/* Copyright (c) We Decide Canada
 * File: header.css
 * Purpose: Styles for the shared site header (logo, auth buttons, menu button).
 * Requires: global_theme.css for color variables and base typography.
 */

.site_header {
  background: var(--color-bg);
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);

  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1200;
}

.site_header__inner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 12px;
  padding-bottom: 12px;
}

.site_header__logo_link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.site_header__logo {
  display: block;
  height: 44px;
  width: auto;
  max-width: 100%;
  margin-left: 16px;
}

/* Theme-switched logos */
.site_header__logo--light { display: none; }
html[data-theme="light"] .site_header__logo--dark { display: none; }
html[data-theme="light"] .site_header__logo--light { display: block; }

/* Mobile: swap to "no text" logos to save space */
.site_header__logo--dark_notext,
.site_header__logo--light_notext {
  display: none;
  height: 36px;
  width: auto;
  max-width: 100%;
  margin-left: 16px;
}

@media (min-width: 641px) {
  .site_header__logo--dark_notext,
  .site_header__logo--light_notext {
    display: none !important;
  }
}

@media (max-width: 640px) {
  .site_header__logo--dark,
  .site_header__logo--light {
    display: none !important;
  }

  html:not([data-theme="light"]) .site_header__logo--dark_notext { display: block; }
  html[data-theme="light"] .site_header__logo--light_notext { display: block; }

  .site_header__logo--dark_notext,
  .site_header__logo--light_notext {
    height: 36px;
  }
}

.site_header__spacer {
  flex: 1 1 auto;
  min-width: 0;
}

.site_header__actions {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.site_header__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 12px;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  background: transparent;
  text-decoration: none;

  text-align: center;
  white-space: nowrap;

  font-weight: 400;
  text-transform: none;
}

.site_header__btn:hover,
.site_header__btn:focus {
  text-decoration: none;
  border-color: var(--color-primary);
}

/* Settings dropdown anchor (used for contains() checks) */
.site_header__settings_wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
}

/* Theme / Settings buttons */
.site_header__theme_btn,
.site_header__settings_btn,
.site_header__icon_btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  width: 44px;
  padding: 0;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
  position: relative;
  font: inherit;
}

.site_header__theme_icon,
.site_header__settings_icon,
.site_header__icon_img,
.site_header__menu_icon {
  display: block;
  width: 18px;
  height: 18px;
  filter: var(--theme_icon_filter_default);
}

.site_header__theme_icon--moon { display: none; }
.site_header__theme_icon--sun { display: block; }

html[data-theme="light"] .site_header__theme_icon--moon { display: block; }
html[data-theme="light"] .site_header__theme_icon--sun { display: none; }

/* Hover/focus border highlight, but no icon recolor */
.site_header__theme_btn:hover,
.site_header__theme_btn:focus-visible,
.site_header__settings_btn:hover,
.site_header__settings_btn:focus-visible,
.site_header__icon_btn:hover,
.site_header__icon_btn:focus-visible {
  border-color: var(--color-primary);
  outline: none;
}

.site_header__theme_btn:hover .site_header__theme_icon,
.site_header__theme_btn:focus-visible .site_header__theme_icon,
.site_header__settings_btn:hover .site_header__settings_icon,
.site_header__settings_btn:focus-visible .site_header__settings_icon,
.site_header__icon_btn:hover .site_header__icon_img,
.site_header__icon_btn:focus-visible .site_header__icon_img {
  filter: var(--theme_icon_filter_default);
}

/* Language button: keep text color steady on hover/focus */
.site_header__icon_btn#site_lang_btn {
  color: var(--color-text);
}

.site_header__icon_btn#site_lang_btn:hover,
.site_header__icon_btn#site_lang_btn:focus-visible {
  color: var(--color-text);
}

/* TTS active */
.site_header__icon_btn#site_tts_btn[aria-pressed="true"] {
  border-color: var(--color-primary);
}

.site_header__icon_btn#site_tts_btn[aria-pressed="true"] .site_header__icon_img {
  filter: var(--theme_icon_filter_hover);
}

/* Gear button active */
.site_header__settings_btn[aria-pressed="true"] {
  border-color: var(--color-primary);
}

.site_header__settings_btn[aria-pressed="true"] .site_header__settings_icon {
  filter: var(--theme_icon_filter_hover);
}

/* Dropdown overlay:
   Use position: fixed so it can sit ABOVE modals/backdrops regardless of header stacking contexts.
   JS will set top/left. */
.site_header__settings_dropdown {
  position: fixed;

  /* JS sets top/left; keep a harmless fallback */
  top: 0;
  left: 0;

  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;

  padding: 8px;
  display: none;
  flex-direction: column;
  gap: 10px;

  /* Must sit above modals (auth_modal.css uses 1300) and their backdrops */
  z-index: 4000;

  /* Ensure clicks work even if other overlays use unusual pointer-events rules */
  pointer-events: auto;
}

.site_header__settings_dropdown.is-open {
  display: flex;
}

/* Menu button */
.site_header__menu_btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  width: 44px;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
  position: relative;
  margin-right: 16px;
  padding: 0;
}

.site_header__menu_btn::before,
.site_header__menu_btn::after {
  content: none;
}

.site_header__menu_icon--close { display: none; }
.site_header__menu_btn[aria-expanded="true"] .site_header__menu_icon--open { display: none; }
.site_header__menu_btn[aria-expanded="true"] .site_header__menu_icon--close { display: block; }

.site_header__menu_btn[aria-expanded="false"] {
  border-color: var(--color-border);
}

.site_header__menu_btn[aria-expanded="true"] {
  border-color: var(--color-primary);
}

.site_header__menu_btn:hover,
.site_header__menu_btn:focus-visible {
  border-color: var(--color-primary);
  outline: none;
}

.site_header__menu_btn:hover .site_header__menu_icon,
.site_header__menu_btn:focus-visible .site_header__menu_icon {
  filter: var(--theme_icon_filter_default);
}

.site_header__menu_btn[aria-expanded="true"] .site_header__menu_icon {
  filter: var(--theme_icon_filter_hover);
}

/* Menu overlay */
.site_menu_overlay {
  position: fixed;
  left: 0;
  right: 0;

  top: var(--site-header-offset);
  bottom: 0;

  z-index: 1150;

  display: none;
}

.site_menu_overlay.is-open {
  display: block;
}

.site_menu_overlay__backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  padding: 0;
  background: rgba(0, 0, 0, 0.65);
  cursor: pointer;
}

html[data-theme="light"] .site_menu_overlay__backdrop {
  background: rgba(242, 242, 242, 0.92);
}

.site_menu_panel {
  position: absolute;
  inset: 0;
  background: transparent;
  overflow: auto;
  z-index: 1;
  pointer-events: none;
}

.site_menu_panel__inner {
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 100%;
  box-sizing: border-box;
  pointer-events: auto;
}

.site_menu_link,
.site_menu_btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 56px;
  padding: 0 16px;
  box-sizing: border-box;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text);
  text-decoration: none;
  font-weight: 400;
  font-size: 1.125rem;
  line-height: 1;
  text-align: center;
}

.site_menu_link:link,
.site_menu_link:visited {
  color: var(--color-text);
  text-decoration: none;
}

.site_menu_link:hover,
.site_menu_link:focus,
.site_menu_link:focus-visible,
.site_menu_link:active {
  color: var(--color-primary);
  text-decoration: none;
}

.site_menu_link[aria-disabled="true"] {
  opacity: 0.9;
  cursor: not-allowed;
}

.site_menu_link:hover,
.site_menu_link:focus-visible,
.site_menu_btn:hover,
.site_menu_btn:focus-visible {
  border-color: var(--color-primary);
  outline: none;
}

@media (max-width: 640px) {
  .site_header__inner { gap: 10px; }
  .site_header__actions { gap: 8px; }

  .site_menu_link,
  .site_menu_btn {
    height: 54px;
    font-size: 1.0625rem;
  }
}