/* Hero Section Styling */
  .hero-tagline {
    font-family: 'JetBrains Mono', monospace;
    font-size: 15px;
    font-weight: 500;
    color: var(--cyan);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 16px;
  }


  .hero-title {
    font-size: clamp(48px, 6.5vw, 84px);
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.1;
    margin: 0 0 20px 0;
    color: var(--heading-color);
  }


  .hero-copy {
    font-size: 17px;
    line-height: 1.65;
    color: var(--body-text);
    margin: 0 0 28px 0;
  }


  .colophon-strip {
    border-top: 1px dashed var(--panel-border-bright);
    padding-top: 16px;
    margin-top: 10px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
  }


  .colophon-strip .colophon-label {
    color: var(--yellow);
    font-weight: 700;
  }


  .colophon-strip .colophon-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }


  .colophon-strip .colophon-sep {
    color: var(--text-dim);
  }


  /* Two Column Section */
  .dual-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    margin-bottom: 40px;
  }


  @media (max-width: 768px) {
    .dual-columns {
      grid-template-columns: 1fr;
    }
  }


  .column-panel {
    display: flex;
    flex-direction: column;
    height: 100%;
  }


  .column-panel h2 {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin: 0 0 14px 0;
    color: var(--heading-color);
  }


  .column-panel p {
    font-size: 15px;
    line-height: 1.65;
    color: var(--body-text);
    margin: 0;
    flex-grow: 1;
  }


  /* Tactical Asset Gallery Section */
  .gallery-container {
    position: relative;
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    padding: 24px;
    margin-bottom: 60px;
  }


  .gallery-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 16px;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--panel-border);
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
  }


  .gallery-viewport {
    position: relative;
    width: 100%;
    min-height: 380px;
    background: var(--bottom-text-bg);
    border: 1px solid var(--panel-border);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
  }


  .gallery-viewport::before {
    content: "+";
    position: absolute;
    top: 8px;
    left: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    color: var(--cyan);
    opacity: 0.6;
  }


  .gallery-viewport::after {
    content: "+";
    position: absolute;
    bottom: 8px;
    right: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    color: var(--magenta);
    opacity: 0.6;
  }


  .gallery-img-elem {
    max-width: 100%;
    max-height: 420px;
    display: block;
    object-fit: contain;
    transition: opacity 0.3s ease;
  }


  .gallery-info-strip {
    margin-top: 16px;
    padding: 16px 20px;
    background: var(--panel-bg-alt);
    border-left: 2px solid var(--yellow);
    display: flex;
    flex-direction: column;
    gap: 4px;
  }


  .gallery-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--heading-color);
    font-family: 'Inter', sans-serif;
  }


  .gallery-desc {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
  }


  .gallery-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-top: 20px;
  }


  .nav-step-btn {
    background: transparent;
    border: 1px solid var(--panel-border);
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    padding: 6px 14px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-transform: uppercase;
    letter-spacing: 0.08em;
  }


  .nav-step-btn:hover,
  .nav-step-btn.active {
    border-color: var(--cyan);
    color: var(--cyan);
    background: rgba(0, 255, 255, 0.05);
  }


  /* Transmission Section (MOD.04) */
  .transmission-container {
    position: relative;
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    padding: 28px;
    margin-bottom: 60px;
  }


  .transmission-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 14px;
    margin-bottom: 18px;
    border-bottom: 1px solid var(--panel-border);
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
  }


  .transmission-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: center;
  }


  @media (max-width: 768px) {
    .transmission-body {
      grid-template-columns: 1fr;
    }
  }


  .waveform-box {
    position: relative;
    background: #0a0a0a;
    border: 1px solid var(--panel-border);
    padding: 16px;
    height: 140px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }


  .waveform-canvas {
    width: 100%;
    height: 80px;
    display: block;
  }


  .waveform-meta {
    display: flex;
    justify-content: space-between;
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    color: var(--text-dim);
    letter-spacing: 0.08em;
  }


  .telemetry-card {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }


  .telemetry-row {
    display: flex;
    justify-content: space-between;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    padding: 6px 12px;
    background: var(--panel-bg-alt);
    border-left: 2px solid var(--cyan);
    color: var(--text-color);
  }


  .telemetry-row.magenta-edge {
    border-left-color: var(--magenta);
  }
  .telemetry-row.yellow-edge {
    border-left-color: var(--yellow);
  }


  .audio-ctrl-btn {
    align-self: flex-start;
    background: transparent;
    border: 1px solid var(--panel-border-bright);
    color: var(--text-color);
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    padding: 8px 18px;
    cursor: pointer;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 6px;
  }


  .audio-ctrl-btn:hover {
    border-color: var(--magenta);
    color: var(--magenta);
    box-shadow: 0 0 10px rgba(255, 0, 255, 0.25);
  }


  .audio-ctrl-btn.active {
    background: rgba(255, 0, 255, 0.12);
    border-color: var(--magenta);
    color: #ffffff;
  }