/* Header Solid */

.header-solid {
  container-type: inline-size;
  container-name: header-solid;
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 1000;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-primary);
  transition: backdrop-filter 0.4s ease, box-shadow 0.4s ease;
}

.header-solid.is-scrolled {
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-s);
}

.header-solid__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-m) 0;
  gap: var(--space-xl);
}

/* Logo */
.header-solid__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.header-solid__logo-img {
  height: 36px;
  width: auto;
  transition: opacity 0.3s ease;
}

.header-solid__logo:hover .header-solid__logo-img {
  opacity: 0.8;
}

/* Desktop Navigation */
.header-solid__nav {
  display: flex;
  align-items: center;
  flex: 1;
  justify-content: center;
}

.header-solid__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
  list-style: none;
  margin: 0;
  padding: 0;
}

.header-solid__nav-link {
  font-family: var(--font-primary);
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-body);
  text-decoration: none;
  position: relative;
  padding: var(--space-2xs) 0;
  transition: color 0.3s ease;
}

.header-solid__nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 1px;
  background: var(--text-title);
  transition: width 0.3s ease;
}

.header-solid__nav-link:hover {
  color: var(--text-title);
}

.header-solid__nav-link:hover::after {
  width: 100%;
}

/* CTA */
.header-solid__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  font-family: var(--font-primary);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-title);
  text-decoration: none;
  padding: var(--space-xs) var(--space-m);
  border: 1px solid var(--text-title);
  border-radius: 2px;
  transition: background 0.3s ease, color 0.3s ease;
  flex-shrink: 0;
}

.header-solid__cta:hover {
  background: var(--text-title);
  color: var(--bg-body);
}

.header-solid__cta i,
.header-solid__cta svg {
  width: 14px;
  height: 14px;
}

/* Mobile Toggle */
.header-solid__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.header-solid__toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-title);
  border-radius: 1px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.header-solid__toggle[aria-expanded="true"] .header-solid__toggle-bar:first-child {
  transform: translateY(7px) rotate(45deg);
}

.header-solid__toggle[aria-expanded="true"] .header-solid__toggle-bar:nth-child(2) {
  opacity: 0;
}

.header-solid__toggle[aria-expanded="true"] .header-solid__toggle-bar:last-child {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Navigation */
.header-solid__mobile-nav {
  display: none;
  padding: var(--space-s) 0 var(--space-xl);
  border-top: 1px solid var(--border-primary);
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.header-solid__mobile-nav.is-open {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.header-solid__mobile-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.header-solid__mobile-link {
  display: block;
  padding: var(--space-s) 0;
  font-family: var(--font-primary);
  font-size: var(--text-m);
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-title);
  text-decoration: none;
  border-bottom: 1px solid var(--border-primary);
  transition: opacity 0.3s ease, padding-left 0.3s ease;
}

.header-solid__mobile-link:hover {
  opacity: 0.6;
  padding-left: var(--space-s);
}

.header-solid__mobile-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  width: 100%;
  margin-top: var(--space-l);
  padding: var(--space-s) var(--space-l);
  font-family: var(--font-primary);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  background: var(--text-title);
  color: var(--bg-body);
  border-radius: 2px;
  transition: opacity 0.3s ease;
}

.header-solid__mobile-cta i,
.header-solid__mobile-cta svg {
  width: 14px;
  height: 14px;
}

.header-solid__mobile-cta:hover {
  opacity: 0.9;
}

/* Container Queries */
@container header-solid (max-width: 968px) {
  .header-solid__nav-list {
    gap: var(--space-xl);
  }
}

@container header-solid (max-width: 768px) {
  .header-solid__nav,
  .header-solid__cta {
    display: none;
  }

  .header-solid__toggle {
    display: flex;
  }
}

@container header-solid (max-width: 480px) {
  .header-solid__inner {
    padding: var(--space-s) 0;
  }

  .header-solid__logo-img {
    height: 28px;
  }

  .header-solid__mobile-link {
    font-size: var(--text-s);
  }

  .header-solid__mobile-cta {
    font-size: var(--text-2xs);
  }
}