/**
 * CoachPro AI Assistant — Frontend Styles
 * Scoped to .coachpro-app to prevent conflicts with WordPress themes.
 *
 * @package CoachPro_AI_Assistant
 * @version 1.0.0
 */

/* ============================================================
   CSS Custom Properties (theme tokens)
   ============================================================ */
.coachpro-app {
  --cp-bg:         #f9fafb;
  --cp-surface:    #ffffff;
  --cp-border:     #e5e7eb;
  --cp-text:       #111827;
  --cp-muted:      #6b7280;
  --cp-primary:    #6366f1;
  --cp-primary-h:  #4f46e5;
  --cp-danger:     #ef4444;
  --cp-success:    #10b981;
  --cp-warning:    #f59e0b;
  --cp-radius:     8px;
  --cp-shadow:     0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
  --cp-shadow-lg:  0 4px 16px rgba(0,0,0,.12);
  --cp-font:       -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --cp-nav-bg:     #1e1b4b;
  --cp-nav-text:   #e0e7ff;
  --cp-nav-active: #6366f1;

  font-family: var(--cp-font);
  color: var(--cp-text);
  background: var(--cp-bg);
  min-height: 400px;
  box-sizing: border-box;
}

/* Dark theme */
.coachpro-app[data-theme="dark"] {
  --cp-bg:      #0f0f0f;
  --cp-surface: #1a1a1a;
  --cp-border:  #2d2d2d;
  --cp-text:    #f3f4f6;
  --cp-muted:   #9ca3af;
  --cp-nav-bg:  #111111;
}

/* ============================================================
   Reset — scoped
   ============================================================ */
.coachpro-app *,
.coachpro-app *::before,
.coachpro-app *::after {
  box-sizing: border-box;
}

.coachpro-app h1, .coachpro-app h2, .coachpro-app h3,
.coachpro-app h4, .coachpro-app h5, .coachpro-app h6 {
  margin: 0 0 .5em;
  font-weight: 600;
  line-height: 1.3;
}

.coachpro-app p { margin: 0 0 .75em; }
.coachpro-app ul { list-style: none; padding: 0; margin: 0; }

/* ============================================================
   Layout
   ============================================================ */
.coachpro-app {
  display: flex;
  flex-direction: column;
}

.cp-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  background: var(--cp-nav-bg);
  padding: 8px 16px;
  border-radius: var(--cp-radius) var(--cp-radius) 0 0;
}

.cp-nav-link {
  color: var(--cp-nav-text);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: .875rem;
  font-weight: 500;
  transition: background .15s;
}

.cp-nav-link:hover,
.cp-nav-link.active {
  background: var(--cp-nav-active);
  color: #fff;
}

.cp-nav-logout { margin-left: auto; opacity: .7; }
.cp-nav-logout:hover { opacity: 1; background: var(--cp-danger) !important; }

.cp-main {
  flex: 1;
  padding: 24px;
  background: var(--cp-bg);
}

/* Chat layout */
.cp-chat-layout {
  display: flex;
  gap: 0;
  min-height: 500px;
  padding: 0;
}

.cp-chat-sidebar {
  width: 260px;
  min-width: 200px;
  background: var(--cp-surface);
  border-right: 1px solid var(--cp-border);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
}

.cp-chat-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--cp-bg);
  overflow: hidden;
}

.cp-msg-list {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 420px;
}

.cp-chat-input-area {
  border-top: 1px solid var(--cp-border);
  padding: 12px;
  display: flex;
  gap: 8px;
  align-items: flex-end;
  background: var(--cp-surface);
}

.cp-chat-input-area .cp-textarea {
  flex: 1;
  margin: 0;
}

/* ============================================================
   Cards & containers
   ============================================================ */
.cp-card {
  background: var(--cp-surface);
  border: 1px solid var(--cp-border);
  border-radius: var(--cp-radius);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: var(--cp-shadow);
}

.cp-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.cp-plans-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.cp-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.cp-section-header h2 { margin: 0; }

/* ============================================================
   Auth form
   ============================================================ */
.cp-auth-form {
  max-width: 420px;
  margin: 40px auto;
}

.cp-center { text-align: center; }

/* ============================================================
   Buttons
   ============================================================ */
.cp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--cp-radius);
  font-size: .875rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  background: var(--cp-border);
  color: var(--cp-text);
  transition: background .15s, transform .1s;
  white-space: nowrap;
}

.cp-btn:hover { background: #d1d5db; }
.cp-btn:active { transform: scale(.97); }
.cp-btn:disabled { opacity: .5; cursor: not-allowed; }

.cp-btn-primary {
  background: var(--cp-primary);
  color: #fff;
  border-color: transparent;
}
.cp-btn-primary:hover { background: var(--cp-primary-h); }

.cp-btn-outline {
  background: transparent;
  border-color: var(--cp-primary);
  color: var(--cp-primary);
}
.cp-btn-outline:hover { background: var(--cp-primary); color: #fff; }

.cp-btn-danger { background: var(--cp-danger); color: #fff; border-color: transparent; }
.cp-btn-danger:hover { background: #dc2626; }

.cp-btn-sm { padding: 4px 10px; font-size: .8rem; }
.cp-full { width: 100%; display: flex; }

/* ============================================================
   Form elements
   ============================================================ */
.cp-input,
.cp-textarea,
.cp-select {
  display: block;
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--cp-border);
  border-radius: var(--cp-radius);
  font-size: .9rem;
  color: var(--cp-text);
  background: var(--cp-surface);
  margin-bottom: 12px;
  transition: border-color .15s;
  font-family: inherit;
}

.cp-input:focus,
.cp-textarea:focus,
.cp-select:focus {
  outline: none;
  border-color: var(--cp-primary);
  box-shadow: 0 0 0 2px rgba(99,102,241,.2);
}

.cp-textarea { resize: vertical; min-height: 80px; }
.cp-label { display: block; font-size: .85rem; font-weight: 500; margin-bottom: 4px; color: var(--cp-muted); }

/* ============================================================
   Status messages
   ============================================================ */
.cp-error {
  background: #fef2f2;
  border: 1px solid #fca5a5;
  color: #b91c1c;
  padding: 10px 14px;
  border-radius: var(--cp-radius);
  font-size: .875rem;
  margin-bottom: 12px;
}

.cp-success {
  background: #ecfdf5;
  border: 1px solid #6ee7b7;
  color: #047857;
  padding: 10px 14px;
  border-radius: var(--cp-radius);
  font-size: .875rem;
  margin-bottom: 12px;
}

.cp-loading {
  text-align: center;
  padding: 40px;
  color: var(--cp-muted);
}

.cp-empty {
  text-align: center;
  padding: 32px;
  color: var(--cp-muted);
  font-style: italic;
}

.cp-hidden { display: none !important; }

/* ============================================================
   Stats
   ============================================================ */
.cp-stats-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
}

.cp-stat-card {
  background: var(--cp-surface);
  border: 1px solid var(--cp-border);
  border-radius: var(--cp-radius);
  padding: 20px 28px;
  text-align: center;
  min-width: 140px;
  box-shadow: var(--cp-shadow);
}

.cp-stat-icon { font-size: 1.5rem; margin-bottom: 6px; }
.cp-stat-value { font-size: 1.8rem; font-weight: 700; color: var(--cp-primary); }
.cp-stat-label { font-size: .85rem; color: var(--cp-muted); margin-top: 4px; }

/* ============================================================
   Project cards
   ============================================================ */
.cp-project-card h3 { margin-bottom: 6px; }
.cp-project-card p  { color: var(--cp-muted); font-size: .875rem; }
.cp-project-card small { color: var(--cp-muted); font-size: .75rem; }
.cp-card-actions { display: flex; gap: 8px; margin-top: 12px; }

/* ============================================================
   Assistant cards
   ============================================================ */
.cp-assistant-icon { font-size: 2rem; margin-bottom: 8px; }
.cp-badge {
  display: inline-block;
  background: var(--cp-primary);
  color: #fff;
  font-size: .7rem;
  padding: 1px 6px;
  border-radius: 4px;
  vertical-align: middle;
  margin-left: 4px;
}

/* ============================================================
   Messages (chat)
   ============================================================ */
.cp-msg {
  display: flex;
  flex-direction: column;
  max-width: 80%;
}

.cp-msg-user { align-self: flex-end; align-items: flex-end; }
.cp-msg-assistant, .cp-msg-system { align-self: flex-start; align-items: flex-start; }

.cp-msg-content {
  padding: 10px 14px;
  border-radius: 16px;
  font-size: .9rem;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
}

.cp-msg-user .cp-msg-content {
  background: var(--cp-primary);
  color: #fff;
  border-bottom-right-radius: 4px;
}

.cp-msg-assistant .cp-msg-content {
  background: var(--cp-surface);
  border: 1px solid var(--cp-border);
  border-bottom-left-radius: 4px;
}

.cp-msg-system .cp-msg-content {
  background: #fef9c3;
  border: 1px solid #fde68a;
  font-style: italic;
  font-size: .85rem;
}

.cp-msg-meta { font-size: .72rem; color: var(--cp-muted); margin-top: 3px; padding: 0 4px; }

.cp-save-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: .8rem;
  color: var(--cp-muted);
  padding: 2px 4px;
  margin-top: 2px;
}
.cp-save-btn:hover { color: var(--cp-primary); }

/* ============================================================
   Conversations sidebar
   ============================================================ */
.cp-conv-list { display: flex; flex-direction: column; gap: 4px; margin-top: 8px; overflow-y: auto; flex: 1; }

.cp-conv-item {
  padding: 8px 10px;
  border-radius: 6px;
  cursor: pointer;
  font-size: .85rem;
  color: var(--cp-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: background .12s;
}

.cp-conv-item:hover { background: var(--cp-border); }
.cp-conv-item.active { background: var(--cp-primary); color: #fff; }

/* ============================================================
   Plans & payments
   ============================================================ */
.cp-plan-card {
  background: var(--cp-surface);
  border: 2px solid var(--cp-border);
  border-radius: var(--cp-radius);
  padding: 24px;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.cp-plan-card.cp-plan-popular { border-color: var(--cp-primary); }

.cp-plan-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--cp-primary);
  color: #fff;
  font-size: .75rem;
  padding: 2px 12px;
  border-radius: 12px;
  white-space: nowrap;
}

.cp-plan-price { font-size: 1.5rem; font-weight: 700; color: var(--cp-primary); }
.cp-plan-credits { color: var(--cp-muted); font-size: .875rem; }
.cp-plan-features { display: flex; flex-direction: column; gap: 4px; }
.cp-plan-features li::before { content: '✓ '; color: var(--cp-success); }
.cp-plan-free-note { color: var(--cp-muted); font-size: .85rem; text-align: center; }

.cp-payment-form { margin-top: 24px; }
.cp-payment-info { background: var(--cp-surface); border: 1px solid var(--cp-border); border-radius: var(--cp-radius); padding: 20px; margin-top: 24px; }
.cp-payment-info ol { padding-left: 20px; }
.cp-payment-info li { margin-bottom: 6px; }

/* ============================================================
   Saved responses
   ============================================================ */
.cp-saved-card { display: flex; flex-direction: column; gap: 8px; }
.cp-saved-content { white-space: pre-wrap; font-size: .9rem; line-height: 1.5; }
.cp-saved-meta { font-size: .75rem; color: var(--cp-muted); }

/* ============================================================
   Transactions table
   ============================================================ */
.cp-table { width: 100%; border-collapse: collapse; font-size: .875rem; }
.cp-table th { background: var(--cp-border); padding: 8px 12px; text-align: left; font-weight: 600; }
.cp-table td { padding: 8px 12px; border-bottom: 1px solid var(--cp-border); }
.cp-table tr:hover td { background: var(--cp-surface); }
.cp-pos { color: var(--cp-success); font-weight: 600; }
.cp-neg { color: var(--cp-danger); font-weight: 600; }

/* ============================================================
   Form wrap (for inline create forms)
   ============================================================ */
.cp-form-wrap {
  background: var(--cp-surface);
  border: 1px solid var(--cp-border);
  border-radius: var(--cp-radius);
  padding: 20px;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* ============================================================
   Actions section (dashboard quick links)
   ============================================================ */
.cp-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 24px; }
.cp-actions h3 { width: 100%; margin-bottom: 4px; }

/* ============================================================
   Section
   ============================================================ */
.cp-section { margin-bottom: 24px; }
.cp-section h3 { margin-bottom: 10px; }
.cp-list-item { padding: 8px 12px; border-bottom: 1px solid var(--cp-border); font-size: .875rem; }

/* ============================================================
   Heading
   ============================================================ */
.cp-heading { margin-bottom: 20px; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 640px) {
  .cp-chat-layout { flex-direction: column; }

  .cp-chat-sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--cp-border);
    max-height: 220px;
  }

  .cp-nav {
    gap: 2px;
    padding: 8px;
  }

  .cp-nav-link {
    padding: 5px 8px;
    font-size: .8rem;
  }

  .cp-cards-grid,
  .cp-plans-grid {
    grid-template-columns: 1fr;
  }

  .cp-msg { max-width: 95%; }
}