/* ==========================================================================
   GLADOS ORBITAL AEROSPACE TECHNOLOGY - CORE STYLESHEET
   Visual System: Aerospace Technology + Orbital Network + Mission Control
   Author: Glados Engineering
   ========================================================================== */

:root {
  /* Deep Space Color Palette */
  --space-deep: #07111E;
  --space-mid: #0A1624;
  --space-light: #0D1C2C;
  --panel-bg: #102235;
  --panel-elevated: #142A40;
  
  /* Text System */
  --text-primary: #F3F6F8;
  --text-secondary: #9FB0BF;
  --text-muted: #62778A;
  --text-ivory: #F5F1E8;

  /* Aerospace Technical Accents */
  --tech-line: #2C4961;
  --tech-line-bright: #3C5F78;
  --aerospace-blue: #4D9EF7;
  --nav-cyan: #6CC8C3;
  --mission-orange: #FF8A3D;
  --mission-orange-glow: rgba(255, 138, 61, 0.25);
  --aerospace-blue-glow: rgba(77, 158, 247, 0.2);

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  --font-mono: "SF Mono", "JetBrains Mono", "Roboto Mono", Consolas, "Courier New", monospace;

  /* Layout & Geometry */
  --container-width: 1240px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --transition-fast: 0.18s ease;
  --transition-base: 0.28s ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  background-color: var(--space-deep);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  background-color: var(--space-deep);
  background-image: 
    radial-gradient(circle at 15% 20%, rgba(77, 158, 247, 0.04) 0%, transparent 40%),
    radial-gradient(circle at 85% 60%, rgba(108, 200, 195, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 50% 85%, rgba(255, 138, 61, 0.02) 0%, transparent 40%),
    radial-gradient(1px 1px at 45px 80px, rgba(243, 246, 248, 0.25), transparent),
    radial-gradient(1.5px 1.5px at 160px 240px, rgba(243, 246, 248, 0.2), transparent),
    radial-gradient(1px 1px at 320px 420px, rgba(108, 200, 195, 0.3), transparent),
    radial-gradient(1px 1px at 640px 180px, rgba(243, 246, 248, 0.18), transparent),
    radial-gradient(1px 1px at 850px 380px, rgba(77, 158, 247, 0.3), transparent),
    radial-gradient(1.5px 1.5px at 1120px 140px, rgba(243, 246, 248, 0.25), transparent),
    radial-gradient(1px 1px at 1280px 480px, rgba(243, 246, 248, 0.15), transparent);
  background-size: 100% 100%, 100% 100%, 100% 100%, 700px 700px, 600px 600px, 900px 900px, 800px 800px, 750px 750px, 1000px 1000px, 850px 850px;
  background-attachment: fixed;
  overflow-x: hidden;
  position: relative;
}

/* Base Link */
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

img, svg {
  max-width: 100%;
  display: block;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Monospace Utilities */
.mono-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mono-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  background: rgba(44, 73, 97, 0.35);
  border: 1px solid var(--tech-line);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--nav-cyan);
}

.mono-tag.orange {
  background: rgba(255, 138, 61, 0.12);
  border-color: rgba(255, 138, 61, 0.4);
  color: var(--mission-orange);
}

.mono-tag.blue {
  background: rgba(77, 158, 247, 0.12);
  border-color: rgba(77, 158, 247, 0.4);
  color: var(--aerospace-blue);
}

/* Status Indicator Dot */
.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--nav-cyan);
  box-shadow: 0 0 8px var(--nav-cyan);
  display: inline-block;
  animation: pulse-dot 2.4s infinite ease-in-out;
}

.status-dot.orange {
  background-color: var(--mission-orange);
  box-shadow: 0 0 8px var(--mission-orange);
}

.status-dot.blue {
  background-color: var(--aerospace-blue);
  box-shadow: 0 0 8px var(--aerospace-blue);
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

/* Section Header */
.section-header {
  margin-bottom: 52px;
  position: relative;
}

.section-eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--aerospace-blue);
  text-transform: uppercase;
}

.section-eyebrow::before {
  content: "";
  display: block;
  width: 18px;
  height: 1px;
  background: var(--aerospace-blue);
}

.section-title {
  font-size: clamp(1.85rem, 3.5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.section-subtitle {
  margin-top: 14px;
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.7;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--mission-orange);
  color: #07111E;
  border-color: var(--mission-orange);
  box-shadow: 0 4px 18px var(--mission-orange-glow);
}

.btn-primary:hover {
  background-color: #ff9954;
  border-color: #ff9954;
  transform: translateY(-1px);
  box-shadow: 0 6px 22px rgba(255, 138, 61, 0.4);
}

.btn-secondary {
  background-color: rgba(16, 34, 53, 0.7);
  color: var(--text-primary);
  border-color: var(--aerospace-blue);
}

.btn-secondary:hover {
  background-color: rgba(77, 158, 247, 0.15);
  border-color: var(--aerospace-blue);
  color: #ffffff;
  transform: translateY(-1px);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.84rem;
}

/* ==========================================================================
   1. ORBITAL NAVIGATION BAR
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(7, 17, 30, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--tech-line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 16px;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-logo svg {
  width: 28px;
  height: 28px;
}

.brand-name {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  font-family: var(--font-sans);
}

.brand-telemetry {
  display: flex;
  flex-direction: column;
  padding-left: 12px;
  border-left: 1px solid var(--tech-line);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  line-height: 1.3;
}

.brand-telemetry span:first-child {
  color: var(--aerospace-blue);
  font-weight: 600;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  list-style: none;
}

.nav-link {
  font-size: 0.88rem;
  color: var(--text-secondary);
  font-weight: 500;
  position: relative;
  padding: 6px 0;
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--aerospace-blue);
  transition: width var(--transition-fast);
}

.nav-link:hover::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.mobile-menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--tech-line);
  padding: 8px;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  cursor: pointer;
}

.mobile-menu-toggle svg {
  width: 22px;
  height: 22px;
}

/* ==========================================================================
   2. MISSION HERO SECTION
   ========================================================================== */
.hero-section {
  padding: 70px 0 60px;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--tech-line);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.hero-mission-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 5px 12px;
  background: rgba(16, 34, 53, 0.8);
  border: 1px solid var(--tech-line-bright);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--nav-cyan);
  margin-bottom: 20px;
}

.hero-mission-badge .sep {
  color: var(--tech-line-bright);
}

.hero-title {
  font-size: clamp(2.8rem, 5.5vw, 4.8rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 22px;
}

.hero-title .brand-accent {
  display: block;
  color: var(--aerospace-blue);
  font-size: 0.45em;
  font-family: var(--font-mono);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 8px;
}

.hero-title .highlight {
  color: var(--text-ivory);
  background: linear-gradient(180deg, #FFFFFF 0%, #B4C6D4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 32px;
  max-width: 560px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

/* Mission Telemetry Readout */
.hero-telemetry {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px 20px;
  padding: 16px 20px;
  background: rgba(10, 22, 36, 0.75);
  border: 1px solid var(--tech-line);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  max-width: 540px;
}

.telemetry-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.telemetry-label {
  color: var(--text-muted);
}

.telemetry-val {
  color: var(--nav-cyan);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ==========================================================================
   HERO RIGHT: ORBITAL NETWORK SYSTEM
   ========================================================================== */
.orbital-system-container {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  max-width: 540px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.orbital-tech-frame {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(44, 73, 97, 0.6);
  pointer-events: none;
  border-radius: var(--radius-md);
}

.corner-label {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  padding: 6px 10px;
}

.corner-tl { top: 0; left: 0; border-right: 1px solid var(--tech-line); border-bottom: 1px solid var(--tech-line); }
.corner-tr { top: 0; right: 0; border-left: 1px solid var(--tech-line); border-bottom: 1px solid var(--tech-line); }
.corner-bl { bottom: 0; left: 0; border-right: 1px solid var(--tech-line); border-top: 1px solid var(--tech-line); }
.corner-br { bottom: 0; right: 0; border-left: 1px solid var(--tech-line); border-top: 1px solid var(--tech-line); }

.orbital-stage {
  width: 100%;
  height: 100%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.orbital-svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

/* SVG Orbit Lines */
.orbit-path {
  fill: none;
  stroke: var(--tech-line);
  stroke-width: 1.2;
  stroke-dasharray: 4 4;
}

.orbit-path.active {
  stroke: rgba(77, 158, 247, 0.45);
  stroke-dasharray: none;
}

.orbit-pulse-marker {
  fill: var(--mission-orange);
  filter: drop-shadow(0 0 6px var(--mission-orange));
}

/* Orbit Core */
.core-circle {
  fill: var(--panel-bg);
  stroke: var(--aerospace-blue);
  stroke-width: 2;
}

.core-circle-outer {
  fill: none;
  stroke: rgba(77, 158, 247, 0.3);
  stroke-width: 1;
  stroke-dasharray: 8 6;
  animation: rotate-core 30s linear infinite;
  transform-origin: 250px 250px;
}

@keyframes rotate-core {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.node-group {
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.node-group:hover {
  transform: scale(1.08);
}

.node-dot {
  fill: var(--nav-cyan);
  stroke: #07111E;
  stroke-width: 2;
}

.node-dot.orange {
  fill: var(--mission-orange);
}

.node-label-bg {
  fill: rgba(10, 22, 36, 0.9);
  stroke: var(--tech-line);
  stroke-width: 1;
}

.node-text-code {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  fill: var(--text-primary);
}

.node-text-sub {
  font-family: var(--font-sans);
  font-size: 9px;
  fill: var(--text-secondary);
}

/* ==========================================================================
   3. MISSION SPECIFICATION STRIP
   ========================================================================== */
.spec-strip {
  background: var(--space-mid);
  border-bottom: 1px solid var(--tech-line);
  padding: 24px 0;
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.spec-item {
  padding: 12px 18px;
  border-left: 2px solid var(--tech-line);
  background: rgba(16, 34, 53, 0.35);
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: border-color var(--transition-fast);
}

.spec-item:hover {
  border-left-color: var(--aerospace-blue);
}

.spec-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.spec-value {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1;
  color: var(--text-primary);
}

.spec-meta {
  font-size: 0.8rem;
  color: var(--nav-cyan);
}

/* ==========================================================================
   4. MISSION MODULES (PRODUCT ADVANTAGES)
   ========================================================================== */
.section-modules {
  padding: 90px 0;
  border-bottom: 1px solid var(--tech-line);
}

.modules-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.module-card {
  background: var(--panel-bg);
  border: 1px solid var(--tech-line);
  padding: 36px 32px;
  border-radius: var(--radius-sm);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-base), border-color var(--transition-base);
}

.module-card:hover {
  border-color: var(--aerospace-blue);
  transform: translateY(-3px);
}

.module-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(44, 73, 97, 0.5);
}

.module-id {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--aerospace-blue);
  letter-spacing: 0.1em;
}

.module-title {
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.module-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

.module-data-display {
  background: rgba(7, 17, 30, 0.75);
  border: 1px solid var(--tech-line);
  padding: 16px;
  border-radius: var(--radius-sm);
}

.dock-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.dock-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(20, 42, 64, 0.8);
  border: 1px solid var(--tech-line-bright);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-primary);
}

.dock-chip .chip-code {
  color: var(--nav-cyan);
}

/* ==========================================================================
   5. GLOBAL ORBIT NETWORK & FLIGHT PATH
   ========================================================================== */
.section-orbit-network {
  padding: 90px 0;
  background: linear-gradient(180deg, var(--space-deep) 0%, var(--space-mid) 100%);
  border-bottom: 1px solid var(--tech-line);
}

.flight-path-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 56px;
  padding: 20px 24px;
  background: var(--panel-bg);
  border: 1px solid var(--tech-line);
  border-radius: var(--radius-sm);
  position: relative;
}

.path-step {
  display: flex;
  align-items: center;
  gap: 14px;
  position: relative;
}

.path-step:not(:last-child)::after {
  content: "→";
  position: absolute;
  right: -8px;
  color: var(--aerospace-blue);
  font-family: var(--font-mono);
}

.step-num {
  width: 32px;
  height: 32px;
  background: rgba(77, 158, 247, 0.12);
  border: 1px solid var(--aerospace-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--aerospace-blue);
  flex-shrink: 0;
}

.step-info {
  display: flex;
  flex-direction: column;
}

.step-code {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}

.step-label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Regional Orbit Arcs */
.regions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.region-box {
  background: var(--panel-bg);
  border: 1px solid var(--tech-line);
  padding: 30px;
  border-radius: var(--radius-sm);
  position: relative;
}

.region-box-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(44, 73, 97, 0.5);
}

.region-code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--nav-cyan);
}

.region-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 4px;
}

.nodes-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.node-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: rgba(10, 22, 36, 0.6);
  border: 1px solid rgba(44, 73, 97, 0.5);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.node-row:hover {
  background: rgba(16, 34, 53, 0.9);
  border-color: var(--aerospace-blue);
}

.node-id {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--aerospace-blue);
  font-weight: 700;
}

.node-title {
  font-size: 0.9rem;
  color: var(--text-primary);
  margin-left: 10px;
}

.node-status {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--nav-cyan);
}

/* ==========================================================================
   6. DEVICE DOCKING SYSTEMS
   ========================================================================== */
.section-devices {
  padding: 90px 0;
  border-bottom: 1px solid var(--tech-line);
}

.docking-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.dock-card {
  background: var(--panel-bg);
  border: 1px solid var(--tech-line);
  padding: 28px 24px;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-base);
}

.dock-card:hover {
  border-color: var(--aerospace-blue);
  transform: translateY(-2px);
}

.dock-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}

.dock-id {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--aerospace-blue);
}

.dock-platform {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.dock-protocol {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}

.dock-foot {
  padding-top: 14px;
  border-top: 1px solid rgba(44, 73, 97, 0.5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--nav-cyan);
}

/* ==========================================================================
   7. AI & STREAMING PAYLOAD SYSTEM
   ========================================================================== */
.section-payload {
  padding: 90px 0;
  border-bottom: 1px solid var(--tech-line);
  background: var(--space-mid);
}

.payload-container {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 32px;
  align-items: stretch;
}

.payload-column {
  background: var(--panel-bg);
  border: 1px solid var(--tech-line);
  padding: 32px;
  border-radius: var(--radius-sm);
}

.payload-divider {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.payload-divider-line {
  width: 1px;
  flex: 1;
  background: linear-gradient(180deg, transparent, var(--tech-line-bright), var(--aerospace-blue), var(--tech-line-bright), transparent);
}

.payload-divider-badge {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  color: var(--aerospace-blue);
  padding: 12px 6px;
  border: 1px solid var(--tech-line);
  border-radius: var(--radius-sm);
  background: var(--space-deep);
}

.payload-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(44, 73, 97, 0.5);
}

.payload-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
}

.payload-id {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--nav-cyan);
}

.payload-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.payload-entry {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: rgba(10, 22, 36, 0.65);
  border: 1px solid rgba(44, 73, 97, 0.5);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.payload-entry:hover {
  background: rgba(16, 34, 53, 0.9);
  border-color: var(--nav-cyan);
}

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

.payload-idx {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.payload-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.payload-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--nav-cyan);
}

/* ==========================================================================
   8. PRICING: MISSION PLAN SELECTOR
   ========================================================================== */
.section-pricing {
  padding: 90px 0;
  border-bottom: 1px solid var(--tech-line);
}

.pricing-desktop-layout {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 36px;
  align-items: stretch;
}

.plan-selector-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.plan-selector-item {
  background: var(--panel-bg);
  border: 1px solid var(--tech-line);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.plan-selector-item:hover {
  border-color: var(--aerospace-blue);
  background: rgba(20, 42, 64, 0.6);
}

.plan-selector-item.active {
  border-color: var(--aerospace-blue);
  background: rgba(20, 42, 64, 0.85);
  box-shadow: inset 3px 0 0 var(--aerospace-blue);
}

.plan-selector-item.recommended.active {
  border-color: var(--mission-orange);
  box-shadow: inset 3px 0 0 var(--mission-orange);
}

.plan-selector-item.recommended .item-name {
  color: var(--mission-orange);
}

.item-left {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.item-mission-code {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}

.item-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

.item-right {
  display: flex;
  align-items: center;
  gap: 16px;
  text-align: right;
}

.item-price {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
}

.item-price small {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 400;
}

.item-quota {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--nav-cyan);
}

/* Dossier Detail Panel */
.plan-dossier-panel {
  background: var(--panel-bg);
  border: 1px solid var(--tech-line);
  border-radius: var(--radius-sm);
  padding: 36px 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
}

.plan-dossier-panel.highlight-orange {
  border-color: rgba(255, 138, 61, 0.45);
  box-shadow: 0 0 28px rgba(255, 138, 61, 0.08);
}

.dossier-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(44, 73, 97, 0.6);
}

.dossier-code {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--aerospace-blue);
  letter-spacing: 0.1em;
}

.dossier-title {
  font-size: 1.95rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-top: 4px;
}

.dossier-price-wrap {
  text-align: right;
}

.dossier-price {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
  color: var(--mission-orange);
}

.dossier-price-period {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.dossier-specs-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 24px;
  padding: 16px;
  background: rgba(7, 17, 30, 0.7);
  border: 1px solid var(--tech-line);
  border-radius: var(--radius-sm);
}

.dossier-spec-item {
  display: flex;
  flex-direction: column;
}

.dossier-spec-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
}

.dossier-spec-val {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--nav-cyan);
}

.dossier-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}

.dossier-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.dossier-feature svg {
  width: 16px;
  height: 16px;
  color: var(--aerospace-blue);
  flex-shrink: 0;
}

.dossier-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Mobile Pricing Cards */
.pricing-mobile-cards {
  display: none;
  flex-direction: column;
  gap: 20px;
}

.plan-mobile-card {
  background: var(--panel-bg);
  border: 1px solid var(--tech-line);
  border-radius: var(--radius-sm);
  padding: 24px 20px;
}

.plan-mobile-card.recommended {
  border-color: var(--mission-orange);
  background: rgba(20, 42, 64, 0.9);
}

/* ==========================================================================
   9. MISSION REPORTS (USER EXPERIENCES)
   ========================================================================== */
.section-reports {
  padding: 90px 0;
  border-bottom: 1px solid var(--tech-line);
  background: var(--space-mid);
}

.reports-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.report-card {
  background: var(--panel-bg);
  border: 1px solid var(--tech-line);
  padding: 28px 24px;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.report-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(44, 73, 97, 0.5);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.report-id {
  color: var(--aerospace-blue);
}

.report-timestamp {
  color: var(--text-muted);
}

.report-category {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 14px;
}

.report-body {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
  font-style: italic;
}

.report-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--nav-cyan);
}

/* ==========================================================================
   10. FLIGHT MANUAL FAQ
   ========================================================================== */
.section-faq {
  padding: 90px 0;
  border-bottom: 1px solid var(--tech-line);
}

.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: var(--panel-bg);
  border: 1px solid var(--tech-line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--aerospace-blue);
}

.faq-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: transparent;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  text-align: left;
  gap: 16px;
}

.faq-meta {
  display: flex;
  align-items: center;
  gap: 16px;
}

.faq-code {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--aerospace-blue);
  flex-shrink: 0;
}

.faq-question {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
}

.faq-toggle-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--text-secondary);
  border: 1px solid var(--tech-line);
  border-radius: var(--radius-sm);
  transition: transform var(--transition-fast), color var(--transition-fast);
  flex-shrink: 0;
}

.faq-item.open .faq-toggle-icon {
  transform: rotate(45deg);
  color: var(--mission-orange);
  border-color: var(--mission-orange);
}

.faq-content {
  display: none;
  padding: 0 24px 24px 64px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.75;
  border-top: 1px dashed rgba(44, 73, 97, 0.4);
  margin-top: 4px;
  padding-top: 16px;
}

.faq-item.open .faq-content {
  display: block;
}

/* ==========================================================================
   11. MISSION ARCHIVE (SEO ARTICLES)
   ========================================================================== */
.section-archive {
  padding: 90px 0;
  border-bottom: 1px solid var(--tech-line);
  background: var(--space-mid);
}

.archive-featured-box {
  background: var(--panel-bg);
  border: 1px solid var(--aerospace-blue);
  padding: 36px 40px;
  border-radius: var(--radius-sm);
  margin-bottom: 36px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 30px var(--aerospace-blue-glow);
}

.archive-featured-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 36px;
  align-items: center;
}

.featured-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.featured-title {
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
  line-height: 1.25;
}

.featured-excerpt {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

.featured-hud-graphic {
  border: 1px solid var(--tech-line);
  background: rgba(7, 17, 30, 0.7);
  padding: 24px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.hud-row {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px dashed rgba(44, 73, 97, 0.4);
  padding-bottom: 6px;
}

.hud-label {
  color: var(--text-muted);
}

.hud-val {
  color: var(--nav-cyan);
}

/* Archive List */
.archive-files-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.archive-file-card {
  background: var(--panel-bg);
  border: 1px solid var(--tech-line);
  border-radius: var(--radius-sm);
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
  transition: all var(--transition-fast);
}

.archive-file-card:hover {
  border-color: var(--aerospace-blue);
  transform: translateY(-2px);
}

.file-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.file-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--aerospace-blue);
}

.file-time {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}

.file-title {
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
}

.file-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.file-link-action {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--nav-cyan);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ==========================================================================
   12. ORBITAL AEROSPACE FOOTER
   ========================================================================== */
.site-footer {
  background-color: #050C14;
  border-top: 1px solid var(--tech-line);
  position: relative;
  overflow: hidden;
  padding: 80px 0 40px;
}

.footer-glados-watermark {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: clamp(6rem, 16vw, 15rem);
  font-weight: 900;
  letter-spacing: 0.15em;
  color: rgba(255, 255, 255, 0.018);
  pointer-events: none;
  white-space: nowrap;
  user-select: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr repeat(3, 1fr);
  gap: 48px;
  position: relative;
  z-index: 2;
  margin-bottom: 60px;
}

.footer-brand-pane {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-brand-title {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: 0.05em;
}

.footer-brand-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 340px;
}

.footer-telemetry-badge {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 14px;
  background: rgba(16, 34, 53, 0.6);
  border: 1px solid var(--tech-line);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  max-width: fit-content;
}

.footer-nav-col {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-col-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--aerospace-blue);
  text-transform: uppercase;
}

.footer-col-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col-links a {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.footer-col-links a:hover {
  color: var(--text-primary);
  padding-left: 4px;
}

/* Footer Friendly Sites */
.footer-friendly-section {
  position: relative;
  z-index: 2;
  padding: 24px 0;
  border-top: 1px solid rgba(44, 73, 97, 0.4);
  border-bottom: 1px solid rgba(44, 73, 97, 0.4);
  margin-bottom: 30px;
}

.friendly-strip {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.friendly-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.friendly-links {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.friendly-links a {
  font-size: 0.84rem;
  color: var(--nav-cyan);
  transition: color var(--transition-fast);
}

.friendly-links a:hover {
  color: var(--text-primary);
  text-decoration: underline;
}

/* Footer Bottom Strip */
.footer-bottom {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 12px;
}

/* ==========================================================================
   13. STANDALONE ARTICLE & PROTOCOL PAGE STYLES
   ========================================================================== */
.article-header {
  padding: 60px 0 40px;
  background: var(--space-mid);
  border-bottom: 1px solid var(--tech-line);
}

.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.breadcrumb-nav a {
  color: var(--aerospace-blue);
}

.breadcrumb-nav a:hover {
  text-decoration: underline;
}

.article-h1 {
  font-size: clamp(2rem, 3.8vw, 3rem);
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.article-meta-bar {
  display: flex;
  align-items: center;
  gap: 20px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.article-content-wrapper {
  padding: 60px 0 80px;
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: flex-start;
}

.article-body {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text-secondary);
}

.article-body h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 44px 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--tech-line);
}

.article-body h3 {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 30px 0 14px;
}

.article-body p {
  margin-bottom: 22px;
}

.article-body ul, .article-body ol {
  margin: 0 0 24px 24px;
}

.article-body li {
  margin-bottom: 10px;
}

.article-body strong {
  color: var(--text-primary);
}

.article-body blockquote {
  padding: 16px 20px;
  background: rgba(16, 34, 53, 0.6);
  border-left: 3px solid var(--aerospace-blue);
  border-radius: var(--radius-sm);
  margin: 28px 0;
  color: var(--text-primary);
  font-size: 0.98rem;
}

.article-cta-box {
  background: linear-gradient(135deg, var(--panel-bg) 0%, rgba(255, 138, 61, 0.1) 100%);
  border: 1px solid var(--mission-orange);
  padding: 32px;
  border-radius: var(--radius-sm);
  margin: 48px 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.article-cta-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
}

.article-cta-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.article-sidebar {
  position: sticky;
  top: 100px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sidebar-widget {
  background: var(--panel-bg);
  border: 1px solid var(--tech-line);
  padding: 24px;
  border-radius: var(--radius-sm);
}

.sidebar-widget-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--aerospace-blue);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.sidebar-article-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sidebar-article-list a {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.4;
  display: block;
}

.sidebar-article-list a:hover {
  color: var(--aerospace-blue);
}

/* ==========================================================================
   RESPONSIVE DESIGN (1440, 1024, 768, 430, 390, 375px)
   ========================================================================== */

@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .orbital-system-container {
    max-width: 440px;
  }

  .spec-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .modules-grid {
    grid-template-columns: 1fr;
  }

  .regions-grid {
    grid-template-columns: 1fr;
  }

  .docking-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .payload-container {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .payload-divider {
    display: none;
  }

  .pricing-desktop-layout {
    grid-template-columns: 1fr;
  }

  .reports-grid {
    grid-template-columns: 1fr;
  }

  .archive-featured-grid {
    grid-template-columns: 1fr;
  }

  .archive-files-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-sidebar {
    position: static;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--space-deep);
    border-bottom: 1px solid var(--tech-line);
    flex-direction: column;
    padding: 20px 24px;
    gap: 16px;
  }

  .nav-links.mobile-open {
    display: flex;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .brand-telemetry {
    display: none;
  }

  .flight-path-strip {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .path-step:not(:last-child)::after {
    display: none;
  }

  .docking-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .friendly-strip {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  /* Switch Pricing to Mobile Cards on <= 768px */
  .pricing-desktop-layout {
    display: none;
  }

  .pricing-mobile-cards {
    display: flex;
  }

  .faq-content {
    padding-left: 24px;
  }
}

@media (max-width: 430px) {
  .container {
    padding: 0 16px;
  }

  .hero-section {
    padding: 40px 0;
  }

  .hero-title {
    font-size: 2.3rem;
  }

  .hero-telemetry {
    grid-template-columns: 1fr;
  }

  .orbital-system-container {
    max-width: 320px;
  }

  .spec-grid {
    grid-template-columns: 1fr;
  }

  .module-card {
    padding: 24px 20px;
  }

  .region-box {
    padding: 20px 16px;
  }

  .archive-featured-box {
    padding: 24px 20px;
  }
}