@import url("fonts.css");

/* Innovation-Bridge-Tokens, aus ib-website/web gespiegelt. Bewusst kopiert
   statt paketiert: das Playbook bleibt ohne Build-Kette deploybar. */

:root {
  --ground: #ffffff;
  --ink: #15120d;
  --ink-soft: rgba(21, 18, 13, .74);
  --ink-dark: #1c1712;
  --accent: #b2532f;
  --accent-strong: #a8492a;
  --accent-line: #c2654a;
  --accent-tint: rgba(188, 91, 56, .08);
  --rule: rgba(21, 18, 13, .16);
  --status-ok: #9bc98f;

  --paper: #f7f3ec;
  --paper-deep: #eee3d4;
  --accent-text: color-mix(in srgb, var(--accent) 82%, var(--ink));

  --serif: 'Newsreader', Georgia, 'Times New Roman', serif;
  --sans: 'IBM Plex Sans', -apple-system, 'Segoe UI', Arial, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, Menlo, monospace;

  --radius: 10px;
  --radius-box: 20px;
  --radius-pill: 999px;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-padding-top: 118px; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.09rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  accent-color: var(--accent);
}

a { color: var(--accent-strong); text-underline-offset: 3px; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.shell {
  max-width: 1140px;
  margin-inline: auto;
  padding: clamp(30px, 5vw, 60px) clamp(20px, 5vw, 44px) 120px;
}

/* ---- Kopf + Abschnitts-Navigation ---- */

.masthead {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid var(--rule);
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter: blur(10px);
}

.masthead-inner {
  display: flex;
  flex-wrap: wrap;
  max-width: 1140px;
  align-items: baseline;
  margin-inline: auto;
  gap: 8px 18px;
  padding: 14px clamp(20px, 5vw, 44px) 0;
}

.masthead .wordmark {
  font-family: var(--serif);
  font-size: 1.18rem;
  font-weight: 500;
}

.masthead .wordmark em { font-style: italic; }

.masthead .for {
  color: var(--accent-text);
  font: 600 .66rem/1.4 var(--mono);
  letter-spacing: .13em;
  text-transform: uppercase;
}

.masthead .stand {
  margin-left: auto;
  color: var(--ink-soft);
  font: 500 .7rem/1.5 var(--mono);
}

.subnav {
  display: flex;
  max-width: 1140px;
  margin-inline: auto;
  gap: 4px;
  padding: 6px clamp(20px, 5vw, 44px) 10px;
  overflow-x: auto;
}

.subnav a {
  border-radius: var(--radius-pill);
  padding: 5px 13px;
  color: var(--ink-soft);
  font: 600 .74rem/1.5 var(--sans);
  text-decoration: none;
  white-space: nowrap;
}

.subnav a:hover {
  background: var(--accent-tint);
  color: var(--accent-strong);
}

/* ---- Auftakt ---- */

.lede { margin-top: clamp(40px, 6vw, 72px); }

.lede h1 {
  max-width: 17ch;
  font-family: var(--serif);
  font-size: clamp(2.4rem, 6vw, 3.6rem);
  font-weight: 470;
  letter-spacing: -.016em;
  line-height: 1.06;
  text-wrap: balance;
}

.lede h1 em {
  display: block;
  margin-top: .06em;
  color: var(--accent-text);
  font-style: italic;
}

.lede > p {
  max-width: 60ch;
  margin-top: 22px;
  font-size: 1.13rem;
  line-height: 1.65;
}

.nordstern {
  max-width: 640px;
  margin-top: 30px;
  border-left: 2px solid var(--accent);
  padding: 6px 0 6px 22px;
}

.nordstern span {
  display: block;
  margin-bottom: 6px;
  color: var(--accent-text);
  font: 600 .66rem/1.4 var(--mono);
  letter-spacing: .13em;
  text-transform: uppercase;
}

.nordstern p {
  font-family: var(--serif);
  font-size: 1.3rem;
  font-style: italic;
  font-weight: 460;
  line-height: 1.4;
  text-wrap: balance;
}

/* ---- Sektionen ---- */

section { margin-top: clamp(64px, 9vw, 110px); }

.kicker {
  display: block;
  margin-bottom: 12px;
  color: var(--accent-text);
  font: 600 .68rem/1.4 var(--mono);
  letter-spacing: .13em;
  text-transform: uppercase;
}

section > h2 {
  max-width: 24ch;
  font-family: var(--serif);
  font-size: clamp(1.7rem, 3.6vw, 2.4rem);
  font-weight: 480;
  letter-spacing: -.012em;
  line-height: 1.16;
  text-wrap: balance;
}

section > h2 + p {
  max-width: 62ch;
  margin-top: 14px;
  color: var(--ink-soft);
}

.hint {
  max-width: 62ch;
  margin-top: 12px;
  color: var(--ink-soft);
  font-size: .92rem;
  line-height: 1.6;
}

/* ---- Zielbild: das schaltbare Schaubild ---- */

.ziel {
  margin-top: 30px;
  border: 1px solid var(--rule);
  border-radius: var(--radius-box);
  background: var(--ground);
  padding: clamp(16px, 2.6vw, 26px);
  box-shadow: 0 30px 80px rgba(81, 51, 27, .1);
}

.ziel-switch {
  display: inline-flex;
  gap: 4px;
  margin-bottom: 20px;
  border: 1px solid var(--rule);
  border-radius: var(--radius-pill);
  background: var(--paper);
  padding: 4px;
}

.ziel-switch label { position: relative; }

.ziel-switch input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.ziel-switch span {
  display: inline-block;
  border-radius: var(--radius-pill);
  padding: 8px 16px;
  color: var(--ink-soft);
  font: 600 .8rem/1.2 var(--sans);
  cursor: pointer;
  transition: background .18s var(--ease), color .18s var(--ease);
}

.ziel-switch input:checked + span {
  background: var(--ink-dark);
  color: color-mix(in srgb, var(--ground) 94%, transparent);
}

.ziel-switch input:focus-visible + span {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Zustands-Maschine: sichtbar ist, was zum data-state passt. Die
   Apple-Stufe erbt die System-Texte, außer eine Ebene bringt einen
   eigenen Apple-Text mit. */

.sw, .bandc { display: none; }

.ziel[data-state="heute"] [data-s="heute"],
.ziel[data-state="system"] [data-s="system"],
.ziel[data-state="apple"] [data-s="apple"],
.ziel[data-state="apple"] [data-s="system"] { display: block; }

.ziel[data-state="apple"] .ziel-band [data-s="system"],
.ziel[data-state="apple"] .ziel-foot [data-s="system"] { display: none; }

@media (prefers-reduced-motion: no-preference) {
  .ziel[data-state] .sw,
  .ziel[data-state] .bandc { animation: zfade .34s var(--ease); }
  @keyframes zfade {
    from { opacity: 0; transform: translateY(3px); }
    to { opacity: 1; transform: none; }
  }
}

.ziel-band {
  border-radius: 14px;
  padding: 16px 20px;
  transition: background .3s var(--ease);
}

.ziel[data-state="heute"] .ziel-band {
  border: 1px dashed color-mix(in srgb, var(--ink) 30%, transparent);
  background: var(--paper);
}

.ziel[data-state="system"] .ziel-band,
.ziel[data-state="apple"] .ziel-band {
  border: 1px solid color-mix(in srgb, var(--ground) 20%, transparent);
  background: var(--ink-dark);
  color: color-mix(in srgb, var(--ground) 94%, transparent);
}

.bandc { display: none; }

.bandc b {
  display: inline;
  font-size: 1rem;
  font-weight: 600;
}

.bandc b {
  display: block;
}

.bandc span {
  display: block;
  margin-top: 5px;
  max-width: 68ch;
  font: 500 .86rem/1.55 var(--mono);
  letter-spacing: .01em;
}

.tools {
  display: inline-block;
  margin-left: 10px;
  border: 1px solid currentColor;
  border-radius: var(--radius-pill);
  padding: 3px 10px;
  font: 600 .66rem/1.4 var(--mono);
  font-style: normal;
  letter-spacing: .06em;
  vertical-align: 2px;
}

.ziel[data-state="heute"] .bandc span { color: var(--ink-soft); }

.ziel[data-state="system"] .bandc span,
.ziel[data-state="apple"] .bandc span {
  color: color-mix(in srgb, var(--ground) 84%, transparent);
}

/* Ränder-Label über den Rand-Karten */
.ziel-edgelabel {
  margin: 18px 0 10px;
  color: var(--ink-soft);
  font: 600 .66rem/1.4 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
}

/* Die Ränder: wo die Schicht arbeitet */
.ziel-edges {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.edge {
  display: grid;
  align-content: start;
  gap: 6px;
  border: 1px solid var(--rule);
  border-radius: 13px;
  background: var(--paper);
  padding: 14px 15px;
  min-height: 116px;
}

.edge b { font-size: .92rem; font-weight: 600; line-height: 1.35; }

.edge .sw {
  color: var(--ink-soft);
  font-size: .82rem;
  line-height: 1.55;
}

.ziel[data-state="system"] .edge,
.ziel[data-state="apple"] .edge {
  border-color: color-mix(in srgb, var(--accent) 26%, transparent);
  background: var(--ground);
}

.ziel[data-state="system"] .edge .sw,
.ziel[data-state="apple"] .edge .sw { color: var(--ink); }

/* Verbindungslinien von den Rändern zum Kern */
.ziel-links {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  height: 22px;
}

.ziel-links span {
  justify-self: center;
  width: 0;
  border-left: 1px dashed color-mix(in srgb, var(--ink) 32%, transparent);
  transition: border-color .3s var(--ease);
}

.ziel[data-state="system"] .ziel-links span,
.ziel[data-state="apple"] .ziel-links span {
  border-left-style: solid;
  border-left-color: var(--accent);
}

/* Der Kern: Advoware — die prominente Mitte */
.ziel-core {
  border: 1.5px solid var(--accent-line);
  border-radius: 16px;
  background: color-mix(in srgb, var(--accent) 5%, var(--ground));
  padding: clamp(18px, 2.4vw, 26px);
}

.core-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
  margin-bottom: 14px;
}

.core-head span {
  color: var(--accent-text);
  font: 600 .66rem/1.4 var(--mono);
  letter-spacing: .13em;
  text-transform: uppercase;
}

.core-head b {
  font-family: var(--serif);
  font-size: clamp(1.4rem, 2.6vw, 1.85rem);
  font-weight: 480;
  letter-spacing: -.01em;
}

.core-head b em {
  color: var(--ink-soft);
  font-size: .78em;
  font-style: italic;
  font-weight: 460;
}

.core-fns {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.core-fns i {
  border: 1px solid var(--rule);
  border-radius: var(--radius-pill);
  background: var(--ground);
  padding: 7px 14px;
  font-size: .84rem;
  font-style: normal;
  font-weight: 500;
  line-height: 1.3;
}

.core-fns i.core-ki {
  border-color: var(--accent-line);
  background: var(--accent-tint);
  color: var(--accent-strong);
}

.core-note {
  max-width: 74ch;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid color-mix(in srgb, var(--accent) 20%, transparent);
  color: var(--ink-soft);
  font-size: .92rem;
  line-height: 1.6;
}

.ziel-foot {
  margin-top: 16px;
  border-top: 1px solid var(--rule);
  padding-top: 16px;
}

.foot-it {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
  margin-bottom: 12px;
}

.foot-it b { font-size: .92rem; font-weight: 600; }

.foot-it .sw {
  color: var(--ink-soft);
  font: 500 .8rem/1.5 var(--mono);
  letter-spacing: .01em;
}

.foot-line {
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 1.04rem;
  font-style: italic;
  line-height: 1.5;
}

.ziel-foot > .sw[data-s="apple"] p {
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 1.04rem;
  font-style: italic;
  line-height: 1.5;
}

.pruef {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.pruef i {
  border: 1px solid var(--accent-line);
  border-radius: var(--radius-pill);
  background: var(--accent-tint);
  padding: 6px 13px;
  color: var(--accent-strong);
  font-size: .8rem;
  font-style: normal;
  font-weight: 600;
  line-height: 1.4;
}

/* ---- Der Weg ---- */

.rahmen {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 20px;
  margin-top: 26px;
  border: 1px solid var(--rule);
  border-radius: 16px;
  background: var(--ground);
  padding: 18px 22px;
}

.rahmen b {
  color: var(--accent-text);
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3.4vw, 2.3rem);
  font-style: italic;
  font-weight: 470;
  line-height: 1;
}

.rahmen span {
  max-width: 46ch;
  color: var(--ink-soft);
  font-size: .92rem;
  line-height: 1.55;
}

.steps { display: grid; margin-top: 26px; }

.step {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 18px;
  border-top: 1px solid var(--rule);
  padding: 22px 0;
}

.step:last-child { border-bottom: 1px solid var(--rule); }

.step > b {
  color: var(--accent-text);
  font: 600 .72rem/1.7 var(--mono);
  letter-spacing: .06em;
  text-transform: uppercase;
}

.step h3 {
  font-size: 1.12rem;
  font-weight: 600;
  line-height: 1.4;
}

.step h3 small {
  margin-left: 10px;
  color: var(--accent-text);
  font: 600 .66rem/1 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
}

.step p {
  max-width: 62ch;
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: .95rem;
  line-height: 1.6;
}

.step .danach {
  margin-top: 12px;
  color: var(--ink);
  font-size: .92rem;
  font-weight: 500;
}

.step .danach::before {
  margin-right: 8px;
  color: var(--accent);
  content: "→";
  font-weight: 600;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.chips i {
  border: 1px solid var(--rule);
  border-radius: var(--radius-pill);
  background: var(--ground);
  padding: 7px 14px;
  color: var(--ink);
  font-size: .84rem;
  font-style: normal;
  line-height: 1.4;
}

.chips i.vorschlag {
  border-color: var(--accent-line);
  background: var(--accent-tint);
  color: var(--accent-strong);
  font-weight: 600;
}

/* ---- Grenzen ---- */

.grenzen {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 26px;
}

.grenze {
  border: 1px solid var(--rule);
  border-radius: 14px;
  background: var(--ground);
  padding: 18px;
}

.grenze b {
  display: block;
  margin-bottom: 8px;
  font-size: .95rem;
  font-weight: 600;
}

.grenze p {
  color: var(--ink-soft);
  font-size: .88rem;
  line-height: 1.6;
}

/* ---- Referenz: Fortschritt + Checklisten ---- */

.progress {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  margin: 26px 0 6px;
  border: 1px solid var(--rule);
  border-radius: var(--radius-pill);
  background: var(--ground);
  padding: 10px 18px;
}

.progress b {
  font: 600 .72rem/1.4 var(--mono);
  letter-spacing: .06em;
}

.progress .bar {
  flex: 1 1 120px;
  height: 5px;
  overflow: hidden;
  border-radius: var(--radius-pill);
  background: var(--paper-deep);
}

.progress .bar i {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
  transition: width .3s var(--ease);
}

.progress button {
  border: 1px solid var(--accent-line);
  border-radius: var(--radius-pill);
  background: var(--accent-tint);
  padding: 7px 14px;
  color: var(--accent-strong);
  font: 600 .72rem/1.2 var(--sans);
  cursor: pointer;
}

.progress button:hover { background: color-mix(in srgb, var(--accent) 14%, transparent); }

.block {
  margin-top: 14px;
  overflow: hidden;
  border: 1px solid var(--rule);
  border-radius: 16px;
  background: var(--ground);
}

.block > summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
  background: color-mix(in srgb, var(--paper-deep) 45%, transparent);
  padding: 14px 20px;
  cursor: pointer;
  list-style: none;
}

.block > summary::-webkit-details-marker { display: none; }

.block > summary::before {
  order: -1;
  color: var(--ink-soft);
  font-size: .8rem;
  content: "▸";
  transition: transform .15s var(--ease);
}

.block[open] > summary::before { transform: rotate(90deg); }
.block[open] > summary { border-bottom: 1px solid var(--rule); }

.block > summary b { font-size: .98rem; font-weight: 600; }

.block > summary > span {
  color: var(--ink-soft);
  font-size: .86rem;
}

.block > summary .count {
  color: var(--ink-soft);
  font: 500 .7rem/1.4 var(--mono);
  letter-spacing: .04em;
}

.block-copy {
  margin-left: auto;
  border: 1px solid var(--rule);
  border-radius: var(--radius-pill);
  background: var(--ground);
  padding: 5px 12px;
  color: var(--ink-soft);
  font: 600 .68rem/1.4 var(--sans);
  cursor: pointer;
}

.block-copy:hover {
  border-color: var(--accent-line);
  color: var(--accent-strong);
}

.item {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 4px 12px;
  border-top: 1px solid var(--rule);
  padding: 13px 20px;
  cursor: pointer;
}

.item:first-of-type { border-top: 0; }

.item:hover { background: color-mix(in srgb, var(--accent) 3%, transparent); }

.item input {
  width: 17px;
  height: 17px;
  margin-top: 5px;
  cursor: pointer;
}

.item .what {
  font-size: .96rem;
  line-height: 1.55;
}

.item .why {
  grid-column: 2;
  color: var(--ink-soft);
  font-size: .85rem;
  line-height: 1.55;
}

.item.done .what {
  color: var(--ink-soft);
  text-decoration: line-through;
  text-decoration-color: var(--accent-line);
}

.warn {
  margin-top: 20px;
  border: 1px solid var(--accent-line);
  border-radius: 14px;
  background: var(--accent-tint);
  padding: 16px 18px;
  font-size: .94rem;
  line-height: 1.6;
}

.warn b { color: var(--accent-strong); }

/* ---- Fuß ---- */

.closing {
  margin-top: clamp(64px, 9vw, 110px);
  border-top: 1px solid var(--rule);
  padding-top: 26px;
  color: var(--ink-soft);
  font-size: .9rem;
  line-height: 1.65;
}

/* ---- Schmale Viewports ---- */

@media (max-width: 860px) {
  .ziel-edges { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ziel-links { grid-template-columns: repeat(2, minmax(0, 1fr)); height: 20px; }
  .ziel-links span:nth-child(n+3) { display: none; }
  .grenzen { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .ziel-edges { grid-template-columns: 1fr; }
  .ziel-links { display: none; }
  .step { grid-template-columns: 1fr; gap: 6px; padding: 18px 0; }
  .ziel-switch { display: flex; }
  .ziel-switch label { flex: 1; }
  .ziel-switch span { display: block; padding: 9px 10px; text-align: center; }
  .masthead .stand { display: none; }
}

/* ---- Andockpunkte ---- */

.docks {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}

.dock {
  display: grid;
  align-content: start;
  gap: 7px;
  border: 1px solid var(--rule);
  border-radius: 14px;
  background: var(--ground);
  padding: 18px;
}

.dock > span {
  justify-self: start;
  border: 1px solid var(--accent-line);
  border-radius: var(--radius-pill);
  background: var(--accent-tint);
  padding: 4px 11px;
  color: var(--accent-strong);
  font: 600 .66rem/1.4 var(--mono);
  letter-spacing: .08em;
}

.dock b { font-size: .96rem; font-weight: 600; }

.dock p {
  color: var(--ink-soft);
  font-size: .87rem;
  line-height: 1.6;
}

.offen {
  margin-top: 16px;
  border: 1px dashed color-mix(in srgb, var(--ink) 30%, transparent);
  border-radius: 14px;
  background: var(--paper);
  padding: 18px 20px;
}

.offen b {
  display: block;
  margin-bottom: 6px;
  font-size: .92rem;
  font-weight: 600;
}

.offen p {
  max-width: 74ch;
  color: var(--ink-soft);
  font-size: .92rem;
  line-height: 1.6;
}

/* ---- Etappe: was er selbst macht ---- */

.step h3 small.selbst {
  border: 1px solid var(--rule);
  border-radius: var(--radius-pill);
  background: var(--paper-deep);
  padding: 3px 10px;
  color: var(--ink-soft);
  letter-spacing: .08em;
}

/* ---- Seminar-Strang ---- */

.strang {
  margin-top: 16px;
  border: 1px solid var(--accent-line);
  border-radius: 16px;
  background: var(--accent-tint);
  padding: 18px 20px;
}

.strang-tag {
  display: block;
  margin-bottom: 8px;
  color: var(--accent-strong);
  font: 600 .64rem/1.4 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
}

.strang b { font-size: 1rem; font-weight: 600; }

.strang > p {
  max-width: 62ch;
  margin-top: 6px;
  color: var(--ink-soft);
  font-size: .92rem;
  line-height: 1.6;
}

.strang-teile {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-top: 14px;
}

.strang-teile i {
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  border-radius: 10px;
  background: var(--ground);
  padding: 10px 12px;
  font-size: .84rem;
  font-style: normal;
  font-weight: 500;
  line-height: 1.45;
}

@media (max-width: 900px) {
  .docks { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .strang-teile { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
  .docks { grid-template-columns: 1fr; }
  .strang-teile { grid-template-columns: 1fr; }
}

/* ---- Aufklappbare Kurzanleitung in einer Etappe ---- */

.howto {
  margin-top: 14px;
  overflow: hidden;
  border: 1px solid var(--rule);
  border-radius: 14px;
  background: var(--ground);
}

.howto > summary {
  padding: 12px 18px;
  color: var(--accent-strong);
  font: 600 .84rem/1.4 var(--sans);
  cursor: pointer;
  list-style: none;
}

.howto > summary::-webkit-details-marker { display: none; }

.howto > summary::before {
  display: inline-block;
  margin-right: 9px;
  content: "▸";
  transition: transform .15s var(--ease);
}

.howto[open] > summary::before { transform: rotate(90deg); }
.howto[open] > summary { border-bottom: 1px solid var(--rule); }

.howto ol {
  margin: 0;
  padding: 14px 18px 4px 38px;
}

.howto li {
  margin-bottom: 9px;
  color: var(--ink-soft);
  font-size: .92rem;
  line-height: 1.6;
}

.howto li b { color: var(--ink); }

.howto-note {
  margin: 0;
  border-top: 1px solid var(--rule);
  background: var(--accent-tint);
  padding: 13px 18px;
  color: var(--ink-soft);
  font-size: .88rem;
  line-height: 1.6;
}

/* ---- Arbeitsteilung: Advoware vs. Schicht ---- */

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}

.split-col {
  border: 1px solid var(--rule);
  border-radius: 16px;
  background: var(--ground);
  padding: 20px 22px;
}

.split-col.is-layer {
  border-color: var(--accent-line);
  background: color-mix(in srgb, var(--accent) 4%, var(--ground));
}

.split-head {
  display: block;
  margin-bottom: 12px;
  font: 600 .68rem/1.4 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
}

.split-col .split-head { color: var(--ink-soft); }
.split-col.is-layer .split-head { color: var(--accent-text); }

.split-col ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.split-col li {
  padding: 8px 0 8px 20px;
  border-top: 1px solid var(--rule);
  font-size: .9rem;
  line-height: 1.5;
}

.split-col li:first-child { border-top: 0; }

.split-col li {
  position: relative;
}

.split-col li::before {
  position: absolute;
  left: 0;
  color: var(--ink-soft);
  content: "·";
}

.split-col.is-layer li::before { color: var(--accent); }

@media (max-width: 760px) {
  .split { grid-template-columns: 1fr; }
}

/* ---- Systemfrage: Apple als eigener Gedankengang, zwei Varianten ---- */

.variants {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.variant {
  border: 1px solid var(--rule);
  border-radius: 16px;
  background: var(--ground);
  padding: 22px 24px;
}

.variant-tag {
  display: block;
  margin-bottom: 8px;
  color: var(--ink-soft);
  font: 600 .66rem/1.4 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
}

.variant > b {
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 480;
  letter-spacing: -.01em;
}

.variant > p {
  max-width: 46ch;
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: .92rem;
  line-height: 1.6;
}

.pc {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
}

.pc-col span {
  display: block;
  margin-bottom: 8px;
  font: 600 .64rem/1.4 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
}

.pc-col.is-pro span { color: color-mix(in srgb, var(--status-ok) 55%, var(--ink)); }
.pc-col.is-con span { color: var(--accent-text); }

.pc-col ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.pc-col li {
  position: relative;
  padding: 0 0 7px 16px;
  font-size: .86rem;
  line-height: 1.5;
}

.pc-col li::before {
  position: absolute;
  left: 0;
  content: "+";
  font-weight: 600;
}

.pc-col.is-pro li::before { color: color-mix(in srgb, var(--status-ok) 55%, var(--ink)); content: "+"; }
.pc-col.is-con li::before { color: var(--accent); content: "–"; }

.variant-note {
  max-width: 74ch;
  margin-top: 22px;
  border-left: 2px solid var(--accent);
  padding: 6px 0 6px 20px;
  font-family: var(--serif);
  font-size: 1.06rem;
  font-style: italic;
  line-height: 1.55;
}

@media (max-width: 760px) {
  .variants { grid-template-columns: 1fr; }
}

/* ---- HITL: der Freigabe-Punkt zwischen Schicht und Rändern ---- */

/* display via Zustandsmaschine auf block gesetzt — hier spezifischer auf flex. */
.ziel[data-state="system"] .ziel-gate {
  display: flex;
  align-items: center;
  gap: 14px;
}

.ziel-gate {
  margin: 12px 0 6px;
  border: 1px solid var(--accent-line);
  border-radius: 12px;
  background: var(--accent-tint);
  padding: 12px 18px;
}

.gate-mark {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: .82rem;
  font-weight: 700;
}

.ziel-gate b {
  font-size: .94rem;
  font-weight: 600;
}

.ziel-gate span:not(.gate-mark) {
  display: block;
  color: var(--ink-soft);
  font-size: .85rem;
  line-height: 1.5;
}

/* ---- Zugang: wie er mit dem System arbeitet ---- */

.access {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}

.acc {
  display: grid;
  align-content: start;
  gap: 8px;
  border: 1px solid var(--rule);
  border-radius: 14px;
  background: var(--ground);
  padding: 18px;
}

.acc-tag {
  justify-self: start;
  border: 1px solid var(--rule);
  border-radius: var(--radius-pill);
  background: var(--paper-deep);
  padding: 4px 11px;
  color: var(--ink-soft);
  font: 600 .62rem/1.4 var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.acc-tag.is-now {
  border-color: color-mix(in srgb, var(--status-ok) 50%, transparent);
  background: color-mix(in srgb, var(--status-ok) 16%, transparent);
  color: color-mix(in srgb, var(--status-ok) 45%, var(--ink));
}

.acc b { font-size: 1rem; font-weight: 600; }

.acc p {
  color: var(--ink-soft);
  font-size: .87rem;
  line-height: 1.6;
}

.access-note {
  max-width: 62ch;
  margin-top: 20px;
  border-left: 2px solid var(--accent);
  padding: 4px 0 4px 18px;
  color: var(--ink);
  font-size: .96rem;
  line-height: 1.6;
}

@media (max-width: 860px) {
  .access { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 520px) {
  .access { grid-template-columns: 1fr; }
}