/* ================================================================
   SWK – Heizung- und Sanitärtechnik GmbH
   style.css  |  Mobile-First  |  Custom Properties
   ================================================================ */

/* ----------------------------------------------------------------
   1. CUSTOM PROPERTIES
   ---------------------------------------------------------------- */
:root {
  /* --- Farben (aus SWK-Logo: Waldgrün + Karminrot) --- */
  --clr-primary:        #2e7d32;   /* Waldgrün – SWK-Logofarbe */
  --clr-primary-dark:   #1f2937;
  --clr-primary-light:  #43a047;
  --clr-primary-xlight: #e8f5e9;

  --clr-accent:         #c8102e;   /* Karminrot – SWK-Logofarbe, AA-konform mit Weiß */
  --clr-accent-dark:    #a50c25;
  --clr-accent-light:   #e53347;

  --clr-gray-50:  #f9fafb;
  --clr-gray-100: #f3f4f6;
  --clr-gray-200: #e5e7eb;
  --clr-gray-300: #d1d5db;
  --clr-gray-400: #9ca3af;
  --clr-gray-500: #6b7280;
  --clr-gray-600: #4b5563;
  --clr-gray-700: #374151;
  --clr-gray-800: #1f2937;
  --clr-gray-900: #111827;

  --clr-white: #ffffff;
  --clr-text:  #1e2d3d;
  --clr-muted: #56677a;

  --clr-success-bg: #d1fae5;
  --clr-success-bd: #6ee7b7;
  --clr-success-tx: #065f46;

  /* --- Typografie --- */
  --ff-heading: 'Manrope', system-ui, sans-serif;
  --ff-body:    'Inter',   system-ui, sans-serif;

  --fs-xs:   0.75rem;    /* 12 px */
  --fs-sm:   0.875rem;   /* 14 px */
  --fs-base: 1rem;       /* 16 px */
  --fs-lg:   1.125rem;   /* 18 px */
  --fs-xl:   1.25rem;    /* 20 px */
  --fs-2xl:  1.5rem;     /* 24 px */
  --fs-3xl:  1.875rem;   /* 30 px */
  --fs-4xl:  2.25rem;    /* 36 px */
  --fs-5xl:  3rem;       /* 48 px */
  --fs-6xl:  3.75rem;    /* 60 px */

  /* --- Abstände --- */
  --sp-1:  0.25rem;
  --sp-2:  0.5rem;
  --sp-3:  0.75rem;
  --sp-4:  1rem;
  --sp-5:  1.25rem;
  --sp-6:  1.5rem;
  --sp-8:  2rem;
  --sp-10: 2.5rem;
  --sp-12: 3rem;
  --sp-16: 4rem;
  --sp-20: 5rem;
  --sp-24: 6rem;

  /* --- Layout --- */
  --container-max: 1200px;
  --container-px:  1rem;

  /* --- Header --- */
  --header-h:       72px;
  --header-h-small: 60px;

  /* --- Border-Radius --- */
  --r-sm:   6px;
  --r-md:   12px;
  --r-lg:   20px;
  --r-xl:   28px;
  --r-full: 9999px;

  /* --- Schatten --- */
  --shadow-sm: 0 1px 3px rgba(0,0,0,.07), 0 1px 2px rgba(0,0,0,.05);
  --shadow-md: 0 4px 16px rgba(0,0,0,.09), 0 2px 6px rgba(0,0,0,.05);
  --shadow-lg: 0 10px 40px rgba(0,0,0,.11), 0 4px 12px rgba(0,0,0,.07);
  --shadow-xl: 0 20px 60px rgba(0,0,0,.14), 0 8px 20px rgba(0,0,0,.08);

  /* --- Übergänge --- */
  --t-fast: 0.18s ease;
  --t-base: 0.24s ease;
  --t-slow: 0.42s ease;
}


/* ----------------------------------------------------------------
   2. RESET & BASIS
   ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--ff-body);
  font-size: var(--fs-base);
  line-height: 1.65;
  color: var(--clr-text);
  background: var(--clr-white);
  overflow-x: hidden;
}

img        { display: block; max-width: 100%; height: auto; }
a          { color: inherit; text-decoration: none; }
ul         { list-style: none; }
address    { font-style: normal; }
button     { font-family: inherit; cursor: pointer; border: none; background: none; }
abbr[title]{ text-decoration: none; }

/* Fokus-Ring – sichtbar für Tastaturnutzer */
:focus-visible {
  outline: 3px solid var(--clr-accent);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

/* Reduzierte Bewegung */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}


/* ----------------------------------------------------------------
   3. LAYOUT-HELFER
   ---------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
}

.section {
  padding-block: var(--sp-16);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: var(--sp-12);
}

.section-label {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: var(--sp-3);
}
.section-label--light { color: var(--clr-accent-light); }

.section-title {
  font-family: var(--ff-heading);
  font-size: var(--fs-3xl);
  font-weight: 800;
  color: var(--clr-primary-dark);
  line-height: 1.18;
  margin-bottom: var(--sp-4);
}
.section-title--light { color: var(--clr-white); }

.section-desc {
  font-size: var(--fs-lg);
  color: var(--clr-muted);
  line-height: 1.7;
}


/* ----------------------------------------------------------------
   4. BUTTONS
   ---------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: .625rem 1.25rem;
  font-family: var(--ff-heading);
  font-size: var(--fs-sm);
  font-weight: 700;
  border-radius: var(--r-full);
  white-space: nowrap;
  transition:
    background var(--t-base),
    color      var(--t-base),
    box-shadow var(--t-base),
    transform  var(--t-base);
}

/* Akzent-Button (orange/kupfer) */
.btn--accent {
  background: var(--clr-accent);
  color: var(--clr-white);
  box-shadow: 0 4px 14px rgba(200,16,46,.32);
}
.btn--accent:hover,
.btn--accent:focus-visible {
  background: var(--clr-accent-dark);
  box-shadow: 0 6px 22px rgba(200,16,46,.42);
  transform: translateY(-2px);
}
.btn--accent:active { transform: translateY(0); }

/* Outline auf dunklem Hintergrund */
.btn--outline-white {
  background: transparent;
  color: var(--clr-white);
  border: 2px solid rgba(255,255,255,.55);
}
.btn--outline-white:hover,
.btn--outline-white:focus-visible {
  background: rgba(255,255,255,.14);
  border-color: var(--clr-white);
}

.btn--lg   { padding: .875rem 1.75rem; font-size: var(--fs-base); }
.btn--full { width: 100%; justify-content: center; }


/* ----------------------------------------------------------------
   5. HEADER
   ---------------------------------------------------------------- */
.header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 100;
  height: var(--header-h);
  background: #ffffff;
  border-bottom: 1px solid transparent;
  transition:
    height       var(--t-base),
    box-shadow   var(--t-base),
    border-color var(--t-base);
}

.header.scrolled {
  height: var(--header-h-small);
  box-shadow: var(--shadow-md);
  border-color: var(--clr-gray-200);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--sp-4);
}

.header__logo-img {
  height: 60px;
  width: auto;
  object-fit: contain;
  transition: height var(--t-base);
}
.header.scrolled .header__logo-img { height: 48px; }

/* Navigation */
.nav__list {
  display: none; /* mobile: hidden by default */
  align-items: center;
  gap: var(--sp-1);
}

.nav__link {
  font-family: var(--ff-heading);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--clr-gray-600);
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--r-sm);
  transition: color var(--t-fast), background var(--t-fast);
}
.nav__link:hover,
.nav__link:focus-visible {
  color: var(--clr-accent);
  background: rgba(200,16,46,.08);
}

/* Header-Aktionen */
.header__actions {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.header__cta {
  padding: .5rem 1rem;
  font-size: var(--fs-xs);
}

/* Hamburger */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: var(--sp-2);
  border-radius: var(--r-sm);
  flex-shrink: 0;
  transition: background var(--t-fast);
}
.hamburger:hover  { background: var(--clr-gray-100); }

.hamburger__line {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--clr-gray-800);
  border-radius: 2px;
  transform-origin: center;
  transition: transform var(--t-base), opacity var(--t-base);
}

.hamburger.is-open .hamburger__line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.is-open .hamburger__line:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.is-open .hamburger__line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Nav Overlay */
.nav.is-open .nav__list {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  position: fixed;
  inset: 0;
  padding-top: calc(var(--header-h) + var(--sp-6));
  padding-inline: var(--sp-6);
  padding-bottom: var(--sp-8);
  background: rgba(255,255,255,.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 99;
  animation: overlayIn var(--t-base) ease both;
}

@keyframes overlayIn {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.nav.is-open .nav__link {
  font-size: var(--fs-2xl);
  padding: var(--sp-4);
  border-bottom: 1px solid var(--clr-gray-200);
  border-radius: 0;
  color: var(--clr-primary-dark);
}
.nav.is-open .nav__link:hover { background: rgba(200,16,46,.08); border-radius: var(--r-sm); }


/* ----------------------------------------------------------------
   6. HERO
   ---------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 75vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: #1a1a1a; /* Fallback */
}

.hero__bg-img {
  width: 100%;
  height: 130%;
  object-fit: cover;
  object-position: center center;
  will-change: transform;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(15,15,15,.75)  0%,
    rgba(30,30,30,.55)  60%,
    rgba(15,15,15,.35) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: var(--sp-10);
  padding-block: var(--sp-16);
}

.hero__eyebrow {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(255,255,255,.85);
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.25);
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--r-full);
  margin-bottom: var(--sp-4);
  backdrop-filter: blur(4px);
}

.hero__title {
  font-family: var(--ff-heading);
  font-size: var(--fs-3xl);
  font-weight: 800;
  color: var(--clr-white);
  line-height: 1.14;
  margin-bottom: var(--sp-5);
  text-shadow: 0 2px 10px rgba(0,0,0,.3);
}

.hero__subtitle {
  font-size: var(--fs-lg);
  color: rgba(255,255,255,.82);
  max-width: 540px;
  line-height: 1.65;
  margin-bottom: var(--sp-8);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
}

.trust-badge {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  background: rgba(255,255,255,.11);
  border: 1px solid rgba(255,255,255,.2);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--clr-white);
  padding: var(--sp-3) var(--sp-4);
  border-radius: var(--r-md);
  font-size: var(--fs-sm);
  font-weight: 600;
}


/* ----------------------------------------------------------------
   7. LEISTUNGEN – CARD GRID
   ---------------------------------------------------------------- */
.leistungen { background: var(--clr-gray-100); }

.cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-6);
}

.card {
  background: var(--clr-white);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--t-base), box-shadow var(--t-base);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.card__img-wrap {
  overflow: hidden;
  height: 210px;
}
.card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.card:hover .card__img { transform: scale(1.06); }

.card__body { padding: var(--sp-6); }

.card__title {
  font-family: var(--ff-heading);
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--clr-primary-dark);
  margin-bottom: var(--sp-3);
}

.card__text {
  font-size: var(--fs-base);
  color: var(--clr-muted);
  line-height: 1.65;
}


/* CTA unter Leistungen-Grid */
.leistungen-cta {
  margin-top: var(--sp-12);
  text-align: center;
  padding: var(--sp-10) var(--sp-8);
}

.leistungen-cta__text {
  font-family: var(--ff-heading);
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--clr-primary-dark);
  margin-bottom: var(--sp-6);
}

.leistungen-cta__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-3);
}

.btn--outline-dark {
  background: transparent;
  color: var(--clr-primary-dark);
  border: 2px solid var(--clr-gray-300);
}
.btn--outline-dark:hover,
.btn--outline-dark:focus-visible {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
}

/* ----------------------------------------------------------------
   8. ÜBER UNS
   ---------------------------------------------------------------- */
.ueber-uns { background: var(--clr-white); }

.ueber-uns__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-12);
  align-items: center;
}

.ueber-uns__intro {
  font-size: var(--fs-lg);
  color: var(--clr-muted);
  line-height: 1.75;
  margin-bottom: var(--sp-8);
}

.usp-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-6);
}

.usp-item {
  display: flex;
  gap: var(--sp-4);
  align-items: flex-start;
}

.usp-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-accent-light));
  border-radius: var(--r-md);
  color: var(--clr-white);
  box-shadow: 0 4px 12px rgba(200,16,46,.28);
}

.usp-text strong {
  display: block;
  font-family: var(--ff-heading);
  font-size: var(--fs-base);
  font-weight: 700;
  color: var(--clr-primary-dark);
  margin-bottom: var(--sp-1);
}
.usp-text p {
  font-size: var(--fs-sm);
  color: var(--clr-muted);
  line-height: 1.6;
}

/* Bild-Seite */
.ueber-uns__visual { position: relative; }

.ueber-uns__img-wrap {
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.ueber-uns__img {
  width: 100%;
  height: 360px;
  object-fit: cover;
}

.ueber-uns__stat-card {
  position: absolute;
  bottom: -18px;
  left: -16px;
  background: var(--clr-accent);
  color: var(--clr-white);
  padding: var(--sp-5) var(--sp-6);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  text-align: center;
  min-width: 116px;
}

.stat-number {
  display: block;
  font-family: var(--ff-heading);
  font-size: var(--fs-3xl);
  font-weight: 800;
  line-height: 1;
}
.stat-label {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  opacity: .88;
}


/* ----------------------------------------------------------------
   9. ZERTIFIZIERUNG
   ---------------------------------------------------------------- */
.section.zertifizierung {
  background: linear-gradient(135deg, #374151 0%, #1f2937 100%);
  padding-block: 40px;
}

.zert__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-10);
  text-align: center;
}

.zert__text {
  font-size: var(--fs-lg);
  color: rgba(255,255,255,.8);
  max-width: 580px;
  line-height: 1.75;
}

.zert__logo-card {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.zert__logo {
  height: 340px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 8px 24px rgba(0,0,0,.25));
}


/* ----------------------------------------------------------------
   10. LEISTUNGSÜBERSICHT (Liste)
   ---------------------------------------------------------------- */
.leistungslist { background: var(--clr-gray-100); }

.leistungen-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-3);
}

.leistungen-grid__item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  background: var(--clr-white);
  padding: var(--sp-4) var(--sp-5);
  border-radius: var(--r-md);
  font-size: var(--fs-base);
  font-weight: 500;
  color: var(--clr-text);
  box-shadow: var(--shadow-sm);
  border-left: 3px solid transparent;
  transition:
    transform    var(--t-base),
    box-shadow   var(--t-base),
    color        var(--t-base),
    border-color var(--t-base);
}
.leistungen-grid__item:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-md);
  color: var(--clr-accent);
  border-color: var(--clr-accent);
}
.leistungen-grid__item svg { flex-shrink: 0; color: var(--clr-accent); }


/* ----------------------------------------------------------------
   11. KONTAKT
   ---------------------------------------------------------------- */
.kontakt { background: var(--clr-white); }

.kontakt__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-10);
}

.kontakt__info-title {
  font-family: var(--ff-heading);
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--clr-primary-dark);
  margin-bottom: var(--sp-6);
}

.kontakt__address {
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
  margin-bottom: var(--sp-8);
}

.kontakt__detail {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-4);
  font-size: var(--fs-base);
  color: var(--clr-muted);
  line-height: 1.6;
}
.kontakt__detail svg { flex-shrink: 0; margin-top: 3px; color: var(--clr-accent); }

.kontakt__link {
  font-weight: 600;
  color: var(--clr-accent);
  transition: color var(--t-fast);
}
.kontakt__link:hover { color: var(--clr-accent-dark); }

.kontakt__hint {
  display: block;
  font-size: var(--fs-xs);
  color: var(--clr-gray-400);
  margin-top: 2px;
}

/* Öffnungszeiten */
.kontakt__hours { margin-bottom: var(--sp-6); }

.kontakt__hours-title {
  font-family: var(--ff-heading);
  font-size: var(--fs-base);
  font-weight: 700;
  color: var(--clr-primary-dark);
  margin-bottom: var(--sp-3);
}

.hours-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-sm);
}
.hours-table td {
  padding: var(--sp-2) var(--sp-3);
  border-bottom: 1px solid var(--clr-gray-200);
  color: var(--clr-muted);
}
.hours-table td:first-child { font-weight: 600; color: var(--clr-text); }
.hours-table__notfall-row td { border-bottom: none; }
.hours-table__notfall { color: var(--clr-accent) !important; font-weight: 700 !important; }

/* OpenStreetMap Karte */
.kontakt__map-wrap {
  margin-top: var(--sp-6);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--clr-gray-200);
}

.kontakt__map-frame {
  display: block;
  width: 100%;
  height: 220px;
  border: none;
}

.kontakt__map-link {
  display: block;
  text-align: right;
  font-size: var(--fs-xs);
  color: var(--clr-muted);
  padding: var(--sp-2) var(--sp-3);
  background: var(--clr-gray-50);
  transition: color var(--t-fast);
}
.kontakt__map-link:hover { color: var(--clr-accent); }

/* Formular-Box */
.kontakt-form-box {
  background: var(--clr-gray-50);
  border: 1px solid var(--clr-gray-200);
  border-radius: var(--r-xl);
  padding: var(--sp-8);
}

.kontakt-form__title {
  font-family: var(--ff-heading);
  font-size: var(--fs-2xl);
  font-weight: 700;
  color: var(--clr-primary-dark);
  margin-bottom: var(--sp-6);
}

.form-group { margin-bottom: var(--sp-5); }

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-4);
}

.form-label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--clr-gray-700);
  margin-bottom: var(--sp-2);
}
.form-label abbr { color: var(--clr-accent); }

.form-control {
  width: 100%;
  padding: .75rem 1rem;
  font-family: var(--ff-body);
  font-size: var(--fs-base);
  color: var(--clr-text);
  background: var(--clr-white);
  border: 2px solid var(--clr-gray-300);
  border-radius: var(--r-md);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
  -webkit-appearance: none;
  appearance: none;
}
.form-control::placeholder { color: var(--clr-gray-400); }
.form-control:focus {
  outline: none;
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 4px rgba(200,16,46,.12);
}
.form-control.is-invalid { border-color: #dc2626; }
.form-control.is-invalid:focus { box-shadow: 0 0 0 4px rgba(220,38,38,.1); }

.form-control--textarea {
  resize: vertical;
  min-height: 130px;
}

/* Erfolgs-Meldung */
.form-success {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-4);
  background: var(--clr-success-bg);
  border: 1px solid var(--clr-success-bd);
  border-radius: var(--r-md);
  padding: var(--sp-5) var(--sp-6);
  color: var(--clr-success-tx);
  margin-top: var(--sp-4);
}
.form-success[hidden] { display: none; }
.form-success svg { flex-shrink: 0; margin-top: 3px; }
.form-success strong { display: block; font-family: var(--ff-heading); margin-bottom: var(--sp-1); }
.form-success p { font-size: var(--fs-sm); opacity: .88; }


/* ----------------------------------------------------------------
   12. FOOTER
   ---------------------------------------------------------------- */
.footer {
  background: var(--clr-primary-dark);
  color: rgba(255,255,255,.7);
  padding-top: var(--sp-16);
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-10);
  padding-bottom: var(--sp-12);
}

.footer__logo-wrap {
  display: inline-block;
  background: var(--clr-white);
  border-radius: var(--r-md);
  padding: var(--sp-2) var(--sp-3);
  margin-bottom: var(--sp-4);
}
.footer__logo {
  height: 42px;
  width: auto;
  object-fit: contain;
}

.footer__tagline {
  font-size: var(--fs-sm);
  line-height: 1.65;
  max-width: 280px;
}

.footer__heading {
  font-family: var(--ff-heading);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--clr-white);
  margin-bottom: var(--sp-4);
}

.footer__address p {
  font-size: var(--fs-sm);
  line-height: 1.85;
}
.footer__address a { transition: color var(--t-fast); }
.footer__address a:hover { color: var(--clr-accent-light); }

.footer__list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.footer__link {
  font-size: var(--fs-sm);
  transition: color var(--t-fast);
}
.footer__link:hover { color: var(--clr-accent-light); }

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-block: var(--sp-5);
  text-align: center;
  font-size: var(--fs-xs);
  color: rgba(255,255,255,.4);
}


/* ----------------------------------------------------------------
   13. SCROLL-REVEAL
   ---------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .65s ease, transform .65s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Versatz (Stagger) für Cards */
.cards-grid .card:nth-child(2) { transition-delay: .08s; }
.cards-grid .card:nth-child(3) { transition-delay: .16s; }
.cards-grid .card:nth-child(4) { transition-delay: .04s; }
.cards-grid .card:nth-child(5) { transition-delay: .12s; }
.cards-grid .card:nth-child(6) { transition-delay: .20s; }


/* ----------------------------------------------------------------
   SCROLL-TO-TOP BUTTON
   ---------------------------------------------------------------- */
.scroll-top {
  position: fixed;
  bottom: var(--sp-6);
  right: var(--sp-6);
  z-index: 200;
  width: 48px;
  height: 48px;
  border-radius: var(--r-full);
  background: var(--clr-accent);
  color: var(--clr-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--t-base), transform var(--t-base), background var(--t-base);
  cursor: pointer;
}

.scroll-top.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.scroll-top[hidden] {
  display: none;
}

.scroll-top:hover,
.scroll-top:focus-visible {
  background: var(--clr-accent-dark);
  transform: translateY(-2px);
}

/* ================================================================
   RESPONSIVE BREAKPOINTS – Mobile-First
   ================================================================ */

/* ---- 480 px ---- */
@media (min-width: 480px) {
  :root { --container-px: 1.5rem; }

  .hero__title   { font-size: var(--fs-4xl); }
  .hero__badges  { flex-direction: row; }

  .leistungen-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ---- 768 px ---- */
@media (min-width: 768px) {
  :root {
    --container-px: 2rem;
  }

  .section { padding-block: var(--sp-20); }

  /* Header: Desktop-Nav einblenden, Hamburger ausblenden */
  .hamburger { display: none; }
  .nav__list { display: flex; }
  /* Mobile-Overlay-Stile zurücksetzen */
  .nav.is-open .nav__list {
    position: static;
    flex-direction: row;
    inset: unset;
    padding: 0;
    background: transparent;
    backdrop-filter: none;
    animation: none;
  }
  .nav.is-open .nav__link {
    font-size: var(--fs-sm);
    padding: var(--sp-2) var(--sp-3);
    border-bottom: none;
    border-radius: var(--r-sm);
    color: var(--clr-gray-600);
  }

  .header__cta { font-size: var(--fs-sm); padding: .625rem 1.25rem; }

  .hero__title { font-size: var(--fs-5xl); }

  .section-title { font-size: var(--fs-4xl); }

  .cards-grid { grid-template-columns: repeat(2, 1fr); }

  .ueber-uns__inner  { grid-template-columns: 1fr 1fr; gap: var(--sp-16); }
  .ueber-uns__img    { height: 420px; }

  .section.zertifizierung { padding-block: 40px; }
  .zert__inner       { flex-direction: row; text-align: left; }
  .zert__content .section-label,
  .zert__content .section-title { text-align: left; }

  .leistungen-grid   { grid-template-columns: repeat(3, 1fr); }

  .kontakt__inner    { grid-template-columns: 1fr 1fr; }
  .form-row          { grid-template-columns: 1fr 1fr; }

  .footer__inner     { grid-template-columns: 2fr 1fr 1fr 1fr; }
  .kontakt__map-frame { height: 260px; }
}

/* ---- 1024 px ---- */
@media (min-width: 1024px) {
  :root { --container-px: 2.5rem; }

  .section { padding-block: var(--sp-24); }

  .hero__title { font-size: var(--fs-6xl); }

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

  .ueber-uns__inner { gap: var(--sp-20); }
  .ueber-uns__img   { height: 480px; }

  .kontakt__map-frame { height: 300px; }
}