#main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: auto;
  z-index: 10000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  padding-bottom: 1rem;
  padding-left: 2px;
  padding-right: 2px;
  background: transparent;
  backdrop-filter: blur(0px);
  box-shadow: none;
  transition: background 820ms ease, backdrop-filter 820ms ease, box-shadow 820ms ease;
  overflow: visible;
}

#main-header[data-static-header="true"] {
  position: relative;
  top: auto;
  left: auto;
}

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

input[type="number"] {
  appearance: textfield;
  -moz-appearance: textfield;
}


#main-header::before {
  content: none;
}

#main-header.header-scrolled {
  background: linear-gradient(135deg, color-mix(in srgb, var(--primary) 85%, transparent) 0%, color-mix(in srgb, var(--tertiary) 85%, transparent) 100%);
  backdrop-filter: blur(20px);
  box-shadow: 0 10px 30px rgba(7, 38, 38, 0.18);
}

#main-header[data-home-header="true"].header-idle {
  background-color: transparent;
  backdrop-filter: blur(0px);
  box-shadow: none;
}

#main-header > * {
  position: relative;
  z-index: 1;
}

#main-header [data-header-wordmark] {
  opacity: 0;
  transform: translateY(-6px) scale(0.98);
  transition: opacity 820ms ease, transform 820ms ease;
}

#main-header [data-header-wordmark].header-logo-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* ============================================================
   PANEL ENTRANCE ANIMATIONS
   ============================================================ */

@keyframes panelDropDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes panelSlideFromLeft {
  from { transform: translateX(-100%); }
  to   { transform: translateX(0); }
}

@keyframes panelOverlayFadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.panel-drop-enter {
  animation: panelDropDown 210ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

.panel-slide-enter {
  animation: panelSlideFromLeft 300ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

.panel-overlay-enter {
  animation: panelOverlayFadeIn 250ms ease both;
}

@keyframes panelSlideToLeft {
  from { transform: translateX(0); }
  to   { transform: translateX(-100%); }
}

@keyframes panelOverlayFadeOut {
  from { opacity: 1; }
  to   { opacity: 0; }
}

.panel-slide-exit {
  animation: panelSlideToLeft 260ms cubic-bezier(0.4, 0, 1, 1) both;
}

.panel-overlay-exit {
  animation: panelOverlayFadeOut 220ms ease both;
}

/* Right-anchored slide (used by the user/profile panel on mobile/tablet) */
@keyframes panelSlideFromRight {
  from { transform: translateX(100%); }
  to   { transform: translateX(0); }
}

@keyframes panelSlideToRight {
  from { transform: translateX(0); }
  to   { transform: translateX(100%); }
}

.panel-slide-right-enter {
  animation: panelSlideFromRight 300ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

.panel-slide-right-exit {
  animation: panelSlideToRight 260ms cubic-bezier(0.4, 0, 1, 1) both;
}


/* Language switcher dropdown — replays each time it is un-hidden */
#lang-menu:not(.hidden) {
  transform-origin: top right;
  animation: panelDropDown 180ms cubic-bezier(0.16, 1, 0.3, 1) both;
}


.search-flyout {
  width: 0;
  opacity: 0;
  overflow: hidden;
  visibility: hidden;
  pointer-events: none;
  transition: width 300ms cubic-bezier(0.16, 1, 0.3, 1),
              opacity 200ms ease,
              visibility 0s linear 300ms;
}

.search-flyout.is-open {
  width: 18rem;
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition: width 300ms cubic-bezier(0.16, 1, 0.3, 1),
              opacity 200ms ease,
              visibility 0s linear 0s;
}