/* ==========================================================================
   CSS VARIABLES & NEW COLOR PALETTE
   ========================================================================== */
:root {
  /* Specified Palette */
  --color-korper: #121212;        /* Text, dark pages */
  --color-akzent: #2388A6;        /* Labels, shapes */
  --color-bauch: #CDEBF0;         /* Tinted fills */
  --color-akzent-deep: #145E75;   /* Small accent text */
  --color-akzent-light: #7CC6DC;  /* Accent on dark */
  --color-ice: #F4FAFB;           /* Page ground */

  /* Semantic & Compatibility Mappings */
  --primary-navy: var(--color-akzent-deep);
  --deep-blue: var(--color-akzent-deep);
  --accent-blue: var(--color-akzent);
  --text-dark: var(--color-korper);
  --text-muted: #50616b;
  --text-light: #ffffff;
  --bg-light: var(--color-ice);
  --bg-dark: var(--color-korper);
  --bg-card: rgba(20, 94, 117, 0.45);
  --border-radius: 8px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text-dark);
  background-color: var(--color-ice); /* Page ground */
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 38px;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  border-radius: 50px;
  transition: var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
}

.btn-primary {
  background-color: var(--color-akzent);
  color: var(--text-light);
  border-color: var(--color-akzent);
}

.btn-primary:hover {
  background-color: transparent;
  color: var(--color-akzent-deep);
  border-color: var(--color-akzent-deep);
}

.btn-white {
  background-color: #ffffff;
  color: var(--color-akzent-deep);
  border-color: #ffffff;
}

.btn-white:hover {
  background-color: transparent;
  color: #ffffff;
  border-color: #ffffff;
}

.btn-outline {
  border-color: rgba(255, 255, 255, 0.8);
  color: #ffffff;
  background: transparent;
}

.btn-outline:hover {
  background-color: #ffffff;
  color: var(--color-akzent-deep);
}

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */
header {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 24px 0;
  background: linear-gradient(to bottom, rgba(18, 18, 18, 0.75), transparent);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: 3px;
  color: var(--text-light);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 32px;
}

.nav-link {
  color: var(--text-light);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  opacity: 0.9;
  position: relative;
  transition: var(--transition);
}

.nav-link:hover {
  opacity: 1;
  color: var(--color-akzent-light); /* Accent on dark */
}

/* ==========================================================================
   HERO / BANNER SECTION
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: var(--text-light);
  padding: 120px 24px 80px;
  overflow: hidden;
  background-color: var(--bg-dark); /* Körper */
}

.hero-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  pointer-events: none;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    rgba(20, 94, 117, 0.75),  /* Akzent deep tint */
    rgba(18, 18, 18, 0.90)    /* Körper dark tone */
  );
  z-index: 2;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 900px;
  margin: 0 auto;
}

.hero-title {
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 800;
  letter-spacing: 2px;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.hero-subtitle {
  font-size: clamp(1.2rem, 3vw, 2rem);
  font-weight: 600;
  margin-bottom: 16px;
  opacity: 0.95;
}

.hero-tagline {
  font-size: clamp(0.9rem, 1.5vw, 1.15rem);
  letter-spacing: 5px;
  font-weight: 600;
  text-transform: none;
  margin-bottom: 40px;
  color: var(--color-akzent-light); /* Accent on dark */
}

.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  width: 28px;
  height: 48px;
  border: 2px solid var(--color-akzent-light);
  border-radius: 20px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
  z-index: 10;
}

.scroll-indicator::after {
  content: '';
  width: 4px;
  height: 8px;
  background-color: var(--color-akzent-light);
  border-radius: 2px;
  animation: scrollBounce 2s infinite ease-in-out;
}

@keyframes scrollBounce {
  0%   { transform: translateY(0); opacity: 1; }
  50%  { transform: translateY(12px); opacity: 0.3; }
  100% { transform: translateY(0); opacity: 1; }
}

/* Hero Video Credit (Bottom-Left) */
.hero-video-credit {
  position: absolute;
  bottom: 24px;
  left: 24px;
  z-index: 10;
  font-size: 0.72rem;
  letter-spacing: 0.5px;
  color: rgba(255, 255, 255, 0.55);
}

.hero-video-credit a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: var(--transition);
}

.hero-video-credit a:hover {
  color: var(--color-akzent-light);
}

@media (max-width: 600px) {
  .hero-video-credit {
    bottom: 12px;
    left: 16px;
    font-size: 0.65rem;
  }
}

/* ==========================================================================
   SECTION: MISSION & 3-CARD PILLARS
   ========================================================================== */
.section-overview {
  padding: 100px 0;
  background-color: var(--color-ice); /* Page ground */
  text-align: center;
}

.section-header {
  max-width: 800px;
  margin: 0 auto 60px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--color-akzent-deep); /* Deep high-contrast title */
  margin-bottom: 20px;
  line-height: 1.2;
}

.section-desc {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
  margin-bottom: 50px;
}

.card {
  position: relative;
  border-radius: var(--border-radius);
  padding: 60px 32px;
  color: var(--text-light);
  background: linear-gradient(135deg, rgba(20, 94, 117, 0.95), rgba(18, 18, 18, 0.98));
  overflow: hidden;
  min-height: 320px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  box-shadow: 0 10px 30px rgba(18, 18, 18, 0.08);
  transition: var(--transition);
  border: 1px solid rgba(124, 198, 220, 0.2);
}

.card:hover {
  transform: translateY(-8px);
  border-color: var(--color-akzent-light);
  box-shadow: 0 16px 40px rgba(20, 94, 117, 0.25);
}

.card-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-akzent-light); /* Accent on dark card */
}

.card-text {
  font-size: 0.95rem;
  opacity: 0.95;
  line-height: 1.6;
}

/* ==========================================================================
   SECTION: FULL-WIDTH CALLOUT
   ========================================================================== */
.section-callout {
  padding: 120px 0;
  background: linear-gradient(rgba(20, 94, 117, 0.90), rgba(18, 18, 18, 0.95)),
              linear-gradient(45deg, var(--color-akzent-deep), var(--color-akzent));
  color: var(--text-light);
}

.callout-content {
  max-width: 650px;
}

.callout-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
}

.callout-text {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 36px;
  opacity: 0.95;
}

/* ==========================================================================
   SECTION: PARTNERS & SPONSORS
   ========================================================================== */
.section-partners {
  padding: 90px 0;
  background-color: var(--color-ice); /* Page ground */
  text-align: center;
}

.partners-header {
  margin-bottom: 40px;
}

.sub-heading {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-akzent-deep); /* Small accent text */
  margin-bottom: 12px;
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 24px;
  align-items: center;
  margin: 40px 0;
}

.partner-logo-box {
  background: var(--color-bauch); /* Tinted fills */
  height: 90px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--color-akzent-deep);
  border: 1px solid rgba(35, 136, 166, 0.3);
  padding: 16px;
  transition: var(--transition);
}

.partner-logo-box:hover {
  border-color: var(--color-akzent);
  color: var(--color-korper);
  background: #ffffff;
  transform: translateY(-3px);
}

/* ==========================================================================
   SECTION: SPLIT PROMOTION / HARDWARE SHOWCASE
   ========================================================================== */
.section-showcase {
  padding: 100px 0;
  background-color: var(--color-korper); /* Dark page / section */
  color: var(--text-light);
}

.split-layout {
  display: grid;
  grid-template-columns: 4fr 5fr;
  gap: 60px;
  align-items: center;
}

.showcase-text-col .section-title {
  color: var(--text-light);
  text-align: left;
}

.showcase-text-col p {
  color: #cbd5e1;
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 32px;
}

.image-placeholder-frame {
  width: 100%;
  height: 380px;
  background: #192327;
  border-radius: var(--border-radius);
  border: 2px dashed var(--color-akzent); /* Akzent shapes/borders */
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--color-akzent-light);
  font-weight: 600;
  overflow: hidden;
  position: relative;
}

.image-placeholder-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
footer {
  background-color: var(--color-korper); /* Dark pages */
  color: #cdebf0;
  padding-top: 80px;
  border-top: 1px solid rgba(205, 235, 240, 0.15);
}

.footer-columns {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 48px;
  align-items: center;
  padding-bottom: 60px;
}

.footer-address {
  font-size: 0.95rem;
  line-height: 1.7;
}

.footer-address strong {
  color: #ffffff;
  display: block;
  margin-bottom: 6px;
}

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

.social-links {
  display: flex;
  gap: 14px;
  justify-content: flex-end;
}

.social-icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 6px;
  background-color: #212c30;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 0.8rem;
  font-weight: 700;
  transition: var(--transition);
}

.social-icon-btn:hover {
  background-color: var(--color-akzent);
  transform: translateY(-3px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 0;
  text-align: center;
  font-size: 0.85rem;
  color: #7b949c;
}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS
   ========================================================================== */
@media (max-width: 900px) {
  .split-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-columns {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 32px;
  }

  .social-links {
    justify-content: center;
  }

  .nav-menu {
    display: none; 
  }
}