body {
    font-family: 'Nunito', sans-serif;
    height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Enable pull-to-refresh on mobile */
@media (max-width: 1023px) {
    html {
        overflow: auto;
        overscroll-behavior-y: auto;
    }
    
    body {
        overflow: auto !important;
        overscroll-behavior-y: auto;
        min-height: 100vh;
        height: auto;
    }
}

.chat-container {
    height: calc(100vh - env(safe-area-inset-bottom));
}

#chatWindow {
    flex-grow: 1;
    overflow-y: auto;
    padding-bottom: env(safe-area-inset-bottom, 0);
}

/* Desktop: prevent rubber-band overscroll leaking out of the chat pane.
   Mobile: allow overscroll to propagate so pull-to-refresh works. */
@media (min-width: 1024px) {
    #chatWindow {
        overscroll-behavior-y: contain;
    }
}

/* Hide scrollbar by default, show on hover (Webkit / Blink) */
#chatWindow::-webkit-scrollbar {
    width: 6px;
}

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

#chatWindow::-webkit-scrollbar-thumb {
    background: transparent;
    border-radius: 3px;
}

#chatWindow:hover::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.2);
}

#chatWindow:hover::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.35);
}

/* Firefox scrollbar styling */
#chatWindow {
    scrollbar-width: thin;
    scrollbar-color: transparent transparent;
}

#chatWindow:hover {
    scrollbar-color: rgba(0, 0, 0, 0.2) transparent;
}

/* Mobile: extra bottom padding for fixed input box */
@media (max-width: 1023px) {
    #chatWindow {
        padding-bottom: calc(80px + env(safe-area-inset-bottom, 16px));
    }
    
    #chatPageContent {
        padding-bottom: 0;
    }
}

/* Chat input container - fixed on mobile, sticky on desktop */
#chatInputContainer {
    padding-bottom: calc(1rem + env(safe-area-inset-bottom, 0));
}

/* Safe area padding utility */
.pb-safe {
    padding-bottom: env(safe-area-inset-bottom, 0);
}

/* Ensure input is always accessible on mobile */
@media (max-width: 1023px) {
    #chatInputContainer {
        box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    }
}

/* ================================
   Welcome Centered State
   ================================ */
.welcome-message {
    min-height: 100%;
    transition: opacity 0.15s ease;
}

.welcome-message.fade-out {
    opacity: 0;
}

/* Only apply centering heights when welcome is visible (not fading out / hidden) */
#chatWindowMessages:has(.welcome-message:not(.fade-out)) {
    height: 100%;
}

#chatWindow:has(.welcome-message:not(.fade-out)) {
    padding-bottom: 0;
}

#chatWindow:has(.welcome-message:not(.fade-out)) > div {
    height: 100%;
}

/* On mobile, lock scrolling when welcome screen is shown (no content to scroll) */
@media (max-width: 1023px) {
    body:has(.welcome-message:not(.fade-out)) {
        overflow: hidden !important;
        height: 100dvh;
    }
}

/* Smooth slide-up entrance for the bottom input bar */
#chatInputContainer {
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

#chatInputContainer.slide-up-enter {
    transform: translateY(100%);
    opacity: 0;
}

/* ================================
   Sidebar Styling
   ================================ */
.sidebar-container {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    padding: 1.5rem;
}

.new-chat-button {
    background: transparent;
    border: none;
    color: white;
    border-radius: 8px;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.new-chat-button:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

.new-chat-button:hover i {
    color: #f97316;
    transform: scale(1.1);
}

.new-chat-button i {
    transition: all 0.2s ease;
}

.new-chat-button span {
    transition: color 0.2s ease;
}

.new-chat-button:hover span {
    color: #fbbf24;
}

/* Sidebar: allow conversation menus to overflow */
#appSidebar {
    overflow: visible;
}

/* Desktop sidebar: static flex child (ID selector overrides Tailwind classes) */
@media (min-width: 1024px) {
    #appSidebar {
        position: static;
        transform: none;
        width: 300px;
        min-width: 300px;
        height: auto;
        padding: 0;
        display: flex;
    }
}

/* Mobile sidebar overlay shadow (below lg breakpoint) */
@media (max-width: 1023px) {
    #appSidebar {
        box-shadow: 4px 0 20px rgba(0, 0, 0, 0.3);
    }
}

/* Ensure conversation history allows menus to overflow */
#conversationHistory {
    overflow-x: visible;
}

#conversationList {
    overflow: visible;
}

/* ================================
   Message Styling
   ================================ */
.message {
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
    max-width: 90%;
    color: #1f2937;
}

.prose a {
    color: #1d4ed8;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.prose a:hover {
    color: #1e40af;
}

/* Table styling inside chat messages */
.message-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 0.75rem 0;
    font-size: 0.875rem;
}

.message-content table thead {
    background-color: #f1f5f9;
}

.message-content table th {
    padding: 0.5rem 0.75rem;
    text-align: left;
    font-weight: 600;
    color: #334155;
    border-bottom: 2px solid #cbd5e1;
}

.message-content table td {
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid #e2e8f0;
    color: #475569;
}

.message-content table tbody tr:last-child td {
    border-bottom: none;
}

.message-content table tbody tr:hover {
    background-color: #f8fafc;
}

/* ================================
   HTMX loading indicators
   ================================ */
.htmx-indicator {
    opacity: 0;
    transition: opacity 200ms ease-in;
}

.htmx-request .htmx-indicator {
    opacity: 1;
}

.htmx-request.htmx-indicator {
    opacity: 1;
}

/* Loading spinner */
.inline-loader {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ================================
   Agent Mode Styles - Gemini-style Thinking Dropdown
   ================================ */

/* Thinking dropdown container */
.thinking-dropdown {
    margin-bottom: 1rem;
    animation: fadeIn 0.2s ease-out;
}

/* Toggle button */
.thinking-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border: 1px solid #e2e8f0;
    border-radius: 1rem;
    cursor: pointer;
    font-size: 0.875rem;
    color: #64748b;
    transition: all 0.2s ease;
    width: fit-content;
}

.thinking-toggle:hover {
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
    color: #475569;
}

.thinking-toggle-icon {
    display: flex;
    align-items: center;
    color: #94a3b8;
}

.thinking-toggle-icon svg {
    transition: transform 0.2s ease;
}

.thinking-toggle-icon svg.rotate-180 {
    transform: rotate(180deg);
}

.thinking-toggle-text {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.thinking-sparkle {
    font-size: 0.875rem;
}

.thinking-label {
    font-weight: 500;
}

/* Thinking status indicator */
.thinking-status {
    display: flex;
    align-items: center;
    margin-left: 0.25rem;
}

.thinking-status-active .thinking-dot {
    width: 6px;
    height: 6px;
    background-color: #6366f1;
    border-radius: 50%;
    animation: thinkingPulse 1.5s ease-in-out infinite;
}

.thinking-status-complete {
    color: #64748b;
}

/* Thinking content area */
.thinking-content {
    margin-top: 0.75rem;
    padding: 1rem 1.25rem;
    background-color: #fafbfc;
    border: 1px solid #e8ecf0;
    border-radius: 0.75rem;
    max-height: 400px;
    overflow-y: auto;
    transition: all 0.3s ease;
}

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

/* Thought entries */
.thinking-entries {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.thought-entry {
    animation: thoughtFadeIn 0.3s ease-out;
}

.thought-header {
    font-weight: 600;
    font-size: 0.8125rem;
    color: #374151;
    margin-bottom: 0.375rem;
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.thought-header::before {
    content: '';
    width: 4px;
    height: 4px;
    background-color: #6366f1;
    border-radius: 50%;
}

.thought-body {
    font-size: 0.8125rem;
    color: #6b7280;
    line-height: 1.6;
}

.thought-body p {
    margin: 0;
    margin-bottom: 0.25rem;
}

.thought-body p:last-child {
    margin-bottom: 0;
}

/* Actions (tool calls) in the thinking flow */
.thought-action {
    display: block;
    padding: 0.375rem 0;
    color: #4f46e5;
    font-style: italic;
}

.thought-action .action-indicator {
    color: #818cf8;
    margin-right: 0.25rem;
}

/* Results in the thinking flow */
.thought-result {
    display: block;
    padding: 0.25rem 0.5rem;
    margin: 0.25rem 0;
    background-color: #f0fdf4;
    border-radius: 0.375rem;
    color: #15803d;
    font-size: 0.75rem;
}

/* ================================
   Animations
   ================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes thoughtFadeIn {
    from {
        opacity: 0;
        transform: translateX(-8px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes thinkingPulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.2);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* Scrollbar styling for thinking content */
.thinking-content::-webkit-scrollbar {
    width: 4px;
}

.thinking-content::-webkit-scrollbar-track {
    background: transparent;
}

.thinking-content::-webkit-scrollbar-thumb {
    background-color: #cbd5e1;
    border-radius: 4px;
}

.thinking-content::-webkit-scrollbar-thumb:hover {
    background-color: #94a3b8;
}