/* ============================================================
   AR Mietgeräte – Haupt-Stylesheet
   Struktur: Reset → Variablen → Base → Layout → Komponenten
              → Seiten → Responsive
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@400;600;700&family=Source+Sans+3:wght@400;500;600&display=swap');

/* ============================================================
   1. CSS-VARIABLEN
   ============================================================ */
:root {
  --color-bg:         #1a1a1a;
  --color-header:     #111111;
  --color-footer:     #111111;
  --color-surface:    #242424;
  --color-surface-2:  #2e2e2e;
  --color-yellow:     #f5c400;
  --color-yellow-dk:  #d4a800;
  --color-white:      #f0f0f0;
  --color-gray-light: #b0b0b0;
  --color-gray-mid:   #6a6a6a;
  --color-error:      #e05252;
  --color-success:    #52b052;
  --color-border:     #333333;

  --font-display: 'Oswald', sans-serif;
  --font-body:    'Source Sans 3', sans-serif;

  --radius:    4px;
  --shadow:    0 2px 12px rgba(0,0,0,.45);
  --shadow-lg: 0 6px 32px rgba(0,0,0,.6);

  --max-width: 1200px;
  --header-h:  72px;
  --transition: 0.2s ease;
}

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

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

body {
  background-color: var(--color-bg);
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

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

a {
  color: var(--color-yellow);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-yellow-dk);
}

ul {
  list-style: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: .02em;
}

/* ============================================================
   3. UTILITY
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 4rem 0;
}

.section--dark {
  background: var(--color-surface);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  color: var(--color-yellow);
  margin-bottom: 2rem;
  position: relative;
  padding-bottom: .75rem;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background: var(--color-yellow);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}

/* ============================================================
   4. HEADER & NAVIGATION
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-header);
  height: var(--header-h);
  display: flex;
  align-items: center;
  border-bottom: 3px solid var(--color-yellow);
  box-shadow: var(--shadow);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: .5rem;
  text-decoration: none;
}

.logo-mark {
  width: 42px;
  height: 42px;
  background: var(--color-yellow);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  flex-shrink: 0;
}

.logo-mark span {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: #111;
  letter-spacing: -.02em;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-yellow);
  letter-spacing: .04em;
  line-height: 1.1;
}

.logo-sub {
  display: block;
  font-family: var(--font-body);
  font-size: .65rem;
  color: var(--color-gray-light);
  font-weight: 400;
  letter-spacing: .12em;
  text-transform: uppercase;
}

/* Desktop Nav */
.site-nav {
  display: flex;
  align-items: center;
  gap: .25rem;
}

.site-nav a {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--color-yellow);
  padding: .5rem .85rem;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
}

.site-nav a:hover,
.site-nav a.active {
  background: var(--color-yellow);
  color: #111;
}

/* Burger Button */
.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  background: transparent;
  border: 2px solid var(--color-yellow);
  border-radius: var(--radius);
  cursor: pointer;
  padding: 8px;
}

.burger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-yellow);
  transition: transform var(--transition), opacity var(--transition);
}

.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Nav Drawer */
.mobile-nav {
  display: none;
  flex-direction: column;
  position: absolute;
  top: var(--header-h);
  left: 0;
  right: 0;
  background: var(--color-header);
  border-bottom: 3px solid var(--color-yellow);
  padding: 1rem 1.5rem;
  gap: .25rem;
  z-index: 99;
}

.mobile-nav.open {
  display: flex;
}

.mobile-nav a {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--color-yellow);
  padding: .65rem 1rem;
  border-radius: var(--radius);
  display: block;
}

.mobile-nav a:hover,
.mobile-nav a.active {
  background: var(--color-yellow);
  color: #111;
}

/* ============================================================
   5. HERO SLIDER
   ============================================================ */
.hero-slider {
  position: relative;
  width: 100%;
  height: clamp(320px, 55vw, 620px);
  overflow: hidden;
  background: #111;
}

.slider-track {
  display: flex;
  height: 100%;
  transition: transform .5s cubic-bezier(.4,0,.2,1);
}

.slide {
  min-width: 100%;
  height: 100%;
  position: relative;
  overflow: hidden;
}

.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%) contrast(1.05);
}

.slide-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(0,0,0,.72) 0%,
    rgba(0,0,0,.35) 60%,
    rgba(0,0,0,.1) 100%
  );
  display: flex;
  align-items: flex-end;
  padding: 2.5rem;
}

.slide-content {
  max-width: 600px;
}

.slide-content h2 {
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  color: var(--color-yellow);
  margin-bottom: .5rem;
}

.slide-content p {
  font-size: clamp(.95rem, 1.8vw, 1.15rem);
  color: var(--color-white);
  opacity: .9;
}

/* Slider Controls */
.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  background: rgba(17,17,17,.7);
  border: 2px solid var(--color-yellow);
  color: var(--color-yellow);
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: var(--radius);
  font-size: 1.4rem;
  transition: background var(--transition);
  line-height: 1;
}

.slider-btn:hover {
  background: var(--color-yellow);
  color: #111;
}

.slider-btn.prev { left: 1rem; }
.slider-btn.next { right: 1rem; }

/* Slider Dots */
.slider-dots {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: .5rem;
  z-index: 10;
}

.slider-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,.4);
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}

.slider-dot.active {
  background: var(--color-yellow);
  transform: scale(1.2);
}

/* Slider Autoplay Toggle */
.slider-autoplay-toggle {
  position: absolute;
  bottom: 1rem;
  right: 1rem;
  z-index: 10;
  background: rgba(17,17,17,.7);
  border: 1px solid var(--color-gray-mid);
  color: var(--color-gray-light);
  font-size: .7rem;
  padding: .3rem .6rem;
  cursor: pointer;
  border-radius: var(--radius);
  font-family: var(--font-body);
  letter-spacing: .05em;
  text-transform: uppercase;
  transition: border-color var(--transition);
}

.slider-autoplay-toggle:hover {
  border-color: var(--color-yellow);
  color: var(--color-yellow);
}

/* ============================================================
   6. ÜBER UNS
   ============================================================ */
.about-text {
  max-width: 780px;
  font-size: 1.05rem;
  color: var(--color-gray-light);
  line-height: 1.75;
}

/* ============================================================
   7. ANGEBOTS-KARTEN (Startseite)
   ============================================================ */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

.card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-yellow);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  transition: box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.card-icon {
  width: 64px;
  height: 64px;
  margin-bottom: 1.25rem;
  object-fit: contain;
}

/* SVG-Fallback-Icons (inline) */
.card-icon-svg {
  width: 56px;
  height: 56px;
  margin-bottom: 1.25rem;
  fill: none;
  stroke: var(--color-yellow);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.card h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--color-yellow);
  margin-bottom: .75rem;
}

.card p {
  color: var(--color-gray-light);
  font-size: .95rem;
}

/* ============================================================
   8. PRODUKTE
   ============================================================ */
/* Hero Produkte */
.hero-produkte {
  position: relative;
  width: 100%;
  height: clamp(280px, 45vw, 520px);
  overflow: hidden;
  background: #111;
}

.hero-produkte img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%) contrast(1.05);
}

.hero-produkte-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.6);
  display: flex;
  align-items: center;
  padding: 2.5rem;
}

.hero-produkte-content {
  border-left: 4px solid var(--color-yellow);
  padding-left: 1.5rem;
  max-width: 500px;
}

.hero-produkte-content h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--color-yellow);
  margin-bottom: .5rem;
}

.hero-produkte-content p {
  color: var(--color-white);
  font-size: 1rem;
  margin-bottom: .75rem;
}

.hero-produkte-content ul {
  list-style: none;
}

.hero-produkte-content ul li::before {
  content: '▶ ';
  color: var(--color-yellow);
  font-size: .75rem;
}

.hero-produkte-content ul li {
  color: var(--color-gray-light);
  font-size: .95rem;
}

/* Produkt-Grid */
.produkte-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 1rem;
}

.produkt-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}

.produkt-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.produkt-card-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  filter: grayscale(100%) contrast(1.05);
  background: #2a2a2a;
}

.produkt-card-img-placeholder {
  width: 100%;
  height: 220px;
  background: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-mid);
  font-size: .85rem;
  letter-spacing: .05em;
}

.produkt-card-body {
  padding: 1.5rem;
}

.produkt-card-body h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  color: var(--color-yellow);
  margin-bottom: .5rem;
}

.produkt-card-body p {
  color: var(--color-gray-light);
  font-size: .95rem;
  margin-bottom: 1rem;
}

.produkt-card-body ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .35rem;
}

.produkt-card-body ul li {
  color: var(--color-gray-light);
  font-size: .9rem;
  padding-left: 1.1rem;
  position: relative;
}

.produkt-card-body ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-yellow);
  font-weight: 700;
}

/* ============================================================
   9. KONTAKT
   ============================================================ */
.kontakt-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 3rem;
  align-items: start;
}

/* Formular */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: .85rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--color-gray-light);
  margin-bottom: .4rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: .65rem .9rem;
  transition: border-color var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-yellow);
}

.form-group input.error,
.form-group textarea.error {
  border-color: var(--color-error);
}

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

.form-group input[type="date"] {
  color-scheme: dark;
}

/* Checkboxen Interessen */
.checkbox-group {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: .5rem .75rem;
  margin-top: .5rem;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: .5rem;
  cursor: pointer;
  font-size: .95rem;
  color: var(--color-gray-light);
}

.checkbox-item input[type="checkbox"] {
  width: auto;
  width: 18px;
  height: 18px;
  accent-color: var(--color-yellow);
  cursor: pointer;
  flex-shrink: 0;
}

/* DSGVO Checkbox */
.dsgvo-checkbox {
  display: flex;
  align-items: flex-start;
  gap: .65rem;
  margin: 1.5rem 0;
  font-size: .9rem;
  color: var(--color-gray-light);
  cursor: pointer;
}

.dsgvo-checkbox input {
  width: 18px;
  height: 18px;
  accent-color: var(--color-yellow);
  flex-shrink: 0;
  margin-top: 2px;
}

.dsgvo-checkbox.error-label {
  color: var(--color-error);
}

/* Fehlermeldungen */
.field-error {
  display: block;
  color: var(--color-error);
  font-size: .8rem;
  margin-top: .3rem;
}

/* Submit Button */
.btn-primary {
  display: inline-block;
  background: var(--color-yellow);
  color: #111;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: .8rem 2.2rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}

.btn-primary:hover {
  background: var(--color-yellow-dk);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

/* Erfolgs-/Fehlermeldung Formular */
.form-message {
  display: none;
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  margin-top: 1rem;
  font-weight: 500;
}

.form-message.success {
  display: block;
  background: rgba(82,176,82,.15);
  border: 1px solid var(--color-success);
  color: var(--color-success);
}

.form-message.error {
  display: block;
  background: rgba(224,82,82,.12);
  border: 1px solid var(--color-error);
  color: var(--color-error);
}

/* Rechte Spalte Kontakt */
.kontakt-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.info-box {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-yellow);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.info-box h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--color-yellow);
  margin-bottom: 1rem;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.info-box p,
.info-box address {
  color: var(--color-gray-light);
  font-style: normal;
  font-size: .95rem;
  line-height: 1.75;
}

.info-box a {
  color: var(--color-yellow);
}

.info-box strong {
  color: var(--color-white);
}

.oeffnung-row {
  display: flex;
  justify-content: space-between;
  font-size: .92rem;
  color: var(--color-gray-light);
  padding: .3rem 0;
  border-bottom: 1px solid var(--color-border);
}

.oeffnung-row:last-child {
  border-bottom: none;
}

.oeffnung-row .day {
  color: var(--color-white);
  font-weight: 500;
}

.oeffnung-row .closed {
  color: var(--color-gray-mid);
}

/* Leaflet Map */
#map {
  height: 320px;
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  margin-top: 2rem;
  z-index: 0;
}

/* ============================================================
   10. IMPRESSUM / DATENSCHUTZ
   ============================================================ */
.legal-content {
  max-width: 780px;
}

.legal-content h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--color-yellow);
  margin: 2rem 0 .75rem;
  padding-bottom: .4rem;
  border-bottom: 1px solid var(--color-border);
}

.legal-content h2:first-child {
  margin-top: 0;
}

.legal-content h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--color-white);
  margin: 1.5rem 0 .5rem;
}

.legal-content p {
  color: var(--color-gray-light);
  margin-bottom: .75rem;
  font-size: .97rem;
  line-height: 1.75;
}

.legal-content ul {
  list-style: disc;
  padding-left: 1.5rem;
  color: var(--color-gray-light);
  margin-bottom: 1rem;
}

.legal-content ul li {
  margin-bottom: .35rem;
  font-size: .97rem;
}

.legal-content a {
  word-break: break-all;
}

.muster-hinweis {
  background: rgba(245,196,0,.1);
  border: 1px solid var(--color-yellow);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 2rem;
  color: var(--color-yellow);
  font-size: .9rem;
}

/* Page Hero (Text only, für Impressum etc.) */
.page-hero {
  background: var(--color-surface);
  border-bottom: 3px solid var(--color-yellow);
  padding: 2.5rem 0;
}

.page-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  color: var(--color-yellow);
}

/* ============================================================
   11. FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-footer);
  border-top: 3px solid var(--color-yellow);
  padding: 2rem 0;
  margin-top: auto;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-text {
  color: var(--color-gray-light);
  font-size: .88rem;
  line-height: 1.6;
}

.footer-text strong {
  color: var(--color-yellow);
  font-family: var(--font-display);
  font-size: .95rem;
  letter-spacing: .04em;
}

.footer-badge {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: .4rem .85rem;
  font-size: .75rem;
  color: var(--color-gray-mid);
  letter-spacing: .06em;
  text-transform: uppercase;
}

.footer-nav {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.footer-nav a {
  color: var(--color-gray-light);
  font-size: .85rem;
  transition: color var(--transition);
}

.footer-nav a:hover {
  color: var(--color-yellow);
}

/* ============================================================
   12. COOKIE-BANNER
   ============================================================ */
#cookie-banner {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  background: var(--color-header);
  border-top: 3px solid var(--color-yellow);
  padding: 1rem 1.5rem;
  box-shadow: 0 -4px 24px rgba(0,0,0,.6);
}

#cookie-banner.visible {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.cookie-text {
  color: var(--color-gray-light);
  font-size: .9rem;
  flex: 1;
}

.cookie-text a {
  color: var(--color-yellow);
  text-decoration: underline;
}

.cookie-accept {
  background: var(--color-yellow);
  color: #111;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .95rem;
  letter-spacing: .05em;
  text-transform: uppercase;
  padding: .55rem 1.5rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--transition);
}

.cookie-accept:hover {
  background: var(--color-yellow-dk);
}

/* ============================================================
   13. RESPONSIVE
   ============================================================ */

/* Tablet */
@media (max-width: 900px) {
  .kontakt-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Mobile Nav */
@media (max-width: 720px) {
  .site-nav {
    display: none;
  }

  .burger {
    display: flex;
  }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
  }

  .slider-btn {
    width: 38px;
    height: 38px;
    font-size: 1.1rem;
  }

  .slide-overlay {
    padding: 1.25rem;
  }

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

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

  .hero-produkte-overlay {
    padding: 1.25rem;
  }
}

@media (max-width: 480px) {
  :root {
    --header-h: 64px;
  }

  .logo-sub {
    display: none;
  }

  .section {
    padding: 2.5rem 0;
  }

  #cookie-banner.visible {
    flex-direction: column;
    align-items: flex-start;
  }
}