:root {
  --bg-color: #0b0f19;
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --accent-blue: #00f0ff;
  --accent-magenta: #ff00aa;
  --panel-bg: #111827;
  --border-color: #1f2937;
  --font-system:
    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica,
    Arial, sans-serif;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-system);
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem;
}

header {
  text-align: center;
  padding: 4rem 0 2rem;
  margin-bottom: 2rem;
  position: relative;
}

h1 {
  font-size: 4rem;
  font-weight: 900;
  margin: 0;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-magenta));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 4px 30px rgba(0, 240, 255, 0.3);
  letter-spacing: -1px;
}

.subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-top: 1rem;
}

.lang-switch {
  background-color: var(--panel-bg);
  border: 1px solid var(--border-color);
  padding: 10px 20px;
  border-radius: 8px;
  display: inline-block;
  margin-top: 2rem;
  font-weight: 500;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.lang-switch a {
  color: var(--accent-blue);
  text-decoration: none;
}

.lang-switch a:hover {
  text-decoration: underline;
  color: var(--accent-magenta);
}

h2 {
  color: #fff;
  font-size: 2.2rem;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 0.5rem;
  margin-top: 4rem;
  font-weight: 700;
}

h3 {
  color: var(--accent-blue);
  font-size: 1.5rem;
  margin-top: 2rem;
}

p {
  font-size: 1.1rem;
}

.section {
  background-color: var(--panel-bg);
  border-radius: 16px;
  padding: 2.5rem;
  margin-bottom: 2rem;
  border: 1px solid var(--border-color);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.alert-box {
  background-color: rgba(255, 0, 170, 0.1);
  border-left: 4px solid var(--accent-magenta);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 8px 8px 0;
}

.info-box {
  background-color: rgba(0, 240, 255, 0.1);
  border-left: 4px solid var(--accent-blue);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 8px 8px 0;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.image-card {
  background-color: transparent;
  perspective: 1000px;
  height: 480px; /* Base height to accommodate screens */
}

.image-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  text-align: center;
  transition: transform 0.6s;
  transform-style: preserve-3d;
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2);
  border-radius: 12px;
}

.image-card:hover .image-card-inner {
  transform: rotateY(180deg);
}

.image-card-front,
.image-card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background-color: #000;
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
}

.image-card-front {
  padding: 12px;
}

.image-card-back {
  transform: rotateY(180deg);
  padding: 20px;
  background-color: #1a2333;
  color: #fff;
  overflow-y: auto;
  text-align: left;
}

.image-card-back h4 {
  color: var(--accent-magenta);
  margin-top: 0;
  margin-bottom: 10px;
  font-size: 1.1rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 5px;
}

.image-card-back ul {
  padding-left: 20px;
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.image-card-back li {
  margin-bottom: 8px;
}

.image-card-front:hover {
  box-shadow: 0 12px 25px rgba(0, 240, 255, 0.15);
  border-color: var(--accent-blue);
}

.image-card img {
  width: 100%;
  height: calc(100% - 35px); /* Leave room for caption */
  border-radius: 8px;
  object-fit: contain;
}

.image-card .caption {
  margin-top: auto;
  padding-top: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-align: center;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  background-color: rgba(255, 255, 255, 0.02);
  border-radius: 8px;
  overflow: hidden;
}

th,
td {
  padding: 1.2rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

th {
  background-color: rgba(255, 255, 255, 0.05);
  font-weight: 600;
  color: #fff;
}

tr:last-child td {
  border-bottom: none;
}

/* Responsive Table */
@media (max-width: 768px) {
  table.responsive-table,
  table.responsive-table thead,
  table.responsive-table tbody,
  table.responsive-table th,
  table.responsive-table td,
  table.responsive-table tr {
    display: block;
  }

  table.responsive-table thead tr {
    position: absolute;
    top: -9999px;
    left: -9999px;
  }

  table.responsive-table tr {
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    background-color: rgba(255, 255, 255, 0.02);
  }

  table.responsive-table td {
    border: none;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    padding: 1.2rem;
    padding-left: 50%;
    text-align: right;
  }

  table.responsive-table td::before {
    content: attr(data-label);
    position: absolute;
    top: 50%;
    left: 1.2rem;
    width: calc(45% - 1.2rem);
    white-space: nowrap;
    text-align: left;
    font-weight: 600;
    color: var(--accent-magenta);
    transform: translateY(-50%);
  }

  .container {
    padding: 1rem;
  }

  .section {
    padding: 1.5rem;
  }
}

.highlight {
  color: var(--accent-magenta);
  font-weight: bold;
}

code {
  background-color: rgba(255, 255, 255, 0.1);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-family: monospace;
  color: var(--accent-blue);
}

@media print {
  body {
    background-color: white !important;
    color: black !important;
  }
  .section {
    background-color: transparent !important;
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
    margin-bottom: 2rem !important;
  }
  .image-card {
    height: auto !important;
    page-break-inside: avoid;
    break-inside: avoid;
    margin-bottom: 1.5rem;
  }
  .image-card-inner {
    transform: none !important;
    box-shadow: none !important;
    border: 1px solid #ccc !important;
    padding: 1rem !important;
  }
  .image-card-front,
  .image-card-back {
    position: static !important;
    transform: none !important;
    border: none !important;
    background-color: transparent !important;
    color: black !important;
    padding: 0 !important;
    height: auto !important;
    display: block !important;
    page-break-inside: avoid;
    break-inside: avoid;
  }
  .image-card-front {
    margin-bottom: 1rem;
  }
  .image-card-back h4 {
    color: black !important;
    border-bottom-color: #ccc !important;
  }
  .image-card-back ul {
    color: black !important;
  }
  .image-card img {
    max-height: 250px;
    object-fit: contain;
    page-break-inside: avoid;
    break-inside: avoid;
  }
  .caption {
    color: black !important;
  }
}