:root {
  --bg: #0b0d13;
  --surface: #12151f;
  --surface-border: #1e2333;
  --surface-border-subtle: #171b28;
  --text-primary: #edf2f7;
  --text-secondary: #8490a7;
  --text-dim: #4e5870;
  --blue: #2563eb;
  --blue-hover: #3b82f6;
  --blue-active: #1d4ed8;
  --green: #10b981;
  --amber: #f59e0b;
  --red: #ef4444;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", "Segoe UI Mono", Menlo, Consolas, monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-sans);
  min-height: 100vh;
  padding: 24px 20px;
  display: flex;
  justify-content: center;
  -webkit-font-smoothing: antialiased;
}

.shell {
  width: 100%;
  max-width: 960px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* Header */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 10px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.2px;
}

.tag {
  font-size: 11px;
  font-family: var(--font-mono);
  background: #182035;
  color: #60a5fa;
  padding: 2px 7px;
  border-radius: 4px;
  border: 1px solid rgba(96, 165, 250, 0.2);
}

.status-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
}

.dot {
  color: var(--text-dim);
}

.ready {
  color: #60a5fa;
}

.running {
  color: var(--amber);
}

.done {
  color: var(--green);
}

.fail {
  color: var(--red);
}

/* Control strip */
.control-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  padding: 14px 18px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 10px;
}

.action-btn {
  background: var(--blue);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  padding: 10px 24px;
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all 0.15s ease;
  outline: none;
}

.action-btn:hover:not(:disabled) {
  background: var(--blue-hover);
  box-shadow: 0 0 16px rgba(37, 99, 235, 0.4);
}

.action-btn:active:not(:disabled) {
  background: var(--blue-active);
  transform: translateY(1px);
}

.action-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  background: #232a3d;
  border-color: transparent;
}

.action-btn:focus-visible {
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.4);
}

.payload-chain {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.chain-item {
  color: var(--text-dim);
  background: #0d1017;
  border: 1px solid var(--surface-border-subtle);
  padding: 5px 10px;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.chain-item.active {
  color: #93c5fd;
  border-color: #3b82f6;
  background: #17233d;
}

.chain-item.done {
  color: #6ee7b7;
  border-color: rgba(16, 185, 129, 0.35);
  background: rgba(16, 185, 129, 0.08);
}

.sep {
  color: #2b3348;
}

/* Terminal */
.terminal {
  background: #08090d;
  border: 1px solid var(--surface-border);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.terminal-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 14px;
  background: #0f121a;
  border-bottom: 1px solid var(--surface-border);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.term-tools {
  display: flex;
  gap: 6px;
}

.tool-btn {
  background: transparent;
  border: 1px solid var(--surface-border);
  color: var(--text-secondary);
  padding: 3px 8px;
  font-size: 11px;
  font-family: var(--font-mono);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.tool-btn:hover {
  background: #1a2030;
  color: #fff;
  border-color: #2e3852;
}

#console {
  padding: 14px 16px;
  height: 480px;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.65;
  color: #cbd5e1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

#console::-webkit-scrollbar {
  width: 6px;
}

#console::-webkit-scrollbar-track {
  background: #08090d;
}

#console::-webkit-scrollbar-thumb {
  background: #1e2436;
  border-radius: 3px;
}

.log-line {
  word-break: break-all;
}

.log-time {
  color: #3b4258;
  font-size: 11px;
  margin-right: 6px;
  user-select: none;
}

.log-marker {
  font-weight: 700;
  margin-right: 6px;
  user-select: none;
}

.log-normal .log-marker { color: var(--text-dim); }
.log-info .log-marker { color: #38bdf8; }
.log-info { color: #dbeafe; }
.log-success .log-marker { color: var(--green); }
.log-success { color: #a7f3d0; }
.log-error .log-marker { color: var(--red); }
.log-error { color: #fca5a5; }

@media (max-width: 640px) {
  body {
    padding: 12px;
  }
  .header, .control-strip {
    flex-direction: column;
    align-items: flex-start;
  }
  .action-btn {
    width: 100%;
  }
}