/* Konzept 05 — Die eine Linie
   Papier + Tusche, monastisch-editorial. Eine Zinnober-Akzentfarbe (Siegel + CTA). */

:root {
  --paper: #F3EEE3;
  --paper-deep: #E9E2D1;
  --ink: #221F1B;
  --ink-soft: #3B362E;
  --muted: #6E665A;
  --hairline: rgba(34, 31, 27, .16);
  --vermillion: #B5402F;
  --vermillion-deep: #9C3423;
  --ease-out: cubic-bezier(.22, 1, .36, 1);
  --serif: "Cormorant Garamond", Georgia, serif;
  --sans: "Inter", -apple-system, sans-serif;
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: rgba(181, 64, 47, .18); }

/* ---------- fixed layers ---------- */

#ink {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
  pointer-events: none;
}
.mottle {
  position: fixed; inset: 0; z-index: 0;
  pointer-events: none;
  opacity: .8;
}
.grain {
  position: fixed; inset: 0; z-index: 2;
  pointer-events: none;
  mix-blend-mode: soft-light;
  opacity: .55;
}
.vignette {
  position: fixed; inset: 0; z-index: 2;
  pointer-events: none;
  background: radial-gradient(ellipse 120% 105% at 50% 42%, transparent 58%, rgba(96, 78, 50, .10) 100%);
}

main, footer { position: relative; z-index: 3; }

/* ---------- appear choreography ---------- */

[data-appear] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 1.1s var(--ease-out), transform 1.1s var(--ease-out);
}
[data-appear].in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  [data-appear] { opacity: 1; transform: none; transition: none; }
}

/* ---------- nav ---------- */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.4rem clamp(1.4rem, 4vw, 3.4rem) 1.1rem;
  background: linear-gradient(to bottom, var(--paper) 42%, rgba(243, 238, 227, 0));
}
.brand {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.06rem;
  letter-spacing: .04em;
  color: var(--ink);
  text-decoration: none;
  padding: .5rem 0;
}
.nav-links { display: flex; gap: 2.2rem; }
.nav-links a, .nav-cta {
  font-size: .74rem;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  padding: .8rem 0;
  transition: color .35s var(--ease-out);
}
.nav-links a:hover, .nav-links a:focus-visible { color: var(--ink); }
.nav-cta {
  color: var(--ink);
  border-bottom: 1px solid var(--hairline);
}
.nav-cta:hover, .nav-cta:focus-visible { border-color: var(--ink); }

/* ---------- shared type ---------- */

.eyebrow {
  font-size: .68rem;
  font-weight: 500;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1.6rem;
}
.eyebrow.centered { text-align: center; }

h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(2.1rem, 3.8vw, 3.3rem);
  line-height: 1.08;
  letter-spacing: -.005em;
  color: var(--ink);
  text-wrap: balance;
}
h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.42rem;
  line-height: 1.2;
  margin-bottom: .55rem;
}

.wrap {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 clamp(1.4rem, 5vw, 3rem);
}

.text-link {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 31, 27, .38);
  padding-bottom: .1em;
  transition: border-color .35s var(--ease-out);
}
.text-link:hover, .text-link:focus-visible { border-color: var(--ink); }

.more { margin-top: 2.8rem; font-size: .95rem; }

.section-intro {
  max-width: 34em;
  color: var(--ink-soft);
  margin-top: 1.4rem;
}

/* ---------- hero ---------- */

.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6.5rem clamp(1.4rem, 5vw, 3rem) 7.5rem;
  position: relative;
}
.hero .eyebrow { margin-bottom: 2.4rem; }
.hero h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(3rem, 8vw, 7.4rem);
  line-height: 1.02;
  letter-spacing: -.01em;
  text-wrap: balance;
}
.hero h1 em {
  font-style: italic;
  font-weight: 500;
}
.hero-below {
  margin-top: clamp(4.5rem, 9vh, 7rem);
  max-width: 660px;
}
.lead {
  font-family: var(--serif);
  font-size: clamp(1.22rem, 1.9vw, 1.42rem);
  line-height: 1.55;
  color: var(--ink-soft);
  text-wrap: balance;
}
.meta {
  margin-top: 1.6rem;
  font-size: .74rem;
  letter-spacing: .05em;
  color: var(--muted);
}
.hero-ctas {
  margin-top: 2.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2.2rem;
  flex-wrap: wrap;
}
.btn-ghost {
  display: inline-block;
  padding: 1rem 2.1rem;
  border: 1px solid rgba(34, 31, 27, .45);
  border-radius: 2px;
  color: var(--ink);
  text-decoration: none;
  font-size: .92rem;
  font-weight: 500;
  letter-spacing: .03em;
  transition: border-color .35s var(--ease-out), background .35s var(--ease-out);
}
.btn-ghost:hover, .btn-ghost:focus-visible { border-color: var(--ink); background: rgba(34, 31, 27, .04); }
.link-quiet {
  color: var(--muted);
  font-size: .92rem;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding: .6rem 0;
  transition: color .35s var(--ease-out), border-color .35s var(--ease-out);
}
.link-quiet:hover, .link-quiet:focus-visible { color: var(--ink); border-color: var(--hairline); }

.scroll-hint {
  position: absolute;
  bottom: 1.4rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .7rem;
  font-size: .62rem;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--muted);
}
.hint-line {
  width: 1px;
  height: 44px;
  background: linear-gradient(to bottom, rgba(34,31,27,.4), transparent);
  animation: hint 3.4s var(--ease-out) infinite;
  transform-origin: top;
}
@keyframes hint {
  0% { transform: scaleY(0); opacity: 0; }
  35% { transform: scaleY(1); opacity: 1; }
  75% { transform: scaleY(1); opacity: 0; }
  100% { transform: scaleY(0); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) { .hint-line { animation: none; } }

/* ---------- method ---------- */

.method { padding: 30vh 0 24vh; }
.knockout {
  font-size: clamp(2.5rem, 5.4vw, 4.9rem);
  font-weight: 500;
  line-height: 1.06;
  display: inline-block;
  padding: .18em .1em;
  transition: color .8s var(--ease-out);
}
.knockout.inked { color: var(--paper); }
@media (prefers-reduced-motion: reduce) { .knockout { color: var(--paper); transition: none; } }

.method-cols {
  margin-top: 4.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  max-width: 980px;
  color: var(--ink-soft);
}
.method-cols p:first-child::first-letter {
  font-family: var(--serif);
  font-size: 3.3em;
  line-height: .78;
  float: left;
  padding: .08em .12em 0 0;
  color: var(--ink);
}

/* ---------- courses ---------- */

.courses { padding: 12vh 0 20vh; }
.cards {
  margin-top: 4.2rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(2rem, 4vw, 3.6rem);
}
.card {
  border-top: 1px solid var(--hairline);
  padding-top: 1.8rem;
}
.card-num {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--muted);
  display: block;
  margin-bottom: 1.9rem;
}
.card p { color: var(--ink-soft); font-size: .96rem; margin-bottom: 1.6rem; }
.card .text-link { font-size: .92rem; }

/* ---------- zpp ---------- */

.zpp { padding: 14vh 0 18vh; }
.zpp-head { max-width: 620px; }
.zpp-steps {
  list-style: none;
  margin-top: 4.4rem;
  max-width: 640px;
  margin-left: clamp(0rem, 6vw, 5.5rem);
}
.zpp-step {
  display: grid;
  grid-template-columns: 74px 1fr;
  gap: 1.4rem;
  padding: 2.1rem 0;
  border-top: 1px solid var(--hairline);
}
.zpp-step:last-child { border-bottom: 1px solid var(--hairline); }
.step-num {
  font-family: var(--serif);
  font-size: 1.9rem;
  font-weight: 500;
  color: rgba(34, 31, 27, .34);
  line-height: 1;
  padding-top: .2rem;
  font-variant-numeric: lining-nums;
}
.zpp-step h3 { font-size: 1.3rem; }
.zpp-step p { color: var(--ink-soft); font-size: .95rem; }
.disclaimer {
  margin-top: 3.4rem;
  max-width: 620px;
  font-size: .8rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- enso ---------- */

.enso { padding: 16vh 0 14vh; display: flex; flex-direction: column; align-items: center; }
.enso .eyebrow { margin-bottom: 0; }
.enso-wrap {
  width: min(660px, 82vw);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  margin: 1.5rem auto 0;
}
.enso-statement {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 500;
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  line-height: 1.5;
  text-align: center;
  color: var(--ink);
  max-width: 76%;
}

/* ---------- about ---------- */

.about { padding: 10vh 0 20vh; }
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  gap: clamp(3rem, 7vw, 6.5rem);
  align-items: start;
}
.about-text { max-width: 36em; color: var(--ink-soft); margin-top: 2.2rem; }
.about-quote {
  margin-top: 3.2rem;
  padding-left: 1.8rem;
  border-left: 2px solid rgba(34, 31, 27, .5);
}
.about-quote p {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.3rem, 2vw, 1.65rem);
  line-height: 1.42;
  color: var(--ink);
}
.about-creds { padding-top: .4rem; }
.about-creds ul { list-style: none; }
.about-creds li {
  padding: 1.05rem 0;
  border-top: 1px solid var(--hairline);
  font-size: .9rem;
  color: var(--ink-soft);
}
.about-creds li:last-child { border-bottom: 1px solid var(--hairline); }

/* ---------- closing ---------- */

.closing {
  padding: 22vh clamp(1.4rem, 5vw, 3rem) 26vh;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.closing h2 { font-size: clamp(2.3rem, 4.6vw, 4rem); max-width: 14em; }
.closing-text { max-width: 34em; margin-top: 1.8rem; color: var(--ink-soft); }
.cta-row {
  margin-top: 3.4rem;
  display: flex;
  align-items: center;
  gap: clamp(3rem, 7vw, 5.5rem);
}
.btn-primary {
  display: inline-block;
  background: var(--vermillion);
  color: #F7F2E7;
  text-decoration: none;
  padding: 1.15rem 2.5rem;
  border-radius: 2px;
  font-size: .95rem;
  font-weight: 500;
  letter-spacing: .03em;
  transition: background .35s var(--ease-out);
}
.btn-primary:hover, .btn-primary:focus-visible { background: var(--vermillion-deep); }
.closing-alt { margin-top: 2.6rem; font-size: .88rem; color: var(--muted); }

/* seal */
.seal {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .8rem;
  opacity: 0;
  transform: scale(.9) rotate(-4deg);
  transition: opacity .9s var(--ease-out), transform .9s var(--ease-out);
}
.seal.in { opacity: 1; transform: rotate(-2deg); }
@media (prefers-reduced-motion: reduce) { .seal { opacity: 1; transform: rotate(-2deg); transition: none; } }
.seal svg { width: 74px; height: 74px; display: block; }
.seal-glyph {
  font-family: "Hiragino Mincho ProN", "Yu Mincho", "Noto Serif SC", serif;
  font-size: 30px;
  fill: #F3EEE3;
  text-anchor: middle;
}
.seal-caption {
  font-size: .58rem;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- footer ---------- */

.footer {
  border-top: 1px solid var(--hairline);
  padding: 3.6rem clamp(1.4rem, 5vw, 3rem) 4.2rem;
  text-align: center;
}
.foot-brand { font-family: var(--serif); font-weight: 600; font-size: 1.05rem; letter-spacing: .04em; }
.foot-line { margin-top: .5rem; font-size: .78rem; color: var(--muted); }
.foot-links { margin-top: 1.6rem; display: flex; justify-content: center; gap: 2rem; }
.foot-links a {
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  padding: .6rem 0;
}
.foot-links a:hover { color: var(--ink); }
.foot-note { margin-top: 1.8rem; font-size: .66rem; letter-spacing: .12em; color: rgba(110, 102, 90, .7); }

/* ---------- mobile ---------- */

@media (max-width: 779px) {
  .nav { padding: 1.1rem 1.2rem .9rem; }
  .nav-links { display: none; }

  .hero { padding-top: 6rem; padding-bottom: 5.5rem; }
  .hero-below { margin-top: 3.6rem; }
  .scroll-hint { display: none; }

  .method { padding: 22vh 0 16vh; }
  .method-cols { grid-template-columns: 1fr; margin-top: 3.2rem; }

  .cards { grid-template-columns: 1fr; gap: 0; }
  .card { padding: 2rem 0 2.2rem; }
  .card:last-child { border-bottom: 1px solid var(--hairline); }
  .card-num { margin-bottom: 1.1rem; }

  .zpp .wrap { padding-left: 2.9rem; }
  .zpp-steps { margin-left: .4rem; }
  .zpp-step { grid-template-columns: 52px 1fr; gap: 1rem; }

  .about-grid { grid-template-columns: 1fr; gap: 3.4rem; }

  .cta-row { flex-direction: column; gap: 3.2rem; }
  .closing { padding-bottom: 18vh; }
}