/* ========================================
   COMPONENTS — Header, Footer, Forms, Nav
   ======================================== */

/* ===== HEADER ===== */
.site-header {
  position: fixed;
  top: 0;
  inset-inline: 0;
  z-index: 100;
  height: var(--header-height);
  padding-top: var(--safe-top);
  background: rgba(15, 34, 51, 0.92);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}
.site-header.scrolled {
  background: rgba(10, 24, 38, 0.97);
  box-shadow: 0 2px 20px rgba(0,0,0,0.25);
}

.header-inner {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--container-pad);
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: var(--space-4);
}

.header-inner .nav-toggle {
  margin-left: auto;
}

/* Logo */
.logo, .footer-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-img {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.logo-img img {
  height: 100px;
  width: auto;
  display: block;
  object-fit: contain;
}
.footer-logo .logo-img img {
  height: 80px;
}

/* Hamburger */
.nav-toggle {
  width: 44px;
  height: 44px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
}
.nav-toggle:hover { background: rgba(255,255,255,0.08); }
.burger-line {
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 1px;
  transition: transform var(--transition-base), opacity var(--transition-base);
  transform-origin: center;
}
.nav-toggle.open .burger-line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open .burger-line:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.open .burger-line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Nav (mobile — now lives outside header to avoid backdrop-filter containing block) */
.main-nav {
  position: fixed;
  top: 0;
  bottom: 0;
  right: 0;
  width: min(320px, 85vw);
  background: var(--color-dark);
  padding: calc(var(--header-height) + var(--safe-top) + var(--space-6)) var(--space-6) calc(var(--space-8) + var(--safe-bottom));
  transform: translateX(100%);
  transition: transform var(--transition-slow) cubic-bezier(0.32, 0, 0.67, 0);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  z-index: 101;
}
.main-nav.open {
  transform: translateX(0);
  transition-timing-function: cubic-bezier(0.33, 1, 0.68, 1);
}

.nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.nav-link {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-display);
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-dark-text);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.nav-link:hover {
  background: rgba(255,255,255,0.08);
  color: #fff;
}
.nav-link--cta {
  margin-top: var(--space-4);
  background: var(--gradient-accent);
  color: #fff;
  text-align: center;
  border-radius: var(--radius-full);
}
.nav-link--cta:hover { filter: brightness(1.1); }

/* Nav overlay */
.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 98;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
}
.nav-overlay.visible {
  opacity: 1;
  pointer-events: auto;
}

/* Language switcher */
.lang-switcher {
  margin-top: auto;
}
.lang-btn {
  font-family: var(--font-display);
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: rgba(255,255,255,0.5);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  letter-spacing: 0.08em;
  min-height: 36px;
}
.lang-btn--active {
  color: #fff;
  background: rgba(255,255,255,0.1);
}
.lang-btn:hover { color: #fff; }
.lang-sep {
  color: rgba(255,255,255,0.2);
  font-size: var(--font-size-xs);
}

/* ===== TABLET+ NAV ===== */
@media (min-width: 768px) {
  .nav-toggle { display: none; }
  .nav-overlay { display: none; }

  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: auto;
    left: auto;
    width: auto;
    height: var(--header-height);
    padding-top: var(--safe-top);
    padding-right: max(var(--container-pad), calc((100vw - var(--max-width)) / 2 + var(--container-pad)));
    padding-left: 0;
    padding-bottom: 0;
    background: transparent;
    transform: none;
    flex-direction: row;
    align-items: center;
    gap: var(--space-2);
    overflow: visible;
    z-index: 100;
  }
  .nav-list {
    flex-direction: row;
    gap: var(--space-1);
  }
  .nav-link {
    font-size: var(--font-size-sm);
    padding: var(--space-2) var(--space-3);
    color: rgba(255,255,255,0.85);
  }
  .nav-link--cta {
    margin-top: 0;
    padding: var(--space-2) var(--space-5);
  }
  .lang-switcher { margin-top: 0; margin-left: var(--space-4); }
  #lang-form { display: flex; align-items: center; gap: var(--space-1); }
}


/* ===== FOOTER ===== */
.site-footer {
  background: var(--color-dark);
  color: var(--color-dark-text);
  margin-top: auto;
  position: relative;
}

.footer-wave {
  color: var(--color-bg);
  line-height: 0;
}
.footer-wave svg {
  width: 100%;
  height: auto;
  display: block;
}

.footer-body {
  max-width: var(--max-width);
  margin-inline: auto;
  padding: var(--space-12) var(--container-pad);
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
}

.footer-brand { max-width: 280px; }
.footer-tagline {
  margin-top: var(--space-3);
  font-size: var(--font-size-sm);
  color: rgba(238,242,247,0.55);
}

.footer-nav__title {
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(238,242,247,0.45);
  margin-bottom: var(--space-4);
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.footer-nav a {
  font-size: var(--font-size-sm);
  color: rgba(238,242,247,0.7);
  transition: color var(--transition-fast);
}
.footer-nav a:hover { color: #fff; }

.footer-contacts {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  font-style: normal;
}

.footer-contact-link {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
  color: rgba(238,242,247,0.7);
  transition: color var(--transition-fast);
  text-decoration: none;
}
.footer-contact-link:hover { color: #fff; }
.footer-contact-link svg { flex-shrink: 0; margin-top: 2px; }

.footer-bottom {
  max-width: var(--max-width);
  margin-inline: auto;
  padding: var(--space-5) var(--container-pad);
  padding-bottom: calc(var(--space-5) + var(--safe-bottom));
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  font-size: var(--font-size-xs);
  color: rgba(238,242,247,0.35);
}
.footer-sitemap-link {
  color: rgba(238,242,247,0.35);
  text-decoration: underline;
}
.footer-sitemap-link:hover { color: rgba(238,242,247,0.7); }

@media (min-width: 768px) {
  .footer-body {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--space-12) var(--space-16);
  }
  .footer-brand { flex: 0 0 240px; }
  .footer-nav { flex: 0 0 160px; }
  .footer-contacts { flex: 1; min-width: 240px; }
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}


/* ===== FORMS ===== */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
@media (min-width: 480px) {
  .form-row { flex-direction: row; }
  .form-row .form-group { flex: 1; }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  -webkit-appearance: none;
  appearance: none;
  min-height: 48px;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26,58,92,0.12);
}
.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--color-text-muted);
}
.contact-form textarea {
  resize: vertical;
  min-height: 110px;
}

.form-error {
  font-size: var(--font-size-xs);
  color: #c0392b;
  font-weight: 500;
}

.form-privacy {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-align: center;
}

/* Contact success */
.contact-success {
  text-align: center;
  padding: var(--space-10) var(--space-4);
}
.success-icon {
  width: 64px;
  height: 64px;
  background: var(--color-success);
  color: #fff;
  font-size: 2rem;
  font-weight: 700;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
}
.contact-success h3 {
  font-size: var(--font-size-2xl);
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}
.contact-success p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
}