/* Exzellenzschmiede – Corporate Design Tokens & Website Styles */

@font-face {
  font-family: "Inter";
  src: url("../fonts/inter.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Inter Tight";
  src: url("../fonts/inter-tight.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  /* Farben */
  --ink: #111317;        /* Schmiedeeisen – Primärfarbe, Text, dunkle Flächen */
  --graphite: #23262C;   /* Graphit – Flächen auf Dunkel */
  --steel: #5E636C;      /* Stahl – Sekundärtext */
  --steel-light: #9A9EA6;/* Stahl hell – Text auf Dunkel */
  --line: #DDD8CE;       /* Linien auf Hell */
  --line-dark: #33363D;  /* Linien auf Dunkel */
  --paper: #F4F1EB;      /* Asche – Hintergrund */
  --white: #FFFFFF;
  --glut: #E2541B;       /* Glut – Akzent, sparsam */
  --glut-deep: #B8410F;  /* Glut tief – Akzent als Text auf Hell (AA) */
  --glut-soft: #FBE3D6;

  /* Typografie */
  --font-display: "Inter Tight", "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-text: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;

  /* Raster */
  --max: 1200px;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  --radius: 4px;
  --section: clamp(4.5rem, 10vw, 8.5rem);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 5rem; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-text);
  font-size: 1.0625rem;
  line-height: 1.65;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; }
::selection { background: var(--glut); color: var(--white); }
:focus-visible { outline: 2px solid var(--glut); outline-offset: 3px; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.08;
  margin: 0;
  text-wrap: balance;
}
p { margin: 0; text-wrap: pretty; }

.eyebrow {
  display: inline-flex; align-items: center; gap: .6rem;
  font-family: var(--font-display);
  font-size: .8125rem; font-weight: 600;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--glut-deep);
}
.eyebrow::before { content: ""; width: 1.75rem; height: 3px; background: var(--glut); }
.on-dark .eyebrow { color: var(--glut); }

.skip-link {
  position: absolute; left: 1rem; top: -4rem; z-index: 100;
  background: var(--ink); color: var(--white); padding: .6rem 1rem; border-radius: var(--radius);
}
.skip-link:focus { top: 1rem; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: .65rem;
  font-family: var(--font-display); font-weight: 600; font-size: 1rem;
  padding: .95rem 1.4rem; border-radius: var(--radius);
  text-decoration: none; border: 1.5px solid transparent;
  transition: background .2s, color .2s, border-color .2s, transform .2s;
}
.btn svg { width: 1rem; height: 1rem; transition: transform .2s; }
.btn:hover svg { transform: translateX(3px); }
.btn-primary { background: var(--ink); color: var(--white); }
.btn-primary:hover { background: var(--glut-deep); }
.btn-glut { background: var(--glut); color: var(--white); }
.btn-glut:hover { background: var(--glut-deep); }
.btn-ghost { border-color: currentColor; color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--white); border-color: var(--ink); }

/* Header (dunkel, Glas-Effekt) */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(17, 19, 23, .72);
  backdrop-filter: saturate(160%) blur(18px);
  -webkit-backdrop-filter: saturate(160%) blur(18px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s, background .2s;
  color: var(--white);
}
.site-header.is-scrolled { border-bottom-color: rgba(255, 255, 255, .08); background: rgba(17, 19, 23, .82); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 4rem; gap: 1.5rem; }
.brand img { height: 1.75rem; width: auto; }
.nav { display: flex; align-items: center; gap: 2rem; }
.nav a { text-decoration: none; font-weight: 500; font-size: .875rem; color: var(--steel-light); transition: color .2s; }
.nav a:hover { color: var(--white); }
.nav .btn { color: var(--white); padding: .55rem 1rem; font-size: .875rem; border-radius: 999px; }
.nav-toggle { display: none; background: none; border: 0; padding: .5rem; margin-right: -.5rem; cursor: pointer; color: var(--white); }
.nav-toggle svg { width: 1.6rem; height: 1.6rem; }

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav {
    position: absolute; top: 4rem; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--ink); border-bottom: 1px solid var(--line-dark);
    padding: .5rem var(--gutter) 1.5rem;
    display: none;
  }
  .nav.is-open { display: flex; }
  .nav a { padding: .9rem 0; border-bottom: 1px solid var(--line-dark); font-size: 1.0625rem; color: var(--white); }
  .nav .btn { margin-top: 1.25rem; justify-content: center; border-bottom: 0; }
}

/* Hero */
.hero { padding: clamp(3.5rem, 9vw, 7.5rem) 0 clamp(4rem, 9vw, 7rem); position: relative; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: clamp(2.5rem, 6vw, 5rem); align-items: center; }
.hero h1 {
  font-size: clamp(2.6rem, 6.4vw, 5.4rem);
  letter-spacing: -0.035em; line-height: 1.02;
  margin: 1.5rem 0 1.75rem;
}
.hero h1 em { font-style: normal; color: var(--glut); }
.hero .lead { font-size: clamp(1.125rem, 1.6vw, 1.3rem); color: var(--steel); max-width: 36rem; line-height: 1.6; }
.hero .lead strong { color: var(--ink); font-weight: 600; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .85rem; margin-top: 2.5rem; }

.hero-card {
  background: var(--ink); color: var(--white);
  border-radius: 6px; padding: clamp(1.75rem, 3vw, 2.5rem);
  position: relative; overflow: hidden;
  box-shadow: 0 30px 60px -30px rgba(17, 19, 23, .45);
}
.hero-card::after {
  content: ""; position: absolute; right: -30%; bottom: -40%; width: 80%; aspect-ratio: 1;
  background: radial-gradient(circle, rgba(226, 84, 27, .28), transparent 65%);
  pointer-events: none;
}
.hero-card .card-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 2rem; }
.hero-card .card-head img { width: 2.75rem; height: 2.75rem; }
.hero-card .card-label { font-family: var(--font-display); font-size: .75rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--steel-light); }
.timeline { list-style: none; margin: 0; padding: 0; position: relative; z-index: 1; }
.timeline li { display: grid; grid-template-columns: 7.5rem 1fr; gap: 1rem; padding: 1rem 0; border-top: 1px solid var(--line-dark); }
.timeline li:first-child { border-top: 0; padding-top: 0; }
.timeline .when { font-family: var(--font-display); font-weight: 600; font-size: .875rem; color: var(--glut); padding-top: .1rem; }
.timeline .what { font-size: .975rem; color: #E6E3DD; line-height: 1.5; }
.timeline .what b { display: block; color: var(--white); font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; margin-bottom: .15rem; }
.hero-card .card-foot { margin-top: 1.75rem; padding-top: 1.25rem; border-top: 1px solid var(--line-dark); font-family: var(--font-display); font-weight: 600; font-size: 1.15rem; letter-spacing: -0.01em; position: relative; z-index: 1; }
.hero-card .card-foot span { color: var(--glut); }

@media (max-width: 960px) { .hero-grid { grid-template-columns: 1fr; } .hero-card { max-width: 34rem; } }

/* Sections */
.section { padding: var(--section) 0; }
.section-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 2rem 4rem; align-items: end; margin-bottom: clamp(2.75rem, 6vw, 4.5rem); }
.section-head h2 { font-size: clamp(2rem, 4.2vw, 3.25rem); margin-top: 1.1rem; }
.section-head p { color: var(--steel); font-size: 1.125rem; max-width: 34rem; }
@media (max-width: 860px) { .section-head { grid-template-columns: 1fr; } }

.on-dark { background: var(--ink); color: var(--white); }
.on-dark .section-head p { color: var(--steel-light); }

/* Credo */
.credo-title { font-size: clamp(2.6rem, 7vw, 6rem); letter-spacing: -0.04em; line-height: 1; margin: 1.25rem 0 0; }
.credo-title span { color: var(--glut); }
.credo-intro { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 2rem 4rem; align-items: end; margin-bottom: clamp(3rem, 6vw, 4.5rem); }
.credo-intro p { color: var(--steel-light); font-size: 1.15rem; }
@media (max-width: 860px) { .credo-intro { grid-template-columns: 1fr; } }

.compare { border-top: 1px solid var(--line-dark); }
.compare-row { display: grid; grid-template-columns: 1fr 2.5rem 1fr; gap: 1.5rem; align-items: center; padding: 1.6rem 0; border-bottom: 1px solid var(--line-dark); }
.compare-head { padding: 1rem 0; font-family: var(--font-display); font-size: .75rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--steel-light); }
.compare-row .old { color: var(--steel-light); text-decoration: line-through; text-decoration-color: rgba(154, 158, 166, .5); text-decoration-thickness: 1px; }
.compare-row .arrow { color: var(--glut); }
.compare-row .arrow svg { width: 1.5rem; height: 1.5rem; }
.compare-row .new { font-family: var(--font-display); font-weight: 600; font-size: 1.2rem; letter-spacing: -0.01em; }
@media (max-width: 640px) {
  .compare-row { grid-template-columns: 1fr; gap: .35rem; }
  .compare-row .arrow { display: none; }
  .compare-head { display: none; }
}

/* Leistungen */
.services { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.service { padding: clamp(1.75rem, 3vw, 2.5rem); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: transparent; transition: background .25s; position: relative; }
.service::before { content: ""; position: absolute; left: -1px; top: -1px; height: 3px; width: 0; background: var(--glut); transition: width .35s ease; }
.service:hover { background: var(--white); }
.service:hover::before { width: calc(100% + 2px); }
.service .num { font-family: var(--font-display); font-weight: 600; font-size: .875rem; color: var(--glut-deep); }
.service h3 { font-size: 1.4rem; margin: 2.5rem 0 .85rem; }
.service p { color: var(--steel); font-size: 1rem; }
@media (max-width: 960px) { .services { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .services { grid-template-columns: 1fr; } .service h3 { margin-top: 1.5rem; } }

/* Vorgehen */
.process { background: var(--white); }
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.25rem; counter-reset: step; list-style: none; padding: 0; margin: 0; }
.step { position: relative; padding-top: 2.25rem; }
.step::before {
  counter-increment: step; content: "0" counter(step);
  position: absolute; top: 0; left: 0;
  font-family: var(--font-display); font-weight: 600; font-size: .875rem; color: var(--glut-deep);
}
.step::after { content: ""; position: absolute; top: .6rem; left: 2.25rem; right: 0; height: 1px; background: var(--line); }
.step h3 { font-size: 1.6rem; margin-bottom: .75rem; }
.step p { color: var(--steel); font-size: 1rem; }
.step .dur { display: inline-block; margin-top: 1.25rem; font-family: var(--font-display); font-size: .8125rem; font-weight: 600; padding: .3rem .65rem; border-radius: 3px; background: var(--paper); color: var(--ink); }
.steps-note { margin-top: 2.5rem; font-size: .875rem; color: var(--steel); }
@media (max-width: 960px) { .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2.5rem 1.5rem; } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }

/* Anwendungsfelder */
.fields { display: flex; flex-wrap: wrap; gap: .65rem; }
.fields li { list-style: none; border: 1px solid var(--line); background: var(--white); padding: .7rem 1.1rem; border-radius: 999px; font-weight: 500; font-size: .975rem; }
.fields { padding: 0; margin: 0; }
.fields-wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); gap: 2.5rem 4rem; align-items: start; }
.fields-wrap h2 { font-size: clamp(1.75rem, 3.4vw, 2.6rem); margin-top: 1.1rem; }
.fields-wrap .sub { color: var(--steel); margin-top: 1rem; }
@media (max-width: 860px) { .fields-wrap { grid-template-columns: 1fr; } }

/* Haltung */
.principles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; background: var(--line-dark); border: 1px solid var(--line-dark); }
.principle { background: var(--ink); padding: clamp(1.75rem, 3.5vw, 2.75rem); }
.principle h3 { font-size: 1.5rem; margin-bottom: .85rem; display: flex; gap: .85rem; align-items: baseline; }
.principle h3::before { content: ""; flex: 0 0 .65rem; height: .65rem; background: var(--glut); transform: translateY(-.1rem); }
.principle p { color: var(--steel-light); }
@media (max-width: 760px) { .principles { grid-template-columns: 1fr; } }

/* Kontakt */
.contact-box {
  display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 2.5rem 4rem; align-items: center;
  background: var(--white); border: 1px solid var(--line); border-radius: 6px;
  padding: clamp(2rem, 5vw, 4rem); position: relative; overflow: hidden;
}
.contact-box::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--glut); }
.contact-box h2 { font-size: clamp(2rem, 4.2vw, 3.25rem); margin-top: 1.1rem; }
.contact-box p { color: var(--steel); font-size: 1.125rem; margin-top: 1.25rem; max-width: 34rem; }
.contact-actions { display: flex; flex-direction: column; gap: 1rem; align-items: flex-start; }
.contact-actions .mail { font-family: var(--font-display); font-weight: 600; font-size: 1.15rem; color: var(--ink); text-decoration: none; border-bottom: 2px solid var(--glut); padding-bottom: .1rem; }
.contact-actions .mail:hover { color: var(--glut-deep); }
.contact-actions small { color: var(--steel); font-size: .875rem; }
@media (max-width: 860px) { .contact-box { grid-template-columns: 1fr; } }

/* Footer */
.site-footer { background: var(--ink); color: var(--steel-light); padding: 4rem 0 2.5rem; font-size: .9375rem; }
.footer-top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 2rem; padding-bottom: 2.5rem; border-bottom: 1px solid var(--line-dark); }
.footer-top img { height: 2rem; width: auto; }
.footer-top .claim { margin-top: 1rem; font-family: var(--font-display); font-weight: 600; color: var(--white); font-size: 1.1rem; }
.footer-top .claim span { color: var(--glut); }
.footer-links { display: flex; flex-wrap: wrap; gap: 1.75rem; align-items: flex-start; }
.footer-links a { text-decoration: none; color: var(--steel-light); }
.footer-links a:hover { color: var(--white); }
.footer-bottom { padding-top: 1.75rem; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; font-size: .8125rem; }

/* Rechtstexte */
.legal { padding: clamp(3rem, 8vw, 6rem) 0 var(--section); }
.legal .container { max-width: 780px; }
.legal h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); margin: 1.1rem 0 2.5rem; }
.legal h2 { font-size: 1.35rem; margin: 2.75rem 0 .85rem; }
.legal h3 { font-size: 1.1rem; margin: 1.75rem 0 .5rem; }
.legal p, .legal li { color: #3A3E45; }
.legal p + p { margin-top: .85rem; }
.legal ul { padding-left: 1.2rem; }
.legal a { color: var(--glut-deep); }
.legal .placeholder { background: var(--glut-soft); padding: 0 .3rem; border-radius: 2px; }

/* Reveal */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }
.no-js .reveal { opacity: 1; transform: none; }
.legal .legal-cta { margin-top: 2rem; }
.legal .legal-cta .btn { color: var(--white); }

/* Modell / Bezahlmodell */
.model-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.25rem; }
.model-card { background: var(--white); border: 1px solid var(--line); border-radius: 6px; padding: clamp(1.75rem, 3vw, 2.5rem); display: flex; flex-direction: column; position: relative; overflow: hidden; }
.model-card::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px; background: var(--ink); }
.model-card:nth-child(2)::before { background: var(--glut); }
.model-card .num { font-family: var(--font-display); font-weight: 600; font-size: .875rem; color: var(--glut-deep); }
.model-card .price { display: inline-block; align-self: flex-start; margin-top: 1.25rem; font-family: var(--font-display); font-weight: 600; font-size: .8125rem; letter-spacing: .02em; padding: .35rem .7rem; border-radius: 3px; background: var(--ink); color: var(--white); }
.model-card:nth-child(2) .price { background: var(--glut); }
.model-card h3 { font-size: 1.6rem; margin: 1.25rem 0 .75rem; }
.model-card p { color: var(--steel); font-size: 1rem; }
.model-card ul { list-style: none; padding: 1.25rem 0 0; margin: auto 0 0; border-top: 1px solid var(--line); }
.model-card p + ul { margin-top: 1.5rem; }
.model-card li { position: relative; padding-left: 1.4rem; font-size: .95rem; font-weight: 500; margin: .45rem 0; }
.model-card li::before { content: ""; position: absolute; left: 0; top: .6rem; width: .6rem; height: .2rem; background: var(--glut); }
@media (max-width: 960px) { .model-grid { grid-template-columns: 1fr; } }

.guarantee { margin-top: 1.25rem; background: var(--ink); color: var(--white); border-radius: 6px; padding: clamp(2rem, 5vw, 3.5rem); display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 1.5rem 3rem; align-items: center; position: relative; overflow: hidden; }
.guarantee::after { content: ""; position: absolute; right: -10%; top: -80%; width: 50%; aspect-ratio: 1; background: radial-gradient(circle, rgba(226, 84, 27, .3), transparent 65%); pointer-events: none; }
.guarantee .big { font-family: var(--font-display); font-weight: 600; font-size: clamp(2rem, 4.6vw, 3.6rem); letter-spacing: -0.035em; line-height: 1.02; }
.guarantee .big span { color: var(--glut); }
.guarantee p:not(.big) { color: var(--steel-light); font-size: 1.15rem; position: relative; z-index: 1; }
@media (max-width: 860px) { .guarantee { grid-template-columns: 1fr; } }