/* ===========================================
   Custom Properties
   =========================================== */
:root {
  --red:   #e8001a;
  --dark:  #3a3a3a;
  --mid:   #474747;
  --light: #f0f0f2;
  --td:    #ececec;
  --tl:    #1a1a1a;

  --border-d: rgba(255,255,255,0.08);
  --border-l: rgba(0,0,0,0.10);

  --font:     Arial, Helvetica, sans-serif;
  --kern:     -0.02em;
  --radius:   4px;
  --header-h: 60px;
  --ease:     180ms ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  background: var(--dark);
  color: var(--td);
  -webkit-font-smoothing: antialiased;
}

a      { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: var(--font); background: none; border: none; }
img    { max-width: 100%; display: block; }

/* ===========================================
   Utility
   =========================================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.btn {
  display: inline-block;
  padding: 11px 26px;
  font-size: 14px;
  font-weight: bold;
  letter-spacing: var(--kern);
  border-radius: var(--radius);
  border: 2px solid transparent;
  transition: background var(--ease), border-color var(--ease), color var(--ease);
  white-space: nowrap;
}
.btn-primary  { background: var(--red);  border-color: var(--red);  color: #fff; }
.btn-primary:hover { background: #c5001a; border-color: #c5001a; }

.btn-outline  { background: transparent; border-color: rgba(255,255,255,0.35); color: #fff; }
.btn-outline:hover { border-color: #fff; background: rgba(255,255,255,0.07); }

/* ===========================================
   Logo
   =========================================== */
.logo-af { letter-spacing: var(--kern); color: #fff; }
.logo-w  { letter-spacing: var(--kern); color: var(--red); }

/* ===========================================
   Header
   =========================================== */
#site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(58,58,58,0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-d);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo {
  font-size: 19px;
  font-weight: bold;
  flex-shrink: 0;
  white-space: nowrap;
}

#main-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
}

.nav-link {
  padding: 7px 13px;
  font-size: 13px;
  font-weight: bold;
  letter-spacing: var(--kern);
  color: var(--td);
  border-radius: var(--radius);
  transition: color var(--ease), background var(--ease);
}
.nav-link:hover,
.nav-link.active { color: #fff; background: rgba(255,255,255,0.1); }

.lang-selector {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: 12px;
  flex-shrink: 0;
}
.lang-btn {
  padding: 5px 9px;
  font-size: 11px;
  font-weight: bold;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.4);
  border-radius: var(--radius);
  transition: color var(--ease), background var(--ease);
}
.lang-btn:hover  { color: #fff; background: rgba(255,255,255,0.07); }
.lang-btn.active { color: var(--red); background: rgba(232,0,26,0.1); }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 34px;
  height: 34px;
  padding: 6px;
  border-radius: var(--radius);
  flex-shrink: 0;
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--td);
  border-radius: 1px;
  transition: all var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===========================================
   Hero  (index.html)
   =========================================== */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  background: var(--dark);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(232,0,26,0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232,0,26,0.055) 1px, transparent 1px);
  background-size: 52px 52px;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 75% at 50% 45%, transparent 35%, var(--dark) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding-top: 72px;
  padding-bottom: 72px;
}

.hero-headline {
  font-size: clamp(38px, 6.5vw, 76px);
  font-weight: bold;
  letter-spacing: var(--kern);
  line-height: 1.08;
  color: #fff;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: clamp(16px, 2vw, 19px);
  color: var(--td);
  max-width: 560px;
  margin-bottom: 40px;
  line-height: 1.65;
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ===========================================
   Page Header  (inner pages)
   =========================================== */
.page-header {
  background: var(--mid);
  border-bottom: 1px solid var(--border-d);
  padding: 60px 0 52px;
}
.page-header .section-label {
  display: inline-block;
  font-size: 11px;
  font-weight: bold;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 10px;
}
.page-header h1 {
  font-size: clamp(30px, 4vw, 48px);
  font-weight: bold;
  letter-spacing: var(--kern);
  color: #fff;
  line-height: 1.12;
}
.page-header p {
  margin-top: 14px;
  font-size: 17px;
  color: var(--td);
  max-width: 560px;
  line-height: 1.65;
}

/* ===========================================
   Stats Band
   =========================================== */
.stats-band {
  background: var(--mid);
  border-top: 1px solid var(--border-d);
  border-bottom: 1px solid var(--border-d);
  padding: 52px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item { display: flex; flex-direction: column; align-items: center; gap: 8px; }

.stat-number {
  font-size: clamp(38px, 4.5vw, 56px);
  font-weight: bold;
  letter-spacing: var(--kern);
  color: var(--red);
  line-height: 1;
}

.stat-label {
  font-size: 12px;
  font-weight: bold;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
}

/* ===========================================
   Section Header (shared across pages)
   =========================================== */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-label {
  display: inline-block;
  font-size: 11px;
  font-weight: bold;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(26px, 3.5vw, 40px);
  font-weight: bold;
  letter-spacing: var(--kern);
  line-height: 1.15;
  color: #fff;
}

.section-desc {
  margin-top: 14px;
  font-size: 16px;
  max-width: 580px;
  margin-left: auto;
  margin-right: auto;
  color: var(--td);
  line-height: 1.65;
}

/* ===========================================
   Content Sections  (page padding)
   =========================================== */
.content-section {
  padding: 88px 0;
  background: var(--dark);
}
.content-section.alt {
  background: var(--mid);
}

/* ===========================================
   Services Grid  (2 × 2)
   =========================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
  margin-bottom: 48px;
}

.service-card {
  background: var(--mid);
  border: 1px solid var(--border-d);
  border-radius: var(--radius);
  padding: 36px 32px;
  transition: border-color var(--ease), transform var(--ease);
}
.content-section.alt .service-card { background: var(--dark); }

.service-card:hover {
  border-color: var(--red);
  transform: translateY(-4px);
}

.service-icon {
  width: 44px;
  height: 44px;
  color: var(--red);
  margin-bottom: 20px;
}
.service-icon svg { width: 100%; height: 100%; }

.service-card h3 {
  font-size: 18px;
  font-weight: bold;
  letter-spacing: var(--kern);
  color: #fff;
  margin-bottom: 10px;
}
.service-card p {
  font-size: 14px;
  color: var(--td);
  line-height: 1.7;
}
.service-card .service-tags {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.service-tag {
  padding: 3px 9px;
  font-size: 11px;
  font-weight: bold;
  letter-spacing: 0.04em;
  background: rgba(232,0,26,0.1);
  border: 1px solid rgba(232,0,26,0.25);
  border-radius: 2px;
  color: #ff6677;
}

.section-cta { text-align: center; }

/* ===========================================
   Preview Grid  (index.html — 4 mini cards)
   =========================================== */
.preview-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}

.preview-card {
  background: var(--mid);
  border: 1px solid var(--border-d);
  border-radius: var(--radius);
  padding: 24px 22px;
  transition: border-color var(--ease), transform var(--ease);
  text-decoration: none;
  display: block;
}
.preview-card:hover { border-color: var(--red); transform: translateY(-3px); }

.preview-card .service-icon { width: 36px; height: 36px; margin-bottom: 14px; }

.preview-card h3 {
  font-size: 15px;
  font-weight: bold;
  letter-spacing: var(--kern);
  color: #fff;
  margin-bottom: 8px;
}
.preview-card p { font-size: 13px; color: var(--td); line-height: 1.6; }

/* ===========================================
   About
   =========================================== */
.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start;
}

.about-text h2 {
  font-size: clamp(26px, 3.5vw, 40px);
  font-weight: bold;
  letter-spacing: var(--kern);
  color: #fff;
  margin-bottom: 24px;
  line-height: 1.2;
}
.about-text p {
  font-size: 15px;
  color: var(--td);
  line-height: 1.8;
  margin-bottom: 16px;
}
.about-text p:last-child { margin-bottom: 0; }

.about-values-title {
  font-size: 12px;
  font-weight: bold;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 18px;
}

.about-values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.value-item {
  padding: 16px 18px;
  border-left: 3px solid var(--red);
  background: rgba(232,0,26,0.05);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.value-item strong {
  display: block;
  font-size: 14px;
  font-weight: bold;
  letter-spacing: var(--kern);
  color: #fff;
  margin-bottom: 3px;
}
.value-item span { font-size: 13px; color: var(--td); }

/* ===========================================
   Contact Form
   =========================================== */
.contact-form {
  max-width: 640px;
  margin: 0 auto;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 18px;
}
.form-group label {
  font-size: 12px;
  font-weight: bold;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
}
.form-group input,
.form-group select,
.form-group textarea {
  padding: 11px 14px;
  font-family: var(--font);
  font-size: 15px;
  background: var(--mid);
  border: 1px solid var(--border-d);
  border-radius: var(--radius);
  color: var(--td);
  outline: none;
  transition: border-color var(--ease);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--red); }
.form-group textarea { resize: vertical; min-height: 130px; }
.form-group select option { background: var(--mid); }

.form-footer { margin-top: 6px; }

.form-msg {
  margin-top: 14px;
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  display: none;
}
.form-msg.success {
  display: block;
  background: rgba(50,205,50,0.1);
  border: 1px solid rgba(50,205,50,0.25);
  color: #6bcf6b;
}
.form-msg.error {
  display: block;
  background: rgba(232,0,26,0.1);
  border: 1px solid rgba(232,0,26,0.3);
  color: #ff4455;
}

/* ===========================================
   Impressum
   =========================================== */
.impressum-body { max-width: 720px; }

.impressum-body h3 {
  font-size: 14px;
  font-weight: bold;
  letter-spacing: 0.04em;
  color: var(--red);
  margin: 28px 0 6px;
  text-transform: uppercase;
}
.impressum-body h3:first-child { margin-top: 0; }

.impressum-body p,
.impressum-body address {
  font-size: 15px;
  font-style: normal;
  color: var(--td);
  line-height: 1.75;
}
.impressum-body a { color: var(--red); text-decoration: underline; text-underline-offset: 2px; }
.impressum-body a:hover { color: #fff; }

/* ===========================================
   Kundenbereich
   =========================================== */
.kunden-card {
  max-width: 420px;
  margin: 0 auto;
  background: var(--mid);
  border: 1px solid var(--border-d);
  border-radius: var(--radius);
  padding: 44px 40px;
  text-align: center;
}
.kunden-card .section-label { display: block; margin-bottom: 6px; }
.kunden-card h2 {
  font-size: 22px;
  font-weight: bold;
  letter-spacing: var(--kern);
  color: #fff;
  margin-bottom: 8px;
}
.kunden-desc {
  font-size: 14px;
  color: var(--td);
  margin-bottom: 28px;
}
.kunden-card .form-group { text-align: left; margin-bottom: 14px; }
.kunden-card input {
  width: 100%;
  padding: 11px 14px;
  font-family: var(--font);
  font-size: 15px;
  background: var(--dark);
  border: 1px solid var(--border-d);
  border-radius: var(--radius);
  color: var(--td);
  outline: none;
  transition: border-color var(--ease);
}
.kunden-card input:focus { border-color: var(--red); }
.kunden-card label {
  display: block;
  font-size: 12px;
  font-weight: bold;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  margin-bottom: 6px;
}
.kunden-card .btn { width: 100%; margin-top: 6px; }
.kunden-note {
  margin-top: 18px;
  font-size: 12px;
  color: rgba(255,255,255,0.35);
  line-height: 1.6;
}
.kunden-note a { color: var(--red); text-decoration: underline; text-underline-offset: 2px; }

/* ===========================================
   Cookie Banner
   =========================================== */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: var(--mid);
  border-top: 1px solid var(--border-d);
  padding: 18px 24px;
  box-shadow: 0 -6px 32px rgba(0,0,0,0.4);
}
.cookie-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}
.cookie-text { flex: 1; min-width: 260px; }
.cookie-text strong { display: block; color: #fff; font-size: 15px; margin-bottom: 4px; }
.cookie-text p { font-size: 13px; color: rgba(255,255,255,0.55); line-height: 1.5; }
.cookie-actions { display: flex; gap: 10px; flex-shrink: 0; }

/* ===========================================
   Footer
   =========================================== */
#site-footer {
  background: var(--dark);
  border-top: 1px solid var(--border-d);
  padding: 44px 0;
}
.footer-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
}
.footer-brand .logo-af,
.footer-brand .logo-w { font-size: 17px; font-weight: bold; }
.footer-tagline {
  font-size: 12px;
  color: rgba(255,255,255,0.3);
  margin-top: 4px;
}
.footer-nav {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-nav a {
  font-size: 13px;
  font-weight: bold;
  color: rgba(255,255,255,0.4);
  letter-spacing: var(--kern);
  transition: color var(--ease);
}
.footer-nav a:hover { color: #fff; }
.footer-copy {
  font-size: 12px;
  color: rgba(255,255,255,0.3);
  text-align: right;
}

/* ===========================================
   Scroll Fade-In
   =========================================== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-in.visible { opacity: 1; transform: none; }

/* ===========================================
   Responsive — 768px
   =========================================== */
@media (max-width: 768px) {
  /* Nav */
  #main-nav {
    display: none;
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(58,58,58,0.98);
    border-bottom: 1px solid var(--border-d);
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    gap: 2px;
    z-index: 99;
  }
  #main-nav.open { display: flex; }
  .nav-toggle    { display: flex; }
  .lang-selector { margin-left: 0; }

  /* Stats */
  .stats-grid { grid-template-columns: repeat(2, 1fr); }

  /* Services */
  .services-grid { grid-template-columns: 1fr; }
  .preview-grid  { grid-template-columns: repeat(2, 1fr); }

  /* About */
  .about-inner  { grid-template-columns: 1fr; gap: 40px; }
  .about-values { grid-template-columns: 1fr; }

  /* Form */
  .form-row { grid-template-columns: 1fr; }

  /* Footer */
  .footer-inner { grid-template-columns: 1fr; text-align: center; }
  .footer-copy  { text-align: center; }

  /* Cookie */
  .cookie-inner   { flex-direction: column; gap: 14px; }
  .cookie-actions { width: 100%; justify-content: center; }

  /* Sections */
  .content-section { padding: 60px 0; }
  .page-header     { padding: 44px 0 36px; }

  /* Hero */
  .hero-actions { flex-direction: column; align-items: flex-start; }
}