/* ═══════════════════════════════════════════════════
   NAILD 2025 — Chatbot Builder Workshop Styles
   ═══════════════════════════════════════════════════ */

/* ---------- CSS Variables ---------- */
:root {
  --c2c-primary: #1B4D6E;
  --c2c-accent: #E87722;
  --c2c-light: #EDF4F8;
  --code-bg: #282a36;
  --code-fg: #f8f8f2;
  --code-comment: #6272a4;
  --chat-user: #E87722;
  --chat-bot: #1B4D6E;
}

/* ════════════════ Landing Page ════════════════ */

.naild-hero {
  background: linear-gradient(135deg, var(--c2c-primary) 0%, #2a6f9e 100%);
  color: #fff;
  padding: 4rem 0 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.naild-hero h1 {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 2.8rem;
  margin-bottom: 0.25rem;
}

.naild-hero .subheading {
  font-size: 1.4rem;
  font-weight: 500;
  opacity: 0.95;
}

.naild-hero .accent-line {
  width: 80px;
  height: 4px;
  background: var(--c2c-accent);
  border-radius: 2px;
  margin: 1rem auto;
}

.naild-hero .subtitle {
  font-size: 1.05rem;
  opacity: 0.85;
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.6;
}

.naild-feature-cards .card {
  border: none;
  border-radius: 12px;
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s;
  height: 100%;
}

.naild-feature-cards .card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 24px rgba(0,0,0,0.12);
}

.naild-feature-cards .card .feature-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-size: 1.8rem;
}

.naild-feature-cards .card .feature-icon.icon-robot   { background: rgba(27,77,110,0.1); color: var(--c2c-primary); }
.naild-feature-cards .card .feature-icon.icon-code    { background: rgba(232,119,34,0.1); color: var(--c2c-accent); }
.naild-feature-cards .card .feature-icon.icon-award   { background: rgba(16,185,129,0.1); color: #10b981; }

.naild-credential-preview {
  background: var(--c2c-light);
  border-radius: 12px;
  padding: 2.5rem;
}

.naild-credential-preview .badge-mockup {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c2c-primary), var(--c2c-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 2.5rem;
  margin: 0 auto 1rem;
  box-shadow: 0 4px 12px rgba(27,77,110,0.3);
}

.naild-cta .btn-naild-primary {
  background: var(--c2c-accent);
  color: #fff;
  border: none;
  padding: 0.75rem 2rem;
  font-weight: 600;
  font-size: 1.1rem;
  border-radius: 50px;
  transition: all 0.3s;
}

.naild-cta .btn-naild-primary:hover {
  background: #d06a1a;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(232,119,34,0.35);
}

.naild-cta .btn-naild-primary:disabled,
.naild-cta .btn-naild-primary.disabled {
  background: #999;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* ════════════════ Step Indicator ════════════════ */

.naild-step-bar {
  background: var(--c2c-primary);
  padding: 12px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.naild-step-bar .step-list {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
}

.naild-step-bar .step-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  color: rgba(255,255,255,0.45);
  font-size: 0.85rem;
  font-weight: 500;
  position: relative;
  transition: color 0.3s;
}

.naild-step-bar .step-item .step-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  background: rgba(255,255,255,0.15);
  transition: all 0.3s;
}

.naild-step-bar .step-item.active {
  color: #fff;
}

.naild-step-bar .step-item.active .step-num {
  background: var(--c2c-accent);
  color: #fff;
}

.naild-step-bar .step-item.completed .step-num {
  background: #10b981;
  color: #fff;
}

.naild-step-bar .step-item.completed {
  color: rgba(255,255,255,0.7);
}

.naild-step-bar .step-connector {
  width: 40px;
  height: 2px;
  background: rgba(255,255,255,0.2);
  flex-shrink: 0;
}

.naild-step-bar .step-connector.completed {
  background: #10b981;
}

/* ════════════════ Workshop Layout ════════════════ */

.naild-workshop {
  min-height: calc(100vh - 120px);
}

.naild-step {
  display: none;
  animation: naildFadeIn 0.4s ease;
}

.naild-step.active {
  display: block;
}

@keyframes naildFadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- Step 1: Welcome --- */

.naild-welcome {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.naild-welcome h1 {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  color: var(--c2c-primary);
  font-size: 2.2rem;
}

.naild-welcome .info-card {
  background: #fff;
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.naild-welcome .info-card .info-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.naild-welcome .info-card .info-icon.ai       { background: rgba(27,77,110,0.1); color: var(--c2c-primary); }
.naild-welcome .info-card .info-icon.chatbot   { background: rgba(232,119,34,0.1); color: var(--c2c-accent); }
.naild-welcome .info-card .info-icon.build     { background: rgba(16,185,129,0.1); color: #10b981; }
.naild-welcome .info-card .info-icon.ready     { background: rgba(139,92,246,0.1); color: #8b5cf6; }

/* --- Step 2: Builder 3-panel --- */

.naild-builder {
  display: flex;
  height: calc(100vh - 120px);
  overflow: hidden;
}

/* Config panel */
.naild-config-panel {
  width: 320px;
  min-width: 320px;
  background: #fff;
  border-right: 1px solid #e0e0e0;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.naild-config-panel .config-header {
  padding: 16px;
  border-bottom: 1px solid #e0e0e0;
}

.naild-config-panel .config-header h2 {
  font-size: 14px;
  color: var(--c2c-primary);
  font-weight: 600;
  margin-bottom: 4px;
}

.naild-config-panel .config-header p {
  font-size: 12px;
  color: #666;
  margin: 0;
}

.naild-config-section {
  padding: 16px;
  border-bottom: 1px solid #f0f0f0;
}

.naild-config-section h3 {
  font-size: 13px;
  color: var(--c2c-primary);
  font-weight: 600;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.naild-config-section .step-num {
  background: var(--c2c-accent);
  color: #fff;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
}

/* Sub-step dots */
.naild-substep-dots {
  display: flex;
  gap: 6px;
  padding: 8px 16px;
  border-bottom: 1px solid #f0f0f0;
}

.naild-substep-dots .substep-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #e0e0e0;
  transition: all 0.3s;
  cursor: pointer;
}

.naild-substep-dots .substep-dot.active {
  background: var(--c2c-accent);
  transform: scale(1.2);
}

.naild-substep-dots .substep-dot.completed {
  background: #10b981;
}

/* Text inputs */
.naild-text-input {
  width: 100%;
  padding: 8px 12px;
  border: 1.5px solid #e0e0e0;
  border-radius: 8px;
  font-size: 13px;
  outline: none;
  transition: border-color 0.2s;
  background: #fff;
  color: #333;
}

.naild-text-input:focus {
  border-color: var(--c2c-accent);
  box-shadow: 0 0 0 3px rgba(232,119,34,0.1);
}

/* Drag blocks */
.naild-drag-options {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.naild-drag-block {
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  cursor: grab;
  user-select: none;
  transition: all 0.2s;
  border: 1.5px solid;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.naild-drag-block:active {
  cursor: grabbing;
  transform: scale(0.95);
}

.naild-drag-block > i {
  pointer-events: none;
}

.naild-drag-block.personality {
  background: #E3F2FD;
  border-color: #90CAF9;
  color: #1565C0;
}

.naild-drag-block.purpose {
  background: #F3E5F5;
  border-color: #CE93D8;
  color: #7B1FA2;
}

.naild-drag-block.placed {
  opacity: 0.35;
  cursor: default;
  pointer-events: none;
}

.naild-drag-block .remove-block {
  display: none;
  cursor: pointer;
  margin-left: 4px;
  font-size: 14px;
  font-weight: 700;
  opacity: 0.6;
}

.naild-drag-block .remove-block:hover {
  opacity: 1;
}

.naild-drag-block.in-zone .remove-block {
  display: inline;
}

/* Drop zones */
.naild-drop-zone {
  min-height: 48px;
  border: 2px dashed #e0e0e0;
  border-radius: 8px;
  padding: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  transition: all 0.2s;
  align-items: center;
}

.naild-drop-zone.dragover {
  border-color: var(--c2c-accent);
  background: rgba(232,119,34,0.05);
}

.naild-drop-zone .drop-label {
  font-size: 11px;
  color: #999;
  width: 100%;
  text-align: center;
  pointer-events: none;
  padding: 4px;
}

/* Toggle switches */
.naild-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 0;
}

.naild-toggle-row label {
  font-size: 12px;
  color: #333;
}

.naild-toggle {
  position: relative;
  width: 38px;
  height: 22px;
  flex-shrink: 0;
}

.naild-toggle input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}

.naild-toggle-slider {
  position: absolute;
  inset: 0;
  background: #ddd;
  border-radius: 11px;
  cursor: pointer;
  transition: background 0.2s;
}

.naild-toggle-slider::before {
  content: '';
  position: absolute;
  height: 18px;
  width: 18px;
  left: 2px;
  bottom: 2px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s;
}

.naild-toggle input:checked + .naild-toggle-slider {
  background: var(--c2c-accent);
}

.naild-toggle input:checked + .naild-toggle-slider::before {
  transform: translateX(16px);
}

/* File upload */
.naild-file-upload {
  border: 2px dashed #e0e0e0;
  border-radius: 8px;
  padding: 16px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
}

.naild-file-upload:hover {
  border-color: var(--c2c-accent);
  background: rgba(232,119,34,0.03);
}

.naild-file-upload .icon {
  font-size: 1.5rem;
  margin-bottom: 4px;
}

.naild-file-upload p {
  font-size: 11px;
  color: #666;
  margin: 0;
}

.naild-file-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  background: var(--c2c-light);
  border-radius: 12px;
  font-size: 11px;
  margin-top: 8px;
}

.naild-file-chip .remove {
  cursor: pointer;
  color: #999;
  font-weight: 700;
  font-size: 14px;
}

.naild-file-chip .remove:hover {
  color: #e00;
}

/* Code preview panel */
.naild-code-panel {
  flex: 1;
  background: var(--code-bg);
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.naild-code-panel .code-header {
  padding: 12px 16px;
  border-bottom: 1px solid #3a3a4a;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.naild-code-panel .code-header h2 {
  font-size: 13px;
  color: #ccc;
  font-weight: 500;
  margin: 0;
}

.naild-code-panel .code-header .tag {
  font-size: 10px;
  padding: 2px 8px;
  background: rgba(232,119,34,0.2);
  color: var(--c2c-accent);
  border-radius: 4px;
}

#code-content {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
  font-family: 'Fira Code', 'Consolas', 'Monaco', monospace;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--code-fg);
}

#code-content pre {
  margin: 0;
  background: transparent;
  padding: 0;
  border: none;
}

#code-content code {
  font-size: 12.5px;
  line-height: 1.7;
}

.code-annotation {
  background: rgba(232,119,34,0.1);
  border-left: 3px solid var(--c2c-accent);
  margin: 10px 0;
  padding: 8px 12px;
  border-radius: 0 6px 6px 0;
  color: #ccc;
  font-family: 'Inter', 'Segoe UI', sans-serif;
  font-size: 11.5px;
  line-height: 1.5;
}

.code-annotation strong {
  color: var(--c2c-accent);
}

/* Chat preview panel */
.naild-chat-panel {
  width: 340px;
  min-width: 340px;
  background: #fff;
  border-left: 1px solid #e0e0e0;
  display: flex;
  flex-direction: column;
}

.naild-chat-panel .chat-header {
  padding: 12px 16px;
  border-bottom: 1px solid #e0e0e0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.naild-chat-panel .chat-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--c2c-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  flex-shrink: 0;
}

.naild-chat-panel .chat-header-info h3 {
  font-size: 14px;
  margin: 0;
  font-weight: 600;
}

.naild-chat-panel .chat-header-info p {
  font-size: 11px;
  color: #666;
  margin: 0;
}

.naild-chat-panel .chat-status {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  margin-left: auto;
}

/* Chat messages */
#chat-messages {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chat-bubble {
  max-width: 85%;
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 13px;
  line-height: 1.5;
  animation: chatFadeIn 0.3s ease;
  word-wrap: break-word;
}

@keyframes chatFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.chat-bubble.assistant {
  background: var(--c2c-light);
  border-bottom-left-radius: 4px;
  align-self: flex-start;
  color: #333;
}

.chat-bubble.user {
  background: var(--c2c-accent);
  color: #fff;
  border-bottom-right-radius: 4px;
  align-self: flex-end;
}

.chat-bubble .sender {
  font-size: 10px;
  font-weight: 700;
  margin-bottom: 2px;
}

.chat-bubble.assistant .sender { color: var(--c2c-primary); }
.chat-bubble.user .sender      { color: rgba(255,255,255,0.8); }

/* Typing indicator */
.typing-indicator {
  display: flex;
  gap: 4px;
  padding: 10px 14px;
  align-self: flex-start;
}

.typing-indicator.hidden { display: none; }

.typing-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #999;
  animation: typingBounce 1.4s infinite;
}

.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
  0%, 60%, 100% { transform: translateY(0); }
  30%           { transform: translateY(-6px); }
}

/* Chat input */
.naild-chat-input {
  padding: 12px 16px;
  border-top: 1px solid #e0e0e0;
  display: flex;
  gap: 8px;
}

.naild-chat-input input {
  flex: 1;
  padding: 8px 14px;
  border: 1.5px solid #e0e0e0;
  border-radius: 24px;
  font-size: 13px;
  outline: none;
  background: #fff;
  color: #333;
}

.naild-chat-input input:focus {
  border-color: var(--c2c-accent);
}

.naild-chat-input button {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: none;
  background: var(--c2c-accent);
  color: #fff;
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.1s;
  flex-shrink: 0;
}

.naild-chat-input button:active {
  transform: scale(0.9);
}

.naild-chat-input button:disabled {
  background: #ccc;
  cursor: not-allowed;
}

/* Chat disabled overlay */
.naild-chat-disabled {
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  z-index: 10;
  font-size: 13px;
  color: #666;
  border-radius: 0;
}

.naild-chat-disabled.hidden {
  display: none;
}

/* --- Step 3: Test & Iterate --- */

.naild-test-layout {
  display: flex;
  gap: 1.5rem;
  max-width: 960px;
  margin: 2rem auto;
  padding: 0 1rem;
  min-height: 60vh;
}

.naild-test-chat {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
  overflow: hidden;
  min-height: 480px;
}

.naild-test-sidebar {
  width: 260px;
  flex-shrink: 0;
}

.naild-prompt-suggestion {
  background: #fff;
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 12.5px;
  color: #555;
  cursor: pointer;
  transition: all 0.2s;
  border: 1px solid #e0e0e0;
}

.naild-prompt-suggestion:hover {
  border-color: var(--c2c-accent);
  color: var(--c2c-primary);
  background: rgba(232,119,34,0.04);
}

.naild-msg-counter {
  font-size: 13px;
  font-weight: 600;
  color: var(--c2c-primary);
}

.naild-msg-counter .progress {
  height: 6px;
  border-radius: 3px;
}

.naild-msg-counter .progress-bar {
  background: var(--c2c-accent);
}

/* --- Step 4: Reflect --- */

.naild-reflect {
  max-width: 720px;
  margin: 2rem auto;
  padding: 0 1rem;
}

.naild-reflect h2 {
  font-family: 'Poppins', sans-serif;
  color: var(--c2c-primary);
  font-weight: 700;
}

.naild-reflect .reflect-field {
  margin-bottom: 1.5rem;
}

.naild-reflect .reflect-field label {
  font-weight: 600;
  font-size: 0.95rem;
  color: #333;
  margin-bottom: 0.5rem;
  display: block;
}

.naild-reflect textarea {
  width: 100%;
  border: 1.5px solid #e0e0e0;
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 14px;
  resize: vertical;
  min-height: 80px;
  outline: none;
  transition: border-color 0.2s;
  background: #fff;
  color: #333;
}

.naild-reflect textarea:focus {
  border-color: var(--c2c-accent);
  box-shadow: 0 0 0 3px rgba(232,119,34,0.1);
}

.naild-reflect .char-hint {
  font-size: 11px;
  color: #999;
  margin-top: 4px;
}

/* --- Step Complete: Congratulations --- */

.naild-congrats {
  text-align: center;
  max-width: 600px;
  margin: 3rem auto;
  padding: 0 1rem;
}

.naild-congrats h1 {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  color: var(--c2c-primary);
  font-size: 2.5rem;
}

.naild-congrats .credential-badge {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c2c-primary), var(--c2c-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 1.5rem auto;
  color: #fff;
  font-size: 3rem;
  box-shadow: 0 8px 24px rgba(27,77,110,0.3);
}

.naild-congrats .credential-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: #444;
}

.naild-congrats .action-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

/* ════════════════ Buttons ════════════════ */

.btn-naild {
  background: var(--c2c-accent);
  color: #fff;
  border: none;
  padding: 0.6rem 1.5rem;
  font-weight: 600;
  border-radius: 8px;
  transition: all 0.2s;
  font-size: 0.9rem;
}

.btn-naild:hover {
  background: #d06a1a;
  color: #fff;
  transform: translateY(-1px);
}

.btn-naild:disabled {
  background: #ccc;
  color: #888;
  cursor: not-allowed;
  transform: none;
}

.btn-naild-outline {
  background: transparent;
  color: var(--c2c-primary);
  border: 2px solid var(--c2c-primary);
  padding: 0.6rem 1.5rem;
  font-weight: 600;
  border-radius: 8px;
  transition: all 0.2s;
  font-size: 0.9rem;
}

.btn-naild-outline:hover {
  background: var(--c2c-primary);
  color: #fff;
}

/* ════════════════ Responsive ════════════════ */

@media (max-width: 992px) {
  .naild-builder {
    flex-direction: column;
    height: auto;
    overflow: visible;
  }

  .naild-config-panel,
  .naild-code-panel,
  .naild-chat-panel {
    width: 100%;
    min-width: 100%;
    max-width: 100%;
    border: none;
    border-bottom: 1px solid #e0e0e0;
  }

  .naild-config-panel {
    max-height: 50vh;
    overflow-y: auto;
  }

  .naild-code-panel {
    min-height: 300px;
    max-height: 400px;
  }

  .naild-chat-panel {
    min-height: 400px;
    position: relative;
    border-bottom: none;
  }

  .naild-test-layout {
    flex-direction: column;
  }

  .naild-test-sidebar {
    width: 100%;
  }

  .naild-hero h1 {
    font-size: 2rem;
  }

  .naild-step-bar .step-item .step-label {
    display: none;
  }

  .naild-agent-builder {
    flex-direction: column;
    height: auto;
    overflow: visible;
  }
  .naild-agent-config,
  .naild-agent-trace,
  .naild-agent-code {
    width: 100%;
    min-width: 100%;
    max-width: 100%;
    border: none;
    border-bottom: 1px solid #e0e0e0;
  }
  .naild-agent-config { max-height: 50vh; overflow-y: auto; }
  .naild-agent-trace { min-height: 300px; }
  .naild-agent-code { min-height: 200px; }
}

@media (max-width: 576px) {
  .naild-hero h1 {
    font-size: 1.6rem;
  }

  .naild-hero .subheading {
    font-size: 1.1rem;
  }

  .naild-step-bar .step-connector {
    width: 20px;
  }
}

/* ════════════════ Dark Mode ════════════════ */

[data-theme="dark"] .naild-welcome .info-card {
  background: var(--gray-100);
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

[data-theme="dark"] .naild-welcome .info-card h4,
[data-theme="dark"] .naild-welcome .info-card p {
  color: var(--gray-800);
}

[data-theme="dark"] .naild-welcome h1 {
  color: #60a5fa;
}

[data-theme="dark"] .naild-config-panel {
  background: var(--gray-100);
  border-right-color: var(--gray-300);
}

[data-theme="dark"] .naild-config-panel .config-header {
  border-bottom-color: var(--gray-300);
}

[data-theme="dark"] .naild-config-panel .config-header h2 {
  color: #60a5fa;
}

[data-theme="dark"] .naild-config-panel .config-header p {
  color: var(--gray-600);
}

[data-theme="dark"] .naild-config-section {
  border-bottom-color: var(--gray-300);
}

[data-theme="dark"] .naild-config-section h3 {
  color: #60a5fa;
}

[data-theme="dark"] .naild-text-input {
  background: var(--gray-200);
  border-color: var(--gray-300);
  color: var(--gray-800);
}

[data-theme="dark"] .naild-text-input:focus {
  border-color: var(--c2c-accent);
  background: var(--gray-100);
}

[data-theme="dark"] .naild-drop-zone {
  border-color: var(--gray-300);
}

[data-theme="dark"] .naild-drop-zone .drop-label {
  color: var(--gray-500);
}

[data-theme="dark"] .naild-toggle-row label {
  color: var(--gray-800);
}

[data-theme="dark"] .naild-toggle-slider {
  background: var(--gray-300);
}

[data-theme="dark"] .naild-substep-dots .substep-dot {
  background: var(--gray-300);
}

[data-theme="dark"] .naild-file-upload {
  border-color: var(--gray-300);
}

[data-theme="dark"] .naild-file-upload p {
  color: var(--gray-600);
}

[data-theme="dark"] .naild-file-chip {
  background: var(--gray-200);
  color: var(--gray-800);
}

[data-theme="dark"] .naild-chat-panel {
  background: var(--gray-100);
  border-left-color: var(--gray-300);
}

[data-theme="dark"] .naild-chat-panel .chat-header {
  border-bottom-color: var(--gray-300);
}

[data-theme="dark"] .naild-chat-panel .chat-header-info h3 {
  color: var(--gray-800);
}

[data-theme="dark"] .naild-chat-panel .chat-header-info p {
  color: var(--gray-600);
}

[data-theme="dark"] .chat-bubble.assistant {
  background: var(--gray-200);
  color: var(--gray-800);
}

[data-theme="dark"] .chat-bubble.assistant .sender {
  color: #60a5fa;
}

[data-theme="dark"] .naild-chat-input {
  border-top-color: var(--gray-300);
}

[data-theme="dark"] .naild-chat-input input {
  background: var(--gray-200);
  border-color: var(--gray-300);
  color: var(--gray-800);
}

[data-theme="dark"] .naild-chat-disabled {
  background: rgba(30,30,58,0.92);
  color: var(--gray-600);
}

[data-theme="dark"] .naild-test-chat {
  background: var(--gray-100);
  box-shadow: 0 2px 12px rgba(0,0,0,0.2);
}

[data-theme="dark"] .naild-prompt-suggestion {
  background: var(--gray-100);
  border-color: var(--gray-300);
  color: var(--gray-700);
}

[data-theme="dark"] .naild-prompt-suggestion:hover {
  border-color: var(--c2c-accent);
  background: var(--gray-200);
}

[data-theme="dark"] .naild-reflect h2 {
  color: #60a5fa;
}

[data-theme="dark"] .naild-reflect .reflect-field label {
  color: var(--gray-800);
}

[data-theme="dark"] .naild-reflect textarea {
  background: var(--gray-200);
  border-color: var(--gray-300);
  color: var(--gray-800);
}

[data-theme="dark"] .naild-reflect textarea:focus {
  border-color: var(--c2c-accent);
  background: var(--gray-100);
}

[data-theme="dark"] .naild-reflect .char-hint {
  color: var(--gray-500);
}

[data-theme="dark"] .naild-congrats h1 {
  color: #60a5fa;
}

[data-theme="dark"] .naild-congrats .credential-name {
  color: var(--gray-700);
}

[data-theme="dark"] .naild-credential-preview {
  background: var(--gray-200);
}

[data-theme="dark"] .naild-feature-cards .card {
  background: var(--gray-100);
}

[data-theme="dark"] .naild-feature-cards .card h5 {
  color: var(--gray-800);
}

[data-theme="dark"] .naild-feature-cards .card p {
  color: var(--gray-700);
}

[data-theme="dark"] .naild-learn-callout { background: rgba(232,119,34,0.08); color: var(--gray-700); }
[data-theme="dark"] .naild-learn-more .learn-detail { background: rgba(255,255,255,0.04); color: var(--gray-700); }
[data-theme="dark"] .naild-agent-config { background: var(--gray-100); border-right-color: var(--gray-300); }
[data-theme="dark"] .naild-agent-trace { background: var(--gray-100); }
[data-theme="dark"] .naild-agent-trace .trace-header { border-bottom-color: var(--gray-300); }
[data-theme="dark"] .naild-agent-trace .trace-header h2 { color: #60a5fa; }
[data-theme="dark"] .trace-phase { background: var(--gray-200); box-shadow: 0 1px 4px rgba(0,0,0,0.2); }
[data-theme="dark"] .trace-phase-body { color: var(--gray-700); border-top-color: var(--gray-300); }
[data-theme="dark"] .trace-phase-annotation { color: var(--gray-500); border-top-color: var(--gray-400); }
[data-theme="dark"] .trace-empty { color: var(--gray-500); }
[data-theme="dark"] .naild-apply .info-card { background: var(--gray-100); box-shadow: 0 2px 8px rgba(0,0,0,0.2); }
[data-theme="dark"] .naild-apply .info-card h4,
[data-theme="dark"] .naild-apply .info-card p { color: var(--gray-800); }
[data-theme="dark"] .naild-apply h2 { color: #60a5fa; }

/* ════════════════ Loading Spinner ════════════════ */

.naild-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: naildSpin 0.6s linear infinite;
}

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

/* ════════════════ Learn Callouts (Step 2) ════════════════ */
.naild-learn-callout {
  background: rgba(232,119,34,0.06);
  border-left: 3px solid var(--c2c-accent);
  padding: 8px 12px;
  margin: 0 16px 0;
  border-radius: 0 6px 6px 0;
  font-size: 11.5px;
  color: #555;
  line-height: 1.4;
}
.naild-learn-callout i { color: var(--c2c-accent); margin-right: 4px; }

/* ════════════════ Expandable Learn More (Step 1) ════════════════ */
.naild-learn-more { margin-top: 8px; }
.naild-learn-more summary {
  font-size: 12px;
  color: var(--c2c-accent);
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}
.naild-learn-more summary::-webkit-details-marker { display: none; }
.naild-learn-more summary::before { content: '\25B6\00a0'; font-size: 10px; }
.naild-learn-more[open] summary::before { content: '\25BC\00a0'; }
.naild-learn-more .learn-detail {
  margin-top: 6px;
  padding: 8px 12px;
  background: rgba(27,77,110,0.04);
  border-radius: 6px;
  font-size: 12px;
  color: #444;
  line-height: 1.5;
}

/* ════════════════ Required Learn Cards (Step 1 gating) ════════════════ */
.naild-required-learn summary {
  font-size: 12px;
  color: var(--c2c-accent);
  cursor: pointer;
  font-weight: 600;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
}
.naild-required-learn summary::-webkit-details-marker { display: none; }
.naild-required-learn summary::before { content: '\25B6\00a0'; font-size: 10px; transition: transform 0.2s; }
.naild-required-learn[open] summary::before { content: '\25BC\00a0'; }

.learn-required-badge {
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: rgba(232,119,34,0.12);
  color: var(--c2c-accent);
  padding: 1px 6px;
  border-radius: 4px;
}

.learn-progress-hint {
  font-size: 0.85rem;
  color: #888;
  transition: all 0.3s;
}
.learn-progress-hint.complete {
  color: #10b981;
}
.learn-progress-count {
  font-weight: 600;
}

/* ════════════════ Config Helper Text (Step 2) ════════════════ */
.config-helper {
  font-size: 12px;
  color: #666;
  line-height: 1.5;
  margin-bottom: 8px;
}
.config-helper em { color: var(--c2c-primary); font-style: italic; }
.config-helper strong { color: var(--c2c-primary); }

[data-theme="dark"] .config-helper { color: var(--gray-600); }
[data-theme="dark"] .config-helper em,
[data-theme="dark"] .config-helper strong { color: #60a5fa; }
[data-theme="dark"] .learn-required-badge { background: rgba(232,119,34,0.2); }
[data-theme="dark"] .learn-progress-hint { color: var(--gray-500); }
[data-theme="dark"] .learn-progress-hint.complete { color: #10b981; }

/* ════════════════ Agent Builder (Step 4) ════════════════ */
.naild-agent-builder {
  display: flex;
  height: calc(100vh - 120px);
  overflow: hidden;
}

.naild-agent-config {
  width: 320px;
  min-width: 320px;
  background: #fff;
  border-right: 1px solid #e0e0e0;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.naild-agent-trace {
  flex: 1;
  background: #fafbfc;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
}

.naild-agent-trace .trace-header {
  padding: 12px 16px;
  border-bottom: 1px solid #e0e0e0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.naild-agent-trace .trace-header h2 {
  font-size: 13px;
  color: var(--c2c-primary);
  font-weight: 500;
  margin: 0;
}

.naild-agent-trace .trace-header .tag {
  font-size: 10px;
  padding: 2px 8px;
  background: rgba(16,185,129,0.15);
  color: #10b981;
  border-radius: 4px;
  font-weight: 600;
}

#agent-trace-content {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.naild-agent-code {
  width: 340px;
  min-width: 340px;
  background: var(--code-bg);
  display: flex;
  flex-direction: column;
}

.naild-agent-code .code-header {
  padding: 12px 16px;
  border-bottom: 1px solid #3a3a4a;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.naild-agent-code .code-header h2 {
  font-size: 13px;
  color: #ccc;
  font-weight: 500;
  margin: 0;
}

.naild-agent-code .code-header .tag {
  font-size: 10px;
  padding: 2px 8px;
  background: rgba(139,92,246,0.2);
  color: #a78bfa;
  border-radius: 4px;
  font-weight: 600;
}

#agent-code-content {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
  font-family: 'Fira Code', 'Consolas', 'Monaco', monospace;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--code-fg);
}

.agent-code-block {
  margin-bottom: 12px;
  animation: naildFadeIn 0.4s ease;
}

.agent-code-block pre {
  margin: 0;
  background: transparent;
  padding: 0;
  border: none;
}

.agent-code-block code {
  font-size: 12.5px;
  line-height: 1.7;
}

/* ════════════════ Trace Phase Cards ════════════════ */
.trace-phase {
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
  overflow: hidden;
  flex-shrink: 0;
  animation: traceSlideIn 0.5s ease;
}

@keyframes traceSlideIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.trace-phase-header {
  padding: 8px 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.trace-phase-badge {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 2px 10px;
  border-radius: 4px;
  letter-spacing: 0.5px;
}

.trace-phase.thinking .trace-phase-badge { background: rgba(27,77,110,0.12); color: var(--c2c-primary); }
.trace-phase.planning .trace-phase-badge { background: rgba(139,92,246,0.12); color: #7c3aed; }
.trace-phase.tool-use .trace-phase-badge { background: rgba(232,119,34,0.12); color: var(--c2c-accent); }
.trace-phase.evaluation .trace-phase-badge { background: rgba(16,185,129,0.12); color: #059669; }
.trace-phase.response .trace-phase-badge { background: rgba(59,130,246,0.12); color: #2563eb; }

.trace-phase-body {
  padding: 10px 14px;
  font-size: 13px;
  line-height: 1.6;
  color: #444;
  border-top: 1px solid #f0f0f0;
}

.trace-phase-annotation {
  font-size: 11px;
  color: #888;
  font-style: italic;
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px dashed #e0e0e0;
}

.trace-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: #999;
  text-align: center;
  font-size: 13px;
}

/* ════════════════ Agent Drag Block Colors ════════════════ */
.naild-drag-block.goal { background: #FFF3E0; border-color: #FFB74D; color: #E65100; }
.naild-drag-block.tool { background: #E8F5E9; border-color: #81C784; color: #2E7D32; }
.naild-drag-block.strategy { background: #F3E5F5; border-color: #CE93D8; color: #6A1B9A; }

/* ════════════════ Discover Agents (Step 4) ════════════════ */
.naild-discover {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1rem;
}
.naild-discover h2 {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  color: var(--c2c-primary);
}
.naild-discover .info-card {
  background: #fff;
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.naild-discover .info-card .info-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}
.naild-discover .info-card .info-icon.agent { background: rgba(27,77,110,0.1); color: var(--c2c-primary); }
.naild-discover .info-card .info-icon.loop { background: rgba(139,92,246,0.1); color: #8b5cf6; }
.naild-discover .info-card .info-icon.tools { background: rgba(232,119,34,0.1); color: var(--c2c-accent); }
.naild-discover .info-card .info-icon.strategy { background: rgba(16,185,129,0.1); color: #10b981; }
.naild-discover .info-card .info-icon.rocket { background: rgba(59,130,246,0.1); color: #3b82f6; }

[data-theme="dark"] .naild-discover .info-card { background: var(--gray-100); box-shadow: 0 2px 8px rgba(0,0,0,0.2); }
[data-theme="dark"] .naild-discover .info-card h4,
[data-theme="dark"] .naild-discover .info-card p { color: var(--gray-800); }
[data-theme="dark"] .naild-discover h2 { color: #60a5fa; }

/* ════════════════ AI in Your Life (Step 6) ════════════════ */
.naild-apply {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1rem;
}
.naild-apply h2 {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  color: var(--c2c-primary);
}
.naild-apply .info-card {
  background: #fff;
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.naild-apply .info-card .info-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}
.naild-apply .info-card .info-icon.ai { background: rgba(27,77,110,0.1); color: var(--c2c-primary); }
.naild-apply .info-card .info-icon.chatbot { background: rgba(232,119,34,0.1); color: var(--c2c-accent); }
.naild-apply .info-card .info-icon.build { background: rgba(16,185,129,0.1); color: #10b981; }
.naild-apply .info-card .info-icon.ready { background: rgba(139,92,246,0.1); color: #8b5cf6; }