/* =====================
   SEO Meisterkurs Corporate CSS
   Professional Corporate Style – Flexbox Only
   ===================== */

:root {
  --color-primary: #1A3A5D;
  --color-secondary: #059669;
  --color-accent: #F1F5F9;
  --color-bg: #fff;
  --color-text: #1A3A5D;
  --color-muted: #6B7280;
  --color-border: #E5E7EB;
  --color-shadow: rgba(26,58,93,0.08);
  --color-shadow-hover: rgba(26,58,93,0.14);
  --color-testimonial-bg: #F8FAFC;
  --color-footer-bg: #1A3A5D;
  --color-footer-text: #F1F5F9;
  --color-btn-hover: #17406e;
  --color-btn-active: #0f2237;
  --color-error: #DC2626;
  --transition: 0.2s cubic-bezier(.4,0,.2,1);
  --radius: 8px;
  --radius-lg: 16px;
  --shadow: 0 2px 8px var(--color-shadow);
  --shadow-hover: 0 4px 16px var(--color-shadow-hover);
  --font-display: 'Montserrat', Arial, Helvetica, sans-serif;
  --font-body: 'Roboto', Arial, Helvetica, sans-serif;
}

html {
  box-sizing: border-box;
  font-size: 16px;
  scroll-behavior: smooth;
}
*, *:before, *:after {
  box-sizing: inherit;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  margin: 0;
  padding: 0;
  min-height: 100vh;
  line-height: 1.6;
  font-size: 1rem;
  letter-spacing: 0.01em;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--color-primary);
  margin-top: 0;
  margin-bottom: 0.7em;
  font-weight: 700;
  line-height: 1.2;
}
h1 { font-size: 2.2rem; }
h2 { font-size: 1.6rem; }
h3 { font-size: 1.2rem; }
h4, h5, h6 { font-size: 1rem; }

p, ul, ol {
  margin-top: 0;
  margin-bottom: 1.2em;
  color: var(--color-text);
}

ul, ol {
  padding-left: 1.5em;
}

strong {
  font-weight: 600;
  color: var(--color-primary);
}

a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover, a:focus {
  color: var(--color-primary);
  text-decoration: underline;
}

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

/* =====================
   Layout Containers
   ===================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

.content-wrapper {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.section {
  margin-bottom: 60px;
  padding: 40px 20px;
  background: var(--color-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

@media (max-width: 768px) {
  .section {
    padding: 24px 8px;
    margin-bottom: 36px;
  }
  .container {
    padding-left: 8px;
    padding-right: 8px;
  }
}

/* =====================
   Header & Navigation
   ===================== */
header {
  width: 100%;
  background: var(--color-bg);
  box-shadow: 0 2px 8px var(--color-shadow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 0;
  position: sticky;
  top: 0;
  z-index: 100;
  min-height: 72px;
}
.logo {
  display: flex;
  align-items: center;
  height: 72px;
  padding-left: 24px;
}
.logo img {
  height: 40px;
  width: auto;
}
header nav {
  display: flex;
  align-items: center;
  gap: 24px;
}
header nav a {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--color-primary);
  padding: 8px 12px;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
  font-size: 1rem;
}
header nav a:hover, header nav a:focus {
  background: var(--color-accent);
  color: var(--color-secondary);
}
header nav .cta-primary {
  background: var(--color-secondary);
  color: #fff;
  font-weight: 700;
  padding: 10px 22px;
  border-radius: var(--radius-lg);
  margin-left: 12px;
  box-shadow: 0 2px 8px var(--color-shadow);
  transition: background var(--transition), box-shadow var(--transition);
}
header nav .cta-primary:hover, header nav .cta-primary:focus {
  background: var(--color-btn-hover);
  color: #fff;
  box-shadow: var(--shadow-hover);
}

/* Hamburger Button */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--color-primary);
  cursor: pointer;
  margin-right: 24px;
  transition: color var(--transition);
}
.mobile-menu-toggle:focus {
  outline: 2px solid var(--color-secondary);
}

@media (max-width: 1024px) {
  header nav {
    display: none;
  }
  .mobile-menu-toggle {
    display: block;
  }
}

/* =====================
   Mobile Menu Overlay
   ===================== */
.mobile-menu {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(26,58,93,0.98);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  padding: 0;
  transform: translateX(-100%);
  transition: transform 0.35s cubic-bezier(.4,0,.2,1);
  opacity: 0;
  pointer-events: none;
}
.mobile-menu.open {
  transform: translateX(0);
  opacity: 1;
  pointer-events: auto;
}
.mobile-menu-close {
  background: none;
  border: none;
  color: #fff;
  font-size: 2.2rem;
  align-self: flex-end;
  margin: 24px 24px 0 0;
  cursor: pointer;
  transition: color var(--transition);
}
.mobile-menu-close:hover, .mobile-menu-close:focus {
  color: var(--color-secondary);
}
.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 24px;
  width: 100%;
  margin-top: 32px;
  padding-left: 32px;
}
.mobile-nav a {
  color: #fff;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 500;
  padding: 12px 0;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
}
.mobile-nav a:hover, .mobile-nav a:focus {
  background: var(--color-secondary);
  color: #fff;
}

@media (min-width: 1025px) {
  .mobile-menu {
    display: none !important;
  }
}

/* =====================
   Main Content & Sections
   ===================== */
main {
  width: 100%;
  margin: 0 auto;
  padding-top: 32px;
  padding-bottom: 32px;
}

.cta-banner {
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow);
  text-align: center;
}
.cta-banner h2, .cta-banner p {
  color: #fff;
}
.cta-banner .cta-primary {
  margin-top: 12px;
}

/* =====================
   Cards & Grids
   ===================== */
.card-container {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.card {
  background: var(--color-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 22px;
  margin-bottom: 20px;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 260px;
  flex: 1 1 320px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.card:hover, .card:focus-within {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px) scale(1.01);
}

.content-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: space-between;
}

.text-image-section {
  display: flex;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
}
@media (max-width: 768px) {
  .text-image-section {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
  }
}

.features-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: flex-start;
}
.features-grid > div {
  background: var(--color-accent);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px 18px;
  flex: 1 1 260px;
  min-width: 220px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 15px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.features-grid > div:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px) scale(1.01);
}

.feature-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 15px;
}

/* =====================
   Testimonials
   ===================== */
.testimonial-slider, .testimonial-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: flex-start;
}
.testimonial-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
  padding: 20px;
  background: var(--color-testimonial-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  min-width: 260px;
  flex: 1 1 320px;
  color: var(--color-primary);
  font-size: 1.05rem;
  margin-bottom: 20px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.testimonial-card strong {
  color: var(--color-secondary);
  font-weight: 700;
}
.testimonial-card:hover, .testimonial-card:focus-within {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px) scale(1.01);
}

@media (max-width: 768px) {
  .testimonial-slider, .testimonial-grid {
    flex-direction: column;
    gap: 16px;
  }
}

/* =====================
   Blog Post List
   ===================== */
.blog-post-list {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 24px;
}
.blog-post-list article {
  background: var(--color-accent);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px 16px;
  flex: 1 1 300px;
  min-width: 220px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.blog-post-list article:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px) scale(1.01);
}

.categories-filter {
  margin-bottom: 20px;
  color: var(--color-muted);
  font-size: 1rem;
}

.featured-article {
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius);
  padding: 20px 16px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}
.featured-article h3 {
  color: #fff;
}

/* =====================
   Buttons & CTAs
   ===================== */
.cta-primary {
  display: inline-block;
  background: var(--color-secondary);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  padding: 12px 32px;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
  text-align: center;
  margin-top: 8px;
}
.cta-primary:hover, .cta-primary:focus {
  background: var(--color-btn-hover);
  color: #fff;
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px) scale(1.01);
}

.cta-secondary {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-primary);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  padding: 10px 24px;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: background var(--transition), color var(--transition);
}
.cta-secondary:hover, .cta-secondary:focus {
  background: var(--color-secondary);
  color: #fff;
}

/* =====================
   Icons (Simple SVG Placeholders)
   ===================== */
.icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
  color: #fff;
  font-size: 1.4rem;
}
.icon-rocket::before { content: '\1F680'; }
.icon-user::before { content: '\1F464'; }
.icon-certificate::before { content: '\1F3C6'; }
.icon-basics::before { content: '\1F4D6'; }
.icon-advanced::before { content: '\1F4C8'; }
.icon-local::before { content: '\1F4CD'; }
.icon-technical::before { content: '\2699'; }
.icon-content::before { content: '\270D'; }
.icon-link::before { content: '\1F517'; }

/* =====================
   Footer
   ===================== */
footer {
  background: var(--color-footer-bg);
  color: var(--color-footer-text);
  padding: 40px 0 0 0;
  margin-top: 60px;
}
footer .container {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 32px;
}
footer nav {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
footer nav a {
  color: var(--color-footer-text);
  font-family: var(--font-display);
  font-size: 1rem;
  transition: color var(--transition);
}
footer nav a:hover, footer nav a:focus {
  color: var(--color-secondary);
}
.footer-contact {
  font-size: 0.98rem;
  color: var(--color-footer-text);
  line-height: 1.7;
}
@media (max-width: 768px) {
  footer .container {
    flex-direction: column;
    gap: 24px;
    align-items: flex-start;
  }
}

/* =====================
   Cookie Consent Banner
   ===================== */
.cookie-banner {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  background: #fff;
  color: var(--color-primary);
  box-shadow: 0 -2px 16px var(--color-shadow);
  z-index: 99999;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 32px;
  font-size: 1rem;
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: var(--radius-lg);
  animation: cookieBannerIn 0.5s cubic-bezier(.4,0,.2,1);
}
@keyframes cookieBannerIn {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
.cookie-banner__text {
  flex: 1 1 320px;
}
.cookie-banner__actions {
  display: flex;
  flex-direction: row;
  gap: 16px;
}
.cookie-btn {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  border: none;
  border-radius: var(--radius);
  padding: 10px 22px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
  box-shadow: var(--shadow);
}
.cookie-btn.accept {
  background: var(--color-secondary);
  color: #fff;
}
.cookie-btn.accept:hover, .cookie-btn.accept:focus {
  background: var(--color-btn-hover);
}
.cookie-btn.reject {
  background: #fff;
  color: var(--color-error);
  border: 1.5px solid var(--color-error);
}
.cookie-btn.reject:hover, .cookie-btn.reject:focus {
  background: var(--color-error);
  color: #fff;
}
.cookie-btn.settings {
  background: var(--color-accent);
  color: var(--color-primary);
}
.cookie-btn.settings:hover, .cookie-btn.settings:focus {
  background: var(--color-secondary);
  color: #fff;
}
@media (max-width: 768px) {
  .cookie-banner {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding: 18px 10px;
    font-size: 0.98rem;
  }
  .cookie-banner__actions {
    width: 100%;
    flex-direction: column;
    gap: 10px;
  }
}

/* Cookie Modal */
.cookie-modal-overlay {
  position: fixed;
  left: 0; right: 0; top: 0; bottom: 0;
  background: rgba(26,58,93,0.7);
  z-index: 100000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s cubic-bezier(.4,0,.2,1);
}
.cookie-modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}
.cookie-modal {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-hover);
  padding: 36px 28px 28px 28px;
  max-width: 420px;
  width: 90vw;
  display: flex;
  flex-direction: column;
  gap: 22px;
  animation: cookieModalIn 0.4s cubic-bezier(.4,0,.2,1);
}
@keyframes cookieModalIn {
  from { transform: translateY(40px) scale(0.98); opacity: 0; }
  to { transform: translateY(0) scale(1); opacity: 1; }
}
.cookie-modal h2 {
  font-size: 1.3rem;
  margin-bottom: 0.5em;
}
.cookie-category {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.cookie-category label {
  font-weight: 500;
  color: var(--color-primary);
}
.cookie-category input[type="checkbox"] {
  accent-color: var(--color-secondary);
  width: 18px;
  height: 18px;
}
.cookie-category .always-on {
  color: var(--color-muted);
  font-size: 0.95em;
  margin-left: 6px;
}
.cookie-modal-actions {
  display: flex;
  flex-direction: row;
  gap: 16px;
  margin-top: 10px;
}
@media (max-width: 480px) {
  .cookie-modal {
    padding: 18px 6px 16px 6px;
    max-width: 98vw;
  }
  .cookie-modal-actions {
    flex-direction: column;
    gap: 10px;
  }
}

/* =====================
   Miscellaneous
   ===================== */
.before-after-cases, .video-testimonials, .project-screenshots, .certificate-photos {
  background: var(--color-accent);
  border-radius: var(--radius);
  padding: 18px 14px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}

.contact-details {
  background: var(--color-accent);
  border-radius: var(--radius);
  padding: 18px 14px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
  font-size: 1.05rem;
}

.instructor-highlight {
  background: var(--color-accent);
  border-radius: var(--radius);
  padding: 14px 12px;
  margin-top: 10px;
  box-shadow: var(--shadow);
  font-size: 1.05rem;
}

/* =====================
   Responsive Utilities
   ===================== */
@media (max-width: 1024px) {
  .features-grid, .card-container, .content-grid, .testimonial-slider, .testimonial-grid, .blog-post-list {
    flex-wrap: wrap;
    gap: 16px;
  }
  .features-grid > div, .card, .testimonial-card, .blog-post-list article {
    min-width: 180px;
    flex: 1 1 100%;
  }
}
@media (max-width: 600px) {
  h1 { font-size: 1.4rem; }
  h2 { font-size: 1.1rem; }
  .cta-banner {
    padding: 18px 8px;
  }
}

/* =====================
   Accessibility & Focus
   ===================== */
a, button, .cta-primary, .cta-secondary, .cookie-btn {
  outline: none;
}
a:focus-visible, button:focus-visible, .cta-primary:focus-visible, .cta-secondary:focus-visible, .cookie-btn:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

/* =====================
   Hide elements visually (for accessibility)
   ===================== */
.visually-hidden {
  position: absolute !important;
  height: 1px; width: 1px;
  overflow: hidden;
  clip: rect(1px, 1px, 1px, 1px);
  white-space: nowrap;
}

/* =====================
   Utility Classes
   ===================== */
.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.mt-2 { margin-top: 12px !important; }
.mb-2 { margin-bottom: 12px !important; }

/* =====================
   Print Styles
   ===================== */
@media print {
  header, footer, .cookie-banner, .mobile-menu { display: none !important; }
  body { background: #fff !important; color: #000 !important; }
}