/* ==========================================================
   Tele Future – Stylesheet
   Keine externen Schriften/Skripte -> keine Datenübertragung
   an Dritte (DSGVO-freundlich, kein Cookie-Banner nötig).
   ========================================================== */

:root {
  --navy: #0b1f3a;
  --navy-2: #13305a;
  --blau: #1663d6;
  --cyan: #12b5cb;
  --hell: #f4f0e7;   /* Akzentton von der bisherigen tele-future.de übernommen */
  --text: #1c2533;
  --text-2: #4a5768;
  --linie: #dbe3ee;
  --weiss: #ffffff;
  --radius: 14px;
  --schatten: 0 8px 30px rgba(11, 31, 58, .08);
  --max: 1160px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--weiss);
  line-height: 1.65;
  font-size: 17px;
}

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

a { color: var(--blau); }
a:hover { color: var(--navy-2); }

:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* Barrierefreiheit: Sprunglink */
.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--navy); color: #fff; padding: 10px 16px; z-index: 100;
}
.skip-link:focus { left: 10px; top: 10px; }

/* ---------- Kopfzeile ---------- */
.header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--linie);
  backdrop-filter: blur(6px);
}
.header .container {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 72px; gap: 16px;
}
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--navy); }
.logo img { width: 42px; height: 42px; }
.logo span { font-weight: 800; font-size: 1.25rem; letter-spacing: -.02em; }
.logo span b { color: var(--blau); }

.nav ul { list-style: none; display: flex; gap: 26px; margin: 0; padding: 0; }
.nav a { text-decoration: none; color: var(--text); font-weight: 600; font-size: .96rem; }
.nav a:hover { color: var(--blau); }

.nav-toggle {
  display: none; background: none; border: 1px solid var(--linie);
  border-radius: 8px; padding: 8px 12px; font-size: 1rem; cursor: pointer; color: var(--navy);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; padding: 13px 26px; border-radius: 999px;
  font-weight: 700; text-decoration: none; transition: .2s; border: 2px solid transparent;
}
.btn-primaer { background: var(--blau); color: #fff; }
.btn-primaer:hover { background: var(--navy-2); color: #fff; }
.btn-sekundaer { border-color: rgba(255,255,255,.5); color: #fff; }
.btn-sekundaer:hover { background: rgba(255,255,255,.1); color: #fff; }

/* ---------- Hero ---------- */
.hero {
  background: radial-gradient(1200px 500px at 85% 10%, #1b4b8f 0%, transparent 60%),
              linear-gradient(135deg, var(--navy) 0%, #0e2a52 100%);
  color: #fff; padding: 80px 0 90px; overflow: hidden;
}
.hero .container { display: grid; grid-template-columns: 1.05fr 1fr; gap: 50px; align-items: center; }
.hero .label {
  display: inline-block; background: rgba(18,181,203,.15); color: #7fe3f0;
  padding: 6px 14px; border-radius: 999px; font-size: .85rem; font-weight: 700; letter-spacing: .04em;
}
.hero h1 { font-size: clamp(2rem, 4.2vw, 3.2rem); line-height: 1.12; margin: 18px 0; letter-spacing: -.02em; }
.hero h1 em { font-style: normal; color: var(--cyan); }
.hero p { color: #c8d6ea; font-size: 1.12rem; max-width: 560px; }
.hero .aktionen { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 28px; }

/* ---------- Sektionen ---------- */
section { padding: 90px 0; }
.sektion-hell { background: var(--hell); }
.kopf { text-align: center; max-width: 720px; margin: 0 auto 50px; }
.ueber { color: var(--blau); font-weight: 800; letter-spacing: .08em; text-transform: uppercase; font-size: .82rem; }
.kopf h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); margin: 8px 0 12px; color: var(--navy); letter-spacing: -.01em; }
.kopf p { color: var(--text-2); margin: 0; }

/* Leistungen */
.karten { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 24px; }
.karte {
  background: #fff; border: 1px solid var(--linie); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--schatten); transition: transform .2s;
}
.karte:hover { transform: translateY(-4px); }
.karte img { width: 58px; height: 58px; margin-bottom: 16px; }
.karte h3 { margin: 0 0 8px; color: var(--navy); font-size: 1.15rem; }
.karte p { margin: 0; color: var(--text-2); font-size: .97rem; }

/* Zwei-Spalten */
.zweispaltig { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.zweispaltig h2 { color: var(--navy); font-size: clamp(1.7rem, 3vw, 2.3rem); margin-top: 0; }
.haken { list-style: none; padding: 0; margin: 22px 0 0; }
.haken li { padding-left: 34px; position: relative; margin-bottom: 12px; }
.haken li::before {
  content: ""; position: absolute; left: 0; top: 4px; width: 22px; height: 22px; border-radius: 50%;
  background: var(--blau) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 12.5l4 4 8-9' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/14px no-repeat;
}

/* Ablauf */
.schritte { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: s; }
.schritt { background: #fff; border-radius: var(--radius); padding: 26px; border: 1px solid var(--linie); position: relative; }
.schritt::before {
  counter-increment: s; content: counter(s);
  display: grid; place-items: center; width: 44px; height: 44px; border-radius: 12px;
  background: linear-gradient(135deg, var(--blau), var(--cyan)); color: #fff; font-weight: 800; margin-bottom: 14px;
}
.schritt h3 { margin: 0 0 6px; color: var(--navy); font-size: 1.08rem; }
.schritt p { margin: 0; color: var(--text-2); font-size: .95rem; }

/* Branchen */
.branchen { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.branchen span { background: #fff; border: 1px solid var(--linie); padding: 10px 18px; border-radius: 999px; font-weight: 600; color: var(--navy-2); }

/* Kontakt */
.kontakt { background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 100%); color: #fff; }
.kontakt h2 { color: #fff; }
.kontakt p { color: #c8d6ea; }
.kontakt-box { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.15); border-radius: var(--radius); padding: 30px; }
.kontakt-box dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 12px 18px; }
.kontakt-box dt { font-weight: 700; color: #7fe3f0; }
.kontakt-box dd { margin: 0; }
.kontakt-box a { color: #fff; }
.hinweis-klein { font-size: .85rem; color: #9fb3cf !important; margin-top: 18px; }

/* ---------- Fußzeile ---------- */
.footer { background: #071528; color: #9fb3cf; padding: 40px 0; font-size: .92rem; }
.footer .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.footer a { color: #d7e3f4; text-decoration: none; margin-left: 20px; }
.footer a:first-child { margin-left: 0; }
.footer a:hover { text-decoration: underline; }

/* ---------- Rechtstexte ---------- */
.rechtstext { max-width: 820px; margin: 0 auto; padding: 60px 20px 90px; }
.rechtstext h1 { color: var(--navy); font-size: 2.2rem; }
.rechtstext h2 { color: var(--navy); margin-top: 2.2em; font-size: 1.35rem; }
.rechtstext h3 { color: var(--navy-2); font-size: 1.08rem; margin-top: 1.6em; }

/* Platzhalter: vor Veröffentlichung ersetzen! (siehe ANLEITUNG) */
.platzhalter { background: #fff3a8; color: #5b4a00; padding: 0 4px; border-radius: 3px; }

/* ---------- Responsive ---------- */
@media (max-width: 920px) {
  .hero .container, .zweispaltig { grid-template-columns: 1fr; }
  .schritte { grid-template-columns: 1fr 1fr; }
  .nav-toggle { display: block; }
  .nav { display: none; position: absolute; top: 72px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--linie); }
  .nav.offen { display: block; }
  .nav ul { flex-direction: column; gap: 0; padding: 10px 20px; }
  .nav li a { display: block; padding: 12px 0; border-bottom: 1px solid var(--linie); }
}
@media (max-width: 560px) {
  section { padding: 64px 0; }
  .schritte { grid-template-columns: 1fr; }
  .footer a { margin: 0 16px 0 0; }
  .kontakt-box dl { grid-template-columns: 1fr; gap: 2px; }
  .kontakt-box dd { margin-bottom: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}

/* Kontaktdaten als Grafik (Impressum/Datenschutz) */
.kontaktbild { max-width: 303px; width: 100%; height: auto; }

/* Cookie-Hinweis */
.cookie-hinweis {
  position: fixed; left: 16px; right: 16px; bottom: 16px; z-index: 200;
  max-width: 880px; margin: 0 auto;
  background: #fff; border: 1px solid var(--linie); border-radius: var(--radius);
  box-shadow: 0 12px 40px rgba(11, 31, 58, .22);
  animation: hinweisEin .35s ease-out;
}
.cookie-inhalt { display: flex; align-items: center; gap: 18px; padding: 18px 22px; }
.cookie-inhalt img { width: 40px; height: 40px; flex-shrink: 0; }
.cookie-inhalt p { margin: 0; font-size: .95rem; color: var(--text-2); flex: 1; }
.cookie-inhalt strong { color: var(--navy); }
.cookie-inhalt .btn { flex-shrink: 0; cursor: pointer; font: inherit; font-weight: 700; }
@keyframes hinweisEin { from { transform: translateY(20px); opacity: 0; } to { transform: none; opacity: 1; } }
@media (max-width: 600px) {
  .cookie-inhalt { flex-direction: column; align-items: stretch; text-align: left; gap: 12px; }
  .cookie-inhalt img { display: none; }
  .cookie-inhalt .btn { width: 100%; }
}

/* Download-Button & -Bereich */
.nav a.nav-download { background: var(--blau); color: #fff; padding: 8px 16px; border-radius: 999px; }
.nav a.nav-download:hover { background: var(--navy-2); color: #fff; }
.download-teaser {
  display: flex; align-items: center; gap: 28px; flex-wrap: wrap;
  background: #fff; border: 1px solid var(--linie); border-radius: var(--radius);
  padding: 34px; box-shadow: var(--schatten);
}
.download-teaser img { width: 72px; height: 72px; flex-shrink: 0; }
.download-teaser div { flex: 1; min-width: 240px; }
.download-teaser h2 { margin: 0 0 6px; color: var(--navy); }
.download-teaser p { margin: 0; color: var(--text-2); }
.dateiliste { list-style: none; padding: 0; margin: 30px 0 0; display: grid; gap: 14px; }
.dateiliste li {
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  border: 1px solid var(--linie); border-radius: var(--radius); padding: 18px 22px; background: #fff;
}
.dateiliste img { width: 44px; height: 44px; }
.dateiliste .info { flex: 1; min-width: 200px; }
.dateiliste .info strong { display: block; color: var(--navy); }
.dateiliste .info span { color: var(--text-2); font-size: .92rem; }
.dateiliste .btn { padding: 10px 20px; }
@media (max-width: 920px) {
  .nav a.nav-download { display: inline-block; margin: 10px 0; border-bottom: 0; }
}
@media (max-width: 560px) { .dateiliste .btn { width: 100%; text-align: center; } }

/* Download-Seite */
.hero-klein { padding: 60px 0 64px; }
.hero-klein .container { grid-template-columns: 1fr auto; }
.hero-icon { width: 160px; height: 160px; border-radius: 32px; box-shadow: 0 20px 50px rgba(18,181,203,.25); }
.download-karte { display: flex; flex-direction: column; }
.download-karte .datei-meta { margin: 12px 0 18px; font-size: .85rem; color: var(--blau); font-weight: 600; }
.download-karte .btn { margin-top: auto; text-align: center; }
@media (max-width: 920px) {
  .hero-klein .container { grid-template-columns: 1fr; }
  .hero-icon { display: none; }
}
.karten-dl { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }

/* Unauffälliger Admin-Zugang über das ©-Zeichen */
.footer a.admin-link { color: inherit; text-decoration: none; margin: 0; cursor: pointer; }
.footer a.admin-link:hover, .footer a.admin-link:focus-visible { color: #fff; text-decoration: none; }

/* ---------- Admin-Bereich ---------- */
body.admin { background: var(--hell); }
.admin-main { padding-top: 40px; padding-bottom: 80px; max-width: 980px; }
.admin-badge { font-size: .7rem; background: var(--navy); color: #fff; padding: 3px 8px; border-radius: 6px; vertical-align: middle; margin-left: 6px; font-weight: 700; }
.admin-kopf-aktionen { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.admin-kopf-aktionen form { margin: 0; }
.admin-karte { background: #fff; border: 1px solid var(--linie); border-radius: var(--radius); padding: 28px; box-shadow: var(--schatten); margin-bottom: 24px; }
.admin-karte h1, .admin-karte h2 { color: var(--navy); margin-top: 0; }
.admin-login { max-width: 440px; margin: 40px auto; }
.admin-form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 18px; }
.admin-login .admin-form { grid-template-columns: 1fr; }
.admin-form label { display: flex; flex-direction: column; gap: 6px; font-weight: 600; font-size: .92rem; color: var(--navy); }
.admin-form .breit { grid-column: 1 / -1; }
.admin-form input[type=text], .admin-form input[type=password], .admin-form select, .admin-form textarea, .admin-form input[type=file] {
  font: inherit; font-weight: 400; padding: 10px 12px; border: 1px solid var(--linie); border-radius: 10px; background: #fff; color: var(--text); width: 100%;
}
.admin-form textarea { resize: vertical; }
.admin-form button { cursor: pointer; font: inherit; font-weight: 700; justify-self: start; }
.admin-form button:disabled { opacity: .6; cursor: wait; }
.btn-rand { border: 2px solid var(--linie); color: var(--navy); background: #fff; padding: 8px 18px; }
.btn-rand:hover { border-color: var(--blau); color: var(--blau); }
.btn-gefahr { background: #fff; color: #b42318; border: 2px solid #f1c4bf; padding: 11px 22px; cursor: pointer; font: inherit; font-weight: 700; }
.btn-gefahr:hover { background: #b42318; color: #fff; border-color: #b42318; }
.admin-meldung { padding: 12px 16px; border-radius: 10px; font-weight: 600; margin: 0 0 18px; }
.admin-meldung.ok { background: #e6f6ee; color: #146c43; }
.admin-meldung.fehler { background: #fdecea; color: #b42318; }
.admin-meldung.info { background: #e8f0fb; color: var(--navy-2); }
.admin-code { background: var(--navy); color: #7fe3f0; padding: 14px; border-radius: 10px; overflow-x: auto; font-size: .85rem; white-space: pre-wrap; word-break: break-all; }
.admin-klein { font-size: .85rem; color: var(--text-2); margin: 8px 0 0; }
.admin-zaehler { font-size: .9rem; font-weight: 600; color: var(--text-2); margin-left: 8px; }
.admin-datei { display: grid; grid-template-columns: 44px 1fr auto; gap: 18px; align-items: start; padding: 20px 0; border-top: 1px solid var(--linie); }
.admin-datei img { width: 44px; height: 44px; }
.admin-loeschen { margin: 0; }
@media (max-width: 700px) {
  .admin-form { grid-template-columns: 1fr; }
  .admin-datei { grid-template-columns: 1fr; }
  .admin-datei img { display: none; }
  .admin-kopf-aktionen a { display: none; }
}

/* Fernwartung */
.btn-gross { padding: 16px 34px; font-size: 1.08rem; }
.schritte-3 { grid-template-columns: repeat(3, 1fr); }
.warnbox { background: #fff7e6; border: 1px solid #f5d48a; border-left: 6px solid #e8a317; border-radius: var(--radius); padding: 26px; }
.warnbox h3 { margin: 0 0 8px; color: #7a4b00; }
.warnbox p { margin: 0; color: #5b4300; }
.warnbox a { color: #7a4b00; font-weight: 700; }
@media (max-width: 920px) { .schritte-3 { grid-template-columns: 1fr; } }
.sektion-eng { padding-bottom: 0; }