/* ============================================================
   Onsider — Trocknungsgeräte Verleih
   style.css
   ============================================================ */

/* ===== CSS Custom Properties ===== */
:root {
  --blue-dark:   #1a4f8a;
  --blue-mid:    #2264c0;
  --blue-light:  #dbeafe;
  --accent:      #2d7dd2;
  --grey-900:    #111827;
  --grey-700:    #374151;
  --grey-500:    #6b7280;
  --grey-300:    #d1d5db;
  --grey-100:    #f3f4f6;
  --white:       #ffffff;
  --shadow-sm:   0 1px 3px rgba(0,0,0,.08);
  --shadow-md:   0 4px 12px rgba(0,0,0,.10);
  --shadow-lg:   0 8px 28px rgba(0,0,0,.13);
  --radius:      8px;
  --radius-lg:   14px;
  --transition:  .2s ease;
  --max-w:       1100px;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--grey-700);
  background: var(--white);
  line-height: 1.6;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ===== Typography ===== */
h1, h2, h3, h4 { color: var(--grey-900); line-height: 1.2; }
h1 { font-size: clamp(2rem, 5vw, 3rem); font-weight: 800; }
h2 { font-size: clamp(1.45rem, 3vw, 2.1rem); font-weight: 700; }
h3 { font-size: 1.1rem; font-weight: 600; }
p  { line-height: 1.75; }

/* ===== Layout Utilities ===== */
.container {
  width: 90%;
  max-width: var(--max-w);
  margin: 0 auto;
}
section { padding: 80px 0; }

.section-label {
  display: inline-block;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}
.section-heading { margin-bottom: 14px; }
.section-sub {
  color: var(--grey-500);
  max-width: 520px;
  margin-bottom: 48px;
  font-size: .96rem;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .93rem;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--blue-dark);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--blue-mid);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn-outline {
  border: 2px solid rgba(255,255,255,.65);
  color: var(--white);
}
.btn-outline:hover {
  border-color: var(--white);
  background: rgba(255,255,255,.12);
}
.btn-ghost {
  border: 1.5px solid var(--grey-300);
  color: var(--grey-700);
}
.btn-ghost:hover {
  border-color: var(--blue-dark);
  color: var(--blue-dark);
}

/* ===== Navbar ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--grey-300);
  padding: 14px 0;
  transition: box-shadow var(--transition);
}
.navbar.scrolled { box-shadow: var(--shadow-md); }
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--blue-dark);
  letter-spacing: -.04em;
  flex-shrink: 0;
}
.logo span { color: var(--accent); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  font-size: .88rem;
  font-weight: 500;
  color: var(--grey-700);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--blue-dark); }
.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}
.lang-btn {
  padding: 5px 14px;
  border: 1.5px solid var(--grey-300);
  border-radius: 20px;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--grey-600);
  transition: all var(--transition);
}
.lang-btn:hover {
  border-color: var(--blue-dark);
  color: var(--blue-dark);
}
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--grey-700);
  border-radius: 2px;
  transition: all var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; width: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Mobile Navigation ===== */
.mobile-nav {
  display: none;
  background: var(--white);
  border-bottom: 1px solid var(--grey-300);
  padding: 8px 0 16px;
}
.mobile-nav.open { display: block; }
.mobile-nav a {
  display: block;
  padding: 11px 24px;
  font-size: .95rem;
  font-weight: 500;
  color: var(--grey-700);
  transition: background var(--transition), color var(--transition);
}
.mobile-nav a:hover { background: var(--grey-100); color: var(--blue-dark); }
.mobile-nav .mobile-lang-wrap {
  padding: 8px 24px 0;
}
.mobile-nav .lang-btn {
  display: inline-flex;
}

/* ===== Hero ===== */
.hero {
  background: linear-gradient(140deg, #1a4f8a 0%, #163e70 55%, #0f2a4e 100%);
  color: var(--white);
  padding: 96px 0 84px;
  overflow: hidden;
  position: relative;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--white);
  clip-path: ellipse(56% 100% at 50% 100%);
}
.hero-bg-pattern {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 80%, rgba(45,125,210,.18) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255,255,255,.05) 0%, transparent 40%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.22);
  color: rgba(255,255,255,.9);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 22px;
}
.hero-badge svg { opacity: .7; }
.hero h1 {
  color: var(--white);
  max-width: 680px;
  margin-bottom: 18px;
}
.hero h1 .highlight { color: #7eb8f7; }
.hero-sub {
  color: rgba(255,255,255,.78);
  font-size: 1.06rem;
  max-width: 500px;
  margin-bottom: 36px;
}
.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}
.hero-facts {
  display: flex;
  gap: 44px;
  flex-wrap: wrap;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,.15);
}
.hero-fact strong {
  display: block;
  font-size: 1.7rem;
  font-weight: 800;
  color: #7eb8f7;
  line-height: 1;
  margin-bottom: 4px;
}
.hero-fact span {
  font-size: .82rem;
  color: rgba(255,255,255,.65);
}

/* ===== Services Section ===== */
.services { background: var(--grey-100); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid transparent;
  transition: all var(--transition);
}
.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--blue-light);
}
.service-icon {
  width: 52px;
  height: 52px;
  background: var(--blue-light);
  color: var(--blue-dark);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.service-card h3 { margin-bottom: 10px; }
.service-card p { color: var(--grey-500); font-size: .9rem; line-height: 1.65; }

/* ===== How It Works ===== */
.how-it-works { background: var(--white); }
.steps-wrapper {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  position: relative;
}
.steps-wrapper::before {
  content: '';
  position: absolute;
  top: 28px;
  left: calc(16.67% + 28px);
  right: calc(16.67% + 28px);
  height: 2px;
  background: var(--blue-light);
  z-index: 0;
}
.step {
  text-align: center;
  padding: 0 20px;
}
.step-number {
  width: 56px;
  height: 56px;
  background: var(--blue-dark);
  color: var(--white);
  border-radius: 50%;
  font-size: 1.15rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 22px;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 6px var(--white), 0 0 0 7px var(--blue-light);
}
.step h3 { margin-bottom: 8px; }
.step p { color: var(--grey-500); font-size: .88rem; line-height: 1.65; }

/* ===== Contact Section ===== */
.contact { background: var(--grey-100); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 56px;
  align-items: start;
}
.contact-info h2 { margin-bottom: 14px; }
.contact-info > p { color: var(--grey-500); margin-bottom: 36px; font-size: .95rem; }
.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 22px;
}
.contact-icon {
  width: 42px;
  height: 42px;
  background: var(--blue-light);
  color: var(--blue-dark);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-detail-text strong {
  display: block;
  font-size: .78rem;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--grey-500);
  font-weight: 600;
  margin-bottom: 2px;
}
.contact-detail-text span,
.contact-detail-text a {
  font-size: .93rem;
  font-weight: 500;
  color: var(--grey-700);
  transition: color var(--transition);
}
.contact-detail-text a:hover { color: var(--blue-dark); }

/* ===== Contact Form ===== */
.form-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  box-shadow: var(--shadow-md);
}
.form-card h3 { margin-bottom: 24px; font-size: 1.15rem; }
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: .82rem;
  font-weight: 600;
  color: var(--grey-700);
  margin-bottom: 5px;
  letter-spacing: .02em;
}
.form-group label .req { color: var(--accent); margin-left: 2px; }
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 13px;
  border: 1.5px solid var(--grey-300);
  border-radius: var(--radius);
  font: inherit;
  font-size: .9rem;
  color: var(--grey-900);
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--blue-dark);
  box-shadow: 0 0 0 3px rgba(26,79,138,.1);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-select-wrap { position: relative; }
.form-select-wrap::after {
  content: '';
  position: absolute;
  right: 13px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid var(--grey-500);
  pointer-events: none;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 20px;
  font-size: .82rem;
  color: var(--grey-500);
}
.form-consent input[type="checkbox"] {
  width: 16px;
  height: 16px;
  min-width: 16px;
  margin-top: 2px;
  cursor: pointer;
  accent-color: var(--blue-dark);
}
.form-consent a { color: var(--blue-dark); }
.form-consent a:hover { text-decoration: underline; }
.btn-submit {
  width: 100%;
  justify-content: center;
  padding: 13px;
  font-size: .96rem;
}
.btn-submit:disabled { opacity: .6; cursor: not-allowed; }
.form-note {
  font-size: .76rem;
  color: var(--grey-500);
  text-align: center;
  margin-top: 10px;
}
.form-note a { color: var(--blue-dark); }
.form-note a:hover { text-decoration: underline; }
.form-success {
  display: none;
  background: #d1fae5;
  border: 1px solid #6ee7b7;
  color: #065f46;
  border-radius: var(--radius);
  padding: 16px 20px;
  text-align: center;
  font-size: .9rem;
  font-weight: 600;
  margin-top: 16px;
}
.form-success.show { display: block; }
.form-error {
  display: none;
  background: #fee2e2;
  border: 1px solid #fca5a5;
  color: #991b1b;
  border-radius: var(--radius);
  padding: 14px 20px;
  text-align: center;
  font-size: .88rem;
  margin-top: 16px;
}
.form-error.show { display: block; }

/* ===== Footer ===== */
.footer {
  background: var(--grey-900);
  color: rgba(255,255,255,.65);
  padding: 56px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-logo {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -.04em;
  margin-bottom: 10px;
  display: block;
}
.footer-logo span { color: #7eb8f7; }
.footer-tagline {
  font-size: .86rem;
  line-height: 1.7;
  max-width: 300px;
}
.footer-col h4 {
  color: var(--white);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.footer-col a, .footer-col p {
  display: block;
  font-size: .86rem;
  padding: 3px 0;
  transition: color var(--transition);
  line-height: 1.7;
}
.footer-col a:hover { color: var(--white); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: .8rem;
}
.footer-bottom-links {
  display: flex;
  gap: 20px;
}
.footer-bottom-links a { transition: color var(--transition); }
.footer-bottom-links a:hover { color: var(--white); }

/* ===== Legal Pages (Impressum / Datenschutz) ===== */
.legal-header {
  background: linear-gradient(135deg, var(--blue-dark) 0%, #0f2a4e 100%);
  color: var(--white);
  padding: 56px 0 44px;
}
.legal-breadcrumb {
  font-size: .82rem;
  color: rgba(255,255,255,.5);
  margin-bottom: 14px;
}
.legal-breadcrumb a {
  color: rgba(255,255,255,.7);
  transition: color var(--transition);
}
.legal-breadcrumb a:hover { color: var(--white); }
.legal-breadcrumb span { margin: 0 6px; }
.legal-header h1 {
  color: var(--white);
  font-size: clamp(1.6rem, 4vw, 2.3rem);
  margin-bottom: 6px;
}
.legal-header p { color: rgba(255,255,255,.65); font-size: .9rem; }
.legal-body { padding: 60px 0 80px; }
.legal-content { max-width: 760px; }
.legal-content h2 {
  font-size: 1.2rem;
  color: var(--grey-900);
  margin: 40px 0 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--blue-light);
}
.legal-content h2:first-child { margin-top: 0; }
.legal-content h3 {
  font-size: .95rem;
  color: var(--grey-700);
  font-weight: 600;
  margin: 20px 0 6px;
}
.legal-content p {
  color: var(--grey-500);
  font-size: .91rem;
  margin-bottom: 12px;
}
.legal-content a { color: var(--blue-dark); }
.legal-content a:hover { text-decoration: underline; }
.legal-content ul {
  list-style: disc;
  padding-left: 22px;
  margin-bottom: 14px;
}
.legal-content ul li {
  color: var(--grey-500);
  font-size: .91rem;
  margin-bottom: 5px;
}
.info-block {
  background: var(--grey-100);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 18px 22px;
  margin-bottom: 16px;
}
.info-block p {
  margin-bottom: 4px;
  font-size: .9rem !important;
}
.info-block p:last-child { margin-bottom: 0; }
.info-block strong { color: var(--grey-700); }

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .services-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .steps-wrapper::before { display: none; }
  .steps-wrapper {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .step {
    text-align: left;
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 0;
  }
  .step-number {
    flex-shrink: 0;
    margin: 0;
  }
}

@media (max-width: 768px) {
  section { padding: 60px 0; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .services-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-bottom-links { justify-content: center; }
  .hero-facts { gap: 28px; }
  .form-card { padding: 28px 22px; }
}

@media (max-width: 480px) {
  .hero { padding: 72px 0 60px; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; justify-content: center; }
}