/* Diannbonusautomiete — Berlin Mobility Atelier */
@import url("https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Syne:wght@500;600;700;800&display=swap");

:root {
  --cool-white: #f6f7f8;
  --soft-concrete: #e6e8ea;
  --light-grey: #cfd3d7;
  --graphite: #3a3f45;
  --charcoal: #1a1d21;
  --deep-slate: #2a3036;
  --steel: #6a7179;
  --electric-blue: #1f6feb;
  --signal-orange: #c57a45;
  --aluminium: #a7adb4;
  --white: #ffffff;
  --header-h: 4.5rem;
  --radius: 2px;
  --shadow-soft: 0 18px 50px rgba(26, 29, 33, 0.08);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --max: 1180px;
}

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

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

body {
  margin: 0;
  font-family: "Outfit", sans-serif;
  font-weight: 400;
  color: var(--deep-slate);
  background: var(--cool-white);
  line-height: 1.65;
  overflow-x: hidden;
  word-break: break-word;
  overflow-wrap: anywhere;
  hyphens: auto;
}

html.menu-open,
body.menu-open {
  overflow: hidden;
  touch-action: none;
  overscroll-behavior: none;
}

body.menu-open {
  position: fixed;
  top: var(--scroll-lock-y, 0);
  left: 0;
  right: 0;
  width: 100%;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: "Syne", sans-serif;
  font-weight: 700;
  line-height: 1.15;
  color: var(--charcoal);
  margin: 0 0 0.75rem;
  word-break: break-word;
  overflow-wrap: anywhere;
  hyphens: auto;
}

p {
  margin: 0 0 1rem;
  word-break: break-word;
  overflow-wrap: anywhere;
  hyphens: auto;
}

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--steel);
  font-weight: 600;
  margin-bottom: 0.85rem;
}

.eyebrow-light {
  color: rgba(255, 255, 255, 0.75);
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(246, 247, 248, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(58, 63, 69, 0.08);
  transition: background 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 8px 30px rgba(26, 29, 33, 0.06);
}

.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.brand img {
  width: 42px;
  height: 42px;
  object-fit: contain;
  flex-shrink: 0;
}

.brand-text {
  font-family: "Syne", sans-serif;
  font-weight: 700;
  font-size: clamp(0.85rem, 2.5vw, 1rem);
  letter-spacing: -0.02em;
  color: var(--charcoal);
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: 1.5rem;
}

.nav-desktop a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--graphite);
  position: relative;
  padding: 0.25rem 0;
  transition: color 0.25s var(--ease);
}

.nav-desktop a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--electric-blue);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}

.nav-desktop a:hover,
.nav-desktop a[aria-current="page"] {
  color: var(--charcoal);
}

.nav-desktop a:hover::after,
.nav-desktop a[aria-current="page"]::after {
  transform: scaleX(1);
}

.menu-toggle {
  width: 44px;
  height: 44px;
  border: 1px solid var(--light-grey);
  background: var(--white);
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  padding: 0;
  border-radius: var(--radius);
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--charcoal);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-mobile {
  position: fixed;
  inset: var(--header-h) 0 0 0;
  background: var(--cool-white);
  padding: 1.5rem;
  transform: translateX(100%);
  transition: transform 0.4s var(--ease);
  z-index: 999;
  overflow-y: auto;
  visibility: hidden;
}

.nav-mobile.is-open {
  transform: translateX(0);
  visibility: visible;
}

.nav-mobile a {
  display: block;
  padding: 1rem 0;
  font-family: "Syne", sans-serif;
  font-size: 1.35rem;
  font-weight: 600;
  border-bottom: 1px solid var(--soft-concrete);
  color: var(--charcoal);
  min-height: 48px;
}

@media (min-width: 960px) {
  .nav-desktop {
    display: flex;
  }

  .menu-toggle {
    display: none;
  }

  .nav-mobile {
    display: none;
  }
}

/* Main */
main {
  padding-top: var(--header-h);
  min-height: 60vh;
}

/* Hero */
.hero {
  position: relative;
  min-height: min(88vh, 820px);
  display: grid;
  align-items: end;
  overflow: hidden;
  background: var(--charcoal);
}

.hero-media {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.04);
  transition: transform 8s var(--ease);
}

.hero:hover .hero-media img {
  transform: scale(1.08);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(26, 29, 33, 0.25) 0%, rgba(26, 29, 33, 0.72) 100%),
    linear-gradient(90deg, rgba(26, 29, 33, 0.55) 0%, transparent 55%);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 4rem 0 3.5rem;
  color: var(--white);
  max-width: 720px;
}

.hero-content h1 {
  color: var(--white);
  font-size: clamp(2.1rem, 6vw, 3.8rem);
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.hero-content p {
  font-size: clamp(1rem, 2.2vw, 1.15rem);
  color: rgba(255, 255, 255, 0.88);
  max-width: 36rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.75rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0.85rem 1.4rem;
  font-family: "Outfit", sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease);
  word-break: break-word;
  overflow-wrap: anywhere;
  hyphens: auto;
  text-align: center;
}

.btn-primary {
  background: var(--electric-blue);
  color: var(--white);
}

.btn-primary:hover {
  background: #1558c0;
}

.btn-primary:active {
  transform: translateY(1px);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.55);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--white);
}

.btn-dark {
  background: var(--charcoal);
  color: var(--white);
}

.btn-dark:hover {
  background: var(--deep-slate);
}

.btn-outline {
  background: transparent;
  color: var(--charcoal);
  border-color: var(--light-grey);
}

.btn-outline:hover {
  border-color: var(--electric-blue);
  color: var(--electric-blue);
}

.btn-success {
  background: #2f7d4a;
  color: var(--white);
}

/* Sections */
.section {
  padding: clamp(3.5rem, 8vw, 6rem) 0;
}

.section-muted {
  background: var(--soft-concrete);
}

.section-dark {
  background: var(--charcoal);
  color: rgba(255, 255, 255, 0.88);
}

.section-dark h2,
.section-dark h3 {
  color: var(--white);
}

.section-head {
  max-width: 640px;
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.section-head h2 {
  font-size: clamp(1.75rem, 4vw, 2.6rem);
  letter-spacing: -0.02em;
}

.section-head p {
  color: var(--steel);
  font-size: 1.05rem;
}

.section-dark .section-head p {
  color: rgba(255, 255, 255, 0.7);
}

/* Grid layouts */
.split {
  display: grid;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 860px) {
  .split {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 3.5rem;
  }

  .split.reverse .split-media {
    order: 2;
  }

  .split.reverse .split-copy {
    order: 1;
  }
}

.split-media {
  position: relative;
  overflow: hidden;
  background: var(--soft-concrete);
  min-height: 280px;
}

.split-media img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
  transition: transform 0.8s var(--ease);
}

.split:hover .split-media img {
  transform: scale(1.04);
}

.frame-label {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  background: rgba(26, 29, 33, 0.82);
  color: var(--white);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 0.45rem 0.7rem;
}

/* Cards */
.card-grid {
  display: grid;
  gap: 1.25rem;
}

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

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

.card {
  background: var(--white);
  border: 1px solid rgba(58, 63, 69, 0.08);
  overflow: hidden;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
  word-break: break-word;
  overflow-wrap: anywhere;
  hyphens: auto;
}

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

.card-media {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--soft-concrete);
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease);
}

.card:hover .card-media img {
  transform: scale(1.05);
}

.card-body {
  padding: 1.35rem 1.25rem 1.5rem;
}

.card-body .tag {
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--electric-blue);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.card-body h3 {
  font-size: 1.2rem;
  margin-bottom: 0.55rem;
}

.card-body p {
  color: var(--steel);
  font-size: 0.95rem;
}

.spec-list {
  display: grid;
  gap: 0.4rem;
  margin: 1rem 0 1.25rem;
  font-size: 0.88rem;
  color: var(--graphite);
}

.spec-list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--soft-concrete);
  padding-bottom: 0.35rem;
}

.spec-list span:first-child {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.72rem;
  color: var(--steel);
}

/* Feature strip */
.feature-strip {
  display: grid;
  gap: 1rem;
}

@media (min-width: 760px) {
  .feature-strip {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-item {
  padding: 1.5rem 1.25rem;
  border-top: 2px solid var(--charcoal);
  background: var(--white);
}

.feature-item h3 {
  font-size: 1.1rem;
}

.feature-item p {
  color: var(--steel);
  margin: 0;
  font-size: 0.95rem;
}

/* Spec panel */
.spec-panel {
  display: grid;
  gap: 1px;
  background: var(--light-grey);
  border: 1px solid var(--light-grey);
}

@media (min-width: 700px) {
  .spec-panel {
    grid-template-columns: repeat(4, 1fr);
  }
}

.spec-cell {
  background: var(--white);
  padding: 1.25rem;
}

.spec-cell strong {
  display: block;
  font-family: "Syne", sans-serif;
  font-size: 1.6rem;
  color: var(--charcoal);
  letter-spacing: -0.02em;
}

.spec-cell span {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--steel);
}

/* CTA band */
.cta-band {
  display: grid;
  gap: 1.5rem;
  align-items: center;
  padding: clamp(2rem, 5vw, 3rem);
  background:
    linear-gradient(135deg, rgba(26, 29, 33, 0.92), rgba(31, 111, 235, 0.55)),
    var(--charcoal);
  color: var(--white);
}

@media (min-width: 800px) {
  .cta-band {
    grid-template-columns: 1.4fr auto;
  }
}

.cta-band h2 {
  color: var(--white);
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  margin-bottom: 0.5rem;
}

.cta-band p {
  margin: 0;
  color: rgba(255, 255, 255, 0.8);
}

/* Page hero compact */
.page-hero {
  padding: clamp(3rem, 7vw, 5rem) 0 2.5rem;
  border-bottom: 1px solid var(--soft-concrete);
  background:
    linear-gradient(180deg, var(--white), var(--cool-white));
}

.page-hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  letter-spacing: -0.03em;
  max-width: 16ch;
}

.page-hero p {
  max-width: 42rem;
  color: var(--steel);
  font-size: 1.05rem;
}

.page-hero-media {
  margin-top: 2rem;
  overflow: hidden;
  max-height: 420px;
}

.page-hero-media img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}

/* Legal */
.legal-content {
  max-width: 760px;
}

.legal-content h2 {
  font-size: 1.35rem;
  margin-top: 2rem;
}

.legal-content h3 {
  font-size: 1.1rem;
  margin-top: 1.4rem;
}

.legal-content ul {
  margin: 0 0 1rem 1.1rem;
  list-style: disc;
}

.legal-content li {
  margin-bottom: 0.4rem;
  color: var(--graphite);
}

/* Contact */
.contact-layout {
  display: grid;
  gap: 2rem;
}

@media (min-width: 900px) {
  .contact-layout {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 3rem;
  }
}

.contact-info {
  display: grid;
  gap: 1.25rem;
}

.info-block {
  padding: 1.25rem;
  background: var(--white);
  border: 1px solid rgba(58, 63, 69, 0.08);
}

.info-block h2 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.info-block p {
  margin: 0;
  color: var(--graphite);
}

.contact-visual {
  margin-top: 1rem;
  overflow: hidden;
}

.contact-visual img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

/* Forms */
.form-card {
  background: var(--white);
  border: 1px solid rgba(58, 63, 69, 0.08);
  padding: clamp(1.25rem, 3vw, 2rem);
  word-break: break-word;
  overflow-wrap: anywhere;
  hyphens: auto;
}

.form-group {
  margin-bottom: 1.1rem;
}

.form-group label {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--graphite);
  margin-bottom: 0.45rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  min-height: 48px;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--light-grey);
  background: var(--cool-white);
  color: var(--charcoal);
  font: inherit;
  border-radius: var(--radius);
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--electric-blue);
  box-shadow: 0 0 0 3px rgba(31, 111, 235, 0.15);
}

.form-group.is-invalid input,
.form-group.is-invalid select,
.form-group.is-invalid textarea {
  border-color: #b42318;
}

.form-group.is-valid input,
.form-group.is-valid select,
.form-group.is-valid textarea {
  border-color: #2f7d4a;
}

.field-error {
  display: none;
  margin-top: 0.35rem;
  font-size: 0.85rem;
  color: #b42318;
}

.form-group.is-invalid .field-error {
  display: block;
}

.form-actions {
  margin-top: 1.25rem;
}

.form-actions .btn {
  width: 100%;
}

@media (min-width: 560px) {
  .form-actions .btn {
    width: auto;
    min-width: 220px;
  }
}

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(26, 29, 33, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s var(--ease), visibility 0.3s var(--ease);
}

.modal-backdrop.is-open {
  opacity: 1;
  visibility: visible;
}

.modal {
  width: min(100%, 440px);
  background: var(--white);
  padding: 1.75rem 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  position: relative;
  transform: translateY(12px);
  transition: transform 0.35s var(--ease);
  word-break: break-word;
  overflow-wrap: anywhere;
  hyphens: auto;
  max-height: calc(100vh - 2rem);
  overflow-y: auto;
}

.modal-backdrop.is-open .modal {
  transform: translateY(0);
}

.modal h2 {
  font-size: 1.35rem;
  padding-right: 2rem;
}

.modal p {
  color: var(--steel);
}

.modal-close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  width: 44px;
  height: 44px;
  border: none;
  background: var(--soft-concrete);
  cursor: pointer;
  font-size: 1.4rem;
  line-height: 1;
  color: var(--charcoal);
  border-radius: var(--radius);
}

.modal-close:hover {
  background: var(--light-grey);
}

/* Footer */
.site-footer {
  background: var(--charcoal);
  color: rgba(255, 255, 255, 0.82);
  padding: 3.5rem 0 2rem;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 760px) {
  .footer-grid {
    grid-template-columns: 1.3fr 1fr 1fr;
  }
}

.footer-brand {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  margin-bottom: 1rem;
}

.footer-brand img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.footer-brand strong {
  display: block;
  font-family: "Syne", sans-serif;
  color: var(--white);
  font-size: 1.05rem;
}

.footer-meta p {
  margin: 0 0 0.4rem;
  font-size: 0.95rem;
}

.footer-title {
  font-family: "Syne", sans-serif;
  color: var(--white);
  font-size: 0.95rem;
  margin-bottom: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.footer-links {
  display: grid;
  gap: 0.55rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.75);
  transition: color 0.25s var(--ease);
  word-break: break-word;
  overflow-wrap: anywhere;
}

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

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

.social-links a {
  color: rgba(255, 255, 255, 0.8);
  font-weight: 500;
  border-bottom: 1px solid transparent;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.social-links a:hover {
  color: var(--white);
  border-color: var(--aluminium);
}

.footer-bottom {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.55);
}

/* Reveal animations */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .hero-media img,
  .split-media img,
  .card-media img {
    transform: none !important;
  }
}

/* Utility */
.text-accent {
  color: var(--electric-blue);
}

.mt-2 {
  margin-top: 2rem;
}

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