/* =====================================================
   Klaus Handler V3 — Public Stylesheet
   ===================================================== */

:root {
  /* Basis */
  --color-bg:           #fafaf9;
  --color-bg-alt:       #f5f5f4;
  --color-surface:      #ffffff;
  --color-text:         #1a1f2e;
  --color-text-muted:   #4b5563;
  --color-text-subtle:  #6b7280;
  --color-border:       #e5e5e4;

  /* Marke */
  --color-primary:       #1e5a8a;
  --color-primary-hover: #164461;
  --color-accent:        #d97706;
  --color-accent-hover:  #b45309;

  /* Status */
  --color-success: #16a34a;
  --color-warning: #ea580c;
  --color-error:   #dc2626;
  --color-info-bg: #fef9c3;
  --color-info-fg: #854d0e;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(26,31,46,0.04);
  --shadow-md: 0 4px 12px rgba(26,31,46,0.06);
  --shadow-lg: 0 12px 32px rgba(26,31,46,0.08);

  /* Spacing */
  --space-xs:  0.5rem;
  --space-sm:  0.875rem;
  --space-md:  1.25rem;
  --space-lg:  2rem;
  --space-xl:  3rem;
  --space-2xl: 4rem;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --max-width:     1200px;
  --content-width: 720px;

  --font: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 18px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; height: auto; }
a   { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-hover); text-decoration: underline; }

ul { margin: 0; padding-left: 1.4em; }
ul.unstyled { list-style: none; padding: 0; }

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.18;
  color: var(--color-text);
  margin: 0 0 0.5rem;
}
h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); letter-spacing: -0.02em; margin-bottom: 0.75rem; }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); letter-spacing: -0.015em; margin-bottom: 0.5rem; }
h3 { font-size: clamp(1.3rem, 2.6vw, 1.7rem); margin-bottom: 0.5rem; }
h4 { font-size: 1.1rem; margin-bottom: 0.4rem; }

p { margin: 0 0 1rem; }

.container { width: min(var(--max-width), calc(100% - 2rem)); margin: 0 auto; }
.content   { max-width: var(--content-width); margin-inline: auto; }

section { padding: 3rem 0; scroll-margin-top: 80px; }
section.section-tight { padding: 1.75rem 0; }
section.section-alt   { background: var(--color-bg-alt); }

.eyebrow {
  display: inline-block;
  padding: 0.3rem 0.75rem;
  background: rgba(30, 90, 138, 0.08);
  color: var(--color-primary);
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

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

/* -----------------------------------------------------
   Buttons
   ----------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s, transform .05s;
  white-space: nowrap;
  text-decoration: none;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.btn-primary:hover { background: var(--color-accent-hover); color: #fff; }

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-secondary:hover { background: var(--color-primary); color: #fff; }

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  border-color: var(--color-border);
}
.btn-ghost:hover { background: var(--color-bg-alt); color: var(--color-text); }

.btn-small { padding: 0.45rem 0.9rem; font-size: 0.9rem; }
.btn-block { width: 100%; }

.btn-group { display: flex; gap: var(--space-sm); flex-wrap: wrap; }

/* -----------------------------------------------------
   Header / Navigation
   ----------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250,250,249,0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
  gap: 1rem;
}
.brand { display: flex; align-items: center; gap: 0.6rem; }
.brand-logo { height: 36px; width: auto; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.nav-link {
  padding: 0.6rem 0.85rem;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-sm);
}
.nav-link:hover { background: var(--color-bg-alt); color: var(--color-text); text-decoration: none; }
.nav-link.active { color: var(--color-primary); }

.nav-cta { margin-left: 0.5rem; }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  background: none; border: none; padding: 10px;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  align-items: center; justify-content: center;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: transform .2s, opacity .2s;
}

@media (max-width: 980px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-sm);
    box-shadow: var(--shadow-md);
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-link { padding: 0.85rem 1rem; }
  .nav-cta  { margin-left: 0; margin-top: 0.5rem; }
}

/* -----------------------------------------------------
   Hero
   ----------------------------------------------------- */
.hero {
  padding: 3rem 0 2rem;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-lg);
  align-items: center;
}
.hero-text h1 { margin-bottom: 0.5rem; }
.hero-sub   { font-size: 1.25rem; line-height: 1.4; color: var(--color-text-muted); margin: 0.25rem 0 0.75rem; font-weight: 500; }
.hero-body  { font-size: 1.05rem; margin-bottom: 1rem; }
.hero-photo {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 5;
  background: #ddd;
}
.hero-photo img { width: 100%; height: 100%; object-fit: cover; }

@media (max-width: 880px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-photo { aspect-ratio: 3/2; max-height: 420px; }
}

/* -----------------------------------------------------
   Cards / Grid
   ----------------------------------------------------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  box-shadow: var(--shadow-sm);
}
.card h3 { margin-top: 0; }
.card-link {
  display: block;
  color: inherit;
  transition: transform .12s, box-shadow .12s;
}
.card-link:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); text-decoration: none; color: inherit; }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-md); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-md); }
.grid-5 { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: var(--space-md); }

@media (max-width: 880px) {
  .grid-2, .grid-3, .grid-5 { grid-template-columns: 1fr; }
}

.service-card .service-claim {
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}

.section-head {
  max-width: var(--content-width);
  margin: 0 auto 1.25rem;
  text-align: left;
}
.section-head p { margin-bottom: 0.5rem; }
.section-head.center { text-align: center; margin-inline: auto; }

/* -----------------------------------------------------
   Forms
   ----------------------------------------------------- */
.form-group { margin-bottom: var(--space-sm); }
.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.35rem;
}
.form-group .help {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-subtle);
  margin-top: 0.25rem;
}
.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group input[type="date"],
.form-group input[type="password"],
.form-group input[type="url"],
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.45rem 0.7rem;
  font: inherit;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
}
.form-group textarea { min-height: 100px; resize: vertical; }
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
  border-color: var(--color-primary);
}
.honeypot { position: absolute; left: -9999px; opacity: 0; }

.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  margin: var(--space-sm) 0;
}
.checkbox-row input { margin-top: 0.3rem; }

.radio-group { display: flex; flex-direction: column; gap: 0.4rem; }
.radio-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.7rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.radio-row:has(input:checked) { border-color: var(--color-primary); background: rgba(30,90,138,0.04); }

.status-banner {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
  font-weight: 500;
}
.status-banner.ok    { background: #ecfdf5; color: #14532d; border: 1px solid #a7f3d0; }
.status-banner.error { background: #fef2f2; color: #7f1d1d; border: 1px solid #fecaca; }
.status-banner.info  { background: #fef9c3; color: #854d0e; border: 1px solid #fde68a; }

/* -----------------------------------------------------
   Trust list
   ----------------------------------------------------- */
.trust-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: var(--space-sm) 0 0;
}
.trust-list li {
  background: var(--color-surface);
  padding: 0.5rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  font-size: 0.95rem;
}

/* -----------------------------------------------------
   Kontakt
   ----------------------------------------------------- */
.kontakt-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-lg);
}
@media (max-width: 880px) { .kontakt-grid { grid-template-columns: 1fr; } }

/* Rückruf: Info links, Formular rechts */
.rueckruf-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: var(--space-lg);
  align-items: start;
}
.rueckruf-info h1 { margin-bottom: 0.4rem; }
.rueckruf-info .hero-sub { font-size: 1.15rem; margin: 0 0 0.8rem; }
.rueckruf-info p { font-size: 1rem; margin-bottom: 0.7rem; }
.rueckruf-info .callout { margin-top: 1.25rem; }

.rueckruf-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.4rem;
  box-shadow: var(--shadow-sm);
}
.rueckruf-form .form-group { margin-bottom: 0.75rem; }
.rueckruf-form .radio-group-compact { gap: 0.25rem; }
.rueckruf-form .radio-row { padding: 0.4rem 0.7rem; font-size: 0.95rem; }
.rueckruf-form .checkbox-row { margin: 0.5rem 0 0.8rem; font-size: 0.95rem; }
.rueckruf-form .help { font-size: 0.8rem; }

.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }

@media (max-width: 880px) {
  .rueckruf-grid { grid-template-columns: 1fr; }
  .form-grid-2  { grid-template-columns: 1fr; gap: 0; }
}

.contact-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}
.contact-card h3 { margin-top: 0; }
.contact-card dl { margin: 0; }
.contact-card dt { font-weight: 600; margin-top: 0.85rem; }
.contact-card dd { margin: 0 0 0.5rem; color: var(--color-text-muted); }

/* -----------------------------------------------------
   Hinweis-Boxen
   ----------------------------------------------------- */
.note-box {
  background: var(--color-info-bg);
  color: var(--color-info-fg);
  border: 1px solid #fde68a;
  border-radius: var(--radius-sm);
  padding: var(--space-sm) var(--space-md);
  margin-bottom: var(--space-md);
}
.note-box strong { color: inherit; }
.callout {
  background: var(--color-bg-alt);
  border-left: 4px solid var(--color-primary);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  margin: var(--space-md) 0;
}

/* -----------------------------------------------------
   Process Steps
   ----------------------------------------------------- */
ol.process {
  counter-reset: step;
  list-style: none;
  padding-left: 0;
  display: grid;
  gap: var(--space-sm);
}
ol.process > li {
  counter-increment: step;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md) var(--space-sm) 4rem;
  position: relative;
}
ol.process > li::before {
  content: counter(step);
  position: absolute;
  left: 1.25rem;
  top: 1.05rem;
  width: 2rem; height: 2rem;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  font-weight: 700;
}

/* -----------------------------------------------------
   Blog cards
   ----------------------------------------------------- */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-md); }
@media (max-width: 880px) { .blog-grid { grid-template-columns: 1fr; } }

.blog-card .meta {
  font-size: 0.9rem;
  color: var(--color-text-subtle);
  margin-bottom: 0.5rem;
}
.blog-card h3 { font-size: 1.25rem; }
.blog-card .read-more { color: var(--color-primary); font-weight: 600; }

.blog-article {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: var(--space-xl) 0;
}
.blog-article header { margin-bottom: var(--space-lg); }
.blog-article header .meta { color: var(--color-text-subtle); font-size: 0.95rem; }
.blog-article h2 { margin-top: 2.5rem; }
.blog-article h3 { margin-top: 2rem; }
.blog-article p, .blog-article li { font-size: 1.05rem; }

/* -----------------------------------------------------
   Newsletter
   ----------------------------------------------------- */
.newsletter-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin: var(--space-md) 0;
}
.newsletter-box .inline-form {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 0.6rem;
  margin-top: var(--space-sm);
}
@media (max-width: 720px) { .newsletter-box .inline-form { grid-template-columns: 1fr; } }

.archive-list { list-style: none; padding: 0; display: grid; gap: 0.5rem; }
.archive-list li {
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.archive-list .date { color: var(--color-text-subtle); font-size: 0.9rem; }

/* -----------------------------------------------------
   Footer
   ----------------------------------------------------- */
.site-footer {
  background: #0f172a;
  color: #e2e8f0;
  margin-top: var(--space-2xl);
}
.site-footer a { color: #cbd5e1; }
.site-footer a:hover { color: #fff; }
.footer-grid {
  padding: var(--space-xl) 0 var(--space-lg);
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.2fr 1.2fr;
  gap: var(--space-lg);
}
@media (max-width: 880px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; }
}
.footer-col h4 { color: #fff; margin-bottom: var(--space-xs); font-size: 1rem; }
.footer-col ul { list-style: none; padding: 0; }
.footer-col li { padding: 0.18rem 0; }
.footer-spacer { height: 0.5rem; }
.footer-brand { font-size: 1.3rem; font-weight: 700; color: #fff; margin-bottom: var(--space-xs); }
.footer-frage {
  margin-top: var(--space-sm);
  padding: 1rem;
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
}
.footer-frage-label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #94a3b8;
  margin-bottom: 0.35rem;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 1rem 0;
  font-size: 0.9rem;
  color: #94a3b8;
}

/* -----------------------------------------------------
   Privacy banner
   ----------------------------------------------------- */
.privacy-banner {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  background: rgba(15, 23, 42, 0.96);
  color: #f1f5f9;
  z-index: 200;
  font-size: 0.92rem;
  border-top: 1px solid rgba(255,255,255,0.1);
}
.privacy-banner a { color: #93c5fd; }
.privacy-inner {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.85rem 0;
}
.privacy-inner p { margin: 0; flex: 1; }
@media (max-width: 560px) {
  .privacy-inner { flex-direction: column; align-items: stretch; text-align: center; }
}

/* -----------------------------------------------------
   Utility / Misc
   ----------------------------------------------------- */
.text-center { text-align: center; }
.mt-md { margin-top: var(--space-md) !important; }
.mt-lg { margin-top: var(--space-lg) !important; }
.mb-md { margin-bottom: var(--space-md) !important; }
.mb-lg { margin-bottom: var(--space-lg) !important; }
.hidden { display: none !important; }

blockquote {
  margin: var(--space-md) 0;
  padding: var(--space-sm) var(--space-md);
  border-left: 4px solid var(--color-border);
  color: var(--color-text-muted);
  font-style: italic;
}

hr { border: 0; border-top: 1px solid var(--color-border); margin: 1.5rem 0; }

/* -----------------------------------------------------
   Mobile (≤640px): kompakteres Spacing
   ----------------------------------------------------- */
@media (max-width: 640px) {
  body { font-size: 17px; line-height: 1.55; }
  section          { padding: 2rem 0; }
  section.section-tight { padding: 1.25rem 0; }
  .hero            { padding: 2rem 0 1.5rem; }
  .hero-sub        { font-size: 1.1rem; }
  .hero-body       { font-size: 1rem; }
  h1               { font-size: clamp(2rem, 8vw, 3rem); margin-bottom: 0.5rem; }
  h2               { font-size: clamp(1.5rem, 6vw, 2.1rem); }
  h3               { font-size: 1.25rem; }
  .section-head    { margin-bottom: 0.875rem; }
  .nav             { padding: 0.7rem 0; }
  .panel, .card    { padding: var(--space-sm); }
  ol.process > li  { padding: 0.7rem 0.9rem 0.7rem 3rem; }
  ol.process > li::before { left: 0.85rem; top: 0.7rem; width: 1.6rem; height: 1.6rem; font-size: 0.85rem; }
}