/* style.css - Modern Personal AI OS Stylesheet */
:root {
  --bg-primary: #0f1117;
  --bg-secondary: #161922;
  --bg-tertiary: #1f2330;
  --bg-hover: #262b3b;
  --border-color: #2b3042;
  --border-focus: #4f46e5;
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-light: rgba(79, 70, 229, 0.15);
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
}

[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --bg-hover: #e2e8f0;
  --border-color: #e2e8f0;
  --border-focus: #4f46e5;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
}

/* AUTH CONTAINER */
.auth-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1.5rem;
  background: radial-gradient(circle at top right, rgba(79, 70, 229, 0.12), transparent 40%),
              radial-gradient(circle at bottom left, rgba(16, 185, 129, 0.08), transparent 40%);
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
}

.auth-header {
  text-align: center;
  margin-bottom: 2rem;
}

.auth-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--primary-light);
  color: var(--primary);
  margin-bottom: 1rem;
}

.auth-header h2 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.auth-header p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 0.25rem;
}

.auth-footer {
  margin-top: 1.5rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* FORMS */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  transition: all 0.15s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 2px var(--primary-light);
}

.form-group small {
  display: block;
  color: var(--text-muted);
  font-size: 0.78rem;
  margin-top: 0.35rem;
}

.input-with-button {
  display: flex;
  gap: 0.5rem;
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.2rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.9rem;
  cursor: pointer;
  border: none;
  transition: all 0.15s ease;
}

.btn-block { width: 100%; }

.btn-primary {
  background: var(--primary);
  color: #ffffff;
}

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

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

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

.btn-danger {
  background: var(--danger);
  color: #ffffff;
}

.btn-danger:hover {
  background: #dc2626;
}

.btn-sm {
  padding: 0.4rem 0.8rem;
  font-size: 0.82rem;
}

.btn-icon {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-icon:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.error-banner {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid var(--danger);
  color: #fca5a5;
  padding: 0.6rem 0.8rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

/* MODAL */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
}

.modal-card {
  width: 100%;
  max-width: 460px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.modal-header h3 {
  font-size: 1.25rem;
  font-weight: 600;
}

.modal-subtitle {
  color: var(--text-secondary);
  font-size: 0.88rem;
  margin-bottom: 1.5rem;
}

/* APP LAYOUT */
.app-layout {
  display: flex;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
}

/* SIDEBAR */
.sidebar {
  width: 260px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: transform 0.25s ease;
  z-index: 50;
}

.sidebar-header {
  padding: 1.25rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-text h3 {
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.2;
}

.vps-badge {
  font-size: 0.7rem;
  padding: 0.1rem 0.4rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-secondary);
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 0.75rem 0.5rem;
}

.nav-section-title {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  padding: 0.75rem 0.75rem 0.25rem;
}

.nav-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: all 0.15s ease;
  margin-bottom: 0.15rem;
}

.nav-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.nav-item.active {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}

.sidebar-footer {
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.user-pill {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.85rem;
}

.user-info {
  display: flex;
  flex-direction: column;
}

.username {
  font-size: 0.85rem;
  font-weight: 600;
}

.user-role {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* MAIN CONTENT */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

.topbar {
  height: 60px;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  flex-shrink: 0;
}

.page-title {
  font-size: 1.1rem;
  font-weight: 600;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.model-picker-container {
  display: flex;
  align-items: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.2rem 0.5rem;
  gap: 0.5rem;
}

.provider-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
}

.provider-badge.local {
  background: rgba(16, 185, 129, 0.15);
  color: var(--success);
}

.provider-badge.cloud {
  background: rgba(79, 70, 229, 0.15);
  color: var(--primary);
}

.model-dropdown {
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 0.85rem;
  font-family: inherit;
  outline: none;
  cursor: pointer;
}

.model-dropdown option,
.model-dropdown optgroup {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.25rem;
}

/* VIEWS CONTAINER */
.views-wrapper {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.tab-view {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.tab-view.hidden {
  display: none !important;
}

.section-container {
  padding: 2rem;
  overflow-y: auto;
  height: 100%;
}

.section-header {
  margin-bottom: 1.5rem;
}

.section-header h2 {
  font-size: 1.4rem;
  font-weight: 700;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 0.2rem;
}

.section-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

/* CHAT INTERFACE */
.chat-container {
  display: flex;
  height: 100%;
  overflow: hidden;
}

.chat-sidebar {
  width: 240px;
  border-right: 1px solid var(--border-color);
  background: var(--bg-secondary);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.chat-sidebar-header {
  padding: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.conversations-list {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem;
}

.conv-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 0.7rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.15s ease;
  margin-bottom: 0.25rem;
}

.conv-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.conv-item.active {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-weight: 500;
}

.conv-title {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

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

.messages-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.message-bubble {
  max-width: 820px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  gap: 1rem;
}

.message-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.85rem;
  font-weight: 600;
}

.message-avatar.user {
  background: var(--primary);
  color: #fff;
}

.message-avatar.assistant {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--success);
}

.message-body {
  flex: 1;
  overflow-x: auto;
}

.message-sender {
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: var(--text-secondary);
}

.chat-input-wrapper {
  padding: 1rem 1.5rem 1.5rem;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
}

.chat-input-form {
  max-width: 820px;
  margin: 0 auto;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 0.5rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.input-controls-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.agent-selector-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}

.agent-selector-pill select {
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 0.78rem;
  outline: none;
  cursor: pointer;
}

.input-row {
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
}

.input-row textarea {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  resize: none;
  max-height: 200px;
}

.btn-send {
  background: var(--primary);
  color: #fff;
  border: none;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-send:hover {
  background: var(--primary-hover);
}

/* EMPTY WELCOME */
.empty-chat-welcome {
  margin: auto;
  text-align: center;
  max-width: 600px;
  padding: 2rem;
}

.welcome-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: var(--primary-light);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.empty-chat-welcome h2 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.empty-chat-welcome p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.quick-prompts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  text-align: left;
}

.prompt-chip {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 0.8rem 1rem;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

.prompt-chip:hover {
  border-color: var(--primary);
  background: var(--bg-hover);
}

/* CARDS & GRIDS */
.agents-grid, .projects-grid, .models-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.agent-card, .project-card, .model-card, .settings-card, .table-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.agent-header, .card-header-icon {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.agent-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.agent-card h3 {
  font-size: 1rem;
  font-weight: 600;
}

.agent-role {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.agent-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

/* TERMINAL VIEW */
.terminal-card {
  background: #0d1117;
  border: 1px solid #30363d;
  border-radius: var(--radius-md);
  height: calc(100vh - 120px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.terminal-header {
  background: #161b22;
  border-bottom: 1px solid #30363d;
  padding: 0.6rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.terminal-tabs span {
  font-size: 0.82rem;
  font-family: var(--font-mono);
  color: #c9d1d9;
}

.terminal-badge {
  font-size: 0.75rem;
  color: var(--success);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.terminal-output {
  flex: 1;
  padding: 1rem;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: #c9d1d9;
  overflow-y: auto;
  white-space: pre-wrap;
  line-height: 1.4;
}

.terminal-input-bar {
  border-top: 1px solid #30363d;
  background: #161b22;
  padding: 0.6rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.prompt-sign {
  color: var(--success);
  font-family: var(--font-mono);
  font-weight: 700;
}

.terminal-input-bar input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: #fff;
}

/* APPROVAL BANNER */
.approval-card {
  background: rgba(245, 158, 11, 0.15);
  border-bottom: 1px solid var(--warning);
  padding: 0.85rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.approval-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.approval-info p {
  font-size: 0.82rem;
  color: #fbbf24;
}

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

/* FILE MANAGER LAYOUT */
.file-manager-layout {
  display: flex;
  gap: 1.25rem;
  height: calc(100vh - 140px);
}

.file-tree-pane {
  width: 320px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
}

.file-pane-header {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 600;
}

.file-list {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem;
}

.file-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  cursor: pointer;
  color: var(--text-secondary);
}

.file-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.file-item.active {
  background: var(--primary-light);
  color: var(--primary);
}

.file-editor-pane {
  flex: 1;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
}

.editor-header {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 600;
}

#file-editor {
  flex: 1;
  width: 100%;
  background: var(--bg-tertiary);
  border: none;
  outline: none;
  padding: 1rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-primary);
  resize: none;
  line-height: 1.5;
}

/* METRICS & TABLES */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.metric-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.metric-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.metric-value {
  font-size: 1.4rem;
  font-weight: 700;
}

.metric-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.88rem;
  margin-top: 0.75rem;
}

.data-table th, .data-table td {
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid var(--border-color);
}

.data-table th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
}

/* UTILITIES */
.hidden { display: none !important; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.text-primary { color: var(--primary); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }

/* RESPONSIVE */
@media (max-width: 900px) {
  .sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .mobile-toggle {
    display: inline-flex;
  }
  .file-manager-layout {
    flex-direction: column;
  }
  .file-tree-pane {
    width: 100%;
    height: 250px;
  }
  .quick-prompts {
    grid-template-columns: 1fr;
  }
}