/* ═══════════════════════════════════════════════════
   ICMR-NIIRNCD Header Stylesheet
   File: header.css
   ═══════════════════════════════════════════════════ */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ─── CSS VARIABLES ─── */
:root {
  --navy:      #003679;
  --navy-dk:   #002254;
  --gold:      #F15A24;
  --gold-lt:   #e8b84b;
  --cream:     #f8f5ef;
  --mid:       #e9ecf3;
  --text:      #2c2c2c;
  --muted:     #666;
  --white:     #ffffff;
  --radius:    6px;
  --trans:     0.25s ease;

  /* Nav height token — change this one value to resize the navbar */
  --nav-height: 58px;
}

body {
  font-family: 'Source Sans 3', sans-serif;
  color: var(--text);
}

/* ════════════════════════════════
   TOP UTILITY BAR
   ════════════════════════════════ */
/* Font-size buttons */
.font-btns {
  display: flex;
  gap: 4px;
}

.font-btns button {
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .2);
  color: var(--white);
  cursor: pointer;
  border-radius: 3px;
  padding: 2px 7px;
  font-family: inherit;
  transition: var(--trans);
  font-size: 0.75rem;
}

.font-btns button:hover {
  background: var(--gold);
  border-color: var(--gold);
}

/* Language select */
.lang-select {
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .2);
  color: var(--white);
  border-radius: 3px;
  padding: 2px 6px;
  font-size: 0.78rem;
  cursor: pointer;
}

.lang-select option {
  background: var(--navy-dk);
  color: var(--white);
}

/* ════════════════════════════════
   BRAND / IDENTITY STRIP
   ════════════════════════════════ */
.brand-strip {
  background: var(--white);
  border-bottom: 3px solid var(--gold);
}

.brand-inner {
  max-width: 1280px;
  margin: auto;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 20px;
}

.brand-logo img {
  display: block;
  object-fit: contain;
}

.brand-logo .logo-fallback {
  display: none;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  background: var(--navy);
  border-radius: 50%;
  color: var(--white);
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: .05em;
}

.brand-text {
  text-align: right;
}

.brand-text h1 {
  font-family: 'Noto Sans Devanagari', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.35;
  margin: 0;
}

.brand-text h2 {
  font-size: 17px;
  font-weight: 600;
  color: var(--gold);
  margin: 0;
  font-weight: 700;
}

.brand-logos {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logos img {
  height: 66px;
  display: block;
  object-fit: contain;
}

/* ════════════════════════════════
   NAVBAR WRAPPER
   ════════════════════════════════ */
.navbar-wrap {
  background: var(--navy);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 3px 16px rgba(0, 0, 0, .38);
  /* Subtle inner top highlight for depth */
  border-top: 1px solid rgba(255, 255, 255, .08);
}

.navbar-inner {
  max-width: 1280px;
  margin: auto;
  display: flex;
  align-items: stretch;
  justify-content: center;   /* better alignment */
  padding: 0 1rem;
  min-height: var(--nav-height);
  overflow: visible;
}

/* ════════════════════════════════
   NAV LIST  (desktop)
   ════════════════════════════════ */
.nav-list {
  display: flex;
  list-style: none;
  align-items: stretch;
  flex-wrap: wrap;      /* allow wrapping */
  overflow: visible;
}

.nav-list > li {
  position: relative;
  display: flex;
  align-items: stretch;
}

.nav-list > li > a {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #fff;
  padding: 0 18px;
  font-family: 'Rajdhani', sans-serif;
  font-size: 1rem;
  font-weight: bolder;
  letter-spacing: .045em;
  border-bottom: 3px solid transparent;
  transition: var(--trans);
  white-space: nowrap;
}

.nav-list > li > a .caret {
  font-size: 0.58rem;
  opacity: .55;
  transition: transform var(--trans);
  margin-top: 1px;
}

.nav-list > li:hover > a,
.nav-list > li > a:focus-visible {
  color: var(--white);
  border-bottom-color: var(--gold);
  background: rgba(255, 255, 255, .07);
}

.nav-list > li:hover > a .caret {
  transform: rotate(180deg);
  opacity: 1;
}

/* ════════════════════════════════
   DROPDOWN MENUS
   ════════════════════════════════ */
.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--white);
  border-top: 3px solid var(--gold);
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: 0 10px 32px rgba(0, 0, 0, .18);
  list-style: none;
  min-width: 175px;
  /* width: 260px;
  max-width: 90vw; */
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--trans), transform var(--trans), visibility var(--trans);
  z-index: 200;
}

.nav-list > li:hover .dropdown,
.nav-list > li:focus-within .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown li a {
  display: block;
  padding: 10px 18px;
  color: var(--text);
  text-decoration: none;
  font-size: 0.875rem;
  border-left: 3px solid transparent;
  transition: var(--trans);
  line-height: 1.4;
}

.dropdown li a:hover {
  background: var(--mid);
  color: var(--navy);
  border-left-color: var(--gold);
  padding-left: 23px;
}

.dropdown li + li {
  border-top: 1px solid #eee;
}

/* ════════════════════════════════
   NAV RIGHT BADGE
   ════════════════════════════════ */
.nav-badge {
  display: flex;
  align-items: center;
  padding: 0 16px;
  color: var(--gold-lt);
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  font-size: 0.84rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  border-left: 1px solid rgba(255, 255, 255, .12);
  white-space: nowrap;
  gap: 6px;
}

/* ════════════════════════════════
   HAMBURGER BUTTON (hidden desktop)
   ════════════════════════════════ */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 12px 6px;
}

.hamburger span {
  display: block;
  width: 25px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--trans);
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; width: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ════════════════════════════════
   MOBILE OVERLAY
   ════════════════════════════════ */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .52);
  z-index: 998;
  display: none;
  backdrop-filter: blur(2px);
}

.overlay.show {
  display: block;
}

/* ════════════════════════════════
   RESPONSIVE — TABLET & MOBILE
   ════════════════════════════════ */
@media (max-width: 900px) {

  .hamburger {
    display: flex;
  }

  /* Slide-in drawer */
  .nav-list {
    position: fixed;
    top: 0;
    left: 0;
    width: 285px;
    height: 100dvh;
    background: var(--navy-dk);
    flex-direction: column;
    align-items: stretch;
    padding: 64px 0 24px;
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform 0.32s cubic-bezier(.4, 0, .2, 1);
    z-index: 999;
    /* Scrollbar styling */
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,.2) transparent;
  }

  .nav-list::-webkit-scrollbar { width: 4px; }
  .nav-list::-webkit-scrollbar-thumb { background: rgba(255,255,255,.2); border-radius: 4px; }

  .nav-list.open {
    transform: translateX(0);
  }

  .nav-list > li {
    flex-direction: column;
    align-items: stretch;
  }

  .nav-list > li > a {
    padding: 13px 22px;
    border-bottom: 1px solid rgba(255, 255, 255, .07);
    border-left: 3px solid transparent;
    font-size: 1rem;
    gap: 8px;
  }

  .nav-list > li > a:hover,
  .nav-list > li.mob-open > a {
    background: rgba(255, 255, 255, .08);
    border-left-color: var(--gold);
    border-bottom-color: rgba(255, 255, 255, .07);
  }

  /* Mobile dropdown — collapses inline */
  .dropdown {
    position: static;
    opacity: 1 !important;
    visibility: visible !important;
    transform: none !important;
    box-shadow: none;
    border-top: none;
    border-left: 3px solid var(--gold);
    background: rgba(0, 0, 0, .22);
    border-radius: 0;
    display: none;
    min-width: 0;
    max-width: 100%;
  }

  .nav-list > li.mob-open .dropdown {
    display: block;
  }

  .dropdown li a {
    color: rgba(255, 255, 255, .76);
    padding: 10px 34px;
    font-size: 0.875rem;
  }

  .dropdown li a:hover {
    color: var(--white);
    background: rgba(255, 255, 255, .06);
    border-left-color: transparent;
    padding-left: 34px;
  }

  .dropdown li + li {
    border-top-color: rgba(255, 255, 255, .07);
  }

  .nav-badge {
    display: none;
  }
}

/* ─── SMALL TABLETS / LARGE PHONES ─── */
@media (max-width: 640px) {
  .brand-inner {
    grid-template-columns: auto 1fr;
  }

  .brand-logos {
    display: none;
  }

  .brand-text h1 {
    font-size: clamp(0.82rem, 4vw, 1rem);
  }

  .brand-text h2 {
    font-size: clamp(0.68rem, 3vw, 0.88rem);
  }

  .brand-logo img {
    height: 56px;
  }

}

/* ─── SMALL PHONES ─── */
@media (max-width: 400px) {
  .brand-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .brand-logo {
    display: flex;
    justify-content: center;
  }
}

/* MAIN */
.top-bar {
  position: fixed;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  z-index: 9999;
}

/* CONTAINER */
.top-bar-inner {
  position: relative;
}

/* TOGGLE BUTTON (ALWAYS VISIBLE) */
.toggle-btn {
  width: 60px;
  height: 75px;
  background: #F15A24;
  display: grid;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 18px;
  color: #fff;
  border-radius: 10px 0 0 10px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  z-index: 2;
}

.toggle-btn .fa {
  font-size: x-large;
}

/* PANEL (HIDDEN BY DEFAULT) */
.top-bar-right {
  position: absolute;
  right: 60px; /* sits behind button */
  background: linear-gradient(180deg, #002254, #003669);
  padding: 12px;
  border-radius: 10px 0 0 10px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.25);

  opacity: 0;
  pointer-events: none;
  transform: translateX(20px);
  transition: 0.3s ease;
}

/* SHOW PANEL */
.top-bar-inner.open .top-bar-right {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0);
}

/* CONTENT */
.font-btns {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 10px;
  align-items: center;
}

.font-btns button {
  width: 36px;
  height: 32px;
  border: none;
  border-radius: 8px;
  background: rgba(255,255,255,0.12);
  color: #fff;
  font-size: 13px;
  cursor: pointer;
}

.font-btns button:hover {
  background: #C8922A;
}

.lang-select {
  font-size: 12px;
  border-radius: 6px;
  border: none;
  padding: 5px;
}


/* ═══════════════════════════════════════════
   TOP UTILITY BAR
═══════════════════════════════════════════ */
.top-bar { font-size: .78rem; }
.top-bar-inner {
  max-width: 1320px; margin: auto;
  display: flex; align-items: center; justify-content: space-between;
  min-height: 34px; flex-wrap: wrap; gap: 4px;
}
.top-bar-left { display: flex; align-items: center; gap: 2px; flex-wrap: wrap; }
.top-bar-left a {
  color: rgba(255,255,255,.72); text-decoration: none;
  padding: 3px 9px; border-radius: 3px; transition: var(--t);
}
.top-bar-left a:hover { color: var(--gold-lt); background: rgba(255,255,255,.08); }
.top-bar-left span { color: rgba(255,255,255,.28); }
.top-bar-right {align-items: center; gap: 10px; }
.font-btns { display: flex; gap: 3px; }
.font-btns button {
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.18);
  color: #fff; cursor: pointer; border-radius: 3px; padding: 2px 8px;
  font-size: .73rem; font-family: inherit; transition: var(--t);
}
.font-btns button:hover { background: var(--gold); border-color: var(--gold); }
.lang-sel {
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.2);
  color: #fff; border-radius: 3px; padding: 2px 6px; font-size: .76rem; cursor: pointer;
}
.lang-sel option { background: var(--navy-dk); }