:root {
  --bg: #0f1720;
  --panel: rgba(18, 31, 43, 0.92);
  --panel-soft: rgba(23, 41, 56, 0.88);
  --stroke: rgba(155, 184, 201, 0.18);
  --text: #edf4f8;
  --muted: #9db7c8;
  --accent: #f06c32;
  --accent-soft: rgba(240, 108, 50, 0.15);
  --ok: #2bb673;
}

html {
  font-size: 15px;
  min-height: 100%;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(240, 108, 50, 0.14), transparent 30%),
    radial-gradient(circle at bottom left, rgba(65, 112, 255, 0.1), transparent 28%),
    linear-gradient(180deg, #081019 0%, #101c28 100%);
}

a {
  color: #ffb28a;
}

a:hover {
  color: #ffd2b8;
}

.shell-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(7, 13, 19, 0.72);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--stroke);
}

.shell-nav {
  padding: 1rem 1.5rem;
}

.shell-brand {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.shell-link {
  color: var(--muted) !important;
}

.shell-link:hover,
.shell-link:focus {
  color: var(--text) !important;
}

.shell-container {
  padding: 2rem 1.2rem 3rem;
}

.shell-footer {
  padding: 0 1.5rem 2rem;
  color: var(--muted);
}

.page-shell {
  max-width: 1440px;
  margin: 0 auto;
}

.narrow-shell {
  max-width: 980px;
}

.page-hero {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  align-items: end;
  padding: 2rem;
  border: 1px solid var(--stroke);
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(20, 34, 47, 0.95), rgba(13, 24, 34, 0.88));
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.2);
}

.compact-hero {
  margin-bottom: 1.5rem;
}

.eyebrow {
  margin: 0 0 0.65rem;
  color: var(--accent);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.page-hero h1,
.panel-head h2,
.status-card h2 {
  margin: 0;
}

.lede,
.placeholder-copy,
.subsystem-row p,
.gps-box p {
  color: var(--muted);
}

.action-cluster {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: end;
}

.status-grid,
.content-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.25rem;
}

.status-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.content-grid {
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
}

.status-card,
.panel-card {
  border: 1px solid var(--stroke);
  border-radius: 24px;
  background: var(--panel);
  padding: 1.35rem;
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.16);
}

.status-label {
  margin: 0 0 0.5rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1rem;
}

.panel-head span {
  color: var(--muted);
}

.hero-media,
.thumb-card img,
.video-frame {
  width: 100%;
  border-radius: 16px;
  object-fit: cover;
  border: 1px solid var(--stroke);
}

.hero-media,
.video-frame {
  min-height: 260px;
  background: rgba(0, 0, 0, 0.24);
}

.hls-player {
  display: grid;
  gap: 0.85rem;
}

.video-status {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.thumb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.9rem;
}

.thumb-card {
  display: block;
  padding: 0.75rem;
  border-radius: 18px;
  background: var(--panel-soft);
  text-decoration: none;
}

.thumb-card span {
  display: block;
  margin-top: 0.65rem;
  font-size: 0.85rem;
}

.subsystem-list {
  display: grid;
  gap: 0.8rem;
}

.subsystem-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: start;
  padding: 0.85rem 0.95rem;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
}

.subsystem-row p {
  margin: 0.25rem 0 0;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: #ffd1bb;
  font-size: 0.82rem;
  white-space: nowrap;
}

.gps-box,
.settings-section {
  margin-top: 1rem;
}

.stub-section {
  border-top: 1px solid var(--stroke);
  padding-top: 1rem;
}

.form-panel {
  display: grid;
  gap: 1rem;
}

.panel-actions {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
}

.btn-primary:hover,
.btn-primary:focus {
  background: #ff834f;
  border-color: #ff834f;
}

.btn-outline-light {
  border-color: rgba(255, 255, 255, 0.25);
}

.form-control,
.form-check-input,
.table {
  background-color: rgba(255, 255, 255, 0.04);
}

.form-control,
.form-check-input {
  border-color: var(--stroke);
  color: var(--text);
}

.form-control:focus,
.form-check-input:focus,
.btn:focus,
.btn:active:focus,
.btn-link.nav-link:focus {
  box-shadow: 0 0 0 0.18rem rgba(240, 108, 50, 0.35);
  border-color: rgba(240, 108, 50, 0.8);
}

.form-control::placeholder {
  color: rgba(237, 244, 248, 0.5);
}

.table-dark {
  --bs-table-bg: transparent;
  --bs-table-striped-bg: rgba(255, 255, 255, 0.02);
  --bs-table-color: var(--text);
  --bs-table-border-color: var(--stroke);
}

@media (max-width: 768px) {
  .page-hero,
  .panel-actions {
    flex-direction: column;
    align-items: start;
  }

  .action-cluster {
    justify-content: start;
  }

  .shell-container {
    padding-inline: 0.8rem;
  }
}