/* ==========================================================================
   OBSIDIAN BRAIN — Editorial Manuscript
   Mono-only. Hell. Obsidian-Lila als einziger Farb-Akzent.
   ========================================================================== */

/* --- Fonts (lokal, kein CDN, kein Tracking) ------------------------------- */
@font-face {
  font-family: 'Roboto Mono';
  font-style: normal;
  font-weight: 300 800;
  font-display: swap;
  src: url('../fonts/robotomono-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
    U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215,
    U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Roboto Mono';
  font-style: normal;
  font-weight: 300 800;
  font-display: swap;
  src: url('../fonts/robotomono-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF,
    U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113,
    U+2C60-2C7F, U+A720-A7FF;
}

/* --- Tokens --------------------------------------------------------------- */
:root {
  /* Palette */
  --paper: #F0EDE6;
  --paper-warm: #E8E3D8;
  --ink: #1C1B1A;
  --ink-muted: #6B6862;
  --ink-soft: #908B82;
  --line: #D9D4C8;
  --line-soft: #E5E0D3;
  --accent: #7C3AED;
  --accent-deep: #483699;
  --accent-soft: #E8E0FB;
  --code-bg: #1C1B1A;
  --code-fg: #E8E3D8;
  --code-comment: #6B6862;
  --code-purple: #B49AFF;
  --code-string: #C9C2B0;

  /* Type */
  --font-mono: 'Roboto Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;

  /* Sizing */
  --size-xs: 11px;
  --size-sm: 13px;
  --size-base: 15px;
  --size-md: 17px;
  --size-lg: 22px;
  --size-xl: 32px;
  --size-2xl: 44px;
  --size-3xl: 60px;
  --size-display: clamp(40px, 7vw, 80px);

  /* Space */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;

  /* Layout */
  --content-max: 720px;
  --sidenav-width: 200px;
  --page-max: 1180px;

  /* Motion */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

/* --- Reset ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: clip;
  max-width: 100%;
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: var(--size-base);
  line-height: 1.7;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  max-width: 100%;
  width: 100%;
  position: relative;
}
/* iOS Safari/Brave: overflow auf html/body greift unzuverlässig.
   Jede Section selbst clippen, damit nichts horizontal raushängen kann. */
.section, .hero-bleed, .basics, main, footer {
  max-width: 100%;
  overflow-x: clip;
}

/* Paper grain — subtile Textur über dem ganzen Body */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 100;
  opacity: 0.4;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.11  0 0 0 0 0.11  0 0 0 0 0.10  0 0 0 0.06 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
ul, ol { padding-left: 1.5em; }

/* Selection */
::selection { background: var(--accent); color: #fff; }

/* Scrollbar — subtil */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--paper); }
::-webkit-scrollbar-thumb { background: var(--line); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--ink-soft); }

/* --- Typography ----------------------------------------------------------- */
h1, h2, h3, h4 {
  font-weight: 700;
  letter-spacing: -0.02em;
  text-wrap: balance;
  margin: 0;
}
.h-display {
  font-size: var(--size-display);
  line-height: 1.02;
  letter-spacing: -0.035em;
  font-weight: 700;
}
h2 {
  font-size: clamp(var(--size-xl), 4.5vw, var(--size-2xl));
  line-height: 1.1;
  letter-spacing: -0.025em;
  margin-bottom: var(--space-5);
}
h3 {
  font-size: var(--size-lg);
  line-height: 1.25;
  letter-spacing: -0.015em;
}
p { margin: 0 0 var(--space-4); }
strong { font-weight: 700; color: var(--ink); }
em { font-style: normal; color: var(--accent-deep); font-weight: 500; }

.eyebrow {
  display: inline-block;
  font-size: var(--size-xs);
  font-weight: 500;
  color: var(--accent-deep);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}

.muted { color: var(--ink-muted); }
.lead {
  font-size: var(--size-md);
  line-height: 1.65;
  color: var(--ink-muted);
  max-width: 60ch;
}

/* --- Inline-Code --- */
:not(pre) > code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  background: var(--paper-warm);
  border: 1px solid var(--line);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--accent-deep);
}

/* ==========================================================================
   Layout — Side-Nav + Reading Column
   ========================================================================== */

.page {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

@media (min-width: 1000px) {
  .page {
    display: grid;
    grid-template-columns: var(--sidenav-width) 1fr;
    gap: var(--space-9);
    padding: 0 var(--space-7);
  }
}

.content {
  width: 100%;
  max-width: var(--content-max);
  padding: var(--space-8) 0 var(--space-10);
}

/* --- Top Progress Bar (Mobile/Tablet) -------------------------------------- */
.progress-bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--line-soft);
  z-index: 50;
}
.progress-bar__fill {
  height: 100%;
  background: var(--accent);
  width: 0%;
  transition: width 0.15s linear;
}
@media (min-width: 1000px) {
  .progress-bar { display: none; }
}

/* --- Side-Nav (Floating Card) -------------------------------------------- */
.sidenav {
  display: none;
}
@media (min-width: 1000px) {
  .sidenav {
    display: block;
    position: sticky;
    top: var(--space-6);
    align-self: start;
    margin-top: var(--space-8);
    max-height: calc(100vh - var(--space-7));
    overflow-y: auto;
    padding: var(--space-5) var(--space-5) var(--space-5);
    background: rgba(248, 246, 240, 0.85);
    backdrop-filter: blur(12px) saturate(120%);
    -webkit-backdrop-filter: blur(12px) saturate(120%);
    border: 1px solid var(--line);
    border-radius: 10px;
    box-shadow:
      0 1px 0 rgba(255,255,255,0.6) inset,
      0 12px 40px -16px rgba(28,27,26,0.18),
      0 2px 4px -2px rgba(28,27,26,0.06);
    opacity: 0;
    transform: translateX(-10px);
    transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out);
  }
  .sidenav.is-visible {
    opacity: 1;
    transform: translateX(0);
  }
  /* Scrollbar im Card unsichtbar machen */
  .sidenav::-webkit-scrollbar { width: 0; }
}

.sidenav__brand {
  font-size: var(--size-xs);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.sidenav__brand::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 2px;
  transform: rotate(45deg);
  box-shadow: 0 0 0 2px var(--accent-soft);
}
.sidenav__sub {
  font-size: 10px;
  color: var(--ink-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--line);
}

.sidenav__list {
  list-style: none;
  padding: 0;
  margin: 0;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* Sliding Indicator — animiert zwischen aktiven Items */
.sidenav__indicator {
  position: absolute;
  left: -5px;
  top: 0;
  width: 3px;
  height: 0;
  background: var(--accent);
  border-radius: 2px;
  transition: top 0.45s var(--ease-out), height 0.45s var(--ease-out);
  box-shadow: 0 0 12px rgba(124, 58, 237, 0.5);
  z-index: 1;
}

.sidenav__item a {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  padding: 8px 8px 8px 10px;
  margin-left: -10px;
  font-size: var(--size-xs);
  color: var(--ink-muted);
  letter-spacing: 0.04em;
  line-height: 1.45;
  transition: color 0.25s var(--ease-out), background 0.25s var(--ease-out);
  position: relative;
  border-radius: 4px;
}
.sidenav__num {
  font-weight: 500;
  color: var(--ink-soft);
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}
.sidenav__item a:hover {
  color: var(--ink);
  background: rgba(124, 58, 237, 0.06);
}
.sidenav__item a:hover .sidenav__num {
  color: var(--accent-deep);
}
.sidenav__item.is-active a {
  color: var(--ink);
  font-weight: 700;
  background: var(--accent-soft);
}
.sidenav__item.is-active .sidenav__num {
  color: var(--accent);
}

/* ==========================================================================
   Section Base
   ========================================================================== */

.section {
  padding: var(--space-9) 0;
  border-top: 1px solid var(--line);
}
.section:first-child {
  border-top: none;
  padding-top: var(--space-7);
}
.section__head {
  margin-bottom: var(--space-7);
}

/* --- Reveal Animation ----------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* ==========================================================================
   FULL-BLEED HERO IMAGE (vor .page, edge-to-edge)
   ========================================================================== */

.hero-bleed {
  position: relative;
  width: 100%;
  margin: 0;
  overflow: hidden;
  background: var(--paper-warm);
}
.hero-bleed__inner {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 92vh;
  overflow: hidden;
}
.hero-bleed__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 110%;
  object-fit: cover;
  object-position: center;
  will-change: transform;
  transform: translate3d(0, 0, 0);
  transition: transform 0.05s linear;
}

/* Vignette oben + unten für Lesbarkeit der Overlays */
.hero-bleed::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(28,27,26,0.20) 0%, transparent 18%, transparent 70%, rgba(240,237,230,0.95) 100%);
  z-index: 2;
}

/* Top-Left Brand Marker */
.hero-bleed__brand {
  position: absolute;
  top: clamp(20px, 3vw, 36px);
  left: clamp(20px, 4vw, 56px);
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: var(--size-xs);
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #fff;
  mix-blend-mode: difference;
}
.hero-bleed__mark {
  display: inline-block;
  width: 10px;
  height: 10px;
  background: var(--accent);
  transform: rotate(45deg);
  box-shadow: 0 0 0 2px rgba(255,255,255,0.0);
}

/* Top-Right Counter */
.hero-bleed__counter {
  position: absolute;
  top: clamp(20px, 3vw, 36px);
  right: clamp(20px, 4vw, 56px);
  z-index: 3;
  font-size: var(--size-xs);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #fff;
  mix-blend-mode: difference;
  display: flex;
  align-items: center;
  gap: 8px;
}
.hero-bleed__counter b {
  font-weight: 700;
  color: var(--accent);
}

/* Scroll-Indikator unten */
.hero-bleed__scroll {
  position: absolute;
  bottom: clamp(20px, 3vw, 40px);
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: var(--size-xs);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 500;
}
.hero-bleed__scroll-line {
  width: 1px;
  height: 56px;
  background: linear-gradient(180deg, transparent 0%, var(--ink) 100%);
  position: relative;
  overflow: hidden;
}
.hero-bleed__scroll-line::after {
  content: '';
  position: absolute;
  top: -56px;
  left: 0;
  width: 1px;
  height: 56px;
  background: var(--accent);
  animation: scroll-line 2s var(--ease-in-out) infinite;
}
@keyframes scroll-line {
  0% { transform: translateY(0); }
  100% { transform: translateY(112px); }
}

/* Mobile: Bild in echter Aspect-Ratio, kein Crop, kein Parallax, kein Scroll-Indikator */
@media (max-width: 700px) {
  .hero-bleed__inner {
    aspect-ratio: auto !important;
    max-height: none !important;
    height: auto !important;
  }
  .hero-bleed__img {
    position: static !important;
    width: 100% !important;
    height: auto !important;
    transform: none !important;
    will-change: auto;
  }
  .hero-bleed__scroll {
    display: none !important;
  }
  .hero-bleed__brand,
  .hero-bleed__counter {
    display: none !important;
  }
  .hero-bleed::after {
    background: linear-gradient(180deg, transparent 0%, transparent 75%, rgba(240,237,230,0.95) 100%) !important;
  }
}

/* ==========================================================================
   Section 01 — Hero Mega Headline
   ========================================================================== */

.hero {
  padding: var(--space-8) 0 var(--space-9);
  border-top: none;
}
.hero__mega {
  position: relative;
}
.hero__eyebrow {
  display: inline-block;
  font-size: var(--size-xs);
  font-weight: 500;
  color: var(--accent-deep);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: var(--space-5);
  padding: 6px 12px;
  border: 1px solid var(--accent-soft);
  border-radius: 99px;
  background: var(--paper-warm);
}

.h-mega {
  font-family: var(--font-mono);
  font-size: clamp(36px, 11vw, 144px);
  line-height: 0.90;
  letter-spacing: -0.05em;
  font-weight: 700;
  margin: 0 0 var(--space-7);
  text-wrap: balance;
  word-break: keep-all;
  max-width: 100%;
}
@media (max-width: 700px) {
  .h-mega {
    font-size: clamp(34px, 9.5vw, 56px);
    letter-spacing: -0.04em;
    line-height: 0.95;
    word-break: normal;
    overflow-wrap: anywhere;
  }
  .h-mega__line:nth-child(2) {
    padding-left: 0 !important;
  }
}
.h-mega__line {
  display: block;
  opacity: 0;
  transform: translateY(40px);
  animation: mega-rise 0.9s var(--ease-out) forwards;
}
.h-mega__line:nth-child(1) { animation-delay: 0.05s; }
.h-mega__line:nth-child(2) { animation-delay: 0.18s; padding-left: clamp(20px, 5vw, 80px); }
.h-mega__line:nth-child(3) { animation-delay: 0.32s; }
.h-mega__line--accent {
  color: var(--accent);
  font-style: italic;
  position: relative;
  display: inline-block;
  width: fit-content;
  max-width: 100%;
}
.h-mega__line--accent::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.06em;
  height: 0.08em;
  background: var(--accent-deep);
  opacity: 0.15;
  transform: scaleX(0);
  transform-origin: left;
  animation: mega-underline 1s var(--ease-out) forwards;
  animation-delay: 1s;
}
@keyframes mega-rise {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes mega-underline {
  to { transform: scaleX(1); }
}
@media (prefers-reduced-motion: reduce) {
  .h-mega__line { opacity: 1; transform: none; animation: none; }
  .h-mega__line--accent::after { transform: scaleX(1); animation: none; }
}

.hero__split {
  display: grid;
  gap: var(--space-6);
  margin-bottom: var(--space-7);
  padding-top: var(--space-5);
  border-top: 1px solid var(--line);
}
@media (min-width: 800px) {
  .hero__split {
    grid-template-columns: 1fr auto;
    align-items: end;
  }
}
.hero__sub {
  font-size: var(--size-md);
  color: var(--ink-muted);
  max-width: 56ch;
  margin: 0;
  line-height: 1.65;
}
.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  padding-top: var(--space-5);
  border-top: 1px solid var(--line);
  font-size: var(--size-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.hero__meta span {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
}
.hero__meta b {
  font-size: var(--size-lg);
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
}

/* --- Buttons -------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 14px 22px;
  border-radius: 6px;
  font-size: var(--size-sm);
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: all 0.25s var(--ease-out);
  border: 1px solid transparent;
}
.btn--primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 1px 0 var(--accent-deep), 0 6px 24px -8px rgba(124, 58, 237, 0.5);
}
.btn--primary:hover {
  background: var(--accent-deep);
  transform: translateY(-1px);
  box-shadow: 0 1px 0 #2a1f5e, 0 10px 28px -8px rgba(124, 58, 237, 0.6);
}
.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}
.btn--ghost:hover {
  background: var(--ink);
  color: var(--paper);
}
.btn__arrow {
  transition: transform 0.25s var(--ease-out);
}
.btn:hover .btn__arrow { transform: translateX(2px); }
.btn--primary:hover .btn__arrow--down { transform: translateY(2px); }

/* ==========================================================================
   Section 01 — Basics (Was ist Obsidian?)
   ========================================================================== */

.basics {
  display: grid;
  gap: var(--space-4);
  margin: var(--space-6) 0 var(--space-5);
}
@media (min-width: 700px) {
  .basics {
    grid-template-columns: 1fr 1fr;
  }
  .basics__card--accent {
    grid-column: 1 / -1;
  }
}
.basics__card {
  padding: var(--space-5) var(--space-5);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper-warm);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  transition: border-color 0.25s var(--ease-out), transform 0.25s var(--ease-out);
}
.basics__card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.basics__card--accent {
  background:
    linear-gradient(135deg, rgba(124, 58, 237, 0.05) 0%, rgba(72, 54, 153, 0.03) 100%),
    var(--paper-warm);
  border-color: var(--accent-soft);
  border-left: 3px solid var(--accent);
}
.basics__label {
  font-size: var(--size-xs);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-deep);
}
.basics__title {
  font-size: var(--size-md);
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.015em;
  line-height: 1.3;
}
.basics__body {
  font-size: var(--size-sm);
  color: var(--ink-muted);
  margin: 0;
  line-height: 1.7;
}
.basics__ways {
  list-style: none;
  padding: 0;
  margin: var(--space-2) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.basics__ways li {
  position: relative;
  padding: var(--space-3) var(--space-4) var(--space-3) var(--space-6);
  font-size: var(--size-sm);
  color: var(--ink);
  line-height: 1.65;
  background: var(--paper);
  border-radius: 6px;
  border: 1px solid var(--line-soft);
}
.basics__ways li::before {
  content: '';
  position: absolute;
  left: var(--space-4);
  top: 1.45em;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 1px;
  transform: rotate(45deg);
}
.basics__ways b {
  display: block;
  color: var(--ink);
  margin-bottom: 2px;
}
.basics__tldr {
  margin-top: var(--space-5);
  padding: var(--space-4) var(--space-5);
  background: var(--ink);
  color: var(--paper-warm);
  font-size: var(--size-sm);
  line-height: 1.6;
  border-radius: 6px;
  letter-spacing: -0.005em;
}
.basics__tldr b {
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: var(--size-xs);
  margin-right: 8px;
}

/* ==========================================================================
   Section 02 — Failures
   ========================================================================== */

.failures {
  display: grid;
  gap: var(--space-5);
  margin: var(--space-6) 0 var(--space-7);
}
.failure {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-5);
  padding: var(--space-5) 0;
  border-top: 1px solid var(--line-soft);
}
.failure {
  grid-template-columns: 72px 1fr;
}
.failure__num {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 1.2px var(--accent);
  letter-spacing: -0.05em;
  line-height: 0.9;
  padding-top: 4px;
  font-variant-numeric: tabular-nums;
}
.failure__title {
  font-size: var(--size-md);
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}
.failure__body {
  font-size: var(--size-sm);
  color: var(--ink-muted);
  line-height: 1.65;
  margin: 0;
}

/* --- Pull-Quote ----------------------------------------------------------- */
.pullquote {
  margin: var(--space-7) 0;
  padding: var(--space-3) 0 var(--space-3) var(--space-5);
  border-left: 2px solid var(--accent);
  font-size: var(--size-md);
  line-height: 1.5;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.01em;
  font-style: normal;
}
.pullquote cite {
  display: block;
  margin-top: var(--space-3);
  font-size: var(--size-xs);
  font-weight: 400;
  color: var(--ink-muted);
  font-style: normal;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ==========================================================================
   Section 03 — Architecture (ASCII Pipeline)
   ========================================================================== */

.arch {
  margin-top: var(--space-6);
  display: grid;
  gap: var(--space-6);
}
.arch__diagram {
  padding: var(--space-6);
  background: var(--code-bg);
  color: var(--code-fg);
  border-radius: 8px;
  font-size: var(--size-sm);
  line-height: 1.5;
  overflow-x: auto;
  white-space: pre;
  position: relative;
}
.arch__diagram .a-label {
  color: var(--code-purple);
  font-weight: 700;
}
.arch__diagram .a-arrow {
  color: var(--accent);
  animation: arrow-pulse 2.4s var(--ease-in-out) infinite;
}
.arch__diagram .a-item {
  color: var(--code-string);
}
@keyframes arrow-pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

.arch__layers {
  display: grid;
  gap: var(--space-4);
}
.arch__layer {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: var(--space-5);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--line-soft);
}
.arch__layer-label {
  font-size: var(--size-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-deep);
  padding-top: 2px;
}
.arch__layer-body {
  font-size: var(--size-sm);
  color: var(--ink-muted);
  margin: 0;
}

/* ==========================================================================
   Section 04 — Requirements (Two-Track List)
   ========================================================================== */

.tracks {
  display: grid;
  gap: var(--space-6);
  margin: var(--space-6) 0;
}
@media (min-width: 640px) {
  .tracks { grid-template-columns: 1fr 1fr; }
}
.track {
  padding: var(--space-5);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper-warm);
}
.track--advanced {
  background: transparent;
  border-style: dashed;
}
.track__label {
  font-size: var(--size-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-deep);
  margin-bottom: var(--space-4);
}
.track__list {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: var(--size-sm);
  line-height: 1.9;
}
.track__list li {
  padding-left: var(--space-4);
  position: relative;
  color: var(--ink);
}
.track__list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 500;
}
.track--advanced .track__list li { color: var(--ink-muted); }

.tracks__note {
  font-size: var(--size-sm);
  color: var(--ink-muted);
  margin-top: var(--space-3);
}

/* ==========================================================================
   Section 05 — Six Steps
   ========================================================================== */

.steps {
  display: grid;
  gap: var(--space-8);
  margin-top: var(--space-6);
}
.step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: var(--space-5);
  align-items: start;
}
@media (max-width: 640px) {
  .step { grid-template-columns: 1fr; gap: var(--space-3); }
}
.step__num {
  font-size: clamp(48px, 6vw, 72px);
  font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--accent);
  letter-spacing: -0.06em;
  line-height: 0.85;
  padding-top: 0;
  font-variant-numeric: tabular-nums;
  position: relative;
  transition: color 0.4s var(--ease-out), -webkit-text-stroke-color 0.4s var(--ease-out);
}
.step:hover .step__num,
.step[data-reveal].is-visible .step__num {
  color: var(--accent);
  -webkit-text-stroke-color: var(--accent-deep);
}
.step__title {
  font-size: var(--size-lg);
  font-weight: 700;
  margin-bottom: var(--space-3);
  letter-spacing: -0.015em;
}
.step__body p {
  color: var(--ink-muted);
  font-size: var(--size-sm);
  margin-bottom: var(--space-4);
}

/* --- Code Block ----------------------------------------------------------- */
.codeblock {
  position: relative;
  background: var(--code-bg);
  color: var(--code-fg);
  padding: var(--space-5) 0;
  border-radius: 8px;
  font-size: var(--size-sm);
  line-height: 1.65;
  margin: var(--space-4) 0;
  overflow: hidden;
  max-width: 100%;
}
.codeblock__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin: 0 var(--space-5) var(--space-3);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.codeblock__label {
  font-size: var(--size-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--code-comment);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}
.codeblock__label::before {
  content: '$ ';
  color: var(--accent);
}
.codeblock pre {
  margin: 0;
  padding: 0 var(--space-5);
  font-family: var(--font-mono);
  font-size: var(--size-sm);
  line-height: 1.65;
  white-space: pre;
  color: var(--code-fg);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
/* Mobile: Codeblöcke brechen um statt zu scrollen.
   Kein horizontaler Scroll mehr nötig, alles immer sichtbar. */
@media (max-width: 700px) {
  .codeblock {
    font-size: 12px;
    padding: var(--space-4) 0;
  }
  .codeblock__head {
    margin: 0 var(--space-4) var(--space-3);
  }
  .codeblock pre {
    padding: 0 var(--space-4);
    font-size: 12px;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-word;
    overflow-wrap: anywhere;
    overflow-x: hidden;
  }
}
.codeblock .c-comment { color: var(--code-comment); }
.codeblock .c-key { color: var(--code-purple); font-weight: 500; }
.codeblock .c-string { color: var(--code-string); }
.codeblock .c-path { color: #C4A8FF; }

/* Copy Button */
.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-size: var(--size-xs);
  color: var(--code-comment);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 4px;
  background: transparent;
  transition: all 0.2s var(--ease-out);
  cursor: pointer;
}
.copy-btn:hover {
  color: var(--code-fg);
  border-color: var(--accent);
}
.copy-btn.is-copied {
  color: var(--accent);
  border-color: var(--accent);
}
.copy-btn__check {
  opacity: 0;
  transform: scale(0.6);
  transition: opacity 0.2s, transform 0.2s var(--ease-out);
}
.copy-btn.is-copied .copy-btn__check { opacity: 1; transform: scale(1); }
.copy-btn.is-copied .copy-btn__label::after { content: 'kopiert'; }
.copy-btn .copy-btn__label::after { content: 'copy'; }

/* ==========================================================================
   Section 06 — Power-Prompts Grid
   ========================================================================== */

.prompts {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-6);
}
@media (min-width: 700px) {
  .prompts { grid-template-columns: 1fr 1fr; }
}
.prompt {
  padding: var(--space-5);
  background: var(--paper-warm);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  transition: border-color 0.25s, transform 0.25s var(--ease-out);
}
.prompt:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.prompt__title {
  font-size: var(--size-md);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0;
}
.prompt__desc {
  font-size: var(--size-sm);
  color: var(--ink-muted);
  margin: 0;
  flex: 1;
  line-height: 1.6;
}
.prompt__copy {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  font-size: var(--size-xs);
  color: var(--ink);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--paper);
  transition: all 0.2s var(--ease-out);
  cursor: pointer;
}
.prompt__copy:hover {
  border-color: var(--accent);
  color: var(--accent-deep);
}
.prompt__copy.is-copied {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ==========================================================================
   Section 07 — Download
   ========================================================================== */

.download {
  margin-top: var(--space-6);
  padding: var(--space-7);
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  color: #fff;
  border-radius: 12px;
  position: relative;
  overflow: hidden;
}
.download::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 80% 20%, rgba(255,255,255,0.12), transparent 50%),
    radial-gradient(circle at 20% 80%, rgba(255,255,255,0.06), transparent 50%);
  pointer-events: none;
}
.download__inner { position: relative; z-index: 1; }
.download__label {
  font-size: var(--size-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.7;
  margin-bottom: var(--space-3);
}
.download__title {
  font-size: var(--size-xl);
  font-weight: 700;
  margin-bottom: var(--space-3);
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.download__desc {
  font-size: var(--size-sm);
  opacity: 0.85;
  margin-bottom: var(--space-5);
  max-width: 50ch;
}
.download__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 14px 22px;
  background: #fff;
  color: var(--accent-deep);
  font-weight: 500;
  font-size: var(--size-sm);
  letter-spacing: 0.02em;
  border-radius: 6px;
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s;
}
.download__cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 28px -8px rgba(0,0,0,0.35);
}
.download__contents {
  margin-top: var(--space-6);
  padding-top: var(--space-5);
  border-top: 1px solid rgba(255,255,255,0.15);
  font-size: var(--size-sm);
  opacity: 0.9;
}
.download__contents-label {
  font-size: var(--size-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.7;
  margin-bottom: var(--space-3);
}
.download__contents ul {
  list-style: none;
  padding: 0;
  margin: 0;
  line-height: 1.9;
}
.download__contents li::before {
  content: '→ ';
  opacity: 0.6;
}
.download__license {
  margin-top: var(--space-5);
  font-size: var(--size-xs);
  opacity: 0.6;
}

/* ==========================================================================
   Section 08 — Compound Effect
   ========================================================================== */

.compound {
  display: grid;
  gap: var(--space-5);
  margin: var(--space-6) 0;
}
@media (min-width: 700px) {
  .compound { grid-template-columns: repeat(3, 1fr); }
}
.compound__stage {
  padding: var(--space-5) 0;
  border-top: 2px solid var(--accent);
}
.compound__time {
  font-size: var(--size-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-deep);
  margin-bottom: var(--space-3);
}
.compound__text {
  font-size: var(--size-sm);
  color: var(--ink);
  line-height: 1.6;
  margin: 0;
}

/* ==========================================================================
   Section 09 — Onramp (5 Notes)
   ========================================================================== */

.onramp__list {
  list-style: none;
  padding: 0;
  margin: var(--space-5) 0 var(--space-6);
  counter-reset: step;
}
.onramp__list li {
  counter-increment: step;
  padding: var(--space-3) 0 var(--space-3) var(--space-7);
  position: relative;
  font-size: var(--size-sm);
  color: var(--ink);
  line-height: 1.6;
}
.onramp__list li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: var(--space-3);
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-soft);
  color: var(--accent-deep);
  font-size: var(--size-xs);
  font-weight: 700;
  border-radius: 50%;
}

/* ==========================================================================
   Section 10 — Advanced
   ========================================================================== */

.advanced {
  display: grid;
  gap: var(--space-4);
  margin: var(--space-6) 0;
}
@media (min-width: 700px) {
  .advanced { grid-template-columns: 1fr 1fr; }
}
.adv-card {
  padding: var(--space-4) var(--space-5);
  border: 1px dashed var(--line);
  border-radius: 6px;
  transition: border-color 0.25s, background 0.25s;
}
.adv-card:hover {
  border-color: var(--accent);
  border-style: solid;
  background: var(--paper-warm);
}
.adv-card__title {
  font-size: var(--size-sm);
  font-weight: 700;
  margin-bottom: var(--space-2);
}
.adv-card__title a {
  color: var(--ink);
  border-bottom: 1px dotted var(--ink-muted);
}
.adv-card__title a:hover {
  color: var(--accent-deep);
  border-color: var(--accent);
}
.adv-card__body {
  font-size: var(--size-sm);
  color: var(--ink-muted);
  margin: 0;
  line-height: 1.6;
}

/* ==========================================================================
   Section 11 — FAQ Accordion
   ========================================================================== */

.faq {
  margin-top: var(--space-6);
}
.faq details {
  border-top: 1px solid var(--line);
  padding: var(--space-4) 0;
}
.faq details:last-of-type {
  border-bottom: 1px solid var(--line);
}
.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--size-md);
  font-weight: 500;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  padding: var(--space-2) 0;
  letter-spacing: -0.005em;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: '+';
  font-size: var(--size-lg);
  color: var(--accent);
  font-weight: 400;
  transition: transform 0.25s var(--ease-out);
}
.faq details[open] summary::after {
  content: '−';
  transform: rotate(180deg);
}
.faq__body {
  padding: var(--space-3) 0 var(--space-2);
  font-size: var(--size-sm);
  color: var(--ink-muted);
  line-height: 1.7;
  max-width: 65ch;
}
.faq__body p { margin-bottom: var(--space-3); }
.faq__body p:last-child { margin-bottom: 0; }

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  border-top: 1px solid var(--line);
  padding: var(--space-7) 0 var(--space-8);
  margin-top: var(--space-7);
}
.footer__main {
  font-size: var(--size-sm);
  color: var(--ink);
  margin-bottom: var(--space-3);
}
.footer__main a {
  color: var(--accent-deep);
  border-bottom: 1px solid var(--accent-soft);
  font-weight: 500;
}
.footer__main a:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.footer__meta {
  display: flex;
  gap: var(--space-5);
  font-size: var(--size-xs);
  color: var(--ink-muted);
  letter-spacing: 0.04em;
  flex-wrap: wrap;
}
.footer__meta a {
  color: var(--ink-muted);
}
.footer__meta a:hover {
  color: var(--accent-deep);
}

/* ==========================================================================
   Utility / Helpers
   ========================================================================== */

.hidden { display: none !important; }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}