/* ============================================================
   SECCIÓN: CONVENCIONES - EXECUTIVE BUSINESS STYLE
   ============================================================ */

:root {
    --exec-navy: #1e293b;
    /* Azul Oxford (Seriedad) */
    --exec-accent: #334155;
    /* Gris Pizarra (Sofisticación) */
    --exec-platinum: #f1f5f9;
    /* Fondo Platino */
    --exec-line: #cbd5e1;
    /* Líneas de guía finas */
    --text-dark: #0f172a;
}

/* 1. Hero Section: Diseño de Alta Dirección */
.conv-hero-unique {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    padding: 50px 20px;
    border-radius: 8px;
    text-align: center;
    margin-bottom: 30px;
    color: white;
    border-right: 10px solid #94a3b8;
    /* Acento Platino */
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    position: relative;
}

.conv-hero-unique h1 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 5px;
    /* Espaciado ejecutivo */
    font-size: 2rem;
    margin: 0;
}

.conv-hero-unique p {
    font-size: 0.95rem;
    font-weight: 300;
    letter-spacing: 2px;
    color: #94a3b8;
    margin-top: 10px;
    text-transform: uppercase;
}

/* 2. Barra de Menú (Estilo Minimalista) */
.filter-toggle-btn {
    width: 100%;
    background: #0f172a !important;
    color: white !important;
    padding: 22px 30px;
    border: none;
    border-radius: 4px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 3px;
    font-size: 0.8rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* 3. Acordeón de Filtros */
.filters-content {
    max-height: 0;
    overflow: hidden;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    background: #f8fafc;
}

.filters-content.open {
    max-height: 1000px;
    padding: 30px 0;
    border-bottom: 1px solid var(--exec-line);
}

#category-filters {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
    gap: 15px;
    padding: 0 20px;
}

/* 4. Botones de Categorías "Business Badges" */
.category-filter-conv {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    background: #ffffff;
    border: 1px solid var(--exec-line);
    border-radius: 4px;
    /* Recto con toque suave */
    cursor: pointer;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--exec-navy);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
}

/* ÍCONOS: El espacio de 15px que unifica todo */
.category-filter-conv i {
    margin-right: 15px;
    font-size: 1.1rem;
    color: #64748b;
    transition: 0.3s;
}

/* ESTADO ACTIVO: Inversión de color limpia */
.category-filter-conv:hover,
.category-filter-conv.active {
    background: var(--exec-navy) !important;
    color: white !important;
    border-color: var(--exec-navy);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(15, 23, 42, 0.2);
}

.category-filter-conv:hover i,
.category-filter-conv.active i {
    color: #94a3b8;
}

/* 5. BOTÓN MAESTRO (CTA Empresarial) */
.btn-master {
    display: block;
    text-align: center;
    padding: 16px 20px;
    border-radius: 4px;
    text-decoration: none;
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 2px;
    margin-top: 15px;
    transition: all 0.4s ease;
    cursor: pointer;

    background: #0f172a !important;
    color: white !important;
    border: 1px solid #334155;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.btn-master:hover {
    background: #1e293b !important;
    letter-spacing: 3px;
    /* Efecto de expansión elegante */
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

/* 6. Tarjetas de Proveedor */
.provider-card-conv {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 4px;
    padding: 20px;
    transition: 0.4s;
}

.provider-card-conv:hover {
    border-color: var(--exec-navy);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.05);
}