/* os.webservice.digital — tactical industrial mirror gateway */

:root {
  --bg-0: #050806;
  --bg-1: #0a100c;
  --bg-2: #0f1812;
  --bg-panel: #0c1410;
  --border: #1c3024;
  --border-hi: #2a4a34;
  --green: #3dff7a;
  --green-dim: #1fa84a;
  --green-muted: #6a9a78;
  --amber: #e6c84a;
  --red: #ff5a5a;
  --text: #c8e6d0;
  --text-dim: #7a9a84;
  --text-hi: #e8ffe8;
  --mono: "IBM Plex Mono", "JetBrains Mono", "SF Mono", "Consolas", ui-monospace, monospace;
  --sans: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --radius: 4px;
  --banner-h: 2.75rem;
  --max: 1120px;
  --glow: 0 0 12px rgba(61, 255, 122, 0.25);
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100dvh;
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.55;
  color: var(--text);
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(61, 255, 122, 0.06), transparent 55%),
    linear-gradient(180deg, var(--bg-0), var(--bg-1) 40%, var(--bg-0));
  background-attachment: fixed;
}

/* Scanline overlay (subtle, non-distracting) */
body::before {
  content: "";
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  opacity: 0.035;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.4) 2px,
    rgba(0, 0, 0, 0.4) 4px
  );
}

a {
  color: var(--green);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s, color 0.15s;
}
a:hover, a:focus-visible {
  color: var(--text-hi);
  border-bottom-color: var(--green-dim);
  outline: none;
}
a.ext::after {
  content: " ↗";
  font-size: 0.75em;
  opacity: 0.7;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ——— Status banner ——— */
.status-banner {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.25rem;
  min-height: var(--banner-h);
  padding: 0.45rem 1rem;
  background: linear-gradient(90deg, #061008, #0a160e 50%, #061008);
  border-bottom: 1px solid var(--border-hi);
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.55);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.status-banner .led {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: var(--glow);
}
.status-banner .led.operational {
  background: var(--green);
  animation: pulse-led 2.4s ease-in-out infinite;
}
.status-banner .led.degraded {
  background: var(--amber);
  animation: pulse-led 1.2s ease-in-out infinite;
}
.status-banner .led.maintenance,
.status-banner .led.unknown {
  background: var(--red);
  animation: pulse-led 0.9s ease-in-out infinite;
}

@keyframes pulse-led {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(0.92); }
}

.status-banner .seg {
  color: var(--text-dim);
  white-space: nowrap;
}
.status-banner .seg strong {
  color: var(--text-hi);
  font-weight: 600;
}
.status-banner .seg .state-op { color: var(--green); }
.status-banner .seg .state-deg { color: var(--amber); }
.status-banner .seg .state-mnt,
.status-banner .seg .state-unk { color: var(--red); }

.status-banner .msg {
  flex: 1 1 auto;
  min-width: 12rem;
  color: var(--green-muted);
  text-transform: none;
  letter-spacing: 0.02em;
  font-size: 0.78rem;
}

/* ——— Layout ——— */
.wrap {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

header.site-header {
  padding: 2rem 0 1.25rem;
  border-bottom: 1px solid var(--border);
}

.brand-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.brand h1 {
  margin: 0;
  font-size: clamp(1.15rem, 2.5vw, 1.45rem);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-hi);
}
.brand h1 span {
  color: var(--green);
}
.brand .tagline {
  margin: 0.4rem 0 0;
  color: var(--text-dim);
  font-size: 0.82rem;
  max-width: 42rem;
  font-family: var(--sans);
  line-height: 1.5;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.nav a {
  color: var(--green-muted);
  border-bottom: 1px solid transparent;
  padding-bottom: 0.1rem;
}
.nav a:hover, .nav a[aria-current="page"] {
  color: var(--green);
  border-bottom-color: var(--green-dim);
}

.disclaimer-bar {
  margin-top: 1rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border);
  border-left: 3px solid var(--amber);
  background: rgba(230, 200, 74, 0.04);
  color: var(--text-dim);
  font-size: 0.78rem;
  font-family: var(--sans);
}

main {
  padding: 1.75rem 0 3rem;
}

section {
  margin-bottom: 2.5rem;
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}
.section-head h2 {
  margin: 0;
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green);
}
.section-head .meta {
  color: var(--text-dim);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}

/* ——— Distro cards ——— */
.distro-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 720px) {
  .distro-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem 1.15rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.card:hover, .card:focus-within {
  border-color: var(--border-hi);
  box-shadow: 0 0 0 1px rgba(61, 255, 122, 0.08);
}

.card-top {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
}
.card-title {
  margin: 0;
  font-size: 1rem;
  color: var(--text-hi);
  letter-spacing: 0.04em;
}
.card-title .ver {
  color: var(--green);
  font-weight: 500;
}
.card-code {
  margin: 0.15rem 0 0;
  color: var(--text-dim);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}
.badge {
  display: inline-block;
  padding: 0.12rem 0.4rem;
  border: 1px solid var(--border-hi);
  border-radius: 2px;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--green-muted);
  background: rgba(61, 255, 122, 0.04);
}
.badge.lts, .badge.stable, .badge.enterprise { color: var(--green); border-color: var(--green-dim); }
.badge.rolling, .badge.current { color: var(--amber); border-color: rgba(230, 200, 74, 0.45); }

.card-desc {
  margin: 0;
  font-family: var(--sans);
  font-size: 0.88rem;
  color: var(--text-dim);
  line-height: 1.5;
}

.kv {
  display: grid;
  gap: 0.35rem;
  font-size: 0.75rem;
}
.kv-row {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: 0.4rem;
  align-items: start;
}
.kv-row .k {
  color: var(--text-dim);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.68rem;
  padding-top: 0.15rem;
}
.kv-row .v {
  color: var(--text);
  word-break: break-all;
  font-size: 0.72rem;
}
.kv-row .v.hash {
  color: var(--green-muted);
}

.hash-block {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: auto;
  padding-top: 0.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.45rem 0.75rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius);
  border: 1px solid var(--border-hi);
  background: transparent;
  color: var(--green);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.btn:hover, .btn:focus-visible {
  background: rgba(61, 255, 122, 0.08);
  border-color: var(--green-dim);
  color: var(--text-hi);
  outline: none;
  border-bottom-color: var(--green-dim);
}
.btn-primary {
  background: rgba(61, 255, 122, 0.12);
  border-color: var(--green-dim);
  color: var(--text-hi);
  box-shadow: var(--glow);
}
.btn-primary:hover, .btn-primary:focus-visible {
  background: rgba(61, 255, 122, 0.2);
}
.btn-ghost {
  color: var(--text-dim);
}
.btn.copied {
  color: var(--amber);
  border-color: rgba(230, 200, 74, 0.5);
}

code, .code {
  font-family: var(--mono);
  font-size: 0.78em;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border);
  padding: 0.1rem 0.3rem;
  border-radius: 2px;
}

pre.cmd {
  margin: 0;
  padding: 0.65rem 0.75rem;
  background: #040704;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow-x: auto;
  font-size: 0.72rem;
  color: var(--green-muted);
  white-space: pre-wrap;
  word-break: break-all;
}
pre.cmd .prompt { color: var(--green-dim); user-select: none; }

/* ——— CLI panel ——— */
.cli-panel {
  border: 1px solid var(--border-hi);
  background: linear-gradient(145deg, #08120c, #0a140e);
  border-radius: var(--radius);
  padding: 1.15rem 1.25rem;
}
.cli-panel h3 {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-hi);
}
.cli-panel p {
  margin: 0 0 0.75rem;
  font-family: var(--sans);
  color: var(--text-dim);
  font-size: 0.9rem;
}
.cli-commands {
  display: grid;
  gap: 0.5rem;
  margin-top: 0.85rem;
}
.cli-cmd-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.25rem;
}
@media (min-width: 640px) {
  .cli-cmd-row {
    grid-template-columns: 11rem 1fr;
    align-items: baseline;
  }
}
.cli-cmd-row .name {
  color: var(--green);
  font-size: 0.78rem;
}
.cli-cmd-row .desc {
  color: var(--text-dim);
  font-family: var(--sans);
  font-size: 0.85rem;
}

/* ——— FAQ / Glossary ——— */
.faq details {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-panel);
  margin-bottom: 0.45rem;
  padding: 0.55rem 0.85rem;
}
.faq summary {
  cursor: pointer;
  color: var(--text-hi);
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before {
  content: "+";
  display: inline-block;
  width: 1.1rem;
  color: var(--green);
  font-weight: 600;
}
.faq details[open] summary::before { content: "−"; }
.faq details[open] summary { margin-bottom: 0.45rem; }
.faq .answer {
  font-family: var(--sans);
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.55;
  padding-bottom: 0.25rem;
}
.faq .answer p { margin: 0 0 0.5rem; }
.faq .answer p:last-child { margin-bottom: 0; }

.glossary {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.4rem;
}
@media (min-width: 640px) {
  .glossary {
    grid-template-columns: 1fr 1fr;
  }
}
.glossary-item {
  border: 1px solid var(--border);
  background: var(--bg-panel);
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius);
}
.glossary-item dt {
  color: var(--green);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0 0 0.25rem;
}
.glossary-item dd {
  margin: 0;
  font-family: var(--sans);
  font-size: 0.85rem;
  color: var(--text-dim);
  line-height: 1.45;
}

/* ——— Footer ——— */
footer.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0 2.5rem;
  color: var(--text-dim);
  font-size: 0.75rem;
}
footer.site-footer .grid {
  display: grid;
  gap: 1rem;
}
@media (min-width: 720px) {
  footer.site-footer .grid {
    grid-template-columns: 2fr 1fr;
  }
}
footer.site-footer strong { color: var(--text); }
footer.site-footer ul {
  margin: 0.35rem 0 0;
  padding-left: 1.1rem;
}
footer.site-footer li { margin-bottom: 0.2rem; }

/* Focus visibility for a11y */
:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 2px;
}

/* ——— Hub lanes (General / IT-Security / Kubernetes) ——— */
.lane-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0 0 1rem;
}
.lane-jump-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--border-hi);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  background: var(--bg-panel);
}
.lane-jump-link span {
  color: var(--green);
  font-weight: 600;
}
.lane-jump-link:hover, .lane-jump-link:focus-visible {
  border-color: var(--green-dim);
  color: var(--text-hi);
  border-bottom-color: var(--green-dim);
}
.lane-jump-link.lane-sec {
  border-color: rgba(255, 120, 100, 0.35);
}
.lane-jump-link.lane-sec span { color: #ff9b8a; }
.lane-jump-link.lane-k8s {
  border-color: rgba(100, 180, 255, 0.4);
}
.lane-jump-link.lane-k8s span { color: #8ec8ff; }

.lane-block {
  margin: 0 0 2rem;
  padding-top: 0.25rem;
}
.lane-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem 1.25rem;
  margin: 0 0 0.85rem;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--border);
  border-left-width: 3px;
  border-radius: var(--radius);
  background: rgba(0, 0, 0, 0.25);
}
.lane-head-general { border-left-color: var(--green-dim); }
.lane-head-security { border-left-color: #ff7a6a; }
.lane-head-kubernetes { border-left-color: #5aa8ff; }
.lane-title {
  margin: 0;
  font-size: 0.88rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-hi);
}
.lane-blurb {
  margin: 0.3rem 0 0;
  font-family: var(--sans);
  font-size: 0.85rem;
  color: var(--text-dim);
  max-width: 48rem;
  line-height: 1.45;
}
.lane-count {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--green-muted);
  white-space: nowrap;
}
.badge.lane-general { color: var(--green); border-color: var(--green-dim); }
.badge.lane-security { color: #ff9b8a; border-color: rgba(255, 120, 100, 0.5); }
.badge.lane-kubernetes { color: #8ec8ff; border-color: rgba(100, 180, 255, 0.5); }
.chip.chip-lane.is-active {
  /* keep default active style */
}

/* ——— Professional filter bar ——— */
.filter-bar {
  margin: 0 0 1.15rem;
  padding: 0.85rem 0.95rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(61, 255, 122, 0.03), transparent 70%), var(--bg-panel);
}
.filter-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.65rem;
}
.filter-label {
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--green-muted);
  text-transform: uppercase;
}
.input-filter {
  font-family: var(--mono);
  font-size: 0.8rem;
  background: #040704;
  border: 1px solid var(--border-hi);
  color: var(--text-hi);
  padding: 0.45rem 0.7rem;
  border-radius: 2px;
  flex: 1 1 16rem;
  min-width: 12rem;
  max-width: 36rem;
}
.input-filter::placeholder {
  color: var(--text-dim);
  opacity: 0.85;
}
.input-filter:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 2px;
  border-color: var(--green-dim);
}
.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.65rem;
}
.chip {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-dim);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.28rem 0.65rem;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.chip:hover, .chip:focus-visible {
  color: var(--text-hi);
  border-color: var(--green-dim);
  outline: none;
}
.chip.is-active {
  color: var(--bg-0);
  background: var(--green);
  border-color: var(--green);
  box-shadow: var(--glow);
}
.filter-hint {
  margin: 0.65rem 0 0;
  font-family: var(--sans);
  font-size: 0.85rem;
  color: var(--amber);
}
.card.is-filtered-out {
  display: none !important;
}
.badge.base-debian { color: #a8c7ff; border-color: rgba(120, 160, 255, 0.45); }
.badge.base-rhel { color: #ff9b8a; border-color: rgba(255, 120, 100, 0.45); }
.badge.base-fedora { color: #8ec8ff; border-color: rgba(100, 160, 255, 0.45); }
.badge.base-suse { color: #9dffb0; border-color: rgba(100, 220, 140, 0.45); }
.badge.base-arch { color: #8ad4ff; border-color: rgba(80, 180, 255, 0.45); }
.badge.base-alpine { color: #c5a3ff; border-color: rgba(160, 120, 255, 0.45); }
.badge.base-nix { color: #7ec8e3; border-color: rgba(90, 180, 220, 0.45); }
.badge.base-independent { color: var(--amber); border-color: rgba(230, 200, 74, 0.45); }
.size-hint { color: var(--text-dim); }
.hash-code { font-size: 0.68rem; word-break: break-all; }
.verify-code { font-size: 0.65rem; word-break: break-all; }
.mt-sm { margin-top: 0.65rem; }
.mt-md { margin-top: 1rem; margin-bottom: 0; font-size: 0.82rem; }
.warn-label { color: var(--amber); }
.protocol-list {
  margin: 0;
  padding-left: 1.2rem;
  font-family: var(--sans);
  color: var(--text-dim);
  line-height: 1.65;
}
.footer-blurb {
  margin: 0.75rem 0 0;
  max-width: 40rem;
  font-family: var(--sans);
}
.footer-copy {
  margin-top: 1.25rem;
  opacity: 0.7;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  body::before { display: none; }
}