:root {
    --primary-bg: #1a1a2e;
    --secondary-bg: #16213e;
    --tertiary-bg: #0f3460;
    --primary-text: #e94560;
    --secondary-text: #dcdcdc;
    --border-color: #e94560;
    --success-color: #4CAF50;
    --disabled-color: #555;
    --modal-overlay-bg: rgba(0, 0, 0, 0.7);
    --hover-bg: #2a2a4e; 
    --user-message-bg: #0f3460; /* NUEVA VARIABLE */
    --business-message-bg: #3a3a5e; /* NUEVA VARIABLE */
}

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

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

.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    background-color: var(--secondary-bg);
    border-bottom: 1px solid var(--border-color);
}

.app-header h1 {
    color: var(--primary-text);
    font-size: 1.5rem;
}

#app-nav button {
    margin: 0 10px;
    padding: 10px 15px;
    background: none;
    border: 1px solid transparent;
    color: var(--secondary-text);
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
}

#app-nav button:hover {
    border-bottom: 1px solid var(--primary-text);
    color: var(--primary-text);
}

#app-nav button.active {
    color: var(--primary-text);
    font-weight: bold;
}


#main-content {
    display: flex;
    flex-grow: 1;
    overflow: hidden;
}

/* --- VISTA DE CHATS --- */
#view-chats {
    display: flex;
    width: 100%;
}

.sidebar {
    width: 250px;
    background-color: var(--secondary-bg);
    padding: 10px;
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.chat-container {
    display: flex;
    flex-grow: 1;
}

#chat-list-panel {
    width: 350px;
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

#phone-lines-list, #chat-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

#phone-lines-list li, #chat-list li {
    padding: 15px;
    cursor: pointer;
    border-bottom: 1px solid var(--tertiary-bg);
    transition: background-color 0.2s;
}

#phone-lines-list li:hover, #chat-list li:hover {
    background-color: var(--hover-bg);
}

#phone-lines-list li.active, #chat-list li.active {
    background-color: var(--primary-text);
    color: white;
    font-weight: bold;
}

.list-item-placeholder {
    padding: 15px;
    color: var(--disabled-color);
    text-align: center;
}

.chat-item-name {
    font-weight: bold;
    margin-bottom: 5px;
}

.chat-item-preview {
    font-size: 0.9em;
    color: var(--secondary-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}


#conversation-panel {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

#conversation-messages {
    flex-grow: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex; /* Para alinear mensajes */
    flex-direction: column; /* Para apilar mensajes */
}

/* NUEVOS ESTILOS PARA MENSAJES */
.message-bubble {
    max-width: 70%;
    padding: 10px 15px;
    border-radius: 18px;
    margin-bottom: 10px;
    line-height: 1.4;
}

.message-bubble.user {
    background-color: var(--user-message-bg);
    align-self: flex-start; /* A la izquierda */
    border-bottom-left-radius: 4px;
}

.message-bubble.business {
    background-color: var(--business-message-bg);
    align-self: flex-end; /* A la derecha */
    border-bottom-right-radius: 4px;
}

.message-timestamp {
    display: block;
    font-size: 0.75em;
    color: var(--disabled-color);
    margin-top: 5px;
    text-align: right;
}


.message-input-container {
    display: flex;
    padding: 10px;
    border-top: 1px solid var(--border-color);
}

#message-input {
    flex-grow: 1;
    padding: 10px;
    border: 1px solid var(--tertiary-bg);
    border-radius: 5px;
    background-color: var(--secondary-bg);
    color: var(--secondary-text);
}

#send-button {
    margin-left: 10px;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    background-color: var(--primary-text);
    color: white;
    cursor: pointer;
}

/* --- VISTA DE CONFIGURACIÓN --- */
#view-config {
    width: 100%;
    padding: 20px;
    display: flex;
    flex-direction: column;
}

.config-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.table-container {
    width: 100%;
    overflow-y: auto;
}

#lines-table {
    width: 100%;
    border-collapse: collapse;
}

#lines-table th, #lines-table td {
    border: 1px solid var(--tertiary-bg);
    padding: 12px;
    text-align: left;
}

#lines-table th {
    background-color: var(--secondary-bg);
    color: var(--primary-text);
}

/* --- Toggle Switch --- */
.switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

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

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

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

input:focus + .slider {
    box-shadow: 0 0 1px var(--success-color);
}

input:checked + .slider:before {
    transform: translateX(26px);
}


/* --- MODAL --- */
.modal-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--modal-overlay-bg);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background-color: var(--secondary-bg);
    padding: 30px;
    border-radius: 8px;
    width: 500px;
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 15px;
}

.form-group-wrapper {
    border-left: 3px solid var(--primary-text);
    padding-left: 15px;
    margin-top: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: var(--primary-text);
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 10px;
    box-sizing: border-box;
    background-color: var(--primary-bg);
    border: 1px solid var(--tertiary-bg);
    color: var(--secondary-text);
    border-radius: 4px;
}
.form-group input:disabled {
    background-color: var(--disabled-color);
    cursor: not-allowed;
}


.modal-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 20px;
}

/* --- BOTONES --- */
.btn-primary, .btn-secondary {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--primary-text);
    color: white;
    margin-left: 10px;
}

.btn-secondary {
    background-color: var(--disabled-color);
    color: var(--secondary-text);
}

.btn-edit {
    background-color: var(--tertiary-bg);
    color: var(--secondary-text);
    padding: 8px 12px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}


.hidden {
    display: none !important;
}