/* /css/nav.css – Überarbeitete Version (bereinigt, konfliktarm)
   =========================================================
   German Foundation Coin (GFC)
   Hauptnavigation – Klarheit, Ruhe, Professionalität
   - Keine Container-/Breiten-Overrides
   - Mobile Dropdown via data-Attribute
   - Hardening: min-width:0 + overflow-safety + robustes Dropdown
   - Safety-Mode: px -> rem 1:1 (16px Basis), Verhalten bleibt unverändert
   ========================================================= */

/* ---------- Basisstruktur ---------- */
.site-nav {
  display: block;
  justify-self: center;
  inline-size: 100%;
}

/* Header-Burger im index.html komplett ausblenden –
   nur der Button im nav-Partial wird genutzt */
.site-header > .nav-toggle {
  display: none;
}

/* ---------- Nav-Liste (legacy class) ---------- */
.nav-list {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem; /* 12px */
  list-style: none;
  margin: 0;
  padding: 0;
  min-width: 0;
}

.nav-list > li { min-width: 0; }

/* ---------- Nav-Links ---------- */
.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem; /* 8px */

  padding: 0.625rem 1rem; /* 10px 16px */
  font-weight: 700;
  font-size: 0.95rem;

  color: var(--ink);
  text-decoration: none;

  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-2);

  transition:
    background-color 0.15s ease,
    border-color 0.15s ease,
    color 0.15s ease,
    box-shadow 0.15s ease,
    transform 0.15s ease;

  will-change: background, transform;

  /* Hardening */
  min-width: 0;
  max-width: 100%;
}

/* Hover / Fokus */
.nav-link:hover {
  background-color: var(--surface);
  border-color: var(--border-strong);
}

.nav-link:focus-visible {
  outline: 0.125rem solid var(--accent); /* 2px */
  outline-offset: 0.1875rem;            /* 3px */
  border-color: var(--accent);
}

/* ---------- Aktive / starke Zustände ---------- */
.nav-link.is-active,
.nav-link[aria-current="true"],
.nav-link[aria-current="page"],
.nav-link.strong {
  background: linear-gradient(180deg, var(--accent), #89d8ff);
  color: var(--accent-ink);
  border-color: transparent;
  box-shadow: 0 0.375rem 1.125rem rgba(92,200,255,0.35); /* 6px 18px */
}

.nav-link.strong:hover {
  transform: translateY(-0.0625rem); /* -1px */
}

/* CTA etwas stärker hervorheben */
.nav-link.strong.highlight {
  padding-inline: 1.25rem; /* 20px */
  box-shadow: 0 0.5rem 1.375rem rgba(92,200,255,0.45); /* 8px 22px */
  transform: translateY(-0.0625rem); /* -1px */
}

.nav-link.strong.highlight:hover {
  transform: translateY(-0.125rem); /* -2px */
}

/* ---------- Separator ---------- */
.sep {
  inline-size: 1px;
  block-size: 1.375rem; /* 22px */
  background: var(--border);
  margin-inline: 0.375rem; /* 6px */
}

/* ---------- Motion Preferences ---------- */
@media (prefers-reduced-motion: reduce) {
  .nav-link { transition: none; }
}

/* =========================================================
   NAVIGATION / HEADER – Branding & Logo
   ========================================================= */
.logo-large {
  height: var(--header-logo-h, 7.25rem); /* 116px */
  width: auto;
  display: block;
  transition: transform 0.25s ease, opacity 0.25s ease;
  filter: drop-shadow(0 0.375rem 0.875rem rgba(0,0,0,0.28)); /* 6px 14px */
}

.logo-large:hover {
  transform: scale(1.04);
  opacity: 0.96;
}

/* Light/Dark Mode Logo-Shadow */
@media (prefers-color-scheme: light) {
  .logo-large {
    filter: drop-shadow(0 0.1875rem 0.375rem rgba(0,0,0,0.15)) /* 3px 6px */
            brightness(1.05)
            contrast(1.1);
  }
}

@media (prefers-color-scheme: dark) {
  .logo-large {
    filter: drop-shadow(0 0.1875rem 0.5rem rgba(255,255,255,0.1)) /* 3px 8px */
            brightness(1.15)
            contrast(1.1);
  }
}

/* Mini-Brandmark */
.favicon-mark {
  display: inline-block;
  width: 2rem;  /* 32px */
  height: 2rem; /* 32px */
  border-radius: 50%;
  background: url("/assets/favicon/favicon-32.png") center/cover no-repeat;
  vertical-align: middle;
}

/* =========================================================
   Mobile Dropdown Navigation (data-attribute based)
   ========================================================= */

/* Grund-Layout */
[data-nav-root] {
  position: relative;
  z-index: 200; /* über dem restlichen Inhalt */
}

/* Button allgemein – wird über data-nav-toggle auf Mobile aktiviert */
[data-nav-toggle] { display: none; }

/* Icon-Button (drei Balken) */
.nav-toggle {
  border: none;
  background: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;

  padding: 0.35rem 0.6rem;
  border-radius: 999px;
  cursor: pointer;

  color: var(--nav-toggle-ink, var(--text, #ffffff));
}

.nav-toggle:focus-visible {
  outline: 0.125rem solid var(--accent); /* 2px */
  outline-offset: 0.1875rem;            /* 3px */
}

.nav-toggle-box {
  display: inline-flex;
  flex-direction: column;
  gap: 0.18rem;
}

.nav-toggle-bar {
  width: 1.4rem;
  height: 0.1375rem; /* 2.2px */
  border-radius: 999px;
  background-color: currentColor;
  opacity: 1;
}

/* Desktop-Nav-Liste (Standard, via data attributes) */
[data-nav-root] [data-nav-list] {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
  min-width: 0;
}

/* ---------- Mobile: Dropdown ≤960px ---------- */
@media (max-width: 60rem) { /* 960px */
  /* Separator im Mobile-Zustand ausblenden */
  .sep { display: none; }

  .nav-list {
    justify-content: flex-start;
    gap: 0.5rem;  /* 8px */
    padding: 0.375rem; /* 6px */
  }

  .nav-link {
    padding: 0.5625rem 0.75rem; /* 9px 12px */
    font-size: 0.9rem;
  }

  /* Button sichtbar, Liste standardmäßig zu */
  [data-nav-toggle] {
    display: inline-flex;
    margin-right: 0.5rem;
  }

  /* Dropdown-Paneel: zunächst versteckt */
  [data-nav-root] [data-nav-list] {
    display: none;
    position: absolute;
    left: 0;
    top: 100%;
    margin-top: 0.5rem;

    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;

    padding: 0.5rem 0.75rem;
    min-width: 12rem;
    max-width: min(90vw, 26.25rem); /* 420px */

    border-radius: 0.75rem;
    background: var(--surface-alt, #0b1120);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    z-index: 210;

    /* Hardening */
    overflow: hidden;
  }

  /* geöffnet: Liste einblenden */
  [data-nav-root].is-open [data-nav-list] {
    display: flex;
  }

  /* Links: volle Breite + echte Touch-Targets */
  [data-nav-root] .nav-link {
    display: flex;
    align-items: center;
    justify-content: flex-start;

    width: 100%;
    text-align: left;

    padding: 0.625rem 0.75rem; /* 10px 12px */
    border-radius: 0.75rem;    /* 12px */

    /* Avoid pill overflow when labels are long */
    min-width: 0;
  }
}

/* ---------- Desktop: ab 961px ---------- */
@media (min-width: 60.0625rem) { /* 961px */
  .nav-toggle { display: none; }

  [data-nav-root] { display: block; }

  [data-nav-root] [data-nav-list] {
    position: static;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 1rem; /* 16px */
  }

  .nav-link {
    width: auto;
    text-align: center;
    padding: 0.625rem 1rem; /* 10px 16px */
  }
}

/* ===== Language Switch Fix =====
   ohne !important (mehr Systemstabilität) */
.site-header .header-actions .lang-pill-btn {
  color: var(--text);
}
.site-header .header-actions .lang-pill-btn.is-active {
  color: var(--accent-ink);
}
.site-header .header-actions .lang-sep {
  color: var(--muted);
}