:root {
  --bg:        #04070d;
  --panel:     #060709;   /* the black terminal surface */
  --panel-2:   #0c0e12;   /* controls / inputs */
  --surface:   #0a0c10;
  --border:    #15181d;
  --border-hi: #242932;
  --text:      #cdd8e6;
  --dim:       #6b7689;
  --green:     #3fb950;
  --green-glow:#3fb95055;
  --cyan:      #46d1d9;
  --cyan-glow: rgba(70, 209, 217, .4);
  --amber:     #d6a531;
  --red:       #f85149;
  --magenta:   #b483e0;
  --font: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  /* blue-tinted gradient backdrop — only thing that's blue behind the black HUD */
  background:
    radial-gradient(1200px 720px at 50% -12%, #16294a 0%, #0b1830 32%, #06101f 60%, #04070d 100%) fixed,
    #04070d;
}
body {
  padding: clamp(10px, 2.4vw, 34px);
  background-image:
    repeating-linear-gradient(0deg, transparent 0 39px, #1c89ff05 39px 40px),
    repeating-linear-gradient(90deg, transparent 0 39px, #1c89ff05 39px 40px);
}

b { color: var(--text); font-weight: 700; }

/* ---------------- terminal window chrome ---------------- */
.term {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel);
  box-shadow:
    0 40px 90px -30px #000,
    0 0 0 1px #ffffff05,
    0 0 60px -20px #0e2a55;
  overflow: hidden;
}
.term-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 13px;
  background: #08090b;
  border-bottom: 1px solid var(--border);
}
.dot { width: 11px; height: 11px; border-radius: 50%; display: inline-block; flex: none; }
.dot.red { background: #ff5f56; }
.dot.amber { background: var(--amber); }
.dot.green { background: var(--green); }
.dot.pulse { animation: pulse 1.2s ease-in-out infinite; }
/* the traffic-light dots are real controls (macOS style) */
.traffic { display: inline-flex; align-items: center; gap: 8px; }
button.dot {
  position: relative;
  padding: 0; border: none; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  transition: filter .1s;
}
button.dot::before {
  font-size: 9px; font-weight: 700; line-height: 1;
  color: rgba(0, 0, 0, .55);
  opacity: 0; transition: opacity .12s;
}
/* glyphs reveal when hovering anywhere over the cluster, like macOS */
.traffic:hover button.dot::before { opacity: 1; }
button.dot:active { filter: brightness(.8); }
#winClose::before { content: "\00d7"; }  /* × */
#winMin::before   { content: "\2013"; }  /* – */
#winMax::before   { content: "+"; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .25; } }
.term-title {
  margin-left: 6px;
  color: var(--dim);
  font-size: 12.5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.status-pill {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  color: var(--dim);
  padding: 4px 11px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
}

/* ---------------- buttons / inputs ---------------- */
.btn {
  font-family: var(--font);
  font-size: 13px;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--border-hi);
  border-radius: 8px;
  padding: 9px 14px;
  cursor: pointer;
  transition: border-color .15s, background .15s, transform .05s, box-shadow .15s, color .15s;
}
.btn:hover { border-color: var(--cyan); background: #11151b; color: #fff; }
.btn:active { transform: translateY(1px); }
.btn.primary {
  color: #04140a;
  background: var(--green);
  border-color: var(--green);
  font-weight: 700;
  letter-spacing: .3px;
}
.btn.primary:hover { background: #4cd562; color: #04140a; box-shadow: 0 0 24px var(--green-glow); }
.btn.big { padding: 13px 22px; font-size: 15px; letter-spacing: .5px; }
.btn.ghost { background: transparent; border-color: var(--border); color: var(--dim); }
.btn.ghost:hover { color: var(--text); border-color: var(--border-hi); background: transparent; }
.btn.tiny { padding: 3px 10px; border-radius: 6px; font-weight: 700; }
.btn:disabled { opacity: .45; cursor: not-allowed; }

select, input[type="text"], input[type="number"] {
  font-family: var(--font);
  font-size: 13px;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--border-hi);
  border-radius: 8px;
  padding: 8px 10px;
  width: 100%;
}
select:focus, input:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 0 3px var(--cyan-glow); }
input.num { width: 76px; text-align: center; }
input.num.wide { width: 100%; text-align: left; }
input[type="range"] { flex: 1; accent-color: var(--cyan); height: 4px; }

/* ---------------- layout grid ---------------- */
.app .term-body.grid {
  display: grid;
  grid-template-columns: 286px 1fr 366px;
  gap: 0;
  min-height: 80vh;
}
.panel { padding: 18px 18px 20px; border-right: 1px solid var(--border); background: var(--panel); }
.panel:last-child { border-right: none; }
.panel-head {
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: .4px;
  text-transform: uppercase;
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--border);
}
.panel-head .dim { color: var(--dim); text-transform: none; letter-spacing: 0; }

.field { display: block; margin-bottom: 16px; }
.field .lbl { display: block; color: var(--dim); font-size: 12px; margin-bottom: 7px; }
.field .row { display: flex; align-items: center; gap: 11px; }
.algo-desc { margin-top: 8px; font-size: 11.5px; line-height: 1.5; color: var(--dim); }
.algo-desc b { color: var(--cyan); font-weight: 700; }
.small { font-size: 11px; }
.dim { color: var(--dim); }

/* ---------------- bucket stage ---------------- */
.stage { display: flex; flex-direction: column; }
.bucket-wrap {
  display: flex;
  gap: 18px;
  align-items: center;
  justify-content: center;
  flex: 1;
  min-height: 240px;
  padding: 10px 0 20px;
}
.bucket {
  position: relative;
  width: 132px;
  height: 232px;
  border: 2px solid var(--border-hi);
  border-top: none;
  border-radius: 0 0 16px 16px / 0 0 26px 26px;
  background:
    repeating-linear-gradient(180deg, transparent 0 22px, #ffffff04 22px 23px),
    #050608;
  overflow: hidden;
  box-shadow: inset 0 0 40px #000;
}
.bucket::before {
  content: "";
  position: absolute; top: 0; left: -2px; right: -2px;
  height: 2px; background: var(--border-hi);
  box-shadow: -12px 0 0 var(--border-hi), 12px 0 0 var(--border-hi);
}
.bucket-fill {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 100%;
  background: linear-gradient(180deg, var(--cyan), #1f8f96);
  box-shadow: 0 0 28px var(--cyan);
  opacity: .9;
}
.bucket-fill::after {
  content: "";
  position: absolute; top: -6px; left: 0; right: 0; height: 8px;
  background: #cffaff; opacity: .6; filter: blur(1px);
}
.bucket.deny { animation: shake .4s; }
.bucket.deny .bucket-fill { background: linear-gradient(180deg, var(--red), #8f231f); box-shadow: 0 0 28px var(--red); }
@keyframes shake { 0%,100%{transform:translateX(0)} 25%{transform:translateX(-6px)} 75%{transform:translateX(6px)} }
.bucket-reading {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  font-size: 32px; font-weight: 700;
  color: #f3fbff;
  text-shadow: 0 1px 8px #000c;
  mix-blend-mode: difference;
  pointer-events: none;
}
.bucket-reading .small { font-size: 12px; font-weight: 400; }

.pips { display: grid; grid-auto-rows: 14px; gap: 5px; align-content: end; height: 232px; }
.pip { width: 14px; height: 14px; border-radius: 4px; background: #14171d; border: 1px solid var(--border-hi); transition: background .12s, box-shadow .12s; }
.pip.on { background: var(--cyan); box-shadow: 0 0 9px var(--cyan); border-color: var(--cyan); }

.narration {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 9px;
  padding: 12px 14px;
  min-height: 46px;
  font-size: 13px;
  margin-bottom: 15px;
}
.narration .prompt { color: var(--green); margin-right: 6px; }
.narration.ok { border-color: #1e5b2c; box-shadow: inset 0 0 24px -14px var(--green); }
.narration.bad { border-color: #5b211e; box-shadow: inset 0 0 24px -14px var(--red); }

.controls { display: flex; flex-wrap: wrap; gap: 9px; align-items: center; margin-bottom: 14px; }
.controls .num { width: auto; }

.stats { display: flex; gap: 18px; font-size: 12.5px; color: var(--dim); }
.stats .ok b { color: var(--green); }
.stats .bad b { color: var(--red); }

/* ---------------- log ---------------- */
.logwrap { display: flex; flex-direction: column; }
.log {
  flex: 1;
  overflow-y: auto;
  font-size: 12.5px;
  line-height: 1.65;
  max-height: 70vh;
  padding-right: 4px;
}
.log:empty::before { content: "// no requests yet — hit SEND REQUEST (or press Enter)"; color: var(--dim); }
.log .line { white-space: pre-wrap; word-break: break-word; border-bottom: 1px solid #ffffff05; padding: 3px 0; }
.log .req { color: var(--dim); }
.log .req .mag { color: var(--magenta); }
.log .res.ok { color: var(--green); }
.log .res.bad { color: var(--red); }
.log .res.warn { color: var(--amber); }
.log::-webkit-scrollbar { width: 8px; }
.log::-webkit-scrollbar-thumb { background: var(--border-hi); border-radius: 8px; }

/* ---------------- guided tour (spotlight coachmarks) ---------------- */
.tour-block {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(3, 5, 9, .6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.tour-spot {
  position: fixed; z-index: 1001; pointer-events: none;
  border-radius: 10px;
  box-shadow:
    0 0 0 2px var(--cyan),
    0 0 0 5px rgba(70, 209, 217, .22),
    0 0 30px 6px rgba(70, 209, 217, .4);
  transition: top .22s ease, left .22s ease, width .22s ease, height .22s ease;
}
.tour-highlight { position: relative; z-index: 1002 !important; }

.tour-tip {
  position: fixed; z-index: 1003;
  width: min(300px, calc(100vw - 24px));
  background: linear-gradient(180deg, #0b0d11, #07090c);
  border: 1px solid var(--border-hi);
  border-radius: 11px;
  box-shadow: 0 20px 55px -14px #000, 0 0 40px -22px var(--cyan);
  padding: 14px 15px 12px;
  transition: top .2s ease, left .2s ease;
}
.tour-tip h3 { margin: 0 0 7px; color: var(--cyan); font-size: 13.5px; }
.tour-tip h3 .prompt { color: var(--green); margin-right: 6px; }
.tour-tip p { margin: 0 0 13px; font-size: 13px; line-height: 1.5; color: var(--text); }
.tour-tip .g { color: var(--green); }
.tour-tip .r { color: var(--red); }
.tour-foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.tour-dots { display: flex; gap: 5px; }
.tour-dots span { width: 7px; height: 7px; border-radius: 50%; background: var(--border-hi); }
.tour-dots span.on { background: var(--cyan); box-shadow: 0 0 7px var(--cyan); }
.tour-acts { display: flex; gap: 7px; }
.tour-acts .btn.tiny { padding: 5px 11px; font-size: 12px; }

/* ---------------- window controls: maximize / minimize / log toggle ---------------- */
.app.maximized {
  position: fixed; inset: 0; z-index: 40;
  border-radius: 0; border: none;
  box-shadow: none;
}
.app.maximized .term-body.grid { min-height: calc(100vh - 45px); }
.app.minimized { display: none; }

/* hide the log column and reclaim its space */
.term-body.grid.no-log { grid-template-columns: 286px 1fr; }
.term-body.grid.no-log .logwrap { display: none; }
@media (max-width: 1040px) {
  .term-body.grid.no-log { grid-template-columns: 1fr; }
}

/* launcher icon — hidden by default, shown only while minimized via .show */
.launcher {
  position: fixed; left: 50%; top: 50%; transform: translate(-50%, -50%);
  z-index: 60;
  display: none; align-items: center; gap: 14px;
  font-family: var(--font);
  background: linear-gradient(180deg, #0b0d11, #07090c);
  color: var(--text);
  border: 1px solid var(--border-hi);
  border-radius: 16px;
  padding: 18px 22px;
  cursor: pointer;
  box-shadow: 0 30px 70px -20px #000, 0 0 50px -18px var(--cyan);
  transition: transform .12s, box-shadow .15s, border-color .15s;
}
.launcher.show { display: flex; }
.launcher:hover { transform: translate(-50%, -50%) scale(1.04); border-color: var(--cyan); box-shadow: 0 30px 70px -16px #000, 0 0 64px -14px var(--cyan); }
.launcher-icon {
  display: grid; place-items: center;
  width: 52px; height: 52px; border-radius: 13px;
  background: radial-gradient(circle at 30% 25%, #123, #06080b);
  border: 1px solid var(--border-hi);
  color: var(--green); font-weight: 700; font-size: 22px;
  box-shadow: inset 0 0 22px -8px var(--green);
}
.launcher-text { display: flex; flex-direction: column; align-items: flex-start; font-size: 14px; font-weight: 700; }
.launcher-text small { color: var(--dim); font-weight: 400; font-size: 11px; margin-top: 3px; }

/* ---------------- responsive ---------------- */
@media (max-width: 1040px) {
  .app .term-body.grid { grid-template-columns: 1fr; }
  .panel { border-right: none; border-bottom: 1px solid var(--border); }
  .log { max-height: 320px; }
  .bucket-wrap { min-height: 220px; }
}

/* respect users who prefer fewer animations (calms pulse/shake/transitions) */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}