/* ============================================
   REDRAG Tools — Shell CSS
   Header, Footer, Navigation, Mobile Menu
   Version: 2.0.0
   ============================================ */

/* ------------------------------------------
   1. HEADER
   ------------------------------------------ */

.rt-header {
  background: var(--rt-bg-overlay);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--rt-border-default);
  position: sticky;
  top: 0;
  z-index: var(--rt-z-sticky);
  min-height: var(--rt-header-height);
}

.rt-header__inner {
  max-width: var(--rt-container-max);
  margin: 0 auto;
  padding: 16px var(--rt-space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--rt-space-5);
}

/* ------------------------------------------
   2. LOGO
   ------------------------------------------ */

.rt-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  transition: var(--rt-transition);
  flex-shrink: 0;
}

.rt-logo:hover {
  opacity: 0.85;
}

.rt-logo__img {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  object-fit: cover;
  flex-shrink: 0;
  box-shadow: var(--rt-shadow-sm);
}

.rt-logo__text {
  font-size: 22px;
  font-weight: var(--rt-weight-black);
  color: var(--rt-text-primary);
  letter-spacing: -0.5px;
}

.rt-logo__text span {
  color: var(--rt-primary);
}

.rt-logo__sup {
  font-size: 11px;
  text-transform: uppercase;
  font-weight: var(--rt-weight-extrabold);
  letter-spacing: 1px;
  color: var(--rt-text-secondary);
  margin-left: 2px;
  vertical-align: super;
  background: var(--rt-bg-elevated);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--rt-border-default);
}

/* ------------------------------------------
   3. NAVIGATION
   ------------------------------------------ */

.rt-nav {
  display: flex;
  gap: var(--rt-space-5);
  list-style: none;
  align-items: center;
}

.rt-nav__link {
  color: var(--rt-text-secondary);
  text-decoration: none;
  font-size: var(--rt-text-small);
  font-weight: var(--rt-weight-semibold);
  transition: var(--rt-transition);
  position: relative;
  padding: 4px 0;
}

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

/* Animated underline */
.rt-nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--rt-primary);
  transition: var(--rt-transition);
  border-radius: 2px;
}

.rt-nav__link:hover::after {
  width: 100%;
}

.rt-nav__link.is-active {
  color: var(--rt-primary);
}

.rt-nav__link.is-active::after {
  width: 100%;
}

/* ------------------------------------------
   4. BUTTONS / MOBILE MENU
   ------------------------------------------ */

.rt-theme-toggle-btn {
  background: none;
  border: none;
  color: var(--rt-text-secondary);
  cursor: pointer;
  padding: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--rt-radius-sm);
  transition: var(--rt-transition);
}

.rt-theme-toggle-btn:hover {
  color: var(--rt-primary);
  background: var(--rt-bg-elevated);
}

.rt-mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--rt-text-primary);
  font-size: 24px;
  cursor: pointer;
  padding: 8px;
  line-height: 1;
}

.rt-mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--rt-bg-base);
  z-index: calc(var(--rt-z-sticky) + 10);
  flex-direction: column;
  padding: var(--rt-space-5);
  animation: rt-fadeIn 0.2s ease;
}

.rt-mobile-menu.is-open {
  display: flex;
}

.rt-mobile-menu__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--rt-space-6);
}

.rt-mobile-menu__close {
  background: none;
  border: none;
  color: var(--rt-text-primary);
  font-size: 28px;
  cursor: pointer;
  padding: 4px;
}

.rt-mobile-menu__nav {
  display: flex;
  flex-direction: column;
  gap: var(--rt-space-4);
}

.rt-mobile-menu__link {
  font-size: 20px;
  font-weight: var(--rt-weight-bold);
  color: var(--rt-text-secondary);
  padding: var(--rt-space-3) 0;
  border-bottom: 1px solid var(--rt-border-default);
  transition: var(--rt-transition);
}

.rt-mobile-menu__link:hover,
.rt-mobile-menu__link.is-active {
  color: var(--rt-primary);
}

/* ------------------------------------------
   5. FOOTER
   ------------------------------------------ */

.rt-footer-new {
  background: var(--rt-bg-base);
  border-top: 1px solid var(--rt-border-default);
  padding: 64px 24px 24px;
  position: relative;
  font-family: inherit;
  margin-top: 48px;
}

.rt-footer-new__inner {
  max-width: var(--rt-container-max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 64px;
}

/* Left Column */
.rt-footer-new__brand-col {
  flex: 0 0 300px;
}

.rt-footer-new__subtitle {
  color: var(--rt-text-muted);
  font-size: 12px;
  margin-bottom: 12px;
}

.rt-footer-new__logo-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  margin-bottom: 16px;
}

.rt-footer-new__logo-img {
  border-radius: 6px;
  object-fit: cover;
}

.rt-footer-new__logo-text {
  font-size: 16px;
  font-weight: 700;
  color: var(--rt-text-primary);
}

.rt-footer-new__tags {
  font-size: 13px;
  color: var(--rt-text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
}

.rt-footer-new__socials {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
}

.rt-footer-new__socials a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--rt-border-default);
  color: var(--rt-text-secondary);
  background: var(--rt-bg-elevated);
  transition: var(--rt-transition);
}

.rt-footer-new__socials a:hover {
  border-color: var(--rt-primary);
  color: var(--rt-primary);
}

.rt-footer-new__bottom {
  max-width: var(--rt-container-max);
  margin: 48px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--rt-border-default);
}

.rt-footer-new__copy {
  font-size: 13px;
  color: var(--rt-text-secondary);
}

.rt-footer-new__copy a {
  color: var(--rt-primary);
  text-decoration: none;
}

/* Right Columns Grid */
.rt-footer-new__links-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  flex: 1;
}

.rt-footer-new__col {
  display: flex;
  flex-direction: column;
}

.rt-footer-new__title {
  font-size: 15px;
  font-weight: 700;
  color: var(--rt-text-primary);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.rt-footer-new__title::after {
  content: '....';
  color: var(--rt-text-muted);
  letter-spacing: 2px;
  opacity: 0.5;
}

.rt-footer-new__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.rt-footer-new__list li {
  position: relative;
  padding-left: 12px;
}

.rt-footer-new__list li::before {
  content: '-';
  position: absolute;
  left: 0;
  color: var(--rt-text-muted);
}

.rt-footer-new__list a {
  color: var(--rt-text-secondary);
  text-decoration: none;
  font-size: 13px;
  transition: var(--rt-transition-fast);
}

.rt-footer-new__list a:hover {
  color: var(--rt-primary);
}

/* ------------------------------------------
   6. RESPONSIVE
   ------------------------------------------ */

@media (max-width: 992px) {
  .rt-footer-new__inner {
    flex-direction: column;
    gap: 32px;
  }
  .rt-footer-new__brand-col {
    flex: none; /* Reset height in column mode */
  }
}

@media (max-width: 768px) {
  .rt-header__inner {
    padding: 14px var(--rt-space-4);
  }

  .rt-nav {
    display: none;
  }

  .rt-mobile-menu-btn {
    display: block;
  }
}

@media (max-width: 600px) {
  .rt-footer-new__links-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px 16px;
  }
}