/* ============================================================
   NORTHCORE — CORE LAYER
   Reset · Typografie · Navigation · Komponenten · Motion-Basis
   Prinzip: DOM erzählt, Canvas atmet. Gold nur für Bedeutung.
   ============================================================ */

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scrollbar-color: rgba(176, 186, 202, 0.25) var(--bg-primary);
}

body {
  background: var(--bg-primary);
  color: var(--text-body);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  min-height: 100vh;
}

img, svg, video, canvas { display: block; max-width: 100%; }
/* Logos sind nicht quadratisch — feste width/height-Boxen würden sie
   verzerren (Lighthouse image-aspect-ratio) */
img[src*="logo-"] { object-fit: contain; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
input, textarea, select { font: inherit; color: inherit; }
ul[role="list"], ol[role="list"] { list-style: none; }

::selection { background: var(--nc-gold-dim); color: var(--text-primary); }

/* ---------- Fokus & Zugänglichkeit ---------- */
:focus-visible {
  outline: 2px solid var(--nc-gold);
  outline-offset: 3px;
  border-radius: 2px;
}
:focus:not(:focus-visible) { outline: none; }

.skip-link {
  position: fixed;
  top: 12px; left: 12px;
  z-index: var(--z-skip);
  padding: 12px 20px;
  background: var(--bg-primary);
  color: var(--text-primary);
  border: 1px solid var(--nc-gold);
  font-family: var(--font-mono);
  font-size: var(--fs-ui);
  text-decoration: none;
  transform: translateY(-200%);
  transition: transform var(--t-micro) var(--ease-sword);
}
.skip-link:focus { transform: translateY(0); }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Typografie ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--text-primary);
  font-weight: 560;
  text-wrap: balance;
}

.display {
  font-size: var(--fs-h1);
  line-height: var(--lh-display);
  letter-spacing: var(--ls-display);
  font-weight: 480;
}
.display strong, .display em {
  font-style: normal;
  font-weight: 620;
  color: var(--nc-gold);
}

.h2 {
  font-size: var(--fs-h2);
  line-height: var(--lh-h2);
  letter-spacing: var(--ls-h2);
  font-weight: 500;
}
.h3 { font-size: var(--fs-h3); line-height: 1.25; font-weight: 540; }

.lead {
  font-size: var(--fs-lead);
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 62ch;
  text-wrap: pretty;
}
p { max-width: 68ch; text-wrap: pretty; }

.eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--nc-gold);
}
.eyebrow::before {
  content: "";
  width: 34px; height: 1px;
  background: var(--nc-gold);
  opacity: 0.7;
  flex: none;
}
.eyebrow--silver { color: var(--nlf-silver); }
.eyebrow--silver::before { background: var(--nlf-silver); }

.mono { font-family: var(--font-mono); font-size: var(--fs-meta); letter-spacing: 0.04em; }
.muted { color: var(--text-muted); }

/* Kapitel-Nummern — die Dramaturgie zählt mit */
.chapter-no {
  font-family: var(--font-mono);
  font-size: var(--fs-meta);
  color: var(--text-muted);
  letter-spacing: 0.14em;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--page-max);
  margin-inline: auto;
  padding-inline: var(--page-pad);
}
.container--narrow { max-width: 900px; }

.section {
  position: relative;
  padding-block: var(--section-pad);
}
.section--flush { padding-block: 0; }

.section-head {
  display: grid;
  gap: 22px;
  max-width: 780px;
  margin-bottom: clamp(48px, 6vh, 72px);
}

/* Hairline-Trenner */
.rule { border: 0; height: 1px; background: var(--line); }

/* Grids — minmax(0,1fr) statt 1fr: 1fr = minmax(auto,1fr), lange
   Inhalte (Wortmarken, Mono-Meta) sprengen sonst die Spur auf Mobile */
.grid { display: grid; gap: var(--gap-grid); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 1024px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 680px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: minmax(0, 1fr); }
  /* Lange deutsche Komposita („Datenschutzerklärung") passen sonst nicht in 320px */
  h1, h2, h3, .display, .h2, .h3 { hyphens: auto; overflow-wrap: break-word; }
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: var(--z-nav);
  border-bottom: 1px solid transparent;
  transition: background var(--t-comp) var(--ease-light),
              border-color var(--t-comp) var(--ease-light);
}
.nav.is-scrolled {
  background: rgba(7, 9, 14, 0.82);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 72px;
}
.nav__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 560;
  letter-spacing: var(--ls-wordmark);
  text-transform: uppercase;
}
.nav__brand img { width: 30px; height: 30px; }
.nav__links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}
.nav__link {
  display: block;
  padding: 10px 14px;
  font-size: var(--fs-ui);
  color: var(--text-body);
  text-decoration: none;
  letter-spacing: 0.02em;
  border-radius: var(--radius);
  transition: color var(--t-instant) var(--ease-light);
}
.nav__link:hover { color: var(--text-primary); }
.nav__link[aria-current="page"] {
  color: var(--nc-gold);
}
.nav__cta {
  margin-left: 8px;
}

/* Sprach-Schalter */
.lang-switch {
  display: flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 12px;
}
.lang-switch a, .lang-switch span {
  padding: 7px 11px;
  text-decoration: none;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}
.lang-switch [aria-current="true"] {
  color: var(--bg-primary);
  background: var(--nc-gold);
  font-weight: 500;
}
.lang-switch a:hover { color: var(--text-primary); }

/* Mobile-Navigation */
.nav__toggle {
  display: none;
  width: 44px; height: 44px;
  position: relative;
  flex: none;
}
.nav__toggle span, .nav__toggle::before, .nav__toggle::after {
  content: "";
  position: absolute;
  left: 11px; right: 11px;
  height: 1.5px;
  background: var(--text-primary);
  transition: transform var(--t-comp) var(--ease-sword),
              opacity var(--t-micro) var(--ease-light);
}
.nav__toggle::before { top: 16px; }
.nav__toggle span    { top: 21.5px; }
.nav__toggle::after  { top: 27px; }
.nav__toggle[aria-expanded="true"]::before { transform: translateY(5.5px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span    { opacity: 0; }
.nav__toggle[aria-expanded="true"]::after  { transform: translateY(-5.5px) rotate(-45deg); }

@media (max-width: 920px) {
  .nav__toggle { display: block; }
  .nav__menu {
    position: fixed;
    inset: 72px 0 auto 0;
    background: rgba(7, 9, 14, 0.97);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--line);
    padding: 18px var(--page-pad) 30px;
    display: none;
  }
  .nav__menu.is-open { display: block; }
  .nav__links { flex-direction: column; align-items: stretch; gap: 2px; }
  .nav__link { padding: 14px 6px; font-size: 16px; border-bottom: 1px solid var(--line); }
  .nav__cta { margin: 18px 0 0; }
}
/* Sehr schmale Geräte: Brand + Burger + Sprachumschalter müssen in 272px passen */
@media (max-width: 420px) {
  .nav__inner { gap: 10px; }
  .nav__brand span { font-size: 12px; letter-spacing: 0.16em; }
  .lang-switch a, .lang-switch span { padding: 6px 8px; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 30px;
  font-family: var(--font-body);
  font-size: var(--fs-ui);
  font-weight: 500;
  letter-spacing: 0.03em;
  text-decoration: none;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: background var(--t-instant) var(--ease-sword),
              border-color var(--t-instant) var(--ease-sword),
              color var(--t-instant) var(--ease-sword),
              transform var(--t-instant) var(--ease-sword);
  will-change: transform;
}
.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--nc-gold);
  color: #0B0E15;
}
.btn--primary:hover { background: var(--nc-gold-bright); }

.btn--ghost {
  border-color: var(--line-strong);
  color: var(--text-primary);
}
.btn--ghost:hover { border-color: var(--nc-gold); color: var(--nc-gold-bright); }

.btn--line {
  padding: 10px 2px;
  border: 0;
  border-bottom: 1px solid var(--nc-gold-dim);
  border-radius: 0;
  color: var(--nc-gold);
}
.btn--line:hover { border-bottom-color: var(--nc-gold); color: var(--nc-gold-bright); }

/* Helle Welt: Gold als Textfarbe braucht einen dunkleren Träger —
   #C9A468 auf #EFECE4 = 1.98:1, #7D5F2C = 5.0:1 (WCAG AA) */
[data-theme="light"] .btn--line { color: #7D5F2C; border-bottom-color: rgba(125, 95, 44, 0.45); }
[data-theme="light"] .btn--line:hover { color: #5F4820; border-bottom-color: #7D5F2C; }

.btn .arrow { transition: transform var(--t-instant) var(--ease-sword); }
.btn:hover .arrow { transform: translateX(4px); }

/* ---------- Karten & Flächen ---------- */
.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  transition: border-color var(--t-comp) var(--ease-light),
              background var(--t-comp) var(--ease-light),
              transform var(--t-comp) var(--ease-core);
}
.card:hover {
  border-color: var(--line-strong);
  background: var(--surface-raised);
}
a.card { text-decoration: none; color: inherit; display: block; }
a.card:hover { transform: translateY(-3px); }

.card__icon {
  width: 40px; height: 40px;
  margin-bottom: 22px;
  color: var(--nc-gold);
}
.card h3 { margin-bottom: 12px; }
.card p { font-size: 15px; color: var(--text-body); }

/* Metadaten-Zeile unten in Karten */
.card__meta {
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: var(--fs-meta);
  color: var(--text-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  justify-content: space-between;
  gap: 12px;
}

/* ---------- System-/Terminal-Fläche (Sword-Demos) ---------- */
.term {
  background: var(--bg-deep);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.75;
  overflow: hidden;
}
.term__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  border-bottom: 1px solid var(--line);
  color: var(--text-muted);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.term__body { padding: 20px 22px; color: var(--text-secondary); }
.term .t-gold { color: var(--nc-gold); }
.term .t-ok { color: var(--state-ok); }
.term .t-warn { color: var(--state-warn); }
.term .t-dim { color: var(--text-muted); }

/* Status-Punkt */
.dot {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--state-ok);
  margin-right: 8px;
  vertical-align: 1px;
}
.dot--warn { background: var(--state-warn); }
.dot--gold { background: var(--nc-gold); }

/* ---------- Formular ---------- */
.field { display: grid; gap: 8px; }
.field label {
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.field input, .field textarea, .field select {
  background: var(--surface-deep);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
  color: var(--text-primary);
  transition: border-color var(--t-micro) var(--ease-light);
}
.field input:focus, .field textarea:focus, .field select:focus {
  border-color: var(--nc-gold);
  outline: none;
}
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"] {
  border-color: var(--state-risk);
}
.field__error {
  font-size: 13px;
  color: var(--state-risk);
  min-height: 1em;
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--line);
  padding: 64px 0 42px;
  background: var(--bg-deep);
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: var(--gap-grid);
}
@media (max-width: 920px) { .footer__grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer__grid { grid-template-columns: 1fr; } }
.footer h3 { /* h3 statt h4: Heading-Hierarchie ohne Sprung (Lighthouse heading-order) */
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 400;
  margin-bottom: 18px;
}
.footer ul { list-style: none; display: grid; gap: 10px; }
.footer a {
  color: var(--text-body);
  text-decoration: none;
  font-size: 14.5px;
  transition: color var(--t-instant) var(--ease-light);
}
.footer a:hover { color: var(--nc-gold-bright); }
.footer__base {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

/* ---------- Reveal-System (scroll-orchestriert) ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity var(--t-morph) var(--ease-light),
              transform var(--t-morph) var(--ease-core);
  transition-delay: calc(var(--stagger) * var(--reveal-i, 0));
}
[data-reveal="left"]  { transform: translateX(-30px); }
[data-reveal="right"] { transform: translateX(30px); }
[data-reveal="scale"] { transform: scale(0.96); }
[data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* Linien, die sich zeichnen */
[data-reveal="line"] {
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--t-chapter) var(--ease-sword);
}
[data-reveal="line"].is-in { transform: scaleX(1); }

/* ---------- Boot-Sequenz (einmalig, ehrlich kurz) ---------- */
.boot {
  position: fixed;
  inset: 0;
  z-index: var(--z-boot);
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 480ms var(--ease-light), visibility 0s 480ms;
}
.boot.is-done { opacity: 0; visibility: hidden; pointer-events: none; }
.boot__mark {
  display: grid;
  justify-items: center;
  gap: 26px;
}
.boot__mark img { width: 64px; height: 64px; }
.boot__line {
  width: 180px; height: 1px;
  background: var(--line);
  position: relative;
  overflow: hidden;
}
.boot__line::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--nc-gold);
  transform: scaleX(0);
  transform-origin: left;
  animation: boot-fill 900ms var(--ease-sword) forwards;
}
@keyframes boot-fill { to { transform: scaleX(1); } }
.boot__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* ---------- Operating Field (Canvas-Bühne) ---------- */
.field-stage {
  position: absolute;
  inset: 0;
  z-index: var(--z-field);
  overflow: hidden;
  pointer-events: none;
}
.field-stage canvas { width: 100%; height: 100%; }
.field-stage__fallback {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 60% 45% at 50% 38%, rgba(201, 164, 104, 0.07), transparent 70%),
    radial-gradient(ellipse 80% 60% at 50% 100%, rgba(16, 20, 29, 0.9), transparent 60%);
}
.section > .container { position: relative; z-index: var(--z-content); }

/* ---------- Reduced Motion: Premium-Ruhevariante ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: opacity 300ms ease;
  }
  .boot { transition-duration: 150ms; }
  .boot__line::after { animation-duration: 1ms; }
  *, *::before, *::after {
    animation-duration: 0.001s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.15s !important;
  }
}

/* ---------- Druck ---------- */
@media print {
  .nav, .footer, .boot, .field-stage, .skip-link { display: none !important; }
  body { background: #fff; color: #111; }
}