:root {
  color-scheme: dark;
  --bg: #05040a;
  --panel: rgba(15, 13, 25, .88);
  --panel-2: rgba(21, 18, 35, .88);
  --line: rgba(164, 143, 255, .18);
  --text: #f5f3ff;
  --muted: #9992ad;
  --cyan: #27e5ff;
  --magenta: #ff38d1;
  --violet: #8e62ff;
  --success: #58f0b4;
  --danger: #ff617c;
  --radius: 20px;
}

* { box-sizing: border-box; }

html { background: var(--bg); }

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 0%, rgba(75, 35, 145, .17), transparent 32rem),
    radial-gradient(circle at 100% 25%, rgba(0, 190, 230, .09), transparent 36rem),
    #05040a;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .22;
  background-image: linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: linear-gradient(to bottom, black, transparent 80%);
}

.ambient { position: fixed; width: 28rem; height: 28rem; border-radius: 50%; filter: blur(110px); pointer-events: none; opacity: .12; }
.ambient-a { background: var(--magenta); left: -18rem; top: 30%; }
.ambient-b { background: var(--cyan); right: -20rem; bottom: 8%; }

button, input, select { font: inherit; }
button { color: inherit; }

.topbar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 14px;
  max-width: 1720px;
  margin: 0 auto;
  padding: 24px 28px 18px;
}

.topbar h1, .panel-heading h2 { margin: 0; letter-spacing: -.03em; }
.topbar h1 { font-size: clamp(1.25rem, 2vw, 1.7rem); font-weight: 600; }
.eyebrow { margin: 0 0 3px; color: var(--muted); text-transform: uppercase; letter-spacing: .18em; font-size: .64rem; font-weight: 700; }

.brand-mark { width: 42px; height: 42px; position: relative; display: grid; place-items: center; border-radius: 50%; border: 1px solid rgba(91, 224, 255, .3); box-shadow: inset 0 0 20px rgba(121, 73, 255, .18), 0 0 20px rgba(56, 203, 255, .07); }
.brand-mark::after { content: ""; width: 6px; height: 6px; background: white; border-radius: 50%; box-shadow: 0 0 12px var(--cyan); }
.brand-mark span { position: absolute; height: 1px; background: linear-gradient(90deg, transparent, var(--cyan), var(--magenta), transparent); transform-origin: center; }
.brand-mark span:nth-child(1) { width: 29px; transform: rotate(0deg); }
.brand-mark span:nth-child(2) { width: 32px; transform: rotate(60deg); }
.brand-mark span:nth-child(3) { width: 32px; transform: rotate(120deg); }

.health { margin-left: auto; display: flex; align-items: center; gap: 9px; color: var(--muted); font-size: .78rem; padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px; background: rgba(12,10,21,.62); }
.health i { width: 7px; height: 7px; border-radius: 50%; background: #f0b958; box-shadow: 0 0 10px currentColor; }
.health.ok i { background: var(--success); }
.health.error i { background: var(--danger); }

.workspace {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(340px, .72fr);
  gap: 18px;
  max-width: 1720px;
  margin: 0 auto;
  padding: 0 28px 24px;
}

.viewer-card, .controls-card, .jobs-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(18,15,29,.93), rgba(8,7,15,.94));
  box-shadow: 0 24px 80px rgba(0,0,0,.28), inset 0 1px rgba(255,255,255,.025);
  overflow: hidden;
}

.viewer-card { align-self: start; }
.viewer-toolbar, .panel-heading { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 18px 20px; }
.viewer-toolbar .label { display: block; color: var(--muted); font-size: .68rem; text-transform: uppercase; letter-spacing: .12em; margin-bottom: 4px; }
.viewer-toolbar strong { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .84rem; font-weight: 500; color: #d6d0e6; }
.toolbar-actions { display: flex; gap: 8px; }

.button, .icon-button {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.035);
  border-radius: 10px;
  cursor: pointer;
  transition: .2s ease;
}
.button { padding: 9px 13px; font-size: .78rem; }
.button:hover, .icon-button:hover { border-color: rgba(108, 225, 255, .46); transform: translateY(-1px); }
.button:disabled { opacity: .55; cursor: wait; transform: none; }
.button.secondary { background: rgba(117, 76, 255, .13); color: #ddd3ff; }
.button.primary { background: linear-gradient(115deg, #7048ef, #a029d9 55%, #dc268e); border-color: rgba(255,255,255,.16); box-shadow: 0 9px 28px rgba(123, 48, 226, .28); }
.button.ghost { color: #aca5bd; }

.canvas-shell { position: relative; min-height: 420px; aspect-ratio: 16/10; overflow: hidden; background: black; cursor: crosshair; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
#fractalCanvas { display: block; width: 100%; height: 100%; }
.canvas-shell::after { content: ""; position: absolute; inset: 0; pointer-events: none; box-shadow: inset 0 0 80px rgba(0,0,0,.34); }
.crosshair { position: absolute; pointer-events: none; width: 18px; height: 18px; left: 50%; top: 50%; transform: translate(-50%,-50%); border: 1px solid rgba(255,255,255,.35); border-radius: 50%; box-shadow: 0 0 12px rgba(39,229,255,.35); }
.crosshair::before, .crosshair::after { content: ""; position: absolute; background: rgba(255,255,255,.38); }
.crosshair::before { width: 26px; height: 1px; left: -5px; top: 8px; }
.crosshair::after { width: 1px; height: 26px; left: 8px; top: -5px; }
.canvas-help { position: absolute; left: 14px; bottom: 12px; z-index: 2; font-size: .68rem; color: rgba(255,255,255,.64); background: rgba(4,3,9,.62); padding: 7px 9px; border-radius: 7px; backdrop-filter: blur(8px); }
.depth-target { position: absolute; z-index: 3; top: 12px; right: 12px; border: 1px solid rgba(88,240,180,.25); background: rgba(3,20,17,.72); border-radius: 999px; color: #b6fbe0; padding: 7px 10px; font-size: .68rem; backdrop-filter: blur(8px); }
.depth-target span { display: inline-block; width: 6px; height: 6px; margin-right: 5px; border-radius: 50%; background: var(--success); box-shadow: 0 0 9px var(--success); }

.viewer-stats { display: grid; grid-template-columns: repeat(4, 1fr); }
.viewer-stats div { padding: 14px 18px; border-right: 1px solid var(--line); }
.viewer-stats div:last-child { border-right: 0; }
.viewer-stats span, .viewer-stats strong { display: block; }
.viewer-stats span { font-size: .64rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }
.viewer-stats strong { margin-top: 4px; font-size: .86rem; font-weight: 600; color: #dad5e7; }

.controls-card { grid-row: span 2; }
.panel-heading { border-bottom: 1px solid var(--line); }
.panel-heading h2 { font-size: 1.06rem; }
.icon-button { width: 35px; height: 35px; color: var(--cyan); font-size: 1.15rem; }

form { padding: 18px 20px 22px; }
label { display: block; color: var(--muted); font-size: .68rem; font-weight: 600; letter-spacing: .02em; }
input[type="number"], select {
  width: 100%;
  height: 38px;
  margin-top: 7px;
  padding: 0 10px;
  color: #e9e5f2;
  background: rgba(255,255,255,.035);
  border: 1px solid var(--line);
  border-radius: 8px;
  outline: none;
}
input[type="number"]:focus, select:focus { border-color: rgba(39,229,255,.48); box-shadow: 0 0 0 3px rgba(39,229,255,.06); }
.control-grid { display: grid; gap: 10px; }
.control-grid.two { grid-template-columns: 1fr 1fr; }
.control-grid.three { grid-template-columns: repeat(3, 1fr); }
.section-title { display: flex; align-items: center; gap: 8px; margin: 20px 0 12px; color: #cac4d8; text-transform: uppercase; letter-spacing: .12em; font-size: .65rem; font-weight: 700; }
.section-title::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.section-title span { color: var(--violet); }

.range-label { margin-top: 13px; }
.range-label output { float: right; color: #ded8ec; font-weight: 600; }
input[type="range"] { appearance: none; width: 100%; height: 3px; margin: 13px 0 2px; background: linear-gradient(90deg, var(--violet), var(--magenta)); border-radius: 4px; outline: none; }
input[type="range"]::-webkit-slider-thumb { appearance: none; width: 14px; height: 14px; border-radius: 50%; background: white; border: 3px solid var(--violet); box-shadow: 0 0 12px rgba(142,98,255,.8); }
input[type="range"]::-moz-range-thumb { width: 10px; height: 10px; border-radius: 50%; background: white; border: 3px solid var(--violet); box-shadow: 0 0 12px rgba(142,98,255,.8); }

.depth-button { width: 100%; margin-top: 11px; display: flex; align-items: center; justify-content: center; gap: 10px; text-align: left; border-color: rgba(39,229,255,.22); background: linear-gradient(100deg, rgba(23,185,228,.1), rgba(139,68,244,.1)); }
.depth-button .spark { color: var(--cyan); font-size: 1.1rem; text-shadow: 0 0 12px var(--cyan); }
.depth-button strong, .depth-button small, .render-button strong, .render-button small { display: block; }
.depth-button small, .render-button small { margin-top: 2px; opacity: .65; font-size: .64rem; }

.switch-row { position: relative; display: flex; align-items: center; min-height: 48px; margin-top: 10px; padding: 9px 50px 9px 11px; border: 1px solid var(--line); border-radius: 9px; background: rgba(255,255,255,.02); cursor: pointer; }
.switch-row strong, .switch-row small { display: block; }
.switch-row strong { color: #dcd7e7; font-size: .72rem; }
.switch-row small { margin-top: 3px; color: var(--muted); font-weight: 400; }
.switch-row input { position: absolute; opacity: 0; }
.switch-row i { position: absolute; right: 11px; top: 50%; transform: translateY(-50%); width: 31px; height: 17px; border-radius: 999px; background: #322d3e; transition: .2s; }
.switch-row i::after { content: ""; position: absolute; top: 3px; left: 3px; width: 11px; height: 11px; border-radius: 50%; background: #9d96ab; transition: .2s; }
.switch-row input:checked + i { background: linear-gradient(90deg, #6445dc, #b934c4); box-shadow: 0 0 14px rgba(142,98,255,.25); }
.switch-row input:checked + i::after { left: 17px; background: white; }
.switch-row.compact { min-height: 44px; }

.render-button { width: 100%; margin-top: 15px; min-height: 52px; display: flex; justify-content: center; align-items: center; gap: 10px; text-align: left; }
.form-message { min-height: 1.2em; margin: 9px 2px 0; color: var(--muted); font-size: .7rem; text-align: center; }
.form-message.error { color: var(--danger); }
.form-message.success { color: var(--success); }

.jobs-card { min-height: 210px; }
.jobs-heading { padding-bottom: 14px; }
.jobs-list { padding: 6px 18px 18px; }
.empty-state { padding: 34px 10px; color: var(--muted); font-size: .78rem; text-align: center; }
.job { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 10px 18px; padding: 13px 4px; border-bottom: 1px solid var(--line); }
.job:last-child { border-bottom: 0; }
.job-title { display: flex; align-items: center; gap: 8px; min-width: 0; }
.job-title strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: .8rem; }
.status-dot { width: 7px; height: 7px; flex: none; border-radius: 50%; background: #7d758d; }
.job.running .status-dot { background: var(--cyan); box-shadow: 0 0 8px var(--cyan); animation: pulse 1.2s infinite; }
.job.completed .status-dot { background: var(--success); }
.job.failed .status-dot { background: var(--danger); }
.job-meta { margin: 5px 0 0 15px; color: var(--muted); font-size: .66rem; }
.job-action { align-self: center; }
.job-action a { color: var(--cyan); font-size: .7rem; text-decoration: none; border: 1px solid rgba(39,229,255,.2); border-radius: 7px; padding: 6px 9px; }
.progress-track { grid-column: 1/-1; height: 3px; margin-left: 15px; overflow: hidden; border-radius: 999px; background: rgba(255,255,255,.06); }
.progress-track span { display: block; height: 100%; background: linear-gradient(90deg, var(--cyan), var(--violet), var(--magenta)); transition: width .4s; }
.job-error { grid-column: 1/-1; margin: 0 0 0 15px; color: var(--danger); font-size: .66rem; }

footer { display: flex; justify-content: space-between; max-width: 1720px; margin: 0 auto; padding: 0 28px 28px; color: #696276; text-transform: uppercase; letter-spacing: .12em; font-size: .56rem; }

@keyframes pulse { 50% { opacity: .35; } }

@media (max-width: 1050px) {
  .workspace { grid-template-columns: 1fr; }
  .controls-card { grid-row: auto; }
  .canvas-shell { min-height: 360px; }
}

@media (max-width: 650px) {
  .topbar, .workspace { padding-left: 12px; padding-right: 12px; }
  .toolbar-actions { flex-direction: column; }
  .viewer-toolbar { align-items: flex-start; }
  .canvas-shell { min-height: 270px; aspect-ratio: 4/3; }
  .canvas-help { display: none; }
  .viewer-stats { grid-template-columns: 1fr 1fr; }
  .viewer-stats div:nth-child(2) { border-right: 0; }
  .viewer-stats div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .control-grid.three { grid-template-columns: 1fr; }
  footer { flex-direction: column; gap: 7px; padding-left: 12px; padding-right: 12px; }
}