/* ==========================================================================
   FACTURACIÓN PAGE — Estilos adicionales
   ========================================================================== */

.nav-always-visible { display: block !important; }

/* Page Layout */
.fact-page {
    padding: 6rem 0 4rem;
    min-height: calc(100vh - 80px);
    background: linear-gradient(170deg, var(--gray-50) 0%, var(--white) 50%, var(--gray-50) 100%);
}

.fact-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 2rem;
}
.fact-header h1 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 0.75rem;
}
.fact-desc {
    color: var(--gray-500); font-size: 1rem;
}

/* Alerts */
.fact-alerts {
    max-width: 800px;
    margin: 0 auto 2.5rem;
    display: flex; flex-direction: column; gap: 0.75rem;
}
.fact-alert {
    display: flex; align-items: flex-start; gap: 0.75rem;
    padding: 0.875rem 1rem;
    border-radius: var(--radius-lg);
    font-size: 0.8125rem;
    line-height: 1.5;
}
.alert-warning {
    background: #FEF3C7;
    border: 1px solid #FCD34D;
    color: #92400E;
}
.alert-info {
    background: var(--teal-50);
    border: 1px solid var(--teal-100);
    color: var(--teal-700);
}
.alert-icon {
    flex-shrink: 0;
    margin-top: 1px;
}
.alert-warning .alert-icon { color: #D97706; }
.alert-info .alert-icon { color: var(--teal); }

/* Grid */
.fact-grid {
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: 2.5rem;
    align-items: start;
    max-width: 1000px;
    margin: 0 auto;
}

/* Form */
.fact-form {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
}
.form-section-title {
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--gray-100);
}
.form-section-title:not(:first-child) {
    margin-top: 1.5rem;
}
.form-section-title h3 {
    font-size: 0.9375rem;
    color: var(--gray-800);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}
.input-uppercase { text-transform: uppercase; }

/* Sidebar */
.fact-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    position: sticky;
    top: 90px;
}
.fact-steps {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
}
.fact-steps h3 {
    font-size: 1rem;
    margin-bottom: 1.25rem;
    color: var(--gray-900);
}
.step-item {
    display: flex; gap: 0.75rem;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--gray-100);
}
.step-item:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.step-num {
    width: 32px; height: 32px; border-radius: 50%;
    background: var(--teal);
    color: var(--white);
    font-size: 0.75rem; font-weight: 800;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.step-item strong { font-size: 0.8125rem; color: var(--gray-900); display: block; margin-bottom: 0.15rem; }
.step-item p { font-size: 0.75rem; color: var(--gray-500); margin: 0; }

.fact-help {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: 1.25rem;
}
.fact-help h4 { font-size: 0.875rem; color: var(--gray-900); margin-bottom: 0.35rem; }
.fact-help p { font-size: 0.75rem; color: var(--gray-500); margin-bottom: 0.75rem; }
.fact-wa-btn { width: 100%; justify-content: center; font-size: 0.8125rem; }

/* Responsive */
@media (max-width: 768px) {
    .fact-grid { grid-template-columns: 1fr; }
    .fact-sidebar { position: static; }
    .fact-form { padding: 1.25rem; }
    .fact-page { padding: 5rem 0 2.5rem; }
}