/* =========================
   Nexentra – Global Styles
   ========================= */

/* Farben & Design-Variablen */
:root {
  --bg:        #e9f2ff;  /* Seitenhintergrund */
  --fg:        #0b3a62;  /* Primärtext (dunkles Blau) */
  --muted:     #456a8a;  /* Sekundärtext */
  --accent:    #0a6aa1;  /* Blau für Links/Buttons */
  --accent2:   #00c2c7;  /* Türkis für CTA */
  --line:      #e5eef7;  /* zarte Linien/Felder */
  --card:      #f6faff;  /* Kartenhintergrund */
  --white:     #ffffff;
  --shadow:    0 4px 20px rgba(0,0,0,.05);
}

/* Reset/Grundlayout */
* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover, a:focus { text-decoration: underline; }
button { font-family: inherit; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 12px 20px;
}

/* =========================
   Header / Navigation
   ========================= */
.header {
  position: sticky;
  top: 0; z-index: 50;
  background: #ffffffee;
  backdrop-filter: saturate(120%) blur(6px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
}
.menu {
  display: flex;
  gap: 22px;
  align-items: center;
  flex-wrap: wrap;
}
.menu a {
  color: var(--fg);
  opacity: .9;
  font-weight: 600;
}
.menu a:focus-visible { outline: 2px solid var(--accent2); outline-offset: 2px; }
/* Aktiver Menüpunkt: entweder Klasse .active ODER inline style font-weight */
.menu a.active,
.menu a[style*="font-weight:700"] {
  opacity: 1;
}

/* Burger (wird per JS getoggled) */
.burger {
  background: #f0f6fc;
  border: 1px solid var(--line);
  padding: 8px 10px;
  border-radius: 10px;
  cursor: pointer;
}
.burger:focus-visible { outline: 2px solid var(--accent2); }

/* =========================
   Hero
   ========================= */
.hero {
  padding: 0;                 /* kompakt */
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  text-align: center;
}
.hero img.biglogo {
  max-width: 420px;           /* Logo-Größe Startseite */
}
.hero h1 {
  font-size: clamp(28px, 4vw, 42px);
  margin: 6px 0 8px;
}
.p {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.6;
}

/* =========================
   Grids & Cards
   ========================= */
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px;
  margin-top: 12px;
  box-shadow: var(--shadow);
}

h1 { font-size: clamp(28px, 4vw, 42px); margin: 0 0 8px; }
h2 { font-size: clamp(22px, 2.5vw, 28px); margin: 20px 0 8px; }
h3 { font-size: clamp(18px, 2vw, 22px); margin: 12px 0 6px; }

/* =========================
   Buttons / CTAs
   ========================= */
.cta,
button.cta,
.cta[type=submit],
button[type=submit] {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent2), var(--accent));
  color: #041018;
  font-weight: 700;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid #d6e7f6;
  transition: box-shadow .2s ease, transform .06s ease;
}
.cta:hover,
button.cta:hover,
.cta[type=submit]:hover,
button[type=submit]:hover {
  text-decoration: none;
  box-shadow: 0 0 0 6px rgba(10,106,161,.12);
}
.cta:active,
button.cta:active { transform: translateY(1px); }
.cta:focus-visible { outline: 2px solid var(--accent2); outline-offset: 2px; }

/* =========================
   Formular-Layout
   ========================= */
form {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
}
.field { margin-bottom: 1rem; }
label {
  display: block;
  font-weight: 600;
  margin-bottom: .4rem;
  color: #1a1a1a;
}
input[type=text],
input[type=email],
input[type=tel],
input[type=date],
input[type=file],
select,
textarea {
  width: 100%;
  padding: .6rem .8rem;
  border: 1px solid #cfd8dc;
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  background: #fff;
}
textarea { resize: vertical; min-height: 110px; }
.checkbox { display: block; margin-bottom: .4rem; }
.help { display: block; font-size: .85em; opacity: .8; margin-top: .25rem; }
select[multiple] { min-height: 120px; }

/* =========================
   Footer
   ========================= */
footer {
  border-top: 1px solid var(--line);
  margin-top: 24px;
  background: var(--white);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  padding: 12px 20px;
  color: #6b879e;
  font-size: 14px;
}
.footer-links a {
  font-size: 12px;
  color: #6b879e;
  border: 1px solid var(--line);
  padding: 6px 10px;
  border-radius: 999px;
}

/* =========================
   Utilities
   ========================= */
.center { text-align: center; }
.hidden { display: none !important; }

/* =========================
   Responsive
   ========================= */
@media (max-width: 900px) {
  .grid-3, .grid-2 { grid-template-columns: 1fr; }

  /* Menü kompakt, weiterhin zentriert */
  .menu {
    gap: 12px;
    justify-content: center;
  }

  /* Burger auf kleineren Screens sichtbar (falls genutzt) */
  .burger { display: block; }

  /* Logo im Hero etwas kleiner auf Mobil */
  .hero img.biglogo { max-width: 320px; }
}

@media (min-width: 901px) {
  /* Burger auf Desktop ausblenden (falls in HTML vorhanden) */
  .burger { display: none; }
}


/* --- Fieldset/Legend und Checkbox-Layout --- */
fieldset.field {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px 10px;
}

fieldset.field legend {
  padding: 0 6px;
  font-weight: 600;
  color: var(--fg);
}

.checkbox-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;   /* 2 Spalten, passt sich an */
  gap: 8px 16px;
  margin-top: 8px;
}

@media (max-width: 700px) {
  .checkbox-grid { grid-template-columns: 1fr; } /* mobil einspaltig */
}

.checkbox label,
label.checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-weight: 500;
}

.checkbox input[type="checkbox"],
label.checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin: 0;
}

/* --- Datenschutzzeile sauber ausrichten --- */
.privacy-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.privacy-row input[type="checkbox"] {
  margin-top: 3px; /* visuelle Zentrierung zur Textzeile */
}

.privacy-row a { text-decoration: underline; }