/* BEHR IT-Systeme GmbH – gemeinsames Stylesheet */

:root {
  --brown: #642d0a;
  --brown-light: #8a4c1f;
  --green: #72af28;
  --green-dark: #5a8c1f;
  --cream: #f5f1ea;
  --cream-dark: #ece5d8;
  --white: #ffffff;
  --max-width: 1180px;
  --font: "Gill Sans", "Gill Sans MT", Calibri, "Trebuchet MS", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--brown);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--cream-dark);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  text-decoration: none;
}

/* The logo file (icon + BEHR + BEHR IT-Systeme GmbH) is a single, tall
   graphic — it is shown in full, never cropped, and scaled by height only
   so its width follows automatically. */
.brand img {
  height: 76px;
  width: auto;
}

nav.main-nav ul {
  list-style: none;
  display: flex;
  gap: 28px;
  margin: 0;
  padding: 0;
}

nav.main-nav a {
  text-decoration: none;
  text-transform: uppercase;
  font-size: 14px;
  letter-spacing: 0.08em;
  font-weight: 600;
  color: var(--brown);
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}

nav.main-nav a:hover {
  border-bottom-color: var(--green);
  color: var(--green-dark);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  background: transparent;
  border: none;
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--brown);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Accessible visually-hidden helper text (e.g. "opens in a new tab") */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Buttons */

.btn {
  display: inline-block;
  padding: 13px 32px;
  border-radius: 999px;
  border: 2px solid var(--brown);
  color: var(--brown);
  text-decoration: none;
  font-size: 15px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 600;
  background: transparent;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  background: var(--brown);
  color: var(--white);
}

.btn.btn-green {
  border-color: var(--green-dark);
  color: var(--green-dark);
}

.btn.btn-green:hover {
  background: var(--green);
  border-color: var(--green);
  color: var(--white);
}

/* Hero */

.hero {
  background: linear-gradient(180deg, var(--cream) 0%, var(--white) 100%);
  padding: 76px 0 64px;
}

.hero .wrap {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero h1 {
  font-size: 42px;
  line-height: 1.15;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin: 0 0 20px;
}

.hero h1 span {
  color: var(--green);
}

.hero p.lead {
  font-size: 18px;
  color: var(--brown-light);
  margin: 0 0 32px;
  max-width: 46ch;
}

/* Sections */

section {
  padding: 72px 0;
}

section.alt {
  background: var(--cream);
}

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}

.section-head .eyebrow {
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 13px;
  font-weight: 700;
  color: var(--green-dark);
  margin-bottom: 10px;
}

.section-head h2 {
  font-size: 30px;
  margin: 0 0 14px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.section-head p {
  color: var(--brown-light);
  margin: 0;
}

/* Service cards */

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.card {
  background: var(--white);
  border: 1px solid var(--cream-dark);
  border-radius: 16px;
  padding: 32px 26px;
  text-align: left;
}

section.alt .card {
  background: var(--white);
}

.card .icon {
  width: 48px;
  height: 48px;
  margin-bottom: 18px;
  color: var(--green);
}

.card h3 {
  font-size: 19px;
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.card p {
  margin: 0;
  font-size: 15px;
  color: var(--brown-light);
}

/* About split */

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.split img,
.split .img-placeholder {
  border-radius: 18px;
}

.split-text h2 {
  font-size: 28px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin: 0 0 18px;
}

.split-text p {
  color: var(--brown-light);
  margin: 0 0 16px;
}

/* Contact / CTA */

.cta {
  background: var(--brown);
  color: var(--white);
  text-align: center;
}

.cta h2 {
  font-size: 30px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin: 0 0 16px;
}

.cta p {
  color: #f0ddce;
  max-width: 50ch;
  margin: 0 auto 30px;
}

.cta .btn {
  border-color: var(--white);
  color: var(--white);
}

.cta .btn:hover {
  background: var(--white);
  color: var(--brown);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
  text-align: left;
}

.contact-grid .item {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 14px;
  padding: 22px;
}

.contact-grid .item address {
  font-style: normal;
}

.contact-grid .item span.label {
  display: block;
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: #cba689;
  margin-bottom: 8px;
}

/* Footer */

.site-footer {
  background: var(--cream);
  border-top: 1px solid var(--cream-dark);
  padding: 40px 0 28px;
  font-size: 14px;
  color: var(--brown-light);
}

.site-footer .footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.site-footer .footer-brand {
  display: flex;
  align-items: center;
}

.site-footer .footer-brand img {
  height: 64px;
  width: auto;
}

.site-footer nav ul {
  list-style: none;
  display: flex;
  gap: 22px;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.site-footer nav a {
  text-decoration: none;
}

.site-footer nav a:hover {
  color: var(--green-dark);
}

.site-footer .footer-bottom {
  border-top: 1px solid var(--cream-dark);
  padding-top: 18px;
  font-size: 13px;
  opacity: 0.8;
}

/* Placeholder image blocks (used where a real photo will later go) */

.img-placeholder {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: 18px;
  overflow: hidden;
  background: var(--cream-dark);
  display: flex;
  align-items: center;
  justify-content: center;
}

.img-placeholder svg {
  width: 60%;
  height: 60%;
}

.img-placeholder.photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Legal pages */

.legal {
  padding: 64px 0 90px;
}

.legal .wrap {
  max-width: 820px;
}

.legal h1 {
  font-size: 32px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin: 0 0 8px;
}

.legal .updated {
  color: var(--brown-light);
  font-size: 14px;
  margin-bottom: 40px;
}

.legal h2 {
  font-size: 20px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin: 40px 0 12px;
}

.legal p,
.legal li,
.legal address {
  color: var(--brown-light);
}

.legal address {
  font-style: normal;
  margin: 0 0 16px;
}

.legal a {
  color: var(--green-dark);
}

.legal .placeholder {
  background: #fdf2e0;
  border: 1px dashed #d9a86a;
  border-radius: 4px;
  padding: 1px 6px;
}

.back-link {
  display: inline-block;
  margin-bottom: 30px;
  font-size: 14px;
  text-decoration: none;
  color: var(--brown-light);
}

.back-link:hover {
  color: var(--green-dark);
}

/* Responsive */

@media (max-width: 860px) {
  nav.main-nav ul {
    gap: 16px;
  }

  .hero .wrap,
  .split {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 48px;
  }

  .cards {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 32px;
  }
}

@media (max-width: 640px) {
  .nav-toggle {
    display: flex;
  }

  nav.main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--cream-dark);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
  }

  nav.main-nav.open {
    display: block;
  }

  nav.main-nav ul {
    flex-direction: column;
    gap: 0;
    padding: 8px 24px 16px;
  }

  nav.main-nav a {
    display: block;
    padding: 12px 0;
    border-bottom: 1px solid var(--cream-dark);
  }
}