:root {
    --c-primary: #4361ee;
    --c-primary-dark: #3a0ca3;
    --c-accent: #f72585;
    --c-ok: #06d6a0;
    --c-warn: #f59e0b;
    --c-err: #ef476f;
    --c-bg: #f6f7fb;
    --c-card: #ffffff;
    --c-border: rgba(15, 23, 42, .08);
    --c-text: #0f172a;
    --c-muted: #64748b;
    --shadow-sm: 0 1px 2px rgba(15,23,42,.04), 0 1px 3px rgba(15,23,42,.06);
    --shadow-md: 0 4px 8px rgba(15,23,42,.04), 0 12px 24px rgba(15,23,42,.06);
    --radius-md: 12px;
    --radius-lg: 16px;
}

body { font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; color: var(--c-text); }

/* ---------- Login ---------- */
.login-shell { min-height: 100vh; display: grid; grid-template-columns: 1.2fr 1fr; }
@media (max-width: 900px) { .login-shell { grid-template-columns: 1fr; } .login-art { display: none; } }
.login-art { position: relative; overflow: hidden; background: linear-gradient(135deg, var(--c-primary-dark), var(--c-primary)); }
.login-art img { width: 100%; height: 100%; object-fit: cover; opacity: .55; mix-blend-mode: overlay; }
.login-art-overlay { position: absolute; inset: auto 0 0 0; padding: 2.5rem; color: #fff; }
.login-art-overlay h2 { font-weight: 800; letter-spacing: -0.02em; font-size: 2.25rem; }
.login-art-overlay p { opacity: .9; max-width: 32ch; }
.login-form-wrap { display: flex; align-items: center; justify-content: center; padding: 2rem; }
.login-card { width: 100%; max-width: 420px; background: var(--c-card); padding: 2.5rem; border-radius: var(--radius-lg); box-shadow: var(--shadow-md); }
.login-brand { display: inline-flex; gap: .5rem; align-items: center; color: var(--c-primary); font-size: 1.05rem; margin-bottom: 1.5rem; }
.login-brand i { font-size: 1.6rem; }
.login-card h1 { font-weight: 800; letter-spacing: -0.02em; font-size: 1.75rem; }
.login-foot { margin-top: 1.5rem; text-align: center; }

/* ---------- App shell ---------- */
.app-shell { display: grid; grid-template-columns: 256px 1fr; min-height: 100vh; background: var(--c-bg); }
.app-sidebar {
    position: sticky; top: 0; height: 100vh; padding: 1.25rem 1rem;
    background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%); color: #cbd5e1;
    display: flex; flex-direction: column; gap: 1rem;
    z-index: 1040;
}
.app-burger {
    display: none; position: fixed; top: 0.6rem; left: 0.6rem; z-index: 1050;
    width: 42px; height: 42px; border-radius: 10px; border: 0;
    background: var(--c-card); color: var(--c-text); box-shadow: var(--shadow-md);
    font-size: 1.4rem;
}
.app-sidebar-backdrop {
    display: none; position: fixed; inset: 0; background: rgba(15, 23, 42, .5); z-index: 1035;
}
.app-sidebar-backdrop.open { display: block; }

@media (max-width: 768px) {
    .app-shell { grid-template-columns: 1fr; }
    .app-sidebar {
        position: fixed; top: 0; left: 0; height: 100vh; width: 280px;
        transform: translateX(-100%); transition: transform .25s ease-out;
        box-shadow: 0 0 30px rgba(0, 0, 0, .35);
    }
    .app-sidebar.open { transform: translateX(0); }
    .app-burger { display: grid; place-items: center; }
    .app-main { padding-top: 4rem !important; }
}
.brand { display: flex; gap: .75rem; align-items: center; padding: .25rem .5rem 1rem; border-bottom: 1px solid rgba(255,255,255,.08); }
.brand-mark { width: 38px; height: 38px; border-radius: 10px; background: linear-gradient(135deg, var(--c-primary), var(--c-accent)); display: grid; place-items: center; overflow: hidden; }
.brand-mark img { width: 100%; height: 100%; object-fit: cover; }
.brand-name { color: #fff; font-weight: 800; letter-spacing: -0.02em; }
.brand-name span { color: var(--c-accent); }
.brand-tag { font-size: .75rem; color: #94a3b8; }
.app-nav .nav-link { color: #cbd5e1; border-radius: 8px; padding: .55rem .75rem; display: flex; align-items: center; gap: .65rem; font-weight: 500; }
.app-nav .nav-link i { width: 18px; }
.app-nav .nav-link:hover { background: rgba(255,255,255,.05); color: #fff; }
.app-nav .nav-link.active { background: linear-gradient(135deg, rgba(67,97,238,.25), rgba(247,37,133,.18)); color: #fff; box-shadow: inset 0 0 0 1px rgba(255,255,255,.08); }
.app-sidebar-footer { margin-top: auto; display: flex; flex-direction: column; gap: .75rem; }
.user-pill { display: flex; gap: .65rem; align-items: center; padding: .5rem .75rem; background: rgba(255,255,255,.04); border-radius: 10px; }
.user-pill i { font-size: 1.5rem; color: #94a3b8; }
.user-name { color: #fff; font-weight: 600; font-size: .9rem; line-height: 1.1; }
.user-login { font-size: .75rem; color: #94a3b8; }

.app-main { padding: 1.75rem 2rem 3rem; }
@media (max-width: 768px) { .app-main { padding: 1rem 1rem 2rem; } }
.app-header { margin-bottom: 1.25rem; }
.app-title { font-size: 1.6rem; font-weight: 800; letter-spacing: -0.02em; margin: 0; }
.app-subtitle { color: var(--c-muted); margin: .25rem 0 0; }

/* ---------- KPIs ---------- */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; }
.kpi-card { background: var(--c-card); border-radius: var(--radius-md); padding: 1rem 1.25rem; box-shadow: var(--shadow-sm); display: flex; gap: 1rem; align-items: center; }
.kpi-card.kpi-primary { background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark)); color: #fff; }
.kpi-card.kpi-primary .kpi-label, .kpi-card.kpi-primary .kpi-trend { color: rgba(255,255,255,.85); }
.kpi-icon { width: 44px; height: 44px; border-radius: 10px; background: rgba(67,97,238,.12); color: var(--c-primary); display: grid; place-items: center; font-size: 1.25rem; }
.kpi-card.kpi-primary .kpi-icon { background: rgba(255,255,255,.18); color: #fff; }
.kpi-icon.kpi-warn { background: rgba(245,158,11,.12); color: var(--c-warn); }
.kpi-label { color: var(--c-muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; }
.kpi-value { font-size: 1.35rem; font-weight: 800; letter-spacing: -0.02em; }
.kpi-trend { font-size: .82rem; font-weight: 600; }
.kpi-trend.up { color: var(--c-ok); }
.kpi-trend.down { color: var(--c-err); }

/* ---------- Cards / charts ---------- */
.card { border: 1px solid var(--c-border); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); }
.card-header { background: transparent; border-bottom: 1px solid var(--c-border); font-weight: 600; padding: .9rem 1.1rem; }
.card-header i { color: var(--c-primary); margin-right: .35rem; }
.chart-card .card-body { padding: 1rem 1.1rem; }

/* ---------- Filter bar ---------- */
.filter-bar { background: var(--c-card); border-radius: var(--radius-md); padding: 1rem 1.1rem; box-shadow: var(--shadow-sm); }

/* ---------- NFSe table ---------- */
.nfse-table thead th { background: #fafbfd; color: var(--c-muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; font-weight: 600; border: 0; }
.nfse-table tbody tr { border-bottom: 1px solid var(--c-border); }
.nfse-table tbody tr:hover { background: rgba(67,97,238,.03); }

/* ---------- Send grid ---------- */
.send-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: .9rem; }
@media (max-width: 480px) { .send-grid { grid-template-columns: 1fr; } }
.send-card {
    background: var(--c-card); border-radius: var(--radius-md); border: 1px solid var(--c-border); padding: 1rem;
    box-shadow: var(--shadow-sm); transition: transform .15s ease, border-color .15s ease, background .25s;
    position: relative; overflow: hidden;
}
.send-card::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--c-border); transition: background .25s; }
.send-card.stage-queued::before { background: var(--c-muted); }
.send-card.stage-progress::before { background: var(--c-primary); animation: pulse 1.4s ease-in-out infinite; }
.send-card.stage-ok { background: linear-gradient(180deg, #ecfdf5 0%, #fff 60%); }
.send-card.stage-ok::before { background: var(--c-ok); }
.send-card.stage-error { background: linear-gradient(180deg, #fef2f2 0%, #fff 60%); }
.send-card.stage-error::before { background: var(--c-err); }
.send-card-head { display: flex; gap: .5rem; align-items: center; margin-bottom: .5rem; }
.send-card-head i { font-size: 1.1rem; color: var(--c-primary); }
.send-card.stage-ok .send-card-head i { color: var(--c-ok); }
.send-card.stage-error .send-card-head i { color: var(--c-err); }
.send-card-stage { font-size: .8rem; color: var(--c-muted); text-transform: uppercase; letter-spacing: .05em; }
.send-card-valor { font-size: 1.15rem; font-weight: 700; letter-spacing: -0.01em; }
.send-card-meta { font-size: .85rem; color: var(--c-muted); margin-top: .35rem; }
.send-card-error { font-size: .8rem; color: var(--c-err); margin-top: .5rem; word-break: break-word; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }

/* ---------- Heatmap ---------- */
.heatmap { display: grid; gap: 4px; }
.heat-row { display: grid; grid-template-columns: 40px repeat(24, 1fr); gap: 3px; align-items: center; }
.heat-cell { height: 22px; border-radius: 4px; }
.heat-d, .heat-h { font-size: .7rem; color: var(--c-muted); text-align: center; }
.heat-h { padding-bottom: 2px; }

/* ---------- Invoice ---------- */
.invoice-paper { background: #fff; max-width: 820px; margin: 0 auto; padding: 2.5rem; border-radius: var(--radius-md); box-shadow: var(--shadow-md); position: relative; overflow: hidden; }
.invoice-actions { position: absolute; right: 1.5rem; top: 1.5rem; }
.invoice-watermark { position: absolute; inset: 0; display: grid; place-items: center; font-size: 8rem; color: rgba(67,97,238,.05); font-weight: 900; letter-spacing: -.04em; pointer-events: none; transform: rotate(-15deg); }
.invoice-header { display: flex; justify-content: space-between; align-items: flex-start; padding-bottom: 1rem; border-bottom: 2px solid var(--c-primary); }
.invoice-title { font-size: 1.1rem; font-weight: 800; letter-spacing: -.01em; color: var(--c-primary-dark); }
.invoice-subtitle { color: var(--c-muted); }
.invoice-numero { text-align: right; }
.invoice-numero div { font-size: 1.6rem; font-weight: 800; color: var(--c-primary-dark); }
.invoice-block { padding: 1.25rem 0; border-bottom: 1px dashed var(--c-border); }
.invoice-block h6 { color: var(--c-muted); font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: .5rem; }
.invoice-block p { margin: .15rem 0; }
.invoice-totais { display: flex; gap: 2rem; padding-top: 1.25rem; align-items: flex-end; }
.invoice-totais small { color: var(--c-muted); }
.invoice-valor { font-size: 1.6rem; font-weight: 800; color: var(--c-ok); letter-spacing: -.01em; }

@media print {
    .no-print, .d-print-none, .app-sidebar { display: none !important; }
    body { background: #fff !important; }
    .app-shell { grid-template-columns: 1fr !important; }
    .app-main { padding: 0 !important; }
    .app-header { border-bottom: 2px solid #4361ee; padding-bottom: 0.5rem; margin-bottom: 1rem; }
    .invoice-paper { box-shadow: none; max-width: 100%; }
    .card { box-shadow: none !important; border: 1px solid #e5e7eb !important; break-inside: avoid; }
    .chart-card { break-inside: avoid; }
    .kpi-card { break-inside: avoid; }
    .kpi-card.kpi-primary { background: #4361ee !important; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
    canvas { max-width: 100% !important; height: auto !important; }
    .filter-bar, .form-control, button { display: none !important; }
    .send-grid, .heatmap { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
    @page { size: A4 landscape; margin: 12mm; }
}