/********************************************************
 * 1) Design-Variablen
 ********************************************************/
:root {
  /* Basis-UI */
  --color-bg: #000000;
  --color-text: #355070;
  --color-text-light: #6d597a;
  --color-accent: #e56b6f;

  /* Logo-/Hamburger-Farben & Größen */
  --logo-color: #2f6fbd; /* Logoblau – steuert Hamburger-/X-Icon */
  --hamburger-size: 22px;

  /* Header/Nav */
  --bg-header: #355070;
  --text: #ffffff; /* nur falls woanders benötigt */
  --text-hover: #ffffff;
  --nav-text: #000000; /* Standardfarbe der Navi */

  /* Layout */
  --max-width: 1200px;
  --space: 1rem;

  /* Rahmen/Abstände */
  --frame-gap-x: clamp(20px, 4vw, 36px); /* links/rechts */
  --frame-gap-y: clamp(4px, 1vh, 12px); /* oben/unten (Portrait) */
  --footer-gap-top: 28px; /* Card → Footer */
  --footer-gap-bottom: 20px; /* Footer → Seitenende */

  /* Card */
  --card-max: 1140px;
  --card-pad: clamp(18px, 3.5vw, 28px);
  --card-radius: 16px;
  --card-bg-plain: #ffffff;
  --card-shadow-plain: 0 12px 40px rgba(0, 0, 0, 0.35);

  /* Navigation */
  --gap: 24px;
  --icon-size: 28px;
  --font-size-nav: 14px;

  /* Brand/Logo als Background */
  --brand-size: 280px;
  --brand-radius: 0px;
  --brand-fit: 120%;
  --brand-img: url("/assets/img/logos/logo.svg");
  --brand-border: 0;
  --brand-bg: transparent;

  /* Mobiles Menü (Overlay) */
  --menu-top-gap: 72px; /* Abstand der Icon-Grid unter dem Header */
}

/* etwas kompaktere Abstände bei sehr niedrigen Viewports (Landscape-Phones) */
@media (max-height: 480px) {
  :root {
    --frame-gap-y: clamp(10px, 2vh, 18px);
    --card-pad: clamp(14px, 2.2vh, 20px);
    --gap: 16px;
    --brand-size: 120px;
    --brand-fit: 100%;
    --menu-top-gap: 28px;
  }
}

/********************************************************
 * 2) Reset & Grundlayout
 ********************************************************/
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: "Roboto", system-ui, -apple-system, Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 16px;
  line-height: 1.5;

  /* Footer immer sichtbar */
  min-height: 100svh;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto; /* Inhalt | Footer */
}

/* Schwarzer Bereich + Card zentriert, Safe-Area berücksichtigen */
.page-frame {
  grid-row: 1;
  min-height: 0; /* darf schrumpfen */
  background: #000;
  display: grid;
  place-items: center;
  padding-inline: calc(var(--frame-gap-x) + env(safe-area-inset-left));
  padding-top: calc(var(--frame-gap-y) + env(safe-area-inset-top));
  padding-bottom: calc(var(--frame-gap-y) + env(safe-area-inset-bottom));
}

/* Card */
.card {
  position: relative; /* Referenz fürs mobile Overlay */
  width: min(100%, var(--card-max));
  background: var(--card-bg-plain);
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow-plain);
  overflow: hidden; /* runde Ecken für Overlay */
  display: grid;
  grid-template-rows: auto minmax(0, 1fr); /* Header | Content */
  min-height: 100%;
  max-height: 100%;
}

.card-header {
  padding: clamp(6px, 1vh, 12px) var(--card-pad);
}
.card-content {
  padding: var(--card-pad);
  min-height: 0; /* wichtig für korrektes Scrollen */
  overflow: auto; /* nur Inhalt scrollt */
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}

/* Footer im schwarzen Bereich */
.site-footer {
  grid-row: 2;
  margin: var(--footer-gap-top) 0 var(--footer-gap-bottom);
  text-align: center;
  font-size: 12px;
  color: #eaeaea;
}

/* Seitencontainer (falls genutzt) */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space);
}

/********************************************************
 * 3) Header/Brand/Navi
 ********************************************************/
.card-header .header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

/* Logo links – als Background-Image (nicht dragbar) */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.brand .brand-box {
  width: var(--brand-size);
  height: var(--brand-size);
  border-radius: var(--brand-radius);
  border: var(--brand-border);
  background-color: var(--brand-bg);
  background-image: var(--brand-img);
  background-repeat: no-repeat;
  background-position: center;
  background-size: var(--brand-fit);
  user-select: none;
  -webkit-user-drag: none;
  pointer-events: none;
}
/* Falls im Markup noch ein <img> steht: ausblenden */
.brand img {
  display: none;
}

.card-header .nav {
  margin-left: auto;
}

/* Falls header.php noch .header hat: neutralisieren */
.card-header .header {
  position: static;
  background: transparent !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  padding: 0 !important;
  margin: 0 !important;
  color: inherit;
}

/* „Nav-Card“ entkernen */
.nav-card {
  background: none !important;
  backdrop-filter: none !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  padding: 0 !important;
}

/* Liste */
.nav .nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: var(--gap);
  align-items: center;
  flex-wrap: wrap;
  position: relative;
}
.nav .nav-list li {
  display: flex;
  position: relative;
}

/* Links */
.card-header .nav .nav-link {
  position: relative;
  isolation: isolate;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  color: var(--nav-text);
  font-size: var(--font-size-nav);
  line-height: 1.1;
  padding: 8px 10px;
  border-radius: 8px;
  transition: color 0.2s ease, transform 0.2s ease;
}
.nav .nav-link:hover {
  color: var(--color-accent);
  text-decoration: none;
  transform: translateY(-2px);
}
.nav .nav-link.current {
  color: var(--color-accent);
  font-weight: 700;
}
.nav .nav-link:focus-visible {
  outline: 2px solid color-mix(in oklab, var(--color-accent), white 30%);
  outline-offset: 2px;
}

/* Pille */
.nav .nav-link::before {
  content: "";
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 44px;
  height: 4px;
  border-radius: 2px;
  background: var(--accent-item);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
}
.nav .nav-link:hover::before,
.nav .nav-link:focus-visible::before,
.nav .nav-link.current::before {
  opacity: 1;
}

/* Icons in der Navi */
.nav .nav-link .icon {
  display: block;
  width: var(--icon-size);
  height: var(--icon-size);
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  user-select: none;
  pointer-events: none;
}

/* Icon-Zuweisungen */
.icon-home {
  background-image: url("/assets/img/icons/web-portal.svg");
}
.icon-nas {
  background-image: url("/assets/img/icons/diskstation.svg");
}
.icon-photo {
  background-image: url("/assets/img/icons/photos_32.png");
}
.icon-cloud {
  background-image: url("/assets/img/icons/drive_32.png");
}
.icon-audio {
  background-image: url("/assets/img/icons/audioplayer_32.png");
}
.icon-kontakt {
  background-image: url("/assets/img/icons/contacts_32.png");
}
.icon-about {
  background-image: url("/assets/img/icons/arrow.png");
}

/* Individuelle Farben pro Link */
.nav .nav-link {
  --accent-item: var(--color-accent);
}
.nav .nav-link:hover,
.nav .nav-link.current {
  color: var(--accent-item);
}
.nav .nav-link:focus-visible {
  outline-color: color-mix(in oklab, var(--accent-item), white 30%);
}
.nav .nav-link::before {
  background: var(--accent-item);
}
.nav .nav-link.nav-home {
  --accent-item: #14b8a6;
}
.nav .nav-link.nav-nas {
  --accent-item: #111827;
}
.nav .nav-link.nav-cloud {
  --accent-item: #06b6d4;
}
.nav .nav-link.nav-photo {
  --accent-item: #f59e0b;
}
.nav .nav-link.nav-audio {
  --accent-item: #22c55e;
}
.nav .nav-link.nav-kontakt {
  --accent-item: #3b82f6;
}
.nav .nav-link.nav-about {
  --accent-item: #0ea5e9;
}

/********************************************************
 * 4) Hamburger-Button & mobiles Overlay (Card-groß)
 ********************************************************/
/* Grundstil: Button bleibt an Ort & Stelle; Icon nimmt Logofarbe an */
.nav-toggle {
  display: none; /* per MQ sichtbar */
  position: relative; /* Referenz für ::before/::after */
  z-index: 30; /* liegt über dem Overlay */
  width: 40px;
  height: 40px;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  color: var(--logo-color);
}
/* evtl. im Markup vorhandene 3 Striche ausblenden */
.nav-toggle span {
  display: none;
}

/* Standard: Hamburger via Mask */
.nav-toggle::before {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  width: var(--hamburger-size);
  height: var(--hamburger-size);
  background-color: currentColor;
  -webkit-mask: url("/assets/img/icons/hamburger_icon.svg") no-repeat center /
    contain;
  mask: url("/assets/img/icons/hamburger_icon.svg") no-repeat center / contain;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* Geöffnet: gleiches Button-Element zeigt ein „X“ */
.menu-open .nav-toggle::before,
.menu-open .nav-toggle::after {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  width: var(--hamburger-size);
  height: 2px;
  background-color: currentColor;
  -webkit-mask: none;
  mask: none;
}
.menu-open .nav-toggle::before {
  transform: rotate(45deg);
}
.menu-open .nav-toggle::after {
  transform: rotate(-45deg);
}

/* Close-Button im Overlay nicht verwenden */
.nav-close {
  display: none !important;
}

/* Mobil: Overlay füllt NUR die Card */
@media (max-width: 700px) {
  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }
  .card-header .nav {
    display: none;
  }

  .card-header .nav.is-open {
    display: block;
    position: absolute; /* innerhalb der Card */
    inset: 0;
    z-index: 20;
    background: #fff; /* alternativ: rgba(255,255,255,.98) + blur */
    /* backdrop-filter: blur(6px); */
    padding: 20px;
    overflow: auto; /* Menü kann innerhalb scrollen */
  }

  .card-header .nav.is-open .nav-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px 16px;
    margin: var(--menu-top-gap) 6px 12px; /* Abstand nach oben variabel */
    justify-items: center;
  }
  .card-header .nav.is-open .nav-link {
    font-size: 13px;
    padding: 10px 8px;
  }
  .card-header .nav.is-open .nav-link .icon {
    width: 44px;
    height: 44px; /* größere Touch-Ziele */
  }

  /* Seite darf weiter scrollen */
  body.menu-open {
    overflow: auto;
  }
}

/* Landscape-Optimierung im Overlay (mehr Spalten, weniger Top-Gap) */
@media (max-width: 700px) and (orientation: landscape) {
  .card-header .nav.is-open .nav-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin-top: max(20px, calc(var(--menu-top-gap) - 28px));
  }
}

/********************************************************
 * 5) Hero (optional)
 ********************************************************/
.hero {
  text-align: center;
  padding: clamp(0.5rem, 1.5vh, 1rem) 0.75rem; /* minimaler Innenabstand */
  background: linear-gradient(135deg, var(--color-accent), #06b6d4);
  color: #fff;
  border-radius: 8px;
  margin: clamp(0.25rem, 1vh, 0.75rem) 0; /* ganz nah an Navi */
}

.hero h1 {
  font-size: clamp(1.2rem, 2vw, 1.6rem); /* kompakter Titel */
  margin-bottom: 0.25rem;
}

.hero p {
  font-size: clamp(0.85rem, 1.2vw, 1rem);
  margin-bottom: 0.25rem;
  opacity: 0.9;
}

/********************************************************
 * 6) Responsive Logo-Skalierung
 ********************************************************/
/* etwas kleiner auf Tablets */
@media (max-width: 1024px) {
  :root {
    --brand-size: 200px;
    --brand-fit: 110%;
  }
}
/* kleiner auf schmalen Laptops */
@media (max-width: 768px) {
  :root {
    --brand-size: 140px;
    --brand-fit: 100%;
  }
}
/* Smartphone: auf Mark-Logo wechseln (nur Haus) */
@media (max-width: 480px) {
  :root {
    --brand-size: 56px;
    --brand-fit: 80%;
    --brand-img: url("/assets/img/logos/logo-mark.svg");
  }
}
/* Navi-Text sehr klein/ausblenden, wenn nötig */
@media (max-width: 480px) {
  .nav .nav-link {
    font-size: 0;
  }
}

/********************************************************
 * 7) Dark Mode
 ********************************************************/
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #000000;
    --color-text: #eaeaea;
    --color-text-light: #9aa0a6;
    --bg-header: #111;
    --text: #eaeaea;
    --text-hover: #fff;
    --card-bg-plain: #ffffff; /* Card bleibt weiß */
    --card-shadow-plain: 0 12px 40px rgba(0, 0, 0, 0.55);
    --accent: #2dd4bf;
    --nav-text: #000000; /* Navi bleibt schwarz auf weißer Card */
  }
}

/********************************************************
 * 8) Reduced Motion
 ********************************************************/
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}

/********************************************************
 * 9) Content Images (BG + Anti-Save-Hürden)
 ********************************************************/

/* Wrapper rendert das Bild als Background, Bildquelle kommt aus --content-image */
.content-image {
  /* Bilddarstellung */
  background-image: var(--content-image);
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;

  /* Größe/Optik */
  width: 100%;
  max-width: 800px;
  height: clamp(220px, 35vh, 420px);
  margin: 1.5rem auto;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,.15);
  background-color: #fff;

  /* Hürden gegen Speichern/Kopieren */
  user-select: none;          /* Text-/Bildauswahl verhindern */
  -webkit-user-drag: none;    /* Drag&Drop auf WebKit verhindern */
  position: relative;         /* für Overlay */
  overflow: hidden;

  /* Keine Interaktion auf dem Bildbereich (Caption bleibt klickbar) */
  pointer-events: none;
}

/* halbtransparentes Overlay (erschwert „Bild kopieren“ per Kontextmenü-Tools) */
.content-image::after {
  content: "";
  position: absolute;
  inset: 0;
  /* ganz leichtes Overlay (visuell neutral), aber verhindert Targeting */
  background: rgba(255,255,255,0.001);
}

/* Caption unter dem Bild – wiederverwendbar */
.content-caption {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 4px 8px;
  font-size: .9rem;
  color: #333;
  background: rgba(255,255,255,.85);
  border-radius: 4px;
  text-align: center;

  /* Interaktion für Caption wieder erlauben */
  pointer-events: auto;
}

/* About: H2 zentrieren */
.card-content h2 {
  text-align: center;
  margin: 0 0 0.75rem 0;
}
/* H2 → Figure enger */
h2 + .content-image { margin-top: 0.5rem; }