/* ═══════════════════════════════════════════════════════════════════
   Agent Demo — terminal-styled AI showcase card
   ═══════════════════════════════════════════════════════════════════ */

.agent-demo {
  margin-top: var(--space-12);
  max-width: 980px;
  margin-left: auto;
  margin-right: auto;
}

.agent-demo__shell {
  position: relative;
  background:
    linear-gradient(180deg, rgba(13, 18, 32, 0.95) 0%, rgba(8, 11, 20, 0.98) 100%),
    var(--color-bg-surface);
  border: 1px solid var(--color-bg-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow:
    0 24px 60px -20px rgba(0, 0, 0, 0.7),
    0 0 0 1px rgba(124, 58, 237, 0.08);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}
.agent-demo__shell::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.4) 0%, rgba(124, 58, 237, 0.4) 50%, transparent 100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
}

/* Top bar (terminal chrome) */
.agent-demo__topbar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-bg-border);
  background: rgba(8, 11, 20, 0.5);
}
.agent-demo__dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  flex-shrink: 0;
}
.agent-demo__dot--r { background: #FF5F57; }
.agent-demo__dot--y { background: #FEBC2E; }
.agent-demo__dot--g { background: #28C840; }
.agent-demo__title {
  flex: 1;
  text-align: center;
  font-family: 'Inter', system-ui, monospace;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}
.agent-demo__status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-success);
}
.agent-demo__status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.18);
  animation: agentStatusPulse 1.6s ease-in-out infinite;
}
@keyframes agentStatusPulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.18); }
  50%      { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0.05); }
}

/* Body */
.agent-demo__body {
  padding: var(--space-6) var(--space-6) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
@media (max-width: 640px) {
  .agent-demo__body { padding: var(--space-4); }
}

.agent-demo__system {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  padding: var(--space-3) var(--space-4);
  background: rgba(124, 58, 237, 0.06);
  border: 1px dashed rgba(124, 58, 237, 0.25);
  border-radius: var(--radius-md);
}
.agent-demo__system-tag {
  font-family: 'Inter', system-ui, monospace;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #A78BFA;
  padding: 3px 7px;
  border-radius: 4px;
  background: rgba(124, 58, 237, 0.15);
  flex-shrink: 0;
}
.agent-demo__system p {
  font-family: 'Inter', system-ui, monospace;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.55;
}

/* Prompt chips */
.agent-demo__prompts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-2);
}
.agent-demo__prompt {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--color-text-primary);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--color-bg-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: transform var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}
.agent-demo__prompt:hover {
  border-color: rgba(124, 58, 237, 0.4);
  background: rgba(124, 58, 237, 0.06);
  transform: translateY(-1px);
}
.agent-demo__prompt[aria-pressed="true"] {
  border-color: rgba(6, 182, 212, 0.5);
  background: rgba(6, 182, 212, 0.08);
  box-shadow: inset 0 0 0 1px rgba(6, 182, 212, 0.2);
}
.agent-demo__prompt:focus-visible {
  outline: 2px solid var(--color-text-accent);
  outline-offset: 2px;
}
.agent-demo__prompt-icon {
  font-size: 1rem;
  flex-shrink: 0;
}

/* Exchange (the typewriter output area) */
.agent-demo__exchange {
  min-height: 180px;
  padding: var(--space-4);
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--color-bg-border);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  font-family: 'Inter', system-ui, monospace;
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  max-height: 540px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--color-bg-border) transparent;
}
.agent-demo__exchange::-webkit-scrollbar { width: 6px; }
.agent-demo__exchange::-webkit-scrollbar-track { background: transparent; }
.agent-demo__exchange::-webkit-scrollbar-thumb {
  background: var(--color-bg-border);
  border-radius: 3px;
}

.agent-demo__placeholder {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-muted);
  font-style: italic;
  padding: var(--space-4) 0;
}
.agent-demo__placeholder-cursor {
  width: 8px;
  height: 14px;
  background: var(--color-text-accent);
  display: inline-block;
  animation: cursorBlink 1.1s steps(2) infinite;
}
@keyframes cursorBlink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

/* Lines (user + agent) */
.agent-demo__line {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  padding-bottom: var(--space-2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}
.agent-demo__line:last-child { border-bottom: none; }
.agent-demo__line-tag {
  font-family: 'Inter', system-ui, monospace;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 3px 7px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-text-muted);
  flex-shrink: 0;
}
.agent-demo__line-tag--agent {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.18), rgba(124, 58, 237, 0.18));
  color: var(--color-text-accent);
}
.agent-demo__line p,
.agent-demo__line-content {
  flex: 1;
  margin: 0;
}
.agent-demo__line--user p {
  color: var(--color-text-primary);
  font-weight: 500;
}
.agent-demo__line-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.agent-demo__thinking {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 6px;
  background: rgba(124, 58, 237, 0.08);
  color: var(--color-text-muted);
  font-size: 0.75rem;
  transition: opacity 0.4s ease;
}
.agent-demo__thinking--done {
  opacity: 0.35;
}
.agent-demo__thinking-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-text-accent);
  animation: thinkingBob 1s ease-in-out infinite;
}
.agent-demo__thinking-dot:nth-child(2) { animation-delay: 0.15s; }
.agent-demo__thinking-dot:nth-child(3) { animation-delay: 0.3s; }
@keyframes thinkingBob {
  0%, 100% { transform: translateY(0); opacity: 0.5; }
  50%      { transform: translateY(-3px); opacity: 1; }
}
.agent-demo__thinking-text { margin-left: var(--space-1); }

.agent-demo__h {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin: var(--space-1) 0 0;
  letter-spacing: 0;
}

.agent-demo__pre {
  font-family: 'JetBrains Mono', 'Fira Code', 'SF Mono', monospace;
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-sm);
  padding: var(--space-3);
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  max-width: 100%;
  overflow-x: auto;
}

.agent-demo__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(124, 58, 237, 0.12));
  border: 1px solid rgba(124, 58, 237, 0.3);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-weight: 600;
  margin: 0;
}
.agent-demo__cta-mark {
  font-weight: 700;
  color: var(--color-text-accent);
}

/* Footer of agent shell */
.agent-demo__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--color-bg-border);
  background: rgba(8, 11, 20, 0.5);
  font-family: 'Inter', system-ui, monospace;
  font-size: 0.72rem;
  color: var(--color-text-muted);
  flex-wrap: wrap;
}
.agent-demo__footer-meta strong {
  color: var(--color-text-secondary);
  font-weight: 600;
}
.agent-demo__footer-cta {
  font-weight: 600;
  color: var(--color-text-accent);
  text-decoration: none;
  transition: opacity var(--transition-fast);
}
.agent-demo__footer-cta:hover {
  opacity: 0.85;
}