/* =========================================================
   SaaS SMS - HOJA DE ESTILOS MAESTRA UNIFICADA (css/tusms.css)
   Soporte Dual: Modo Oscuro (:root) y Modo Claro (body.light-mode)
   ========================================================= */

/* 1. PALETA MODO OSCURO (Por defecto) */
:root {
    --bg-color: #121212;
    --surface-color: #1e1e1e;
    --surface-hover: #262626;
    --text-primary: #e0e0e0;
    --text-secondary: #aaaaaa;
    --accent-blue: #4db8ff;
    --accent-blue-hover: #2ea8ff;
    --input-bg: #161b22;
    --input-focus-bg: #1e293b;
    --border-color: #333333;
    --subtle-bg: #262626;
    --error-color: #e74c3c;
    --error-bg: rgba(231, 76, 60, 0.15);
    --container-shadow: 0 10px 25px rgba(0, 0, 0, 0.55);
    --card-shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
    --bubble-sent-bg: #1e3a5f;
    --bubble-sent-border: #2563eb;
}

/* 2. PALETA MODO CLARO (Estética Corporativa de la captura) */
body.light-mode {
    --bg-color: #f8fafc;           /* Fondo general claro */
    --surface-color: #ffffff;      /* Blanco puro para contenedores */
    --surface-hover: #f1f5f9;      /* Gris suave al pasar el ratón */
    --text-primary: #1e293b;       /* Texto principal (Slate oscuro) */
    --text-secondary: #64748b;     /* Etiquetas y textos secundarios */
    --accent-blue: #4db8ff;        /* Azul corporativo principal */
    --accent-blue-hover: #2ea8ff;  /* Azul al pasar el ratón */
    --input-bg: #eef4fb;           /* Fondo suave de inputs (estilo login) */
    --input-focus-bg: #ffffff;     /* Fondo blanco al enfocar */
    --border-color: #dbe4f0;       /* Bordes suaves */
    --subtle-bg: #f1f5f9;          /* Fondos secundarios */
    --error-color: #e74c3c;
    --error-bg: rgba(231, 76, 60, 0.1);
    --container-shadow: 0 10px 25px rgba(0, 0, 0, 0.18);
    --card-shadow: 0 8px 20px rgba(0, 0, 0, 0.10);
    --bubble-sent-bg: #e0f2fe;
    --bubble-sent-border: #bae6fd;
}

body { 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; 
    background-color: var(--bg-color); 
    color: var(--text-primary); 
    margin: 0; 
    padding: 20px; 
    padding-bottom: 80px; 
    transition: background-color 0.2s ease, color 0.2s ease;
}

/* =========================================================
   PANTALLA DE LOGIN
   ========================================================= */
.login-wrapper { 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    min-height: 90vh; 
}

.login-box { 
    background-color: var(--surface-color); 
    border: 1px solid var(--border-color); 
    border-radius: 12px; 
    padding: 40px; 
    width: 100%; 
    max-width: 400px; 
    box-shadow: var(--container-shadow); 
    text-align: center; 
    border-top: 4px solid var(--accent-blue); 
}

.login-box .logo-img { 
    max-width: 220px; 
    margin-bottom: 25px; 
}

.login-box h2, .login-title { 
    margin: 0 0 20px 0; 
    font-size: 20px; 
    color: var(--accent-blue); 
}

/* =========================================================
   CABECERAS Y CONTENEDORES PRINCIPALES
   ========================================================= */
.header, .top-bar { 
    border-bottom: 2px solid var(--border-color); 
    padding-bottom: 15px; 
    margin-bottom: 30px; 
}

.top-bar { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    background-color: var(--surface-color); 
    padding: 20px 30px; 
    border-radius: 12px; 
    border: 1px solid var(--border-color);
    border-top: 4px solid var(--accent-blue);
    box-shadow: var(--container-shadow);
    flex-wrap: wrap;
    gap: 15px;
}

.header-flex { 
    display: flex; 
    flex-wrap: wrap; 
    justify-content: space-between; 
    align-items: center; 
    gap: 15px; 
}

.header h1, .top-bar h1 { 
    margin: 0; 
    color: var(--accent-blue); 
    font-size: clamp(20px, 4vw, 26px); 
}

.header p, .top-bar p { 
    color: var(--text-secondary); 
    font-size: 14px; 
    margin-top: 6px; 
}

.saldo-box { text-align: right; }
.saldo-box .monto { font-size: 24px; font-weight: bold; color: #10b981; }
.saldo-box .etiqueta { font-size: 12px; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 1px; }

/* =========================================================
   CUADRÍCULA (GRID) Y TARJETAS UNIFICADAS
   ========================================================= */
.grid { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); 
    gap: 22px; 
    max-width: 1200px; 
    margin: 0 auto; 
}

.card { 
    background-color: var(--surface-color); 
    border: 1px solid var(--border-color);
    border-radius: 12px; 
    padding: 25px; 
    text-decoration: none; 
    color: var(--text-primary); 
    border-top: 4px solid var(--accent-blue); 
    transition: transform 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease; 
    display: flex; 
    flex-direction: column; 
    box-shadow: var(--card-shadow); 
}

.card:hover { 
    transform: translateY(-5px); 
    background-color: var(--surface-hover); 
    box-shadow: var(--container-shadow); 
}

.card.flota { border-top-color: #2ecc71; }
.card.clientes { border-top-color: var(--accent-blue); }
.card.reportes, .card.card-reportes { border-top-color: #38bdf8; }
.card.config { border-top-color: #f39c12; }
.card.card-plantillas { border-top-color: var(--accent-blue); }
.card.card-lanzador { border-top-color: #0284c7; }
.card.card-inactiva { border-top-color: var(--border-color); opacity: 0.65; cursor: not-allowed; }

.card h2 { margin: 0 0 10px 0; font-size: 20px; color: var(--text-primary); display: flex; align-items: center; gap: 10px; }
.card p { margin: 0; color: var(--text-secondary); font-size: 14px; line-height: 1.5; flex-grow: 1; }

/* =========================================================
   INPUTS UNIFICADOS, FORMULARIOS Y TEXTAREAS
   ========================================================= */
.form-group { display: flex; flex-direction: column; margin-bottom: 18px; text-align: left; }
.form-group label { font-size: 13px; color: var(--text-secondary); margin-bottom: 8px; font-weight: bold; }

input[type="text"], 
input[type="password"], 
input[type="email"], 
input[type="number"], 
input[type="date"],
textarea, 
select { 
    width: 100%; 
    box-sizing: border-box; 
    padding: 12px; 
    background-color: var(--input-bg); 
    border: 1px solid var(--border-color); 
    color: var(--text-primary); 
    border-radius: 6px; 
    font-size: 15px; 
    outline: none; 
    transition: border-color 0.2s, box-shadow 0.2s, background-color 0.2s; 
}

input:focus, textarea:focus, select:focus { 
    background-color: var(--input-focus-bg);
    border-color: var(--accent-blue); 
    box-shadow: 0 0 0 3px rgba(77, 184, 255, 0.2); 
}

.caja-codigo { font-family: 'Consolas', monospace; font-size: 18px !important; letter-spacing: 2px; text-transform: uppercase; text-align: center; }
.caja-texto-sms { font-family: 'Consolas', monospace; resize: vertical; min-height: 90px; }

.password-container { position: relative; width: 100%; }
.password-container input { padding-right: 45px; }
.toggle-pwd { position: absolute; right: 12px; top: 50%; transform: translateY(-50%); cursor: pointer; color: var(--text-secondary); font-size: 18px; user-select: none; }
.toggle-pwd:hover { color: var(--accent-blue); }

/* =========================================================
   BOTONES Y ALERTAS
   ========================================================= */
.btn { padding: 8px 14px; border: none; border-radius: 6px; cursor: pointer; font-weight: bold; font-size: 13px; transition: 0.2s; display: inline-flex; align-items: center; justify-content: center; gap: 6px; text-decoration: none; }

.btn-diario { 
    background-color: var(--accent-blue); 
    color: #ffffff; 
    border: 1px solid var(--accent-blue); 
    width: 100%; 
    margin-bottom: 5px; 
    padding: 12px; 
    border-radius: 6px; 
    font-size: 16px; 
    font-weight: bold; 
    cursor: pointer; 
    transition: 0.2s; 
    box-shadow: 0 4px 10px rgba(77, 184, 255, 0.3);
}
.btn-diario:hover { 
    background-color: var(--accent-blue-hover); 
    border-color: var(--accent-blue-hover);
    color: #ffffff; 
}

/* Botón interruptor de Tema Claro / Oscuro */
#btn-tema {
    background-color: var(--surface-color);
    color: var(--accent-blue);
    border: 1px solid var(--accent-blue);
    box-shadow: none;
}
#btn-tema:hover {
    background-color: var(--accent-blue);
    color: #ffffff;
}

.btn-secundario-salir {
    display: inline-block;
    margin-top: 12px;
    padding: 9px 16px;
    background-color: var(--subtle-bg);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: 0.2s;
}
.btn-secundario-salir:hover {
    background-color: var(--border-color);
    color: var(--text-primary);
}

.btn-salir-top {
    background-color: rgba(239, 68, 68, 0.12);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.35);
    padding: 9px 16px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: bold;
    text-decoration: none;
    transition: 0.2s;
}
.btn-salir-top:hover {
    background-color: #ef4444;
    color: #ffffff;
}

.btn-cancelar { background-color: var(--subtle-bg) !important; color: var(--text-secondary) !important; border: 1px solid var(--border-color) !important; } 
.btn-cancelar:hover { background-color: var(--border-color) !important; color: var(--text-primary) !important; }

.btn-siguiente { background-color: var(--accent-blue); color: white; padding: 12px 20px; border: none; border-radius: 6px; font-weight: bold; cursor: pointer; width: 100%; font-size: 16px; transition: 0.2s; }
.btn-siguiente:hover { background-color: var(--accent-blue-hover); }

.btn-flotante { position: fixed; bottom: 25px; right: 25px; background-color: var(--accent-blue); color: #ffffff; border-radius: 50px; padding: 12px 20px; font-size: 14px; font-weight: bold; text-decoration: none; box-shadow: var(--container-shadow); transition: all 0.3s ease; z-index: 1000; display: flex; align-items: center; gap: 8px; }
.btn-flotante:hover { background-color: var(--accent-blue-hover); transform: translateY(-3px); }

.error-message, .alert-error { background-color: var(--error-bg); color: var(--error-color); padding: 12px; border-radius: 6px; border: 1px solid var(--error-color); margin-bottom: 20px; font-size: 14px; text-align: left; font-weight: bold; }
.alert-success { background-color: rgba(46, 204, 113, 0.15); color: #16a34a; padding: 15px; border-radius: 6px; border: 1px solid #2ecc71; margin-bottom: 20px; text-align: left; }
.footer-text { margin-top: 25px; font-size: 12px; color: var(--text-secondary); }

/* BADGES */
.badge { display: inline-block; padding: 4px 10px; background: var(--subtle-bg); color: var(--text-secondary); border-radius: 4px; font-size: 11px; margin-top: 15px; align-self: flex-start; font-weight: bold; }
.badge-activo { background: rgba(77, 184, 255, 0.15); color: var(--accent-blue); border: 1px solid rgba(77, 184, 255, 0.3); }
.badge-codigo { background-color: rgba(77, 184, 255, 0.15); color: var(--accent-blue); padding: 4px 8px; border-radius: 4px; font-family: 'Consolas', monospace; font-weight: bold; border: 1px solid var(--accent-blue); font-size: 13px; }
.badge-var { background-color: rgba(77, 184, 255, 0.15); color: var(--accent-blue); padding: 5px 10px; border-radius: 4px; font-family: monospace; font-weight: bold; }
.badge-success { background-color: rgba(46, 204, 113, 0.15); color: #16a34a; padding: 5px 10px; border-radius: 4px; font-size: 12px; font-weight: bold; }

/* =========================================================
   PORTAL DE RESPUESTA SMS (chat.php) UNIFICADO
   ========================================================= */
body.chat-body {
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    box-sizing: border-box;
}

.chat-container {
    background: var(--surface-color);
    width: 100%;
    max-width: 600px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    border-top: 4px solid var(--accent-blue);
    box-shadow: var(--container-shadow);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.chat-header {
    background: var(--accent-blue);
    color: #ffffff;
    padding: 15px 20px;
    text-align: center;
    font-size: 18px;
    font-weight: bold;
    box-shadow: 0 2px 6px rgba(0,0,0,0.08);
    z-index: 10;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
}

.chat-logo {
    max-height: 42px;
    width: auto;
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
}

/* Fija el botón al extremo derecho del encabezado sin importar si usa #btn-tema o .btn-diario */
.chat-header #btn-tema,
.chat-header .chat-theme-btn {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: auto !important;
    margin: 0 !important;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: bold;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow: none;
    cursor: pointer;
    transition: 0.2s;
    white-space: nowrap;
}

.chat-header #btn-tema:hover,
.chat-header .chat-theme-btn:hover {
    background: #ffffff;
    color: #0284c7;
    border-color: #ffffff;
}

.chat-history {
    padding: 20px;
    overflow-y: auto;
    flex-grow: 1;
    background: var(--bg-color);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.bubble {
    max-width: 80%;
    padding: 12px 16px;
    border-radius: 14px;
    font-size: 14px;
    line-height: 1.4;
    position: relative;
}

.bubble.enviado {
    background: var(--bubble-sent-bg);
    color: var(--text-primary);
    align-self: flex-end;
    border-top-right-radius: 2px;
    border: 1px solid var(--bubble-sent-border);
    box-shadow: 0 2px 4px rgba(0,0,0,0.04);
}

.bubble.recibido {
    background: var(--surface-color);
    color: var(--text-primary);
    align-self: flex-start;
    border-top-left-radius: 2px;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 4px rgba(0,0,0,0.04);
}

.bubble-date {
    display: block;
    font-size: 10px;
    color: var(--text-secondary);
    margin-top: 5px;
    text-align: right;
}

.chat-form {
    padding: 15px;
    background: var(--surface-color);
    display: flex;
    gap: 10px;
    border-top: 1px solid var(--border-color);
    align-items: center;
}

.chat-form textarea {
    flex-grow: 1;
    border-radius: 20px;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    padding: 12px 16px;
    resize: none;
    font-family: inherit;
    font-size: 14px;
    outline: none;
}

.chat-form button {
    background: var(--accent-blue);
    color: #ffffff;
    border: none;
    border-radius: 50%;
    width: 45px;
    height: 45px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: 0.2s;
    flex-shrink: 0;
    box-shadow: 0 4px 10px rgba(77, 184, 255, 0.3);
}

.chat-form button:hover {
    background: var(--accent-blue-hover);
}

.message-box {
    padding: 40px 20px;
    text-align: center;
    background: var(--surface-color);
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-footer {
    background: var(--subtle-bg);
    color: var(--text-secondary);
    text-align: center;
    font-size: 11px;
    padding: 8px 10px;
    border-top: 1px solid var(--border-color);
    flex-shrink: 0;
}

/* =========================================================
   GESTOR DE PLANTILLAS, TABLAS Y LANZADOR
   ========================================================= */
.variables-toolbar { background-color: var(--surface-color); padding: 15px; border: 1px solid var(--border-color); border-bottom: none; border-radius: 6px 6px 0 0; display: flex; flex-direction: column; gap: 10px; }
.variables-input-group { display: flex; gap: 10px; align-items: center; width: 100%; flex-wrap: wrap; }
.input-variable { padding: 8px 10px; font-size: 13px; border-radius: 4px; border: 1px solid var(--border-color); background-color: var(--input-bg); color: var(--text-primary); width: 200px; }
.btn-var { background-color: var(--subtle-bg); color: var(--accent-blue); border: 1px solid var(--border-color); padding: 6px 12px; border-radius: 4px; cursor: pointer; font-size: 12px; font-weight: bold; transition: 0.2s; }
.btn-var:hover { background-color: var(--accent-blue); color: #ffffff; }

.mensaje-secuencia-item { background-color: var(--bg-color); border: 1px solid var(--border-color); border-top: none; padding: 15px; position: relative; }
.mensaje-secuencia-item:last-child { border-radius: 0 0 6px 6px; border-bottom: 1px solid var(--border-color); }
.mensaje-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.mensaje-header .titulo-sms { font-size: 13px; font-weight: bold; color: var(--accent-blue); text-transform: uppercase; }

.contador-box { text-align: right; font-size: 12px; color: var(--text-secondary); margin-top: 5px; font-weight: bold; }
.contador-box span { color: var(--accent-blue); font-size: 14px; }
.limite-excedido { color: var(--error-color) !important; }

.btn-accion { text-decoration: none; font-weight: bold; font-size: 13px; margin-right: 10px; cursor: pointer; }
.btn-editar { color: #f39c12; } .btn-editar:hover { text-decoration: underline; color: #e67e22; }
.btn-eliminar { color: #e74c3c; background: none; border: none; padding: 0; } .btn-eliminar:hover { text-decoration: underline; color: #c0392b; }
.btn-agregar-sms { background-color: rgba(77, 184, 255, 0.1); color: var(--accent-blue); border: 1px dashed var(--accent-blue); padding: 10px; width: 100%; border-radius: 6px; margin-top: 10px; cursor: pointer; font-weight: bold; transition: 0.2s; }
.btn-agregar-sms:hover { background-color: rgba(77, 184, 255, 0.2); border-style: solid; }

.tabs-container { display: flex; gap: 10px; margin-bottom: 20px; border-bottom: 2px solid var(--border-color); padding-bottom: 0; flex-wrap: wrap; }
.tab-btn { flex: 1; padding: 15px; background-color: transparent; border: none; color: var(--text-secondary); cursor: pointer; font-size: 15px; font-weight: bold; transition: 0.3s; border-bottom: 3px solid transparent; white-space: nowrap; }
.tab-btn:hover { color: var(--text-primary); background-color: rgba(77, 184, 255, 0.08); }
.tab-btn.active { color: var(--accent-blue); border-bottom: 3px solid var(--accent-blue); }
.tab-content { display: none; }
.tab-content.block { display: block; animation: fadeIn 0.3s ease-in-out; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.table-responsive { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: 8px; }
table { width: 100%; min-width: 800px; border-collapse: collapse; background-color: transparent; }
th, td { padding: 12px 15px; text-align: left; border-bottom: 1px solid var(--border-color); }
th { color: var(--text-secondary); font-size: 13px; text-transform: uppercase; white-space: nowrap; }
td { font-size: 14px; }

.mapping-box { background-color: var(--surface-color); padding: 15px; border-radius: 6px; border: 1px solid var(--border-color); margin-bottom: 15px; }
.mapping-row { display: flex; justify-content: space-between; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--border-color); flex-wrap: wrap; gap: 10px; }
.mapping-row:last-child { border-bottom: none; }

.terminal-box { background-color: #0f172a; padding: 15px; border-radius: 6px; border: 1px solid #1e293b; font-family: 'Consolas', monospace; font-size: 14px; overflow-x: auto; box-shadow: inset 0 0 10px rgba(0,0,0,0.6); }
.terminal-header { display: flex; gap: 8px; margin-bottom: 10px; border-bottom: 1px solid #334155; padding-bottom: 8px; }
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot-red { background-color: #ff5f56; } .dot-yellow { background-color: #ffbd2e; } .dot-green { background-color: #27c93f; }
.terminal-line { margin-bottom: 4px; display: block; word-break: break-all; border-left: 3px solid transparent; padding-left: 8px; }
.t-num { color: #2ecc71; font-weight: bold; }
.t-comma { color: #f1c40f; font-weight: bold; }
.t-msg { color: #ecf0f1; }
.t-var { color: #e67e22; font-weight: bold; }
.t-code { color: #38bdf8; font-size: 11px; margin-right: 5px; background: rgba(56,189,248,0.2); padding: 2px 4px; border-radius: 3px; }
.t-cost { font-size: 11px; background: #334155; padding: 2px 6px; border-radius: 3px; color: #fff; margin-left: 8px; display: inline-block; }
.t-cost-alert { background: #e74c3c; font-weight: bold; }

.resumen-factura { display: flex; flex-wrap: wrap; gap: 20px; margin-bottom: 20px; }
.box-dato { flex: 1; min-width: 200px; background: var(--surface-color); border: 1px solid var(--border-color); padding: 20px; border-radius: 8px; text-align: center; box-shadow: var(--card-shadow); }
.box-dato h4 { margin: 0 0 10px 0; color: var(--text-secondary); font-size: 12px; text-transform: uppercase; }
.box-dato .numero { font-size: 32px; font-weight: bold; color: var(--accent-blue); margin: 0; }
.caja-errores { background: var(--error-bg); border-left: 4px solid var(--error-color); padding: 15px; margin-bottom: 20px; border-radius: 0 6px 6px 0; }
.lista-errores { margin: 10px 0 0 0; padding-left: 20px; color: var(--error-color); font-size: 13px; font-family: monospace; max-height: 150px; overflow-y: auto; }

@media (max-width: 600px) {
    body { padding: 10px; padding-bottom: 80px; }
    .grid { gap: 15px; }
    .header-flex, .top-bar { flex-direction: column; align-items: flex-start; }
    .chat-logo { max-height: 32px; left: 10px; }
    .chat-header { font-size: 15px; padding: 12px 10px; }
}