/* ============================================================
   WILIEPRO Schulungen – Design System
   Farben: #424242 | #AB96FF | #FDE92D | #7968CB
   Font: Helvetica Neue Light
   ============================================================ */

/* --- CSS Custom Properties --- */
:root {
  --color-dark:    #424242;
  --color-primary: #AB96FF;
  --color-cta:     #FDE92D;
  --color-accent:  #7968CB;
  --color-white:   #ffffff;
  --color-light:   #f7f7f9;
  --color-border:  #e0ddf7;
  --color-error:   #e53e3e;
  --color-success: #38a169;

  --font-main: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-bold: 700;

  --radius: 8px;
  --radius-lg: 16px;
  --shadow: 0 2px 16px rgba(121, 104, 203, 0.1);
  --shadow-hover: 0 6px 32px rgba(121, 104, 203, 0.2);
  --transition: 0.25s ease;

  --max-width: 1200px;
  --section-padding: 80px 24px;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-main);
  font-weight: var(--font-weight-light);
  color: var(--color-dark);
  background: var(--color-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* --- Typography --- */
h1, h2, h3, h4, h5 {
  font-weight: var(--font-weight-light);
  line-height: 1.25;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.2rem; }
p  { font-size: 1rem; max-width: 70ch; }

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

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-family: var(--font-main);
  font-weight: var(--font-weight-normal);
  font-size: 1rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  text-align: center;
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-cta);
  color: var(--color-dark);
  border-color: var(--color-cta);
}
.btn-primary:hover {
  background: #f5e000;
  border-color: #f5e000;
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.btn-secondary {
  background: transparent;
  color: var(--color-dark);
  border-color: var(--color-dark);
}
.btn-secondary:hover {
  background: var(--color-dark);
  color: var(--color-white);
  transform: translateY(-2px);
}
.btn-outline-light {
  background: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}
.btn-outline-light:hover {
  background: var(--color-white);
  color: var(--color-dark);
}

/* --- Header / Navigation --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: 16px 0;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  height: 36px;
  width: auto;
}
.logo-text {
  font-size: 1.4rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-dark);
  letter-spacing: -0.02em;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.main-nav a {
  font-size: 0.95rem;
  color: var(--color-dark);
  opacity: 0.75;
  transition: opacity var(--transition);
}
.main-nav a:hover { opacity: 1; }
.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}
.lang-switcher {
  display: flex;
  gap: 4px;
  font-size: 0.85rem;
}
.lang-switcher button {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 4px 8px;
  cursor: pointer;
  font-family: var(--font-main);
  color: var(--color-dark);
  transition: all var(--transition);
}
.lang-switcher button.active,
.lang-switcher button:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-dark);
}
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-dark);
  transition: all var(--transition);
}

/* --- Hero Section --- */
.hero {
  background: linear-gradient(135deg, var(--color-dark) 0%, #2a2a2a 100%);
  color: var(--color-white);
  padding: 100px 24px 80px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(171,150,255,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.hero-content {
  max-width: var(--max-width);
  margin: 0 auto;
}
.hero-badge {
  display: inline-block;
  background: var(--color-primary);
  color: var(--color-dark);
  font-size: 0.8rem;
  font-weight: var(--font-weight-normal);
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 20px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.hero h1 { color: var(--color-white); margin-bottom: 20px; }
.hero h1 span { color: var(--color-primary); }
.hero p {
  font-size: 1.2rem;
  opacity: 0.85;
  margin-bottom: 36px;
  max-width: 600px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-meta {
  display: flex;
  gap: 32px;
  margin-top: 56px;
  flex-wrap: wrap;
}
.hero-meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.hero-meta-item strong {
  font-size: 1.8rem;
  color: var(--color-cta);
  font-weight: var(--font-weight-light);
}
.hero-meta-item span { font-size: 0.85rem; opacity: 0.7; }

/* --- Section Styles --- */
section { padding: var(--section-padding); }
.section-header { margin-bottom: 48px; }
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 12px;
}
.section-header h2 { margin-bottom: 12px; }
.section-header p { color: #666; }
.section-bg-light { background: var(--color-light); }
.section-bg-dark  { background: var(--color-dark); color: var(--color-white); }
.section-bg-dark .section-label { color: var(--color-primary); }
.section-bg-dark p { color: rgba(255,255,255,0.75); }

/* --- Schulungs-Karten --- */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.course-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
  overflow: hidden;
}
.course-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--color-primary);
  transition: width var(--transition);
}
.course-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: var(--color-primary);
}
.course-card:hover::before { width: 6px; background: var(--color-cta); }
.course-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}
.course-card h3 { font-size: 1.25rem; }
.course-card p { font-size: 0.95rem; color: #555; flex: 1; }
.course-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.tag {
  background: var(--color-light);
  color: var(--color-accent);
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 20px;
  border: 1px solid var(--color-border);
}
.course-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-accent);
  font-size: 0.95rem;
  font-weight: var(--font-weight-normal);
  transition: gap var(--transition);
}
.course-link:hover { gap: 10px; }

/* --- USP / Why Section --- */
.usp-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
}
.usp-item {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.usp-icon {
  font-size: 2rem;
  width: 56px;
  height: 56px;
  background: rgba(171,150,255,0.15);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
}
.usp-item h4 { font-size: 1.1rem; color: var(--color-white); }
.usp-item p  { font-size: 0.9rem; }

/* --- Kontaktformular --- */
.contact-section {
  background: var(--color-light);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 64px;
  align-items: start;
}
.contact-info h2 { margin-bottom: 16px; }
.contact-info p  { color: #555; margin-bottom: 24px; }
.contact-detail {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 0.95rem;
}
.contact-detail .icon {
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}
.contact-form {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow);
}
.form-group { margin-bottom: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
label {
  display: block;
  font-size: 0.85rem;
  font-weight: var(--font-weight-normal);
  color: var(--color-dark);
  margin-bottom: 6px;
}
label .required { color: var(--color-error); margin-left: 2px; }
input[type="text"],
input[type="email"],
select,
textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-main);
  font-weight: var(--font-weight-light);
  font-size: 0.95rem;
  color: var(--color-dark);
  background: var(--color-white);
  transition: border-color var(--transition), box-shadow var(--transition);
  -webkit-appearance: none;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(171,150,255,0.2);
}
textarea { resize: vertical; min-height: 120px; }
.dsgvo-check {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.85rem;
  color: #555;
  margin-top: 8px;
}
.dsgvo-check input[type="checkbox"] {
  width: 18px;
  height: 18px;
  min-width: 18px;
  cursor: pointer;
  accent-color: var(--color-accent);
}
.dsgvo-check a { color: var(--color-accent); text-decoration: underline; }
.form-message {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  margin-top: 16px;
  display: none;
}
.form-message.success { background: #f0fff4; color: var(--color-success); border: 1px solid var(--color-success); display: block; }
.form-message.error   { background: #fff5f5; color: var(--color-error);   border: 1px solid var(--color-error);   display: block; }

/* --- Schulungs-Detailseite --- */
.detail-hero {
  background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-accent) 100%);
  color: var(--color-white);
  padding: 80px 24px;
}
.detail-hero h1 span { color: var(--color-cta); }
.breadcrumb {
  font-size: 0.85rem;
  opacity: 0.7;
  margin-bottom: 16px;
  display: flex;
  gap: 8px;
  align-items: center;
}
.breadcrumb a { color: var(--color-primary); }
.detail-meta-bar {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 32px;
}
.meta-chip {
  background: rgba(255,255,255,0.15);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 8px;
  backdrop-filter: blur(4px);
}
.detail-content {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 48px;
  align-items: start;
  padding: 64px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}
.detail-main section { padding: 0 0 48px; }
.detail-main h2 { margin-bottom: 20px; font-size: 1.5rem; }
.check-list { display: flex; flex-direction: column; gap: 10px; }
.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.95rem;
}
.check-list li::before {
  content: '✓';
  color: var(--color-accent);
  font-weight: bold;
  flex-shrink: 0;
  margin-top: 2px;
}
.detail-sidebar {
  position: sticky;
  top: 100px;
}
.sidebar-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow);
}
.sidebar-price {
  font-size: 2.5rem;
  font-weight: var(--font-weight-light);
  color: var(--color-accent);
  margin-bottom: 4px;
}
.sidebar-price-note { font-size: 0.8rem; color: #888; margin-bottom: 24px; }
.sidebar-details { display: flex; flex-direction: column; gap: 12px; margin-bottom: 24px; }
.sidebar-detail-item {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}
.sidebar-detail-item span:first-child { color: #888; }
.sidebar-detail-item span:last-child  { font-weight: var(--font-weight-normal); }

/* --- Level Badge --- */
.level-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  padding: 4px 12px;
  border-radius: 20px;
  font-weight: var(--font-weight-normal);
}
.level-beginner     { background: #e6f4ea; color: #2d6a4f; }
.level-intermediate { background: #fff3cd; color: #856404; }
.level-advanced     { background: #fce8e6; color: #c62828; }

/* --- Footer --- */
.site-footer {
  background: var(--color-dark);
  color: rgba(255,255,255,0.8);
  padding: 64px 24px 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-logo { height: 28px; margin-bottom: 16px; filter: invert(1); }
.footer-desc { font-size: 0.9rem; max-width: 280px; }
.footer-col h5 {
  color: var(--color-white);
  font-size: 0.9rem;
  font-weight: var(--font-weight-normal);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 8px; }
.footer-col ul li a {
  font-size: 0.9rem;
  opacity: 0.7;
  transition: opacity var(--transition);
}
.footer-col ul li a:hover { opacity: 1; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
  opacity: 0.6;
}
.social-links { display: flex; gap: 12px; }
.social-links a {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  transition: background var(--transition);
  opacity: 1;
}
.social-links a:hover { background: var(--color-primary); }

/* --- Mobile Navigation --- */
@media (max-width: 768px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: 24px;
    border-bottom: 1px solid var(--color-border);
    gap: 20px;
    box-shadow: var(--shadow);
  }
  .main-nav.open { display: flex; }
  .hamburger { display: flex; }
  .header-actions .btn { display: none; }
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .form-row { grid-template-columns: 1fr; }
  .detail-content { grid-template-columns: 1fr; }
  .detail-sidebar { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-meta { gap: 20px; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .courses-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  :root { --section-padding: 48px 20px; }
}

/* --- Utility --- */
.text-center { text-align: center; }
.text-center p { margin: 0 auto; }
.mt-4 { margin-top: 16px; }
.mt-8 { margin-top: 32px; }
.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }