/* ==========================================================================
   KATARI JYOTHSNA - header.css
   Sticky glass header, logo lockup, desktop nav with mega-panel,
   theme toggle, mobile drawer, sticky mobile action bar.
   Markup is generated by assets/js/header.js
   ========================================================================== */

/* ---------------------------------------------------------- Announcement */
.announce {
  position: relative;
  z-index: calc(var(--z-header) + 1);
  background: var(--brand-plum-900);
  color: color-mix(in oklab, var(--brand-cream-100) 74%, transparent);
  font-size: .64rem;
  font-weight: 500;
  letter-spacing: .26em;
  text-transform: uppercase;
}
.announce__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(.9rem, 2.4vw, 2rem);
  padding-block: .62rem;
}
.announce__item { white-space: nowrap; text-decoration: none; color: inherit; }
a.announce__item:hover { color: var(--brand-marigold); }
.announce__item b { color: var(--brand-marigold); font-weight: 600; }
.announce__sep {
  width: 3px; height: 3px;
  flex: none;
  rotate: 45deg;
  background: var(--brand-marigold);
  opacity: .6;
}
/* On a narrow screen only the booking line survives */
@media (max-width: 700px) {
  .announce__item--wide,
  .announce__sep { display: none; }
  .announce__inner { gap: 0; }
  .announce__item + .announce__item { display: none; }
}

/* --------------------------------------------------------------- Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  transition: transform var(--dur-slow) var(--ease-out-expo),
              background-color var(--dur-base) var(--ease-out-quint),
              border-color var(--dur-base) var(--ease-out-quint),
              backdrop-filter var(--dur-base) linear;
  border-bottom: 1px solid transparent;
}
.site-header.is-stuck {
  background: var(--glass);
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  border-bottom-color: var(--glass-border);
  box-shadow: var(--shadow-s);
}
.site-header.is-hidden { transform: translateY(-100%); }
.site-header.is-open { transform: none; }

.header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-m);
  /* A FIXED value, never var(--header-h).
     --header-h is written by header.js from this element's own measured
     height; feeding it back in here created a resize loop that made the
     header - and the whole page - grow without end. */
  min-height: 4.25rem;
  padding-block: .55rem;
}

/* ----------------------------------------------------------------- Logo */
.logo {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  text-decoration: none;
  color: var(--ink-strong);
  flex: none;
}
.logo__text { display: flex; flex-direction: column; line-height: 1; }
.logo__name {
  font-family: var(--font-display);
  font-size: clamp(1.42rem, 1.8vw, 1.72rem);
  font-weight: 400;
  letter-spacing: .012em;
  color: var(--ink-strong);
  white-space: nowrap;
  transition: color var(--dur-base) var(--ease-out-quint);
}
.logo:hover .logo__name { color: var(--accent); }
/* A hairline rule between name and sub-line does the work the icon used to */
.logo__sub {
  position: relative;
  font-size: .5rem;
  font-weight: 600;
  letter-spacing: .38em;
  text-transform: uppercase;
  color: var(--gold);
  margin-top: .3rem;
  padding-top: .3rem;
  white-space: nowrap;
}
.logo__sub::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 1.9rem;
  height: 1px;
  background: currentColor;
  opacity: .55;
  transition: width var(--dur-slow) var(--ease-out-expo);
}
.logo:hover .logo__sub::before { width: 100%; }

/* ------------------------------------------------------------ Desktop nav */
.nav { display: none; }
.nav__list { display: flex; align-items: center; gap: clamp(.35rem, 1.3vw, 1.1rem); list-style: none; margin: 0; padding: 0; }
.nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .5rem .72rem;
  border-radius: var(--r-pill);
  font-size: .82rem;
  font-weight: 500;
  letter-spacing: .085em;
  color: var(--ink-soft);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur-base) var(--ease-out-quint), background-color var(--dur-base) var(--ease-out-quint);
}
.nav__link::after {
  content: "";
  position: absolute;
  left: .72rem; right: .72rem;
  bottom: .3rem;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--dur-base) var(--ease-out-expo);
}
.nav__link:hover { color: var(--ink-strong); }
.nav__link:hover::after { transform: scaleX(1); transform-origin: left; }
.nav__link[aria-current="page"] { color: var(--ink-strong); }
.nav__link[aria-current="page"]::after { transform: scaleX(1); }
.nav__caret { width: .7rem; height: .7rem; transition: transform var(--dur-base) var(--ease-out-quint); }
.nav__item--has-panel:hover .nav__caret { transform: rotate(180deg); }

/* Mega panel */
.nav__item--has-panel { position: relative; }
.nav__panel {
  position: absolute;
  top: calc(100% + .55rem);
  left: 50%;
  translate: -50% 0;
  width: min(46rem, 78vw);
  padding: 1.35rem;
  border-radius: var(--r-l);
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-l);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px) scale(.985);
  transform-origin: top center;
  transition: opacity var(--dur-base) var(--ease-out-expo),
              transform var(--dur-base) var(--ease-out-expo),
              visibility var(--dur-base);
}
.nav__item--has-panel:hover .nav__panel,
.nav__item--has-panel:focus-within .nav__panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}
.nav__panel-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .35rem; }
.nav__panel-link {
  display: flex;
  align-items: flex-start;
  gap: .8rem;
  padding: .7rem .8rem;
  border-radius: var(--r-m);
  text-decoration: none;
  transition: background-color var(--dur-fast) var(--ease-out-quint);
}
.nav__panel-link:hover { background: var(--surface-sunk); color: inherit; }
.nav__panel-link i {
  display: grid;
  place-items: center;
  width: 2.1rem; height: 2.1rem;
  flex: none;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-style: normal;
  font-family: var(--font-accent);
  font-size: .78rem;
}
.nav__panel-link strong { display: block; font-size: var(--step--1); color: var(--ink-strong); font-weight: 700; }
.nav__panel-link span { display: block; font-size: var(--step--2); color: var(--ink-muted); line-height: 1.5; }
.nav__panel-foot {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

/* --------------------------------------------------------- Header actions */
.header__actions { display: flex; align-items: center; gap: .5rem; flex: none; }

/* Theme toggle */
.theme-toggle {
  position: relative;
  display: grid;
  place-items: center;
  width: 2.4rem; height: 2.4rem;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  overflow: hidden;
  transition: border-color var(--dur-base) var(--ease-out-quint),
              background-color var(--dur-base) var(--ease-out-quint),
              transform var(--dur-base) var(--ease-spring);
}
.theme-toggle:hover { border-color: var(--gold); color: var(--gold); transform: rotate(18deg); }
/* Both icons are stacked in the centre and cross-faded. The wrapper span
   needs to be a sized, positioned box in its own right - without that the
   svg inside it collapses and the button renders as an empty circle. */
.theme-toggle .i-sun,
.theme-toggle .i-moon {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  transition: transform var(--dur-slow) var(--ease-out-expo), opacity var(--dur-base) linear;
}
.theme-toggle svg { width: 1.1rem; height: 1.1rem; flex: none; }
.theme-toggle .i-sun  { transform: translateY(140%) rotate(70deg); opacity: 0; }
.theme-toggle .i-moon { transform: translateY(0) rotate(0); opacity: 1; }
[data-theme="dark"] .theme-toggle .i-sun  { transform: translateY(0) rotate(0); opacity: 1; }
[data-theme="dark"] .theme-toggle .i-moon { transform: translateY(-140%) rotate(-70deg); opacity: 0; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .i-sun  { transform: translateY(0) rotate(0); opacity: 1; }
  :root:not([data-theme="light"]) .theme-toggle .i-moon { transform: translateY(-140%) rotate(-70deg); opacity: 0; }
}

.header__cta { display: none; }

/* ------------------------------------------------------------- Hamburger */
.burger {
  display: grid;
  place-items: center;
  width: 2.6rem; height: 2.6rem;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
}
.burger__lines { position: relative; width: 1.1rem; height: .7rem; }
.burger__lines span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1.5px;
  background: currentColor;
  border-radius: 2px;
  transition: transform var(--dur-base) var(--ease-out-expo), opacity var(--dur-fast) linear, width var(--dur-base) var(--ease-out-expo);
}
.burger__lines span:nth-child(1) { top: 0; }
.burger__lines span:nth-child(2) { top: 50%; translate: 0 -50%; width: 72%; }
.burger__lines span:nth-child(3) { bottom: 0; }
.burger:hover .burger__lines span:nth-child(2) { width: 100%; }
.is-open .burger__lines span:nth-child(1) { transform: translateY(.35rem) rotate(45deg); }
.is-open .burger__lines span:nth-child(2) { opacity: 0; }
.is-open .burger__lines span:nth-child(3) { transform: translateY(-.35rem) rotate(-45deg); }

/* ---------------------------------------------------------- Mobile drawer */
.drawer {
  position: fixed;
  inset: 0;
  z-index: var(--z-drawer);
  display: flex;
  flex-direction: column;
  background: var(--bg);
  padding: calc(var(--header-h) + 1.5rem) var(--gutter) 2rem;
  overflow-y: auto;
  overscroll-behavior: contain;
  clip-path: inset(0 0 100% 0);
  visibility: hidden;
  transition: clip-path var(--dur-slow) var(--ease-out-expo), visibility var(--dur-slow);
}
.drawer.is-open { clip-path: inset(0 0 0 0); visibility: visible; }

.drawer__nav { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.drawer__nav li { border-bottom: 1px solid var(--line); overflow: hidden; }
.drawer__link {
  display: flex;
  align-items: baseline;
  gap: .9rem;
  padding: .85rem 0;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 8vw, 2.9rem);
  font-weight: 300;
  line-height: 1.1;
  color: var(--ink-strong);
  text-decoration: none;
  transform: translateY(110%);
  opacity: 0;
  transition: transform var(--dur-slow) var(--ease-out-expo), opacity var(--dur-slow) var(--ease-out-expo), color var(--dur-base) linear;
}
.drawer.is-open .drawer__link { transform: translateY(0); opacity: 1; }
.drawer__link:hover { color: var(--accent); }
.drawer__link[aria-current="page"] { color: var(--accent); }
.drawer__link em {
  font-family: var(--font-body);
  font-style: normal;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--gold);
}
.drawer__foot {
  margin-top: auto;
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--dur-slow) var(--ease-out-expo) 340ms, transform var(--dur-slow) var(--ease-out-expo) 340ms;
}
.drawer.is-open .drawer__foot { opacity: 1; transform: translateY(0); }
.drawer__socials { display: flex; gap: .6rem; }

body.is-locked { overflow: hidden; }

/* ------------------------------------------------- Sticky mobile CTA bar */
.mobile-bar {
  position: fixed;
  left: var(--gutter); right: var(--gutter);
  bottom: .85rem;
  z-index: 720;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: .3rem;
  padding: .35rem;
  border-radius: var(--r-pill);
  background: var(--glass);
  backdrop-filter: blur(20px) saturate(1.5);
  -webkit-backdrop-filter: blur(20px) saturate(1.5);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-l);
  transform: translateY(calc(100% + 1.5rem));
  transition: transform var(--dur-slow) var(--ease-out-expo);
}
.mobile-bar.is-visible { transform: translateY(0); }
.mobile-bar a {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  padding: .8rem .4rem;
  border-radius: var(--r-pill);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink-strong);
  transition: background-color var(--dur-base) var(--ease-out-quint), color var(--dur-base) var(--ease-out-quint);
}
.mobile-bar a svg { width: 1.05rem; height: 1.05rem; }
.mobile-bar a:hover { background: var(--surface-sunk); }
.mobile-bar a.is-primary { background: var(--accent); color: var(--accent-ink); }
.mobile-bar a.is-primary:hover { background: var(--gold); color: var(--brand-plum-900); }

/* ------------------------------------------------------------ Breakpoints */
@media (min-width: 1000px) {
  .nav { display: block; }
  .burger { display: none; }
  .header__cta { display: inline-flex; }
  .mobile-bar { display: none; }
  .drawer { display: none; }
}