/**
 * SESİN İşitme Cihazları — Layout & Navigation Architecture
 */

/* ==========================================================================
   TOP NOTIFICATION & CONTACT BAR
   ========================================================================== */
.top-bar {
  background-color: var(--color-primary-950);
  color: var(--color-slate-300);
  font-size: 0.78125rem;
  padding-block: 0.4rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.top-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.top-bar-left,
.top-bar-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.top-bar-item {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: #94a3b8;
  letter-spacing: 0.01em;
}

.top-bar-item strong {
  color: #f1f5f9;
}

.top-bar-item a {
  color: #f1f5f9;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.top-bar-item a:hover {
  color: var(--color-accent-400);
}

.top-bar-badge {
  background: rgba(14, 165, 233, 0.12);
  color: #38bdf8;
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius-full);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

/* ==========================================================================
   MAIN SITE HEADER (Refined, Editorial & Lightweight)
   ========================================================================== */
.site-header {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.03);
  transition: background-color var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.98);
  border-bottom-color: rgba(15, 23, 42, 0.1);
  box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.08), 0 1px 2px rgba(15, 23, 42, 0.04);
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  transition: height var(--transition-base);
  gap: 1.25rem;
}

.site-header.is-scrolled .site-header-inner {
  height: 60px;
}

/* Brand Logo — Refined, Restrained Dimensions */
.site-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  flex-shrink: 0;
}

.site-logo-img {
  height: 40px;
  width: auto;
  max-width: 185px;
  object-fit: contain;
  transition: height var(--transition-base), opacity var(--transition-fast);
}

.site-header.is-scrolled .site-logo-img {
  height: 34px;
}

@media (max-width: 1200px) {
  .site-logo-img {
    height: 38px;
    max-width: 165px;
  }
}

@media (max-width: 991px) {
  .site-header-inner {
    height: 66px;
  }
  .site-logo-img {
    height: 36px;
    max-width: 155px;
  }
}

@media (max-width: 576px) {
  .site-header-inner {
    height: 60px;
  }
  .site-logo-img {
    height: 32px;
    max-width: 140px;
  }
}

/* Desktop Navigation — Editorial, Crisp, Zero Pill Clutter */
.nav-desktop {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

@media (max-width: 1200px) and (min-width: 992px) {
  .nav-desktop {
    gap: 0.25rem;
  }
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-slate-600);
  padding: 0.45rem 0.75rem;
  border-radius: 6px;
  transition: color var(--transition-fast), background-color var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  letter-spacing: -0.01em;
}

@media (max-width: 1200px) and (min-width: 992px) {
  .nav-link {
    font-size: 0.8125rem;
    padding: 0.4rem 0.55rem;
  }
}

.nav-link .nav-chevron {
  color: var(--color-slate-400);
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-slate-950);
  background-color: rgba(15, 23, 42, 0.03);
}

.nav-link:hover .nav-chevron {
  color: var(--color-slate-950);
  transform: translateY(1px);
}

.nav-link.active {
  color: var(--color-slate-950);
  font-weight: 600;
  background-color: transparent;
}

/* Subtle editorial underline indicator for active item */
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0.75rem;
  right: 0.75rem;
  height: 2px;
  background: var(--color-accent-600);
  border-radius: 2px;
}

.nav-item-dropdown {
  position: relative;
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  width: 270px;
  background: var(--color-white);
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: var(--radius-md);
  box-shadow: 0 16px 36px -4px rgba(15, 23, 42, 0.1), 0 4px 12px rgba(15, 23, 42, 0.04);
  padding: 0.45rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  z-index: 950;
}

.nav-item-dropdown:hover .nav-dropdown-menu,
.nav-item-dropdown:focus-within .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown-link {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.84375rem;
  font-weight: 500;
  color: var(--color-slate-700);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.nav-dropdown-link:hover {
  background-color: var(--color-slate-50);
  color: var(--color-accent-600);
  transform: translateX(2px);
}

/* Header Action Elements: Minimal Phone Link + Refined WhatsApp CTA */
.header-actions {
  display: flex;
  align-items: center;
  gap: 1.15rem;
  flex-shrink: 0;
}

.header-phone-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-slate-600);
  text-decoration: none;
  padding: 0.35rem 0;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.header-phone-link .phone-icon {
  color: var(--color-slate-400);
  transition: color var(--transition-fast);
}

.header-phone-link:hover {
  color: var(--color-slate-950);
}

.header-phone-link:hover .phone-icon {
  color: var(--color-accent-600);
}

.btn-header-wa {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.42rem 0.95rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #0f766e;
  background-color: rgba(18, 140, 126, 0.08);
  border: 1px solid rgba(18, 140, 126, 0.22);
  border-radius: 8px;
  text-decoration: none;
  box-shadow: none;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-header-wa:hover {
  background-color: var(--color-whatsapp-dark);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 4px 12px rgba(18, 140, 126, 0.22);
  transform: translateY(-1px);
}

/* Mobile Toggle Hamburger */
.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  color: var(--color-slate-800);
  transition: background-color var(--transition-fast), color var(--transition-fast);
  margin-left: auto;
}

.mobile-toggle:hover {
  background-color: var(--color-slate-100);
  color: var(--color-primary-950);
}

@media (max-width: 1200px) {
  .header-phone-link .phone-number {
    display: none;
  }
  .header-phone-link {
    padding: 0.45rem;
  }
}

@media (max-width: 991px) {
  .nav-desktop {
    display: none !important;
  }
  .header-phone-link {
    display: none !important;
  }
  .btn-header-wa {
    display: none !important; /* Mobile bottom action bar already provides sticky WhatsApp contact */
  }
  .mobile-toggle {
    display: inline-flex !important;
  }
}

/* ==========================================================================
   MOBILE OFF-CANVAS DRAWER
   ========================================================================== */
.mobile-drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.mobile-drawer-overlay.is-active {
  opacity: 1;
  visibility: visible;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(85vw, 340px);
  background: var(--color-white);
  z-index: 1001;
  box-shadow: -5px 0 25px rgba(0, 0, 0, 0.15);
  display: none;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  overflow-y: auto;
}

.mobile-drawer.is-active {
  display: flex;
  transform: translateX(0);
  pointer-events: auto;
}

.mobile-drawer-header {
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
}

.mobile-drawer-close {
  background: transparent;
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--color-slate-600);
}

.mobile-drawer-body {
  padding: 1.5rem;
  flex: 1 1 auto;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 1rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-slate-800);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  background-color: var(--color-accent-50);
  color: var(--color-accent-600);
}

/* Mobile Services Accordion */
.mobile-nav-accordion {
  display: flex;
  flex-direction: column;
}

.mobile-nav-accordion-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.8rem 1rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-slate-800);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: left;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.mobile-nav-accordion-btn:hover,
.mobile-nav-accordion-btn.active,
.mobile-nav-accordion.is-expanded > .mobile-nav-accordion-btn {
  background-color: var(--color-accent-50);
  color: var(--color-accent-600);
}

.accordion-chevron {
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  color: var(--color-slate-500);
}

.mobile-nav-accordion.is-expanded .accordion-chevron {
  transform: rotate(180deg);
  color: var(--color-accent-600);
}

.mobile-nav-sublist {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.25s ease;
  opacity: 0;
  display: flex;
  flex-direction: column;
  background-color: #f8fafc;
  border-radius: var(--radius-sm);
  margin-top: 0.25rem;
}

.mobile-nav-accordion.is-expanded .mobile-nav-sublist {
  max-height: 400px;
  opacity: 1;
  padding: 0.4rem 0;
  border: 1px solid rgba(226, 232, 240, 0.8);
}

.mobile-subnav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 1rem 0.65rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-slate-700);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.mobile-subnav-link .subnav-icon {
  display: inline-flex;
  align-items: center;
  color: var(--color-accent-600);
}

.mobile-subnav-link:hover,
.mobile-subnav-link.active {
  background-color: rgba(2, 132, 199, 0.1);
  color: var(--color-accent-700);
  padding-left: 1.5rem;
  font-weight: 600;
}

.mobile-drawer-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--border-subtle);
  background-color: var(--color-slate-50);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* ==========================================================================
   FOOTER ARCHITECTURE
   ========================================================================== */
.site-footer {
  background-color: var(--color-primary-950);
  color: var(--color-slate-300);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: clamp(3.5rem, 5vw, 5rem);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1.2fr 1.2fr 1.5fr;
  gap: clamp(1.5rem, 3vw, 3rem);
  margin-bottom: 3.5rem;
}

.footer-col-title {
  color: var(--color-white);
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  position: relative;
  display: inline-block;
}

.footer-col-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -0.4rem;
  width: 24px;
  height: 2px;
  background-color: var(--color-accent-500);
  border-radius: var(--radius-full);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.footer-links a {
  color: var(--color-slate-300);
  font-size: 0.9375rem;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.footer-links a:hover {
  color: var(--color-white);
  transform: translateX(4px);
}

.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.9375rem;
  color: var(--color-slate-700); /* Dark slate for high contrast on light backgrounds */
}

.footer-contact-item strong {
  color: var(--color-slate-900);
}

.footer-contact-item svg {
  flex-shrink: 0;
  margin-top: 0.2rem;
  color: var(--color-accent-600);
}

.footer-contact-item a {
  color: var(--color-slate-900);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-contact-item a:hover {
  color: var(--color-accent-600);
}

/* Dark Footer Specific Overrides */
.site-footer .footer-contact-item {
  color: var(--color-slate-300);
}

.site-footer .footer-contact-item strong {
  color: #ffffff;
}

.site-footer .footer-contact-item svg {
  color: var(--color-accent-400);
}

.site-footer .footer-contact-item a {
  color: var(--color-slate-200);
}

.site-footer .footer-contact-item a:hover {
  color: var(--color-white);
}

/* ==========================================================================
   PAGE CONTACT CARD STYLES (High-contrast, Crisp Medical Precision)
   ========================================================================== */
.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.contact-info-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background-color: var(--color-accent-50);
  color: var(--color-accent-600);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid rgba(2, 132, 199, 0.12);
}

.contact-info-icon.icon-whatsapp {
  background-color: rgba(37, 211, 102, 0.12);
  color: #128c7e;
  border-color: rgba(37, 211, 102, 0.25);
}

.contact-info-body {
  flex: 1;
  min-width: 0;
}

.contact-info-label {
  display: block;
  font-size: 0.78125rem;
  font-weight: 700;
  color: var(--color-slate-500);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.25rem;
}

.contact-info-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-slate-900);
  line-height: 1.5;
}

.contact-info-value a {
  color: var(--color-slate-900);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.contact-info-value a:hover {
  color: var(--color-accent-600);
}

.contact-hours-list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.875rem;
  color: var(--color-slate-700);
  margin-top: 0.25rem;
}

.contact-hours-row {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  border-bottom: 1px dashed rgba(15, 23, 42, 0.08);
  padding-bottom: 0.3rem;
}

.contact-hours-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.contact-hours-row span:first-child {
  color: var(--color-slate-600);
}

.contact-hours-row span:last-child {
  font-weight: 700;
  color: var(--color-slate-900);
}

.footer-bottom {
  padding-block: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.875rem;
  color: var(--color-slate-400);
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-legal-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.footer-legal-links a {
  color: var(--color-slate-400);
}

.footer-legal-links a:hover {
  color: var(--color-white);
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .top-bar {
    display: none; /* Keep mobile screen clean and uncluttered */
  }
  .site-header-inner {
    height: 60px;
  }
  .site-logo-img {
    height: 34px;
    max-width: 155px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .footer-bottom-inner {
    flex-direction: column;
    text-align: center;
  }
  .footer-legal-links {
    justify-content: center;
  }
}

@media (max-width: 576px) {
  .site-header-inner {
    height: 60px;
  }
  .site-logo-img {
    height: 36px;
    max-width: 150px;
  }
  .header-actions {
    gap: 0.4rem;
  }
  .header-actions .btn-primary {
    display: none; /* Instant call button is permanently available in sticky mobile bottom bar */
  }
  .header-actions .btn-whatsapp {
    padding: 0.45rem 0.85rem;
    font-size: 0.8125rem;
  }
}

@media (max-width: 380px) {
  .site-logo-img {
    height: 32px;
    max-width: 130px;
  }
  .header-actions .btn-whatsapp span {
    display: none;
  }
  .header-actions .btn-whatsapp {
    padding: 0.5rem;
    border-radius: var(--radius-full);
  }
}