: var(--color-bg-subtle);
  border-color: var(--color-navy-primary);
}

/* Mobile Navigation Drawer */
.mobile-drawer {
  position: fixed;
  inset: 0;
  z-index: 99;
  background-color: rgba(10, 17, 40, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.mobile-drawer.open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-drawer-content {
  position: absolute;
  top: 80px;
  left: 0;
  right: 0;
  background-color: #FFFFFF;
  border-bottom: 1px solid var(--color-border);
  padding: 2rem 1.5rem 2.5rem;
  transform: translateY(-20px);
  transition: transform var(--transition-base);
  box-shadow: var(--shadow-xl);
}

.site-header.scrolled + .mobile-drawer .mobile-drawer-content {
  top: 70px;
}

.mobile-drawer.open .mobile-drawer-content {
  transform: translateY(0);
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.mobile-nav-link {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-navy-primary);
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border-subtle);
}

.mobile-nav-link:hover {
  color: var(--color-blue-primary);
  padding-left: 0.5rem;
}

/* --------------------------------------------------------------------------
   2. HERO SECTION
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  padding-top: 10rem;
  padding-bottom: 6rem;
  background: radial-gradient(circle at 50% -20%, rgba(37, 99, 235, 0.05) 0%, transparent 65%);
  overflow: hidden;
  border-bottom: 1px solid var(--color-border-subtle);
}

@media (min-width: 768px) {
  .hero-section {
    padding-top: 12.5rem;
    padding-bottom: 8.5rem;
  }
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 880px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 2;
}

/* Hero Logo Presentation */
.hero-logo-wrapper {
  margin-bottom: 2.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem 2rem;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.04);
}

.hero-logo-img {
  height: 64px;
  width: auto;
  object-fit: contain;
}

@media (min-width: 768px) {
  .hero-logo-img {
    height: 80px;
  }
}

/* Hero Headings */
.hero-title {
  font-size: clamp(2.6rem, 6.5vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-navy-primary);
  line-height: 1.05;
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.hero-subheading {
  font-size: clamp(0.9rem, 2vw, 1.25rem);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-blue-primary);
  margin-bottom: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.hero-supporting-text {
  font-size: clamp(1.05rem, 1.8vw, 1.35rem);
  line-height: 1.65;
  color: var(--color-slate-body);
  max-width: 720px;
  margin-bottom: 2.75rem;
  font-weight: 400;
}

/* Hero Buttons */
.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
  max-width: 440px;
}

@media (min-width: 520px) {
  .hero-actions {
    flex-direction: row;
    width: auto;
    max-width: none;
    gap: 1.25rem;
  }
}

/* --------------------------------------------------------------------------
   3. ABOUT SECTION
   -------------------------------------------------------------------------- */
.about-card {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 3rem 2rem;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

@media (min-width: 768px) {
  .about-card {
    padding: 4.5rem 4rem;
  }
}

.about-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.9rem;
  background-color: var(--color-blue-light);
  color: var(--color-blue-primary);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.about-text {
  font-size: clamp(1.15rem, 2.2vw, 1.55rem);
  line-height: 1.7;
  color: var(--color-navy-deep);
  font-weight: 400;
  letter-spacing: -0.01em;
}

.about-text strong {
  color: var(--color-navy-primary);
  font-weight: 700;
}

.about-pillars-bar {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--color-border-subtle);
}

@media (min-width: 768px) {
  .about-pillars-bar {
    grid-template-columns: repeat(4, 1fr);
  }
}

.about-pillar-item {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.pillar-name {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-navy-primary);
}

.pillar-desc-mini {
  font-size: 0.82rem;
  color: var(--color-slate-muted);
  line-height: 1.4;
}

/* --------------------------------------------------------------------------
   4. OUR BUSINESSES (4 PILLAR CARDS)
   -------------------------------------------------------------------------- */
.businesses-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  margin-top: 3.5rem;
}

@media (min-width: 768px) {
  .businesses-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
}

.business-card {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2.25rem;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-base);
  position: relative;
  box-shadow: var(--shadow-sm);
}

.business-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background-color: transparent;
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: var(--radius-lg);
  transition: background-color var(--transition-base);
}

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

.business-card:hover::before {
  background-color: var(--color-blue-accent);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.75rem;
}

.card-icon-box {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background-color: var(--color-blue-light);
  color: var(--color-blue-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.business-card:hover .card-icon-box {
  background-color: var(--color-navy-primary);
  color: #FFFFFF;
}

.card-number {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-slate-light);
  font-variant-numeric: tabular-nums;
}

.card-title {
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-navy-primary);
  margin-bottom: 0.85rem;
  text-transform: uppercase;
}

.card-text {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-slate-body);
  margin-bottom: 2rem;
  flex-grow: 1;
}

.card-footer-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: auto;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-border-subtle);
}

.card-tag {
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--color-slate-muted);
  background-color: var(--color-bg-subtle);
  border: 1px solid var(--color-border-subtle);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  letter-spacing: 0.02em;
}

/* --------------------------------------------------------------------------
   5. SIMPLE STATEMENT SECTION
   -------------------------------------------------------------------------- */
.statement-section {
  background-color: var(--color-navy-primary);
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
  padding-top: 6rem;
  padding-bottom: 6rem;
}

@media (min-width: 768px) {
  .statement-section {
    padding-top: 8rem;
    padding-bottom: 8rem;
  }
}

.statement-pattern {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.statement-content {
  text-align: center;
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 2;
}

.statement-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #60A5FA;
  margin-bottom: 1.5rem;
}

.statement-headline {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: #FFFFFF;
  margin-bottom: 1.75rem;
}

.statement-subtext {
  font-size: clamp(1.1rem, 1.8vw, 1.3rem);
  line-height: 1.7;
  color: #CBD5E1;
  font-weight: 300;
}

/* --------------------------------------------------------------------------
   6. CONTACT SECTION
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-top: 3.5rem;
}

@media (min-width: 860px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-card-item {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.6rem;
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
}

.contact-card-item:hover {
  border-color: var(--color-blue-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.contact-icon-wrapper {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  background-color: var(--color-blue-light);
  color: var(--color-blue-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.contact-card-item:hover .contact-icon-wrapper {
  background-color: var(--color-blue-accent);
  color: #FFFFFF;
}

.contact-details {
  flex-grow: 1;
}

.contact-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-slate-muted);
  margin-bottom: 0.25rem;
}

.contact-value {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-navy-primary);
  line-height: 1.45;
}

.contact-action-hint {
  font-size: 0.78rem;
  color: var(--color-blue-primary);
  font-weight: 600;
  margin-top: 0.25rem;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

/* Contact CTA Panel */
.contact-cta-panel {
  background: linear-gradient(135deg, #FFFFFF 0%, var(--color-bg-subtle) 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 2.75rem 2.25rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-md);
  position: relative;
}

.cta-panel-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-navy-primary);
  margin-bottom: 0.85rem;
}

.cta-panel-text {
  font-size: 1rem;
  color: var(--color-slate-body);
  line-height: 1.65;
  margin-bottom: 2rem;
}

.quick-connect-actions {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

@media (min-width: 480px) {
  .quick-connect-actions {
    flex-direction: row;
  }
}

/* --------------------------------------------------------------------------
   7. FOOTER
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: #060B1A;
  color: #94A3B8;
  padding-top: 5rem;
  padding-bottom: 3.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

@media (min-width: 768px) {
  .footer-grid {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }
}

.footer-brand {
  max-width: 440px;
}

.footer-logo-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: #FFFFFF;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
}

.footer-tagline {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #60A5FA;
  margin-bottom: 1.25rem;
}

.footer-desc {
  font-size: 0.92rem;
  line-height: 1.65;
  color: #94A3B8;
}

.footer-nav {
  display: flex;
  gap: 3rem;
}

.footer-nav-col {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-nav-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #FFFFFF;
  margin-bottom: 0.5rem;
}

.footer-nav-link {
  font-size: 0.9rem;
  color: #94A3B8;
  transition: color var(--transition-fast);
}

.footer-nav-link:hover {
  color: #FFFFFF;
}

.footer-bottom {
  padding-top: 2.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  font-size: 0.85rem;
  color: #64748B;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.legal-entity-name {
  font-weight: 500;
  color: #94A3B8;
}

/* --------------------------------------------------------------------------
   8. TOAST NOTIFICATION
   -------------------------------------------------------------------------- */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}

.toast {
  background-color: var(--color-navy-primary);
  color: #FFFFFF;
  padding: 0.85rem 1.4rem;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  font-weight: 600;
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transform: translateY(20px);
  opacity: 0;
  transition: all var(--transition-base);
  pointer-events: auto;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* --------------------------------------------------------------------------
   9. ACCESSIBILITY & ANIMATION
   -------------------------------------------------------------------------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}