:root {
  --pk-base-blue: #0d47a1;
  --pk-base-white: #ffffff;
  --pk-base-gray: rgba(255, 255, 255, 0.08);
  --pk-base-border: rgba(255, 255, 255, 0.15);
  --pk-base-max-width: 1200px;
  --pk-base-gap: 16px;
  --pk-base-radius: 8px;
  --pk-base-transition: 0.2s ease;
  --pk-base-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.pk-base-header {
  background: var(--pk-base-blue);
  color: var(--pk-base-white);
  width: 100%;
  box-sizing: border-box;
}

.pk-base-header-top {
  display: flex;
  align-items: center;
  gap: var(--pk-base-gap);
  padding: 12px 16px;
  max-width: var(--pk-base-max-width);
  margin: 0 auto;
}

.pk-base-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--pk-base-white);
  color: var(--pk-base-blue);
  font-weight: 700;
  font-size: 20px;
  text-decoration: none;
  flex-shrink: 0;
}

.pk-base-search {
  flex: 1;
  display: flex;
  align-items: center;
}

.pk-base-search-input {
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--pk-base-radius);
  border: 1px solid var(--pk-base-border);
  background: var(--pk-base-gray);
  color: var(--pk-base-white);
  outline: none;
  transition: border-color var(--pk-base-transition), box-shadow var(--pk-base-transition);
}

.pk-base-search-input::placeholder {
  color: rgba(255, 255, 255, 0.7);
}

.pk-base-search-input:focus {
  border-color: var(--pk-base-white);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.15);
}

.pk-base-header-icons {
  display: flex;
  align-items: center;
  gap: 10px;
}

.pk-base-icon-link {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--pk-base-gray);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border: 1px solid var(--pk-base-border);
  transition: background var(--pk-base-transition), border-color var(--pk-base-transition);
}

.pk-base-icon-link:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: var(--pk-base-white);
}

.pk-base-icon {
  width: 22px;
  height: 22px;
  fill: var(--pk-base-white);
}

.pk-base-hamburger {
  background: none;
  border: none;
  color: var(--pk-base-white);
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: 50%;
  border: 1px solid var(--pk-base-border);
  background: var(--pk-base-gray);
  transition: background var(--pk-base-transition), border-color var(--pk-base-transition);
}

.pk-base-hamburger:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: var(--pk-base-white);
}

.pk-base-hamburger-icon,
.pk-base-hamburger-icon::before,
.pk-base-hamburger-icon::after {
  content: "";
  display: block;
  width: 18px;
  height: 2px;
  background: var(--pk-base-white);
  border-radius: 2px;
  transition: transform var(--pk-base-transition), opacity var(--pk-base-transition);
  position: relative;
}

.pk-base-hamburger-icon::before {
  position: absolute;
  top: -6px;
}

.pk-base-hamburger-icon::after {
  position: absolute;
  top: 6px;
}

.pk-base-hamburger-active .pk-base-hamburger-icon {
  background: transparent;
}

.pk-base-hamburger-active .pk-base-hamburger-icon::before {
  transform: translateY(6px) rotate(45deg);
}

.pk-base-hamburger-active .pk-base-hamburger-icon::after {
  transform: translateY(-6px) rotate(-45deg);
}

.pk-base-header-bottom {
  width: 100%;
  border-top: 1px solid var(--pk-base-border);
  border-bottom: 1px solid var(--pk-base-border);
  background: var(--pk-base-blue);
}

.pk-base-header-bottom .pk-base-search {
  padding: 10px 16px;
  max-width: var(--pk-base-max-width);
  margin: 0 auto;
}

.pk-base-nav {
  max-width: var(--pk-base-max-width);
  margin: 0 auto;
  padding: 0 16px;
  box-sizing: border-box;
}

.pk-base-nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.pk-base-nav-link {
  display: inline-flex;
  align-items: center;
  padding: 12px 10px;
  color: var(--pk-base-white);
  text-decoration: none;
  font-weight: 600;
  border-radius: 6px;
  transition: background var(--pk-base-transition);
}

.pk-base-nav-link:hover {
  background: rgba(255, 255, 255, 0.18);
}

.pk-base-content {
  width: 100%;
}

.pk-base-main {
  max-width: var(--pk-base-max-width);
  margin: 0 auto;
  padding: 24px 16px;
  box-sizing: border-box;
  color: var(--pk-base-white);
}

.pk-base-footer {
  background: #0a2f6b;
  color: var(--pk-base-white);
  padding: 24px 16px 16px;
  box-sizing: border-box;
}

.pk-base-footer-columns {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  max-width: var(--pk-base-max-width);
  margin: 0 auto 16px;
}

.pk-base-footer-column {
  min-width: 200px;
}

.pk-base-footer-title {
  margin: 0 0 10px;
  font-size: 16px;
  font-weight: 700;
}

.pk-base-footer-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
  font-size: 14px;
}

.pk-base-footer-bottom {
  border-top: 1px solid var(--pk-base-border);
  padding-top: 12px;
  max-width: var(--pk-base-max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  font-size: 13px;
}

.pk-base-footer-link {
  color: var(--pk-base-white);
  text-decoration: none;
  padding: 4px 0;
}

.pk-base-footer-link:hover {
  text-decoration: underline;
}

.pk-base-footer-separator {
  opacity: 0.7;
}

/* Visibility rules */
.pk-base-hamburger {
  display: none;
}

.pk-base-search-mobile {
  display: none;
}

.pk-base-search-desktop {
  display: flex;
}

/* Responsive */
@media (max-width: 900px) {
  .pk-base-header-top {
    gap: 12px;
  }

  .pk-base-nav-list {
    gap: 8px;
  }

  .pk-base-main {
    padding: 20px 14px;
  }
}

@media (max-width: 720px) {
  .pk-base-header-top {
    padding: 12px 14px;
  }

  .pk-base-hamburger {
    display: inline-flex;
  }

  .pk-base-search-desktop {
    display: none;
  }

  .pk-base-search-mobile {
    display: flex;
  }

  .pk-base-header-icons {
    margin-left: auto;
  }

  .pk-base-nav {
    width: 100%;
    padding: 0;
  }

  .pk-base-nav-list {
    flex-direction: column;
    gap: 0;
  }

  .pk-base-nav-link {
    width: 100%;
    padding: 14px 16px;
    border-bottom: 1px solid var(--pk-base-border);
  }

  .pk-base-nav {
    display: none;
  }

  .pk-base-nav.pk-base-nav-open {
    display: block;
    background: var(--pk-base-blue);
    box-shadow: var(--pk-base-shadow);
  }

  .pk-base-footer-columns {
    flex-direction: column;
  }
}