/* customer_portal/public/css/marketing.css
   Shared styles for all public marketing pages.
   Page-specific overrides live in /leistungen/leistungen.css, etc. */

:root {
  --mbit-bg: #ffffff;
  --mbit-fg: #1a1a1a;
  --mbit-muted: #555555;
  --mbit-accent: #0044aa;        /* WCAG AAA on white: 8.59:1 */
  --mbit-accent-hover: #003388;
  --mbit-border: #e0e0e0;
  --mbit-card-bg: #fafafa;
  --mbit-radius: 0.5rem;
  --mbit-spacing: 1rem;
  --mbit-maxw: 70rem;
  --mbit-font: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui,
               "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

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

/* Skip-to-content for keyboard users */
.skip-link {
  position: absolute;
  left: -9999px;
}
.skip-link:focus {
  position: static;
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--mbit-accent);
  color: white;
}

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

:focus-visible {
  outline: 3px solid var(--mbit-accent);
  outline-offset: 2px;
}

/* --- Header --- */
.marketing-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--mbit-bg);
  border-bottom: 1px solid var(--mbit-border);
}
.marketing-header__inner {
  max-width: var(--mbit-maxw);
  margin: 0 auto;
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.marketing-brand {
  color: var(--mbit-fg);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.marketing-brand__name { font-weight: 600; }
.marketing-brand__tagline { font-size: 0.85rem; color: var(--mbit-muted); }

.marketing-nav { display: flex; gap: 1.5rem; flex-wrap: wrap; align-items: center; }
.marketing-nav a { color: var(--mbit-fg); text-decoration: none; }
.marketing-nav a:hover { color: var(--mbit-accent); text-decoration: underline; }
.marketing-nav__cta {
  background: var(--mbit-accent);
  color: white !important;
  padding: 0.5rem 1rem;
  border-radius: var(--mbit-radius);
}
.marketing-nav__cta:hover { background: var(--mbit-accent-hover); color: white; }

/* --- Footer --- */
.marketing-footer {
  margin-top: 4rem;
  padding: 2rem 1rem;
  background: var(--mbit-card-bg);
  border-top: 1px solid var(--mbit-border);
  font-size: 0.875rem;
  color: var(--mbit-muted);
}
.marketing-footer__inner {
  max-width: var(--mbit-maxw);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
  text-align: center;
}
.marketing-footer__links { display: flex; gap: 1rem; }

/* --- Generic content container --- */
.marketing-page {
  max-width: var(--mbit-maxw);
  margin: 0 auto;
  padding: 2rem 1rem;
}

/* --- Hero --- */
.hero {
  padding: 3rem 1rem;
  text-align: center;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.2;
  margin: 0 0 1rem;
  max-width: 30ch;
  margin-inline: auto;
}
.hero p.lead {
  font-size: 1.125rem;
  color: var(--mbit-muted);
  max-width: 50ch;
  margin: 0 auto 1.5rem;
}
.hero__ctas { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.hero__ctas--single { flex-direction: column; align-items: center; gap: 0.75rem; }
.hero__secondary-link {
  color: var(--mbit-muted);
  font-size: 0.95rem;
  text-decoration: none;
}
.hero__secondary-link:hover {
  color: var(--mbit-accent);
  text-decoration: underline;
}

/* --- Buttons (CTA) --- */
.btn {
  display: inline-block;
  padding: 0.75rem 1.25rem;
  border-radius: var(--mbit-radius);
  text-decoration: none;
  font-weight: 500;
  border: 2px solid var(--mbit-accent);
}
.btn--primary { background: var(--mbit-accent); color: white; }
.btn--primary:hover { background: var(--mbit-accent-hover); color: white; }
.btn--secondary { background: var(--mbit-bg); color: var(--mbit-accent); }
.btn--secondary:hover { background: var(--mbit-card-bg); }
.btn--large { font-size: 1.1rem; padding: 1rem 2rem; }

/* --- Tool stack (case-study branded cards) --- */
.tool-stack {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}
.tool-card {
  background: var(--mbit-card-bg);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--mbit-radius) var(--mbit-radius) 0;
}
.tool-card h3 { margin: 0 0 0.5rem; }
.tool-card p { margin: 0 0 0.75rem; }
.tool-card__link { font-size: 0.875rem; }

/* --- About avatar --- */
.about-avatar { margin: 1.5rem auto; max-width: 200px; text-align: center; }
.about-avatar svg { width: 100%; height: auto; border-radius: 50%; }
.about-avatar__hint { font-size: 0.75rem; color: var(--mbit-muted); margin: 0.5rem 0 0; }

/* --- Differentiators prose --- */
.differentiators-prose {
  font-size: 1.0625rem;
  max-width: 60ch;
  margin: 0 auto;
  line-height: 1.7;
}
.differentiators-prose strong {
  color: var(--mbit-accent);
  font-weight: 600;
}

/* --- Card grid --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}
.card {
  background: var(--mbit-card-bg);
  border: 1px solid var(--mbit-border);
  border-radius: var(--mbit-radius);
  padding: 1.25rem;
}
.card h3 { margin: 0 0 0.5rem; }

/* --- Section spacing --- */
section { padding: 2.5rem 0; }
section h2 { margin: 0 0 1.5rem; }

/* --- Category landing-page support --- */
.breadcrumb {
  font-size: 0.875rem;
  color: var(--mbit-muted);
  margin-bottom: 1rem;
}
.breadcrumb a { color: var(--mbit-muted); }
.breadcrumb a:hover { color: var(--mbit-accent); }
.breadcrumb [aria-current="page"] { color: var(--mbit-fg); }

.prose {
  max-width: 65ch;
  margin: 0 auto;
  line-height: 1.7;
}
.prose p { margin: 0 0 1rem; }
.prose ul { margin: 0 0 1rem 1.25rem; }
.prose li { margin: 0 0 0.25rem; }

.faq dt {
  font-weight: 600;
  margin-top: 1rem;
}
.faq dt:first-of-type { margin-top: 0; }
.faq dd {
  margin: 0 0 0.5rem;
  padding-left: 0;
}

.card-cta-secondary {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--mbit-accent);
  text-decoration: none;
}
.card-cta-secondary:hover { text-decoration: underline; }

.category-heading-link {
  color: inherit;
  text-decoration: none;
}
.category-heading-link:hover {
  color: var(--mbit-accent);
  text-decoration: underline;
}

/* --- Mobile nav toggle (hidden on desktop) --- */
.nav-toggle { display: none; }
.nav-toggle-label { display: none; }

/* --- Mobile --- */
@media (max-width: 640px) {
  .marketing-header__inner { flex-direction: row; flex-wrap: wrap; align-items: center; }

  .nav-toggle-label {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 22px;
    cursor: pointer;
    padding: 0;
  }
  .nav-toggle-bar {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--mbit-fg);
    transition: transform 0.2s, opacity 0.2s;
  }

  .marketing-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--mbit-border);
    margin-top: 0.75rem;
  }
  .nav-toggle:checked ~ .marketing-nav { display: flex; }

  /* Animate hamburger to X when open */
  .nav-toggle:checked ~ .nav-toggle-label .nav-toggle-bar:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }
  .nav-toggle:checked ~ .nav-toggle-label .nav-toggle-bar:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle:checked ~ .nav-toggle-label .nav-toggle-bar:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }

  .marketing-nav__cta {
    align-self: flex-start;
  }
}