/* =========================================================
   KR — header.css
   ========================================================= */

.kr-site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--kr-header-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--kr-border);
  color: var(--kr-text);
}
.kr-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .9rem;
  padding: .85rem 0;
}
.kr-header-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: .75rem;
  flex: 1;
  min-width: 0;
}
@media (min-width: 901px) {
  .kr-header-nav { gap: 0; }
}

/* Branding */
.kr-branding {
  display: flex;
  flex-direction: column;
  gap: .15rem;
  min-width: 0;
  max-width: min(560px, calc(100vw - 160px));
}
.kr-site-title {
  display: inline-flex;
  align-items: baseline;
  gap: .55rem;
  font-weight: 850;
  font-size: 1.12rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  line-height: 1;
  white-space: nowrap;
  max-width: min(520px, calc(100vw - 120px));
  overflow: hidden;
  text-overflow: ellipsis;
  text-decoration: none;
  transition: transform 0.3s var(--kr-ease), letter-spacing 0.3s var(--kr-ease);
}
.kr-site-title:focus { outline: none; }
.kr-site-title:focus-visible {
  outline: 2px solid var(--kr-accent);
  outline-offset: 4px;
  border-radius: 4px;
}
.kr-site-title__first { color: var(--kr-text); transition: color 0.3s var(--kr-ease); }
.kr-site-title__rest { color: var(--kr-accent); transition: color 0.3s var(--kr-ease); }
@media (hover: hover) {
  .kr-site-title:hover {
    transform: translateY(-1px);
    letter-spacing: 0.18em;
  }
  .kr-site-title:hover .kr-site-title__first {
    color: var(--kr-accent);
    background: linear-gradient(135deg, var(--kr-text) 0%, var(--kr-accent) 50%, #e8c97a 100%);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-fill-color: transparent;
    filter: drop-shadow(0 0 12px rgba(208,160,88,.25));
  }
  .kr-site-title:hover .kr-site-title__rest {
    background: linear-gradient(135deg, var(--kr-accent) 0%, #e8c97a 50%, var(--kr-accent) 100%);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-fill-color: transparent;
    filter: drop-shadow(0 0 10px rgba(208,160,88,.3));
  }
}
html[lang^="ar"] .kr-site-title,
body.rtl .kr-site-title {
  text-transform: none;
  letter-spacing: 0;
  font-weight: 750;
}
.kr-site-tagline {
  font-size: .85rem;
  opacity: .78;
  max-width: 46ch;
}

/* Hamburger */
.kr-nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border: 1px solid var(--kr-border);
  border-radius: 14px;
  background: var(--kr-surface);
  cursor: pointer;
  transition: background-color .15s var(--kr-ease), border-color .15s var(--kr-ease), transform .15s var(--kr-ease);
  color: var(--kr-text);
}
@media (hover:hover) {
  .kr-nav-toggle:hover { background: var(--kr-hover); }
}
.kr-nav-toggle:active { transform: scale(.98); }

/* Nav */
.kr-nav {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex: 1;
  min-width: 0;
}
@media (min-width: 901px) {
  .kr-nav {
    justify-content: flex-end;
    margin-inline-start: 1rem;
  }
  .kr-menu { order: 1; margin-inline-start: auto; }
  .kr-nav__actions { order: 2; margin-inline-start: .6rem; }
  .kr-menu a { font-size: .95rem; }
}
.kr-nav__actions {
  display: flex;
  align-items: center;
  gap: .5rem;
}

/* Icon buttons */
.kr-icon-btn {
  width: 40px;
  height: 40px;
  border: 1px solid var(--kr-border);
  background: var(--kr-surface);
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color .15s var(--kr-ease), border-color .15s var(--kr-ease), transform .15s var(--kr-ease);
  color: var(--kr-text);
}
@media (hover:hover) {
  .kr-icon-btn:hover { background: var(--kr-hover); }
}
.kr-icon-btn:active { transform: scale(.98); }

/* Language button */
.kr-lang-btn {
  border: 1px solid var(--kr-border);
  background: var(--kr-surface);
  border-radius: 999px;
  padding: .35rem .55rem;
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  cursor: pointer;
  transition: background-color .15s var(--kr-ease), border-color .15s var(--kr-ease), transform .15s var(--kr-ease);
  color: var(--kr-text);
}
@media (hover:hover) {
  .kr-lang-btn:hover { background: var(--kr-hover); }
}
.kr-lang-btn:active { transform: scale(.99); }
.kr-lang-code { font-size: .9rem; }
.kr-flag { display: block; border-radius: 3px; }

/* Menu */
.kr-menu {
  list-style: none;
  display: flex;
  align-items: center;
  gap: .25rem;
  margin: 0;
  padding: 0;
}
.kr-menu a {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .5rem .7rem;
  border-radius: 12px;
  transition: background-color .15s var(--kr-ease), color .15s var(--kr-ease), transform .15s var(--kr-ease);
}
@media (hover:hover) {
  .kr-menu a:hover,
  .kr-menu a:focus {
    background: var(--kr-hover);
    outline: none;
  }
}
.kr-menu a:active { transform: translateY(1px); }

/* Submenu & Dropdown shared */
.kr-menu .menu-item-has-children,
.kr-dropdown { position: relative; }
.kr-menu .menu-item-has-children::after,
.kr-dropdown::after {
  content: "";
  position: absolute;
  left: 0; right: 0;
  top: 100%;
  height: 12px;
}
.kr-menu .sub-menu,
.kr-dropdown__panel {
  list-style: none;
  margin: 0;
  padding: .4rem;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--kr-surface);
  border: 1px solid var(--kr-border);
  border-radius: 14px;
  box-shadow: var(--kr-shadow);
  z-index: 1100;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity .15s var(--kr-ease), transform .15s var(--kr-ease), visibility 0s linear .15s;
}
body.rtl .kr-menu .sub-menu,
html[dir="rtl"] .kr-menu .sub-menu,
html[lang^="ar"] .kr-menu .sub-menu,
body.rtl .kr-dropdown__panel,
html[dir="rtl"] .kr-dropdown__panel,
html[lang^="ar"] .kr-dropdown__panel {
  left: auto;
  right: 0;
}
.kr-menu .sub-menu a,
.kr-dropdown__item {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .55rem .6rem;
  border-radius: 12px;
  transition: background-color .15s var(--kr-ease);
  width: 100%;
}
@media (hover:hover) {
  .kr-menu .sub-menu a:hover,
  .kr-menu .sub-menu a:focus,
  .kr-dropdown__item:hover,
  .kr-dropdown__item:focus {
    background: var(--kr-hover);
    outline: none;
  }
}
.kr-menu .menu-item-has-children:hover > .sub-menu,
.kr-menu .menu-item-has-children:focus-within > .sub-menu,
.kr-dropdown:hover > .kr-dropdown__panel,
.kr-dropdown:focus-within > .kr-dropdown__panel,
.kr-dropdown.is-open > .kr-dropdown__panel {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
  transition: opacity .15s var(--kr-ease), transform .15s var(--kr-ease), visibility 0s;
}

/* Mobile drawer */
.kr-nav-overlay { display: none; }
.kr-drawer-top { display: none; }
@media (max-width: 900px) {
  .kr-nav-toggle { display: inline-flex; }
  body.kr-nav-open { overflow: hidden; }
  .kr-nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.45);
    z-index: 999;
    opacity: 0;
    transition: opacity .2s var(--kr-ease);
  }
  body.kr-nav-open .kr-nav-overlay {
    display: block;
    opacity: 1;
  }
  .kr-nav {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    height: 100dvh;
    width: min(380px, 92vw);
    background: var(--kr-surface);
    border-left: 1px solid var(--kr-border);
    box-shadow: var(--kr-shadow);
    z-index: 1000;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: max(1rem, env(safe-area-inset-top)) 1rem max(1.25rem, env(safe-area-inset-bottom)) 1rem;
    transform: translateX(105%);
    transition: transform .25s var(--kr-ease);
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
    border-radius: 20px 0 0 20px;
  }
  body.kr-nav-open .kr-nav { transform: translateX(0); }
  /* RTL drawer */
  body.rtl .kr-nav,
  html[dir="rtl"] .kr-nav,
  html[lang^="ar"] .kr-nav {
    right: auto;
    left: 0;
    border-left: 0;
    border-right: 1px solid var(--kr-border);
    transform: translateX(-105%);
    border-radius: 0 20px 20px 0;
  }
  body.rtl.kr-nav-open .kr-nav,
  html[dir="rtl"] body.kr-nav-open .kr-nav,
  html[lang^="ar"] body.kr-nav-open .kr-nav {
    transform: translateX(0);
  }
  .kr-drawer-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-bottom: .85rem;
    margin-bottom: .85rem;
    border-bottom: 1px solid var(--kr-border);
  }
  .kr-drawer-close {
    width: 44px;
    height: 44px;
    border: 1px solid var(--kr-border);
    border-radius: 14px;
    background: var(--kr-surface);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--kr-text);
  }
  @media (hover:hover) {
    .kr-drawer-close:hover { background: var(--kr-hover); }
  }
  .kr-nav__actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .5rem;
    padding-bottom: .85rem;
    margin-bottom: .85rem;
    border-bottom: 1px solid var(--kr-border);
  }
  .kr-icon-btn { width: 100%; height: 44px; border-radius: 14px; }
  .kr-lang-btn {
    width: 100%;
    justify-content: space-between;
    height: 44px;
    border-radius: 14px;
  }
  .kr-menu {
    flex-direction: column;
    align-items: stretch;
    gap: .25rem;
  }
  .kr-menu a {
    width: 100%;
    justify-content: space-between;
    padding: .85rem .8rem;
    border-radius: 14px;
    font-size: 1.05rem;
  }
  .kr-menu .menu-item-has-children::after { display: none; }
  .kr-menu .sub-menu {
    position: static;
    box-shadow: none;
    border: 0;
    padding: .15rem 0 .15rem .75rem;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
    transition: none;
    background: transparent;
  }
  body.rtl .kr-menu .sub-menu,
  html[dir="rtl"] .kr-menu .sub-menu,
  html[lang^="ar"] .kr-menu .sub-menu {
    padding-left: 0;
    padding-right: .75rem;
  }
}