/* ============================================================
   VenHub Developer Portal — Live Demo
   ============================================================ */

.demo-hero {
  padding: 64px 24px 40px;
}

.demo-hero .hero-subtitle { margin-bottom: 0; }

/* ============================================================
   App type switcher
   ============================================================ */

.demo-mode-switch-wrap {
  border-bottom: 1px solid var(--color-border);
  padding: 8px 24px 28px;
}

.demo-mode-switch {
  max-width: 640px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.demo-mode-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 14px 16px;
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-family: var(--font-sans);
  font-size: 14.5px;
  font-weight: 700;
  color: var(--color-text);
  cursor: pointer;
  transition: all 0.15s;
}

.demo-mode-btn:hover { border-color: var(--color-primary-light); }

.demo-mode-btn.is-active {
  border-color: var(--color-primary);
  background: rgba(79, 70, 229, 0.06);
  color: var(--color-primary);
}

.demo-mode-sub {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-muted);
}

.demo-mode-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.3px;
  text-transform: uppercase;
  color: #B45309;
  background: rgba(245, 158, 11, 0.14);
  padding: 2px 7px;
  border-radius: 999px;
}

/* ============================================================
   Third Party App intro
   ============================================================ */

.demo-tp-intro {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 24px 8px;
  text-align: center;
}

.demo-tp-intro-title {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.4px;
  color: var(--color-text);
  margin-bottom: 10px;
}

.demo-tp-intro-desc {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ============================================================
   Step tracker
   ============================================================ */

.demo-tracker-wrap {
  position: sticky;
  top: var(--nav-height);
  z-index: 20;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.demo-tracker {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  padding: 18px 24px;
  gap: 0;
}

.demo-tracker-step {
  display: flex;
  align-items: center;
  gap: 10px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-sans);
  padding: 6px 4px;
  border-radius: var(--radius-md);
  transition: background 0.15s;
}

.demo-tracker-step:hover { background: var(--color-bg-subtle); }

.demo-tracker-num {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  transition: all 0.2s;
}

.demo-tracker-text { text-align: left; }

.demo-tracker-label {
  display: block;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--color-text-muted);
  transition: color 0.2s;
}

.demo-tracker-sub {
  display: block;
  font-size: 11.5px;
  color: var(--color-text-muted);
}

.demo-tracker-step.is-active .demo-tracker-num {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: white;
}

.demo-tracker-step.is-active .demo-tracker-label { color: var(--color-text); }

.demo-tracker-step.is-complete .demo-tracker-num {
  border-color: var(--color-success);
  background: var(--color-success);
  color: white;
}

.demo-tracker-step.is-complete .demo-tracker-label { color: var(--color-text); }

.demo-tracker-line {
  flex: 1;
  height: 2px;
  background: var(--color-border);
  margin: 0 12px;
  min-width: 24px;
  transition: background 0.3s;
}

.demo-tracker-line.is-complete { background: var(--color-success); }

/* ============================================================
   Layout
   ============================================================ */

.demo-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 100px;
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 40px;
  align-items: start;
}

.demo-main { min-width: 0; }

.demo-side {
  position: sticky;
  top: calc(var(--nav-height) + 84px);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* ============================================================
   Step panels
   ============================================================ */

.demo-step { display: none; }
.demo-step.is-active { display: block; animation: demoFadeIn 0.25s ease; }

@keyframes demoFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.demo-step-kicker {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.demo-step-title {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--color-text);
  margin-bottom: 10px;
}

.demo-step-desc {
  font-size: 15px;
  color: var(--color-text-secondary);
  max-width: 640px;
  margin-bottom: 32px;
  line-height: 1.7;
}

/* ============================================================
   Action cards
   ============================================================ */

.demo-action {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 24px;
  margin-bottom: 20px;
  background: var(--color-surface);
  transition: opacity 0.2s;
}

.demo-action.is-locked { opacity: 0.5; }

.demo-action-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.demo-action-title {
  font-size: 15.5px;
  font-weight: 700;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}

.demo-action-desc {
  font-size: 13.5px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.demo-endpoint-line {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--color-text-secondary);
  margin: 10px 0 16px;
}

.demo-run-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-primary);
  color: white;
  border: none;
  font-size: 13.5px;
  font-weight: 600;
  padding: 9px 16px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.15s;
  font-family: var(--font-sans);
}

.demo-run-btn:hover:not(:disabled) {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}

.demo-run-btn:disabled {
  cursor: not-allowed;
  background: var(--color-text-muted);
  opacity: 0.6;
}

.demo-run-btn.is-done {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
}

.demo-run-btn .spinner {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: white;
  animation: demoSpin 0.6s linear infinite;
  display: none;
}

.demo-run-btn.is-loading .spinner { display: inline-block; }
.demo-run-btn.is-loading .btn-text { opacity: 0.7; }

@keyframes demoSpin { to { transform: rotate(360deg); } }

.demo-action-note {
  margin-top: 12px;
  font-size: 12.5px;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  opacity: 0;
  transition: opacity 0.2s;
}

.demo-action-note.is-visible { opacity: 1; }

/* Continue button between steps */
.demo-continue-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}

/* ============================================================
   Console (right rail)
   ============================================================ */

.demo-console {
  background: var(--color-code-bg);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.demo-console-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.demo-console-title {
  font-size: 12.5px;
  font-weight: 700;
  color: rgba(255,255,255,0.85);
  display: flex;
  align-items: center;
  gap: 8px;
}

.demo-console-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

.demo-console-clear {
  background: none;
  border: none;
  color: rgba(255,255,255,0.4);
  font-size: 11.5px;
  cursor: pointer;
  font-family: var(--font-sans);
}

.demo-console-clear:hover { color: rgba(255,255,255,0.8); }

.demo-console-log {
  max-height: 420px;
  overflow-y: auto;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.demo-console-placeholder {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: rgba(255,255,255,0.3);
}

.demo-console-entry {
  animation: demoFadeIn 0.25s ease;
  border-left: 2px solid var(--color-primary-light);
  padding-left: 10px;
}

.demo-console-entry.is-external { border-left-color: var(--color-accent); }

.demo-console-entry-head {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
}

.demo-console-entry-path {
  color: rgba(255,255,255,0.7);
  word-break: break-all;
}

.demo-console-entry-badge {
  font-size: 9.5px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 3px;
  letter-spacing: 0.3px;
}

.demo-console-entry-badge.external {
  background: rgba(6, 182, 212, 0.15);
  color: #67E8F9;
}

.demo-console-entry pre {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: #E2E8F0;
  white-space: pre-wrap;
  word-break: break-word;
  margin: 0;
}

/* ============================================================
   Session card
   ============================================================ */

.demo-session {
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 18px;
}

.demo-session-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.demo-session-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border-subtle);
  font-size: 13px;
}

.demo-session-row:last-child { border-bottom: none; }

.demo-session-key { color: var(--color-text-muted); }

.demo-session-val {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--color-text-muted);
  text-align: right;
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.demo-session-val.is-set {
  color: var(--color-text);
  font-weight: 600;
}

.demo-session-row.is-flash .demo-session-val {
  animation: demoFlash 0.9s ease;
}

@keyframes demoFlash {
  0% { color: var(--color-success); }
  100% { color: var(--color-text); }
}

/* ============================================================
   Completion banner
   ============================================================ */

.demo-complete {
  display: none;
  border: 1px solid rgba(16, 185, 129, 0.25);
  background: rgba(16, 185, 129, 0.06);
  border-radius: var(--radius-xl);
  padding: 28px;
  text-align: center;
  margin-top: 12px;
}

.demo-complete.is-visible { display: block; animation: demoFadeIn 0.3s ease; }

.demo-complete-icon { font-size: 32px; margin-bottom: 10px; }

.demo-complete h3 {
  font-size: 20px;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 8px;
}

.demo-complete p {
  font-size: 14px;
  color: var(--color-text-secondary);
  max-width: 440px;
  margin: 0 auto 20px;
}

.demo-complete-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 900px) {
  .demo-layout { grid-template-columns: 1fr; }
  .demo-side { position: static; }
  .demo-tracker-sub { display: none; }
}

@media (max-width: 640px) {
  .demo-tracker-label { display: none; }
  .demo-tracker { padding: 14px 16px; }
  .demo-mode-switch { grid-template-columns: 1fr; }
}