/* ==========================================================================
   MINERWA – zentrales Stylesheet
   Alle Farben/Abstände/Schriften als Variablen oben definiert.
   Wer nur eine Farbe ändern will: einfach hier im :root-Block anpassen.
   ========================================================================== */

:root {
  /* Farben */
  --color-navy: #101d30;
  --color-navy-dark: #0b1420;
  --color-navy-mid: #172a45;
  --color-cyan: #3fd0e0;
  --color-cyan-dark: #24a6b5;
  --color-white: #ffffff;
  --color-bg: #f5f7fa;
  --color-card: #ffffff;
  --color-border: #e2e6ec;
  --color-text: #1b2430;
  --color-text-muted: #58687c;
  --color-text-on-navy: #eef2f7;
  --color-text-on-navy-muted: #a7b4c6;

  /* Typografie */
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-headline: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  /* Abstände */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;

  /* Layout */
  --max-width: 1120px;
  --radius: 10px;
  --shadow: 0 2px 16px rgba(16, 29, 48, 0.08);
  --shadow-hover: 0 8px 28px rgba(16, 29, 48, 0.14);
}

/* --------------------------------------------------------------------------
   Reset & Grundlagen
   -------------------------------------------------------------------------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  text-decoration: underline;
}

h1, h2, h3, h4 {
  font-family: var(--font-headline);
  font-weight: 800;
  line-height: 1.15;
  margin: 0 0 var(--space-2);
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  letter-spacing: 0.01em;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
}

h3 {
  font-size: 1.25rem;
}

p {
  margin: 0 0 var(--space-2);
}

ul, ol {
  margin: 0 0 var(--space-2);
  padding-left: 1.3em;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

section {
  padding: var(--space-5) 0;
}

.section-tight {
  padding: var(--space-4) 0;
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-cyan-dark);
  margin-bottom: var(--space-1);
}

.lead {
  font-size: 1.15rem;
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Skip-Link (Barrierefreiheit)
   -------------------------------------------------------------------------- */

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-cyan);
  color: var(--color-navy-dark);
  padding: 0.6em 1em;
  z-index: 200;
  font-weight: 700;
}

.skip-link:focus {
  left: var(--space-2);
  top: var(--space-2);
}

/* --------------------------------------------------------------------------
   Header / Navigation
   -------------------------------------------------------------------------- */

.site-header {
  background: var(--color-navy);
  color: var(--color-text-on-navy);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65em;
  font-family: var(--font-headline);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.03em;
  color: var(--color-white);
}

.brand:hover {
  text-decoration: none;
}

.brand img {
  height: 36px;
  width: auto;
  border-radius: 4px;
}

.main-nav ul {
  display: flex;
  gap: var(--space-3);
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav a {
  color: var(--color-text-on-navy);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.4em 0;
  border-bottom: 2px solid transparent;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--color-white);
  border-bottom-color: var(--color-cyan);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--color-white);
  cursor: pointer;
  padding: 0.5em;
}

.nav-toggle svg {
  width: 26px;
  height: 26px;
  display: block;
}

/* Mobile Navigation */
@media (max-width: 800px) {
  .nav-toggle {
    display: block;
  }

  .main-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-navy);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }

  .main-nav.is-open {
    max-height: 400px;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 0;
    padding: var(--space-2) var(--space-3) var(--space-3);
  }

  .main-nav li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .main-nav a {
    display: block;
    padding: 0.9em 0;
  }
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.hero {
  background: radial-gradient(ellipse at top right, var(--color-navy-mid) 0%, var(--color-navy) 55%, var(--color-navy-dark) 100%);
  color: var(--color-text-on-navy);
  padding: var(--space-6) 0 var(--space-5);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: var(--space-5);
  align-items: center;
}

@media (max-width: 860px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: var(--space-2);
}

.hero .lead {
  color: var(--color-text-on-navy-muted);
  font-size: 1.2rem;
  max-width: 46em;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-meta-item {
  min-width: 10em;
}

.hero-meta-item .label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-on-navy-muted);
  margin-bottom: 0.2em;
}

.hero-meta-item .value {
  font-weight: 700;
  color: var(--color-white);
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.hero-visual img {
  max-width: 320px;
  width: 100%;
}

/* --------------------------------------------------------------------------
   Cards / Kacheln
   -------------------------------------------------------------------------- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-3);
}

.card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3);
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

a.card {
  color: inherit;
  display: block;
}

a.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
  text-decoration: none;
}

.card h3 {
  color: var(--color-navy);
  margin-bottom: 0.4em;
}

.card p {
  color: var(--color-text-muted);
  margin-bottom: 0.6em;
}

.card .card-link {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-cyan-dark);
}

/* --------------------------------------------------------------------------
   Logo-Leiste
   -------------------------------------------------------------------------- */

.logo-strip {
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) 0;
}

.logo-strip .strip-label {
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-3);
}

.logo-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
}

.logo-slot {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 56px;
  width: 150px;
}

.logo-slot img {
  max-height: 56px;
  max-width: 150px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: 0.7;
  transition: filter 0.2s ease, opacity 0.2s ease;
}

.logo-slot img:hover {
  filter: grayscale(0%);
  opacity: 1;
}

/* --------------------------------------------------------------------------
   Content-Bereiche (Text-Seiten)
   -------------------------------------------------------------------------- */

.page-hero {
  background: var(--color-navy);
  color: var(--color-text-on-navy);
  padding: var(--space-5) 0 var(--space-4);
}

.page-hero h1 {
  color: var(--color-white);
}

.page-hero .lead {
  color: var(--color-text-on-navy-muted);
  max-width: 50em;
}

.breadcrumb {
  font-size: 0.85rem;
  color: var(--color-text-on-navy-muted);
  margin-bottom: var(--space-2);
}

.breadcrumb a {
  color: var(--color-text-on-navy-muted);
}

.prose {
  max-width: 74ch;
}

.prose h2 {
  margin-top: var(--space-4);
  color: var(--color-navy);
}

.prose h2:first-child {
  margin-top: 0;
}

.prose p {
  color: var(--color-text);
}

/* --------------------------------------------------------------------------
   Arbeitspakete / Timeline (Projekt-Seite)
   -------------------------------------------------------------------------- */

.wp-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: wp;
}

.wp-list li {
  counter-increment: wp;
  display: grid;
  grid-template-columns: 3em 1fr;
  gap: var(--space-2);
  padding: var(--space-2) 0;
  border-top: 1px solid var(--color-border);
}

.wp-list li:first-child {
  border-top: none;
}

.wp-list li::before {
  content: "AP" counter(wp);
  font-weight: 800;
  color: var(--color-cyan-dark);
  font-size: 0.9rem;
}

.wp-list strong {
  color: var(--color-navy);
}

/* --------------------------------------------------------------------------
   Timeline (Aktueller Stand)
   -------------------------------------------------------------------------- */

.timeline {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.timeline-entry {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-cyan);
  border-radius: var(--radius);
  padding: var(--space-3);
  box-shadow: var(--shadow);
}

.timeline-entry.is-upcoming {
  border-left-color: var(--color-navy-mid);
  border-style: dashed;
  border-left-style: solid;
  opacity: 0.92;
}

.timeline-date {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-cyan-dark);
  margin-bottom: 0.3em;
}

.timeline-entry h3 {
  color: var(--color-navy);
  margin-bottom: 0.4em;
}

.timeline-entry p {
  color: var(--color-text-muted);
  margin-bottom: 0;
}

.tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--color-bg);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  padding: 0.2em 0.7em;
  margin-left: 0.5em;
}

/* --------------------------------------------------------------------------
   Konsortium-Kacheln
   -------------------------------------------------------------------------- */

.partner-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.partner-logo {
  height: 64px;
  display: flex;
  align-items: center;
}

.partner-logo img {
  max-height: 64px;
  max-width: 220px;
  width: auto;
  height: auto;
  object-fit: contain;
}

.partner-card h3 {
  color: var(--color-navy);
  margin-bottom: 0;
}

.partner-role {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-cyan-dark);
}

.partner-note {
  margin-top: var(--space-2);
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-border);
  font-size: 0.9rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 0.8em;
}

.partner-note img {
  height: 28px;
  width: auto;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   Kontakt / Info-Box
   -------------------------------------------------------------------------- */

.info-box {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3);
  box-shadow: var(--shadow);
}

.info-box dt {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}

.info-box dt:first-child {
  margin-top: 0;
}

.info-box dd {
  margin: 0;
  font-weight: 600;
  color: var(--color-navy);
}

.placeholder {
  background: #fff8e6;
  border: 1px solid #f0ddab;
  color: #6b5416;
  border-radius: 6px;
  padding: 0.15em 0.5em;
  font-size: 0.9em;
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */

.btn {
  display: inline-block;
  background: var(--color-cyan);
  color: var(--color-navy-dark);
  font-weight: 700;
  padding: 0.75em 1.4em;
  border-radius: 6px;
  border: none;
}

.btn:hover {
  background: var(--color-cyan-dark);
  color: var(--color-white);
  text-decoration: none;
}

.btn-outline {
  display: inline-block;
  background: transparent;
  color: var(--color-white);
  font-weight: 700;
  padding: 0.75em 1.4em;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.btn-outline:hover {
  border-color: var(--color-white);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.site-footer {
  background: var(--color-navy-dark);
  color: var(--color-text-on-navy-muted);
  padding: var(--space-5) 0 var(--space-3);
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.footer-grid h4 {
  color: var(--color-white);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-2);
}

.footer-grid ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-grid li {
  margin-bottom: 0.5em;
}

.footer-grid a {
  color: var(--color-text-on-navy-muted);
}

.footer-grid a:hover {
  color: var(--color-white);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-2);
  padding-top: var(--space-3);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-legal a {
  color: var(--color-text-on-navy-muted);
  margin-right: var(--space-2);
}

/* --------------------------------------------------------------------------
   Utilities
   -------------------------------------------------------------------------- */

.text-center {
  text-align: center;
}

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }