/* CSS Reset & Variables */
:root {
  --bg-dark: #0b1120;
  --bg-surface: #131d31;
  --bg-card: #1a2640;
  --border: #243454;
  --accent: #5ae4a3;
  --accent-glow: rgba(90, 228, 163, 0.15);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-sub: #cbd5e1;
  --radius: 8px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  word-break: break-word;
  overflow-wrap: break-word;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* Header & Beacon Navigation */
.beacon {
  background-color: var(--bg-dark);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(12px);
}

.beacon-domain {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
}

.emblem {
  display: flex;
  align-items: center;
  gap: 12px;
}

.emblem img {
  height: 36px;
  width: auto;
}

.emblem span {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.2px;
}

.relay-stream {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.morse {
  color: var(--text-sub);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 500;
  transition: all 0.25s ease;
}

.morse:hover,
.morse.active {
  color: var(--accent);
  background: var(--accent-glow);
}

/* Main Layout Master Domain */
main {
  display: block;
  width: 100%;
}

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

/* Common Typography & Badges */
.crest-h1 {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text-main);
  letter-spacing: -0.5px;
  margin-bottom: 16px;
  white-space: normal;
}

.crest-h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 14px;
  letter-spacing: -0.3px;
}

.crest-h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 10px;
}

.whisper {
  color: var(--text-sub);
  font-size: 1rem;
  line-height: 1.7;
}

.whisper-muted {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.ribbon {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--accent-glow);
  border: 1px solid var(--accent);
  border-radius: 20px;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.glyph {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* Section 1: Intro Zenith Domain */
.zenith-domain {
  padding: 60px 0 80px;
  background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-surface) 100%);
  border-bottom: 1px solid var(--border);
}

.sheath {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 30px rgba(90, 228, 163, 0.05);
}

.cluster {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  align-items: center;
}

.dispatch {
  flex: 1 1 500px;
  min-width: 0;
}

.packet {
  flex: 1 1 400px;
  min-width: 0;
}

.vault {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.cipher {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.cipher:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
}

.cipher-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

/* Section 2: Tutorial Strato Domain */
.strato-domain {
  padding: 80px 0;
  background: var(--bg-dark);
  border-bottom: 1px solid var(--border);
}

.strato-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 40px;
}

.node {
  flex: 1 1 260px;
  min-width: 0;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 24px;
  position: relative;
  transition: all 0.25s ease;
}

.node:hover {
  border-color: var(--accent);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.node-index {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--bg-dark);
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.1rem;
}

.code-box {
  background: var(--bg-card);
  border: 1px dashed var(--accent);
  border-radius: 6px;
  padding: 16px;
  margin-top: 16px;
  position: relative;
}

.code-whisper {
  font-family: "Courier New", Courier, monospace;
  color: var(--accent);
  font-size: 0.9rem;
  line-height: 1.5;
}

.pulse-trigger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--accent);
  color: var(--bg-dark);
  font-weight: 700;
  border-radius: var(--radius);
  text-decoration: none;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(90, 228, 163, 0.25);
  transition: all 0.25s ease;
  margin-top: 24px;
}

.pulse-trigger:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(90, 228, 163, 0.4);
}

.spark-trigger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(90, 228, 163, 0.15);
  color: var(--accent);
  font-weight: 600;
  border-radius: 6px;
  text-decoration: none;
  border: 1px solid var(--accent);
  cursor: pointer;
  transition: all 0.25s ease;
  font-size: 0.85rem;
}

.spark-trigger:hover {
  background: var(--accent);
  color: var(--bg-dark);
}

/* Section 3: Privacy Security Aero Domain */
.aero-domain {
  padding: 80px 0;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
}

.aero-layout {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  margin-top: 40px;
}

.frame-dispatch {
  flex: 1 1 340px;
  min-width: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.frame-seal {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: rgba(90, 228, 163, 0.1);
  border: 1px solid rgba(90, 228, 163, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

/* Data UI MTProto Diagram */
.mtproto-viz {
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  margin-top: 40px;
}

.mtproto-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-around;
  text-align: center;
}

.mtproto-node {
  flex: 1 1 200px;
  min-width: 0;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
}

/* Section 4: Risk Prevention Orbit Domain */
.orbit-domain {
  padding: 80px 0;
  background: var(--bg-dark);
}

.orbit-box {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
}

.orbit-stream {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 30px;
}

.orbit-node {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: flex-start;
  background: var(--bg-card);
  padding: 20px;
  border-radius: 6px;
  border-left: 4px solid var(--accent);
}

.morse-cluster {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

/* Footer Terminus Ground */
.terminus-ground {
  background: #070b16;
  border-top: 1px solid var(--border);
  padding: 60px 0 40px;
}

.terminus-anchor {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: space-between;
}

.terminus-info {
  flex: 1 1 300px;
  min-width: 0;
}

.terminus-links {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

.terminus-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.terminus-col a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.25s ease;
}

.terminus-col a:hover {
  color: var(--accent);
}

.copyright {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Responsive Rules */
@media (max-width: 768px) {
  .beacon-domain {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .relay-stream {
    width: 100%;
    justify-content: flex-start;
  }
  .crest-h1 {
    font-size: 1.75rem;
  }
  .crest-h2 {
    font-size: 1.4rem;
  }
  .sheath, .orbit-box {
    padding: 24px;
  }
  .node, .frame-dispatch {
    flex: 1 1 100%;
  }
}

.relay-beacon{
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(11, 17, 32, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid #243454;
            width: 100%;
        }

.relay-beacon .relay-beacon-domain{
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 24px;
            height: 72px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
        }

.relay-beacon .relay-emblem{
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 700;
            font-size: 1.15rem;
            color: #f8fafc;
            letter-spacing: -0.3px;
        }

.relay-beacon .relay-emblem img{
            height: 36px;
            width: auto;
            display: block;
        }

.relay-beacon .relay-relay-stream{
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
        }

.relay-beacon .relay-morse{
            padding: 8px 16px;
            font-size: 0.92rem;
            font-weight: 500;
            color: #cbd5e1;
            border-radius: 8px;
            transition: all 0.25s ease;
        }

.relay-beacon .relay-morse:hover{
            color: #5ae4a3;
            background: rgba(90, 228, 163, 0.1);
        }

.relay-beacon .relay-morse.active{
            color: #5ae4a3;
            background: rgba(90, 228, 163, 0.12);
            border: 1px solid rgba(90, 228, 163, 0.3);
            font-weight: 600;
        }

@media (max-width: 768px){.relay-beacon .relay-beacon-domain{
                height: auto;
                padding: 16px;
                flex-direction: column;
                gap: 16px;
            }

.relay-beacon .relay-relay-stream{
                justify-content: center;
                width: 100%;
            }

.relay-beacon .relay-morse{
                padding: 6px 10px;
                font-size: 0.85rem;
            }}

.relay-beacon {
    background: rgb(11, 17, 32);
    background-image: none;
}

.terminus-terminus {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.7;
    word-break: break-word;
    color: var(--text-main);
}
.terminus-terminus,
.terminus-terminus *,
.terminus-terminus *::before,
.terminus-terminus *::after {
    box-sizing: border-box;
}

.terminus-terminus [role="navigation"],
.terminus-terminus div,
.terminus-terminus section,
.terminus-terminus article,
.terminus-terminus aside,
.terminus-terminus p,
.terminus-terminus h1,
.terminus-terminus h2,
.terminus-terminus h3,
.terminus-terminus h4,
.terminus-terminus h5,
.terminus-terminus h6,
.terminus-terminus a {
    margin: 0;
    padding: 0;
    font: inherit;
    color: inherit;
    letter-spacing: inherit;
    line-height: inherit;
}

.terminus-terminus p,
.terminus-terminus h1,
.terminus-terminus h2,
.terminus-terminus h3,
.terminus-terminus h4,
.terminus-terminus h5,
.terminus-terminus h6 {
    text-decoration: none;
}

.terminus-terminus img {
    display: block;
    max-width: 100%;
    height: auto;
    border: 0;
}

.terminus-terminus {
    box-shadow: none;
    filter: none;
    text-shadow: none;
    background-image: none;
    border-top: none;
    border-left: none;
    border-right: none;
    outline: none;
}

.terminus-terminus a,
.terminus-terminus a:hover,
.terminus-terminus a:focus,
.terminus-terminus a:active {
    background: transparent;
    box-shadow: none;
    outline: none;
    text-decoration: none;
}

.terminus-terminus{
            background: #070b16;
            border-top: 1px solid #243454;
            padding: 60px 0 40px;
            color: #94a3b8;
            font-size: 0.9rem;
        }

.terminus-terminus .terminus-terminus-domain{
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 24px;
        }

.terminus-terminus .terminus-terminus-grid{
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

.terminus-terminus .terminus-terminus-brand-name{
            font-size: 1.1rem;
            font-weight: 700;
            color: #f8fafc;
            margin-bottom: 12px;
        }

.terminus-terminus .terminus-terminus-brand-desc{
            font-size: 0.88rem;
            color: #94a3b8;
            line-height: 1.7;
        }

.terminus-terminus .terminus-terminus-col-crest{
            font-size: 0.95rem;
            font-weight: 700;
            color: #f8fafc;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

.terminus-terminus .terminus-terminus-links{
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

.terminus-terminus .terminus-terminus-anchor{
            color: #94a3b8;
            transition: color 0.25s ease;
        }

.terminus-terminus .terminus-terminus-anchor:hover{
            color: #5ae4a3;
        }

.terminus-terminus .terminus-terminus-base{
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            text-align: center;
            font-size: 0.85rem;
            color: #64748b;
        }