/* ============================================================
   style.css – Das perfekte Raumklima
   Design-System v1.0
   ============================================================ */

/* ------------------------------------------------------------
   1. CSS CUSTOM PROPERTIES
   ------------------------------------------------------------ */
:root {
  /* Farben */
  --color-primary:      #1F4E79;   /* Dunkelblau */
  --color-accent:       #2E75B6;   /* Mittleres Blau */
  --color-cta:          #C55A11;   /* Orange CTA */
  --color-cta-hover:    #A84A0D;
  --color-bg:           #FFFFFF;
  --color-bg-light:     #F4F7FB;   /* Sehr helles Blau-Grau */
  --color-bg-dark:      #0D2B45;   /* Footer-Hintergrund */
  --color-text:         #1A1A2E;
  --color-text-muted:   #5A6A7A;
  --color-text-light:   #B8CDD9;
  --color-border:       #D0DDE8;
  --color-success:      #1E7E4F;
  --color-warning:      #9B5700;

  /* Typografie */
  --font-heading:       'Source Serif 4', Georgia, serif;
  --font-body:          'Inter', system-ui, sans-serif;
  --font-size-base:     1rem;       /* 16px */
  --line-height-body:   1.7;
  --line-height-heading:1.25;

  /* Abstände */
  --space-xs:   0.25rem;
  --space-sm:   0.5rem;
  --space-md:   1rem;
  --space-lg:   1.5rem;
  --space-xl:   2.5rem;
  --space-2xl:  4rem;
  --space-3xl:  6rem;

  /* Layout */
  --container-max:  1200px;
  --container-pad:  1.25rem;

  /* Radius */
  --radius-sm:   4px;
  --radius:      8px;
  --radius-lg:   16px;
  --radius-pill: 999px;

  /* Schatten */
  --shadow-sm:    0 1px 3px rgba(31,78,121,0.08),
                  0 1px 2px rgba(31,78,121,0.06);
  --shadow-card:  0 4px 16px rgba(31,78,121,0.10),
                  0 1px 4px  rgba(31,78,121,0.06);
  --shadow-lg:    0 12px 40px rgba(31,78,121,0.16),
                  0 4px 12px  rgba(31,78,121,0.10);
  --shadow-nav:   0 2px 12px rgba(31,78,121,0.12);

  /* Übergänge */
  --transition:        0.22s ease;
  --transition-slow:   0.4s ease;

  /* Navigation */
  --nav-height:    68px;
}

/* ------------------------------------------------------------
   2. CSS RESET (modern, minimal)
   ------------------------------------------------------------ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: var(--line-height-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

img,
svg,
video,
canvas {
  max-width: 100%;
  height: auto;
  display: block;
}

input,
button,
textarea,
select {
  font: inherit;
}

p, h1, h2, h3, h4, h5, h6 {
  overflow-wrap: break-word;
}

ul, ol { list-style: none; }

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

a:hover { color: var(--color-primary); }

button { cursor: pointer; border: none; background: none; }

/* ------------------------------------------------------------
   3. TYPOGRAFIE-SKALA
   ------------------------------------------------------------ */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: var(--line-height-heading);
  color: var(--color-primary);
  font-weight: 700;
}

h1 {
  font-size: clamp(1.9rem, 4vw, 2.75rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  letter-spacing: -0.015em;
}

h3 {
  font-size: clamp(1.2rem, 2.2vw, 1.55rem);
  letter-spacing: -0.01em;
}

h4 {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  font-weight: 600;
}

p {
  font-size: 1rem;
  line-height: var(--line-height-body);
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

p:last-child { margin-bottom: 0; }

strong {
  font-weight: 700;
  color: var(--color-primary);
}

em { font-style: italic; }

small {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.lead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  line-height: 1.75;
}

/* Trennlinie */
hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-xl) 0;
}

/* Links im Fließtext */
.prose a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 3px;
  transition: text-decoration-color var(--transition);
}

.prose a:hover {
  text-decoration-color: var(--color-accent);
}

/* ------------------------------------------------------------
   4. UTILITY-KLASSEN
   ------------------------------------------------------------ */

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* Section-Padding */
.section-padding {
  padding-block: var(--space-3xl);
}

@media (max-width: 768px) {
  .section-padding {
    padding-block: var(--space-2xl);
  }
}

/* Text-Ausrichtung */
.text-center { text-align: center; }
.text-left   { text-align: left; }
.text-right  { text-align: right; }

/* Screenreader-only */
.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;
}

/* Hintergrundvarianten */
.bg-light   { background-color: var(--color-bg-light); }
.bg-primary { background-color: var(--color-primary); color: var(--color-bg); }
.bg-dark    { background-color: var(--color-bg-dark); color: var(--color-bg); }

/* Flex-Helfer */
.flex        { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-sm      { gap: var(--space-sm); }
.gap-md      { gap: var(--space-md); }
.gap-lg      { gap: var(--space-lg); }

/* Grid 2/3 Spalten */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3 { grid-template-columns: 1fr; }
}

@media (min-width: 480px) and (max-width: 768px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

/* Abstand-Helfer */
.mt-sm  { margin-top: var(--space-sm); }
.mt-md  { margin-top: var(--space-md); }
.mt-lg  { margin-top: var(--space-lg); }
.mt-xl  { margin-top: var(--space-xl); }
.mb-sm  { margin-bottom: var(--space-sm); }
.mb-md  { margin-bottom: var(--space-md); }
.mb-lg  { margin-bottom: var(--space-lg); }
.mb-xl  { margin-bottom: var(--space-xl); }

/* Divider mit Label */
.divider {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

/* ------------------------------------------------------------
   5. BUTTONS
   ------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1;
  cursor: pointer;
  border: 2px solid transparent;
  transition:
    background-color var(--transition),
    color           var(--transition),
    border-color    var(--transition),
    box-shadow      var(--transition),
    transform       var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

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

/* Primary */
.btn-primary {
  background-color: var(--color-cta);
  color: #FFFFFF;
  border-color: var(--color-cta);
  box-shadow: 0 2px 8px rgba(197,90,17,0.30);
}

.btn-primary:hover {
  background-color: var(--color-cta-hover);
  border-color: var(--color-cta-hover);
  box-shadow: 0 4px 16px rgba(197,90,17,0.40);
  color: #FFFFFF;
  transform: translateY(-1px);
}

/* Secondary */
.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: #FFFFFF;
  transform: translateY(-1px);
}

/* Ghost (hell auf dunklem Hintergrund) */
.btn-ghost {
  background-color: rgba(255,255,255,0.12);
  color: #FFFFFF;
  border-color: rgba(255,255,255,0.50);
  backdrop-filter: blur(4px);
}

.btn-ghost:hover {
  background-color: rgba(255,255,255,0.22);
  color: #FFFFFF;
  border-color: rgba(255,255,255,0.80);
  transform: translateY(-1px);
}

/* Größenvarianten */
.btn-sm {
  padding: 0.5rem 1.1rem;
  font-size: 0.8125rem;
}

.btn-lg {
  padding: 0.95rem 2.25rem;
  font-size: 1.0625rem;
}

/* ------------------------------------------------------------
   6. NAVIGATIONSLEISTE
   ------------------------------------------------------------ */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 900;
  height: var(--nav-height);
  background-color: rgba(255,255,255,0.97);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-nav);
  border-bottom: 2px solid var(--color-primary);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
  gap: var(--space-lg);
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo img {
  height: 42px;
  width: auto;
}

.nav-logo-text {
  font-family: var(--font-heading);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
}

.nav-logo-text span {
  display: block;
  font-size: 0.7rem;
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Desktop-Menü */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav-links a {
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  transition:
    color           var(--transition),
    background-color var(--transition);
  position: relative;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--color-primary);
  background-color: var(--color-bg-light);
}

/* Aktiver Menüpunkt */
.nav-links a.nav-active {
  color: var(--color-primary);
  font-weight: 700;
}

.nav-links a.nav-active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0.85rem;
  right: 0.85rem;
  height: 2px;
  background: var(--color-cta);
  border-radius: 2px;
}

/* CTA-Link in Nav */
.nav-links .btn-primary {
  margin-left: var(--space-sm);
  padding: 0.5rem 1.2rem;
  font-size: 0.875rem;
}

/* Hamburger-Button */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
  transition: background-color var(--transition);
  flex-shrink: 0;
}

.nav-hamburger:hover,
.nav-hamburger:focus-visible {
  background-color: var(--color-bg-light);
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 2px;
  transition:
    transform  var(--transition),
    opacity    var(--transition),
    width      var(--transition);
  transform-origin: center;
}

/* Hamburger → X */
.nav-hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

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

/* Mobile-Menü */
@media (max-width: 767px) {
  .nav-hamburger { display: flex; }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background-color: #FFFFFF;
    border-top: 1px solid var(--color-border);
    border-bottom: 3px solid var(--color-primary);
    box-shadow: 0 8px 24px rgba(31,78,121,0.15);
    padding: var(--space-md) var(--space-md) var(--space-lg);
    gap: var(--space-xs);
    animation: slideDown 0.22s ease;
  }

  @keyframes slideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
  }

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

  .nav-links a {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    font-size: 1rem;
  }

  .nav-links a.nav-active::after {
    display: none;
  }

  .nav-links a.nav-active {
    background-color: var(--color-bg-light);
    border-left: 3px solid var(--color-cta);
    padding-left: calc(1rem - 3px);
  }

  .nav-links .btn-primary {
    margin: var(--space-sm) 0 0;
    width: 100%;
    text-align: center;
  }
}

/* Tablet */
@media (min-width: 768px) and (max-width: 1024px) {
  .nav-links a { padding: 0.4rem 0.65rem; font-size: 0.875rem; }
}

/* ------------------------------------------------------------
   7. HERO-BEREICH
   ------------------------------------------------------------ */
.hero {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background:
    linear-gradient(135deg,
      var(--color-primary)   0%,
      #163d62                45%,
      #0D2B45                100%
    );
}

/* optionales Hintergrundbild */
.hero[data-bg] {
  background-image:
    linear-gradient(135deg,
      rgba(31,78,121,0.92)  0%,
      rgba(13,43,69,0.88)   100%
    ),
    var(--hero-bg-image);
  background-size: cover;
  background-position: center;
}

/* Dekoratives Raster-Overlay */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(46,117,182,0.25) 0%, transparent 60%),
    radial-gradient(circle at 80% 20%, rgba(197,90,17,0.12)  0%, transparent 50%);
  pointer-events: none;
}

/* Geometrische Akzente */
.hero::after {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: rgba(46,117,182,0.12);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
  padding-block: var(--space-3xl);
}

.hero-content .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.hero-text { max-width: 560px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background: rgba(197,90,17,0.18);
  border: 1px solid rgba(197,90,17,0.40);
  color: #F4A460;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.3rem 0.9rem;
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-lg);
}

.hero h1 {
  color: #FFFFFF;
  margin-bottom: var(--space-lg);
}

.hero h1 em {
  font-style: normal;
  color: #F4A460;
}

.hero .lead {
  color: rgba(255,255,255,0.82);
  margin-bottom: var(--space-xl);
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* Hero Bild-Bereich */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-card-preview {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  backdrop-filter: blur(8px);
  max-width: 320px;
  width: 100%;
}

/* Hero ohne visuelle Spalte: zentriert */
.hero-content.hero-centered .container {
  grid-template-columns: 1fr;
  text-align: center;
}

.hero-content.hero-centered .hero-text {
  max-width: 680px;
  margin-inline: auto;
}

.hero-content.hero-centered .hero-actions {
  justify-content: center;
}

@media (max-width: 768px) {
  .hero { min-height: auto; }

  .hero-content .container {
    grid-template-columns: 1fr;
  }

  .hero-visual { display: none; }

  .hero-content {
    padding-block: var(--space-2xl);
    text-align: center;
  }

  .hero-actions { justify-content: center; }

  .hero h1 { font-size: 1.75rem; }
}

/* Trust-Bar unter Hero */
.trust-bar {
  background: var(--color-bg-light);
  border-bottom: 1px solid var(--color-border);
  padding-block: var(--space-md);
}

.trust-bar-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.trust-item svg {
  width: 18px;
  height: 18px;
  color: var(--color-accent);
  flex-shrink: 0;
}

/* ------------------------------------------------------------
   8. CARD-KOMPONENTE
   ------------------------------------------------------------ */
.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition:
    box-shadow  var(--transition),
    transform   var(--transition),
    border-color var(--transition);
}

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

.card-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.card-body {
  padding: var(--space-lg) var(--space-xl);
}

.card-header {
  padding: var(--space-lg) var(--space-xl) 0;
}

.card-footer {
  padding: var(--space-md) var(--space-xl) var(--space-lg);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* Icon-Card */
.card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius);
  background: var(--color-bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
  transition: background-color var(--transition);
}

.card:hover .card-icon {
  background: var(--color-accent);
  color: #FFFFFF;
}

.card-icon svg {
  width: 26px;
  height: 26px;
}

.card h3 {
  margin-bottom: var(--space-sm);
}

.card p { color: var(--color-text-muted); }

/* Horizontale Card */
.card-horizontal {
  display: flex;
  gap: 0;
}

.card-horizontal .card-image {
  width: 200px;
  flex-shrink: 0;
  aspect-ratio: auto;
  border-radius: 0;
}

.card-horizontal .card-body {
  flex: 1;
}

@media (max-width: 480px) {
  .card-horizontal { flex-direction: column; }
  .card-horizontal .card-image { width: 100%; aspect-ratio: 16/9; }
}

/* Download-Card */
.card-download {
  border-left: 4px solid var(--color-cta);
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-lg) var(--space-xl);
  border-radius: var(--radius);
}

.card-download:hover {
  border-left-color: var(--color-primary);
}

/* Feature-Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-primary  { background: rgba(31,78,121,0.10);  color: var(--color-primary); }
.badge-accent   { background: rgba(46,117,182,0.12);  color: var(--color-accent);  }
.badge-cta      { background: rgba(197,90,17,0.12);   color: var(--color-cta);     }
.badge-success  { background: rgba(30,126,79,0.12);   color: var(--color-success); }

/* ------------------------------------------------------------
   9. SECTION-ÜBERSCHRIFTEN (zentriert, mit Strich)
   ------------------------------------------------------------ */
.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-header h2 { margin-bottom: var(--space-sm); }

.section-header p {
  max-width: 580px;
  margin-inline: auto;
  color: var(--color-text-muted);
  font-size: 1.0625rem;
}

.section-label {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-cta);
  margin-bottom: var(--space-sm);
}

/* Unterstreichen-Akzent */
.underline-accent {
  position: relative;
  display: inline-block;
}

.underline-accent::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-cta), var(--color-accent));
  border-radius: 2px;
}

/* ------------------------------------------------------------
   10. FORMULARE
   ------------------------------------------------------------ */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.form-group:last-of-type { margin-bottom: 0; }

label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"],
select,
textarea {
  width: 100%;
  padding: 0.7rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 1rem;
  transition:
    border-color var(--transition),
    box-shadow   var(--transition);
  outline: none;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(46,117,182,0.18);
}

input::placeholder,
textarea::placeholder { color: var(--color-text-muted); }

textarea {
  min-height: 120px;
  resize: vertical;
}

/* Checkbox / Radio */
.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 0.15rem;
  accent-color: var(--color-accent);
  cursor: pointer;
}

/* Fehlermeldung */
.form-error {
  color: #C62828;
  font-size: 0.8125rem;
}

/* Erfolgsmeldung */
.form-success {
  background: rgba(30,126,79,0.10);
  border: 1px solid rgba(30,126,79,0.30);
  border-radius: var(--radius);
  padding: var(--space-md) var(--space-lg);
  color: var(--color-success);
  font-weight: 500;
}

/* Kontaktformular-Card */
.contact-form-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2xl);
}

@media (max-width: 480px) {
  .contact-form-card { padding: var(--space-lg); }
}

/* ------------------------------------------------------------
   11. FOOTER
   ------------------------------------------------------------ */
.site-footer {
  background-color: var(--color-bg-dark);
  color: var(--color-text-light);
  padding-top: var(--space-3xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid rgba(255,255,255,0.10);
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: var(--space-md);
  text-decoration: none;
}

.footer-logo-text {
  font-family: var(--font-heading);
  font-size: 1.0625rem;
  font-weight: 700;
  color: #FFFFFF;
  line-height: 1.2;
}

.footer-logo-text span {
  display: block;
  font-size: 0.7rem;
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--color-text-light);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.footer-desc {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 0;
}

/* Footer-Spalten */
.footer-col h4 {
  color: #FFFFFF;
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: var(--space-lg);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-links a {
  color: var(--color-text-light);
  font-size: 0.9rem;
  text-decoration: none;
  transition: color var(--transition);
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

.footer-links a:hover { color: #FFFFFF; }

.footer-links a::before {
  content: '›';
  color: var(--color-accent);
  font-size: 1.1rem;
}

/* Kontaktzeilen */
.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-sm);
  line-height: 1.5;
}

.footer-contact-item svg {
  width: 16px;
  height: 16px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 0.15rem;
}

/* DSGVO-Kontaktlink (wird per JS enthüllt) */
[data-email],
[data-tel] {
  cursor: pointer;
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-color: transparent;
  transition: color var(--transition), text-decoration-color var(--transition);
}

[data-email]:hover,
[data-tel]:hover {
  color: #FFFFFF;
  text-decoration-color: var(--color-accent);
}

/* Copyright */
.footer-bottom {
  padding-block: var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-copyright {
  font-size: 0.8125rem;
  color: rgba(184,205,217,0.7);
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-bottom-links a {
  font-size: 0.8125rem;
  color: rgba(184,205,217,0.7);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-bottom-links a:hover { color: #FFFFFF; }

/* Footer Mobile */
@media (max-width: 767px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .footer-bottom-links { justify-content: center; }
}

@media (min-width: 480px) and (max-width: 767px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-grid > *:first-child {
    grid-column: 1 / -1;
  }
}

/* ------------------------------------------------------------
   12. ALERT / NOTIFICATION
   ------------------------------------------------------------ */
.alert {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius);
  border-left: 4px solid;
  font-size: 0.9375rem;
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
}

.alert-info    { background: rgba(46,117,182,0.08); border-color: var(--color-accent); color: var(--color-primary); }
.alert-success { background: rgba(30,126,79,0.08);  border-color: var(--color-success); color: #145432; }
.alert-warning { background: rgba(155,87,0,0.08);   border-color: #C67C00; color: var(--color-warning); }
.alert-error   { background: rgba(198,40,40,0.08);  border-color: #C62828; color: #9B1C1C; }

/* ------------------------------------------------------------
   13. SKIP-LINK (Barrierefreiheit)
   ------------------------------------------------------------ */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  z-index: 9999;
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-cta);
  color: #FFFFFF;
  font-weight: 700;
  border-radius: 0 0 var(--radius) var(--radius);
  text-decoration: none;
  transition: top var(--transition);
}

.skip-link:focus { top: 0; }

/* ------------------------------------------------------------
   14. SCROLL-INDIKATOR / PROGRESS
   ------------------------------------------------------------ */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-cta), var(--color-accent));
  z-index: 1000;
  transition: width 0.1s linear;
}

/* ------------------------------------------------------------
   15. RESPONSIVE UTILITIES
   ------------------------------------------------------------ */
.hide-mobile  { display: block; }
.show-mobile  { display: none; }

@media (max-width: 767px) {
  .hide-mobile { display: none; }
  .show-mobile { display: block; }
}

.hide-desktop  { display: none; }
.show-desktop  { display: block; }

@media (min-width: 768px) {
  .hide-desktop { display: none; }
  .show-desktop { display: block; }
}

/* ------------------------------------------------------------
   16. PRINT
   ------------------------------------------------------------ */
@media print {
  .site-nav,
  .site-footer,
  .btn,
  .hero::before,
  .hero::after { display: none !important; }

  body { font-size: 12pt; }
  a[href]::after { content: " (" attr(href) ")"; font-size: 10pt; }
}