/* ===========================
   ZWEI-RAD UNNA – Stylesheet
   =========================== */

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

:root {
  --green:      #1a7a3c;
  --green-dark: #145e2e;
  --green-light:#e8f5ee;
  --accent:     #f0a500;
  --dark:       #0f1a12;
  --gray-900:   #1c2b20;
  --gray-700:   #3d5445;
  --gray-500:   #6b8a74;
  --gray-200:   #dce8e0;
  --gray-100:   #f4f8f5;
  --white:      #ffffff;
  --font:       'Inter', system-ui, sans-serif;
  --radius:     10px;
  --shadow:     0 4px 24px rgba(0,0,0,.10);
  --transition: .25s ease;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font);
  color: var(--gray-900);
  background: var(--white);
  line-height: 1.65;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
ul { list-style: none; }

/* ---- CONTAINER ---- */
.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--green); color: var(--white); }
.btn--primary:hover { background: var(--green-dark); }
.btn--outline { background: transparent; color: var(--white); border-color: rgba(255,255,255,.7); }
.btn--outline:hover { background: rgba(255,255,255,.12); border-color: var(--white); }
.btn--full { width: 100%; justify-content: center; }

/* ---- SECTION COMMON ---- */
.section { padding: 96px 0; }
.section__header { text-align: center; max-width: 680px; margin: 0 auto 56px; }
.section__label {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 12px;
}
.section__title { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 800; line-height: 1.2; color: var(--dark); margin-bottom: 16px; }
.section__sub { color: var(--gray-500); font-size: 1.05rem; }

/* ===========================
   HEADER / NAV
   =========================== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(15,26,18,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,.06);
  transition: background var(--transition);
}
.header.scrolled { background: rgba(15,26,18,.98); }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav__logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.15rem; font-weight: 600; color: var(--white);
}
.nav__logo strong { color: var(--accent); }
.logo-icon { font-size: 1.4rem; color: var(--green); }

.nav__menu {
  display: flex; align-items: center; gap: 32px;
}
.nav__link {
  color: rgba(255,255,255,.8);
  font-size: .9rem;
  font-weight: 500;
  transition: color var(--transition);
}
.nav__link:hover { color: var(--white); }

.nav__toggle {
  display: none;
  flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.nav__toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--white); border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* ===========================
   HERO
   =========================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center;
  overflow: hidden;
}
.hero__bg {
  position: absolute; inset: 0;
}
.hero__bg img {
  width: 100%; height: 100%; object-fit: cover;
}
.hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(10,22,13,.85) 0%, rgba(10,22,13,.55) 100%);
}
.hero__content {
  position: relative; z-index: 1;
  padding-top: 100px;
  max-width: 720px;
}
.hero__label {
  display: inline-block;
  font-size: .8rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
.hero__title {
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 800; line-height: 1.15;
  color: var(--white);
  margin-bottom: 20px;
}
.hero__sub {
  font-size: 1.1rem; color: rgba(255,255,255,.8);
  margin-bottom: 36px; max-width: 580px;
}
.hero__cta { display: flex; gap: 16px; flex-wrap: wrap; }

/* ===========================
   STATS
   =========================== */
.stats {
  background: var(--green);
  padding: 40px 0;
}
.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat__number {
  display: block;
  font-size: 2.2rem; font-weight: 800;
  color: var(--white);
}
.stat__label {
  display: block;
  font-size: .85rem; color: rgba(255,255,255,.75);
  margin-top: 4px;
}

/* ===========================
   LEISTUNGEN
   =========================== */
.leistungen { background: var(--gray-100); }

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px 28px;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover { transform: translateY(-6px); box-shadow: 0 12px 36px rgba(0,0,0,.13); }
.card__icon { font-size: 2.2rem; margin-bottom: 16px; }
.card h3 { font-size: 1.1rem; font-weight: 700; color: var(--dark); margin-bottom: 10px; }
.card p { color: var(--gray-500); font-size: .95rem; }

/* ===========================
   SORTIMENT
   =========================== */
.sortiment { background: var(--white); }

.sortiment__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 20px;
}
.sortiment__item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 260px;
}
.sortiment__item--large {
  grid-row: span 2;
  min-height: 540px;
}
.sortiment__item img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .4s ease;
}
.sortiment__item:hover img { transform: scale(1.04); }
.sortiment__label {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: linear-gradient(to top, rgba(10,22,13,.88) 0%, transparent 100%);
  padding: 28px 24px 20px;
  color: var(--white);
}
.sortiment__label h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 6px; }
.sortiment__label p { font-size: .88rem; color: rgba(255,255,255,.8); }

/* ===========================
   VORTEILE
   =========================== */
.vorteile { background: var(--gray-100); }
.vorteile__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.vorteile__text .section__label { text-align: left; }
.vorteile__text .section__title { text-align: left; margin-bottom: 20px; }
.vorteile__text > p { color: var(--gray-500); margin-bottom: 28px; }

.vorteile__list { margin-bottom: 36px; display: flex; flex-direction: column; gap: 12px; }
.vorteile__list li {
  display: flex; align-items: flex-start; gap: 12px;
  font-size: .97rem; color: var(--gray-700);
}
.check {
  display: inline-flex; align-items: center; justify-content: center;
  width: 22px; height: 22px; min-width: 22px;
  background: var(--green); color: var(--white);
  border-radius: 50%; font-size: .75rem; font-weight: 700;
}

.vorteile__image {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.vorteile__image img { width: 100%; height: 480px; object-fit: cover; }

/* ===========================
   KONTAKT
   =========================== */
.kontakt { background: var(--white); }
.kontakt__grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 56px;
  align-items: start;
}
.kontakt__block { margin-bottom: 28px; }
.kontakt__block h3 {
  font-size: .8rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--green); margin-bottom: 6px;
}
.kontakt__block p { color: var(--gray-700); font-size: .97rem; line-height: 1.6; }
.kontakt__block a { color: var(--green); font-weight: 600; }
.kontakt__block a:hover { text-decoration: underline; }

/* FORM */
.kontakt__form { display: flex; flex-direction: column; gap: 18px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form__group { display: flex; flex-direction: column; gap: 6px; }
.form__group label { font-size: .85rem; font-weight: 600; color: var(--gray-700); }
.form__group input,
.form__group select,
.form__group textarea {
  padding: 12px 16px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius);
  font-family: var(--font); font-size: .95rem;
  color: var(--dark);
  background: var(--white);
  transition: border-color var(--transition);
  outline: none;
}
.form__group input:focus,
.form__group select:focus,
.form__group textarea:focus { border-color: var(--green); }
.form__group textarea { resize: vertical; }

.form__check { flex-direction: row !important; align-items: flex-start; gap: 12px; }
.form__check input[type="checkbox"] { margin-top: 3px; accent-color: var(--green); width: 16px; height: 16px; }
.form__check label { font-size: .88rem; color: var(--gray-500); font-weight: 400; }
.form__check a { color: var(--green); font-weight: 600; }

.form__hint { font-size: .88rem; color: var(--green); font-weight: 600; min-height: 20px; }
.form__hint.error { color: #c0392b; }

/* ===========================
   FOOTER
   =========================== */
.footer { background: var(--dark); color: rgba(255,255,255,.75); }
.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding: 64px 24px 48px;
}
.footer__brand .nav__logo { margin-bottom: 16px; }
.footer__brand p { font-size: .9rem; line-height: 1.7; color: rgba(255,255,255,.55); }

.footer__links h4,
.footer__contact h4 {
  font-size: .8rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--white); margin-bottom: 16px;
}
.footer__links ul { display: flex; flex-direction: column; gap: 10px; }
.footer__links a,
.footer__contact a {
  font-size: .9rem; color: rgba(255,255,255,.6);
  transition: color var(--transition);
}
.footer__links a:hover,
.footer__contact a:hover { color: var(--white); }
.footer__contact p { font-size: .9rem; color: rgba(255,255,255,.6); margin-bottom: 8px; }

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 20px 24px;
}
.footer__bottom p { font-size: .82rem; color: rgba(255,255,255,.35); text-align: center; }

/* ===========================
   RESPONSIVE
   =========================== */
@media (max-width: 1024px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .footer__inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav__menu {
    display: none;
    flex-direction: column;
    position: fixed; top: 68px; left: 0; right: 0;
    background: rgba(15,26,18,.98);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid rgba(255,255,255,.08);
  }
  .nav__menu.open { display: flex; }
  .nav__toggle { display: flex; }

  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .cards { grid-template-columns: 1fr; }
  .sortiment__grid { grid-template-columns: 1fr; }
  .sortiment__item--large { grid-row: span 1; min-height: 300px; }
  .vorteile__inner { grid-template-columns: 1fr; }
  .vorteile__image { order: -1; }
  .vorteile__image img { height: 280px; }
  .kontakt__grid { grid-template-columns: 1fr; }
  .form__row { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; gap: 32px; padding: 48px 24px 32px; }
  .hero__cta { flex-direction: column; }
}

@media (max-width: 480px) {
  .section { padding: 64px 0; }
  .stats__grid { grid-template-columns: 1fr 1fr; }
}