/* SpoX+AI — Custom CSS */
/* Tailwind handles most styling; this adds custom tokens and animations */

:root {
  --sidebar-width: 168px;
  --sidebar-bg: #1f1f1f;
  --main-bg: #2a2a2a;
  --input-bg: #1f1f1f;
  --border: #3a3a3a;
  --text-primary: #ffffff;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --accent: #ffffff;
  --user-bubble: #3a3a3a;
  --bot-bubble: #252525;
  --card-bg: #2f2f2f;
  --card-hover: #363636;
  --active-item: #333333;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
  background: var(--main-bg);
  color: var(--text-primary);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  overflow: hidden;
  /* Fix for iOS zoom: all inputs must be at least 16px */
  -webkit-text-size-adjust: 100%;
}

input,
textarea,
select {
  font-size: 16px !important;
}

/* ─── Scrollbar ─────────────────────────────────────────────────────────── */
::-webkit-scrollbar {
  width: 4px;
  height: 4px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: #444;
  border-radius: 2px;
}

::-webkit-scrollbar-thumb:hover {
  background: #555;
}

/* ─── Layout ────────────────────────────────────────────────────────────── */
#app {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ─── Sidebar ───────────────────────────────────────────────────────────── */
#sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-right: 1px solid var(--border);
  z-index: 10;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 12px 12px;
  font-weight: 600;
  font-size: 15px;
  color: var(--text-primary);
  cursor: pointer;
}

.sidebar-logo img {
  width: 28px;
  height: 28px;
}

.sidebar-nav {
  padding: 4px 0;
  /* Horizontal padding moved to items */
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 13px;
  border: none;
  background: none;
  width: auto;
  margin: 1px 8px;
  text-align: left;
}

.sidebar-btn:hover {
  background: var(--active-item);
  color: var(--text-primary);
}

.sidebar-btn.active {
  background: var(--active-item);
  color: var(--text-primary);
}

.sidebar-section {
  padding: 12px 16px 4px;
  /* Improved alignment with 8px margin of items */
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: none;
  letter-spacing: 0;
}

.sidebar-scroll {
  flex: 1;
  overflow-y: auto;
  padding-bottom: 8px;
}

.sidebar-chat-item,
.sidebar-project-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2px 0;
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: 6px;
  margin: 1px 8px;
  transition: background 0.15s;
  min-height: 28px;
}

.sidebar-chat-item:hover,
.sidebar-project-item:hover {
  background: var(--active-item);
  color: var(--text-primary);
}

.sidebar-chat-item.active,
.sidebar-project-item.active {
  background: var(--active-item);
  color: var(--text-primary);
}

.chat-item-title {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding: 5px 8px 5px 12px;
}

.chat-item-delete,
.project-item-delete {
  display: none;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  margin-right: 7px;
  transition: color 0.15s, background 0.15s;
  align-items: center;
  justify-content: center;
}

.sidebar-chat-item:hover .chat-item-delete,
.sidebar-project-item:hover .project-item-delete {
  display: flex;
}

.chat-item-delete:hover,
.project-item-delete:hover {
  color: #f87171;
  background: #3a1a1a;
}

.project-item-content {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding: 2px 0;
}

/* ─── Main Content ──────────────────────────────────────────────────────── */
#main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--main-bg);
}

/* ─── Header ────────────────────────────────────────────────────────────── */
#header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  min-height: 52px;
  flex-shrink: 0;
}

.header-title {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-title-edit {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 4px;
  transition: background 0.15s;
}

.header-title-edit:hover {
  background: var(--active-item);
}

.project-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11px;
  color: var(--text-secondary);
  font-weight: 500;
  margin-left: 12px;
}

/* ─── Header Actions ─────────────────────────────────────────────────────── */
.header-actions {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
}

.profile-btn {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--active-item);
  color: white;
  font-weight: 600;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: 1px solid var(--border);
  transition: all 0.2s;
  flex-shrink: 0;
}

.profile-btn:hover {
  background: #444;
  border-color: #555;
}

.login-btn {
  background: white;
  color: #111;
  border: none;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  height: 34px;
}

.login-btn:hover {
  background: #e5e5e5;
  transform: translateY(-1px);
}

/* ─── Profile Dropdown ──────────────────────────────────────────────────── */
.profile-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: #2a2a2a;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px;
  min-width: 220px;
  z-index: 100;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.profile-dropdown-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
}

.profile-dropdown-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #555;
  color: white;
  font-weight: 600;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.profile-dropdown-info {
  flex: 1;
  min-width: 0;
}

.profile-dropdown-name {
  font-weight: 600;
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.profile-dropdown-username {
  font-size: 11px;
  color: var(--text-muted);
}

.profile-dropdown-email {
  font-size: 11px;
  color: var(--text-muted);
  padding: 4px 8px;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 8px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-secondary);
  transition: background 0.15s;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.dropdown-item:hover {
  background: var(--active-item);
  color: var(--text-primary);
}

.dropdown-item.danger {
  color: #f87171;
}

.dropdown-item.danger:hover {
  background: #3a1a1a;
}

/* ─── Chat Area ─────────────────────────────────────────────────────────── */
#chat-area {
  flex: 1;
  overflow-y: auto;
  padding: 0;
  /* Reduced from 20px to prevent unnecessary scroll triggered by padding */
  display: flex;
  flex-direction: column;
  position: relative;
}

/* ─── Empty State / Suggestion Cards ───────────────────────────────────── */
.home-hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 20px;
  /* Reduced from 40px to give more space for textarea expansion */
  animation: fadeIn 0.8s ease-out;
  min-height: 0;
  /* Ensure it can shrink if needed */
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.home-logo-container {
  margin-bottom: 24px;
}

.home-hero-logo {
  width: 64px;
  height: 64px;
  filter: drop-shadow(0 0 15px rgba(255, 255, 255, 0.1));
}

.text-styled {
  color: #994866;
  filter: drop-shadow(0 0 10px rgba(153, 72, 102, 0.3));
}

.home-hero-title {
  font-size: 42px;
  font-weight: 800;
  margin-bottom: 20px;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  line-height: 1.1;
}

/* ─── Nested Project Chats (Sidebar) ─────────────────────────────────────── */
.project-chats-container {
  overflow: hidden;
  transition: max-height 0.3s ease-out;
  margin-left: 12px;
  border-left: 1px solid var(--border);
  padding-left: 4px;
}

.sidebar-project-item.collapsed+.project-chats-container {
  max-height: 0 !important;
}

.sidebar-project-item .project-chevron {
  transition: transform 0.2s;
}

.sidebar-project-item.collapsed .project-chevron {
  transform: rotate(-90deg);
}

.home-hero-subtitle {
  font-size: 17px;
  color: var(--text-secondary);
  margin-bottom: 48px;
  max-width: 540px;
  line-height: 1.6;
}

.suggestions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  max-width: 600px;
  width: 100%;
}

.suggestion-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-primary);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.suggestion-card:hover {
  background: var(--card-hover);
  border-color: #555;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.suggestion-icon {
  font-size: 20px;
  background: rgba(255, 255, 255, 0.05);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  flex-shrink: 0;
}

.suggestion-text {
  font-weight: 500;
  line-height: 1.4;
  color: var(--text-primary);
}

.suggestion-arrow {
  color: var(--text-muted);
  opacity: 0;
  transform: translateX(-5px);
  transition: all 0.2s;
}

.suggestion-card:hover .suggestion-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* ─── Messages ──────────────────────────────────────────────────────────── */
.messages-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 760px;
  width: 100%;
  margin: 0 auto;
  padding: 24px 20px;
  /* Padding moved here from #chat-area */
}

.message-row {
  display: flex;
  flex-direction: column;
}

.message-row.user {
  align-items: flex-end;
}

.message-row.assistant {
  align-items: flex-start;
}

.message-bubble {
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.6;
  word-break: break-word;
}

.message-bubble.user {
  background: var(--user-bubble);
  color: var(--text-primary);
  border-bottom-right-radius: 4px;
}

.message-bubble.assistant {
  background: transparent;
  color: var(--text-primary);
  border-bottom-left-radius: 4px;
  padding-left: 0;
  width: 100%;
}

/* Attachments inside message bubbles */
.message-attachments {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
  margin-bottom: 4px;
}

.attachment-item {
  position: relative;
  width: 120px;
  height: 90px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--card-bg);
  cursor: pointer;
  transition: transform 0.2s, border-color 0.2s;
}

.attachment-item:hover {
  transform: translateY(-2px);
  border-color: #555;
}

.attachment-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.attachment-file-icon {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 8px;
  color: var(--text-secondary);
}

.attachment-file-name {
  font-size: 10px;
  text-align: center;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Markdown in bot messages */
.message-bubble.assistant strong {
  font-weight: 700;
}

.message-bubble.assistant em {
  font-style: italic;
}

.message-bubble.assistant ul,
.message-bubble.assistant ol {
  padding-left: 1.5em;
  margin: 0.5em 0;
}

.message-bubble.assistant li {
  margin: 0.2em 0;
}

.message-bubble.assistant code {
  background: #333;
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 12px;
  font-family: monospace;
}

.message-bubble.assistant pre {
  background: #1a1a1a;
  border: 1px solid #333;
  border-radius: 6px;
  padding: 12px;
  overflow-x: auto;
  margin: 8px 0;
}

.message-bubble.assistant pre code {
  background: none;
  padding: 0;
}

.message-bubble.assistant h1,
.message-bubble.assistant h2,
.message-bubble.assistant h3,
.message-bubble.assistant h4,
.message-bubble.assistant h5,
.message-bubble.assistant h6 {
  font-weight: 700;
  margin: 0.5em 0 0.15em;
}

.message-bubble.assistant h1 {
  font-size: 1.3em;
}

.message-bubble.assistant h2 {
  font-size: 1.15em;
}

.message-bubble.assistant h3 {
  font-size: 1.05em;
}

.message-bubble.assistant h4,
.message-bubble.assistant h5,
.message-bubble.assistant h6 {
  font-size: 1em;
}

.message-bubble.assistant p {
  margin: 0.2em 0;
}

/* Tables in bot messages */
.message-bubble.assistant table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 13px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 8px;
  overflow: hidden;
}

.message-bubble.assistant th,
.message-bubble.assistant td {
  padding: 10px 12px;
  border: 1px solid var(--border);
  text-align: left;
}

.message-bubble.assistant th {
  background: rgba(255, 255, 255, 0.05);
  font-weight: 600;
  color: var(--text-secondary);
}

.message-bubble.assistant tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

/* Bot action icons */
.message-actions {
  display: flex;
  gap: 8px;
  margin-top: 6px;
  padding-left: 0;
}

.action-icon {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  transition: color 0.15s, background 0.15s;
  display: flex;
  align-items: center;
}

.action-icon:hover {
  color: var(--text-primary);
  background: var(--active-item);
}

/* Typing indicator */
.typing-indicator {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 0;
  color: var(--text-muted);
  font-size: 13px;
}

.typing-dots {
  display: flex;
  gap: 3px;
}

.typing-dot {
  width: 6px;
  height: 6px;
  background: var(--text-muted);
  border-radius: 50%;
  animation: bounce 1.2s infinite;
}

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

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

@keyframes bounce {

  0%,
  80%,
  100% {
    transform: translateY(0);
  }

  40% {
    transform: translateY(-6px);
  }
}

/* ─── Input Bar ─────────────────────────────────────────────────────────── */
#input-area {
  padding: 12px 20px 16px;
  flex-shrink: 0;
}

.input-bar {
  display: flex;
  align-items: flex-end;
  /* Back to flex-end to keep buttons at bottom on multi-line */
  gap: 12px;
  background: #252525;
  border: 1px solid #333;
  border-radius: 16px;
  padding: 8px 12px;
  max-width: 100%;
  width: 760px;
  margin: 0 auto;
  transition: all 0.2s ease;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.input-bar .input-attach-btn {
  margin-bottom: 3px;
}

.input-bar .send-btn {
  margin-bottom: 4px;
}

.input-bar:focus-within {
  border-color: #444;
  background: #2a2a2a;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.input-attach-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background 0.15s, color 0.15s;
  flex-shrink: 0;
}

.input-attach-btn:hover {
  background: var(--active-item);
  color: var(--text-primary);
}

#message-input {
  flex: 1;
  background: none;
  min-height: 24px;
  max-height: 200px;
  line-height: 1.5;
  font-family: inherit;
  margin-bottom: 6px;
  outline: none !important;
  resize: none;
}

/* ─── Modern Modal V2 ───────────────────────────────────────────────────── */
/* ─── Modern Modal System ───────────────────────────────────────────────── */
.modal,
.modal-v2,
.modal-v3 {
  background: rgba(37, 37, 37, 0.95);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  width: 100%;
  max-width: 420px;
  padding: 32px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
  animation: modalScale 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modalScale {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(10px);
  }

  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-title,
.modal-title-v2 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 24px;
  color: #fff;
  letter-spacing: -0.02em;
}

.modal-input,
.modal-input-v2 {
  width: 100%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 14px 16px;
  color: #fff;
  font-size: 15px;
  outline: none !important;
  transition: all 0.2s ease;
}

.modal-input:focus,
.modal-input-v2:focus {
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.06);
  box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.03);
}

.modal-input::placeholder,
.modal-input-v2::placeholder {
  color: rgba(255, 255, 255, 0.3);
}

.modal-footer-v2,
.modal-footer-v3 {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 32px;
}

.modal-cancel-btn-v2,
.modal-cancel-btn-v3 {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-secondary);
  font-weight: 600;
  cursor: pointer;
  padding: 12px 20px;
  border-radius: 12px;
  transition: all 0.2s;
  font-size: 14px;
}

.modal-cancel-btn-v2:hover,
.modal-cancel-btn-v3:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.modal-submit-btn-v2,
.modal-submit-btn-v3 {
  background: #fff;
  color: #000;
  border: none;
  font-weight: 700;
  cursor: pointer;
  padding: 12px 28px;
  border-radius: 12px;
  transition: all 0.2s;
  font-size: 14px;
}

.modal-submit-btn-v2:hover,
.modal-submit-btn-v3:hover {
  background: #f3f4f6;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255, 255, 255, 0.2);
}

/* ─── Projects Improvements ─────────────────────────────────────────────── */
.project-header {
  padding: 32px 24px 16px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.project-header h1 {
  font-size: 24px;
  font-weight: 700;
  flex: 1;
}

.project-section-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 24px 24px 12px;
}

.file-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 0 24px;
  margin-bottom: 24px;
}

.file-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #252525;
  border: 1px solid var(--border);
  padding: 10px 14px;
  border-radius: 12px;
  transition: border-color 0.2s;
}

.file-item:hover {
  border-color: #444;
}

.file-info {
  flex: 1;
  min-width: 0;
}

.file-name {
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-meta {
  font-size: 11px;
  color: var(--text-muted);
}

.file-thumbnail {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: cover;
  flex-shrink: 0;
  border: 1px solid var(--border);
  background: var(--active-item);
}

.file-icon-placeholder {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 8px;
  color: var(--text-secondary);
  flex-shrink: 0;
  border: 1px solid var(--border);
}

.file-delete-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 6px;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.2s;
}

.file-delete-btn:hover {
  color: #f87171;
  background: rgba(248, 113, 113, 0.1);
}

.new-chat-project-btn {
  background: #fff;
  color: #000;
  border: none;
  border-radius: 12px;
  padding: 14px 20px;
  font-weight: 600;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: 0 24px 24px;
  cursor: pointer;
  transition: transform 0.2s, background 0.2s;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.new-chat-project-btn:hover {
  background: #e5e5e5;
  transform: translateY(-1px);
}

#message-input::placeholder {
  color: var(--text-muted);
}

.send-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: white;
  border: none;
  color: #111;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.15s, opacity 0.15s;
}

.send-btn.stop-mode {
  background: #f87171;
  color: white;
  opacity: 1 !important;
}

.send-btn.stop-mode:hover {
  background: #ef4444;
}

.send-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.send-btn:not(:disabled):hover {
  background: #e5e5e5;
}

/* ─── Footer ────────────────────────────────────────────────────────────── */
#footer {
  padding: 24px;
  text-align: center;
  font-size: 13px;
  color: var(--text-secondary);
  border-top: 1px solid var(--border-color);
  line-height: 1.6;
}

.footer-links {
  margin: 8px 0;
  display: flex;
  justify-content: center;
  gap: 12px;
  opacity: 0.8;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s, opacity 0.2s;
}

.footer-links a:hover {
  color: var(--accent);
  text-decoration: underline;
  opacity: 1;
}

/* ─── Project View ──────────────────────────────────────────────────────── */
.project-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 24px 24px 16px;
  border-bottom: 1px solid var(--border);
}

.project-header h1 {
  font-size: 22px;
  font-weight: 600;
  flex: 1;
}

.add-files-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
  transition: background 0.15s, color 0.15s;
}

.add-files-btn:hover {
  background: var(--active-item);
  color: var(--text-primary);
}

.new-chat-project-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 10px 16px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 13px;
  width: 100%;
  transition: background 0.15s, color 0.15s;
  margin: 16px 24px;
  width: calc(100% - 48px);
}

.new-chat-project-btn:hover {
  background: var(--card-hover);
  color: var(--text-primary);
}

.project-chat-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.15s;
}

.project-chat-item:hover {
  background: var(--active-item);
}

.project-chat-title {
  font-size: 14px;
  font-weight: 500;
}

.project-chat-subtitle {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

.project-chat-date {
  font-size: 12px;
  color: var(--text-muted);
  flex-shrink: 0;
}

/* ─── Modal ─────────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(4px);
}

.modal {
  background: #2a2a2a;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  max-width: 380px;
  width: 90%;
  text-align: center;
}

.modal-logo {
  margin: 0 auto 16px;
  width: 56px;
  height: 56px;
}

.modal h2 {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}

.modal h1 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}

.modal p {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
  line-height: 1.5;
}

.modal-actions-v2 {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: 100%;
}

.modal-or-v2 {
  color: var(--text-muted);
  font-size: 13px;
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.modal-or-v2::before,
.modal-or-v2::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.modal-guest-link {
  color: var(--text-muted);
  font-size: 13px;
  cursor: pointer;
  transition: color 0.15s;
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* Modal v2 & v3 (Consolidated with main system) */
.modal-body-v2 {
  margin-bottom: 24px;
}

/* ─── Cookie Banner ─────────────────────────────────────────────────────── */
#cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #1a1a1a;
  border-top: 1px solid var(--border);
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 500;
  font-size: 12px;
  color: var(--text-secondary);
}

#cookie-banner a {
  color: #60a5fa;
  text-decoration: none;
}

#cookie-banner a:hover {
  text-decoration: underline;
}

.cookie-ok-btn {
  background: white;
  color: #111;
  border: none;
  padding: 6px 16px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  flex-shrink: 0;
}

/* ─── Search Bar ────────────────────────────────────────────────────────── */
.search-input {
  width: calc(100% - 16px);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  padding: 8px 12px;
  color: var(--text-primary);
  font-size: 13px;
  outline: none !important;
  margin: 4px 8px;
  transition: all 0.2s ease;
}

.search-input:focus {
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.06);
  box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.02);
}

.search-input::placeholder {
  color: rgba(255, 255, 255, 0.3);
}

/* ─── Settings View ─────────────────────────────────────────────────────── */
.settings-section {
  max-width: 600px;
  margin: 0 auto;
  padding: 24px;
}

.settings-section h2 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
}

.settings-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.settings-item-label {
  color: var(--text-secondary);
  font-size: 12px;
  margin-top: 2px;
}

.danger-btn {
  background: none;
  border: 1px solid #f87171;
  color: #f87171;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.15s;
}

.danger-btn:hover {
  background: #3a1a1a;
}

/* ─── Responsive ────────────────────────────────────────────────────────── */


.retry-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: #7f1d1d;
  color: #fecaca;
  border: none;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 10px;
  transition: background 0.15s;
}

.retry-btn:hover {
  background: #991b1b;
}

.retry-btn svg {
  flex-shrink: 0;
}

/* ─── Premium Error State ───────────────────────────────────────────────── */
.error-bubble-v2 {
  background: rgba(45, 20, 20, 0.4);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(248, 113, 113, 0.2);
  border-radius: 12px;
  padding: 16px 20px;
  max-width: 600px;
  margin: 12px 0;
  animation: errorSlideIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

@keyframes errorSlideIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.error-title {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #f87171;
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 6px;
}

.error-text {
  color: #e5e7eb;
  font-size: 13px;
  line-height: 1.5;
  margin-bottom: 16px;
}

.retry-btn-v2 {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(248, 113, 113, 0.1);
  border: 1px solid rgba(248, 113, 113, 0.3);
  color: #f87171;
  padding: 7px 16px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.retry-btn-v2:hover {
  background: rgba(248, 113, 113, 0.2);
  border-color: rgba(248, 113, 113, 0.5);
  transform: translateY(-1px);
}

.retry-btn-v2:active {
  transform: translateY(0);
}

/* ─── Upload Previews ───────────────────────────────────────────────────── */
.upload-preview-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  max-width: 760px;
  margin: 0 auto 12px;
  padding: 0 4px;
}

.preview-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 6px 12px;
  padding-right: 30px;
  font-size: 13px;
  color: var(--text-primary);
  max-width: 200px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.preview-item:hover {
  background: var(--card-hover);
  border-color: #555;
}

.preview-thumb {
  width: 24px;
  height: 24px;
  border-radius: 4px;
  object-fit: cover;
  background: var(--active-item);
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.preview-remove {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  display: flex;
  align-items: center;
  transition: color 0.15s;
}

.preview-remove:hover {
  color: #f87171;
}

/* ─── Preview Modal ─────────────────────────────────────────────────────── */
.preview-modal {
  background: #1a1a1a;
  border: 1px solid var(--border);
  border-radius: 16px;
  width: 90%;
  max-width: 900px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.preview-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: #252525;
}

.preview-modal-header span {
  font-weight: 600;
  font-size: 15px;
}

.preview-close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
  transition: all 0.15s;
}

.preview-close-btn:hover {
  background: var(--active-item);
  color: var(--text-primary);
}

.preview-modal-content {
  flex: 1;
  overflow: auto;
  display: flex;
  align-items: flex-start;
  /* Fixed: ensure images start at top */
  justify-content: center;
  padding: 24px;
  background: #111;
  min-height: 300px;
}

.preview-modal-content img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.preview-modal-content iframe {
  width: 100%;
  height: 70vh;
  border: none;
  background: white;
  border-radius: 4px;
}

.preview-text-content {
  width: 100%;
  background: #1a1a1a;
  color: #e5e7eb;
  padding: 20px;
  border-radius: 8px;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 13px;
  line-height: 1.6;
  white-space: pre-wrap;
  border: 1px solid var(--border);
}

/* ─── Upload Progress Bar ───────────────────────────────────────────────── */
.upload-progress-container {
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  padding: 0 20px;
  display: none;
  flex-direction: column;
  gap: 6px;
  flex-shrink: 0;
}

.upload-progress-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  color: var(--text-secondary);
}

.upload-progress-bg {
  width: 100%;
  height: 4px;
  background: var(--active-item);
  border-radius: 2px;
  overflow: hidden;
}

.upload-progress-fill {
  height: 100%;
  background: #fff;
  width: 0%;
  transition: width 0.1s ease;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

.project-upload-progress {
  padding: 0 24px;
  margin-bottom: 24px;
  display: none;
}

/* ─── Custom UI System (v3) ────────────────────────────────────────────── */
.modal-v3 {
  background: rgba(30, 30, 30, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 32px;
  max-width: 420px;
  width: 90%;
  text-align: center;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  animation: modalScaleUp 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modalScaleUp {
  from {
    opacity: 0;
    transform: scale(0.9);
  }

  to {
    opacity: 1;
    transform: scale(1);
  }
}

.modal-v3 h2 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.modal-v3 p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 32px;
}

.modal-footer-v3 {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.modal-submit-btn-v3,
.modal-cancel-btn-v3,
.modal-login-btn {
  padding: 12px 24px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  flex: 1;
}

.modal-submit-btn-v3,
.modal-login-btn {
  background: white;
  color: black;
}

.modal-submit-btn-v3:hover,
.modal-login-btn:hover {
  background: #eee;
  transform: translateY(-1px);
}

.modal-cancel-btn-v3 {
  background: rgba(255, 255, 255, 0.05);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-cancel-btn-v3:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* Toasts */
#toast-container {
  position: fixed;
  bottom: 32px;
  right: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 3000;
}

.toast {
  background: rgba(30, 30, 30, 0.9);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: white;
  padding: 12px 20px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 500;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 200px;
  max-width: 350px;
  animation: toastSlideIn 0.3s cubic-bezier(0, 0.5, 0.5, 1);
}

@keyframes toastSlideIn {
  from {
    opacity: 0;
    transform: translateX(50px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.toast.error {
  border-color: rgba(248, 113, 113, 0.3);
}

.toast.success {
  border-color: rgba(52, 211, 153, 0.3);
}

/* ─── Mobile Responsiveness ────────────────────────────────────────────── */

/* Default: Hide mobile elements on desktop */
.mobile-only-btn {
  display: none;
}

.sidebar-overlay {
  display: none;
}

@media (max-width: 768px) {
  :root {
    --sidebar-width: 260px;
    /* Wider sidebar on mobile for better reach */
  }

  /* Hamburger Menu */
  .mobile-only-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--text-primary);
    padding: 8px;
    margin-right: 8px;
    cursor: pointer;
    border-radius: 8px;
    transition: background 0.2s;
  }

  .mobile-only-btn:hover {
    background: var(--active-item);
  }

  /* Layout Adjustments */
  #sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
  }

  #sidebar.open {
    transform: translateX(0);
  }

  .sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease;
  }

  .sidebar-overlay.open {
    display: block;
    opacity: 1;
  }

  /* Header adjustments */
  #header {
    padding: 8px 12px;
  }

  .header-left {
    display: flex;
    align-items: center;
  }

  .header-title {
    font-size: 14px;
    gap: 4px;
  }

  .project-badge {
    margin-left: 8px;
    padding: 2px 8px;
    font-size: 10px;
  }

  /* Chat area adjustments */
  #chat-area {
    padding: 12px !important;
  }

  .message {
    max-width: 90%;
    margin-bottom: 12px;
  }

  .message-content {
    padding: 10px 14px;
    font-size: 13.5px;
  }

  /* Input area adjustments */
  .input-bar {
    margin: 8px 0 12px;
    padding: 6px 10px;
    gap: 8px;
    width: 100%;
  }

  #message-input {
    font-size: 16px !important;
    margin-bottom: 4px;
  }

  .input-bar .input-attach-btn,
  .input-bar .send-btn {
    margin-bottom: 0;
  }

  .input-actions {
    gap: 4px;
  }

  .icon-btn {
    padding: 6px;
  }

  /* Suggestion cards */
  .suggestions-grid {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 0 12px;
  }

  /* Home Hero Refinements */
  .home-hero {
    justify-content: flex-start !important;
    padding-top: 60px !important;
    padding-bottom: 60px !important;
    height: auto !important;
    min-height: 100% !important;
    flex: 1 0 auto !important;
  }

  .home-hero-title {
    font-size: 28px;
    padding: 0 16px;
    margin-bottom: 12px;
  }

  /* Make suggestion cards scrollable horizontally on mobile */
  .suggestions-grid {
    display: flex !important;
    grid-template-columns: none !important;
    overflow-x: auto;
    width: 100vw;
    padding: 10px 20px;
    gap: 12px;
    scrollbar-width: none;
    -ms-overflow-style: none;
    mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
  }

  .suggestions-grid::-webkit-scrollbar {
    display: none;
  }

  .suggestion-card {
    flex: 0 0 240px;
    margin-bottom: 0;
  }

  .home-hero {
    overflow: hidden;
    height: 100%;
    justify-content: center !important;
    padding: 20px 0 !important;
  }

  .home-hero-subtitle {
    font-size: 14px;
    margin-bottom: 32px;
    padding: 0 20px;
  }

  .home-hero-logo {
    width: 48px;
    height: 48px;
  }

  /* Message Bubble Refinements */
  .message-bubble {
    font-size: 14px;
    padding: 10px 14px;
  }

  .attachment-item {
    max-width: 100% !important;
  }

  /* Project View */
  .project-header {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
    padding: 20px 16px;
  }

  .project-header h1 {
    margin: 0;
    flex: 1;
  }

  .project-header .add-files-btn {
    width: 100%;
    margin-top: 8px;
  }

  .project-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .file-list {
    padding: 0 16px;
  }

  .project-chat-item {
    padding: 12px 16px;
  }

  .modal-v2,
  .modal-v3 {
    width: calc(100% - 32px);
    margin: 16px;
    padding: 24px;
  }

  /* Preview bar */
  .upload-preview-bar {
    padding: 0 12px;
  }

  .preview-item {
    max-width: 140px;
  }
}

/* ─── Matura Toggle ─────────────────────────────────────────────────────── */
.matura-toggle-container {
  display: flex;
  align-items: center;
}

.matura-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
}

.matura-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border-color: #555;
}

.matura-btn.active {
  background: rgba(0, 173, 239, 0.08);
  border-color: #00adef;
  color: #00adef;
}

@media (max-width: 640px) {
  .matura-btn span {
    display: none;
  }

  .matura-btn {
    padding: 6px 8px;
  }
}

.matura-btn i {
  transition: transform 0.3s ease;
}

.matura-btn.active i {
  transform: scale(1.1) rotate(5deg);
}

/* ─── Thought Block (Fake Thinking) ─────────────────────────────────────── */
.thought-block {
  margin-bottom: 8px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
  overflow: hidden;
  max-width: fit-content;
  animation: slideInUp 0.3s ease-out;
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(5px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.thought-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  cursor: pointer;
  user-select: none;
  color: var(--text-muted);
  font-size: 12px;
  transition: background 0.2s;
}

.thought-header:hover {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-secondary);
}

.thought-header i {
  transition: transform 0.2s;
}

.thought-block.expanded .thought-header i.chevron {
  transform: rotate(180deg);
}

.thought-content {
  padding: 8px 12px 10px;
  font-size: 13px;
  color: var(--text-secondary);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: none;
  font-style: italic;
  max-width: 400px;
  line-height: 1.5;
}

.thought-block.expanded .thought-content {
  display: block;
}

.thought-timer {
  font-family: monospace;
  opacity: 0.7;
}

/* Tooltip adjustment if needed or just use title attribute */