/* Campus-Immobilien Aachen II. GmbH – Designsystem gemäß BRIEF.md */

/* Schriften lokal ausgeliefert (Archivo / Archivo Narrow, OFL) – keine Verbindung zu Google */
@font-face {
  font-family: "Archivo Narrow";
  font-style: normal; font-display: swap; font-weight: 400 700;
  src: url(/fonts/archivo-narrow-latin-wght-normal.woff2) format("woff2-variations");
  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: "Archivo Narrow";
  font-style: normal; font-display: swap; font-weight: 400 700;
  src: url(/fonts/archivo-narrow-latin-ext-wght-normal.woff2) format("woff2-variations");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, 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;
}
@font-face {
  font-family: "Archivo";
  font-style: normal; font-display: swap; font-weight: 300 700;
  src: url(/fonts/archivo-latin-wght-normal.woff2) format("woff2-variations");
  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: "Archivo";
  font-style: normal; font-display: swap; font-weight: 300 700;
  src: url(/fonts/archivo-latin-ext-wght-normal.woff2) format("woff2-variations");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, 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;
}

:root {
  --green-500: #8cc63e;
  --green-300: #c4df9c;
  --green-100: #ebf4db;
  --green-700: #3f6b0d;
  --black: #231f20;
  --gray-800: #58595b;
  --gray-500: #949599;
  --gray-200: #d1d3d4;
  --gray-100: #e6e7e8;
  --gray-50: #f1f2f2;
  --white: #fff;
  --danger: #b3261e;
  --font-display: "Archivo Narrow", "Arial Narrow", Arial, sans-serif;
  --font-sans: "Archivo", Arial, Helvetica, sans-serif;
  --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;
  --container: 1200px;
  --hairline: 1px;
  --cut: 96px;
  --gutter: var(--space-4);
}

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

body {
  margin: 0;
  background: var(--white);
  color: var(--black);
  font: 400 17px/26px var(--font-sans);
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }

h1, h2, h3 { font-family: var(--font-display); margin: 0 0 var(--space-4); }
h1 { font-size: 44px; line-height: 48px; font-weight: 700; }
h2 { font-size: 34px; line-height: 40px; font-weight: 700; }
h3 { font-size: 26px; line-height: 32px; font-weight: 600; }
@media (min-width: 768px) { h1 { font-size: 56px; line-height: 58px; } }
p { margin: 0 0 var(--space-4); }
.lead { font-size: 21px; line-height: 32px; font-weight: 300; max-width: 680px; }
.small { font-size: 14px; line-height: 20px; }
strong { font-weight: 600; }

a { color: var(--green-700); text-decoration: underline; text-underline-offset: 3px; }
a:hover { color: var(--black); }
:focus-visible { outline: 3px solid var(--black); outline-offset: 3px; }

.container { width: 100%; max-width: calc(var(--container) + 2 * var(--gutter)); margin: 0 auto; padding: 0 var(--gutter); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: var(--space-4); top: -100px; background: var(--black); color: var(--white); padding: var(--space-2) var(--space-4); z-index: 10; }
.skip:focus { top: var(--space-4); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 14px var(--space-5);
  font: 600 18px/20px var(--font-display);
  text-decoration: none; cursor: pointer;
  border: 2px solid transparent; border-radius: 0;
  transition: background-color .15s, color .15s;
}
.btn--primary { background: var(--green-500); color: var(--black); border-color: var(--green-500); }
.btn--secondary { background: transparent; color: var(--black); border-color: var(--black); }
.btn:hover { background: var(--black); color: var(--white); border-color: var(--black); }
.btn:disabled { opacity: .5; cursor: wait; }

/* ---------- Kopf mit Haarlinienkreuz ---------- */
.site-header { border-bottom: var(--hairline) solid var(--gray-500); position: relative; }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); padding-top: var(--space-6); padding-bottom: var(--space-5); }
.site-header__logo { display: block; flex-shrink: 1; min-width: 0; }
.site-header__logo img { height: 40px; width: auto; }
@media (min-width: 820px) { .site-header__logo img { height: 52px; } }
.site-nav { display: flex; align-items: center; gap: var(--space-5); }
.site-nav a, .linklike {
  font: 600 18px/20px var(--font-display); color: var(--black);
  text-decoration: none; padding: var(--space-3) 0; border-bottom: 2px solid transparent;
}
.site-nav a:hover, .linklike:hover { border-bottom-color: var(--green-500); color: var(--black); }
.linklike { background: none; border-top: 0; border-left: 0; border-right: 0; cursor: pointer; }

/* Vertikale Haarlinie links (Desktop) – durchzieht Kopf und Einstieg */
@media (min-width: 820px) {
  .site-header::before, .hero::before {
    content: ""; position: absolute; top: 0; bottom: 0; width: var(--hairline);
    left: max(var(--space-4), calc((100% - var(--container)) / 2 - var(--space-6)));
    background: var(--gray-500);
  }
}

/* ---------- Einstieg ---------- */
.hero { position: relative; overflow: hidden; }
.hero__grid { display: grid; gap: var(--space-6); padding-top: var(--space-8); }
.hero__text { padding-bottom: var(--space-7); }
.hero__text h1 { max-width: 18ch; overflow-wrap: break-word; hyphens: auto; }
.hero__text .lead { margin-bottom: var(--space-6); }
.hero__panel { display: grid; grid-template-rows: 1fr 32px; height: 120px; margin: 0 calc(-1 * var(--gutter)); }
.hero__green { background: var(--green-500); clip-path: polygon(0 32px, 32px 0, 100% 0, 100% 100%, 0 100%); }
.hero__band { background: var(--green-300); }

@media (min-width: 820px) {
  .hero__grid { grid-template-columns: minmax(0, 1fr) 260px; padding-top: var(--space-9); min-height: 520px; }
  .hero__text { padding-bottom: var(--space-9); }
  .hero__panel {
    position: absolute; top: 0; bottom: 0; right: 0; height: auto; margin: 0;
    width: max(200px, calc((100% - var(--container)) / 2 + 220px));
    grid-template-rows: 1fr var(--space-8);
  }
  .hero__green { clip-path: polygon(0 var(--cut), var(--cut) 0, 100% 0, 100% 100%, 0 100%); }
}

/* ---------- Vorgehen ---------- */
.steps { padding: var(--space-8) 0; border-top: var(--hairline) solid var(--gray-500); }
@media (min-width: 820px) { .steps { padding: var(--space-9) 0; } }
.steps__list { list-style: none; margin: var(--space-6) 0 0; padding: 0; display: grid; gap: var(--space-6); }
@media (min-width: 820px) { .steps__list { grid-template-columns: repeat(3, 1fr); gap: var(--space-7); } }
.steps__item { border-top: 2px solid var(--black); padding-top: var(--space-5); }
.steps__num { display: block; font: 700 34px/40px var(--font-display); color: var(--green-700); margin-bottom: var(--space-3); }
.steps__item p { color: var(--gray-800); max-width: 36ch; margin: 0; }

/* ---------- Markenband (Rückseite der Visitenkarte) ---------- */
.brand {
  position: relative; overflow: hidden;
  background: var(--green-500);
  clip-path: polygon(0 32px, 32px 0, 100% 0, 100% 100%, 0 100%);
  padding: var(--space-8) 0;
}
@media (min-width: 820px) {
  .brand { clip-path: polygon(0 var(--cut), var(--cut) 0, 100% 0, 100% 100%, 0 100%); padding: var(--space-9) 0; min-height: 380px; }
}
.brand__c { position: absolute; fill: var(--gray-500); height: 120%; width: auto; right: -18%; top: 42%; }
@media (min-width: 820px) { .brand__c { height: 150%; right: 6%; top: 16%; } }
.brand__inner { position: relative; display: flex; flex-direction: column; align-items: flex-start; justify-content: space-between; gap: var(--space-8); min-height: 220px; }
.brand__inner img { height: 48px; width: auto; }
@media (min-width: 820px) { .brand__inner img { height: 56px; } }
.brand__web { color: var(--white); font: 300 26px/32px var(--font-sans); margin: 0; }
@media (min-width: 820px) { .brand__web { font-size: 32px; line-height: 40px; } }

/* ---------- Kontakt ---------- */
.contact { padding: var(--space-8) 0; }
@media (min-width: 820px) { .contact { padding: var(--space-9) 0; } }
.contact__grid { display: grid; gap: var(--space-7); }
@media (min-width: 820px) { .contact__grid { grid-template-columns: 5fr 7fr; gap: var(--space-9); } }
.contact__intro { color: var(--gray-800); }
.contact address { font-style: normal; margin-top: var(--space-6); }
.contact__company { font-weight: 600; margin-bottom: var(--space-2); }
.contact__list { display: grid; grid-template-columns: auto 1fr; gap: var(--space-2) var(--space-4); margin: var(--space-5) 0 0; }
.contact__list dt { color: var(--gray-800); }
.contact__list dd { margin: 0; }
.contact__list a { color: var(--black); }
.contact__list a:hover { color: var(--green-700); }

/* ---------- Formulare ---------- */
.field { margin-bottom: var(--space-5); }
.field label { display: block; font-weight: 600; margin-bottom: var(--space-2); }
.optional { font-weight: 400; color: var(--gray-800); }
.field input:not([type="checkbox"]), .field textarea, .field select {
  width: 100%; min-height: 48px; padding: var(--space-3);
  font: 400 17px/26px var(--font-sans); color: var(--black);
  background: var(--white); border: var(--hairline) solid var(--gray-800); border-radius: 0;
}
.field textarea { resize: vertical; }
.field input:focus-visible, .field textarea:focus-visible { outline: 3px solid var(--black); outline-offset: 3px; }
.field--error input, .field--error textarea { border: 2px solid var(--danger); }
.field__error { color: var(--danger); font-size: 14px; line-height: 20px; margin: var(--space-2) 0 0; }
.field__hint { display: block; color: var(--gray-800); font-size: 14px; line-height: 20px; margin: var(--space-2) 0 0; }
.field--check { display: grid; grid-template-columns: 24px 1fr; gap: var(--space-3); align-items: start; }
.field--check input { width: 24px; height: 24px; margin: 1px 0 0; accent-color: var(--black); }
.field--check label { font-weight: 400; margin: 0; }
.field--check .field__error { grid-column: 2; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.notice { padding: var(--space-4) var(--space-5); margin: 0 0 var(--space-5); border-left: 4px solid; }
.notice p:last-child { margin: 0; }
.notice--success { background: var(--green-100); border-color: var(--green-500); }
.notice--error { background: var(--white); border-color: var(--danger); color: var(--danger); }

/* ---------- Wartungsmodus ---------- */
.maintenance { padding: var(--space-8) 0 var(--space-9); }
.maintenance__box { max-width: 480px; }
.maintenance__box h1 { font-size: 34px; line-height: 40px; overflow-wrap: break-word; hyphens: auto; }
.maintenance__box .lead { margin-bottom: var(--space-6); }
.maintenance__admin { margin-top: var(--space-6); padding-top: var(--space-4); border-top: var(--hairline) solid var(--gray-200); }

/* ---------- Rechtstexte ---------- */
.legal { padding: var(--space-8) 0 var(--space-9); }
.prose { max-width: 680px; }
.prose h1 { margin-bottom: var(--space-6); }
.prose h2 { font-size: 26px; line-height: 32px; font-weight: 600; margin-top: var(--space-6); margin-bottom: var(--space-3); }
.prose h3 { font-size: 21px; line-height: 28px; margin-top: var(--space-5); margin-bottom: var(--space-2); }
.prose ul, .prose ol { padding-left: var(--space-5); margin: 0 0 var(--space-4); }
.prose hr { border: 0; border-top: var(--hairline) solid var(--gray-500); margin: var(--space-6) 0; }
.prose a { overflow-wrap: anywhere; }

/* ---------- Footer ---------- */
.site-footer { border-top: var(--hairline) solid var(--gray-500); padding: var(--space-6) 0 var(--space-7); color: var(--gray-800); }
.site-footer__inner { display: flex; flex-wrap: wrap; gap: var(--space-5); justify-content: space-between; align-items: flex-start; }
.site-footer__company { font-weight: 600; color: var(--black); margin-bottom: var(--space-1); }
.site-footer .small { margin: 0; }
.site-footer__nav { display: flex; gap: var(--space-5); }
.site-footer__nav a { color: var(--gray-800); font-size: 14px; line-height: 20px; padding: var(--space-3) 0; }
.site-footer__nav a:hover, .site-footer__nav a[aria-current] { color: var(--black); }