/* Header styles for Marketempo */

.mt-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: linear-gradient(180deg, rgba(9, 13, 29, 0.98), rgba(11, 16, 32, 0.98));
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border-subtle);
}

.mt-skip-link {
  position: absolute;
  top: -40px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent-teal);
  color: #050815;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  z-index: 50;
}

.mt-skip-link:focus {
  top: 12px;
}

.mt-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.6rem;
  padding-bottom: 0.6rem;
}

.mt-header__brand {
  display: flex;
  align-items: center;
  min-width: 0;
}

.mt-header__logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--gray-50);
}

.mt-header__logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 30% 70% 60% 40%;
  background: radial-gradient(circle at 30% 0%, var(--color-accent-teal), var(--color-primary));
  color: #050815;
  font-weight: 700;
  font-family: var(--font-heading);
  font-size: 1rem;
  box-shadow: var(--shadow-sm);
}

.mt-header__logo-text {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

.mt-header__nav {
  flex: 1 1 auto;
}

.mt-header__nav-list {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.mt-header__nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  padding: 0.25rem 0;
}

.mt-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-accent-teal), var(--color-primary));
  transition: width var(--transition-normal);
}

.mt-header__nav-link:hover::after,
.mt-header__nav-link:focus-visible::after {
  width: 100%;
}

.mt-header__nav-link:hover,
.mt-header__nav-link:focus-visible {
  color: var(--gray-50);
}

.mt-header__actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.mt-header__action-btn {
  padding-inline: 1rem;
  font-size: var(--font-size-xs);
}

.mt-header__support-link {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.mt-header__support-link:hover,
.mt-header__support-link:focus-visible {
  color: var(--gray-50);
}

.mt-header__icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border-subtle);
  background: var(--color-surface);
  color: var(--gray-100);
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), color var(--transition-fast);
}

.mt-header__icon-btn:hover,
.mt-header__icon-btn:focus-visible {
  background: var(--color-surface-alt);
  border-color: var(--gray-500);
  box-shadow: var(--shadow-xs);
  transform: translateY(-1px);
}

.mt-header__icon-btn i {
  font-size: 0.9rem;
}

/* Mobile toggle */
.mt-header__toggle {
  display: none;
  position: relative;
  width: 40px;
  height: 32px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border-subtle);
  background: var(--color-surface);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  padding: 0;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.mt-header__toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--gray-100);
  transition: transform var(--transition-normal), opacity var(--transition-fast), width var(--transition-fast);
}

.mt-header__toggle:focus-visible,
.mt-header__toggle:hover {
  background: var(--color-surface-alt);
  border-color: var(--gray-500);
  box-shadow: var(--shadow-xs);
}

.mt-header--menu-open .mt-header__toggle-bar:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}

.mt-header--menu-open .mt-header__toggle-bar:nth-child(2) {
  opacity: 0;
}

.mt-header--menu-open .mt-header__toggle-bar:nth-child(3) {
  transform: translateY(-4px) rotate(-45deg);
}

/* Responsive layout */
@media (max-width: 900px) {
  .mt-header__inner {
    gap: 0.5rem;
  }

  .mt-header__nav-list {
    gap: 1rem;
  }

  .mt-header__action-btn {
    display: none;
  }

  .mt-header__support-link {
    display: none;
  }
}

@media (max-width: 768px) {
  .mt-header__toggle {
    display: inline-flex;
  }

  .mt-header__nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: radial-gradient(circle at top, rgba(31, 191, 191, 0.18), transparent 55%), var(--color-surface);
    border-bottom: 1px solid var(--color-border-subtle);
    transform-origin: top;
    transform: scaleY(0.9);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--transition-normal), transform var(--transition-normal), visibility var(--transition-normal);
  }

  .mt-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: 0.7rem 1rem 1rem;
  }

  .mt-header__nav-link {
    width: 100%;
    padding: 0.4rem 0;
  }

  .mt-header__actions {
    gap: 0.35rem;
  }

  .mt-header__logo-text {
    font-size: 1rem;
  }

  .mt-header--menu-open .mt-header__nav {
    opacity: 1;
    transform: scaleY(1);
    visibility: visible;
    pointer-events: auto;
  }
}

@media (max-width: 520px) {
  .mt-header__logo-text {
    display: none;
  }
}