/* Zeichenbüro Kovachev – Stylesheet
   Werte aus der Designvorlage „Startseite – Desktop“, Navy an das Logo angepasst. */

:root {
  --navy: #1D2B4F;          /* Logofarbe */
  --navy-line: #3A4870;     /* Trennlinien auf Navy */
  --accent: #B76B39;          /* Kupfer, wie 3SI */
  --accent-line: rgba(183, 107, 57, .45);
  --gold: #B19D81;
  --gold-light: #C9B797;
  --paper: #F8F6F2;          /* warmes Off-White, wie 3SI */
  --sand: #EEEBE5;
  --stone: #DEDAD2;
  --ink: #373735;
  --muted-on-navy: #C8CDD4;
  --field-border: #8F8C85;

  --serif: 'Newsreader', Georgia, serif;
  --sans: 'Source Sans 3', system-ui, sans-serif;

  --pad: 112px;             /* seitlicher Innenabstand */
  --max: 1440px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 104px; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }
a:hover { color: var(--navy); }
strong { color: var(--navy); }
img { max-width: 100%; }

.serif { font-family: var(--serif); }

/* ---------- Bereichsrahmen ---------- */

.band { width: 100%; }
.band--paper { background: var(--paper); }
.band--sand  { background: var(--sand); }
.band--navy  { background: var(--navy); color: var(--paper); }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 104px var(--pad) 112px;
}

/* ---------- Header ---------- */

.site-header { background: var(--navy); position: sticky; top: 0; z-index: 10; }
.site-header .wrap {
  height: 104px;
  padding-top: 0;
  padding-bottom: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.site-header .brand { display: block; line-height: 0; flex-shrink: 0; }
.site-header .brand img { height: 72px; width: auto; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 34px;
  font-family: var(--serif);
  font-size: 19px;
}
.main-nav a, .legal-nav a { color: var(--paper); text-decoration: none; }
.main-nav a:hover, .legal-nav a:hover { color: var(--gold-light); }

/* ---------- Hero ---------- */

.hero {
  max-width: var(--max);
  margin: 0 auto;
  min-height: 640px;
  display: grid;
}
.hero__panel { background: var(--sand); padding: 40px; display: flex; }
.hero__frame {
  flex-grow: 1;
  border: 1px solid var(--accent-line);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 22px;
  padding: 48px;
  text-align: center;
}
.hero__logo { width: 250px; height: auto; margin-bottom: 6px; }
.hero h1 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 400;
  font-size: 46px;
  line-height: 1.12;
  color: var(--navy);
}
.hero__sub { margin: 0; font-family: var(--serif); font-size: 22px; color: var(--navy); }
.hero__text { margin: 0; font-size: 17px; line-height: 1.75; max-width: 400px; }
.hero__actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding-top: 8px;
}

/* ---------- Buttons & Links ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  height: 54px;
  padding: 0 30px;
  background: var(--navy);
  color: var(--paper);
  border: 0;
  text-decoration: none;
  font-family: var(--serif);
  font-size: 19px;
  cursor: pointer;
  transition: background .15s;
}
.btn:hover { background: #2A3B66; color: var(--paper); }

/* Sekundärer Button: dünner Rahmen, Kupfertext (wie 3SI) */
.btn--outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent-line);
  height: 50px;
  font-size: 18px;
}
.btn--outline:hover { background: var(--accent); border-color: var(--accent); color: var(--paper); }

/* Innenrahmen wie bei den 3SI-Dialogen */
.framed { outline: 1px solid var(--accent-line); outline-offset: -12px; }
.btn:disabled { opacity: .6; cursor: default; }

.link-more {
  font-family: var(--serif);
  font-size: 18px;
  color: var(--accent);
  text-decoration: none;
}

/* ---------- Abschnittsköpfe ---------- */

.section-head { display: flex; flex-direction: column; gap: 14px; }
.section-head__title {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 22px;
}
.section-head__title::before {
  content: "";
  width: 34px;
  height: 1px;
  background: var(--accent);
  flex-shrink: 0;
}

h2 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 400;
  font-size: 50px;
  line-height: 1.1;
  color: var(--navy);
}
.band--navy h2 { color: var(--paper); }

.kicker { font-family: var(--serif); font-size: 21px; color: var(--accent); }
.band--navy .kicker { color: var(--gold-light); }

.lead { margin: 0; font-size: 17px; line-height: 1.8; }

.row-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 64px;
}
.row-head .lead { max-width: 520px; }

.stack { display: flex; flex-direction: column; gap: 56px; }

/* ---------- Leistungen ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}
.card {
  background: var(--paper);
  border: 1px solid var(--stone);
  padding: 40px 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.card__top { display: flex; justify-content: space-between; align-items: flex-start; }
.card__top svg { stroke: var(--accent); }
.card__num { font-family: var(--serif); font-size: 20px; color: var(--gold); }
.card__for { font-family: var(--serif); font-size: 17px; color: var(--accent); padding-top: 6px; }
.card h3 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 400;
  font-size: 28px;
  line-height: 1.2;
  color: var(--navy);
}
.card__claim { margin: 0; font-size: 17px; font-weight: 700; color: var(--navy); }
.card__text { margin: 0; font-size: 16px; line-height: 1.75; }
.card__result {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--stone);
  display: flex;
  gap: 10px;
  align-items: baseline;
  font-size: 14px;
}
.card__result span:first-child { font-family: var(--serif); font-size: 16px; color: var(--navy); }

.diamonds {
  margin: 6px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 15.5px;
  line-height: 1.6;
}
.diamonds li { display: flex; gap: 12px; align-items: flex-start; }
.diamonds li::before {
  content: "";
  width: 7px;
  height: 7px;
  margin-top: 9px;
  flex-shrink: 0;
  background: var(--gold);
  transform: rotate(45deg);
}

.promises {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--stone);
  border: 1px solid var(--stone);
}
.promises > div {
  background: var(--navy);
  color: var(--paper);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.promises b { font-family: var(--serif); font-size: 21px; font-weight: 400; }
.promises span { font-size: 14.5px; line-height: 1.6; color: var(--muted-on-navy); }

.fineprint { margin: -24px 0 0; font-size: 14px; line-height: 1.7; }

/* ---------- Vorher & Nachher ---------- */

.badge { font-size: 14px; padding: 10px 16px; border: 1px solid var(--navy); color: var(--navy); white-space: nowrap; }

.compare { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px; }
.compare figure { margin: 0; display: flex; flex-direction: column; gap: 16px; }
.compare__img { border: 1px solid var(--stone); background: #fff; line-height: 0; }
.compare__img img { display: block; width: 100%; height: auto; }
.compare figcaption { font-size: 16px; line-height: 1.6; }
.compare figcaption span { font-family: var(--serif); font-size: 22px; color: var(--navy); }

/* ---------- Ablauf ---------- */

.steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 40px;
}
.steps li {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 26px;
  border-top: 1px solid var(--navy-line);
}
.steps__n { font-family: var(--serif); font-size: 34px; color: var(--gold-light); line-height: 1; }
.steps strong { font-family: var(--serif); font-size: 25px; font-weight: 400; color: var(--paper); }
.steps li > span:last-child { font-size: 16px; line-height: 1.75; color: var(--muted-on-navy); }

/* ---------- 12er-Raster-Abschnitte ---------- */

.grid12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 56px;
}
.span4 { grid-column: span 4; }
.span5 { grid-column: span 5; }
.span7 { grid-column: span 7; }
.span8 { grid-column: span 8; }

.free { align-items: center; }
.free__cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
.free__cards > div {
  padding: 44px 40px;
  background: var(--sand);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.free__cards span { font-family: var(--serif); font-size: 17px; color: var(--accent); }
.free__cards h3 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 400;
  font-size: 32px;
  line-height: 1.15;
  color: var(--navy);
}
.free__cards p { margin: 0; font-size: 16px; line-height: 1.75; }

/* ---------- Über mich ---------- */

.about__text { grid-column: 1 / -1; max-width: 960px; display: flex; flex-direction: column; gap: 18px; }
.boundary {
  margin-top: 16px;
  padding: 32px 36px;
  background: var(--paper);
  border: 1px solid var(--accent-line);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.boundary h3 { margin: 0; font-family: var(--serif); font-weight: 400; font-size: 25px; color: var(--navy); }
.boundary p { margin: 0; font-size: 16px; line-height: 1.75; }

/* ---------- Kontakt ---------- */

.contact-list {
  margin: 0;
  display: grid;
  grid-template-columns: 110px 1fr;
  row-gap: 14px;
  align-items: baseline;
  font-size: 17px;
  line-height: 1.5;
  padding-top: 20px;
  border-top: 1px solid var(--stone);
}
.contact-list dt { font-family: var(--serif); font-size: 18px; color: var(--navy); }
.contact-list dd { margin: 0; }

.form {
  padding: 44px;
  background: var(--sand);
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form__row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.form__row--anrede { grid-template-columns: 120px minmax(0, 1fr) minmax(0, 1fr); }
.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-family: var(--serif);
  font-size: 18px;
  color: var(--navy);
}
.field input[type=text],
.field input[type=email],
.field select,
.field textarea {
  padding: 0 14px;
  height: 50px;
  border: 1px solid var(--field-border);
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  font-family: var(--sans);
  border-radius: 0;
}
.field textarea { height: auto; padding: 12px 14px; resize: vertical; }
.field select {
  appearance: none;
  padding-right: 36px;
  cursor: pointer;
  background: var(--paper) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%231D2B4F' stroke-width='1.4'/%3E%3C/svg%3E") no-repeat right 14px center;
}
/* Datei-Upload: natives Feld versteckt, eigener Button */
.upload { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.upload__input { position: absolute; width: 1px; height: 1px; opacity: 0; overflow: hidden; }
.upload__btn { font-size: 17px; height: 46px; padding: 0 22px; }
.upload__input:focus-visible + .upload__btn { outline: 2px solid var(--accent); outline-offset: 2px; }
.upload__empty { font-family: var(--sans); font-size: 15px; color: var(--ink); line-height: 1.5; }
.upload__list { margin: 4px 0 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 6px; }
.upload__list:empty { display: none; }
.upload__list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 8px 8px 14px;
  background: var(--paper);
  border: 1px solid var(--stone);
  font-family: var(--sans);
  font-size: 15px;
  color: var(--ink);
}
.upload__list .upload__file { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.upload__list .upload__size { color: #8F8C85; margin-left: 8px; }
.upload__remove {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border: 0;
  background: transparent;
  color: var(--accent);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
}
.upload__remove:hover { background: var(--accent); color: var(--paper); }
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

.check { display: flex; gap: 12px; align-items: flex-start; font-size: 14px; line-height: 1.6; }
.check input { width: 20px; height: 20px; margin: 0; flex-shrink: 0; accent-color: var(--navy); }

.form__status { margin: 0; font-size: 15px; line-height: 1.6; min-height: 1.6em; }
.form__status.is-ok { color: #2F6B3A; }
.form__status.is-error { color: #A23B2A; }

/* ---------- Footer ---------- */

.site-footer { background: var(--navy); color: var(--muted-on-navy); }
.site-footer .wrap {
  padding-top: 56px;
  padding-bottom: 56px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 48px;
  font-size: 15px;
  line-height: 1.8;
}
.site-footer__info { display: flex; flex-direction: column; gap: 8px; }
.site-footer__info img { width: 190px; height: auto; margin-bottom: 14px; }
.legal-nav { display: flex; gap: 28px; font-family: var(--serif); font-size: 18px; }

/* ---------- Rechtstexte ---------- */

.legal { max-width: 860px; }
.legal h2 { margin-bottom: 40px; }
.legal h3 {
  margin: 40px 0 10px;
  font-family: var(--serif);
  font-weight: 400;
  font-size: 25px;
  color: var(--navy);
}
.legal p, .legal li { font-size: 17px; line-height: 1.8; }
.legal p { margin: 0 0 12px; }
.legal ul { margin: 0 0 12px; padding-left: 22px; }
.legal dl { margin: 0; display: grid; grid-template-columns: 240px 1fr; row-gap: 10px; font-size: 17px; line-height: 1.6; }
.legal dt { font-family: var(--serif); font-size: 18px; color: var(--navy); }
.legal dd { margin: 0; }
.todo { background: #F4E3C9; padding: 0 4px; }

/* ---------- Menü-Button (nur mobil sichtbar) ---------- */

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid rgba(248, 246, 242, .35);
  background: transparent;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--paper);
  transition: transform .2s, opacity .2s;
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ---------- Tablet ---------- */

@media (max-width: 1100px) {
  :root { --pad: 48px; }

  .wrap { padding-top: 88px; padding-bottom: 96px; }

  /* Hauptnavigation als ausklappbares Menü */
  .site-header .wrap { position: relative; }
  .nav-toggle { display: flex; }
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px var(--pad) 24px;
    background: var(--navy);
    border-top: 1px solid var(--navy-line);
    box-shadow: 0 12px 24px rgba(0, 0, 0, .18);
  }
  .main-nav.is-open { display: flex; }
  .main-nav a { padding: 14px 0; border-bottom: 1px solid var(--navy-line); font-size: 20px; }
  .main-nav a:last-child { border-bottom: 0; }

  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .promises { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 48px; }

  .grid12 { grid-template-columns: minmax(0, 1fr); gap: 48px; }
  .span4, .span5, .span7, .span8 { grid-column: auto; }

  .row-head { flex-direction: column; align-items: flex-start; gap: 24px; }
  .row-head .lead { max-width: 680px; }
}

/* ---------- Smartphone ---------- */

@media (max-width: 720px) {
  :root { --pad: 20px; }
  html { scroll-padding-top: 76px; }

  .wrap { padding-top: 64px; padding-bottom: 72px; }
  .stack { gap: 40px; }

  .site-header .wrap { height: 76px; }
  .site-header .brand img { height: 52px; }

  .hero { min-height: 0; }
  .hero__panel { padding: 16px; }
  .hero__frame { padding: 40px 20px; gap: 18px; }
  .hero__logo { width: 190px; }
  .hero h1 { font-size: 34px; }
  .hero__sub { font-size: 20px; }
  .hero__text { font-size: 16px; }
  .hero__actions { align-self: stretch; }
  .hero__actions .btn { justify-content: center; }

  h2 { font-size: 34px; }
  .kicker { font-size: 19px; }
  .lead { font-size: 16px; }

  .cards, .promises, .compare, .steps { grid-template-columns: minmax(0, 1fr); }
  .card { padding: 32px 24px 26px; }
  .card h3 { font-size: 25px; }
  .framed { outline-offset: -8px; }
  .promises > div { padding: 24px 22px; }
  .fineprint { margin-top: -16px; }
  .compare { gap: 40px; }
  .steps { row-gap: 36px; }

  .boundary { padding: 26px 22px; }

  .form { padding: 28px 20px; }
  .form__row, .form__row--anrede { grid-template-columns: minmax(0, 1fr); }
  .btn { font-size: 18px; }
  .form .btn[type=submit] { align-self: stretch !important; justify-content: center; }

  .site-footer .wrap { flex-direction: column; gap: 28px; }
  .legal-nav { flex-wrap: wrap; gap: 20px; }

  .legal dl { grid-template-columns: minmax(0, 1fr); row-gap: 2px; }
  .legal dd { margin-bottom: 12px; }
  .legal h3 { font-size: 22px; }
  .legal p, .legal li { font-size: 16px; }
}