:root {
  --bg: #091118;
  --bg-alt: #0d1b26;
  --panel: rgba(8, 19, 30, 0.86);
  --panel-strong: rgba(10, 26, 40, 0.96);
  --line: rgba(164, 190, 212, 0.18);
  --line-strong: rgba(164, 190, 212, 0.28);
  --text: #eef5fb;
  --muted: #94a8ba;
  --accent: #7ae9c8;
  --accent-strong: #b9ffe9;
  --accent-ink: #032219;
  --danger: #ff8089;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.28);
  --mono: "IBM Plex Mono", "SFMono-Regular", ui-monospace, monospace;
  --sans: "Space Grotesk", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(27, 68, 88, 0.95) 0, rgba(8, 17, 24, 0) 34%),
    radial-gradient(circle at right top, rgba(9, 48, 38, 0.7) 0, rgba(8, 17, 24, 0) 26%),
    linear-gradient(180deg, var(--bg-alt), var(--bg));
  color: var(--text);
  font-family: var(--sans);
}
button, input, textarea, select { font: inherit; }
button {
  border: 1px solid transparent;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
  padding: 0.85rem 1rem;
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 120ms ease, background 120ms ease;
}
button:hover { transform: translateY(-1px); box-shadow: 0 10px 24px rgba(122, 233, 200, 0.18); }
button.ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
  box-shadow: none;
}
button.danger {
  color: var(--danger);
  border-color: rgba(255, 128, 137, 0.35);
}
input, textarea, select {
  width: 100%;
  background: rgba(255, 255, 255, 0.02);
  color: var(--text);
  border: 1px solid var(--line);
  padding: 0.95rem 1rem;
}
textarea { resize: vertical; }
label { display: grid; gap: 0.45rem; color: var(--muted); font-size: 0.95rem; }
a { color: inherit; }

.shell { max-width: 1560px; margin: 0 auto; padding: 2rem; }
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(320px, 0.95fr);
  gap: 1.35rem;
  align-items: end;
  margin-bottom: 1.2rem;
}
.hero-copy {
  padding: 1.4rem 1.55rem 1.55rem;
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.eyebrow {
  margin: 0 0 0.45rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  font-size: 0.72rem;
}
.hero h1 {
  margin: 0;
  font-size: clamp(2.35rem, 4vw, 4.7rem);
  line-height: 0.94;
  max-width: 12ch;
}
.lede {
  max-width: 58ch;
  color: var(--muted);
  font-size: 1.05rem;
  margin: 1rem 0 0;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.15rem;
}
.hero-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1rem;
  border: 1px solid transparent;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
  text-decoration: none;
}
.ghost-link {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  justify-content: flex-end;
  align-content: start;
}
.pill {
  border: 1px solid var(--line);
  padding: 0.6rem 0.85rem;
  color: var(--muted);
  font-size: 0.88rem;
  background: rgba(255, 255, 255, 0.03);
}

.grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 1rem; }
.panel {
  background: linear-gradient(180deg, rgba(8, 19, 30, 0.92), rgba(8, 19, 30, 0.82));
  border: 1px solid var(--line);
  min-height: 240px;
  padding: 1rem;
  box-shadow: var(--shadow);
}
.panel h2 {
  margin: 0;
  font-size: 0.94rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 0.8rem; margin-bottom: 1rem; }
.service-panel { grid-column: span 3; }
.auth-panel { grid-column: span 3; }
.workspace-panel { grid-column: span 3; }
.inspector-panel { grid-column: span 3; }
.run-panel { grid-column: span 12; }
.threads-panel { grid-column: span 4; }
.files-panel { grid-column: span 8; }
.console-panel { grid-column: span 12; }
.wide { grid-column: span 12; }
.stack { display: grid; gap: 0.85rem; }
.stack.tight { gap: 0.45rem; }
.actions, .run-actions, .panel-tools, .service-links { display: flex; flex-wrap: wrap; gap: 0.7rem; align-items: center; }
.login-card {
  margin-top: 1rem;
  padding: 1rem;
  background: rgba(122, 233, 200, 0.08);
  border: 1px solid rgba(122, 233, 200, 0.24);
}
.login-card code, .mono { font-family: var(--mono); }
.small { font-size: 0.84rem; color: var(--muted); }
.hidden { display: none; }
.list, .thread-strip, .file-list { display: grid; gap: 0.7rem; }
.list-item, .thread-item, .file-item {
  padding: 0.85rem 0 0;
  border-top: 1px solid var(--line);
}
.list-item:first-child, .thread-item:first-child, .file-item:first-child {
  padding-top: 0;
  border-top: none;
}
.workspace-form, .run-form { display: grid; gap: 1rem; }
.run-row { display: grid; grid-template-columns: 1fr 1.25fr; gap: 1rem; }
.console, .file-preview {
  min-height: 420px;
  max-height: 62vh;
  overflow: auto;
  margin: 0;
  padding: 1rem;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255,255,255,0.07);
  font-family: var(--mono);
  font-size: 0.92rem;
  line-height: 1.5;
  white-space: pre-wrap;
}
.file-preview { min-height: 360px; max-height: 48vh; }
.files-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1.28fr);
  gap: 1rem;
}
.file-list {
  max-height: 48vh;
  overflow: auto;
  padding-right: 0.4rem;
}
.file-button {
  width: 100%;
  text-align: left;
  background: transparent;
  color: var(--text);
  border: 1px solid transparent;
  padding: 0.75rem 0.8rem;
  box-shadow: none;
}
.file-button:hover,
.file-button.active {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.04);
  transform: none;
}
.follow-toggle { display: inline-flex; align-items: center; gap: 0.5rem; color: var(--muted); }
.follow-toggle input { width: auto; }
.state-ok { color: var(--accent-strong); }
.state-error { color: var(--danger); }
.link { color: var(--accent-strong); }
.key-value {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 0.6rem;
  align-items: start;
}
.key-value dt { color: var(--muted); }
.key-value dd { margin: 0; }

@media (max-width: 1260px) {
  .hero { grid-template-columns: 1fr; }
  .hero-meta { justify-content: flex-start; }
  .service-panel, .auth-panel, .workspace-panel, .inspector-panel, .threads-panel, .files-panel, .wide, .console-panel { grid-column: span 12; }
}

@media (max-width: 780px) {
  .shell { padding: 1rem; }
  .run-row, .files-grid { grid-template-columns: 1fr; }
  .hero h1 { max-width: none; }
  .key-value { grid-template-columns: 1fr; gap: 0.18rem; }
}