:root {
    --bg-color: #0f0f0f;
    --sidebar-bg: #1a1a1a;
    --card-bg: #1f1f1f;
    --surface-bg: #252525;
    --text-color: #e0e0e0;
    --text-muted: #888;
    --primary-color: #00a884;
    --primary-hover: #00c896;
    --danger-color: #ff5f57;
    --hover-color: #2d2d2d;
    --border-color: #333;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    height: 100vh;
    overflow: hidden;
}

.container {
    display: flex;
    height: 100%;
    position: relative;
}

/* Hamburger Button */
.hamburger-btn {
    position: fixed;
    top: 16px;
    left: 16px;
    z-index: 1001;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 5px;
    transition: all 0.3s ease;
}

.hamburger-btn span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-color);
    border-radius: 2px;
    transition: all 0.3s ease;
}

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

.hamburger-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger-btn.active span:nth-child(2) {
    opacity: 0;
}

.hamburger-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Sidebar Overlay */
.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.sidebar-overlay.visible {
    opacity: 1;
}

.sidebar-overlay.hidden {
    display: none;
}

/* Sidebar */
.sidebar {
    width: 320px;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    z-index: 1000;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
}

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

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sidebar-header h2 {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 600;
}

.close-sidebar-btn {
    font-size: 1.8rem;
    line-height: 1;
    padding: 4px 10px;
}

.sidebar-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar-content .input-group {
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
}

.input-group {
    display: flex;
    gap: 8px;
}

#new-session-input {
    flex: 1;
    padding: 10px 12px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: white;
    font-size: 0.9rem;
}

#new-session-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.sidebar-actions {
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
}

#session-list {
    list-style: none;
    padding: 0;
    margin: 0;
    overflow-y: auto;
    flex: 1;
}

.session-item {
    padding: 14px 20px;
    cursor: pointer;
    border-bottom: 1px solid var(--border-color);
    transition: all 0.2s ease;
}

.session-item:hover {
    background-color: var(--hover-color);
}

.session-item.active {
    background-color: var(--hover-color);
    border-left: 3px solid var(--primary-color);
}

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

.session-item-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.session-item-name {
    font-weight: 600;
    font-size: 0.95rem;
}

.session-item-phone {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: monospace;
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #555;
    flex-shrink: 0;
}

.status-connected {
    background-color: var(--primary-color);
    box-shadow: 0 0 6px var(--primary-color);
}

/* Buttons */
.btn-primary {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 10px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

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

.btn-secondary {
    width: 100%;
    background: transparent;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    padding: 10px 14px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.btn-secondary:hover {
    background: rgba(0, 168, 132, 0.1);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 10px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s ease;
}

.btn-outline:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-link {
    background: transparent;
    border: none;
    color: var(--danger-color);
    cursor: pointer;
    padding: 6px 10px;
    font-weight: 600;
}

.btn-link:hover {
    text-decoration: underline;
}

.btn-icon {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.3rem;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: all 0.2s ease;
}

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

.btn-icon-text {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--surface-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 8px 14px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.2s ease;
}

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

.btn-icon-text .icon {
    font-size: 1rem;
}

.btn-danger {
    background-color: var(--danger-color);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
}

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

.btn-danger-small {
    background-color: transparent;
    color: var(--danger-color);
    border: 1px solid var(--danger-color);
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.2s ease;
}

.btn-danger-small:hover {
    background-color: var(--danger-color);
    color: white;
}

.full-width {
    width: 100%;
}

/* Main Content */
.main-content {
    flex: 1;
    width: 100%;
    padding: 30px;
    padding-left: 70px; /* Espacio para el hamburger */
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    background: var(--bg-color);
}

.hidden {
    display: none !important;
}

#session-details {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Session Header */
.session-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.session-header-info h2 {
    margin: 0 0 6px 0;
    font-size: 1.3rem;
}

#status-container {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #555;
}

.status-dot.connected {
    background: var(--primary-color);
    box-shadow: 0 0 8px var(--primary-color);
}

.session-header-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

/* QR Container */
#qr-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

#qr-image {
    width: 240px;
    height: 240px;
    border: 8px solid white;
    border-radius: 12px;
}

#qr-text {
    margin-top: 16px;
    color: var(--text-muted);
}

/* Config Panel - Collapsible */
.config-panel {
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease;
}

.config-panel.collapsed {
    max-height: 0;
    opacity: 0;
    border: none;
    margin: 0;
}

.config-panel.expanded {
    max-height: 600px;
    opacity: 1;
}

.config-panel-content {
    padding: 20px;
}

.config-section {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

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

.config-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.config-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.config-field label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

.config-field select,
.config-field input,
.config-field textarea {
    padding: 10px 12px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--surface-bg);
    color: white;
    font-size: 0.9rem;
}

.config-field textarea {
    resize: vertical;
    min-height: 80px;
}

.config-field select:focus,
.config-field input:focus,
.config-field textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.config-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 8px;
}

.config-actions .btn-primary {
    flex: 0 0 auto;
}

/* Bot Toggle Row */
.bot-toggle-row {
    display: flex;
    align-items: center;
    gap: 12px;
}

.provider-pill {
    padding: 4px 12px;
    border-radius: 20px;
    background: rgba(0, 168, 132, 0.15);
    border: 1px solid rgba(0, 168, 132, 0.3);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary-color);
}

/* Toggle Switch */
.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 28px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background-color: #444;
    transition: 0.3s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.3s;
}

input:checked + .slider {
    background-color: var(--primary-color);
}

input:checked + .slider:before {
    transform: translateX(22px);
}

.slider.round {
    border-radius: 28px;
}

.slider.round:before {
    border-radius: 50%;
}

/* Connected User Info */
.user-info-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.connected-as {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0;
}

.connected-as span {
    color: var(--text-color);
    font-weight: 600;
}

.section-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.search-input {
    padding: 8px 14px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--surface-bg);
    color: white;
    font-size: 0.9rem;
    width: 200px;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Kanban Board - Sales Funnel */
.kanban-board {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    min-height: calc(100vh - 280px);
}

.kanban-column {
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    min-height: 400px;
}

.kanban-column[data-stage="interest"] {
    border-top: 3px solid #3b82f6;
}

.kanban-column[data-stage="quote"] {
    border-top: 3px solid #f59e0b;
}

.kanban-column[data-stage="negotiation"] {
    border-top: 3px solid #8b5cf6;
}

.kanban-column[data-stage="closed"] {
    border-top: 3px solid var(--primary-color);
}

.kanban-column-header {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--surface-bg);
    border-radius: 12px 12px 0 0;
}

.kanban-title {
    margin: 0;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: background 0.2s ease;
}

.kanban-title:hover {
    background: var(--hover-color);
}

.kanban-title.editing {
    background: var(--surface-bg);
    outline: 2px solid var(--primary-color);
}

.kanban-count {
    background: var(--surface-bg);
    color: var(--text-muted);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
}

.kanban-cards {
    flex: 1;
    padding: 12px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.kanban-cards::-webkit-scrollbar {
    width: 4px;
}

.kanban-cards::-webkit-scrollbar-track {
    background: transparent;
}

.kanban-cards::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 2px;
}

.kanban-cards.drag-over {
    background: rgba(0, 168, 132, 0.05);
    border: 2px dashed var(--primary-color);
    border-radius: 8px;
}

.kanban-cards.empty-state {
    justify-content: center;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-style: italic;
}

/* Kanban Card */
.kanban-card {
    background: var(--surface-bg);
    border-radius: 10px;
    padding: 14px;
    cursor: grab;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.kanban-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.kanban-card.dragging {
    opacity: 0.5;
    transform: rotate(3deg);
    cursor: grabbing;
}

.kanban-card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.kanban-card-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}

.kanban-card-name {
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
}

.kanban-card-description {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 8px;
    font-style: italic;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.3;
}

.kanban-card-edit-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.85rem;
    padding: 4px 8px;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.kanban-card-edit-btn:hover {
    background: var(--hover-color);
    color: var(--primary-color);
}

.kanban-card-preview {
    color: var(--text-muted);
    font-size: 0.8rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
    margin-bottom: 10px;
}

.kanban-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.kanban-card-badge {
    background: var(--primary-color);
    color: white;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.7rem;
    font-weight: 600;
}

/* Stage Move Buttons */
.kanban-card-actions {
    display: flex;
    gap: 4px;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border-color);
}

.btn-move {
    flex: 1;
    padding: 6px 8px;
    border: none;
    border-radius: 6px;
    background: var(--card-bg);
    color: var(--text-muted);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

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

/* Legacy conversation cards (hidden now but kept for compatibility) */
.conversations-section {
    display: none;
}

.conversation-carousel {
    position: relative;
    margin: 0 -10px;
    padding: 10px;
}

.conversation-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
}

.conversation-cards.empty-state {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 150px;
    color: var(--text-muted);
    font-style: italic;
}

/* Active Chat View */
.active-chat {
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    height: calc(100vh - 200px);
    min-height: 500px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.chat-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    background: var(--surface-bg);
}

.chat-contact-info {
    flex: 1;
    display: flex;
    flex-direction: column;
}

#chat-contact-name {
    font-weight: 600;
    font-size: 1rem;
}

.chat-status {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    scroll-behavior: smooth;
}

.chat-messages::-webkit-scrollbar {
    width: 6px;
}

.chat-messages::-webkit-scrollbar-track {
    background: transparent;
}

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

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Message Bubbles */
.message-bubble {
    max-width: 70%;
    padding: 12px 16px;
    border-radius: 16px;
    position: relative;
    font-size: 0.95rem;
    line-height: 1.4;
}

.message-bubble.incoming {
    align-self: flex-start;
    background: var(--surface-bg);
    border-bottom-left-radius: 4px;
}

.message-bubble.outgoing {
    align-self: flex-end;
    background: var(--primary-color);
    color: #0b2a23;
    border-bottom-right-radius: 4px;
}

.message-meta {
    display: block;
    margin-top: 6px;
    font-size: 0.7rem;
    opacity: 0.7;
}

/* Chat Input */
.chat-input-container {
    display: flex;
    gap: 12px;
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
    background: var(--surface-bg);
}

.chat-input {
    flex: 1;
    padding: 12px 16px;
    border-radius: 24px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: white;
    font-size: 0.95rem;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    resize: none;
    overflow-y: auto;
    max-height: 120px;
    min-height: 44px;
    line-height: 1.4;
}

.chat-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.chat-input::-webkit-scrollbar {
    width: 4px;
}

.chat-input::-webkit-scrollbar-track {
    background: transparent;
}

.chat-input::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 2px;
}

.btn-send {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 24px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s ease;
}

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

.bot-active-notice {
    padding: 12px 20px;
    background: rgba(0, 168, 132, 0.1);
    border-top: 1px solid rgba(0, 168, 132, 0.2);
    text-align: center;
    font-size: 0.85rem;
    color: var(--primary-color);
}

/* Typing Indicator */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 14px 18px;
    background: var(--surface-bg) !important;
    align-self: flex-start !important;
    border-radius: 16px;
    border-bottom-left-radius: 4px;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background: var(--text-muted);
    border-radius: 50%;
    animation: typing 1.4s infinite;
}

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

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

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
    }
    30% {
        transform: translateY(-8px);
    }
}

/* Save Feedback */
.save-feedback {
    font-size: 0.85rem;
    color: var(--primary-color);
}

.save-feedback.hidden {
    display: none;
}

/* Helper Text */
.helper-text {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin: 0 0 15px 0;
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 998;
}

.settings-modal {
    position: fixed;
    inset: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 999;
}

.settings-modal-content {
    background: var(--card-bg);
    padding: 24px;
    border-radius: 16px;
    width: 90%;
    max-width: 400px;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.modal-header h3 {
    margin: 0;
}

.api-entry {
    background: var(--surface-bg);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 16px;
}

.api-entry-header h4 {
    margin: 0 0 12px 0;
    font-size: 0.95rem;
}

.api-entry input {
    width: 100%;
    padding: 10px 12px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: white;
    margin-bottom: 12px;
}

.button-row {
    display: flex;
    gap: 10px;
}

.modal-overlay.hidden,
.settings-modal.hidden {
    display: none !important;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 32px;
    left: 50%;
    transform: translate(-50%, 30px);
    background: var(--card-bg);
    color: white;
    padding: 14px 24px;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
    z-index: 2000;
    border: 1px solid var(--border-color);
}

.toast.show {
    opacity: 1;
    transform: translate(-50%, 0);
}

/* Loading Spinner */
.loading-spinner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 30px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Confirm Dialog */
.confirm-dialog-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    animation: fadeIn 0.2s ease;
}

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

.confirm-dialog {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 24px;
    min-width: 320px;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: scaleIn 0.25s ease;
}

@keyframes scaleIn {
    from {
        transform: scale(0.95);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.confirm-content p {
    margin: 0 0 20px 0;
    font-size: 1rem;
    line-height: 1.5;
}

.confirm-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

.confirm-actions button {
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s ease;
}

.alert-dialog .confirm-actions {
    justify-content: center;
}

/* Chat Input Attachments */
.chat-input-row {
    display: flex;
    gap: 12px;
    align-items: center;
    width: 100%;
}

.chat-attachments {
    display: flex;
    gap: 4px;
}

.btn-attach {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-attach:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: scale(1.1);
}

/* Buttons Modal */
.buttons-modal,
.send-button-modal {
    position: fixed;
    inset: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 999;
}

.buttons-modal-content {
    background: var(--card-bg);
    padding: 24px;
    border-radius: 16px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
}

.send-button-modal-content {
    background: var(--card-bg);
    padding: 24px;
    border-radius: 16px;
    width: 90%;
    max-width: 450px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
}

.buttons-list {
    margin: 16px 0;
    max-height: 200px;
    overflow-y: auto;
}

.button-config-card {
    background: var(--surface-bg);
    border-radius: 10px;
    padding: 14px;
    margin-bottom: 10px;
    border: 1px solid var(--border-color);
}

.button-config-card:hover {
    border-color: var(--primary-color);
}

.button-config-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.button-config-name {
    font-weight: 600;
    font-size: 0.95rem;
}

.button-config-preview {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.button-config-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.preview-button-tag {
    background: rgba(0, 168, 132, 0.15);
    border: 1px solid rgba(0, 168, 132, 0.3);
    color: var(--primary-color);
    padding: 4px 10px;
    border-radius: 14px;
    font-size: 0.75rem;
    font-weight: 500;
}

.button-config-actions {
    display: flex;
    gap: 8px;
}

.new-button-form {
    background: var(--surface-bg);
    border-radius: 12px;
    padding: 20px;
    margin-top: 16px;
}

.new-button-form h4 {
    margin: 0 0 16px 0;
    font-size: 1rem;
    color: var(--primary-color);
}

.form-field {
    margin-bottom: 14px;
}

.form-field label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.form-field input,
.form-field textarea {
    width: 100%;
    padding: 10px 12px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: white;
    font-size: 0.9rem;
}

.form-field input:focus,
.form-field textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-field textarea {
    resize: vertical;
    min-height: 60px;
}

.buttons-editor {
    margin-bottom: 16px;
}

.buttons-editor > label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 10px;
}

#buttons-inputs {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 8px;
}

.button-input-row {
    display: flex;
    gap: 8px;
    align-items: center;
}

.button-input-row input {
    flex: 1;
    padding: 8px 12px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: white;
    font-size: 0.85rem;
}

.button-input-row input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.btn-remove-row {
    width: 32px;
    height: 32px;
    font-size: 1.2rem;
    flex-shrink: 0;
    color: var(--danger-color);
}

.btn-remove-row:hover {
    background: rgba(255, 95, 87, 0.1);
}

.empty-buttons {
    color: var(--text-muted);
    font-style: italic;
    text-align: center;
    padding: 20px;
}

/* Available Buttons for sending */
.available-buttons-list {
    max-height: 400px;
    overflow-y: auto;
}

.available-button-item {
    background: var(--surface-bg);
    border-radius: 10px;
    padding: 14px;
    margin-bottom: 10px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.2s ease;
}

.available-button-item:hover {
    border-color: var(--primary-color);
    background: rgba(0, 168, 132, 0.05);
}

.available-button-name {
    font-weight: 600;
    margin-bottom: 4px;
}

.available-button-preview {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.available-button-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

/* Image/Doc Preview Modal */
.image-preview-modal,
.doc-preview-modal,
.edit-chat-modal {
    position: fixed;
    inset: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 999;
}

.image-preview-content,
.doc-preview-content,
.edit-chat-content {
    background: var(--card-bg);
    padding: 24px;
    border-radius: 16px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
}

.field-hint {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 4px;
    font-style: italic;
}

.image-preview-container {
    background: var(--surface-bg);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    max-height: 300px;
    overflow: hidden;
}

.image-preview-container img {
    max-width: 100%;
    max-height: 260px;
    object-fit: contain;
    border-radius: 8px;
}

.doc-preview-info {
    background: var(--surface-bg);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.doc-icon {
    font-size: 3rem;
}

.doc-details {
    flex: 1;
}

.doc-name {
    font-weight: 600;
    margin: 0 0 4px 0;
    word-break: break-all;
}

.doc-size {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin: 0;
}

/* Sending indicator */
.sending-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15, 15, 15, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 16px;
    z-index: 10;
}

.sending-overlay .spinner {
    width: 40px;
    height: 40px;
}

/* Contacts Modal */
.contacts-modal {
    position: fixed;
    inset: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 999;
}

.contacts-modal-content {
    background: var(--card-bg);
    padding: 24px;
    border-radius: 16px;
    width: 90%;
    max-width: 500px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
}

.contacts-search {
    margin: 16px 0;
}

.contacts-search input {
    width: 100%;
}

.contacts-list-container {
    flex: 1;
    overflow-y: auto;
    border-radius: 8px;
    background: var(--surface-bg);
    padding: 12px;
    max-height: 400px;
}

.loading-contacts {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 40px 20px;
    color: var(--text-muted);
}

.empty-contacts {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
    font-style: italic;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: 8px;
    background: var(--card-bg);
    margin-bottom: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 2px solid transparent;
}

.contact-item:hover {
    border-color: var(--primary-color);
    background: rgba(0, 168, 132, 0.05);
}

.contact-item:last-child {
    margin-bottom: 0;
}

.contact-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}

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

.contact-name {
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.contact-phone {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: monospace;
}

/* Templates Modal */
.templates-modal,
.send-template-modal {
    position: fixed;
    inset: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 999;
}

.templates-modal-content {
    background: var(--card-bg);
    padding: 24px;
    border-radius: 16px;
    width: 90%;
    max-width: 650px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
}

.send-template-modal-content {
    background: var(--card-bg);
    padding: 24px;
    border-radius: 16px;
    width: 90%;
    max-width: 500px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
}

.templates-list {
    margin: 16px 0;
    max-height: 250px;
    overflow-y: auto;
}

.template-config-card {
    background: var(--surface-bg);
    border-radius: 10px;
    padding: 14px;
    margin-bottom: 10px;
    border: 1px solid var(--border-color);
}

.template-config-card:hover {
    border-color: var(--primary-color);
}

.template-config-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.template-config-name {
    font-weight: 600;
    font-size: 0.95rem;
}

.template-config-preview {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.template-config-attachments {
    display: flex;
    gap: 6px;
    margin-bottom: 8px;
}

.template-attachment-badge {
    background: rgba(0, 168, 132, 0.15);
    border: 1px solid rgba(0, 168, 132, 0.3);
    color: var(--primary-color);
    padding: 3px 8px;
    border-radius: 10px;
    font-size: 0.7rem;
    font-weight: 500;
}

.template-config-actions {
    display: flex;
    gap: 8px;
}

.new-template-form {
    background: var(--surface-bg);
    border-radius: 12px;
    padding: 20px;
    margin-top: 16px;
}

.new-template-form h4,
.new-template-form h5 {
    margin: 0 0 16px 0;
    font-size: 1rem;
    color: var(--primary-color);
}

.new-template-form h5 {
    font-size: 0.9rem;
    margin-top: 16px;
    margin-bottom: 12px;
}

.template-attachments {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.attachment-section {
    margin-bottom: 16px;
}

.attachment-preview {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 12px;
    margin-top: 10px;
    border: 1px solid var(--border-color);
}

.attachment-preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

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

.attachment-preview img {
    max-width: 100%;
    max-height: 150px;
    object-fit: contain;
    border-radius: 6px;
    margin-bottom: 8px;
}

.file-info {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}

.file-icon {
    font-size: 2rem;
}

.file-size {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.attachment-caption-input {
    width: 100%;
    padding: 8px 12px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background: var(--surface-bg);
    color: white;
    font-size: 0.85rem;
}

.attachment-caption-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.empty-templates {
    color: var(--text-muted);
    font-style: italic;
    text-align: center;
    padding: 20px;
}

/* Available Templates for sending */
.available-templates-list {
    max-height: 400px;
    overflow-y: auto;
}

.available-template-item {
    background: var(--surface-bg);
    border-radius: 10px;
    padding: 14px;
    margin-bottom: 10px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.2s ease;
}

.available-template-item:hover {
    border-color: var(--primary-color);
    background: rgba(0, 168, 132, 0.05);
}

.available-template-name {
    font-weight: 600;
    margin-bottom: 4px;
}

.available-template-preview {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.available-template-attachments {
    display: flex;
    gap: 6px;
}

/* Kanban responsive fixes */
@media (max-width: 1200px) {
    .kanban-board {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 900px) {
    .kanban-board {
        grid-template-columns: 1fr;
    }
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        max-width: 280px;
        position: fixed;
        left: -280px;
        transition: left 0.3s ease;
        z-index: 1000;
        height: 100vh;
    }
    
    .sidebar.open {
        left: 0;
    }
    
    .main-content {
        padding: 20px;
    }
    
    .session-header {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }
    
    .session-header-actions {
        width: 100%;
        justify-content: flex-end;
    }
    
    .config-grid {
        grid-template-columns: 1fr;
    }
    
    .conversation-cards {
        grid-template-columns: 1fr;
    }
    
    .search-input {
        width: 140px;
    }
    
    .active-chat {
        height: calc(100vh - 160px);
        min-height: 400px;
    }
    
    .message-bubble {
        max-width: 85%;
    }
}