:root {
    --bg-corporate: #1e1b4b;
    --bg-corporate-mid: #2e2685;
    --panel-bg: #ffffff;
    --surface-subtle: #f8fafc;
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --accent: #10b981;
    --accent-dark: #059669;
    --danger: #ef4444;
    --border: #e2e8f0;
    --border-strong: #cbd5e1;
    --gold-bg: #fffbeb;
    --gold-border: #f59e0b;
    --gold-text: #b45309;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-corporate);
    background-image: radial-gradient(circle at 50% 0%, #342cb2 0%, #1e1b4b 75%);
    font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
    color: var(--text-main);
    line-height: 1.5;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-x: hidden;
    padding: 0 0 20px 0;
}

/* ==========================================================================
   MARCA DE AGUA SUTIL "TOPTOP20" EN COLUMNAS Y ESPACIOS EN BLANCO
   ========================================================================== */
.columna-blanca {
    background-color: var(--panel-bg);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='140' viewBox='0 0 220 140'%3E%3Ctext x='50%25' y='50%25' dominant-baseline='middle' text-anchor='middle' fill='%230f172a' fill-opacity='0.028' font-family='Segoe UI, sans-serif' font-weight='900' font-size='20' letter-spacing='3' transform='rotate(-22 110 70)'%3ETOPTOP20%3C/text%3E%3C/svg%3E");
    background-repeat: repeat;
    padding: 22px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.22);
    color: var(--text-main);
}

.slot-watermark {
    background-color: #f8fafc;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='90' viewBox='0 0 180 90'%3E%3Ctext x='50%25' y='50%25' dominant-baseline='middle' text-anchor='middle' fill='%234f46e5' fill-opacity='0.045' font-family='Segoe UI, sans-serif' font-weight='800' font-size='15' letter-spacing='2' transform='rotate(-18 90 45)'%3ETOPTOP20%3C/text%3E%3C/svg%3E");
}

/* ==========================================================================
   CONTENEDORES Y ELEMENTOS DE FORMULARIO CORPORATIVO
   ========================================================================== */
.contenedor-central {
    max-width: 1020px;
    margin: 20px auto 0 auto;
    padding: 0 15px;
    width: 100%;
}

.contenedor-columnas {
    max-width: 1480px;
    margin: 28px auto;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
    padding: 0 15px;
}

.input-box {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-strong);
    border-radius: 6px;
    box-sizing: border-box;
    font-size: 0.95rem;
    outline: none;
    background: var(--surface-subtle);
    color: var(--text-main);
    transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

.input-box:focus {
    border-color: var(--primary);
    background: #ffffff;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
}

#ad-slogan-editor:empty:before {
    content: attr(data-placeholder);
    color: #94a3b8;
    pointer-events: none;
}

.tool-btn {
    padding: 4px 8px;
    border: 1px solid var(--border-strong);
    border-radius: 4px;
    background: white;
    cursor: pointer;
    font-size: 0.8rem;
    color: var(--text-main);
    transition: 0.15s;
}

.tool-btn:hover {
    background: #eef2ff;
    border-color: var(--primary);
}

/* ==========================================================================
   ACORDEÓN DESPLEGABLE (IA + VISTA PREVIA EN VIVO)
   ========================================================================== */
.btn-acordeon-herramientas {
    width: 100%;
    background: #f8fafc;
    color: #1e293b;
    border: 1px solid #cbd5e1;
    border-left: 4px solid var(--primary);
    padding: 12px 16px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.92rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    transition: background 0.2s, border-color 0.2s, box-shadow 0.2s;
    margin-bottom: 18px;
}

.btn-acordeon-herramientas:hover {
    background: #f1f5f9;
    border-color: #94a3b8;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.06);
}

.panel-acordeon-contenido {
    display: none;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 18px;
    margin-bottom: 22px;
}

/* ==========================================================================
   BOTONES Y COMPONENTES DE TARJETA
   ========================================================================== */
.badge-nodo {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: #f1f5f9;
    color: #475569;
    border: 1px solid #cbd5e1;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.72rem;
    font-family: monospace;
    font-weight: bold;
    cursor: pointer;
    transition: 0.2s;
}

.badge-nodo:hover {
    background: #e0e7ff;
    color: #342cb2;
    border-color: #818cf8;
}

.btn-principal {
    background: var(--primary);
    color: white;
    padding: 14px 24px;
    width: 100%;
    max-width: 340px;
    margin: 0 auto;
    border-radius: 8px;
    font-weight: 800;
    font-size: 1.05rem;
    border: none;
    cursor: pointer;
    display: block;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
    transition: transform 0.2s, background 0.2s, box-shadow 0.2s;
}

.btn-principal:hover:not(:disabled) {
    transform: translateY(-1px);
    background: var(--primary-hover);
    box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
}

.btn-upload {
    background: white;
    border: 1px solid var(--border-strong);
    color: var(--text-main);
    padding: 7px 12px;
    border-radius: 6px;
    font-weight: 700;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: 0.2s;
}

.btn-upload:hover {
    background: #f1f5f9;
    border-color: var(--primary);
    color: var(--primary);
}

.btn-guia-alargado {
    background: rgba(15, 23, 42, 0.55);
    color: #fde047;
    border: 1px solid rgba(251, 191, 36, 0.65);
    padding: 7px 24px;
    border-radius: 25px;
    font-weight: 700;
    font-size: 0.86rem;
    letter-spacing: 0.2px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    transition: all 0.2s;
}

.btn-guia-alargado:hover {
    background: rgba(15, 23, 42, 0.85);
    border-color: #fbbf24;
    transform: translateY(-1px);
}

/* BOTONES FLOTANTES DE SCROLL */
.btn-scroll-flotante {
    background: #0f172a;
    color: #fcd34d;
    border: 1.5px solid #fbbf24;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    font-size: 1.25rem;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s, background 0.2s;
}

.btn-scroll-flotante:hover {
    transform: scale(1.08);
    background: #1e293b;
}

/* ENLACES UNIFICADOS DEL PIE DE PÁGINA */
.footer-link-corporativo {
    color: #fcd34d;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.95rem;
    transition: opacity 0.2s;
    cursor: pointer;
}

.footer-link-corporativo:hover {
    opacity: 0.85;
    text-decoration: underline;
}

/* ANIMACIONES SUTILES Y ELEGANTES */
@keyframes parpadeoVictoria {
    0% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.6); }
    50% { box-shadow: 0 0 20px 8px rgba(245, 158, 11, 0); }
    100% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0); }
}

.sorpaso-efecto {
    animation: parpadeoVictoria 1.2s ease-out;
    border: 2px solid #f59e0b !important;
}

@keyframes parpadeo-chat {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.18); opacity: 0.85; }
}

.notif-activa {
    display: inline-block !important;
    animation: parpadeo-chat 1.5s infinite;
}

.promo-thumb {
    width: 50px !important;
    height: 50px !important;
    min-width: 50px !important;
    min-height: 50px !important;
    border-radius: 8px !important;
    object-fit: contain !important;
    background: #ffffff !important;
    flex-shrink: 0 !important;
    display: block !important;
}

.modal-body::-webkit-scrollbar { width: 6px; }
.modal-body::-webkit-scrollbar-track { background: transparent; }
.modal-body::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 10px; }

/* ADAPTACIÓN MÓVIL */
@media (max-width: 850px) {
    .contenedor-columnas {
        display: flex !important;
        flex-direction: column !important;
    }
    .col-derecha { order: 1 !important; }
    .col-izquierda { order: 2 !important; }
    .col-centro { order: 3 !important; }
    #ad-form > div[style*="grid-template-columns"] {
        grid-template-columns: 1fr !important;
        gap: 14px !important;
    }
    .btn-principal {
        max-width: 100% !important;
        width: 100% !important;
    }
    .mobile-header-fix {
        display: grid !important;
        grid-template-columns: 1fr 1fr !important;
        gap: 10px !important;
        padding: 12px 0 !important;
    }
    .mobile-header-fix > div:first-child {
        grid-column: 1 / 2 !important;
        justify-content: flex-start !important;
    }
    .mobile-header-fix > div:last-child {
        grid-column: 2 / 3 !important;
        text-align: right !important;
    }
    .mobile-header-fix > div:nth-child(2) {
        grid-column: 1 / 3 !important;
        justify-content: center !important;
        margin-top: 4px;
    }
    #chat-widget {
        width: 300px !important;
        right: 12px !important;
        bottom: 12px !important;
    }
}

/* ==========================================================================
   CORRECCIÓN RESPONSIVE MÓVIL: ACORDEÓN IA Y MÁRGENES GENERALES
   ========================================================================== */
@media (max-width: 850px) {
    /* Convierte el grid de la IA y Vista Previa en una sola columna vertical */
    .grid-ia-preview {
        grid-template-columns: 1fr !important;
        gap: 16px !important;
    }
    
    /* Ajusta los márgenes laterales de la caja central para que no rocen los bordes ni bailen */
    .contenedor-central {
        padding: 0 8px !important;
    }
    
    main {
        padding: 16px 12px !important;
    }
    
    /* Evita desbordamientos en las tarjetas del escaparate */
    .columna-blanca {
        padding: 14px !important;
    }
}