/* ---------- Grundlagen ---------- */
:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f4f6f8;
  --color-text: #1a1f28;
  --color-text-soft: #4c5566;
  --color-primary: #1b3a5c;
  --color-primary-dark: #12283e;
  --color-accent: #2ea8a8;
  --color-accent-dark: #1f7a7a;
  --color-border: #e2e6ea;
  --radius: 10px;
  --max-width: 1120px;
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-main);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 { line-height: 1.25; margin: 0 0 16px; font-weight: 700; }
h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.15rem; margin-bottom: 8px; }
p { margin: 0 0 16px; color: var(--color-text-soft); }

a { color: var(--color-accent-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

.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;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent-dark);
  margin-bottom: 8px;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  border: 2px solid transparent;
  cursor: pointer;
  font-size: 1rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }

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

.btn-secondary {
  background: transparent;
  color: #ffffff;
  border-color: rgba(255,255,255,0.6);
}
.btn-secondary:hover { background: rgba(255,255,255,0.12); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.94);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo {
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}
.logo:hover { text-decoration: none; }

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 28px;
  margin: 0;
  padding: 0;
  align-items: center;
}
.main-nav a {
  color: var(--color-text);
  font-weight: 500;
}
.main-nav a.nav-cta {
  background: var(--color-primary);
  color: #fff;
  padding: 9px 18px;
  border-radius: var(--radius);
}
.main-nav a.nav-cta:hover { background: var(--color-primary-dark); text-decoration: none; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 24px; height: 2px; background: var(--color-primary); display: block;
}

/* ---------- KI-Suche (schwebendes Seitenfenster) ---------- */
.search-widget {
  position: fixed;
  top: 50%;
  right: 20px;
  transform: translateY(-50%);
  z-index: 90;
}
.search-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-primary);
  color: #fff;
  border: none;
  padding: 13px 20px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9rem;
  font-family: inherit;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(27,58,92,0.28);
  transition: background 0.15s ease, transform 0.15s ease;
}
.search-toggle:hover { background: var(--color-primary-dark); transform: translateY(-1px); }
.search-toggle[hidden] { display: none; }
.search-panel {
  width: 320px;
  max-height: min(78vh, 560px);
  overflow-y: auto;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: 0 14px 36px rgba(27,58,92,0.2);
  padding: 18px;
}
.search-panel[hidden] { display: none; }
.search-panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}
.search-panel-close {
  flex: 0 0 auto;
  background: none;
  border: none;
  font-size: 1.4rem;
  line-height: 1;
  color: var(--color-text-soft);
  cursor: pointer;
  padding: 0 0 0 8px;
}
.search-panel-close:hover { color: var(--color-text); }
.search-panel-title {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-primary);
  margin: 0 0 6px;
}
.search-panel-sub {
  font-size: 0.8rem;
  color: var(--color-text-soft);
  margin: 0 0 14px;
}
.search-widget-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.search-widget-form input {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-family: inherit;
}
.search-widget-form input:focus { outline: 2px solid var(--color-accent); outline-offset: 1px; }
.search-widget-actions { display: flex; gap: 8px; }
.search-widget-actions .btn { flex: 1; padding: 10px 12px; font-size: 0.88rem; text-align: center; }
.btn-clear {
  background: transparent;
  color: var(--color-text-soft);
  border-color: var(--color-border);
}
.btn-clear:hover { background: var(--color-bg-alt); }
.search-result { font-size: 0.9rem; }
.search-result:empty { margin-top: 0; }
.search-result:not(:empty) { margin-top: 14px; }
.search-status { color: var(--color-text-soft); font-size: 0.88rem; margin: 0; }
.search-error { color: #b3261e; }
.search-answer {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 14px 16px;
  color: var(--color-text);
  margin: 0 0 10px;
  white-space: pre-line;
  font-size: 0.9rem;
}
.search-sources { font-size: 0.8rem; color: var(--color-text-soft); }
.search-sources span { font-weight: 600; margin-right: 6px; }
.search-sources ul { list-style: none; padding: 0; margin: 6px 0 0; display: flex; flex-direction: column; gap: 4px; }
.search-sources a { word-break: break-word; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #ffffff;
  padding: 96px 0 88px;
}
.hero-inner { max-width: 760px; }
.hero h1 { color: #ffffff; }
.hero-sub { color: rgba(255,255,255,0.85); font-size: 1.15rem; max-width: 560px; }
.hero-actions { display: flex; gap: 16px; margin-top: 32px; flex-wrap: wrap; }

/* ---------- Sections ---------- */
.section { padding: 80px 0; }
.section-alt { background: var(--color-bg-alt); }
.section-intro { max-width: 640px; }

/* ---------- Leistungen ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 24px;
  margin-top: 32px;
}
.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}
.card:hover { box-shadow: 0 8px 24px rgba(27,58,92,0.1); transform: translateY(-2px); }
.card-icon { color: var(--color-accent); font-size: 1.4rem; margin-bottom: 12px; }

/* ---------- Über mich ---------- */
.about-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: center;
}
.about-portrait img {
  display: block;
  width: 100%;
  max-width: 320px;
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(27,58,92,0.12);
}

/* ---------- Chat-Demo ---------- */
.chat-widget {
  max-width: 620px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 4px 16px rgba(27,58,92,0.06);
  overflow: hidden;
  margin-top: 24px;
}
.chat-messages {
  padding: 20px;
  height: 320px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: var(--color-bg-alt);
}
.chat-msg {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  max-width: 90%;
}
.chat-msg-user { align-self: flex-end; flex-direction: row-reverse; }
.chat-avatar {
  flex: 0 0 auto;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.chat-msg-user .chat-avatar { background: var(--color-accent); }
.chat-bubble {
  background: #fff;
  border: 1px solid var(--color-border);
  padding: 10px 14px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  color: var(--color-text);
}
.chat-msg-user .chat-bubble { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.chat-bubble em { color: var(--color-text-soft); font-size: 0.85rem; }
.chat-msg-user .chat-bubble em { color: rgba(255,255,255,0.75); }

.chat-input-row {
  display: flex;
  gap: 10px;
  padding: 14px;
  border-top: 1px solid var(--color-border);
}
.chat-input-row input {
  flex: 1;
  padding: 11px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: inherit;
}
.chat-input-row input:focus { outline: 2px solid var(--color-accent); outline-offset: 1px; }
.chat-note {
  font-size: 0.8rem;
  color: var(--color-text-soft);
  padding: 0 16px 16px;
  margin: 0;
}

/* ---------- Kontakt ---------- */
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.contact-list { list-style: none; padding: 0; margin: 0; }
.contact-list li { margin-bottom: 8px; color: var(--color-text-soft); }
.contact-form {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
}
.contact-form label { font-weight: 600; margin-bottom: 6px; font-size: 0.9rem; }
.contact-form input, .contact-form textarea {
  padding: 11px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 1rem;
  margin-bottom: 18px;
  resize: vertical;
}
.contact-form input:focus, .contact-form textarea:focus { outline: 2px solid var(--color-accent); outline-offset: 1px; }
.form-note { font-size: 0.8rem; margin-top: 4px; margin-bottom: 0; }

/* ---------- Rechtstexte (Impressum/Datenschutz) ---------- */
.legal-page {
  padding: 64px 0 88px;
  max-width: 760px;
}
.legal-page h1 { margin-bottom: 8px; }
.legal-page .eyebrow { margin-bottom: 16px; }
.legal-page h2 {
  font-size: 1.2rem;
  margin-top: 36px;
  color: var(--color-primary);
}
.legal-page p, .legal-page li { color: var(--color-text-soft); }
.legal-page a { word-break: break-word; }
.legal-page ul { padding-left: 20px; }
.legal-page .back-link { display: inline-block; margin-top: 40px; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.75);
  padding: 24px 0;
  font-size: 0.85rem;
}
.footer-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.footer-inner a { color: rgba(255,255,255,0.85); }

/* ---------- Responsive ---------- */
@media (max-width: 820px) {
  .about-inner, .contact-inner { grid-template-columns: 1fr; }
  .about-portrait { order: -1; }
  .portrait-placeholder { max-width: 200px; }
}

@media (max-width: 680px) {
  .nav-toggle { display: flex; }
  .main-nav ul {
    position: absolute;
    top: 68px; left: 0; right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px;
    border-bottom: 1px solid var(--color-border);
    display: none;
    gap: 4px;
  }
  .main-nav ul.open { display: flex; }
  .main-nav a { display: block; padding: 10px 0; }
  .main-nav a.nav-cta { text-align: center; margin-top: 8px; }
  .hero { padding: 64px 0 56px; }
}

@media (max-width: 1180px) {
  .search-widget {
    top: auto;
    bottom: 16px;
    right: 16px;
    left: 16px;
    transform: none;
  }
  .search-toggle { width: 100%; justify-content: center; }
  .search-panel {
    width: auto;
    max-height: 60vh;
  }
}

@media (max-width: 420px) {
  .chat-input-row { padding: 10px; gap: 6px; }
  .chat-input-row .btn { padding: 11px 14px; font-size: 0.9rem; }
}