/* HEADER */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: #ffffff;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  z-index: 1000;
  transition: background-color 0.3s ease;
}

.header__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo img {
  display: block;
}

.nav {
  display: flex;
  gap: var(--space-6);
}

.nav__link {
  font-weight: 500;
  font-size: var(--fs-sm);
  color: #192a3d;
  transition: color 0.2s ease;
}

.nav__link:hover {
  color: var(--color-primary);
}

.lang-switcher {
  background-color: rgba(0, 0, 0, 0.03);
  color: #192a3d;
  padding: var(--space-2) var(--space-4);
  border-radius: 20px;
  font-size: var(--fs-xs);
  font-weight: 600;
  border: 1px solid rgba(0, 0, 0, 0.08);
  transition: background-color 0.2s ease;
}

.lang-switcher:hover {
  background-color: rgba(0, 0, 0, 0.06);
}

/* BREADCRUMB */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}

.breadcrumb__link:hover {
  color: var(--color-primary);
}

.breadcrumb__separator {
  color: rgba(255, 255, 255, 0.2);
}

.breadcrumb__current {
  color: var(--color-text);
  font-weight: 500;
}

/* CHECKOUT SUMMARY */
.checkout__summary {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
}

.checkout__summary-row {
  display: flex;
  justify-content: space-between;
  padding: var(--space-3) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.checkout__summary-row:last-child {
  border-bottom: none;
  font-weight: 700;
  color: var(--color-primary);
  font-size: var(--fs-lg);
}

/* FORMS */
.form__group {
  margin-bottom: var(--space-4);
}

.form__label {
  display: block;
  font-size: var(--fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-2);
  color: var(--color-text-muted);
}

.form__input,
.form__select {
  width: 100%;
  padding: 0.75rem var(--space-4);
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.form__input:focus,
.form__select:focus {
  outline: none;
  border-color: var(--color-primary);
  background-color: rgba(255, 255, 255, 0.05);
}

.form__select option {
  background-color: var(--color-bg);
  color: var(--color-text);
}

.form__error {
  display: none;
  font-size: var(--fs-xs);
  color: var(--color-error);
  margin-top: var(--space-1);
}

.has-error .form__input,
.has-error .form__select {
  border-color: var(--color-error);
  background-color: rgba(239, 68, 68, 0.03);
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.1s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn--primary {
  background-color: var(--color-primary);
  color: white;
}

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

.btn--lg {
  padding: 1rem var(--space-6);
  font-size: var(--fs-md);
}

/* FOOTER */
.footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-6) 0;
  margin-top: var(--space-8);
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}

.footer__bottom {
  text-align: center;
}

/* MOBILE NAV */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -280px;
  width: 280px;
  height: 100%;
  background-color: var(--color-bg);
  z-index: 1002;
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
  padding: var(--space-8) var(--space-6);
  gap: var(--space-4);
  box-shadow: -10px 0 30px rgba(0,0,0,0.5);
}

.mobile-nav.is-open {
  transform: translateX(-280px);
}

.mobile-nav__overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.6);
  z-index: 1001;
}

.mobile-nav__link {
  font-size: var(--fs-lg);
  font-weight: 600;
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-border);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
}

.menu-toggle__bar {
  width: 25px;
  height: 2px;
  background-color: #192a3d;
  transition: all 0.3s ease;
}