/* =============================================================
   HofErtrag — Globales CSS
   Helles, sachliches Theme mit Akzentfarbe
   Ohne externe Fonts (System-Stack, abmahn-sicher)
   ============================================================= */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ondark);
  background: var(--surface);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Lange Wörter / URLs umbrechen, damit auf schmalen Displays
   nichts über den Bildschirmrand hinausläuft */
p, li, h1, h2, h3, h4, a, span, td, th, summary, label {
  overflow-wrap: break-word;
  word-wrap: break-word;
}

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

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

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

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

ul, ol {
  list-style: none;
}

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

/* === BRAND-VARIABLEN === */
:root {
  /* Font-Stack ohne Google Fonts (abmahn-sicher) */
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont,
               'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-display: 'Inter Tight', 'Inter', system-ui, -apple-system,
                  BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: ui-monospace, 'SF Mono', 'Monaco', 'Cascadia Mono',
               'Roboto Mono', Consolas, 'Courier New', monospace;

  /* === HELL-THEME für deutschen B2B-Mittelstand === */
  /* Surface = Seiten-Hintergrund (vorher dunkel, jetzt hell-grau) */
  --surface: #F8FAFC;
  --surface-raised: #FFFFFF;

  /* Canvas (Karten/Sektionen) — vorher dunkle Boxen, jetzt weiße Cards mit zarter Border */
  --canvas: #FFFFFF;
  --canvas-soft: #F1F5F9;
  --canvas-border: #E2E8F0;

  /* Paper (helle Inseln) — bleibt für gewollt-helle Sektionen */
  --paper: #F1F5F9;
  --paper-soft: #E2E8F0;
  --paper-card: #FFFFFF;
  --paper-border: #CBD5E1;

  /* Text-Farben (auf hellem Hintergrund) */
  --ink: #0F172A;
  --ink-soft: #1E293B;
  --ink-muted: #475569;
  --ink-subtle: #64748B;

  /* "ondark" Variablen werden im Hell-Theme als dunkle Texte interpretiert */
  /* (Variablen-Namen behalten für Code-Stabilität, Werte sind jetzt für hellen BG optimiert) */
  --ondark: #0F172A;
  --ondark-soft: #1E293B;
  --ondark-muted: #475569;
  --ondark-subtle: #64748B;

  /* Accent-Farben — Branchen-Blau (wie Personio, lexoffice) statt Indigo */
  --accent: #15803D;
  --accent-deep: #14532D;
  --accent-glow: #16A34A;
  --accent-fade: #F0FDF4;
  --accent-hover: #166534;

  /* Signal-Farben (B2B-konservativ) */
  --signal: #65A30D;
  --success: #059669;
  --danger: #DC2626;
  --warning: #D97706;

  /* Schatten — dezent für Mittelstand, kein Glow-Effekt */
  --shadow-card-dark: 0 1px 2px rgba(15,23,42,.06), 0 6px 16px -3px rgba(15,23,42,.1);
  --shadow-cta: 0 2px 8px -1px rgba(21,128,61,.25);
  --shadow-glow: 0 4px 16px -4px rgba(21,128,61,.18), 0 1px 4px rgba(15,23,42,.05);
}

/* === TYPO-SCALE === */
.text-display-xl { font-size: clamp(2.5rem, 5vw, 4rem); line-height: 1.05; letter-spacing: -.03em; font-weight: 800; }
.text-display-lg { font-size: clamp(2rem, 4vw, 3rem); line-height: 1.1; letter-spacing: -.025em; font-weight: 800; }
.text-display-md { font-size: clamp(1.625rem, 3vw, 2.25rem); line-height: 1.15; letter-spacing: -.02em; font-weight: 800; }

/* === FOCUS-STATES === */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}
button:focus-visible, a:focus-visible {
  outline-offset: 4px;
}

/* === SR-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;
}

/* === SAAS-DARK BUTTONS === */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent);
  color: white;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.875rem 1.5rem;
  border-radius: 0.5rem;
  box-shadow: var(--shadow-cta);
  transition: all .15s ease;
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}
.btn-primary:active {
  background: var(--accent-hover);
  transform: translateY(0) scale(.98);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--canvas-soft);
  color: var(--ondark);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.875rem 1.5rem;
  border-radius: 0.5rem;
  border: 1px solid var(--canvas-border);
  transition: all .15s ease;
}
.btn-secondary:hover {
  border-color: rgba(21,128,61,.3);
  background: var(--canvas);
}
.btn-secondary:active {
  border-color: rgba(21,128,61,.3);
  background: var(--canvas);
  transform: scale(.98);
}

/* === EYEBROW (für Mittelstand: kein Mono/Sperrtext mehr) === */
.eyebrow {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: none;
  letter-spacing: 0;
  color: var(--accent);
}
.eyebrow-subtle {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 500;
  text-transform: none;
  letter-spacing: 0;
  color: var(--ink-muted);
}

/* === CONTAINER === */
.container-tight {
  max-width: 64rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}
.container-wide {
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}

@media (min-width: 1024px) {
  .container-tight, .container-wide {
    padding: 0 2rem;
  }
}

/* === SECTION === */
.section {
  padding: 5rem 0;
}
@media (min-width: 768px) {
  .section { padding: 7rem 0; }
}

.section-paper {
  background: var(--paper);
  color: var(--ink);
}
.section-paper .eyebrow {
  color: var(--accent-deep);
}

/* === GRID-HELPERS === */
.grid-cards {
  display: grid;
  gap: 1.25rem;
}
@media (min-width: 768px) {
  .grid-cards-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-cards-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-cards-4 { grid-template-columns: repeat(4, 1fr); }
}

/* === CARDS === */
.card-dark {
  background: var(--canvas);
  border: 1px solid var(--canvas-border);
  border-radius: 1rem;
  padding: 1.5rem;
  box-shadow: var(--shadow-card-dark);
  transition: all .2s ease;
}
.card-dark:hover {
  border-color: rgba(21,128,61,.3);
  box-shadow: 0 4px 16px -4px rgba(21,128,61,.12);
}

.card-paper {
  background: var(--paper-card);
  border: 1px solid var(--paper-border);
  border-radius: 1rem;
  padding: 1.5rem;
  box-shadow: 0 1px 3px rgba(15,23,42,.04), 0 4px 12px -3px rgba(15,23,42,.08);
  transition: all .2s ease;
}
.card-paper:hover {
  border-color: rgba(21,128,61,.25);
  box-shadow: 0 2px 6px rgba(15,23,42,.06), 0 8px 20px -4px rgba(15,23,42,.12);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px -4px rgba(15,23,42,.1);
}

/* === GRADIENT-TEXT === */
.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-glow) 50%, var(--signal) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* === BACKGROUND-GLOW === */
.bg-indigo-glow {
  background: radial-gradient(ellipse at center, rgba(21,128,61,.08), transparent 70%);
}

/* === ANIMATIONS === */
@keyframes pulse-soft {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}
@keyframes ping {
  75%, 100% { transform: scale(2); opacity: 0; }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
@keyframes count-pop {
  from { transform: scale(0.96); opacity: 0.7; }
  to { transform: scale(1); opacity: 1; }
}

.animate-pulse { animation: pulse-soft 2s cubic-bezier(0.4, 0, 0.6, 1) infinite; }
.animate-ping { animation: ping 1.5s cubic-bezier(0, 0, 0.2, 1) infinite; }
.animate-spin { animation: spin 1s linear infinite; }
.animate-count { animation: count-pop .3s ease-out; }

/* === SLIDER (Calculator) === */
.slider-saas {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(
    to right,
    var(--accent) 0%,
    var(--accent) var(--progress, 50%),
    var(--canvas-border) var(--progress, 50%),
    var(--canvas-border) 100%
  );
  outline: none;
  cursor: pointer;
  /* Verhindert, dass das Ziehen des Sliders mit dem Seiten-Scroll
     kollidiert. Horizontales Wischen steuert den Slider, vertikal
     scrollt die Seite. */
  touch-action: pan-y;
}

.slider-saas::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: white;
  border: 2px solid var(--accent);
  cursor: grab;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.4);
  transition: transform .1s;
}
.slider-saas::-webkit-slider-thumb:active { cursor: grabbing; transform: scale(1.1); }

.slider-saas::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: white;
  border: 2px solid var(--accent);
  cursor: grab;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.4);
}

/* === DETAILS-SUMMARY (Lead-Magnet-Toggle) === */
details > summary {
  list-style: none;
  cursor: pointer;
}
details > summary::-webkit-details-marker { display: none; }

/* === FAQ === */
.faq-item {
  border-bottom: 1px solid var(--paper-border);
}
.faq-item summary {
  padding: 1.25rem 0;
  font-weight: 600;
  font-size: 1.0625rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.faq-item summary::after {
  content: "+";
  font-size: 1.25rem;
  color: var(--accent);
  transition: transform .2s;
}
.faq-item[open] summary::after { content: "−"; }
.faq-item p {
  padding-bottom: 1.25rem;
  color: var(--ink-muted);
  line-height: 1.65;
}

/* === DECORATIVE LINE === */
.accent-line {
  display: inline-block;
  width: 40px;
  height: 2px;
  background: var(--accent);
  margin: 0;
}

/* === STICKY MOBILE CTA === */
.sticky-mobile-cta {
  position: fixed;
  bottom: 1rem;
  left: 1rem;
  right: 1rem;
  z-index: 50;
  display: flex;
  gap: 0.5rem;
}
@media (min-width: 768px) {
  .sticky-mobile-cta { display: none; }
}

/* === MARKER FÜR SLIDER-LISTEN === */
.list-disc { list-style: disc; padding-left: 1.5rem; }
.list-decimal { list-style: decimal; padding-left: 1.5rem; }

/* === HEADER-NAV HOVER (CSP-konform statt Inline-JS) === */
.nav-desktop a {
  transition: color 0.15s ease;
}
.nav-desktop a:hover {
  color: var(--ondark) !important;
}

/* === FOOTER-LINK HOVER === */
footer a:hover,
footer button[data-action]:hover {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}
footer button[data-action] {
  font-family: inherit;
  border: none;
  text-align: left;
}

/* === SKIP-LINK A11y === */
.skip-link:focus {
  left: 1rem !important;
  top: 1rem !important;
}

/* ============================================================
   NEWSLETTER-ANMELDUNG VORÜBERGEHEND AUSGEBLENDET
   ============================================================
   Grund: Das Formular sendet an api/lead-proxy.php. Solange dort
   keine .env mit den Brevo-Zugangsdaten liegt, antwortet der Server
   mit einem Fehler. Besucher würden ihre E-Mail eintragen und statt
   der Checkliste eine Fehlermeldung bekommen.

   WIEDER EINSCHALTEN (wenn die .env eingerichtet ist):
   Löschen Sie einfach die drei Zeilen unter diesem Kommentar
   (oder setzen Sie ein /* davor und ein Sternchen-Slash dahinter).
   Danach ist die Anmeldung sofort wieder sichtbar.
   ============================================================ */
.newsletter-block {
  display: none !important;
}


/* --- Weiterlesen / verwandte Artikel --- */
.related-grid{margin-top:1rem;display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:.625rem;}
.related-card{display:flex;align-items:center;justify-content:space-between;gap:.875rem;padding:.9rem 1.05rem;background:var(--surface-raised);border:1px solid var(--canvas-border);border-radius:.75rem;color:var(--ink-soft);font-family:var(--font-display);font-weight:600;font-size:.9375rem;line-height:1.3;text-decoration:none;transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease,background .18s ease;}
.related-card:hover{border-color:var(--accent-glow);background:var(--accent-fade);box-shadow:var(--shadow-glow);transform:translateY(-1px);}
.related-card svg{flex-shrink:0;color:var(--accent-glow);transition:transform .18s ease;}
.related-card:hover svg{transform:translateX(3px);}
.related-card:focus-visible{outline:2px solid var(--accent-glow);outline-offset:2px;}
@media (prefers-reduced-motion:reduce){.related-card,.related-card svg{transition:none;}.related-card:hover{transform:none;}}