/* AudiGetriebespülung.com — Premium automotive aesthetic */
:root {
  --audi-black: #0a0a0a;
  --audi-graphite: #141414;
  --audi-silver: #c8ccd0;
  --audi-chrome: #e8eaec;
  --audi-white: #f5f5f5;
  --audi-red: #bb0a30;
  --audi-red-dark: #8f0825;
  --font-display: "Audiowide", system-ui, sans-serif;
  --font-body: "Source Sans 3", "Segoe UI", system-ui, sans-serif;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--audi-chrome);
  background: var(--audi-black);
  -webkit-font-smoothing: antialiased;
}

.skip-link {
  position: absolute;
  left: -9999px;
  z-index: 999;
  padding: 0.75rem 1rem;
  background: var(--audi-red);
  color: var(--audi-white);
  font-weight: 600;
  text-decoration: none;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

a {
  color: var(--audi-silver);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--audi-chrome);
}

strong {
  color: var(--audi-white);
  font-weight: 600;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(200, 204, 208, 0.08);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: inherit;
}

.brand-text {
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  color: var(--audi-white);
}

.brand-accent {
  color: var(--audi-silver);
  font-weight: 400;
}

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

.nav-main a {
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9375rem;
  color: var(--audi-silver);
}

.nav-main a:hover {
  color: var(--audi-white);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.25rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: 2px;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background 0.2s var(--ease-out), color 0.2s, border-color 0.2s, transform 0.15s;
}

.btn:focus-visible {
  outline: 2px solid var(--audi-red);
  outline-offset: 3px;
}

.btn-primary {
  background: linear-gradient(180deg, var(--audi-red) 0%, var(--audi-red-dark) 100%);
  color: var(--audi-white);
  border-color: rgba(255, 255, 255, 0.12);
}

.btn-primary:hover {
  filter: brightness(1.08);
  color: var(--audi-white);
}

.btn-ghost {
  background: transparent;
  color: var(--audi-chrome);
  border-color: rgba(200, 204, 208, 0.35);
}

.btn-ghost:hover {
  border-color: var(--audi-silver);
  color: var(--audi-white);
}

.btn-lg {
  padding: 0.85rem 1.5rem;
}

.btn-xl {
  padding: 1rem 1.75rem;
  font-size: 1rem;
}

.btn-header {
  flex-shrink: 0;
}

/* Hero */
.hero {
  padding: 4rem 1.5rem 5rem;
  background:
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(187, 10, 48, 0.12), transparent 55%),
    linear-gradient(180deg, #0f0f0f 0%, var(--audi-black) 45%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.hero-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 900px) {
  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

.eyebrow {
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--audi-silver);
  margin: 0 0 1rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 400;
  line-height: 1.15;
  margin: 0 0 1.25rem;
  color: var(--audi-white);
  letter-spacing: 0.02em;
}

.text-gradient {
  background: linear-gradient(90deg, var(--audi-chrome), var(--audi-silver));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  font-size: 1.125rem;
  max-width: 38rem;
  margin: 0 0 2rem;
  color: var(--audi-silver);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 220px;
  position: relative;
}

.hero-mark-wrap {
  width: 200px;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-mark {
  width: min(168px, 42vw);
  height: auto;
  opacity: 0.92;
  filter: drop-shadow(0 12px 28px rgba(0, 0, 0, 0.45));
  animation: hero-mark-pulse 5s ease-in-out infinite;
}

@keyframes hero-mark-pulse {
  0%,
  100% {
    opacity: 0.88;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.03);
  }
}

.hero-tag {
  margin-top: 1.5rem;
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(200, 204, 208, 0.55);
  text-align: center;
  max-width: 280px;
}

/* Sections */
.section {
  padding: 4rem 1.5rem;
}

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

.container {
  max-width: 1100px;
  margin: 0 auto;
}

.section-head {
  margin-bottom: 2.5rem;
  text-align: center;
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  font-weight: 400;
  color: var(--audi-white);
  margin: 0 0 1rem;
  letter-spacing: 0.03em;
}

.section-intro {
  max-width: 640px;
  margin: 0 auto;
  color: var(--audi-silver);
  font-size: 1rem;
}

.card-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

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

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

.card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(200, 204, 208, 0.1);
  border-radius: 4px;
  padding: 1.25rem 1.35rem;
  transition: border-color 0.2s, background 0.2s;
}

.card:hover {
  border-color: rgba(187, 10, 48, 0.35);
  background: rgba(255, 255, 255, 0.05);
}

.transmission-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.0625rem;
  font-family: var(--font-body);
  font-weight: 700;
  color: var(--audi-white);
}

.transmission-card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--audi-silver);
}

/* Models */
.models-wrap {
  border: 1px solid rgba(200, 204, 208, 0.12);
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.25);
  padding: 1.25rem 1.5rem;
  max-height: 520px;
  overflow-y: auto;
  scrollbar-color: var(--audi-red) var(--audi-graphite);
}

.models-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

@media (min-width: 640px) {
  .models-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

.models-list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.9375rem;
}

.model-name {
  font-weight: 700;
  color: var(--audi-white);
  font-family: var(--font-body);
}

.model-note {
  color: var(--audi-silver);
  font-size: 0.875rem;
  text-align: right;
}

/* CTA */
.section-cta {
  background:
    linear-gradient(135deg, rgba(187, 10, 48, 0.15) 0%, transparent 50%),
    var(--audi-black);
  border-top: 1px solid rgba(187, 10, 48, 0.25);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.cta-inner {
  text-align: center;
  max-width: 720px;
}

.cta-copy h2 {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.5vw, 1.85rem);
  color: var(--audi-white);
  margin: 0 0 1rem;
}

.cta-copy p {
  color: var(--audi-silver);
  margin: 0 0 1.5rem;
}

.cta-small {
  margin-top: 1rem !important;
  font-size: 0.8125rem;
  color: rgba(200, 204, 208, 0.55);
}

/* FAQ */
.faq-list {
  margin: 0;
}

.faq-item {
  padding: 1.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.faq-item:first-child {
  padding-top: 0;
}

.faq-item dt {
  font-weight: 700;
  color: var(--audi-white);
  font-size: 1.0625rem;
  margin-bottom: 0.5rem;
}

.faq-item dd {
  margin: 0;
  color: var(--audi-silver);
}

/* Footer */
.site-footer {
  padding: 2.5rem 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: #050505;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2rem;
  align-items: flex-start;
}

.footer-logo {
  display: block;
  margin-bottom: 0.75rem;
}

.footer-disclaimer {
  max-width: 420px;
  margin: 0;
  font-size: 0.8125rem;
  color: rgba(200, 204, 208, 0.55);
  line-height: 1.5;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-nav a {
  text-decoration: none;
  font-size: 0.9375rem;
}

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

/* Logo in header/footer */
.brand-with-logo {
  flex-shrink: 0;
}

.brand-logo-img {
  height: auto;
  max-width: min(240px, 58vw);
  width: auto;
  display: block;
}

.footer-logo-img {
  height: auto;
  max-width: 200px;
  margin-bottom: 0.75rem;
}

.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;
}

/* Mobile navigation */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 48px;
  height: 48px;
  padding: 0;
  margin: 0;
  background: transparent;
  border: 1px solid rgba(200, 204, 208, 0.25);
  border-radius: 4px;
  cursor: pointer;
  z-index: 120;
  flex-shrink: 0;
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  margin: 0 auto;
  background: var(--audi-chrome);
  border-radius: 1px;
  transition: transform 0.2s var(--ease-out), opacity 0.2s;
}

.nav-open .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-open .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-open .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
  }

  .header-inner {
    display: grid;
    grid-template-columns: 1fr auto auto;
    grid-template-areas: "brand toggle cta";
    align-items: center;
    padding: 0.75rem 1rem;
    gap: 0.5rem 0.75rem;
  }

  .brand-with-logo {
    grid-area: brand;
  }

  .nav-toggle {
    grid-area: toggle;
  }

  .nav-cta {
    grid-area: cta;
    padding: 0.55rem 0.85rem;
    font-size: 0.8125rem;
  }

  .nav-main {
    display: flex;
    flex-direction: column;
    gap: 0;
    grid-column: 1 / -1;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.35s var(--ease-out), opacity 0.25s;
    border-top: 1px solid transparent;
  }

  .nav-open .nav-main {
    max-height: 100vh;
    opacity: 1;
    padding: 0.75rem 0 1rem;
    border-top-color: rgba(200, 204, 208, 0.12);
  }

  .nav-main a {
    padding: 1rem 0.25rem;
    min-height: 48px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    font-size: 1.0625rem;
  }

  .nav-main a.is-active {
    color: var(--audi-white);
    border-left: 3px solid var(--audi-red);
    padding-left: 0.75rem;
  }

  .hero {
    padding: 2.5rem 1rem 3rem;
  }

  .section {
    padding: 2.75rem 1rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
    min-height: 48px;
  }

  .models-wrap {
    max-height: none;
  }

  .models-list li {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }

  .model-note {
    text-align: left;
  }
}

body.nav-lock {
  overflow: hidden;
  touch-action: none;
}

@media (min-width: 901px) {
  .nav-main a.is-active {
    color: var(--audi-white);
    box-shadow: inset 0 -2px 0 var(--audi-red);
    text-decoration: none;
  }
}

/* Blog teaser (homepage) */
.blog-teaser-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .blog-teaser-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

a.blog-teaser-card {
  display: block;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(200, 204, 208, 0.1);
  border-radius: 4px;
  padding: 1.25rem;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s, background 0.2s;
  min-height: 44px;
}

a.blog-teaser-card:hover {
  border-color: rgba(187, 10, 48, 0.35);
  background: rgba(255, 255, 255, 0.05);
}

.blog-teaser-title {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--audi-white);
}

a.blog-teaser-card:hover .blog-teaser-title {
  color: var(--audi-chrome);
}

.blog-teaser-card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--audi-silver);
}

.blog-teaser-cta-wrap {
  text-align: center;
  margin-top: 2rem;
}

/* Blog index */
.blog-index-main {
  padding-bottom: 3rem;
}

.blog-hero {
  padding: 2.5rem 1rem 2rem;
  text-align: center;
}

.blog-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2rem);
  color: var(--audi-white);
  margin: 0 0 1rem;
}

.blog-hero-intro {
  max-width: 42rem;
  margin: 0 auto;
  color: var(--audi-silver);
}

.blog-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

@media (min-width: 560px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

.blog-card {
  margin: 0;
}

.blog-card-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 1.25rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(200, 204, 208, 0.1);
  border-radius: 4px;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s, background 0.2s;
  min-height: 44px;
}

.blog-card-link:hover {
  border-color: rgba(187, 10, 48, 0.4);
  background: rgba(255, 255, 255, 0.05);
}

.blog-card-date {
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(200, 204, 208, 0.65);
  margin-bottom: 0.5rem;
}

.blog-card-title {
  font-size: 1.0625rem;
  font-family: var(--font-body);
  font-weight: 700;
  color: var(--audi-white);
  margin: 0 0 0.6rem;
  line-height: 1.35;
}

.blog-card-excerpt {
  flex-grow: 1;
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  color: var(--audi-silver);
  line-height: 1.5;
}

.blog-card-cta {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--audi-red);
}

/* Article pages */
.article-page {
  padding-top: 1.5rem;
  padding-bottom: 3rem;
}

.breadcrumbs {
  font-size: 0.875rem;
  color: var(--audi-silver);
  margin-bottom: 1.5rem;
}

.breadcrumbs a {
  text-decoration: none;
}

.breadcrumbs a:hover {
  text-decoration: underline;
}

.article-header {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.article-header h1 {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3.5vw, 2rem);
  font-weight: 400;
  line-height: 1.2;
  color: var(--audi-white);
  margin: 0 0 0.75rem;
}

.article-meta {
  font-size: 0.9rem;
  color: rgba(200, 204, 208, 0.75);
  margin: 0 0 1rem;
}

.article-deck {
  font-size: 1.1rem;
  color: var(--audi-silver);
  margin: 0;
  line-height: 1.55;
}

.article-body {
  max-width: 46rem;
}

.article-body h2 {
  font-family: var(--font-body);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--audi-white);
  margin: 2rem 0 0.75rem;
}

.article-body p {
  margin: 0 0 1rem;
  color: var(--audi-chrome);
}

.article-lead {
  font-size: 1.125rem;
  color: var(--audi-silver);
}

.article-body ul {
  margin: 0 0 1.25rem;
  padding-left: 1.25rem;
  color: var(--audi-chrome);
}

.article-body a {
  color: var(--audi-silver);
}

.article-body a:hover {
  color: var(--audi-white);
}

.related-posts {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  max-width: 46rem;
}

.related-posts h2 {
  font-family: var(--font-display);
  font-size: 1.125rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--audi-silver);
  margin: 0 0 1rem;
  font-weight: 400;
}

.related-posts-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.related-posts-list li {
  margin: 0 0 0.65rem;
}

.related-posts-list a {
  font-weight: 600;
  font-size: 1rem;
  color: var(--audi-chrome);
  text-decoration: none;
  border-bottom: 1px solid rgba(187, 10, 48, 0.35);
  transition: color 0.15s, border-color 0.15s;
}

.related-posts-list a:hover {
  color: var(--audi-white);
  border-bottom-color: var(--audi-red);
}

.footer-legal-note {
  max-width: 520px;
  margin: 0.75rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: rgba(200, 204, 208, 0.5);
}

.legal-main {
  padding-top: 2rem;
  padding-bottom: 3rem;
}

.legal-article {
  max-width: 42rem;
}

.legal-article h1 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--audi-white);
  margin: 0 0 1rem;
}

.legal-article h2 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--audi-white);
  margin: 2rem 0 0.75rem;
}

.legal-article p,
.legal-article li {
  color: var(--audi-chrome);
  margin: 0 0 1rem;
  line-height: 1.65;
}

.legal-lead {
  font-size: 1rem;
  color: var(--audi-silver);
}

@media (max-width: 900px) {
  .article-page.container {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}

/* Safe areas (notch devices) */
@supports (padding: max(0px)) {
  .site-header .header-inner {
    padding-left: max(1rem, env(safe-area-inset-left));
    padding-right: max(1rem, env(safe-area-inset-right));
  }

  .hero,
  .section,
  .blog-hero,
  .article-page {
    padding-left: max(1rem, env(safe-area-inset-left));
    padding-right: max(1rem, env(safe-area-inset-right));
  }
}