/* =========================
   HEADER BASE
========================= */

.qh-header {
  position: sticky;
  top: 0;
  z-index: 1050;
  width: 100%;

  height: 70px;

  background: var(--qh-surface);
  backdrop-filter: blur(12px);

  border-bottom: 1px solid var(--qh-border);
}

/* scroll effect */
.qh-header.scrolled {
  box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

/* =========================
   BRAND
========================= */

.qh-header .navbar-brand {
  font-weight: 700;
  color: var(--qh-text) !important;
  transition: 0.3s ease;
}

.qh-header .navbar-brand:hover {
  transform: translateY(-1px);
}

/* =========================
   NAV LINKS
========================= */

.qh-header .nav-link {
  position: relative;
  color: var(--qh-text) !important;
  font-weight: 500;
  font-size: var(--qh-font-xs);
  padding: 10px 12px;
  transition: 0.25s ease;
}

.qh-header .nav-link:hover {
  color: var(--qh-primary) !important;
}

/* underline */
.qh-header .nav-link::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 6px;
  height: 2px;
  background: var(--qh-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: 0.25s ease;
}

.qh-header .nav-link:hover::after {
  transform: scaleX(1);
}

/* =========================
   ACTIVE STATE
========================= */

.qh-nav-active {
  background: var(--qh-activeback);
  color: var(--qh-active) !important;
  border-radius: 30px;
  font-weight: 600;
}

/* =========================
   DROPDOWN
========================= */

.qh-header .dropdown-menu {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  border: 1px solid var(--qh-border);
  border-radius: 14px;
  padding: 10px;
  z-index: 2000;
}

.dark-mode .qh-header .dropdown-menu {
  background: rgba(15,23,42,0.95);
}

.qh-header .dropdown-item {
  color: var(--qh-text);
  border-radius: 10px;
}

.qh-header .dropdown-item:hover {
  background: rgba(37,99,235,0.08);
}

/* =========================
   TOGGLER (FIXED)
========================= */

.navbar-toggler {
  border: none;
  background: transparent;
  z-index: 1100;
}

.navbar-toggler span {
  width: 24px;
  height: 2px;
  background: var(--qh-text);
  display: block;
  margin: 5px auto;
  transition: 0.3s;
}
.qh-sidebar-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;

    padding: 12px 16px;
    border: 1px solid var(--qh-border, #e5e7eb);
    border-radius: 10px;

    background: var(--qh-surface, #fff);
    color: var(--qh-text, #111);

    font-size: 15px;
    font-weight: 600;

    cursor: pointer;
    transition: all 0.25s ease;

    box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}

/* Hover effect */
.qh-sidebar-toggle:hover {
    background: var(--qh-primary, #2563eb);
    color: #fff;
    border-color: var(--qh-primary, #2563eb);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.2);
}

/* Active / expanded state (Bootstrap adds .collapsed toggle behavior) */
.qh-sidebar-toggle[aria-expanded="true"] {
    background: var(--qh-primary, #2563eb);
    color: #fff;
    border-color: var(--qh-primary, #2563eb);
}

/* Icon styling */
.qh-sidebar-toggle i {
    font-size: 18px;
    transition: transform 0.3s ease;
}

/* Rotate icon when expanded */
.qh-sidebar-toggle[aria-expanded="true"] i {
    transform: rotate(180deg);
}

/* Mobile polish */
@media (max-width: 991px) {
    .qh-sidebar-toggle {
        border-radius: 12px;
        font-size: 14px;
        padding: 14px;
    }
}
/* animation */
.navbar-toggler[aria-expanded="true"] span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.navbar-toggler[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.navbar-toggler[aria-expanded="true"] span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* =========================
   NAV CONTAINER FIX
========================= */

.navbar {
  position: relative; /* IMPORTANT FIX */
}

/* =========================
   COLLAPSE MENU (MOBILE)
========================= */

@media (max-width: 991px) {

  .qh-header .navbar-collapse {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;

    background: var(--qh-surface);
    border-top: 1px solid var(--qh-border);

    padding: 16px;
    z-index: 1040;
  }

  .qh-header .navbar-nav {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
  }

  .qh-header .nav-link {
    width: 100%;
    padding: 12px;
  }
}

/* =========================
   SEARCH DROPDOWN FIX
========================= */

#qhSearch {
  position: absolute;
  top: 110%;
  right: 0;
  width: 320px;
  z-index: 3;
}
.navbar-collapse {
  transition: all 0.3s ease;
}

.navbar-collapse.collapsing {
  height: 0;
  overflow: hidden;
}

.navbar-collapse.show {
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}
@media (max-width: 991px) {

  .qh-header .navbar-collapse {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;

    background: var(--qh-surface);
    border-top: 1px solid var(--qh-border);

    padding: 16px;
    z-index: 1040;
  }

  .qh-header .navbar-nav {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
  }

  .qh-header .nav-link {
    width: 100%;
    padding: 12px;
  }
}
.theme-btn {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    transition: 0.2s ease;
}

.theme-btn i {
    font-size: 18px;
    transition: transform 0.2s ease;
}

.theme-btn:hover i {
    transform: scale(1.1);
}