/* ===== AI COMPANION & MODAL STYLES ===== */

/* ===== AI MODAL DESIGN TOKENS ===== */
:root {
  /* AI Modal Specific Tokens */
  --ai-modal-overlay: rgba(0, 0, 0, 0.4);
  --ai-modal-overlay-blur: 12px;
  --ai-modal-radius: 1.25rem; /* 20px */
  --ai-modal-radius-lg: 1.5rem; /* 24px */
  --ai-modal-max-width: 44rem; /* 704px */
  --ai-modal-min-height: 18.75rem; /* 300px */
  --ai-modal-max-height: 25rem; /* 400px */
  --ai-modal-z-index: var(--z-ai-companion);
  --ai-modal-floating-z-index: var(--z-ai-companion);
  
  /* AI Modal Animations */
  --ai-modal-duration: 0.3s;
  --ai-modal-duration-slow: 0.4s;
  --ai-modal-easing: cubic-bezier(0.16, 1, 0.3, 1);
  --ai-modal-easing-smooth: ease-out;
  
  /* AI Modal Spacing */
  --ai-modal-padding: 1.5rem;
  --ai-modal-padding-lg: 2rem;
  --ai-modal-gap: 0.5rem;
  --ai-modal-gap-lg: 1rem;
  
  /* AI Modal Shadows */
  --ai-modal-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
  --ai-modal-shadow-hover: 0 8px 30px rgba(59, 130, 246, 0.4);
  --ai-modal-shadow-floating: 0 4px 20px rgba(59, 130, 246, 0.3);
  
  /* AI Modal Transforms */
  --ai-modal-scale-hover: 1.1;
  --ai-modal-scale-active: 0.95;
  --ai-modal-translate-y: 1.875rem; /* 30px */
  --ai-modal-scale-initial: 0.95;
  
  /* AI Modal Content Widths */
  --ai-modal-search-max-width: 32rem; /* 512px - optimal width for search input */
}

/* ===== GLOBAL MODAL BASE STYLES ===== */
.study-modal {
  position: fixed;
  inset: 0;
  background: var(--ai-modal-overlay);
  backdrop-filter: blur(var(--ai-modal-overlay-blur));
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--ai-modal-z-index);
  animation: aiModalFadeIn var(--ai-modal-duration) var(--ai-modal-easing-smooth);
}

@keyframes aiModalFadeIn {
  from {
    background: rgba(0, 0, 0, 0);
    backdrop-filter: blur(0px);
  }
  to {
    background: var(--ai-modal-overlay);
    backdrop-filter: blur(var(--ai-modal-overlay-blur));
  }
}

.modal-content {
  background: var(--modal-bg, var(--surface));
  backdrop-filter: none;
  border-radius: var(--ai-modal-radius);
  padding: 0;
  max-width: var(--ai-modal-max-width);
  width: 90%;
  max-height: 85vh;
  box-shadow: var(--ai-modal-shadow);
  border: 1px solid var(--modal-border, var(--border));
  animation: aiModalSlideUp var(--ai-modal-duration-slow) var(--ai-modal-easing);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  margin: auto;
  position: relative;
}

@keyframes aiModalSlideUp {
  from {
    opacity: 0;
    transform: translateY(var(--ai-modal-translate-y)) scale(var(--ai-modal-scale-initial));
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal-header {
  font-size: var(--text-lg, 1.25rem);
  font-weight: 600;
  color: var(--text);
  padding: var(--ai-modal-padding) var(--ai-modal-padding-lg);
  text-align: left;
  background: linear-gradient(135deg, var(--surface-2) 0%, var(--surface-3) 100%);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--ai-modal-gap);
  position: relative;
}

.modal-header i {
  color: var(--primary);
  font-size: 1.125rem;
}

.modal-close {
  position: absolute;
  right: var(--ai-modal-padding);
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: var(--text-lg, 1.25rem);
  padding: var(--ai-modal-gap);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md, 0.5rem);
  transition: all var(--ai-modal-duration) var(--ai-modal-easing-smooth);
  width: 2rem;
  height: 2rem;
}

.modal-close:hover {
  background: var(--surface-3);
  color: var(--text);
}

.modal-close:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.hidden {
  display: none !important;
}

/* Floating AI Assistant Button */
.floating-ai-assistant {
  position: fixed;
  bottom: var(--ai-modal-padding-lg);
  right: var(--ai-modal-padding-lg);
  width: 3.5rem; /* 56px */
  height: 3.5rem; /* 56px */
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-strong) 100%);
  color: var(--text-inverse);
  border: none;
  box-shadow: var(--ai-modal-shadow-floating);
  cursor: pointer;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--ai-modal-duration-slow) var(--ai-modal-easing-smooth);
  z-index: var(--ai-modal-floating-z-index);
}

.floating-ai-assistant:hover {
  transform: scale(var(--ai-modal-scale-hover));
  box-shadow: var(--ai-modal-shadow-hover);
}

.floating-ai-assistant:active {
  transform: scale(var(--ai-modal-scale-active));
}

.floating-ai-assistant:focus-visible {
  outline: 2px solid var(--text-inverse);
  outline-offset: 2px;
}

/* AI Companion Section (for dashboard/index pages) */
.ai-companion-section {
  background: transparent;
  border-radius: 20px;
  padding: 3rem 2rem;
  margin-bottom: 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.ai-companion-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.ai-companion-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  margin: 0;
  color: var(--text, #1e293b);
  line-height: 1.2;
}

/* ===== AI MODAL STYLES (Global - Available on all pages) ===== */

.ai-modal-body {
  padding: var(--ai-modal-padding-lg);
  background: var(--surface-2);
  min-height: var(--ai-modal-min-height);
  max-height: var(--ai-modal-max-height);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.ai-companion-search {
  max-width: 100%;
  width: 100%;
  margin: 0 0 var(--ai-modal-gap-lg);
  display: flex;
  justify-content: center;
}

.search-container {
  position: relative;
  display: flex;
  align-items: center;
  background: var(--surface);
  border-radius: var(--ai-modal-radius-lg);
  border: 2px solid var(--border);
  padding: var(--ai-modal-gap) var(--space-sm, 0.75rem) var(--ai-modal-gap) var(--ai-modal-padding);
  box-shadow: var(--shadow-sm, 0 2px 8px rgba(0, 0, 0, 0.06));
  transition: all var(--ai-modal-duration) var(--ai-modal-easing-smooth);
  max-width: var(--ai-modal-search-max-width);
  width: 100%;
}

.search-container:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-bg);
  background: var(--surface);
}

.search-icon {
  position: relative;
  color: var(--text-subtle);
  margin-right: var(--space-sm, 0.75rem);
  font-size: var(--text-base, 1rem);
}

.search-sparkle {
  position: absolute;
  top: -0.125rem; /* -2px */
  right: -0.125rem; /* -2px */
  font-size: 0.6rem;
  color: var(--primary);
  animation: aiSparkle 2s infinite;
}

@keyframes aiSparkle {
  0%, 100% { 
    opacity: 0.3; 
    transform: scale(1); 
  }
  50% { 
    opacity: 1; 
    transform: scale(1.2); 
  }
}

.search-input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-size: var(--text-sm, 0.938rem);
  color: var(--text);
  font-family: inherit;
  padding: var(--ai-modal-gap) 0;
}

.search-input::placeholder {
  color: var(--input-placeholder);
}

.search-input:focus {
  outline: none;
  border: none;
  box-shadow: none;
}

.search-submit {
  width: 2.375rem; /* 38px */
  height: 2.375rem; /* 38px */
  min-width: 2.375rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-strong) 100%);
  border: none;
  color: var(--text-inverse);
  cursor: pointer;
  transition: all var(--ai-modal-duration) var(--ai-modal-easing-smooth);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm, 0.875rem);
}

.search-submit:hover {
  transform: scale(var(--ai-modal-scale-hover));
  box-shadow: 0 4px 12px var(--primary-bg);
}

.search-submit:active {
  transform: scale(var(--ai-modal-scale-active));
}

.search-submit:focus-visible {
  outline: 2px solid var(--text-inverse);
  outline-offset: 2px;
}

.ai-companion-output {
  max-width: 100%;
  width: 100%;
  margin: 0;
  background: transparent;
  border-radius: 0;
  padding: 0;
  box-shadow: none;
  border: none;
  animation: aiSlideUp var(--ai-modal-duration-slow) var(--ai-modal-easing-smooth);
  display: flex;
  flex-direction: column;
  align-items: center;
}

@keyframes aiSlideUp {
  from {
    opacity: 0;
    transform: translateY(0.625rem); /* 10px */
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.ai-thinking {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm, 0.75rem);
  padding: var(--ai-modal-gap-lg) var(--ai-modal-padding);
  background: var(--surface);
  border-radius: 1.125rem; /* 18px */
  box-shadow: var(--shadow-sm, 0 2px 8px rgba(0, 0, 0, 0.08));
  color: var(--text-muted);
  font-size: var(--text-sm, 0.875rem);
  max-width: var(--ai-modal-search-max-width);
  width: 100%;
}

.thinking-dots {
  display: flex;
  gap: 0.25rem;
}

.thinking-dots span {
  width: 0.5rem; /* 8px */
  height: 0.5rem; /* 8px */
  border-radius: 50%;
  background: var(--primary);
  animation: aiThinking 1.4s infinite ease-in-out;
}

.thinking-dots span:nth-child(1) { 
  animation-delay: -0.32s; 
}

.thinking-dots span:nth-child(2) { 
  animation-delay: -0.16s; 
}

@keyframes aiThinking {
  0%, 80%, 100% {
    transform: scale(0.8);
    opacity: 0.5;
  }
  40% {
    transform: scale(1);
    opacity: 1;
  }
}

.thinking-text {
  font-style: italic;
  color: var(--text-muted);
}

.ai-response {
  padding: var(--ai-modal-gap-lg) var(--ai-modal-padding);
  background: var(--surface);
  border-radius: 1.125rem; /* 18px */
  box-shadow: var(--shadow-sm, 0 2px 8px rgba(0, 0, 0, 0.08));
  color: var(--text);
  line-height: 1.7;
  font-size: var(--text-sm, 0.938rem);
  margin-top: var(--ai-modal-gap-lg);
  max-width: var(--ai-modal-search-max-width);
  width: 100%;
  text-align: left; /* Keep text left-aligned for readability */
}

.ai-response p {
  margin-bottom: var(--space-sm, 0.75rem);
}

.ai-response ul {
  margin-left: var(--ai-modal-padding);
  margin-top: var(--ai-modal-gap);
}

.ai-response li {
  margin-bottom: var(--ai-modal-gap);
}

/* AI Notification */
.ai-notification {
  position: fixed;
  top: var(--ai-modal-padding-lg);
  right: var(--ai-modal-padding-lg);
  background: var(--surface);
  border-radius: var(--radius-lg, 0.75rem);
  box-shadow: var(--shadow-lg, 0 8px 32px rgba(0, 0, 0, 0.1));
  padding: var(--ai-modal-gap-lg) var(--ai-modal-padding);
  z-index: var(--z-ai-companion);
  transform: translateX(100%);
  transition: transform var(--ai-modal-duration) var(--ai-modal-easing-smooth);
  border-left: 4px solid var(--success);
}

.ai-notification.show {
  transform: translateX(0);
}

.ai-notification-content {
  display: flex;
  align-items: center;
  gap: var(--space-sm, 0.75rem);
}

.ai-notification-content i {
  font-size: var(--text-lg, 1.25rem);
  color: var(--success);
}

/* ===== DARK MODE SUPPORT ===== */
[data-theme="dark"] {
  --ai-modal-overlay: rgba(0, 0, 0, 0.6);
  --ai-modal-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  --ai-modal-shadow-hover: 0 8px 30px rgba(59, 130, 246, 0.5);
  --ai-modal-shadow-floating: 0 4px 20px rgba(59, 130, 246, 0.4);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
  :root {
    --ai-modal-padding: 1rem;
    --ai-modal-padding-lg: 1.5rem;
    --ai-modal-max-width: 95vw;
  }
  
  .ai-companion-section {
    padding: var(--ai-modal-padding-lg) var(--ai-modal-padding);
    margin-bottom: var(--ai-modal-padding);
  }
  
  .ai-companion-header {
    flex-direction: column;
    gap: var(--ai-modal-gap-lg);
    margin-bottom: var(--ai-modal-padding);
  }
  
  .search-container {
    padding: var(--ai-modal-gap) var(--space-sm, 0.75rem);
  }
  
  .ai-modal-body {
    padding: var(--ai-modal-padding) var(--ai-modal-gap);
  }
  
  .ai-response {
    padding: var(--space-sm, 0.875rem) var(--ai-modal-gap);
    font-size: var(--text-sm, 0.875rem);
  }
  
  .modal-content {
    width: 95%;
    max-height: 90vh;
  }
  
  .floating-ai-assistant {
    bottom: var(--ai-modal-padding);
    right: var(--ai-modal-padding);
    width: 3rem; /* 48px */
    height: 3rem; /* 48px */
    font-size: 1.25rem;
  }
}

@media (max-width: 480px) {
  :root {
    --ai-modal-search-max-width: 24rem; /* Even smaller on very small screens */
  }
  
  .modal-header {
    padding: var(--ai-modal-padding) var(--ai-modal-gap);
    font-size: var(--text-base, 1rem);
  }
  
  .modal-close {
    right: var(--ai-modal-gap);
    width: 1.75rem;
    height: 1.75rem;
    font-size: var(--text-base, 1rem);
  }
  
  .search-submit {
    width: 2rem; /* 32px */
    height: 2rem; /* 32px */
    min-width: 2rem;
  }
}

/* ===== AI RIGHT SIDEBAR STYLES ===== */

/* Main Sidebar Container */
.ai-right-sidebar {
  position: fixed;
  top: 60px; /* Below navbar */
  right: 0;
  height: calc(100vh - 60px);
  width: var(--ai-right-sidebar-width);
  background: var(--surface);
  border-left: 1px solid var(--border);
  box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
  z-index: var(--z-sidebar);
  transform: translateX(100%);
  transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

/* Open state */
body.ai-right-sidebar-open .ai-right-sidebar {
  transform: translateX(0);
}

/* Sidebar Content Wrapper */
.ai-right-sidebar-content {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

/* Sidebar Header */
.ai-right-sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.ai-right-sidebar-header h2 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text);
  margin: 0;
}

.ai-sidebar-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 0.5rem;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
}

.ai-sidebar-close:hover {
  background: var(--surface-3);
  color: var(--text);
}

.ai-sidebar-close:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Section Headers */
.ai-section-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-strong);
  flex-shrink: 0;
}

.ai-section-header i {
  color: var(--primary);
  font-size: 0.875rem;
}

.ai-section-header h3 {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 600;
}

/* Top Section: Needs More Info */
.ai-right-sidebar-top {
  flex: 0 0 35%;
  display: flex;
  flex-direction: column;
  border-bottom: 2px solid var(--border);
  overflow: hidden;
  background: var(--bg);
}

.ai-needs-info-list {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
}

/* Empty state */
.ai-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-muted);
  text-align: center;
  padding: 2rem 1rem;
}

.ai-empty-state i {
  font-size: 2.5rem;
  color: var(--success);
  margin-bottom: 0.75rem;
  opacity: 0.6;
}

.ai-empty-state p {
  margin: 0;
  font-size: 0.875rem;
}

/* Bottom Section: AI Chat */
.ai-right-sidebar-bottom {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--surface);
}

.ai-context-panel {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1rem;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.ai-context-row {
  display: flex;
  gap: 0.75rem;
  align-items: flex-end;
}

.ai-context-field,
.ai-topic-select {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex: 1;
}

.ai-context-field label,
.ai-topic-select label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.ai-topic-selectors {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.5rem;
}

.ai-context-select {
  width: 100%;
  padding: 0.55rem 0.75rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 0.85rem;
}

.ai-context-select:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 0 2px var(--primary-bg);
}

.ai-context-select:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.ai-context-summary {
  padding: 0.75rem;
  border-radius: 0.75rem;
  background: var(--surface-2);
  border: 1px dashed var(--border);
  font-size: 0.8rem;
  color: var(--text);
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
}

.ai-context-summary i {
  color: var(--primary);
}

.ai-context-empty {
  color: var(--text-muted);
  font-style: italic;
}

.ai-context-clear {
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.75rem;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: 0.4rem;
  transition: color 0.2s ease, background 0.2s ease;
}

.ai-context-clear:hover:not(:disabled) {
  color: var(--primary);
  background: var(--surface-2);
}

.ai-context-clear:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

/* Chat Messages Area */
.ai-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-height: 0;
}

/* Chat Message Bubbles */
.ai-message {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  max-width: 85%;
  animation: messageSlideIn 0.3s ease-out;
}

@keyframes messageSlideIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.ai-message.user {
  align-self: flex-end;
}

.ai-message.assistant {
  align-self: flex-start;
}

.ai-message-bubble {
  padding: 0.75rem 1rem;
  border-radius: 1rem;
  font-size: 0.875rem;
  line-height: 1.5;
  white-space: pre-wrap;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.ai-message.user .ai-message-bubble {
  background: var(--primary);
  color: var(--text-inverse);
  border-bottom-right-radius: 0.25rem;
}

.ai-message.assistant .ai-message-bubble {
  background: var(--surface-2);
  color: var(--text);
  border-bottom-left-radius: 0.25rem;
  border: 1px solid var(--border);
}

/* Thinking indicator */
.ai-message.assistant.thinking .ai-message-bubble {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
}

.ai-thinking-dots {
  display: flex;
  gap: 0.25rem;
}

.ai-thinking-dots span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-muted);
  animation: thinkingDot 1.4s infinite ease-in-out;
}

.ai-thinking-dots span:nth-child(1) {
  animation-delay: 0s;
}

.ai-thinking-dots span:nth-child(2) {
  animation-delay: 0.2s;
}

.ai-thinking-dots span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes thinkingDot {
  0%, 60%, 100% {
    transform: scale(1);
    opacity: 0.4;
  }
  30% {
    transform: scale(1.3);
    opacity: 1;
  }
}

/* Chat Input Container */
.ai-chat-input-section {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1rem 1.25rem;
  background: var(--surface-2);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.ai-chat-limit-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.ai-chat-input-controls {
  display: flex;
  gap: 0.5rem;
  align-items: flex-end;
}

.ai-chat-input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  background: var(--surface);
  color: var(--text);
  font-size: 0.875rem;
  font-family: 'Poppins', sans-serif;
  line-height: 1.4;
  min-height: calc(1.4em + 1.5rem);
  max-height: calc(3 * 1.4em + 1.5rem);
  overflow-y: auto;
  overflow-x: hidden;
  resize: none;
  white-space: pre-wrap;
  word-wrap: break-word;
  scroll-behavior: smooth;
  transition: all 0.2s ease;
  outline: none;
}

.ai-chat-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-bg);
}

.ai-chat-input::placeholder {
  color: var(--text-muted);
}

.ai-chat-send {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  background: var(--primary);
  color: var(--text-inverse);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.ai-chat-send:hover {
  background: var(--primary-strong);
  transform: scale(1.05);
}

.ai-chat-send:active {
  transform: scale(0.95);
}

.ai-chat-send:disabled {
  background: var(--border);
  cursor: not-allowed;
  transform: none;
}

.ai-chat-send:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Scrollbar Styling */
.ai-needs-info-list::-webkit-scrollbar,
.ai-chat-messages::-webkit-scrollbar {
  width: 6px;
}

.ai-needs-info-list::-webkit-scrollbar-track,
.ai-chat-messages::-webkit-scrollbar-track {
  background: transparent;
}

.ai-needs-info-list::-webkit-scrollbar-thumb,
.ai-chat-messages::-webkit-scrollbar-thumb {
  background: var(--border-2);
  border-radius: 3px;
}

.ai-needs-info-list::-webkit-scrollbar-thumb:hover,
.ai-chat-messages::-webkit-scrollbar-thumb:hover {
  background: var(--border-3);
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .ai-right-sidebar {
    width: 100vw;
    top: 0;
    height: 100vh;
    border-left: none;
  }
  
  .ai-right-sidebar-header {
    padding-top: calc(1rem + env(safe-area-inset-top));
  }
  
  .ai-right-sidebar-top {
    flex: 0 0 30%;
  }
  
  .ai-message {
    max-width: 90%;
  }
}

/* Dark mode adjustments */
[data-theme="dark"] .ai-right-sidebar {
  box-shadow: -4px 0 20px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .ai-message.assistant .ai-message-bubble {
  background: var(--surface-3);
}

/* ===== AI Action Card ===== */
.ai-action-card p {
  margin: 0 0 0.75rem 0;
}

.ai-action-buttons {
  display: flex;
  gap: 0.5rem;
}

.ai-action-btn {
  padding: 0.375rem 0.875rem;
  border-radius: 0.375rem;
  border: 1px solid var(--border-1, #d0d0d0);
  background: var(--surface-1, #fff);
  color: var(--text-1, #1a1a1a);
  font-size: 0.8125rem;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.ai-action-btn:hover {
  background: var(--surface-2, #f5f5f5);
}

.ai-action-btn.ai-action-yes {
  background: var(--primary, #2563eb);
  color: #fff;
  border-color: var(--primary, #2563eb);
}

.ai-action-btn.ai-action-yes:hover {
  opacity: 0.9;
}

/* ===== AI Toast Notification ===== */
.ai-toast-notification {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(1rem);
  background: var(--surface-1, #1a1a1a);
  color: var(--text-inverse, #fff);
  padding: 0.625rem 1.25rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  opacity: 0;
  transition: opacity 0.3s, transform 0.3s;
  z-index: var(--z-toast);
  pointer-events: none;
}

.ai-toast-notification.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}