/* ============================================================
   Deutschtutoring – Design-System v2
   Reines CSS/Vanilla-JS, kein Build-Schritt noetig.
   ============================================================ */

:root {
  /* Marke */
  --dark-blue: #17334f;
  --blue: #1e4a73;
  --orange: #d97e1e;
  --orange-dark: #b8660f;
  --orange-light: #f7c98c;

  /* Neutrale Palette (fuer edlere Flaechen/Borders/Text) */
  --slate-50:  #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-500: #64748b;
  --slate-600: #334155;
  --slate-800: #1e293b;
  --slate-900: #0f172a;

  --white: #ffffff;
  --text: #1e2530;

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;

  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.10);
  --shadow-lg: 0 20px 48px rgba(15, 23, 42, 0.16);

  --max-width: 1200px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--slate-50);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font);
  color: var(--dark-blue);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-top: 0;
  font-weight: 800;
}

h2 { font-size: clamp(1.7rem, 2.4vw, 2.4rem); }
h3 { font-size: 1.25rem; }

p { color: var(--slate-600); }

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

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

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

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--orange);
  background: rgba(217, 126, 30, 0.1);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--dark-blue);
  box-shadow: 0 2px 12px rgba(15, 23, 42, 0.15);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--white);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.main-nav ul {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
}

.main-nav a {
  color: rgba(255, 255, 255, 0.85);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 8px 14px;
  border-radius: 999px;
  transition: background 0.2s ease, color 0.2s ease;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
}

.main-nav .btn { margin-left: 6px; }

.lang-switch {
  display: inline-block;
  color: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.35);
  padding: 5px 12px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.03em;
}
.lang-switch:hover {
  background: rgba(255, 255, 255, 0.14);
  color: var(--white);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2.5px;
  margin: 5px 0;
  background: var(--white);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.96rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, color 0.18s ease;
}

.btn-primary {
  background: var(--orange);
  color: var(--white);
  box-shadow: 0 6px 18px rgba(217, 126, 30, 0.35);
}
.btn-primary:hover {
  background: var(--orange-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(217, 126, 30, 0.45);
}

.btn-outline {
  background: transparent;
  border-color: var(--dark-blue);
  color: var(--dark-blue);
}
.btn-outline:hover {
  background: var(--dark-blue);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-ghost-light {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.3);
  color: var(--white);
}
.btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.22);
  transform: translateY(-2px);
}

.btn-sm { padding: 9px 18px; font-size: 0.85rem; }

/* ---------- Sections ---------- */
section { padding: 88px 0; position: relative; overflow: clip; }
.section-tight { padding: 56px 0; }
.section-alt { background: var(--white); }

.section-dark {
  background: linear-gradient(160deg, var(--dark-blue), var(--blue) 70%);
  color: var(--white);
}
.section-dark h1, .section-dark h2, .section-dark h3 { color: var(--white); }
.section-dark p { color: rgba(255, 255, 255, 0.78); }
.section-dark .eyebrow { background: rgba(255, 255, 255, 0.14); color: var(--orange-light); }

.text-center { text-align: center; }
.narrow { max-width: 760px; margin-left: auto; margin-right: auto; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding-top: 96px;
  padding-bottom: 64px;
}

.hero-glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(420px 280px at 12% 15%, rgba(217, 126, 30, 0.10), transparent 70%),
    radial-gradient(480px 320px at 88% 5%, rgba(30, 74, 115, 0.12), transparent 70%);
  z-index: 0;
  pointer-events: none;
}

.hero .container { position: relative; z-index: 1; }

.two-col {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.hero h1 { font-size: clamp(2.1rem, 4vw, 3.1rem); margin-bottom: 20px; }
.hero p.lead { font-size: 1.1rem; color: var(--slate-600); }

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.trust-bar {
  margin-top: 40px;
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--slate-600);
}

.trust-item svg { flex-shrink: 0; color: var(--orange); }

.hero-art {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--slate-200);
}

/* ---------- Bento Grid ---------- */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: minmax(150px, auto);
  gap: 20px;
  margin-top: 48px;
}

.bento-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 30px;
  border: 1px solid var(--slate-200);
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 10px;
}

.bento-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--slate-300);
}

.bento-card .icon-badge { align-self: flex-start; margin-bottom: auto; }

.bento-card.span-2 { grid-column: span 2; }
.bento-card.span-2-row { grid-row: span 2; }

.icon-badge {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(217, 126, 30, 0.12);
  color: var(--orange);
}

/* ---------- Steps ("So funktioniert's") ---------- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
  counter-reset: step;
}

.step-card { position: relative; padding: 8px; }

.step-number {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--orange);
  color: var(--white);
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.05rem;
}

.step-card h3 { margin-bottom: 6px; font-size: 1.05rem; }
.step-card p { font-size: 0.92rem; }

/* ---------- Preis-Karten ---------- */
.price-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.price-card {
  background: var(--white);
  color: var(--text);
  border-radius: var(--radius-lg);
  padding: 34px;
  height: 100%;
  border: 1px solid var(--slate-200);
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  position: relative;
}

.price-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.price-card.featured {
  border-color: var(--orange);
  box-shadow: 0 12px 30px rgba(217, 126, 30, 0.18);
}

.price-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--orange);
  color: var(--white);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 999px;
  white-space: nowrap;
}

.price-card h3 { color: var(--dark-blue); }
.price-card ul { padding-left: 20px; margin: 16px 0; }
.price-card li { margin-bottom: 9px; color: var(--slate-600); }

.price-highlight {
  font-weight: 800;
  color: var(--dark-blue);
}

/* ---------- Testimonials ---------- */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.testimonial-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid var(--slate-200);
  box-shadow: var(--shadow-sm);
}

.testimonial-stars { color: var(--orange); font-size: 1rem; margin-bottom: 12px; letter-spacing: 2px; }

.testimonial-quote {
  font-size: 0.96rem;
  color: var(--slate-800);
  font-style: italic;
}

.testimonial-author {
  margin-top: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--slate-600);
}

.avatar-dot {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--slate-200);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--dark-blue);
  font-weight: 800;
  font-size: 0.8rem;
}

/* ---------- Team ---------- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 28px;
}

.team-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
  border: 1px solid var(--slate-200);
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.team-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }

.team-photo {
  width: 132px;
  height: 132px;
  border-radius: 50%;
  margin: 0 auto 18px;
  overflow: hidden;
  background: var(--slate-100);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 3px solid var(--slate-100);
}

/* ---------- FAQ Akkordeon ---------- */
.faq-list { max-width: 780px; margin: 48px auto 0; }

.faq-item {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 20px 24px;
  font-weight: 700;
  font-size: 1rem;
  color: var(--dark-blue);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.faq-question .plus {
  font-size: 1.3rem;
  color: var(--orange);
  transition: transform 0.25s ease;
  flex-shrink: 0;
}

.faq-item.open .plus { transform: rotate(45deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 24px;
}

.faq-item.open .faq-answer {
  padding: 0 24px 20px;
}

.faq-answer p { margin: 0; font-size: 0.94rem; }

/* ---------- CTA Banner ---------- */
.cta-banner {
  background: linear-gradient(135deg, var(--dark-blue), var(--blue));
  border-radius: var(--radius-lg);
  padding: 56px;
  color: var(--white);
  text-align: center;
  box-shadow: var(--shadow-lg);
}
.cta-banner h2 { color: var(--white); }
.cta-banner p { color: rgba(255,255,255,0.8); }

/* ---------- Floating CTA ---------- */
.floating-cta {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 90;
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.floating-cta.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }

/* ---------- Kontakt ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 40px;
}

.contact-info-card, .form-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 34px;
  border: 1px solid var(--slate-200);
  box-shadow: var(--shadow-sm);
}

.form-card label {
  display: block;
  font-weight: 700;
  font-size: 0.88rem;
  margin: 16px 0 6px;
  color: var(--slate-800);
}

.form-card input,
.form-card select,
.form-card textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: inherit;
  background: var(--slate-50);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-card input:focus,
.form-card select:focus,
.form-card textarea:focus {
  outline: none;
  border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(217, 126, 30, 0.15);
  background: var(--white);
}

.form-card textarea { resize: vertical; min-height: 120px; }

.form-note { font-size: 0.82rem; color: var(--slate-500); margin-top: 10px; }

.contact-list { list-style: none; padding: 0; margin: 20px 0 0; }
.contact-list li {
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--slate-600);
}
.contact-list strong { color: var(--dark-blue); }

/* ---------- Scroll Reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--slate-900);
  color: rgba(255, 255, 255, 0.7);
  padding: 40px 0;
  text-align: center;
  font-size: 0.88rem;
}
.site-footer a { color: var(--orange-light); }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .two-col, .contact-grid { grid-template-columns: 1fr; }
  .bento-grid { grid-template-columns: repeat(2, 1fr); }
  .bento-card.span-2 { grid-column: span 2; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .price-grid, .testimonial-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  section { padding: 60px 0; }
  .bento-grid { grid-template-columns: 1fr; }
  .bento-card.span-2 { grid-column: span 1; }
  .steps-grid { grid-template-columns: 1fr; }

  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--dark-blue);
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.2);
    display: none;
  }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; align-items: stretch; gap: 0; padding: 10px 24px 20px; }
  .main-nav li { padding: 6px 0; }
  .main-nav a { display: block; }
  .main-nav .btn { margin: 10px 0 0; display: block; text-align: center; }
  .nav-toggle { display: block; }
  .site-header .container { position: relative; }
  .cta-banner { padding: 36px 24px; }
}