/* Layout principal */
.ni-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 1.5rem;
    align-items: start;
    margin-top: 2rem;
}
@media (max-width: 900px) {
    .ni-layout { grid-template-columns: 1fr; }
}

/* Sidebar */
.ni-sidebar {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    position: sticky;
    top: 80px;
}
.ni-sidebar h3 {
    font-size: 0.78rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 600;
    margin-bottom: 0.6rem;
}

.ni-nav {
    list-style: none;
    margin-bottom: 1.25rem;
}
.ni-nav-card {
    display: flex; align-items: center; gap: 0.6rem;
    padding: 0.55rem 0.7rem;
    border-radius: var(--radius-xs);
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 0.83rem;
    margin-bottom: 4px;
    transition: all var(--t);
    border: 1px solid transparent;
}
.ni-nav-card:hover {
    background: rgba(255,255,255,0.04);
    color: var(--text);
}
.ni-nav-card.active {
    background: var(--accent-soft);
    color: var(--accent);
    font-weight: 600;
    border-color: rgba(23,141,154,0.3);
}
.ni-nav-num {
    flex-shrink: 0;
    width: 22px; height: 22px;
    border-radius: 50%;
    display: inline-flex; align-items: center; justify-content: center;
    background: rgba(255,255,255,0.06);
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--text-muted);
}
.ni-nav-card.active .ni-nav-num {
    background: var(--accent);
    color: #fff;
}
.ni-nav-status {
    flex-shrink: 0;
    width: 9px; height: 9px;
    border-radius: 50%;
    border: 1.5px solid var(--text-muted);
    background: transparent;
    margin-left: auto;
}
.ni-nav-status.partial {
    background: linear-gradient(90deg, var(--yellow) 50%, transparent 50%);
    border-color: var(--yellow);
}
.ni-nav-status.full {
    background: var(--green);
    border-color: var(--green);
}

.ni-progress-info {
    color: var(--text-muted);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}
.ni-progress-bar {
    height: 6px;
    background: rgba(255,255,255,0.05);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 1.25rem;
}
.ni-progress-fill {
    height: 100%;
    background: var(--accent);
    transition: width var(--t);
}

.ni-side-actions { display: flex; flex-direction: column; gap: 0.4rem; }
.ni-side-btn {
    display: flex; align-items: center; gap: 0.45rem;
    padding: 0.55rem 0.75rem;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: var(--radius-xs);
    font-family: inherit;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all var(--t);
    text-align: left;
}
.ni-side-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-soft);
}
.ni-side-btn.primary {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
    font-weight: 600;
}
.ni-side-btn.primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: white; }
.ni-side-btn.danger:hover { color: var(--red); border-color: rgba(239,68,68,0.4); background: rgba(239,68,68,0.06); }
.ni-side-btn svg { width: 14px; height: 14px; flex-shrink: 0; }

.ni-help-line {
    color: var(--text-muted);
    font-size: 0.74rem;
    margin-top: 0.6rem;
    font-style: italic;
    line-height: 1.45;
}

/* Conteúdo principal */
.ni-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
}
.ni-section-title {
    font-size: 1.4rem; font-weight: 700;
    margin-bottom: 0.4rem;
    letter-spacing: -0.02em;
}
.ni-section-help {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
}

.ni-field { margin-bottom: 1.25rem; }
.ni-field > label {
    display: block;
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
    font-weight: 500;
}
.ni-input, .ni-textarea, .ni-select {
    width: 100%;
    padding: 0.65rem 0.9rem;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: var(--radius-xs);
    color: var(--text);
    font-family: inherit;
    font-size: 0.9rem;
    outline: none;
    transition: border-color var(--t);
}
.ni-input:focus, .ni-textarea:focus, .ni-select:focus {
    border-color: var(--accent);
}
.ni-textarea { min-height: 100px; resize: vertical; line-height: 1.5; }
.ni-select option { background: #1a1a1a; color: var(--text); padding: 0.4rem; }

.ni-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}
.ni-row-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1rem;
}
@media (max-width: 600px) {
    .ni-row, .ni-row-3 { grid-template-columns: 1fr; }
}

/* Pílulas (radios estilizadas) */
.ni-pills {
    display: flex; flex-wrap: wrap; gap: 0.5rem;
    margin-top: 0.4rem;
}
.ni-pill {
    display: inline-flex; align-items: center; gap: 0.4rem;
    padding: 0.4rem 1rem;
    border: 1px solid var(--border);
    border-radius: 50px;
    cursor: pointer;
    font-size: 0.83rem;
    transition: all var(--t);
    background: rgba(255,255,255,0.02);
    color: var(--text-secondary);
}
.ni-pill:hover { border-color: var(--border-hover); }
.ni-pill input { display: none; }
.ni-pill.active {
    border-color: var(--accent);
    background: var(--accent-soft);
    color: var(--accent);
    font-weight: 600;
}

/* Checkbox grid */
.ni-checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 0.4rem 0.6rem;
}
.ni-checkbox {
    display: flex; align-items: center; gap: 0.5rem;
    padding: 0.55rem 0.8rem;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius-xs);
    cursor: pointer;
    font-size: 0.85rem;
    transition: all var(--t);
    color: var(--text-secondary);
    user-select: none;
}
.ni-checkbox:hover { border-color: var(--border-hover); color: var(--text); }
.ni-checkbox.checked {
    border-color: var(--accent);
    background: var(--accent-soft);
    color: var(--accent);
    font-weight: 600;
}
.ni-checkbox input { display: none; }
.ni-checkbox.sensitive {
    border-color: rgba(240, 98, 146, 0.3);
}
.ni-checkbox.sensitive.checked {
    border-color: var(--hl-pink);
    background: rgba(240, 98, 146, 0.1);
    color: var(--hl-pink);
}

/* Linha de checkbox simples (ex: declaração) */
.ni-checkbox-inline {
    display: flex; align-items: flex-start; gap: 0.6rem;
    padding: 0.75rem 1rem;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius-xs);
    cursor: pointer;
    font-size: 0.88rem;
    transition: all var(--t);
}
.ni-checkbox-inline:hover { border-color: var(--border-hover); }
.ni-checkbox-inline.checked {
    border-color: var(--green);
    background: rgba(34,197,94,0.08);
    color: var(--green);
    font-weight: 600;
}
.ni-checkbox-inline input { accent-color: var(--accent); margin-top: 3px; }

/* Alertas / boxes informativos */
.ni-alert {
    margin: 0.75rem 0 1rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-xs);
    font-size: 0.85rem;
    line-height: 1.5;
    display: flex; gap: 0.6rem;
    align-items: flex-start;
}
.ni-alert svg {
    width: 18px; height: 18px;
    flex-shrink: 0;
    margin-top: 1px;
}
.ni-alert.warn {
    background: rgba(255, 235, 59, 0.08);
    border: 1px solid rgba(255, 235, 59, 0.3);
    color: var(--yellow);
}
.ni-alert.danger {
    background: rgba(239,68,68,0.08);
    border: 1px solid rgba(239,68,68,0.3);
    color: var(--red);
}
.ni-alert.info {
    background: rgba(100, 181, 246, 0.08);
    border: 1px solid rgba(100, 181, 246, 0.3);
    color: var(--hl-blue);
}
.ni-alert.sensitive {
    background: rgba(240, 98, 146, 0.08);
    border: 1px solid rgba(240, 98, 146, 0.3);
    color: var(--hl-pink);
}

/* Cálculo de prazo destacado */
.ni-prazo-card {
    margin-top: 1rem;
    padding: 1rem 1.2rem;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius-xs);
}
.ni-prazo-card.exceeded {
    border-color: rgba(239,68,68,0.4);
    background: rgba(239,68,68,0.06);
}
.ni-prazo-num {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
    color: var(--accent);
}
.ni-prazo-card.exceeded .ni-prazo-num { color: var(--red); }
.ni-prazo-label {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-top: 0.3rem;
}

/* Painel de validação */
.ni-validation {
    margin-top: 2rem;
    padding: 1.25rem;
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--border);
    border-radius: var(--radius-xs);
}
.ni-validation h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
}
.ni-validation-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 0.4rem;
    margin-bottom: 0.75rem;
}
.ni-validation-item {
    display: flex; align-items: center; gap: 0.5rem;
    padding: 0.4rem 0.6rem;
    border-radius: 6px;
    font-size: 0.8rem;
    background: rgba(255,255,255,0.02);
}
.ni-validation-item.ok    { color: var(--green); }
.ni-validation-item.fail  { color: var(--red); }
.ni-validation-warnings {
    margin-top: 0.6rem;
    display: flex; flex-direction: column; gap: 0.4rem;
}

/* Botões nav próximo/voltar */
.ni-content-actions {
    display: flex; justify-content: space-between;
    margin-top: 2rem;
    gap: 0.75rem;
}
.ni-btn-primary, .ni-btn-secondary {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.7rem 1.3rem;
    border-radius: var(--radius-xs);
    font-family: inherit;
    font-size: 0.88rem; font-weight: 600;
    cursor: pointer;
    transition: all var(--t);
    border: 1px solid transparent;
}
.ni-btn-primary { background: var(--accent); color: white; }
.ni-btn-primary:hover { background: var(--accent-hover); }
.ni-btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }
.ni-btn-secondary {
    background: rgba(255,255,255,0.04);
    color: var(--text);
    border-color: var(--border);
}
.ni-btn-secondary:hover { border-color: var(--border-hover); background: rgba(255,255,255,0.07); }
.ni-btn-secondary:disabled { opacity: 0.4; cursor: not-allowed; }

.ni-error {
    margin-top: 1rem;
    padding: 0.75rem 1rem;
    background: rgba(239,68,68,0.1);
    border: 1px solid rgba(239,68,68,0.3);
    border-radius: var(--radius-xs);
    color: var(--red);
    font-size: 0.85rem;
}

.ni-section-disabled {
    opacity: 0.55;
    padding: 1rem 1.2rem;
    background: rgba(255,255,255,0.02);
    border: 1px dashed var(--border);
    border-radius: var(--radius-xs);
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.5;
}