/* ======================================
   HEADER ACTIONS
====================================== */

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* ======================================
   SHARED ICON BUTTON
====================================== */

.header-btn {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  color: var(--color-text-secondary);
  background: transparent;
  border: 0;
  border-radius: var(--radius);
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.header-btn:hover,
.header-btn:focus-visible,
.header-btn[aria-expanded="true"] {
  color: var(--color-link-hover);
  background-color: var(--color-bg-secondary);
}

.header-btn:focus-visible {
  outline: 2px solid var(--color-link-hover);
  outline-offset: 2px;
}

.header-btn svg {
  width: 2rem;
  height: 2rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.375;
  stroke-linecap: round;
  stroke-linejoin: round;
  pointer-events: none;
}

/* ======================================
   MAIN MENU BUTTON
====================================== */

.site-header__menu {
  position: relative;
}

.site-header__menu-button .bar {
  transform-box: fill-box;
  transform-origin: center;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.site-header__menu-button[aria-expanded="true"] .bar--top {
  transform: translateY(6px) rotate(45deg);
}

.site-header__menu-button[aria-expanded="true"] .bar--mid {
  opacity: 0;
}

.site-header__menu-button[aria-expanded="true"] .bar--bot {
  transform: translateY(-6px) rotate(-45deg);
}

/* ======================================
   MENU PANEL
====================================== */

.site-header__panel {
  /* Farben */
  --menu-bg: var(--color-bg-secondary);
  --menu-hover-bg: rgba(0, 0, 0, 0.06);

  /* Einheitliches Abstandssystem für das komplette Panel */
  --menu-space: 0.5rem;              /* Panelrand, Trennlinien, Abstände */
  --menu-item-padding: 0.5rem 1rem;  /* Zeilen: Links + Theme-Toggle */
  --menu-item-radius: 6px;           /* alle inneren Elemente */
  --menu-icon-gap: 0.55rem;          /* Icon ↔ Text (wie base.css) */
  --menu-buttons-space: 1rem;        /* Luft über/unter den A-Buttons */

  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 10;
  min-width: 15.5rem;
  padding: var(--menu-space);

  display: flex;
  flex-direction: column;

  background-color: var(--menu-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.04em;

  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  pointer-events: none;

  transition:
    opacity 0.25s ease,
    transform 0.25s ease,
    visibility 0.25s;
}

html.dark .site-header__panel {
  --menu-hover-bg: rgba(255, 255, 255, 0.05);
}

.site-header__panel.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

/* ======================================
   MENU ROWS (Links + Theme-Toggle)
====================================== */

.site-header__nav {
  display: flex;
  flex-direction: column;
}

.site-header__nav a,
.theme-toggle {
  width: 100%;
  padding: var(--menu-item-padding);
  display: flex;
  align-items: center;
  gap: var(--menu-icon-gap);
  color: var(--color-text);
  background-color: transparent;
  border: 0;
  border-radius: var(--menu-item-radius);
  text-decoration: none;
  transition:
    color 0.2s ease,
    background-color 0.2s ease;
}

.site-header__nav a:hover,
.site-header__nav a:focus-visible,
.theme-toggle:hover,
.theme-toggle:focus-visible {
  color: var(--color-link-hover);
  background-color: var(--menu-hover-bg);
  text-decoration: none;
}

/* ======================================
   TRENNLINIEN (einheitlich)
====================================== */

.site-header__settings,
.font-size-buttons {
  margin-top: var(--menu-space);
  padding-top: var(--menu-space);
  border-top: 1px solid var(--color-border);
}

/* ======================================
   DISPLAY SETTINGS
====================================== */

.site-header__settings {
  display: flex;
  flex-direction: column;
}

/* ======================================
   THEME TOGGLE
====================================== */

.theme-toggle {
  --theme-sun: #f2d675;
  --theme-moon: #c47a24;

  font: inherit;
  text-align: left;
  cursor: pointer;
}

.theme-toggle__icon {
  width: 1rem;
  height: 1rem;
  flex: 0 0 1rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  pointer-events: none;
}

.theme-toggle__icon--sun {
  color: var(--theme-sun);
}

.theme-toggle__icon--moon {
  color: var(--theme-moon);
}

/* Light Mode (Standard): Mond + "Dark Mode" */

.theme-toggle__icon--sun,
.theme-toggle__label--light {
  display: none;
}

/* Dark Mode: Sonne + "Light Mode" */

html.dark .theme-toggle__icon--sun {
  display: block;
}

html.dark .theme-toggle__label--light {
  display: inline;
}

html.dark .theme-toggle__icon--moon,
html.dark .theme-toggle__label--dark {
  display: none;
}

/* ======================================
   FONT SIZE BUTTONS
====================================== */

.font-size-buttons {
  /* überschreibt das padding-top der Trennlinien-Regel:
     mehr Luft über und unter den Buttons */
  padding-top: var(--menu-buttons-space);
  padding-bottom: calc(var(--menu-buttons-space) - var(--menu-space));
  display: flex;
  gap: var(--menu-space);
}

.font-size-buttons button {
  flex: 1;
  min-width: 0;
  height: 2rem;
  padding: 0 0.5rem;
  color: var(--color-text);
  background-color: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--menu-item-radius);
  font: inherit;
  letter-spacing: normal;
  cursor: pointer;
  transition:
    color 0.2s ease,
    border-color 0.2s ease,
    background-color 0.2s ease;
}

.font-size-buttons button:not(.active):hover,
.font-size-buttons button:not(.active):focus-visible {
  color: var(--color-link-hover);
  background-color: var(--menu-hover-bg);
  border-color: var(--color-link-hover);
}

.font-size-buttons button.active {
  color: var(--color-link);
  border-color: var(--color-link);
  cursor: default;
}


/* ======================================
   MOBILE
====================================== */

@media (max-width: 860px) {
  .site-header__actions {
    gap: 0.75rem;
  }
}

@media (max-width: 600px) {
  .site-header__actions {
    gap: 0.4rem;
  }
}