/* ============================================================
   Huber Gebäudereinigung GmbH — Stylesheet
   Mobile First · WCAG 2.1 AA · PageSpeed-optimiert
   ============================================================ */

/* ---------- Custom Properties ---------- */
:root {
  --c-primary:       #0d4a8c;
  --c-primary-dark:  #083670;
  --c-primary-light: #1a6bc9;
  --c-accent:        #e8f1fa;
  --c-text:          #1a2332;
  --c-text-light:    #4a5e75;
  --c-white:         #ffffff;
  --c-bg:            #f6f9fc;
  --c-border:        #d0dcea;
  --c-success:       #2a7a4b;
  --c-hero-overlay:  rgba(8, 30, 60, 0.55);

  --font-base: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --radius:    8px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 4px rgba(13,74,140,.08);
  --shadow-md: 0 4px 18px rgba(13,74,140,.13);
  --shadow-lg: 0 12px 40px rgba(13,74,140,.18);
  --transition: 0.22s ease;
  --max-w:     1140px;
}

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

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

body {
  font-family: var(--font-base);
  color: var(--c-text);
  background: var(--c-white);
  line-height: 1.65;
  min-height: 100vh;
}

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

/* ---------- Skip Link (Accessibility) ---------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px; height: 1px;
  overflow: hidden;
  z-index: 9999;
}
.skip-link:focus {
  position: fixed;
  left: 1rem; top: 1rem;
  width: auto; height: auto;
  background: var(--c-primary);
  color: var(--c-white);
  padding: .6rem 1.2rem;
  border-radius: var(--radius);
  font-weight: 600;
  box-shadow: var(--shadow-md);
}

/* ---------- Focus Styles (WCAG) ---------- */
:focus-visible {
  outline: 3px solid var(--c-primary-light);
  outline-offset: 3px;
  border-radius: 3px;
}

/* ---------- Typography Scale ---------- */
h1, h2, h3, h4 {
  line-height: 1.25;
  font-weight: 700;
  color: var(--c-primary-dark);
}
h1 { font-size: clamp(1.75rem, 5vw, 2.8rem); }
h2 { font-size: clamp(1.4rem, 3.5vw, 2rem); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.3rem); }
h4 { font-size: 1rem; }
p  { max-width: 68ch; }

/* ---------- Container ---------- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.75rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .95rem;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
  line-height: 1;
}
.btn-primary {
  background: var(--c-primary);
  color: var(--c-white);
  box-shadow: 0 4px 16px rgba(13,74,140,.35);
}
.btn-primary:hover, .btn-primary:focus-visible {
  background: var(--c-primary-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(13,74,140,.4);
}
.btn-outline {
  background: transparent;
  color: var(--c-white);
  border: 2px solid rgba(255,255,255,.75);
}
.btn-outline:hover, .btn-outline:focus-visible {
  background: rgba(255,255,255,.12);
  border-color: var(--c-white);
}
.btn-ghost {
  background: transparent;
  color: var(--c-primary);
  border: 2px solid var(--c-primary);
}
.btn-ghost:hover, .btn-ghost:focus-visible {
  background: var(--c-primary);
  color: var(--c-white);
}

/* ---------- Section Utility ---------- */
.section {
  padding-block: 4.5rem;
}
.section--alt {
  background: var(--c-bg);
}
.section__label {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-primary-light);
  margin-bottom: .6rem;
}
.section__title {
  margin-bottom: 1rem;
}
.section__lead {
  font-size: 1.05rem;
  color: var(--c-text-light);
  margin-bottom: 2.5rem;
}

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--c-white);
  box-shadow: 0 2px 12px rgba(8,30,60,.1);
  border-bottom: 1px solid var(--c-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 70px;
}
.logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.logo img {
  height: 52px;
  width: auto;
  object-fit: contain;
}
.logo-text {
  color: var(--c-primary-dark);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.2;
}
.logo-text span {
  display: block;
  font-size: .72rem;
  font-weight: 400;
  opacity: .7;
  letter-spacing: .04em;
}

/* Primary Nav */
.primary-nav {
  display: none;
}
.primary-nav ul {
  display: flex;
  gap: .25rem;
  align-items: center;
}
.primary-nav a {
  color: var(--c-text);
  font-size: .9rem;
  font-weight: 500;
  padding: .45rem .85rem;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
}
.primary-nav a:hover,
.primary-nav a:focus-visible,
.primary-nav a[aria-current="page"] {
  background: var(--c-accent);
  color: var(--c-primary);
}
.nav-cta {
  background: var(--c-primary) !important;
  color: var(--c-white) !important;
  padding: .45rem 1.1rem !important;
  font-weight: 600 !important;
}
.nav-cta:hover { background: var(--c-primary-light) !important; }

/* Hamburger */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: .5rem;
  border-radius: var(--radius);
  color: var(--c-text);
  width: 44px; height: 44px;
  transition: background var(--transition);
}
.hamburger:hover, .hamburger:focus-visible {
  background: var(--c-accent);
}
.hamburger span {
  display: block;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
  transform-origin: center;
}
.hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Nav Drawer */
.mobile-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0; right: 0;
  background: var(--c-white);
  border-top: 1px solid var(--c-border);
  padding: 1rem 1.25rem 1.5rem;
  box-shadow: 0 8px 24px rgba(8,30,60,.12);
}
.mobile-nav.is-open { display: block; }
.mobile-nav ul { display: flex; flex-direction: column; gap: .25rem; }
.mobile-nav a {
  display: block;
  color: var(--c-text);
  font-size: .95rem;
  font-weight: 500;
  padding: .65rem .75rem;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
}
.mobile-nav a:hover, .mobile-nav a:focus-visible {
  background: var(--c-accent);
  color: var(--c-primary);
}
.mobile-nav a[aria-current="page"] {
  background: var(--c-accent);
  color: var(--c-primary);
}

@media (min-width: 768px) {
  .primary-nav { display: block; }
  .hamburger    { display: none; }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  object-fit: cover;
  width: 100%; height: 100%;
  z-index: 0;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: var(--c-hero-overlay);
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  padding-block: 5rem 4rem;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  background: rgba(255,255,255,.15);
  border: 1px solid rgba(255,255,255,.3);
  color: rgba(255,255,255,.95);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .35rem .85rem;
  border-radius: 99px;
  margin-bottom: 1.2rem;
  backdrop-filter: blur(4px);
}
.hero h1 {
  color: var(--c-white);
  margin-bottom: .9rem;
}
.hero-sub {
  color: rgba(255,255,255,.88);
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  max-width: 52ch;
  margin-bottom: 2rem;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .85rem;
}
.hero-scroll {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  color: rgba(255,255,255,.6);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .3rem;
  font-size: .72rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  animation: bounceY 2s ease-in-out infinite;
}
@keyframes bounceY {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(6px); }
}

/* ============================================================
   STATS BAR
   ============================================================ */
.stats-bar {
  background: var(--c-primary);
  padding-block: 1.5rem;
}
.stats-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  text-align: center;
}
.stat {
  flex: 1 1 140px;
  color: var(--c-white);
}
.stat-value {
  font-size: 1.7rem;
  font-weight: 800;
  line-height: 1;
  display: block;
}
.stat-label {
  font-size: .8rem;
  opacity: .82;
  margin-top: .25rem;
}

/* ============================================================
   SERVICES
   ============================================================ */
.services-grid {
  display: grid;
  gap: 1.75rem;
  grid-template-columns: 1fr;
}
.service-card {
  background: var(--c-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}
.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}
.service-card__img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}
.service-card__body {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.service-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px; height: 52px;
  background: var(--c-accent);
  border-radius: var(--radius);
  margin-bottom: 1rem;
  color: var(--c-primary);
}
.service-card__icon svg { width: 26px; height: 26px; flex-shrink: 0; }
.service-card h3 { margin-bottom: .5rem; }
.service-card p {
  color: var(--c-text-light);
  font-size: .93rem;
  flex: 1;
}

@media (min-width: 600px)  { .services-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 900px)  { .services-grid { grid-template-columns: repeat(3, 1fr); } }

/* ============================================================
   WHY US
   ============================================================ */
.whyus-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
}
.whyus-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 1.4rem 1.5rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.whyus-item:hover {
  border-color: var(--c-primary-light);
  box-shadow: var(--shadow-sm);
}
.whyus-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px; height: 46px;
  background: var(--c-accent);
  border-radius: var(--radius);
  flex-shrink: 0;
  color: var(--c-primary);
}
.whyus-icon svg { width: 22px; height: 22px; }
.whyus-item h3 { font-size: 1rem; margin-bottom: .25rem; }
.whyus-item p  { font-size: .88rem; color: var(--c-text-light); max-width: none; }

@media (min-width: 600px) { .whyus-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 960px) { .whyus-grid { grid-template-columns: repeat(3, 1fr); } }

/* ============================================================
   CONTACT + MAP
   ============================================================ */
.contact-wrap {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: 1fr;
}
.contact-info { display: flex; flex-direction: column; gap: 1.25rem; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.contact-item__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px; height: 46px;
  background: var(--c-accent);
  border-radius: var(--radius);
  flex-shrink: 0;
  color: var(--c-primary);
}
.contact-item__icon svg { width: 22px; height: 22px; }
.contact-item__body strong { display: block; font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--c-text-light); margin-bottom: .15rem; }
.contact-item__body a { color: var(--c-primary); font-weight: 600; }
.contact-item__body a:hover { text-decoration: underline; }

.map-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  min-height: 320px;
  position: relative;
  background: var(--c-accent);
}
.map-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  height: 100%;
  min-height: 320px;
  text-align: center;
  padding: 2rem;
  color: var(--c-text-light);
}
.map-placeholder svg { width: 48px; height: 48px; color: var(--c-primary); opacity: .5; }
.map-placeholder p { font-size: .9rem; max-width: 30ch; }
.map-placeholder .btn { font-size: .85rem; }
.map-iframe {
  display: none;
  width: 100%;
  height: 400px;
  border: 0;
}
.map-iframe.is-visible { display: block; }

@media (min-width: 900px) {
  .contact-wrap { grid-template-columns: 1fr 1.4fr; align-items: start; }
  .map-wrap, .map-iframe { height: 420px; }
}

/* ============================================================
   CTA BANNER
   ============================================================ */
.cta-banner {
  background: linear-gradient(135deg, var(--c-primary-dark) 0%, var(--c-primary-light) 100%);
  padding-block: 3.5rem;
  text-align: center;
}
.cta-banner h2 { color: var(--c-white); margin-bottom: .75rem; }
.cta-banner p  { color: rgba(255,255,255,.82); max-width: 50ch; margin-inline: auto; margin-bottom: 1.75rem; }
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}
.btn-white {
  background: var(--c-white);
  color: var(--c-primary-dark);
  box-shadow: 0 4px 16px rgba(0,0,0,.2);
}
.btn-white:hover, .btn-white:focus-visible {
  background: var(--c-accent);
  transform: translateY(-2px);
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--c-white);
  color: var(--c-text-light);
  padding-block: 3rem 1.5rem;
  border-top: 1px solid var(--c-border);
}
.footer-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr;
  margin-bottom: 2.5rem;
}
.footer-brand .logo-text { color: var(--c-primary-dark); margin-top: .6rem; }
.footer-brand p { font-size: .88rem; margin-top: .75rem; color: var(--c-text-light); max-width: none; }
.footer-col h4 {
  color: var(--c-text);
  font-size: .82rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-bottom: .85rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: .45rem; }
.footer-col a {
  color: var(--c-text-light);
  font-size: .88rem;
  transition: color var(--transition);
}
.footer-col a:hover, .footer-col a:focus-visible { color: var(--c-primary); text-decoration: underline; }
.footer-bottom {
  border-top: 1px solid var(--c-border);
  padding-top: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  align-items: center;
  justify-content: space-between;
  font-size: .82rem;
  color: var(--c-text-light);
}
.footer-bottom a { color: var(--c-text-light); }
.footer-bottom a:hover { color: var(--c-primary); text-decoration: underline; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }

/* Cookie-Settings Button */
.cookie-settings-btn {
  background: var(--c-accent);
  border: 1px solid var(--c-border);
  color: var(--c-text-light);
  padding: .3rem .8rem;
  border-radius: 99px;
  font-size: .78rem;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}
.cookie-settings-btn:hover, .cookie-settings-btn:focus-visible {
  background: var(--c-primary);
  color: var(--c-white);
  border-color: var(--c-primary);
}

@media (min-width: 600px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 900px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr; } }

/* ============================================================
   COOKIE CONSENT BANNER
   ============================================================ */
.cookie-banner {
  position: fixed;
  bottom: 1.25rem;
  left: 1.25rem;
  right: 1.25rem;
  max-width: 680px;
  margin-inline: auto;
  background: var(--c-white);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 40px rgba(8,30,60,.22), 0 0 0 1px rgba(13,74,140,.1);
  padding: 1.5rem;
  z-index: 999;
  display: none;
}
.cookie-banner.is-visible { display: block; }
.cookie-banner__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-primary-dark);
  margin-bottom: .5rem;
}
.cookie-banner__text {
  font-size: .85rem;
  color: var(--c-text-light);
  margin-bottom: 1.25rem;
  max-width: none;
}
.cookie-banner__text a {
  color: var(--c-primary);
  text-decoration: underline;
}
.cookie-banner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
}
.cookie-banner__actions .btn {
  padding: .55rem 1.25rem;
  font-size: .85rem;
}
.btn-cookie-accept {
  background: var(--c-primary);
  color: var(--c-white);
  border-radius: var(--radius);
}
.btn-cookie-accept:hover { background: var(--c-primary-light); }
.btn-cookie-essential {
  background: var(--c-bg);
  color: var(--c-text);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}
.btn-cookie-essential:hover { background: var(--c-accent); }

/* ============================================================
   LEGAL PAGES (Impressum / Datenschutz)
   ============================================================ */
.page-hero {
  background: linear-gradient(135deg, var(--c-primary-dark) 0%, var(--c-primary) 100%);
  padding-block: 3.5rem 3rem;
  color: var(--c-white);
}
.page-hero h1 { color: var(--c-white); margin-bottom: .5rem; }
.page-hero p  { color: rgba(255,255,255,.8); font-size: 1rem; }

.legal-content {
  padding-block: 3rem 4rem;
}
.legal-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 2rem 2rem;
  max-width: 860px;
}
.legal-card h2 {
  font-size: 1.15rem;
  margin-top: 2rem;
  margin-bottom: .5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--c-border);
}
.legal-card h2:first-child { margin-top: 0; padding-top: 0; border-top: none; }
.legal-card p { font-size: .93rem; color: var(--c-text); max-width: none; margin-bottom: .75rem; }
.legal-card a { color: var(--c-primary); text-decoration: underline; }
.legal-card ul { padding-left: 1.25rem; list-style: disc; margin-bottom: .75rem; }
.legal-card ul li { font-size: .93rem; color: var(--c-text); margin-bottom: .3rem; }
.legal-card strong { font-weight: 600; }

/* ============================================================
   RESPONSIVE TWEAKS
   ============================================================ */
@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .cta-actions  { flex-direction: column; align-items: center; }
  .cookie-banner { left: .75rem; right: .75rem; bottom: .75rem; }
}

@media (min-width: 768px) {
  .section { padding-block: 5.5rem; }
}

/* Prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  html { scroll-behavior: auto; }
}