/* ==========================================================================
   VTN GROUP - COMPONENTS CSS
   ========================================================================== */

/* Header & Navbar - VTN Group Official Brand Style */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(11, 37, 69, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(59, 130, 246, 0.22);
  transition: var(--transition);
}

.site-header.is-scrolled {
  box-shadow: 0 8px 30px rgba(7, 25, 47, 0.4);
  padding: 0.2rem 0;
  background-color: rgba(7, 25, 47, 0.98);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 88px;
  max-width: 1420px;
  gap: 1.2rem;
}

.site-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: #ffffff;
  padding: 6px 14px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.25);
  flex-shrink: 0;
  transition: var(--transition);
}

.site-logo img {
  height: 48px;
  width: auto;
  object-fit: contain;
}

.logo-badge {
  background: var(--vtn-secondary);
  color: #ffffff;
  font-size: 0.65rem;
  padding: 3px 9px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 800;
}

.main-navigation {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
}

.nav-menu {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(0.7rem, 1.3vw, 1.8rem);
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: nowrap;
}

.nav-menu li {
  flex-shrink: 0;
}

.nav-menu a {
  font-weight: 600;
  font-size: clamp(0.84rem, 0.92vw, 0.95rem);
  color: #e2e8f0;
  position: relative;
  padding: 0.5rem 0;
  letter-spacing: 0.2px;
  white-space: nowrap;
  display: block;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2.5px;
  background: var(--vtn-secondary);
  transition: var(--transition);
  box-shadow: 0 0 10px var(--vtn-secondary);
}

.nav-menu a:hover,
.nav-menu .current-menu-item > a {
  color: #60a5fa;
}

.nav-menu a:hover::after,
.nav-menu .current-menu-item > a::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-shrink: 0;
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.1);
  padding: 4px;
  border-radius: 30px;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.lang-btn {
  padding: 4px 14px;
  font-size: 0.78rem;
  font-weight: 700;
  border-radius: 20px;
  color: #94a3b8;
  cursor: pointer;
  transition: var(--transition);
}

.lang-btn.active {
  background: var(--vtn-secondary);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
}

/* Mobile Hamburger Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.6rem;
  color: #ffffff;
  cursor: pointer;
}

/* Hero Section - VTN Group Royal Navy Theme */
.hero-section {
  position: relative;
  padding: 190px 0 110px 0;
  background: linear-gradient(135deg, #07192f 0%, #0b2545 60%, #13315c 100%);
  color: #ffffff;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 75% 35%, rgba(37, 99, 235, 0.22) 0%, transparent 65%),
              radial-gradient(circle at 20% 80%, rgba(212, 175, 55, 0.15) 0%, transparent 50%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 4.5rem;
}

.hero-title {
  color: #ffffff;
  font-family: var(--font-heading);
  font-size: clamp(2.6rem, 4.8vw, 4rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  letter-spacing: -0.01em;
}

.hero-title span {
  color: var(--vtn-secondary);
  position: relative;
  display: inline-block;
  font-style: italic;
  font-weight: 600;
  background: linear-gradient(135deg, #93c5fd 0%, #3b82f6 50%, #60a5fa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.18rem;
  color: #cbd5e1;
  margin-bottom: 2.5rem;
  max-width: 620px;
  line-height: 1.75;
}

.hero-ctas {
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
}

.hero-media-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 30px 60px rgba(7, 25, 47, 0.5);
  border: 1px solid rgba(59, 130, 246, 0.35);
}

.hero-media-wrapper img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.hero-media-wrapper:hover img {
  transform: scale(1.03);
}

.hero-badge-floating {
  position: absolute;
  bottom: 25px;
  left: 25px;
  background: rgba(7, 25, 47, 0.90);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(59, 130, 246, 0.35);
  padding: 18px 24px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.hero-badge-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  flex-shrink: 0;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
}

/* Brand Cards Section */
.brand-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 2.5rem;
  border: 1px solid var(--vtn-border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  height: 100%;
  position: relative;
  overflow: hidden;
}

.brand-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: var(--card-accent, var(--vtn-primary));
}

.brand-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.brand-logo-area {
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 30px;
  text-transform: uppercase;
}

.brand-title {
  font-size: 1.6rem;
  margin-bottom: 0.75rem;
}

.brand-positioning {
  font-style: italic;
  font-size: 0.95rem;
  color: var(--vtn-secondary);
  margin-bottom: 1rem;
  font-weight: 500;
}

.brand-scope-list {
  list-style: none;
  margin: 1.25rem 0 2rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.brand-scope-list li {
  font-size: 0.92rem;
  color: #526069;
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-scope-list li i {
  color: var(--card-accent, var(--vtn-primary));
  font-size: 0.8rem;
}

.brand-card-footer {
  margin-top: auto;
}

/* Capability Cards */
.capability-card {
  background: #ffffff;
  padding: 2rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--vtn-border);
  transition: var(--transition);
  text-align: left;
}

.capability-card:hover {
  transform: translateY(-5px);
  border-color: var(--vtn-secondary);
  box-shadow: var(--shadow-md);
}

.capability-icon {
  width: 60px;
  height: 60px;
  border-radius: 14px;
  background: var(--vtn-light);
  color: var(--vtn-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
  transition: var(--transition);
}

.capability-card:hover .capability-icon {
  background: var(--vtn-primary);
  color: var(--vtn-secondary);
}

/* Workflow Timeline 6 Steps */
.workflow-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1rem;
  margin-top: 3rem;
  position: relative;
}

.step-card {
  background: #ffffff;
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  border: 1px solid var(--vtn-border);
  text-align: center;
  position: relative;
  transition: var(--transition);
}

.step-card:hover {
  border-color: var(--vtn-secondary);
  transform: translateY(-5px);
}

.step-number {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--vtn-primary);
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem auto;
}

.step-title {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.step-desc {
  font-size: 0.85rem;
  color: var(--vtn-muted);
  margin-bottom: 0;
}

/* OEM Form & Dropzone */
.oem-form-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 3.5rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--vtn-border);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
  color: var(--vtn-dark);
}

.form-label span.req {
  color: #e63946;
}

.form-control {
  width: 100%;
  padding: 0.85rem 1.2rem;
  font-size: 1rem;
  font-family: inherit;
  border: 1.5px solid #dce2e6;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  background-color: #fbfcfd;
}

.form-control:focus {
  outline: none;
  border-color: var(--vtn-primary);
  background-color: #ffffff;
  box-shadow: 0 0 0 4px rgba(31, 59, 77, 0.1);
}

.file-dropzone {
  border: 2px dashed #b4c1ca;
  border-radius: var(--radius-sm);
  padding: 2.5rem 1.5rem;
  text-align: center;
  background: #f8fafc;
  cursor: pointer;
  transition: var(--transition);
}

.file-dropzone:hover, .file-dropzone.dragover {
  border-color: var(--vtn-secondary);
  background: #f0f6fa;
}

.dropzone-icon {
  font-size: 2.5rem;
  color: var(--vtn-secondary);
  margin-bottom: 0.75rem;
}

/* Footer Layout */
.site-footer {
  background: var(--vtn-dark);
  color: #b8c4cb;
  padding: 5rem 0 2rem 0;
  border-top: 3px solid var(--vtn-secondary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr 0.9fr 1.2fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 1.15rem;
  margin-bottom: 1.5rem;
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 35px;
  height: 2px;
  background: var(--vtn-secondary);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: #b8c4cb;
  font-size: 0.95rem;
}

.footer-links a:hover {
  color: var(--vtn-secondary);
  padding-left: 5px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.875rem;
}