/* ===================================
   CSS CUSTOM PROPERTIES
   =================================== */
:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #1c2128;
    --bg-hover: #21262d;
    --bg-active: #2d333b;

    --border-color: #30363d;
    --border-light: #484f58;

    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #484f58;

    /* Teal accent — keep legacy --accent-green aliases so JS inline styles still work */
    --accent: #00BFA5;
    --accent-light: #00E5CC;
    --accent-dark: #00967d;
    --accent-glow: rgba(0, 191, 165, 0.2);
    --accent-glow-strong: rgba(0, 191, 165, 0.35);
    --accent-green: #00BFA5;
    --accent-green-light: #00E5CC;
    --accent-green-dark: #00967d;
    --accent-green-glow: rgba(0, 191, 165, 0.2);

    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 0.75rem;
    --spacing-lg: 1rem;
    --spacing-xl: 1.5rem;
    --spacing-2xl: 2rem;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.6);

    --sidebar-width: 280px;
}

/* ===================================
   RESET & BASE
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    overflow: hidden;
    height: 100vh;
}

/* ===================================
   APP LAYOUT
   =================================== */
.app-wrapper {
    display: flex;
    height: 100vh;
    background: var(--bg-primary);
    padding: 8px;
    gap: 8px;
    position: relative;
    overflow: hidden;
}

/* ===================================
   LEFT SIDEBAR
   =================================== */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    overflow: hidden;
}

.sidebar-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.sidebar-logo {
    width: 32px;
    height: 32px;
    background: var(--accent);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 12px var(--accent-glow);
}

.sidebar-logo svg {
    width: 18px;
    height: 18px;
    color: white;
}

.sidebar-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.sidebar-settings {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    margin-left: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.sidebar-settings:hover {
    background: var(--bg-hover);
    color: var(--accent);
}

/* Search Box — flex row with filter button */
.search-box {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.search-input-wrap {
    position: relative;
    flex: 1;
}

.search-input {
    width: 100%;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.6rem var(--spacing-lg);
    padding-left: 2.25rem;
    color: var(--text-primary);
    font-size: 0.8rem;
    outline: none;
    transition: all 0.2s ease;
}

.search-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-glow);
}

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

.search-icon {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}

.search-filter-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.55rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.2s ease;
}

.search-filter-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: 0 0 8px var(--accent-glow);
}

/* Sidebar Content */
.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
}

.sidebar-content::-webkit-scrollbar { width: 3px; }
.sidebar-content::-webkit-scrollbar-track { background: transparent; }
.sidebar-content::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: var(--radius-full);
}

/* Sidebar Sections */
.sidebar-section {
    margin-bottom: var(--spacing-xl);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
    padding: 0 var(--spacing-xs);
}

.section-title {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.section-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.section-btn:hover {
    background: var(--bg-hover);
    color: var(--accent);
}

/* Chat Items */
.chat-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.55rem var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-bottom: 2px;
}

.chat-item:hover {
    background: var(--bg-hover);
    border-color: var(--border-color);
}

.chat-item.active {
    background: rgba(0, 191, 165, 0.06);
    border-color: var(--accent);
    box-shadow: inset 0 0 12px rgba(0, 191, 165, 0.05);
}

/* Hide the chat bubble icon — layout uses ⋮ on left + chevron on right */
.chat-icon {
    display: none;
}

/* ⋮ kebab — now on LEFT, always visible */
.chat-menu {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    flex-shrink: 0;
    transition: color 0.2s ease, background 0.2s ease;
}

.chat-item:hover .chat-menu {
    color: var(--accent);
}

.chat-item.active .chat-menu {
    color: var(--accent);
}

.chat-menu:hover {
    background: rgba(0, 191, 165, 0.12);
    color: var(--accent);
}

/* Chevron → right side */
.chat-chevron {
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    opacity: 0.4;
    transition: all 0.2s ease;
    margin-left: auto;
}

.chat-item:hover .chat-chevron,
.chat-item.active .chat-chevron {
    color: var(--accent);
    opacity: 1;
}

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

.chat-name {
    font-size: 0.82rem;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 1px;
}

.chat-preview {
    font-size: 0.72rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Status dot — kept in DOM for JS state tracking, hidden visually */
.rule-status-dot {
    display: none;
}

/* Dropdown */
.chat-menu-wrapper {
    position: relative;
    flex-shrink: 0;
}

.chat-menu-dropdown {
    position: absolute;
    left: 0;
    top: calc(100% + 4px);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    min-width: 140px;
    z-index: 50;
    overflow: hidden;
    animation: fadeIn 0.15s ease;
}

.chat-menu-dropdown button {
    width: 100%;
    background: transparent;
    border: none;
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text-primary);
    font-size: 0.8rem;
    font-family: inherit;
    text-align: left;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: background 0.15s ease;
    opacity: 1;
}

.chat-menu-dropdown button:hover {
    background: var(--bg-hover);
}

.chat-menu-dropdown button.chat-menu-delete {
    color: #f85149;
    border-top: 1px solid var(--border-color);
}

.chat-menu-dropdown button.chat-menu-delete:hover {
    background: rgba(248, 81, 73, 0.1);
}

/* Disabled rule */
.chat-item.rule-disabled .chat-name {
    color: var(--text-muted);
    text-decoration: line-through;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.new-chat-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: transparent;
    border: 1.5px solid var(--accent);
    border-radius: var(--radius-md);
    color: var(--accent);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    letter-spacing: 0.2px;
}

.new-chat-btn:hover {
    background: rgba(0, 191, 165, 0.1);
    box-shadow: 0 0 14px rgba(0, 191, 165, 0.18);
    transform: translateY(-1px);
}

.new-chat-btn svg {
    width: 16px;
    height: 16px;
}

/* ===================================
   MAIN CONTENT PANEL
   =================================== */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    background: var(--bg-secondary);
    border: 1px solid rgba(0, 191, 165, 0.25);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

/* Main Header */
.main-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.back-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.back-btn:hover {
    background: var(--bg-hover);
    color: var(--accent);
}

.chat-title {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
}

.version-badge {
    background: var(--accent);
    color: white;
    font-size: 0.6rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.header-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.header-btn:hover {
    background: var(--bg-hover);
    color: var(--accent);
}

/* Chat Container */
.chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* ===================================
   WELCOME SCREEN
   =================================== */
.welcome-screen {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
}

/* Hexagonal logo with animated concentric rings */
.welcome-logo-wrapper {
    position: relative;
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

.welcome-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid var(--accent);
    animation: ring-expand 3s ease-out infinite;
    pointer-events: none;
}

.welcome-ring-1 {
    width: 64px;
    height: 64px;
    opacity: 0.5;
    animation-delay: 0s;
}

.welcome-ring-2 {
    width: 96px;
    height: 96px;
    opacity: 0.3;
    animation-delay: 0.8s;
}

.welcome-ring-3 {
    width: 128px;
    height: 128px;
    opacity: 0.15;
    animation-delay: 1.6s;
}

@keyframes ring-expand {
    0%   { transform: scale(0.75); opacity: 0.6; }
    60%  { opacity: 0.15; }
    100% { transform: scale(1.4);  opacity: 0; }
}

.welcome-logo {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, rgba(0, 191, 165, 0.18), rgba(0, 191, 165, 0.06));
    border: 1.5px solid var(--accent);
    clip-path: polygon(50% 0%, 93% 25%, 93% 75%, 50% 100%, 7% 75%, 7% 25%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
    box-shadow: 0 0 20px rgba(0, 191, 165, 0.2);
}

.welcome-logo svg {
    width: 24px;
    height: 24px;
    color: var(--accent);
}

.welcome-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.title-teal {
    color: var(--accent);
}

.welcome-subtitle {
    font-size: 0.88rem;
    color: var(--text-secondary);
    text-align: center;
    max-width: 480px;
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.subtitle-divider {
    width: 36px;
    height: 2px;
    background: var(--accent);
    border-radius: var(--radius-full);
    opacity: 0.65;
    margin-bottom: var(--spacing-2xl);
}

/* Try Asking Section */
.try-asking-section {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-md);
    width: 100%;
    max-width: 720px;
}

.try-asking-header {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--accent);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.sparkle-icon {
    font-size: 0.9rem;
    line-height: 1;
}

.try-asking-cards {
    display: flex;
    gap: var(--spacing-md);
    width: 100%;
}

.try-asking-card {
    flex: 1;
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg) var(--spacing-xl);
    cursor: pointer;
    transition: all 0.25s ease;
    text-align: left;
    font-family: inherit;
    color: var(--text-primary);
    font-size: 0.85rem;
    line-height: 1.45;
}

.try-asking-card:hover {
    border-color: var(--accent);
    background: rgba(0, 191, 165, 0.05);
    box-shadow: 0 0 18px rgba(0, 191, 165, 0.12);
    transform: translateY(-1px);
}

.try-asking-card-icon {
    color: var(--accent);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 1px;
}

/* ===================================
   CHAT MESSAGES
   =================================== */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-xl);
    display: none;
}

.chat-messages.active {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.chat-messages::-webkit-scrollbar { width: 4px; }
.chat-messages::-webkit-scrollbar-track { background: transparent; }
.chat-messages::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: var(--radius-full);
}

.message {
    display: flex;
    gap: var(--spacing-md);
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
    animation: fadeInUp 0.3s ease;
}

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

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1rem;
}

.user-message { flex-direction: row-reverse; }

.user-message .message-avatar {
    background: var(--accent);
    color: white;
    box-shadow: 0 0 10px var(--accent-glow);
}

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

.message-content {
    flex: 1;
    max-width: calc(100% - 50px);
}

.message-text {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    line-height: 1.65;
    overflow-wrap: break-word;
    word-break: break-word;
}

.user-message .message-text {
    background: var(--accent);
    color: white;
    border-bottom-right-radius: var(--radius-sm);
    box-shadow: 0 0 16px rgba(0, 191, 165, 0.25);
}

.assistant-message .message-text {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-bottom-left-radius: var(--radius-sm);
}

.message-text p { margin-bottom: var(--spacing-sm); }
.message-text p:last-child { margin-bottom: 0; }

/* Loading Indicator */
.loading-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
}

.typing-dots { display: flex; gap: 4px; }

.typing-dots span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
    animation: typing 1.4s infinite;
}

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

@keyframes typing {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30%           { transform: translateY(-7px); opacity: 1; }
}

.loading-text {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ===================================
   INPUT AREA
   =================================== */
.input-container {
    padding: var(--spacing-lg) var(--spacing-xl);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.input-wrapper {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.chat-input-box {
    display: flex;
    align-items: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    padding: var(--spacing-sm) var(--spacing-md);
    transition: all 0.25s ease;
    gap: var(--spacing-sm);
}

.chat-input-box:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

/* Animated teal orb — replaces the home icon */
.input-left {
    display: flex;
    align-items: center;
    padding-left: var(--spacing-sm);
    flex-shrink: 0;
}

.input-orb {
    width: 22px;
    height: 22px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.orb-core {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent), 0 0 16px rgba(0, 191, 165, 0.4);
    position: relative;
    z-index: 1;
    flex-shrink: 0;
}

.input-orb::before,
.input-orb::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 1px solid var(--accent);
    animation: orb-ring 2.2s ease-out infinite;
}

.input-orb::after {
    animation-delay: 1.1s;
}

@keyframes orb-ring {
    0%   { transform: scale(0.8); opacity: 0.8; }
    100% { transform: scale(2.2); opacity: 0; }
}

.chat-input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.92rem;
    padding: var(--spacing-sm) var(--spacing-sm);
    resize: none;
    max-height: 120px;
    outline: none;
    line-height: 1.5;
}

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

.input-actions {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

.input-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

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

/* Mic button — teal */
.mic-btn {
    color: var(--accent) !important;
}

.mic-btn:hover {
    background: rgba(0, 191, 165, 0.12) !important;
    color: var(--accent-light) !important;
}

/* Send button — circular */
.send-btn {
    background: var(--accent);
    color: white;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    box-shadow: 0 0 12px rgba(0, 191, 165, 0.35);
    flex-shrink: 0;
}

.send-btn:hover {
    background: var(--accent-light);
    transform: scale(1.08);
    box-shadow: 0 0 18px rgba(0, 191, 165, 0.5);
}

.send-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.input-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-sm);
    padding: 0 var(--spacing-sm);
}

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

.llm-counter {
    font-size: 0.72rem;
    color: var(--accent);
    font-weight: 600;
}

/* ===================================
   MODALS
   =================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    max-width: 480px;
    width: 90%;
    max-height: 80vh;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}

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

.modal-header h2 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--spacing-xs);
    line-height: 1;
    transition: color 0.2s ease;
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-xl);
    max-height: 60vh;
    overflow-y: auto;
}

.modal-body p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.modal-input {
    width: 100%;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    outline: none;
    transition: all 0.2s ease;
}

.modal-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-glow);
}

.modal-footer {
    padding: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
}

.btn-primary {
    background: var(--accent);
    border: none;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 0 10px var(--accent-glow);
}

.btn-primary:hover {
    background: var(--accent-light);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.rule-display {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    font-family: 'Courier New', monospace;
    font-size: 0.78rem;
    color: var(--text-secondary);
    white-space: pre-wrap;
    word-wrap: break-word;
    max-height: 400px;
    overflow-y: auto;
}

/* ===================================
   RESPONSIVE
   =================================== */
@media (max-width: 1024px) {
    .app-wrapper {
        padding: 0;
        gap: 0;
    }

    .sidebar {
        position: fixed;
        left: -100%;
        top: 0;
        height: 100%;
        z-index: 100;
        border-radius: 0;
        border-right: 1px solid var(--border-color);
        transition: left 0.3s ease;
    }

    .sidebar.open {
        left: 0;
    }

    .sidebar-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.6);
        z-index: 99;
        display: none;
    }

    .sidebar-overlay.show {
        display: block;
    }

    .main-content {
        border-radius: 0;
        border: none;
        margin: 0;
    }

    .try-asking-cards {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .welcome-title { font-size: 1.4rem; }
    .modal-content { width: 95%; }
}

@media (max-width: 480px) {
    .input-container { padding: var(--spacing-md); }
    .welcome-screen { padding: var(--spacing-lg); }
}

/* ===================================
   UTILITY
   =================================== */
.hidden { display: none !important; }
.no-scroll { overflow: hidden; }

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

/* ===================================
   RULE PREVIEW PANEL
   =================================== */
.rpp-outer {
    position: absolute;
    right: 8px;
    top: 8px;
    bottom: 8px;
    width: 370px;
    z-index: 30;
    transform: translateX(calc(100% + 16px));
    opacity: 0;
    pointer-events: none;
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.25s ease;
}

.rpp-outer.open {
    transform: translateX(0);
    opacity: 1;
    pointer-events: all;
}

.rule-preview-panel {
    width: 100%;
    height: 100%;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: -8px 0 40px rgba(0, 0, 0, 0.5);
}

.rpp-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.rpp-title {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.6px;
}

.rpp-close-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

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

.rpp-body {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-xl);
}

.rpp-body::-webkit-scrollbar { width: 3px; }
.rpp-body::-webkit-scrollbar-track { background: transparent; }
.rpp-body::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: var(--radius-full);
}

.rpp-rule-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: var(--spacing-md);
}

.rpp-badge-row { margin-bottom: var(--spacing-xl); }

.rpp-badge {
    display: inline-flex;
    align-items: center;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.6px;
}

.rpp-badge-draft {
    background: rgba(59, 130, 246, 0.12);
    color: #60a5fa;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.rpp-badge-enabled {
    background: rgba(0, 191, 165, 0.1);
    color: var(--accent);
    border: 1px solid rgba(0, 191, 165, 0.3);
}

.rpp-badge-disabled {
    background: rgba(100, 100, 100, 0.1);
    color: var(--text-muted);
    border: 1px solid var(--border-color);
}

.rpp-sections { display: flex; flex-direction: column; }

.rpp-section-label {
    font-size: 0.63rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: 6px;
}

.rpp-section-label::before {
    content: '';
    display: inline-block;
    width: 12px;
    height: 1px;
    background: var(--accent);
    opacity: 0.5;
    flex-shrink: 0;
}

.rpp-section-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-lg);
}

.rpp-flow-arrow {
    display: flex;
    justify-content: flex-start;
    padding-left: calc(var(--spacing-lg) + 10px);
    color: var(--text-muted);
    opacity: 0.35;
    margin: 2px 0;
}

.rpp-item-icon {
    width: 30px;
    height: 30px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.rpp-icon-blue   { background: rgba(59,  130, 246, 0.15); color: #60a5fa; }
.rpp-icon-green  { background: rgba(34,  197,  94, 0.12); color: #4ade80; }
.rpp-icon-purple { background: rgba(168,  85, 247, 0.12); color: #c084fc; }
.rpp-icon-teal   { background: rgba(0,   191, 165, 0.12); color: var(--accent); }
.rpp-icon-orange { background: rgba(249, 115,  22, 0.12); color: #fb923c; }

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

.rpp-item-title {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.rpp-item-desc {
    font-size: 0.74rem;
    color: var(--text-secondary);
    line-height: 1.45;
    word-break: break-word;
}

.rpp-footer {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

.rpp-create-btn {
    width: 100%;
    background: var(--accent);
    border: none;
    border-radius: var(--radius-md);
    padding: 0.7rem var(--spacing-lg);
    color: white;
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 0 14px rgba(0, 191, 165, 0.28);
}

.rpp-create-btn:hover {
    background: var(--accent-light);
    box-shadow: 0 0 22px rgba(0, 191, 165, 0.45);
    transform: translateY(-1px);
}

.rpp-edit-btn {
    width: 100%;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.65rem var(--spacing-lg);
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.rpp-edit-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--border-light);
}

.rpp-done-btn {
    width: 100%;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.65rem var(--spacing-lg);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.rpp-done-btn:hover {
    background: var(--bg-hover);
    border-color: var(--border-light);
}

@media (max-width: 1024px) {
    .rpp-outer { display: none; }
}

/* ===================================
   QUICK REPLY CHIPS
   =================================== */

/* Wrapper that groups the special-row + chip-row */
.quick-reply-wrapper {
    margin-top: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* Base chip row — flex-wrap for a few chips (spaces) */
.quick-reply-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

/* Many device chips — flex-wrap so each chip sizes to its full name */
.quick-reply-container.quick-reply-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

/* "All" sits in its own full-width row */
.qr-special-row {
    flex-wrap: nowrap;
}

/* ── Chip base ── */
.quick-reply-btn {
    background: var(--bg-tertiary);
    border: 1.5px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.4rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-family: inherit;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, color 0.15s, box-shadow 0.15s, opacity 0.15s;
    white-space: nowrap;
    line-height: 1.4;
    user-select: none;
    text-align: center;
}

.quick-reply-btn:hover:not(:disabled) {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    box-shadow: 0 0 8px var(--accent-glow-strong);
}

.quick-reply-btn:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Selected state */
.quick-reply-btn.qr-selected {
    background: var(--accent-dark);
    border-color: var(--accent);
    color: #fff;
    opacity: 0.8;
    cursor: default;
}

/* Unselected chips after a choice is made */
.quick-reply-btn:disabled:not(.qr-selected) {
    opacity: 0.28;
    cursor: default;
    pointer-events: none;
}

/* "All" chip — teal accent, spans naturally in its own row */
.quick-reply-btn.qr-special {
    background: rgba(0, 191, 165, 0.12);
    border-color: var(--accent);
    color: var(--accent-light);
    font-weight: 600;
    padding: 0.4rem 1.25rem;
}

.quick-reply-btn.qr-special:hover:not(:disabled) {
    background: var(--accent);
    color: #fff;
}