:root {
  --workspace-bg: #07111f;
  --workspace-panel: rgba(12, 24, 42, 0.94);
  --workspace-panel-soft: rgba(17, 31, 52, 0.86);
  --workspace-border: rgba(148, 163, 184, 0.16);
  --workspace-text: #eef4ff;
  --workspace-muted: #9fb0c7;
  --workspace-accent: #73a7ff;
  --workspace-good: #54d39a;
  --workspace-warn: #f3c96a;
  --workspace-danger: #ff8d8d;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 0%, rgba(51, 99, 190, 0.22), transparent 32rem),
    radial-gradient(circle at 90% 10%, rgba(64, 180, 146, 0.12), transparent 28rem),
    var(--workspace-bg);
  color: var(--workspace-text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button, textarea, input { font: inherit; }
button { cursor: pointer; }

.workspace-shell { min-height: 100vh; }

.topbar {
  min-height: 64px;
  padding: 0.85rem 1.1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--workspace-border);
  background: rgba(7, 17, 31, 0.86);
  backdrop-filter: blur(18px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand { color: #fff; text-decoration: none; font-weight: 900; letter-spacing: 0.08em; }
.brand-subtitle { margin-left: 0.5rem; color: var(--workspace-muted); }
.status-cluster { display: flex; align-items: center; gap: 0.55rem; flex-wrap: wrap; justify-content: flex-end; }
.profile-link { color: var(--workspace-text); text-decoration: none; font-weight: 700; }

.pill {
  border: 1px solid var(--workspace-border);
  background: rgba(255,255,255,0.05);
  color: var(--workspace-muted);
  border-radius: 999px;
  padding: 0.35rem 0.65rem;
  font-size: 0.78rem;
  font-weight: 800;
}
.pill-good { color: var(--workspace-good); border-color: rgba(84, 211, 154, 0.28); }
.pill-warn { color: var(--workspace-warn); border-color: rgba(243, 201, 106, 0.28); }
.pill-danger { color: var(--workspace-danger); border-color: rgba(255, 141, 141, 0.28); }

.workspace-grid {
  display: grid;
  grid-template-columns: minmax(220px, 0.72fr) minmax(0, 1.8fr) minmax(250px, 0.9fr);
  gap: 1rem;
  padding: 1rem;
  min-height: calc(100vh - 64px);
}

.panel {
  min-height: 0;
  background: var(--workspace-panel);
  border: 1px solid var(--workspace-border);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 24px 70px rgba(0,0,0,0.2);
}

.projects-panel, .context-panel { padding: 1rem; }
.conversation-panel { display: flex; flex-direction: column; }

.panel-heading, .conversation-header, .section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
}

h1, h2, h3, p { margin-top: 0; }
h1 { font-size: 1.35rem; margin-bottom: 0; }
h2 { font-size: 1.15rem; margin-bottom: 0; }
.eyebrow { margin-bottom: 0.25rem; color: var(--workspace-accent); text-transform: uppercase; letter-spacing: 0.12em; font-weight: 900; font-size: 0.68rem; }
.helper { color: var(--workspace-muted); font-size: 0.78rem; line-height: 1.45; }

button, .primary-link {
  border: 1px solid rgba(115, 167, 255, 0.34);
  background: linear-gradient(135deg, #356fd4, #2e5db4);
  color: white;
  padding: 0.7rem 0.9rem;
  border-radius: 12px;
  font-weight: 800;
  text-decoration: none;
}
.button-secondary, .icon-button {
  background: rgba(255,255,255,0.055);
  border-color: var(--workspace-border);
  color: var(--workspace-text);
}
.icon-button { width: 2.4rem; height: 2.4rem; padding: 0; font-size: 1.35rem; }

.project-list, .memory-list, .run-list { display: grid; gap: 0.55rem; margin-top: 1rem; }
.project-button {
  text-align: left;
  width: 100%;
  background: rgba(255,255,255,0.035);
  border-color: var(--workspace-border);
  color: var(--workspace-text);
}
.project-button strong, .project-button span { display: block; }
.project-button span { margin-top: 0.2rem; color: var(--workspace-muted); font-size: 0.75rem; }
.project-button[data-active="true"] { border-color: rgba(115, 167, 255, 0.65); background: rgba(67, 112, 194, 0.18); }

.conversation-header { padding: 1rem 1rem 0.7rem; }
.conversation-actions, .composer-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; justify-content: flex-end; }
.thread-tabs { display: flex; gap: 0.45rem; overflow-x: auto; padding: 0.25rem 1rem 0.75rem; border-bottom: 1px solid var(--workspace-border); }
.thread-tab { flex: 0 0 auto; background: rgba(255,255,255,0.04); border-color: var(--workspace-border); color: var(--workspace-muted); padding: 0.5rem 0.72rem; }
.thread-tab[data-active="true"] { color: #fff; border-color: rgba(115, 167, 255, 0.55); }

.message-list { flex: 1; min-height: 260px; overflow-y: auto; padding: 1rem; display: grid; align-content: start; gap: 0.7rem; }
.message {
  max-width: 88%;
  padding: 0.78rem 0.9rem;
  border-radius: 15px;
  background: rgba(255,255,255,0.055);
  border: 1px solid var(--workspace-border);
  white-space: pre-wrap;
  line-height: 1.5;
}
.message-user { justify-self: end; background: rgba(64, 111, 192, 0.2); border-color: rgba(115, 167, 255, 0.28); }
.message-meta { margin-top: 0.45rem; color: var(--workspace-muted); font-size: 0.68rem; }

.composer { border-top: 1px solid var(--workspace-border); padding: 0.85rem; background: rgba(7, 17, 31, 0.35); }
textarea {
  width: 100%;
  resize: vertical;
  border: 1px solid var(--workspace-border);
  background: rgba(255,255,255,0.05);
  color: var(--workspace-text);
  border-radius: 12px;
  padding: 0.8rem;
  outline: none;
}
textarea:focus { border-color: rgba(115, 167, 255, 0.65); box-shadow: 0 0 0 3px rgba(115, 167, 255, 0.09); }
.composer-footer { margin-top: 0.55rem; display: flex; justify-content: space-between; align-items: center; gap: 0.75rem; }

.context-panel { overflow-y: auto; }
.context-section + .context-section { border-top: 1px solid var(--workspace-border); margin-top: 1.2rem; padding-top: 1.2rem; }
.stack-form { display: grid; gap: 0.55rem; margin-top: 0.8rem; }
.memory-card, .run-card {
  padding: 0.72rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--workspace-border);
  border-radius: 12px;
}
.memory-card p, .run-card p { margin-bottom: 0; white-space: pre-wrap; line-height: 1.45; }
.run-card .run-status { margin-bottom: 0.35rem; font-size: 0.7rem; color: var(--workspace-warn); font-weight: 900; text-transform: uppercase; letter-spacing: 0.08em; }

.empty-state {
  padding: 1rem;
  border: 1px dashed var(--workspace-border);
  border-radius: 12px;
  color: var(--workspace-muted);
  display: grid;
  gap: 0.25rem;
  text-align: center;
}
.empty-state strong { color: var(--workspace-text); }

.auth-gate { min-height: calc(100vh - 64px); display: grid; place-items: center; padding: 1rem; }
.auth-card { max-width: 560px; padding: 1.4rem; border-radius: 18px; background: var(--workspace-panel); border: 1px solid var(--workspace-border); }
.auth-card h1 { font-size: clamp(1.7rem, 5vw, 2.7rem); margin-bottom: 0.65rem; }
.auth-card p:not(.eyebrow) { color: var(--workspace-muted); line-height: 1.55; }
.primary-link { display: inline-block; margin-top: 0.5rem; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

@media (max-width: 980px) {
  .workspace-grid { grid-template-columns: 220px minmax(0, 1fr); }
  .context-panel { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
  .context-section + .context-section { border-top: 0; border-left: 1px solid var(--workspace-border); margin-top: 0; padding-top: 0; padding-left: 1rem; }
}

@media (max-width: 720px) {
  .topbar { align-items: flex-start; }
  .workspace-grid { display: block; padding: 0.6rem; }
  .panel { border-radius: 14px; margin-bottom: 0.6rem; }
  .projects-panel { max-height: 36vh; overflow-y: auto; }
  .context-panel { display: block; }
  .context-section + .context-section { border-left: 0; border-top: 1px solid var(--workspace-border); margin-top: 1rem; padding-left: 0; padding-top: 1rem; }
  .conversation-header { align-items: flex-start; }
  .conversation-actions { justify-content: flex-start; }
  .composer-footer { align-items: flex-start; flex-direction: column; }
  .composer-actions { width: 100%; }
  .composer-actions button { flex: 1; }
  .message { max-width: 96%; }
}