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

body {
  background-color: #000;
  color: #00ff41; /* Klassisches Matrix-Grün */
  font-family: "Courier New", Courier, monospace;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Skip-to-content Link für Tastaturnavigation */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  background: #00ff41;
  color: #000;
  padding: 10px 20px;
  font-weight: bold;
  text-decoration: none;
  z-index: 9999;
  border-radius: 0 0 4px 0;
}

.skip-link:focus {
  top: 0;
}

/* Matrix-Regen Canvas Hintergrund */
#matrix-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0.12; /* Gedimmter Hintergrund für optimale Lesbarkeit */
}

/* Hauptcontainer */
.container {
  max-width: 950px;
  margin: 0 auto;
  padding: 40px 20px;
  position: relative;
  z-index: 1;
  flex: 1;
}

/* Header / Titel */
header {
  text-align: center;
  margin-bottom: 50px;
}

h1 {
  font-size: 3rem;
  text-transform: uppercase;
  letter-spacing: 4px;
  color: #fff;
  text-shadow:
    0 0 10px #00ff41,
    0 0 20px #00ff41,
    0 0 30px #00ff41;
  margin-bottom: 10px;
  animation: glitch 1s linear infinite alternate;
}

.subtitle {
  font-size: 1.1rem;
  color: #00ff41;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: #00e63a;
  margin-bottom: 15px;
}

.admin-tag {
  display: inline-block;
  background: rgba(0, 255, 65, 0.1);
  border: 1px dashed #00ff41;
  padding: 6px 12px;
  font-size: 0.9rem;
  color: #fff;
  border-radius: 4px;
}

/* Sektionen-Styling */
section {
  margin-bottom: 60px;
  background: rgba(0, 5, 0, 0.85);
  border: 1px solid #00ff41;
  border-radius: 6px;
  padding: 20px 30px 30px;
  box-shadow: 0 0 15px rgba(0, 255, 65, 0.1);
}

h2 {
  font-size: 1.6rem;
  border-bottom: 2px solid #00ff41;
  padding-bottom: 8px;
  margin-bottom: 25px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: #fff;
  text-shadow: 0 0 5px #00ff41;
}

h3 {
  font-size: 1.2rem;
  color: #fff;
  margin-top: 25px;
  margin-bottom: 10px;
  text-transform: uppercase;
}

p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: #a3ffa3;
  margin-bottom: 15px;
}

ol,
ul {
  margin-left: 20px;
  margin-bottom: 15px;
  color: #a3ffa3;
}

li {
  margin-bottom: 8px;
  line-height: 1.5;
}

strong {
  color: #fff;
  text-shadow: 0 0 2px #00ff41;
}

a {
  color: #fff;
  text-decoration: underline;
}
a:hover {
  color: #00ff41;
}

/* --- Linktree-Clients & App-Links --- */
.linktree-container {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
  margin-bottom: 30px;
}

.linktree-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  padding: 16px 20px;
  background: transparent;
  border: 2px solid #00ff41;
  color: #00ff41;
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 2px;
  border-radius: 4px;
  transition: all 0.3s ease;
  box-shadow: inset 0 0 0 0 rgba(0, 255, 65, 0.2);
}

.linktree-btn img {
  height: 24px;
  width: auto;
  object-fit: contain;
  filter: invert(53%) sepia(93%) saturate(1353%) hue-rotate(87deg)
    brightness(119%) contrast(119%);
  transition: all 0.3s ease;
}

.linktree-btn:hover {
  background: #00ff41;
  color: #000;
  box-shadow: 0 0 15px #00ff41;
  cursor: pointer;
}

.linktree-btn:hover img {
  filter: invert(0%) brightness(0%);
}

/* Mobile Download Bereich */
.app-download-box {
  background: rgba(0, 20, 0, 0.4);
  border: 1px dashed #00ff41;
  border-radius: 4px;
  padding: 20px;
  margin-top: 20px;
}

.app-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  padding: 15px 0;
}

.app-row:not(:last-child) {
  border-bottom: 1px solid rgba(0, 255, 65, 0.2);
}

.app-info {
  flex: 1;
  min-width: 200px;
}

.app-name {
  font-weight: bold;
  color: #fff;
  font-size: 1.1rem;
}

.app-buttons {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.app-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid #00ff41;
  color: #00ff41;
  text-decoration: none;
  font-size: 0.85rem;
  border-radius: 4px;
  text-transform: uppercase;
  transition: all 0.2s ease;
}

.app-btn:hover {
  background: rgba(0, 255, 65, 0.2);
  color: #fff;
  box-shadow: 0 0 8px rgba(0, 255, 65, 0.5);
}

/* --- Karten-Raster (Cards Grid) --- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 15px;
}

.card {
  background: rgba(0, 0, 0, 0.9);
  border: 1px solid #00ff41;
  border-radius: 4px;
  padding: 20px;
  transition: all 0.3s ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 15px rgba(0, 255, 65, 0.4);
  border-color: #fff;
}

.card.full-width-card {
  grid-column: 1 / -1;
}

/* Card title icons */
.card-title {
  font-size: 1.15rem;
  color: #fff;
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-bottom: 1px dashed #00ff41;
  padding-bottom: 5px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.card-icon {
  height: 20px;
  width: auto;
  object-fit: contain;
  filter: invert(53%) sepia(93%) saturate(1353%) hue-rotate(87deg)
    brightness(119%) contrast(119%);
  flex-shrink: 0;
}
.card-title--highlight .card-icon {
  filter: invert(40%) sepia(80%) saturate(500%) hue-rotate(95deg) brightness(110%);
}

.card-text {
  font-size: 0.9rem;
  line-height: 1.5;
  color: #a3ffa3;
  margin-bottom: 0;
}

/* --- Registrierungs-Widget --- */
.reg-form {
  padding: 10px 0;
  margin-top: 15px;
}

.reg-form label {
  display: block;
  font-size: 0.85rem;
  color: #00ff41;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
}

.reg-form input {
  width: 100%;
  background: rgba(0, 0, 0, 0.8);
  border: 1px solid #00ff41;
  color: #fff;
  font-family: "Courier New", Courier, monospace;
  font-size: 1rem;
  padding: 10px 14px;
  border-radius: 3px;
  margin-bottom: 20px;
  outline: none;
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
}

.reg-form input:focus {
  border-color: #fff;
  box-shadow: 0 0 8px rgba(0, 255, 65, 0.4);
}

.reg-submit {
  width: 100%;
  padding: 14px;
  background: transparent;
  border: 2px solid #00ff41;
  color: #00ff41;
  font-family: "Courier New", Courier, monospace;
  font-size: 1rem;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 2px;
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.reg-submit:hover:not(:disabled) {
  background: #00ff41;
  color: #000;
  box-shadow: 0 0 15px #00ff41;
}

.reg-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.reg-status {
  margin-top: 20px;
  padding: 15px;
  border-radius: 3px;
  font-size: 0.9rem;
  display: none;
}

.reg-status.success {
  display: block;
  background: rgba(0, 255, 65, 0.1);
  border: 1px solid #00ff41;
  color: #a3ffa3;
}

.reg-status.error {
  display: block;
  background: rgba(255, 0, 0, 0.1);
  border: 1px solid #ff0000;
  color: #ff9999;
}

/* --- Warnungen / Alerts --- */
.matrix-alert {
  background: rgba(255, 0, 0, 0.1);
  border: 1px solid #ff0000;
  color: #ff9999;
  padding: 20px;
  border-radius: 4px;
  margin-bottom: 25px;
}
.matrix-alert h3 {
  color: #ff3333;
  margin-bottom: 8px;
  margin-top: 0;
}

/* --- Codex Tabellen-Styling --- */
.codex-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 15px;
  font-size: 0.95rem;
}

.codex-table th,
.codex-table td {
  border: 1px solid #00ff41;
  padding: 12px;
  text-align: left;
}

.codex-table th {
  background: rgba(0, 255, 65, 0.15);
  color: #fff;
  text-transform: uppercase;
}

.codex-table tr:nth-child(even) {
  background: rgba(0, 255, 65, 0.03);
}

/* --- Footer --- */
/* (styles moved to end of file) */

/* Fokus-Styles für Tastaturnavigation */
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 3px;
  box-shadow: 0 0 0 4px rgba(0, 255, 65, 0.4);
}

/* Opacity-fix: sicherstellen dass gedimmter Text ausreichend Kontrast hat */
.app-info p {
  opacity: 1;
  color: #a3ffa3;
}

/* Glitch Animations-Effekt */
@keyframes glitch {
  0% {
    text-shadow:
      2px 2px 0px #ff0000,
      -2px -2px 0px #0000ff;
  }
  50% {
    text-shadow:
      -2px 2px 0px #00ff41,
      2px -2px 0px #ff0000;
  }
  100% {
    text-shadow:
      2px -2px 0px #0000ff,
      -2px 2px 0px #00ff41;
  }
}

/* Animationen deaktivieren für Nutzer die das bevorzugen */
@media (prefers-reduced-motion: reduce) {
  h1 {
    animation: none;
    text-shadow: 0 0 10px #00ff41;
  }
  #matrix-bg {
    display: none;
  }
  *,
  *::before,
  *::after {
    transition: none !important;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 20px 14px;
  }
  h1 {
    font-size: 2rem;
    letter-spacing: 2px;
  }
  h2 {
    font-size: 1.2rem;
    letter-spacing: 1px;
  }
  h3 {
    font-size: 1rem;
  }
  section {
    padding: 14px 16px 20px;
    margin-bottom: 30px;
  }
  .cards-grid {
    grid-template-columns: 1fr;
  }
  .linktree-btn {
    font-size: 0.95rem;
    padding: 14px 16px;
    letter-spacing: 1px;
  }
  .codex-table {
    font-size: 0.82rem;
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .codex-table th,
  .codex-table td {
    padding: 8px 10px;
    white-space: nowrap;
  }
  .app-row {
    flex-direction: column;
    align-items: flex-start;
  }
  .app-buttons {
    width: 100%;
  }
  .app-btn {
    flex: 1;
    justify-content: center;
  }
  .advanced-separator {
    margin: 30px 0 20px 0;
    padding: 14px 16px;
  }
  .abstract {
    padding: 12px 14px;
    margin-bottom: 24px;
  }
}

/* --- Abstract Block --- */
.abstract {
  border-left: 3px solid #00aa41;
  padding: 16px 20px;
  margin: 0 0 40px 0;
  background: rgba(0, 170, 65, 0.05);
  border-radius: 0 4px 4px 0;
}
.abstract p {
  margin: 0;
  color: #a3ffa3;
  line-height: 1.7;
}

/* --- Fortgeschrittenen-Trennbereich --- */
.advanced-separator {
  border-left: 3px solid #5a7a5a;
  border-radius: 0 4px 4px 0;
  background: rgba(0, 170, 65, 0.03);
  padding: 16px 20px;
  margin: 48px 0 32px 0;
}
.advanced-separator h2 {
  margin: 0 0 8px 0;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #5a7a5a;
  border-bottom: none;
  text-shadow: none;
  padding-bottom: 0;
}
.advanced-separator p {
  margin: 0;
  color: #5a7a5a;
  font-size: 0.9rem;
  line-height: 1.6;
}

/* --- Hilfsklassen für inline-style Ersatz --- */
.card--highlight {
  border-color: #00aa41;
}
.card-title--highlight {
  color: #00aa41;
}
.card--warning {
  border-color: #ff9900;
  background: rgba(20, 10, 0, 0.6);
}
.card-title--warning {
  color: #ff9900;
}
.text--danger {
  color: #ff3333;
  text-shadow: none;
}
.honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  visibility: hidden;
  pointer-events: none;
}
.code--white {
  color: #fff;
}
.mt-20 {
  margin-top: 20px;
}
.mt-28 {
  margin-top: 28px;
}

/* App store button icons */
.app-btn img {
  height: 18px;
  width: auto;
  object-fit: contain;
  filter: invert(53%) sepia(93%) saturate(1353%) hue-rotate(87deg)
    brightness(119%) contrast(119%);
  transition: filter 0.2s ease;
  flex-shrink: 0;
}
.app-btn:hover img {
  filter: invert(100%) brightness(200%);
}

/* Footer matrix style */
footer {
  text-align: center;
  padding: 20px;
  background: rgba(0, 5, 0, 0.9);
  border-top: 1px dashed #00ff41;
  font-size: 0.8rem;
  color: rgba(0, 255, 65, 0.7);
  position: relative;
  z-index: 1;
  letter-spacing: 1px;
}
.footer-line {
  color: rgba(0, 255, 65, 0.35);
  margin-bottom: 4px;
}
.footer-credit {
  color: rgba(0, 255, 65, 0.7);
  letter-spacing: 0.15em;
}
.footer-credit span {
  color: #00ff41;
  text-shadow: 0 0 6px #00ff41;
}