/* Flintstone lab chrome — macOS Liquid Glass / Terminal.app analog.
   Guest VGA remains 80×25 text mode; this file styles the host page. */

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("fonts/inter-latin-wght-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 100 800;
  font-display: swap;
  src: url("fonts/jetbrains-mono-latin-wght-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Symbols Nerd Font Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/nerd-symbols-powerline.woff2") format("woff2");
}

:root {
  color-scheme: dark;
  --font-ui: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Helvetica Neue", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", "Cascadia Code", "Cascadia Mono", ui-monospace, monospace;
  --font-nerd: "Symbols Nerd Font Mono", var(--font-mono);
  --text: #f5f5f7;
  --text-secondary: rgba(245, 245, 247, 0.72);
  --text-tertiary: rgba(245, 245, 247, 0.5);
  --accent: #0a84ff;
  --accent-fill: #0a84ff;
  --ok: #30d158;
  --warn: #ffd60a;
  --danger: #ff453a;
  --glass-fill: rgba(255, 255, 255, 0.12);
  --glass-fill-strong: rgba(28, 28, 30, 0.48);
  --glass-tint: rgba(80, 140, 220, 0.08);
  --glass-stroke: rgba(255, 255, 255, 0.34);
  --glass-highlight: rgba(255, 255, 255, 0.55);
  --glass-blur: 42px;
  --glass-sat: 1.8;
  --radius-window: 18px;
  --radius-control: 11px;
  --radius-pill: 999px;
  --shadow-window: 0 28px 80px rgba(0, 0, 0, 0.38), 0 2px 10px rgba(0, 0, 0, 0.18);
  --titlebar-h: 3.25rem;
}

@supports (color: color(display-p3 1 1 1)) {
  :root {
    --accent: color(display-p3 0.04 0.52 1);
    --ok: color(display-p3 0.19 0.82 0.35);
    --warn: color(display-p3 1 0.84 0.04);
    --danger: color(display-p3 1 0.27 0.23);
    --text: color(display-p3 0.96 0.96 0.97);
  }
}

* { box-sizing: border-box; }

html, body { min-height: 100%; }

body {
  margin: 0;
  color: var(--text);
  font: 14px/1.45 var(--font-ui);
  letter-spacing: -0.01em;
  background-color: #1a2744;
  background-image:
    radial-gradient(1200px 700px at 8% -10%, rgba(255, 186, 214, 0.55), transparent 55%),
    radial-gradient(900px 640px at 92% 8%, rgba(88, 186, 255, 0.5), transparent 58%),
    radial-gradient(800px 520px at 70% 100%, rgba(120, 90, 255, 0.42), transparent 55%),
    radial-gradient(640px 420px at 20% 90%, rgba(64, 220, 190, 0.35), transparent 50%),
    linear-gradient(165deg, #4a6fa5 0%, #2c3e6b 42%, #1b2a4a 100%);
  background-attachment: fixed;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.18), transparent 28%),
    radial-gradient(circle at 80% 70%, rgba(255, 255, 255, 0.08), transparent 32%);
  mix-blend-mode: soft-light;
}

.lab-shell {
  position: relative;
  z-index: 1;
  width: min(86rem, calc(100% - 1.5rem));
  margin: 1.5rem auto 2.25rem;
}

.os-window {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-window);
  background: var(--glass-fill-strong);
  background-image: linear-gradient(180deg, var(--glass-tint), transparent 42%);
  border: 1px solid var(--glass-stroke);
  box-shadow: var(--shadow-window), inset 0 1px 0 var(--glass-highlight);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
}

.os-window::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 7.5rem;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.22), transparent);
  mix-blend-mode: overlay;
}

.titlebar {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 0.85rem;
  min-height: var(--titlebar-h);
  padding: 0.55rem 0.95rem 0.45rem 0.85rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
.status-badge { justify-self: end; }

.window-title {
  margin: 0;
  text-align: left;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}

.window-title span {
  color: var(--text-secondary);
  font-weight: 500;
}

.lede {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.78rem;
}

.status-badge {
  min-width: 10.5rem;
  padding: 0.35rem 0.7rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  display: grid;
  gap: 0.05rem;
}

.status-badge span:first-child {
  color: var(--text-tertiary);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

#status { margin: 0; font-weight: 600; font-size: 0.82rem; color: var(--warn); }
#status.blocked,
:root[data-lab-state="blocked"] #status,
:root[data-lab-state="failed"] #status { color: var(--danger); }
:root[data-lab-state="ready"] #status { color: var(--ok); }
:root[data-lab-state="booting"] #status { color: var(--accent); }

.toolbar {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.85rem;
  align-items: center;
  padding: 0.65rem 0.95rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.meta {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.45rem;
  margin: 0;
}

.meta div {
  padding: 0.4rem 0.55rem;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.meta dt {
  margin: 0;
  color: var(--text-tertiary);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.meta dd {
  margin: 0.12rem 0 0;
  word-break: break-word;
  font-variant-numeric: tabular-nums;
  font-size: 0.8rem;
}

#controls,
#capabilities,
#session-tabs,
.accounts form,
.guest-cmd form,
.server-panel form,
.server-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0;
}

#controls { justify-content: flex-end; }

button, input {
  appearance: none;
  font: inherit;
  color: var(--text);
}

#controls button,
#session-tabs button,
.accounts button,
.guest-cmd button,
.server-panel button {
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 0.42rem 0.78rem;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.8rem;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.28);
}

#controls button:hover,
#session-tabs button:hover,
.accounts button:hover,
.guest-cmd button:hover,
.server-panel button:hover {
  background: rgba(255, 255, 255, 0.2);
}

#controls button:active { transform: translateY(0.5px); }

#controls button:disabled,
.guest-cmd button:disabled,
.guest-cmd input:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

#boot, #account-register, .guest-cmd button[type="submit"], .server-panel button[type="submit"] {
  background: color-mix(in srgb, var(--accent) 72%, white 0%);
  border-color: color-mix(in srgb, var(--accent) 55%, white 20%);
}

#poweroff { color: #ffd7d4; }

input[type="text"],
input[type="password"],
input:not([type]) {
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(0, 0, 0, 0.28);
  border-radius: 10px;
  padding: 0.42rem 0.7rem;
  min-width: 8rem;
}

input:focus, #screen:focus {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 45%, transparent);
}

.workspace {
  display: grid;
  grid-template-columns: minmax(16.5rem, 20rem) minmax(0, 1fr);
  gap: 0.85rem;
  padding: 0.85rem;
  align-items: start;
}

.sidebar {
  display: grid;
  gap: 0.75rem;
}

.glass-card {
  position: relative;
  border-radius: var(--radius-control);
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(24px) saturate(1.5);
  -webkit-backdrop-filter: blur(24px) saturate(1.5);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.22);
  padding: 0.75rem 0.85rem;
}

.glass-card h2,
.console-head h2 {
  margin: 0 0 0.35rem;
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.glass-card p,
.glass-card label,
#runtime-mode {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.78rem;
}

#runtime-mode { padding: 0 0.1rem; }

#capabilities { display: grid; gap: 0.3rem; }
#capabilities div {
  padding: 0.28rem 0.45rem;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.18);
  font-size: 0.75rem;
}
#capabilities .cap-on { color: var(--ok); }
#capabilities .cap-off { color: var(--text-tertiary); }

.guest-cmd form { align-items: center; }
.guest-cmd input { min-width: min(14rem, 100%); flex: 1; }

#session-tabs button[aria-current="true"] {
  background: rgba(10, 132, 255, 0.35);
  border-color: rgba(10, 132, 255, 0.7);
  color: #fff;
}

.term-stack { display: grid; gap: 0.75rem; min-width: 0; }

.crt {
  padding: 0;
  overflow: hidden;
}

.bezel-bar,
.console-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  color: var(--text-secondary);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 0.55rem 0.75rem 0.4rem;
}

.bezel-bar { text-transform: none; }

#screen {
  position: relative;
  min-height: 25rem;
  margin: 0 0.65rem;
  border-radius: 10px;
  background: #1c1c1e;
  overflow: hidden;
  outline: none;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08), 0 10px 28px rgba(0, 0, 0, 0.28);
}

#display-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  margin: 0;
  color: var(--text-tertiary);
  font: 13px/1.5 var(--font-mono);
  text-align: center;
  padding: 2rem;
}

#display-placeholder[hidden] { display: none !important; }

#wasm-term {
  margin: 0;
  min-height: 32rem;
  padding: 0.7rem 0.85rem;
  color: #d2d2d7;
  background: transparent;
  font: 16px/1.35 var(--font-mono);
  white-space: pre-wrap;
  overflow: auto;
  outline: none;
}

body.lab-qemu #wasm-term { display: none; }
body.lab-wasm #screen canvas { display: none; }
body.lab-wasm .console { display: none; }

canvas {
  display: block;
  width: 100%;
  image-rendering: auto;
}

.powerline {
  display: flex;
  flex-wrap: nowrap;
  align-items: stretch;
  overflow: hidden;
  height: 1.85rem;
  margin: 0.55rem 0.65rem 0.7rem;
  border-radius: 8px;
  font: 600 12px/1.85rem var(--font-nerd);
  letter-spacing: 0;
  user-select: none;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.powerline .seg {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0 0.9rem 0 1.05rem;
  white-space: nowrap;
  z-index: 1;
}

.powerline .seg::after {
  content: "";
  position: absolute;
  top: 0;
  left: 100%;
  width: 0.7rem;
  height: 100%;
  background: inherit;
  clip-path: polygon(0 0, 100% 50%, 0 100%);
  z-index: 2;
}

.powerline .seg:first-child { padding-left: 0.75rem; }
.powerline .seg:last-child { flex: 1; }
.powerline .seg:last-child::after { content: none; }

.pl-os { background: #5ac8fa; color: #00344d; z-index: 5; }
.pl-user { background: #0a84ff; color: #fff; z-index: 4; }
.pl-sess { background: #30d158; color: #04320f; z-index: 3; }
.pl-state { background: #ffd60a; color: #3a2d00; z-index: 2; }
.pl-host { background: rgba(255, 255, 255, 0.12); color: var(--text); z-index: 1; }

:root[data-lab-state="ready"] .pl-state { background: #30d158; color: #04320f; }
:root[data-lab-state="booting"] .pl-state { background: #0a84ff; color: #fff; }
:root[data-lab-state="blocked"] .pl-state,
:root[data-lab-state="failed"] .pl-state { background: #ff453a; color: #fff; }

.console { padding: 0; }
.console-head h2 { margin: 0; font: inherit; color: inherit; text-transform: none; letter-spacing: 0; font-size: 0.78rem; }

#serial,
#server-chat,
#server-roster {
  margin: 0 0.65rem 0.7rem;
  min-height: 7rem;
  max-height: 14rem;
  overflow: auto;
  padding: 0.75rem 0.85rem;
  border-radius: 10px;
  background: #0e0e10;
  color: #d1f7c4;
  border: 1px solid rgba(255, 255, 255, 0.08);
  white-space: pre-wrap;
  font: 12.5px/1.5 var(--font-mono);
}

#server-chat { min-height: 5rem; max-height: 10rem; color: #7dff9a; }
#server-roster {
  min-height: 0;
  max-height: 6rem;
  margin-top: -0.35rem;
  color: var(--text-secondary);
}

.server-panel[hidden] { display: none; }

code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  padding: 0.05em 0.3em;
  border-radius: 5px;
  background: rgba(0, 0, 0, 0.28);
}

@media (max-width: 960px) {
  .titlebar, .toolbar, .meta, .workspace { grid-template-columns: 1fr; }
  .status-badge { min-width: 0; justify-self: stretch; }
  #controls { justify-content: flex-start; }
}

@media (prefers-reduced-transparency: reduce) {
  .os-window, .glass-card, .status-badge, #controls button, #session-tabs button,
  .accounts button, .guest-cmd button, .server-panel button {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: #2c2c2e;
  }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}

/* MitM + RS teaching-lab panel */
.netlab-panel label { display: block; margin: 0.4rem 0; }
.netlab-panel select { margin-left: 0.4rem; }
.netlab-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0;
}
.netlab-panel button {
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 0.5rem;
  padding: 0.3rem 0.6rem;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  cursor: pointer;
}
.netlab-panel button:hover:not(:disabled) { background: rgba(255, 255, 255, 0.12); }
.netlab-panel button:disabled { opacity: 0.5; cursor: not-allowed; }
.netlab-panel[hidden] { display: none; }
#netmode-status {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 0.5rem;
  font-size: 0.85em;
}
#netmode-status[data-mode="live"] { background: rgba(48, 209, 88, 0.18); }
#netmode-status[data-mode="lab"]  { background: rgba(255, 159, 10, 0.22); }
.netlab-panel h3 {
  margin: 0.9rem 0 0.15rem;
  font-size: 0.95em;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 0.6rem;
}
.netlab-panel h3:first-of-type { border-top: none; padding-top: 0; }
.netlab-sub {
  margin: 0 0 0.4rem;
  font-size: 0.85em;
  color: var(--text-secondary);
}
.netlab-panel input[type="text"] {
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 0.5rem;
  padding: 0.3rem 0.5rem;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  margin-left: 0.4rem;
  width: 10rem;
  max-width: 45vw;
}
.netlab-panel input[type="text"]:disabled { opacity: 0.5; }