/* ================================================================
   RPC Clinic – styles.css
   Ruhiges, medizinisch-wissenschaftliches Design.
   Alle zentralen Werte sind als CSS-Variablen hinterlegt und
   koennen unten im :root-Block bequem angepasst werden.
   ================================================================ */

/* ---------- 1. Design-Variablen ------------------------------- */
:root {
  /* Farben */
  --color-bg: #F7F5F0;            /* warmes Off-White (Hintergrund) */
  --color-text: #18201D;         /* tiefes Anthrazit (Text) */
  --color-primary: #1D4A3B;      /* dunkles Medizin-Gruen */
  --color-accent: #B49A67;       /* zurueckhaltendes warmes Gold */
  --color-bg-secondary: #EFEDE7; /* Sekundaerhintergrund */
  --color-border: #D8D3C9;       /* Linien und Trennung */
  --color-primary-dark: #163a2e; /* Hover-Zustand Primaerfarbe */

  /* Typografie */
  --font-heading: Georgia, "Times New Roman", serif;
  --font-body: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --line-height: 1.7;

  /* Layout */
  --content-width: 1120px;
  --space-section: 6rem;
  --radius: 10px;
  --radius-sm: 6px;

  /* Schatten und Uebergaenge */
  --shadow-soft: 0 1px 2px rgba(24, 32, 29, 0.04), 0 8px 24px rgba(24, 32, 29, 0.05);
  --transition: 200ms ease;
}

/* ---------- 2. Grundlagen ------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: var(--line-height);
  font-size: 1.05rem;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden; /* verhindert horizontales Scrollen */
}

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

a { color: var(--color-primary); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--color-primary-dark); }

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.22;
  color: var(--color-text);
  margin: 0 0 0.6em;
}

p { margin: 0 0 1rem; }

.container {
  width: 100%;
  max-width: var(--content-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* ---------- 3. Zugaenglichkeit -------------------------------- */
.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 1000;
  background: var(--color-primary);
  color: #fff;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  transition: top var(--transition);
}
.skip-link:focus { top: 1rem; color: #fff; }

/* Deutlich sichtbarer Fokus fuer Tastaturnutzung */
a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Platzhalter-Markierungen (nur zur Redaktion sichtbar) */
.placeholder {
  background: #fff5d6;
  color: #6b5518;
  padding: 0.1em 0.35em;
  border-radius: 4px;
  font-size: 0.92em;
}

/* ---------- 4. Buttons ---------------------------------------- */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.2;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  min-height: 44px; /* ausreichende Touch-Groesse */
  transition: background var(--transition), color var(--transition),
              border-color var(--transition), transform var(--transition);
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover { background: var(--color-primary-dark); color: #fff; }
.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-border);
}
.btn-secondary:hover { border-color: var(--color-primary); background: var(--color-bg-secondary); }

/* ---------- 5. Kopfbereich / Navigation ----------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 245, 240, 0.92);
  backdrop-filter: saturate(120%) blur(6px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 72px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--color-text);
}
.brand-logo { width: 44px; height: 44px; border-radius: 50%; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}
.brand-tagline {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 600;
}

.main-nav { display: flex; align-items: center; }
.nav-menu {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 1.4rem;
  margin: 0;
  padding: 0;
}
.nav-menu a {
  text-decoration: none;
  color: var(--color-text);
  font-size: 0.98rem;
  padding: 0.4rem 0;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}
.nav-menu a:not(.nav-cta):hover { color: var(--color-primary); border-bottom-color: var(--color-accent); }
.nav-cta { padding: 0.6rem 1.15rem; }
.nav-cta:hover { border-bottom-color: transparent; }

/* Hamburger-Schaltflaeche (nur mobil sichtbar) */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}
.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  margin-inline: auto;
  background: var(--color-text);
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 6. Hero ------------------------------------------- */
.hero { padding: clamp(3rem, 6vw, 5.5rem) 0; }
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  color: var(--color-accent);
  margin-bottom: 1rem;
  font-weight: 600;
}
.hero-title {
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  margin-bottom: 1.1rem;
}
.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  max-width: 34rem;
  color: #33403a;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.8rem;
}
.hero-visual {
  display: flex;
  justify-content: center;
}
.hero-visual svg { width: 100%; max-width: 380px; height: auto; }

/* ---------- 7. Vertrauensleiste ------------------------------- */
.trust-strip {
  background: var(--color-primary);
  color: #fff;
}
.trust-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1rem 1.6rem;
  padding-block: 1.1rem;
  text-align: center;
}
.trust-item { font-size: 0.98rem; font-weight: 500; }
.trust-sep {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* ---------- 8. Abschnitte ------------------------------------- */
.section { padding-block: var(--space-section); }
.section-alt { background: var(--color-bg-secondary); }
.section-head { max-width: 46rem; margin-bottom: 3rem; }
.section-head h2 { font-size: clamp(1.7rem, 3.5vw, 2.4rem); }
.section-intro { font-size: 1.1rem; color: #33403a; }
.subheading {
  font-size: 1.3rem;
  margin: 2.5rem 0 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

/* ---------- 9. Leistungskarten (Diagnostik) ------------------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.4rem;
}
.card {
  position: relative;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.9rem 1.7rem;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.section-alt .card { background: #fff; }
.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft);
  border-color: var(--color-accent);
}
.card-index {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  margin-bottom: 0.6rem;
}
.card h3 { font-size: 1.25rem; }
.card p { font-size: 0.98rem; margin-bottom: 0.8rem; }
.card p:last-child { margin-bottom: 0; }

/* ---------- 10. Forschung ------------------------------------- */
.research-lead { max-width: 46rem; font-size: 1.05rem; }
.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.2rem;
}
.research-item {
  border-left: 3px solid var(--color-accent);
  padding: 0.4rem 0 0.4rem 1.2rem;
}
.research-item h4 { font-size: 1.08rem; margin-bottom: 0.35em; }
.research-item p { font-size: 0.95rem; color: #33403a; margin: 0; }

/* ---------- 11. Ueber uns / Team ------------------------------ */
.about-grid {
  display: grid;
  grid-template-columns: 340px 1fr; /* Teamfoto bewusst klein gehalten */
  gap: clamp(1.6rem, 4vw, 3rem);
  align-items: start;
}
.about-photo { width: 100%; max-width: 340px; }
/* Teamfoto (Querformat, klein). Datei: assets/team.jpg */
.team-photo {
  width: 100%;
  aspect-ratio: 8 / 5;
  object-fit: cover;
  display: block;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}
.about-text h3 { font-size: 1.3rem; margin-bottom: 0.2em; }
.about-subhead { margin-top: 2rem; }
.team-role { color: var(--color-accent); font-weight: 600; font-size: 0.95rem; margin-bottom: 0.9rem; }
.about-text p { color: #33403a; }

/* ---------- 12. Ablauf ---------------------------------------- */
.process-list {
  list-style: none;
  counter-reset: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.6rem;
}
.process-step {
  position: relative;
  padding: 1.6rem 1.4rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}
.section-alt .process-step { background: #fff; }
.process-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  margin-bottom: 1rem;
}
.process-step h3 { font-size: 1.12rem; }
.process-step p { font-size: 0.96rem; color: #33403a; margin: 0; }

/* ---------- 13. Termin (telefonische Anfrage) ----------------- */
.booking-box {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: clamp(1.6rem, 4vw, 2.8rem);
  text-align: center;
}
.btn-lg { font-size: 1.12rem; padding: 1.05rem 2.2rem; }
.booking-fallback { font-size: 0.98rem; margin-top: 1.3rem; margin-bottom: 0; }

/* Telefonnummer-Reveal.
   Standard (ohne JS): sichtbar. Mit JS: erst eingeklappt, per Klick sanft geöffnet. */
.phone-reveal { margin-top: 1.4rem; }
.phone-label { font-size: 0.9rem; color: #55605a; margin: 0 0 0.3rem; }
.phone-number {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: clamp(1.7rem, 4vw, 2.2rem);
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: 0.02em;
}
.phone-number:hover { color: var(--color-primary-dark); }
.phone-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.9rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}
.phone-actions .btn { font-size: 0.92rem; padding: 0.6rem 1.1rem; min-height: 40px; }
.copy-confirm { color: var(--color-primary); font-weight: 600; font-size: 0.92rem; }

/* Nur wenn JavaScript aktiv ist (html.js): einklappen und animiert öffnen. */
.js .phone-reveal {
  max-height: 0;
  opacity: 0;
  margin-top: 0;
  overflow: hidden;
  transition: max-height 0.45s ease, opacity 0.4s ease, margin-top 0.45s ease;
}
.js .phone-reveal.is-open {
  max-height: 240px;
  opacity: 1;
  margin-top: 1.4rem;
}
.booking-note {
  margin-top: 1.2rem;
  font-size: 0.92rem;
  color: #55605a;
}

/* ---------- 14. Kontakt --------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.6rem;
}
.contact-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.9rem 1.7rem;
}
.contact-card h3 { font-size: 1.2rem; }
.contact-address { font-style: normal; line-height: 1.9; margin-bottom: 1rem; }
.contact-label { font-weight: 600; }
.contact-link { font-weight: 500; }
.contact-hint { font-size: 0.9rem; color: #55605a; margin-top: 1rem; margin-bottom: 0; }

/* ---------- 15. Fussbereich ----------------------------------- */
.site-footer {
  background: var(--color-text);
  color: #e7e9e6;
  padding-block: 3rem;
}
.footer-inner { display: grid; gap: 1rem; }
.footer-brand { display: flex; align-items: center; gap: 0.7rem; }
.footer-logo { width: 40px; height: 40px; border-radius: 50%; }
.site-footer .brand-name { color: #fff; }
.footer-address { font-style: normal; font-size: 0.95rem; line-height: 1.8; color: #c4c9c5; }
.footer-address a { color: #e7e9e6; }
.footer-nav { display: flex; gap: 1.4rem; }
.footer-nav a { color: #fff; text-decoration: none; border-bottom: 1px solid transparent; }
.footer-nav a:hover { border-bottom-color: var(--color-accent); }
.footer-copy { font-size: 0.85rem; color: #9aa19c; margin: 0; }

/* ---------- 16. Rechtliche Seiten (Impressum/Datenschutz) ----- */
.legal-main { padding-block: clamp(3rem, 6vw, 5rem); }
.legal-main h1 { font-size: clamp(1.9rem, 4vw, 2.6rem); margin-bottom: 1.5rem; }
.legal-main h2 { font-size: 1.35rem; margin-top: 2.4rem; }
.legal-main h3 { font-size: 1.1rem; margin-top: 1.6rem; }
.legal-main .container { max-width: 800px; }
.legal-back { display: inline-block; margin-bottom: 2rem; font-weight: 600; }
.legal-note {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-sm);
  padding: 1rem 1.2rem;
  font-size: 0.95rem;
}

/* ---------- 17. Animationen (dezent) -------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 600ms ease, transform 600ms ease;
}
.reveal.is-visible { opacity: 1; transform: none; }

/* Bewegungsreduzierung respektieren */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .js .phone-reveal { transition: none; }
}

/* ---------- 18. Responsives Verhalten ------------------------- */
@media (max-width: 860px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { order: -1; max-width: 320px; margin-inline: auto; }

  /* Ueber uns: Foto und Text untereinander */
  .about-grid { grid-template-columns: 1fr; }
  .about-photo { max-width: 360px; }

  /* Mobile Navigation */
  .nav-toggle { display: flex; }
  .nav-menu {
    position: fixed;
    top: 72px;
    right: 0;
    left: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 0.5rem 1.5rem 1.5rem;
    max-height: calc(100vh - 72px);
    overflow-y: auto;
    transform: translateY(-120%);
    transition: transform 260ms ease;
    box-shadow: var(--shadow-soft);
  }
  .nav-menu.is-open { transform: translateY(0); }
  .nav-menu li { border-bottom: 1px solid var(--color-border); }
  .nav-menu li:last-child { border-bottom: none; }
  .nav-menu a {
    display: block;
    padding: 0.95rem 0;
    font-size: 1.05rem;
  }
  .nav-menu a:not(.nav-cta):hover { border-bottom-color: transparent; }
  .nav-cta-item { margin-top: 0.9rem; }
  .nav-cta { text-align: center; }

  /* Verhindert Scrollen des Hintergrunds bei offenem Menue */
  body.nav-open { overflow: hidden; }
}

@media (prefers-reduced-motion: reduce) {
  .nav-menu { transition: none; }
}

@media (max-width: 480px) {
  :root { --space-section: 4rem; }
  .container { padding-inline: 1.2rem; }
  .hero-actions .btn { width: 100%; }
}