/* ═══════════════════════════════════════════════════════════
   MU-LABS — mu-labs.dev
   "Session, editorial — terminal as accent"

   Rail on the left, prose on the right; the terminal is the
   frame, not the content. Colour comes from a terminal palette
   where each hue belongs to a section, never a single accent.
   ═══════════════════════════════════════════════════════════ */

@font-face {
  font-family: 'DM Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('dm-mono-400.woff2') format('woff2');
}
@font-face {
  font-family: 'DM Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('dm-mono-500.woff2') format('woff2');
}
@font-face {
  font-family: 'Karla';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('karla-var.woff2') format('woff2');
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ══════════════════════════════════════════
   TOKENS
   ══════════════════════════════════════════ */
:root {
  --mono: 'DM Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --sans: 'Karla', system-ui, sans-serif;

  --tb-h: 34px;
  --sb-h: 26px;
  --rail-w: 270px;
  --frame: 1000px;

  /* night */
  --bg:      #191A20;
  --bg-2:    #1E1F27;
  --panel:   #22242D;
  --line:    #2E3038;
  --line-2:  #3A3D47;
  --fg:      #D7D9E0;
  --fg-2:    #9DA1AC;
  --fg-3:    #6B6F7B;
  --fg-4:    #4A4D57;
  --cyan:    #6FC3C9;
  --blue:    #7EA6E0;
  --amber:   #D9A45B;
  --green:   #8CBE7A;
  --red:     #D9736A;
  --violet:  #B08ECC;
  --bar-bg:  #22242D;
  --dot-rgb: 157, 161, 172;
  color-scheme: dark;
}

:root[data-theme="day"] {
  --bg:      #F5F5F3;
  --bg-2:    #EDEDEA;
  --panel:   #FFFFFF;
  --line:    #DEDEDA;
  --line-2:  #C6C6C1;
  --fg:      #23252B;
  --fg-2:    #55585F;
  --fg-3:    #7E828A;
  --fg-4:    #A9ADB4;
  --cyan:    #1F7A83;
  --blue:    #3A66AC;
  --amber:   #8E6218;
  --green:   #4A7A38;
  --red:     #B2453C;
  --violet:  #7C5691;
  --bar-bg:  #E6E6E2;
  --dot-rgb: 85, 88, 95;
  color-scheme: light;
}

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--tb-h) + 18px); -webkit-text-size-adjust: 100%; }

body {
  background: var(--bg);
  color: var(--fg-2);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  min-height: 100vh;
  overflow-x: hidden;
  padding-bottom: var(--sb-h);
  -webkit-font-smoothing: antialiased;
}

/* the drifting dot field sits behind everything */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.5;
  background-image: radial-gradient(circle, rgba(var(--dot-rgb), 0.10) 1px, transparent 1px);
  background-size: 26px 26px;
  animation: dotDrift 26s linear infinite;
}

::selection { background: var(--cyan); color: var(--bg); }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }
a { color: inherit; }

.skip {
  position: fixed;
  top: -60px; left: 14px;
  z-index: 300;
  background: var(--panel);
  color: var(--fg);
  font-family: var(--mono);
  font-size: 0.78rem;
  padding: 9px 14px;
  border: 1px solid var(--line-2);
  text-decoration: none;
  transition: top 0.2s;
}
.skip:focus-visible { top: 14px; }

/* ══════════════════════════════════════════
   KEYFRAMES
   ══════════════════════════════════════════ */
@keyframes blink { 0%, 50% { opacity: 1; } 50.01%, 100% { opacity: 0; } }
@keyframes pulseDot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(140, 190, 122, 0.55); }
  70%      { box-shadow: 0 0 0 6px rgba(140, 190, 122, 0); }
}
@keyframes dotDrift { 0% { background-position: 0 0; } 100% { background-position: 36px 36px; } }
@keyframes revealLeft { from { opacity: 0; transform: translateX(-14px); } to { opacity: 1; transform: none; } }
@keyframes floatGlow { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-5px); } }
@keyframes matrixFall { from { transform: translateY(0); opacity: 1; } to { transform: translateY(110vh); opacity: 0; } }
@keyframes matrixTextIn {
  0%   { opacity: 0; transform: translate(-50%, -45%) scale(0.9); }
  15%  { opacity: 1; transform: translate(-50%, -50%) scale(1); }
  85%  { opacity: 1; }
  100% { opacity: 0; }
}
@keyframes textGradient { 0% { background-position: 0% 50%; } 100% { background-position: 200% 50%; } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ══════════════════════════════════════════
   BOOT OVERLAY
   ══════════════════════════════════════════ */
.boot {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: #0b0c0f;
  color: var(--violet);
  font-family: var(--mono);
  font-size: 13px;
  line-height: 2;
  padding: 30px;
  cursor: pointer;
  transition: opacity 0.6s ease;
}
.boot[hidden] { display: none; }
.boot.done { opacity: 0; visibility: hidden; }
.boot-lines div { margin-bottom: 4px; }
.boot-cursor {
  display: inline-block;
  width: 8px; height: 15px;
  background: var(--violet);
  vertical-align: text-bottom;
  animation: blink 1s steps(1) infinite;
}
.boot-hint {
  position: absolute;
  bottom: 22px; left: 30px; right: 30px;
  font-size: 10.5px;
  color: #463d4a;
}

/* ══════════════════════════════════════════
   MATRIX EASTER EGG
   ══════════════════════════════════════════ */
.matrix {
  position: fixed;
  inset: 0;
  z-index: 190;
  background: rgba(9, 11, 9, 0.86);
  overflow: hidden;
  pointer-events: none;
  font-family: var(--mono);
  font-size: 13px;
  color: #8CBE7A;
  line-height: 1.3;
}
.matrix[hidden] { display: none; }
.matrix-cols span {
  position: absolute;
  top: -220px;
  white-space: pre;
  animation: matrixFall linear infinite;
}
.matrix-text {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  white-space: nowrap;
  animation: matrixTextIn 3.4s ease both;
}
.matrix-t1 { font-size: 20px; color: #e9f5e5; text-shadow: 0 0 10px #8CBE7A; }
.matrix-t2 { font-size: 12px; color: #8CBE7A; margin-top: 8px; }

/* ══════════════════════════════════════════
   TITLEBAR
   ══════════════════════════════════════════ */
.titlebar {
  position: sticky;
  top: 0;
  z-index: 20;
  height: var(--tb-h);
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-3);
}

/* every bar aligns to the same centred frame as the layout */
.bar-in {
  max-width: var(--frame);
  height: 100%;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.tb-mu { color: var(--violet); font-weight: 500; }
.tb-name { color: var(--fg-2); }
.tb-right { margin-left: auto; display: flex; gap: 16px; align-items: center; }
.tb-clock { color: var(--fg-4); font-size: 11px; font-variant-numeric: tabular-nums; }
.tb-scheme {
  font-family: var(--mono);
  font-size: 11px;
  background: none;
  border: none;
  color: var(--fg-3);
  cursor: pointer;
  padding: 2px 4px;
  transition: color 0.18s;
}
.tb-scheme:hover { color: var(--violet); }

/* ══════════════════════════════════════════
   LAYOUT
   ══════════════════════════════════════════ */
.layout {
  position: relative;
  z-index: 1;
  max-width: var(--frame);
  margin: 0 auto;
  display: flex;
  align-items: flex-start;
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
}

.rail {
  position: sticky;
  top: var(--tb-h);
  flex-shrink: 0;
  width: var(--rail-w);
  height: calc(100vh - var(--tb-h) - var(--sb-h));
  border-right: 1px solid var(--line);
  background: var(--bg-2);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 22px 18px;
  overflow-y: auto;
}

.brand {
  font-weight: 700;
  font-size: 20px;
  margin-bottom: 2px;
  background: linear-gradient(90deg, var(--green), var(--blue), var(--violet), var(--red), var(--amber), var(--cyan), var(--green));
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: textGradient 8s linear infinite;
  width: fit-content;
}
.brand-sub {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--fg-4);
  margin-bottom: 18px;
}

.statcard {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--fg-3);
  border: 1px solid var(--line);
  padding: 9px 11px;
  margin-bottom: 20px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 10px;
  animation: floatGlow 5s ease-in-out infinite;
}
.statcard-k { color: var(--fg-4); }
.statcard-v { color: var(--fg-2); font-variant-numeric: tabular-nums; }

.rail-nav { display: flex; flex-direction: column; }
.rail-nav a {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--mono);
  font-size: 12.5px;
  padding: 8px 4px 8px 10px;
  text-decoration: none;
  color: var(--fg-3);
  border-left: 3px solid transparent;
  transition: border-color 0.18s, color 0.18s, background 0.18s;
}
.rail-nav a svg { width: 15px; height: 15px; flex-shrink: 0; transition: color 0.18s; }
.rail-nav a:hover { color: var(--fg); border-left-color: var(--fg-3); }
.rail-nav a.on { background: var(--bg); }
.rail-nav a.on[data-sec="whoami"]  { color: var(--green);  border-left-color: var(--green); }
.rail-nav a.on[data-sec="domain"]  { color: var(--blue);   border-left-color: var(--blue); }
.rail-nav a.on[data-sec="work"]    { color: var(--violet); border-left-color: var(--violet); }
.rail-nav a.on[data-sec="bounty"]  { color: var(--red);    border-left-color: var(--red); }
.rail-nav a.on[data-sec="lab"]     { color: var(--cyan);   border-left-color: var(--cyan); }
.rail-nav a.on[data-sec="offline"] { color: var(--amber);  border-left-color: var(--amber); }
.rail-nav a.on[data-sec="contact"] { color: var(--cyan);   border-left-color: var(--cyan); }

.cmdbar {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--fg-4);
  border: 1px solid var(--line);
  padding: 7px 9px;
  margin-bottom: 8px;
}
.cmd-in {
  background: none;
  border: none;
  outline: none;
  color: var(--fg);
  font-family: var(--mono);
  font-size: 11px;
  flex: 1;
  min-width: 0;
}
.cmd-in::placeholder { color: var(--fg-4); }
.cmd-msg {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--violet);
  min-height: 14px;
  line-height: 1.35;
  word-break: break-word;
}

/* ══════════════════════════════════════════
   MAIN
   ══════════════════════════════════════════ */
.main { flex: 1; min-width: 0; }
.content { max-width: 620px; padding: 40px 44px 70px 40px; }

.sec { scroll-margin-top: calc(var(--tb-h) + 18px); }
.sec + .sec { margin-top: 50px; }

.kick {
  font-family: var(--mono);
  font-size: 11.5px;
  margin-bottom: 14px;
}
.k-green  { color: var(--green); }
.k-blue   { color: var(--blue); }
.k-violet { color: var(--violet); }
.k-red    { color: var(--red); }
.k-cyan   { color: var(--cyan); }
.k-amber  { color: var(--amber); }
#whoami .kick { margin-bottom: 16px; }

.lead {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.22;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: -0.015em;
  margin-bottom: 22px;
  text-wrap: pretty;
}

.body { font-size: 16px; line-height: 1.75; color: var(--fg-2); }
.body + .body { margin-top: 14px; }
.body strong { color: var(--fg); font-weight: 600; }
.body em { font-style: normal; color: var(--violet); }

.kv {
  display: grid;
  grid-template-columns: 8em 1fr;
  gap: 9px 16px;
  margin-top: 20px;
  font-family: var(--mono);
  font-size: 12.5px;
}
.kv dt { color: var(--fg-3); }
.kv dd { color: var(--fg); }
.kv dd.v-amber { color: var(--amber); }
.kv dd.v-green { color: var(--green); }

/* category cards */
.cats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px 28px;
  margin-top: 22px;
}
.cat-h {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 400;
  border-bottom: 1px solid var(--line);
  padding-bottom: 6px;
  margin-bottom: 8px;
}
.cat-h svg { width: 14px; height: 14px; flex-shrink: 0; }
.c-violet { color: var(--violet); }
.c-blue   { color: var(--blue); }
.c-red    { color: var(--red); }
.c-cyan   { color: var(--cyan); }
.c-amber  { color: var(--amber); }
.cat-p { font-size: 14.5px; line-height: 1.6; color: var(--fg-2); }
.cat-h-wide { margin-top: 20px; }
.cat-p-wide { margin-bottom: 22px; }
.cats + .cat-h { margin-top: 20px; }

.callout {
  border-left: 2px solid var(--amber);
  background: var(--bg-2);
  padding: 13px 16px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--fg-2);
  margin-top: 4px;
}
.callout b { color: var(--amber); font-weight: 600; }
.body + .callout { margin-top: 20px; }

.lines { display: flex; flex-direction: column; gap: 10px; margin-top: 18px; }
.lines p { font-size: 14.5px; line-height: 1.6; color: var(--fg-2); }
.lines b { color: var(--fg); font-weight: 600; }

/* hosts */
.hosts { border: 1px solid var(--line); margin-top: 20px; }
.host {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-bottom: 1px solid var(--line);
  transition: background 0.18s;
}
.host:last-child { border-bottom: none; }
.host:hover { background: var(--bg-2); }
.dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
  border: 1px solid var(--fg-4);
}
.dot.up { background: var(--green); border-color: var(--green); animation: pulseDot 2.2s infinite; }
.dot.up.d2 { animation-delay: 0.4s; }
.host-n {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--fg);
  width: 120px;
  flex-shrink: 0;
}
.host-d { font-size: 14px; color: var(--fg-2); line-height: 1.55; }

.flags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px 14px;
  margin-top: 16px;
  font-family: var(--mono);
  font-size: 11px;
}
.flags span {
  color: var(--fg-3);
  border-bottom: 1px solid var(--line-2);
  padding-bottom: 1px;
  transition: color 0.18s, border-color 0.18s;
}
.flags span:hover { color: var(--cyan); border-color: var(--cyan); }

/* offline rows */
.rows { display: flex; flex-direction: column; gap: 14px; margin-top: 18px; }
.rows .row { display: flex; gap: 12px; align-items: flex-start; }
.row-i { width: 16px; height: 16px; flex-shrink: 0; margin-top: 4px; color: var(--amber); }
.rows p { font-size: 14.5px; line-height: 1.6; color: var(--fg-2); }
.rows b { color: var(--fg); font-weight: 600; }

/* contact */
.channels {
  display: flex;
  flex-direction: column;
  gap: 11px;
  margin: 18px 0 20px;
  font-family: var(--mono);
  font-size: 13px;
}
.ch { display: flex; align-items: center; gap: 10px; color: var(--blue); }
.ch svg { width: 15px; height: 15px; flex-shrink: 0; }
.ch span { min-width: 0; word-break: break-word; }
.ch a { color: var(--blue); text-decoration: none; border-bottom: 1px solid transparent; }
.ch a:hover { border-bottom-color: currentColor; }
.ch-dim { color: var(--fg-3); }
.ch-key { color: var(--fg); }

.keypanel { border: 1px solid var(--line); }
.keypanel-bar {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--fg-3);
  padding: 8px 15px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-2);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.keypanel-act { display: flex; gap: 6px; }
.btn {
  font-family: var(--mono);
  font-size: 11px;
  padding: 4px 10px;
  background: none;
  border: 1px solid var(--line-2);
  color: var(--fg-2);
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: color 0.18s, border-color 0.18s;
}
.btn:hover { color: var(--violet); border-color: var(--violet); }
.keyblock {
  padding: 15px;
  font-family: var(--mono);
  font-size: 9.5px;
  line-height: 1.5;
  color: var(--fg-4);
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 100px;
  overflow-y: auto;
}
.keyblock::-webkit-scrollbar { width: 3px; }
.keyblock::-webkit-scrollbar-thumb { background: var(--line-2); }

/* ══════════════════════════════════════════
   FOOTER
   ══════════════════════════════════════════ */
.foot {
  margin-top: 48px;
  border-top: 1px solid var(--line);
  padding: 20px 0 4px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--fg-4);
}
.foot-line { display: flex; flex-wrap: wrap; gap: 6px 16px; }

.legal { margin-top: 12px; max-width: 440px; }
.legal summary { list-style: none; cursor: pointer; color: var(--fg-3); padding: 6px 0; }
.legal summary::-webkit-details-marker { display: none; }
.legal summary::before { content: '[+] '; color: var(--fg-4); }
.legal[open] summary::before { content: '[-] '; }
.legal summary:hover { color: var(--cyan); }
.legal-body {
  padding: 8px 0 0 14px;
  border-left: 1px solid var(--line);
  margin-left: 2px;
  line-height: 1.85;
}

.gate { margin-top: 12px; }
.gate-row { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.gate-q { color: var(--amber); }
.gate-in {
  background: var(--bg-2);
  border: 1px solid var(--line-2);
  color: var(--fg);
  padding: 4px 8px;
  width: 64px;
  outline: none;
  font-family: var(--mono);
  font-size: 11px;
}
.gate-in:focus { border-color: var(--cyan); }
.gate-err { color: var(--red); margin-top: 8px; display: none; }
.gate-out { display: none; margin-top: 12px; color: var(--fg-2); line-height: 1.9; }
.gate-out b { color: var(--fg); font-weight: 500; display: block; margin-bottom: 4px; }

/* ══════════════════════════════════════════
   STATUS BAR
   ══════════════════════════════════════════ */
.statusbar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  height: var(--sb-h);
  z-index: 30;
  background: var(--bar-bg);
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--fg-4);
}
.statusbar .bar-in { gap: 14px; }
.sb-mode { color: var(--violet); }
.sb-pos { font-variant-numeric: tabular-nums; }

/* ══════════════════════════════════════════
   REVEAL
   ══════════════════════════════════════════ */
.rv { opacity: 0; transform: translateX(-14px); }
.rv.in { animation: revealLeft 0.6s ease both; }
@media (prefers-reduced-motion: reduce) {
  .rv { opacity: 1; transform: none; }
}

/* ══════════════════════════════════════════
   PRINT
   ══════════════════════════════════════════ */
@media print {
  .titlebar, .statusbar, .rail, .boot, .matrix, .skip, .btn { display: none !important; }
  body { background: #fff; color: #000; padding: 0; }
  body::before { display: none; }
  .content { margin: 0; max-width: none; }
  .rv { opacity: 1; transform: none; }
}

/* ══════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════ */
@media (max-width: 1040px) {
  .layout { border-left: none; border-right: none; }
}

@media (max-width: 1080px) {
  .content { padding-left: 32px; padding-right: 32px; }
}

@media (max-width: 900px) {
  .layout { display: block; }
  .rail {
    position: static;
    width: auto;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--line);
    padding: 18px 20px;
  }
  .rail-top { display: flex; flex-direction: column; }
  .rail-nav {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 2px 4px;
    margin-bottom: 14px;
  }
  .rail-nav a {
    padding: 6px 10px;
    border-left: none;
    border-bottom: 2px solid transparent;
  }
  .rail-nav a:hover { border-left-color: transparent; border-bottom-color: var(--fg-3); }
  .rail-nav a.on { background: none; }
  .rail-nav a.on[data-sec="whoami"]  { border-bottom-color: var(--green);  border-left-color: transparent; }
  .rail-nav a.on[data-sec="domain"]  { border-bottom-color: var(--blue);   border-left-color: transparent; }
  .rail-nav a.on[data-sec="work"]    { border-bottom-color: var(--violet); border-left-color: transparent; }
  .rail-nav a.on[data-sec="bounty"]  { border-bottom-color: var(--red);    border-left-color: transparent; }
  .rail-nav a.on[data-sec="lab"]     { border-bottom-color: var(--cyan);   border-left-color: transparent; }
  .rail-nav a.on[data-sec="offline"] { border-bottom-color: var(--amber);  border-left-color: transparent; }
  .rail-nav a.on[data-sec="contact"] { border-bottom-color: var(--cyan);   border-left-color: transparent; }
  .statcard { animation: none; }
  .rail-bottom { margin-top: 14px; }
  .content { padding: 28px 20px 60px; max-width: none; }
}

@media (max-width: 620px) {
  .cats { grid-template-columns: 1fr; gap: 18px; }
  .kv { grid-template-columns: 1fr; gap: 2px; }
  .kv dt { color: var(--fg-4); margin-top: 8px; }
  .host { flex-wrap: wrap; }
  .host-n { width: auto; }
  .host-d { flex-basis: 100%; padding-left: 19px; }
  .statcard { grid-template-columns: auto auto; justify-content: start; }
  .tb-name { display: none; }
}