/* ========================================
   Claude CLI Web — Terminal Theme
   ======================================== */

:root {
  /* Core colors — matching Claude CLI dark theme */
  --bg-primary: #1a1b26;
  --bg-secondary: #16171f;
  --bg-tertiary: #1e1f2e;
  --bg-hover: #24253a;
  --bg-input: #13141c;

  --text-primary: #c0caf5;
  --text-secondary: #a9b1d6;
  --text-dim: #565f89;
  --text-muted: #3b3f5c;

  --accent-primary: #DA7756;    /* Terracotta — Claude brand */
  --accent-secondary: #E8956A;  /* Warm orange light */
  --accent-green: #9ece6a;
  --accent-yellow: #e0af68;
  --accent-red: #f7768e;
  --accent-cyan: #7dcfff;
  --accent-orange: #ff9e64;

  --border-color: #292e42;
  --border-active: #3d4266;

  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'SF Mono', 'Consolas', monospace;
  --font-size: 14px;
  --line-height: 1.6;

  --radius: 8px;
  --radius-sm: 4px;
}

/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Base */
html, body {
  height: 100%;
  overflow: hidden;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: var(--font-size);
  line-height: var(--line-height);
  -webkit-font-smoothing: antialiased;
}

#app {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

/* ========================================
   Top Bar
   ======================================== */
#top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
  z-index: 10;
}

.top-bar-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo {
  display: flex;
  align-items: center;
  color: var(--accent-primary);
}

.logo svg {
  width: 22px;
  height: 22px;
}

.title {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 14px;
}

.separator {
  color: var(--text-muted);
}

.model-badge {
  background: var(--bg-tertiary);
  color: var(--accent-secondary);
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 12px;
  border: 1px solid var(--border-color);
}

.work-dir-badge {
  background: var(--bg-tertiary);
  color: var(--text-dim);
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 11px;
  border: 1px solid var(--border-color);
  cursor: pointer;
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: all 0.15s;
}

.work-dir-badge:hover {
  color: var(--accent-primary);
  border-color: var(--accent-primary);
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.status.idle .status-dot { background: var(--accent-green); }
.status.idle .status-text { color: var(--accent-green); }

.status.thinking .status-dot {
  background: var(--accent-yellow);
  animation: pulse 1s ease-in-out infinite;
}
.status.thinking .status-text { color: var(--accent-yellow); }

.status.streaming .status-dot {
  background: var(--accent-primary);
  animation: pulse 0.6s ease-in-out infinite;
}
.status.streaming .status-text { color: var(--accent-primary); }

.status.error .status-dot { background: var(--accent-red); }
.status.error .status-text { color: var(--accent-red); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.token-display {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--text-dim);
  font-size: 12px;
}

.token-icon {
  color: var(--accent-primary);
}

/* ========================================
   Terminal / Output Area
   ======================================== */
#terminal {
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.output {
  flex: 1;
  overflow-y: auto;
  padding: 16px 20px;
  scroll-behavior: smooth;
}

/* Scrollbar */
.output::-webkit-scrollbar {
  width: 6px;
}

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

.output::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}

.output::-webkit-scrollbar-thumb:hover {
  background: var(--border-active);
}

/* Welcome */
.welcome-block {
  text-align: center;
  padding: 24px 0 32px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 16px;
}

.ascii-logo {
  color: var(--accent-primary);
  font-size: 10px;
  line-height: 1.2;
  margin-bottom: 16px;
  opacity: 0.7;
}

.welcome-text p {
  margin: 4px 0;
}

.dim {
  color: var(--text-dim);
}

/* ========================================
   Message Blocks
   ======================================== */
.message-block {
  margin: 12px 0;
  animation: fadeIn 0.15s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* User message */
.message-block.user {
  padding: 8px 0;
}

.message-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
  font-size: 12px;
}

.message-header .role {
  font-weight: 600;
}

.message-block.user .role {
  color: var(--accent-cyan);
}

.message-block.assistant .role {
  color: var(--accent-primary);
}

.message-header .timestamp {
  color: var(--text-muted);
  font-size: 11px;
}

.message-body {
  padding-left: 2px;
}

.message-block.user .message-body {
  color: var(--text-primary);
  white-space: pre-wrap;
  word-wrap: break-word;
}

/* Assistant message */
.message-block.assistant {
  padding: 8px 0;
}

.message-block.assistant .message-body {
  color: var(--text-secondary);
}

/* System message */
.message-block.system {
  padding: 8px 12px;
  background: var(--bg-tertiary);
  border-left: 3px solid var(--accent-secondary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 8px 0;
}

.message-block.system .message-body {
  color: var(--text-secondary);
  font-size: 13px;
}

/* Error message */
.message-block.error {
  padding: 8px 12px;
  background: rgba(247, 118, 142, 0.08);
  border-left: 3px solid var(--accent-red);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 8px 0;
}

.message-block.error .message-body {
  color: var(--accent-red);
  font-size: 13px;
}

/* ========================================
   Thinking Block
   ======================================== */
.thinking-block {
  margin: 8px 0;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
}

.thinking-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--bg-tertiary);
  cursor: pointer;
  user-select: none;
  font-size: 12px;
  color: var(--text-dim);
}

.thinking-header:hover {
  background: var(--bg-hover);
}

.thinking-toggle {
  transition: transform 0.2s;
  font-size: 10px;
}

.thinking-header.collapsed .thinking-toggle {
  transform: rotate(-90deg);
}

.thinking-content {
  padding: 12px;
  font-size: 13px;
  color: var(--text-dim);
  max-height: 300px;
  overflow-y: auto;
  white-space: pre-wrap;
  border-top: 1px solid var(--border-color);
}

.thinking-content.collapsed {
  display: none;
}

/* Thinking animation */
.thinking-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  color: var(--accent-yellow);
  font-size: 13px;
}

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

.thinking-dots span {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent-yellow);
  animation: dotBounce 1.4s ease-in-out infinite;
}

.thinking-dots span:nth-child(2) { animation-delay: 0.2s; }
.thinking-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes dotBounce {
  0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); }
  40% { opacity: 1; transform: scale(1.2); }
}

/* ========================================
   Streaming Cursor
   ======================================== */
.cursor {
  display: inline-block;
  width: 8px;
  height: 16px;
  background: var(--accent-primary);
  animation: blink 0.8s step-end infinite;
  vertical-align: text-bottom;
  margin-left: 2px;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* ========================================
   Tool Usage Display
   ======================================== */
.tool-block {
  margin: 8px 0;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  font-size: 13px;
}

.tool-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--bg-tertiary);
  color: var(--accent-orange);
  cursor: pointer;
}

.tool-header:hover {
  background: var(--bg-hover);
}

.tool-icon {
  font-size: 14px;
}

.tool-name {
  font-weight: 600;
}

.tool-desc {
  color: var(--text-dim);
  font-size: 12px;
}

.tool-content {
  padding: 8px 12px;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  max-height: 300px;
  overflow-y: auto;
}

.tool-content.collapsed {
  display: none;
}

.tool-content pre {
  margin: 0;
  font-size: 12px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-wrap: break-word;
}

.tool-content pre code {
  color: var(--text-secondary);
}

/* Tool Status Badges */
.tool-status {
  margin-left: auto;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  flex-shrink: 0;
}

.tool-status-pending {
  background: rgba(224, 175, 104, 0.12);
  color: var(--accent-yellow);
}

.tool-status-executing {
  background: rgba(218, 119, 86, 0.12);
  color: var(--accent-primary);
  animation: pulse 0.8s ease-in-out infinite;
}

.tool-status-done {
  background: rgba(158, 206, 106, 0.12);
  color: var(--accent-green);
}

.tool-status-error {
  background: rgba(247, 118, 142, 0.12);
  color: var(--accent-red);
}

.tool-status-denied {
  background: rgba(247, 118, 142, 0.08);
  color: var(--text-dim);
}

/* Tool Result */
.tool-result {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border-color);
}

.tool-result pre {
  margin: 0;
  font-size: 12px;
  line-height: 1.5;
  max-height: 300px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-wrap: break-word;
}

.tool-result-error {
  color: var(--accent-red) !important;
}

.tool-result-error code {
  color: var(--accent-red) !important;
}

/* Diff colors */
.diff-add {
  color: var(--accent-green);
}

.diff-remove {
  color: var(--accent-red);
  text-decoration: line-through;
  opacity: 0.75;
}

.diff-header {
  color: var(--text-dim);
  font-weight: 600;
}

/* ========================================
   Permission Request
   ======================================== */
.permission-request {
  margin: 8px 0;
  border: 1px solid var(--accent-yellow);
  border-radius: var(--radius);
  overflow: hidden;
  animation: fadeIn 0.15s ease-out;
  background: rgba(224, 175, 104, 0.04);
}

.permission-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: rgba(224, 175, 104, 0.08);
  border-bottom: 1px solid rgba(224, 175, 104, 0.15);
}

.permission-icon {
  font-size: 14px;
}

.permission-title {
  font-weight: 600;
  font-size: 13px;
  color: var(--accent-yellow);
}

.permission-body {
  padding: 10px 12px;
}

.permission-tool {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.permission-tool .tool-name {
  font-weight: 600;
  color: var(--accent-orange);
  font-size: 13px;
}

.permission-detail {
  margin: 0;
  padding: 8px 10px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 12px;
  line-height: 1.5;
  max-height: 200px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-wrap: break-word;
}

.permission-detail code {
  color: var(--text-secondary);
}

.permission-actions {
  display: flex;
  gap: 8px;
  padding: 8px 12px;
  border-top: 1px solid rgba(224, 175, 104, 0.1);
  background: rgba(224, 175, 104, 0.04);
}

.btn-approve {
  padding: 6px 16px;
  background: var(--accent-green);
  color: var(--bg-primary);
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s;
}

.btn-approve:hover {
  opacity: 0.85;
}

.btn-deny {
  padding: 6px 16px;
  background: transparent;
  color: var(--accent-red);
  border: 1px solid var(--accent-red);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-deny:hover {
  background: rgba(247, 118, 142, 0.1);
}

.btn-always {
  padding: 6px 16px;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-always:hover {
  background: var(--bg-hover);
  border-color: var(--accent-green);
  color: var(--accent-green);
}

/* ========================================
   Slash Command Dropdown
   ======================================== */
.slash-menu {
  position: relative;
  margin-bottom: 8px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-active);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.4);
  animation: slideUp 0.12s ease-out;
  max-height: 320px;
  display: flex;
  flex-direction: column;
}

.slash-menu.hidden {
  display: none !important;
}

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

.slash-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.slash-menu-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.slash-menu-hint {
  font-size: 11px;
  color: var(--text-muted);
}

.slash-menu-list {
  overflow-y: auto;
  max-height: 264px;
}

.slash-menu-list::-webkit-scrollbar {
  width: 4px;
}

.slash-menu-list::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 2px;
}

.slash-menu-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  cursor: pointer;
  transition: background 0.08s;
  border-left: 3px solid transparent;
}

.slash-menu-item:hover {
  background: var(--bg-hover);
}

.slash-menu-item.active {
  background: var(--bg-tertiary);
  border-left-color: var(--accent-primary);
}

.slash-menu-item-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 14px;
}

.slash-menu-item.active .slash-menu-item-icon {
  border-color: var(--accent-primary);
  background: rgba(218, 119, 86, 0.08);
}

.slash-menu-item-body {
  flex: 1;
  min-width: 0;
}

.slash-menu-item-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.slash-menu-item-name .slash-char {
  color: var(--accent-primary);
}

.slash-menu-item-name .match-highlight {
  color: var(--accent-cyan);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.slash-menu-item-desc {
  font-size: 12px;
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.slash-menu-item-shortcut {
  flex-shrink: 0;
  padding: 2px 6px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 3px;
  font-size: 10px;
  color: var(--text-muted);
}

.slash-menu-empty {
  padding: 16px 12px;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
}

/* ========================================
   Input Area
   ======================================== */
#input-area {
  padding: 12px 20px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  flex-shrink: 0;
}

.input-wrapper {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 8px 12px;
  transition: border-color 0.2s;
}

.input-wrapper:focus-within {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 1px rgba(218, 119, 86, 0.15);
}

.input-prompt {
  flex-shrink: 0;
  padding-bottom: 2px;
}

.prompt-symbol {
  color: var(--accent-primary);
  font-size: 16px;
  font-weight: bold;
}

.input-container {
  flex: 1;
}

#user-input {
  width: 100%;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: var(--font-size);
  line-height: var(--line-height);
  resize: none;
  max-height: 200px;
  overflow-y: auto;
}

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

.file-upload-btn {
  flex-shrink: 0;
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  transition: all 0.15s;
}

.file-upload-btn:hover {
  color: var(--accent-primary);
  background: rgba(218, 119, 86, 0.1);
}

/* File attachment preview */
.file-attachments {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 6px 0 4px;
}

.file-attachment {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  font-size: 11px;
  color: var(--text-secondary);
}

.file-attachment .remove-file {
  cursor: pointer;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1;
}

.file-attachment .remove-file:hover {
  color: var(--accent-red);
}

/* Drag & drop overlay */
.drop-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(218, 119, 86, 0.08);
  border: 3px dashed var(--accent-primary);
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.drop-overlay-text {
  background: var(--bg-secondary);
  color: var(--accent-primary);
  padding: 16px 32px;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 600;
  border: 1px solid var(--accent-primary);
}

.send-btn, .abort-btn {
  flex-shrink: 0;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.send-btn {
  color: var(--accent-primary);
}

.send-btn:hover {
  background: rgba(218, 119, 86, 0.15);
}

.abort-btn {
  color: var(--accent-red);
}

.abort-btn:hover {
  background: rgba(247, 118, 142, 0.15);
}

.hidden {
  display: none !important;
}

.input-footer {
  padding: 4px 4px 0;
}

.hint {
  font-size: 11px;
}

/* ========================================
   Modal
   ======================================== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
  max-width: 440px;
  width: 90%;
}

.modal-content h2 {
  color: var(--accent-primary);
  font-size: 18px;
  margin-bottom: 8px;
}

.modal-content p {
  color: var(--text-dim);
  font-size: 13px;
  margin-bottom: 16px;
}

.modal-content input {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 14px;
  outline: none;
  margin-bottom: 16px;
}

.modal-content input:focus {
  border-color: var(--accent-primary);
}

.modal-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.btn-primary {
  padding: 8px 16px;
  background: var(--accent-primary);
  color: var(--bg-primary);
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.btn-primary:hover {
  opacity: 0.9;
}

.btn-secondary {
  padding: 8px 16px;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 13px;
  cursor: pointer;
}

.btn-secondary:hover {
  background: var(--bg-hover);
}

/* ========================================
   Usage / Cost Bar
   ======================================== */
.usage-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 6px 12px;
  margin-top: 8px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  font-size: 11px;
  color: var(--text-dim);
}

.usage-bar .label {
  color: var(--text-muted);
}

.usage-bar .value {
  color: var(--text-secondary);
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 640px) {
  :root {
    --font-size: 13px;
  }

  #top-bar {
    padding: 8px 12px;
  }

  .output {
    padding: 12px;
  }

  #input-area {
    padding: 8px 12px;
  }

  .ascii-logo {
    font-size: 6px;
  }

  .token-display {
    display: none;
  }
}