/* ==========================================================================
   AYTEL UG (haftungsbeschränkt) - Official Corporate Light UI Components
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Header & Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  display: flex;
  align-items: center;
  background: #FFFFFF;
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-normal);
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 2px solid var(--accent-red);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo-img {
  height: 48px;
  width: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 28px;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
  padding: 6px 0;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--accent-red);
  transition: width var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent-red);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Sharp Language Switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 2px;
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 5px 10px;
  border-radius: var(--radius-xs);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lang-btn:hover {
  color: var(--text-primary);
}

.lang-btn.active {
  background: var(--accent-navy);
  color: #FFFFFF;
}

/* Mobile Menu Toggle */
.mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px;
}

/* --------------------------------------------------------------------------
   2. Official Sharp Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 26px;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  border: none;
  white-space: nowrap;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.btn-primary {
  background: var(--accent-red);
  color: #FFFFFF;
  border: 1px solid var(--accent-red);
  box-shadow: 0 2px 8px rgba(220, 38, 38, 0.25);
}

.btn-primary:hover {
  background: var(--accent-red-hover);
  border-color: var(--accent-red-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.35);
}

.btn-secondary {
  background: #FFFFFF;
  color: var(--accent-navy);
  border: 1px solid var(--border-medium);
}

.btn-secondary:hover {
  background: var(--bg-tertiary);
  border-color: var(--accent-navy);
  transform: translateY(-1px);
}

.btn-sm {
  padding: 7px 16px;
  font-size: 0.825rem;
}

.btn-lg {
  padding: 15px 32px;
  font-size: 0.95rem;
}

/* --------------------------------------------------------------------------
   3. Hero Section
   -------------------------------------------------------------------------- */
.hero-section {
  padding-top: calc(var(--header-height) + 60px);
  padding-bottom: 80px;
  background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}

.hero-content h1 {
  margin-bottom: 20px;
}

.hero-content p.lead {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 620px;
  line-height: 1.65;
}

.hero-buttons {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 44px;
  flex-wrap: wrap;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding-top: 28px;
  border-top: 1px solid var(--border-subtle);
}

.stat-item h3 {
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--accent-navy);
  margin-bottom: 4px;
  display: flex;
  align-items: baseline;
  gap: 2px;
}

.stat-item h3 .accent {
  color: var(--accent-red);
}

.stat-item p {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
}

/* Hero Visual & Feature Interactive Card */
.hero-visual {
  position: relative;
}

.hero-card-main {
  background: #FFFFFF;
  border: 1px solid var(--border-medium);
  border-top: 4px solid var(--accent-red);
  border-radius: var(--radius-sm);
  padding: 32px;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.hero-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-subtle);
}

.company-tag {
  display: flex;
  align-items: center;
  gap: 10px;
}

.company-tag .dot {
  width: 8px;
  height: 8px;
  border-radius: 0px;
  background: var(--accent-red);
}

.company-tag span {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent-navy);
  letter-spacing: 0.02em;
}

.hero-features-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.hero-feat-item {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--bg-secondary);
  padding: 14px 16px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid transparent;
  transition: all var(--transition-fast);
}

.hero-feat-item:hover {
  background: #FFFFFF;
  border-color: var(--border-medium);
  border-left-color: var(--accent-red);
  box-shadow: var(--shadow-sm);
  transform: translateX(4px);
}

.feat-icon-box {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-xs);
  background: var(--accent-red-light);
  border: 1px solid var(--accent-red-border);
  color: var(--accent-red);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.feat-text h4 {
  font-size: 0.925rem;
  font-weight: 700;
  margin-bottom: 2px;
  color: var(--text-primary);
}

.feat-text p {
  font-size: 0.825rem;
  color: var(--text-muted);
}

.floating-badge {
  position: absolute;
  background: #FFFFFF;
  border: 1px solid var(--border-medium);
  border-left: 3px solid var(--accent-navy);
  padding: 8px 16px;
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-md);
  z-index: 2;
}

.floating-badge.bottom-left {
  bottom: -14px;
  left: -14px;
}

.floating-badge.top-right {
  top: -14px;
  right: -14px;
}

/* --------------------------------------------------------------------------
   4. Services Grid (Sharp Light Cards)
   -------------------------------------------------------------------------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.service-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-top: 3px solid var(--accent-navy);
  background: #FFFFFF;
}

.service-card:hover {
  border-top-color: var(--accent-red);
}

.service-icon-wrapper {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-xs);
  background: var(--accent-red-light);
  border: 1px solid var(--accent-red-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-red);
  margin-bottom: 20px;
}

.service-card h3 {
  margin-bottom: 10px;
  font-size: 1.35rem;
  color: var(--accent-navy);
}

.service-card p {
  font-size: 0.95rem;
  margin-bottom: 18px;
  line-height: 1.6;
  color: var(--text-secondary);
}

.service-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
}

.service-features li {
  font-size: 0.875rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.service-features li svg {
  color: var(--accent-red);
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   5. Interactive Category / Industry Tabs
   -------------------------------------------------------------------------- */
.tabs-container {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.tabs-nav {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}

.tab-btn {
  background: #FFFFFF;
  border: 1px solid var(--border-medium);
  color: var(--text-secondary);
  padding: 12px 22px;
  border-radius: var(--radius-xs);
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.tab-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--accent-navy);
}

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

.tab-pane {
  display: none;
  animation: fadeIn 0.25s ease-out forwards;
}

.tab-pane.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.tab-content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.tab-details h3 {
  margin-bottom: 14px;
  font-size: 1.65rem;
  color: var(--accent-navy);
}

.tab-details p {
  margin-bottom: 22px;
  font-size: 1.025rem;
}

.tab-specs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.spec-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--accent-red);
  border-radius: var(--radius-xs);
  padding: 16px;
}

.spec-box h4 {
  font-size: 0.925rem;
  color: var(--accent-navy);
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.spec-box h4 svg {
  color: var(--accent-red);
}

.spec-box p {
  font-size: 0.825rem;
  color: var(--text-muted);
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   6. Company Registry & Trust Section (Resmi Sicil)
   -------------------------------------------------------------------------- */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 36px;
}

.trust-item {
  background: #FFFFFF;
  border: 1px solid var(--border-medium);
  border-left: 3px solid var(--accent-navy);
  border-radius: var(--radius-xs);
  padding: 22px;
  text-align: left;
  box-shadow: var(--shadow-sm);
}

.trust-item .label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 4px;
  font-weight: 700;
}

.trust-item .value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-navy);
  word-break: break-word;
}

.trust-item .desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* --------------------------------------------------------------------------
   7. Contact & Offer Form
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
  align-items: flex-start;
}

.contact-info-card {
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.info-item {
  display: flex;
  gap: 16px;
}

.info-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-xs);
  background: var(--accent-red-light);
  border: 1px solid var(--accent-red-border);
  color: var(--accent-red);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.info-text h4 {
  font-size: 0.95rem;
  margin-bottom: 2px;
  color: var(--accent-navy);
}

.info-text p, .info-text a {
  font-size: 0.925rem;
  color: var(--text-secondary);
}

.info-text a:hover {
  color: var(--accent-red);
}

.form-group {
  margin-bottom: 18px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 12px 16px;
  background: #FFFFFF;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xs);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.925rem;
  transition: all var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--accent-red);
  box-shadow: 0 0 0 2px rgba(220, 38, 38, 0.15);
  outline: none;
}

.form-textarea {
  resize: vertical;
  min-height: 110px;
}

.form-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 22px;
}

.form-check input[type="checkbox"] {
  margin-top: 4px;
  accent-color: var(--accent-red);
  width: 15px;
  height: 15px;
}

.form-check label {
  font-size: 0.825rem;
  color: var(--text-secondary);
}

.form-check label a {
  color: var(--accent-red);
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   8. FAQ Accordion
   -------------------------------------------------------------------------- */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--border-medium);
  border-radius: var(--radius-xs);
  background: #FFFFFF;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.faq-item.active {
  border-color: var(--border-medium);
  border-left-color: var(--accent-red);
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 18px 22px;
  background: transparent;
  border: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  cursor: pointer;
}

.faq-icon {
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-red);
  transition: transform var(--transition-normal);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease-out, padding 0.25s ease-out;
  padding: 0 22px;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 22px 18px 22px;
}

.faq-answer p {
  font-size: 0.925rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   9. Footer (Official Corporate Navy & White)
   -------------------------------------------------------------------------- */
.site-footer {
  background: #0B192C;
  color: #FFFFFF;
  border-top: 3px solid var(--accent-red);
  padding: 70px 0 25px 0;
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand p {
  margin-top: 16px;
  font-size: 0.875rem;
  color: #CBD5E1;
  max-width: 320px;
  line-height: 1.6;
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 18px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-left: 2px solid var(--accent-red);
  padding-left: 8px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 0.875rem;
  color: #CBD5E1;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: #FFFFFF;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 25px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.825rem;
  color: #94A3B8;
}

.footer-legal-links {
  display: flex;
  gap: 18px;
}

.footer-legal-links a {
  color: #94A3B8;
}

.footer-legal-links a:hover {
  color: #FFFFFF;
}

/* --------------------------------------------------------------------------
   10. Cookie Banner & Toast Notification
   -------------------------------------------------------------------------- */
.cookie-banner {
  position: fixed;
  bottom: 20px;
  right: 20px;
  max-width: 420px;
  background: #FFFFFF;
  border: 1px solid var(--border-medium);
  border-top: 3px solid var(--accent-red);
  border-radius: var(--radius-xs);
  padding: 20px;
  box-shadow: var(--shadow-lg);
  z-index: 9999;
  display: none;
  animation: slideUp 0.25s ease-out forwards;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.cookie-banner h4 {
  font-size: 1rem;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-navy);
}

.cookie-banner p {
  font-size: 0.825rem;
  margin-bottom: 16px;
  line-height: 1.5;
  color: var(--text-secondary);
}

.cookie-buttons {
  display: flex;
  gap: 8px;
}

/* Toast */
.toast-container {
  position: fixed;
  top: 90px;
  right: 20px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background: #FFFFFF;
  border: 1px solid var(--border-medium);
  border-left: 4px solid var(--accent-red);
  border-radius: var(--radius-xs);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
  animation: toastIn 0.2s ease-out forwards;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}