/* ==========================================================
   SHARED.CSS — Patrones reutilizables cargados globalmente.
   Fuente unica para: animaciones, estados vacios, loaders,
   headers de pagina, filtros, y tablas.
   ========================================================== */

/* ====== Animaciones ====== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.fade-in {
    animation: fadeIn 0.5s ease;
}

.fa-spinner {
    animation: spin 1s linear infinite;
}

/* ====== Estado vacio ====== */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--gn-gray);
}

    .empty-state i,
    .empty-state .icono {
        font-size: 3rem;
        color: var(--gn-gray-light);
        margin-bottom: 1rem;
        display: block;
    }

    .empty-state p {
        margin: 0;
        font-size: 0.9rem;
    }

/* ====== Loader overlay ====== */
.loader-overlay {
    text-align: center;
    padding: 3rem;
    color: var(--gn-gray);
}

    .loader-overlay i {
        font-size: 2rem;
        color: var(--gn-teal);
        margin-bottom: 1rem;
    }

/* ====== Header de pagina (gradiente navy/blue) ====== */
.page-header {
    background: linear-gradient(135deg, var(--gn-navy) 0%, var(--gn-blue) 100%);
    border-radius: 16px;
    padding: 2rem 2.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 8px 24px rgba(29, 61, 111, 0.15);
    position: relative;
    overflow: hidden;
}

    .page-header::before {
        content: '';
        position: absolute;
        top: -50%;
        right: -10%;
        width: 400px;
        height: 400px;
        background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
        border-radius: 50%;
    }

    .page-header h1 {
        color: var(--gn-white);
        font-size: 2rem;
        font-weight: 700;
        margin: 0;
        position: relative;
        z-index: 1;
    }

    .page-header p {
        color: rgba(255, 255, 255, 0.85);
        margin: 0.5rem 0 0 0;
        font-size: 1.1rem;
        position: relative;
        z-index: 1;
    }

/* ====== Card de filtros ====== */
.filters-card {
    background: var(--gn-white);
    border-radius: 16px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    margin-bottom: 2rem;
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: box-shadow 0.3s ease;
}

    .filters-card:hover {
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    }

.filters-header {
    background: linear-gradient(90deg, var(--gn-navy) 0%, var(--gn-blue) 100%);
    padding: 1.25rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.filters-title {
    color: var(--gn-white);
    font-weight: 600;
    font-size: 2rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 0;
}

    .filters-title i {
        color: var(--gn-lime);
    }

.filters-body {
    padding: 2rem;
    background: linear-gradient(to bottom, var(--gn-white) 0%, var(--gn-gray-light) 100%);
}

.filter-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

/* ====== Campos de formulario ====== */
.form-field {
    display: flex;
    flex-direction: column;
}

    .form-field label {
        font-size: 1.4rem;
        font-weight: 600;
        color: var(--gn-charcoal);
        margin-bottom: 0.5rem;
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }

        .form-field label i {
            color: var(--gn-teal);
            font-size: 1.5rem;
        }

    .form-field input,
    .form-field select {
        padding: 0.75rem 1rem;
        border: 2px solid var(--gn-gray-light);
        border-radius: 10px;
        font-size: 1.4rem;
        transition: all 0.3s ease;
        background: var(--gn-white);
    }

        .form-field input:focus,
        .form-field select:focus {
            outline: none;
            border-color: var(--gn-teal);
            box-shadow: 0 0 0 3px rgba(12, 148, 158, 0.1);
        }

/* ====== Tabla con header ====== */
.table-card {
    background: var(--gn-white);
    border-radius: 16px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.table-header {
    background: linear-gradient(90deg, var(--gn-blue) 0%, var(--gn-blue-light) 100%);
    padding: 1.25rem 2rem;
    color: var(--gn-white);
    font-weight: 600;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

    .table-header i {
        color: var(--gn-gold);
    }

.table-wrapper {
    overflow-x: auto;
    background: var(--gn-white);
}

/* ====== Botones de accion ====== */
.action-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-custom {
    padding: 1rem;
    border-radius: 20px;
    font-weight: 650;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.btn-primary-custom {
    background: linear-gradient(135deg, var(--gn-teal) 0%, var(--gn-mint) 100%);
    color: var(--gn-white);
}

    .btn-primary-custom:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(12, 148, 158, 0.3);
    }

.btn-success-custom {
    background: linear-gradient(135deg, var(--gn-lime) 0%, var(--gn-mint) 100%);
    color: var(--gn-charcoal);
}

    .btn-success-custom:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(126, 203, 182, 0.3);
    }

.btn-custom:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ====== Scrollbar personalizada (tablas) ====== */
.table-wrapper::-webkit-scrollbar {
    height: 10px;
}

.table-wrapper::-webkit-scrollbar-track {
    background: var(--gn-gray-light);
    border-radius: 10px;
}

.table-wrapper::-webkit-scrollbar-thumb {
    background: var(--gn-teal);
    border-radius: 10px;
}

    .table-wrapper::-webkit-scrollbar-thumb:hover {
        background: var(--gn-blue);
    }

/* ====== Responsividad compartida ====== */
@media (max-width: 768px) {
    .page-header {
        padding: 1.5rem;
    }

        .page-header h1 {
            font-size: 1.5rem;
        }

    .filters-body {
        padding: 1.5rem;
    }

    .filter-group {
        grid-template-columns: 1fr;
    }

    .action-buttons {
        flex-direction: column;
    }

    .btn-custom {
        width: 100%;
        justify-content: center;
    }
}