/* ============ Paleta Monobloco ============ */
:root {
    --mono-red: #e31b23;
    --mono-red-dark: #b21418;
    --mono-red-light: #fce9ea;
    --mono-black: #1a1a1a;
    --mono-gray-900: #222;
    --mono-gray-700: #374151;
    --mono-gray-500: #6a7280;
    --mono-gray-300: #d1d5db;
    --mono-gray-100: #e5e7eb;
    --mono-gray-50: #f4f4f5;
    --mono-bg: #f5f5f7;
    --mono-white: #fff;
    --ok: #0a7c2e;
    --ok-bg: #e6f6ea;
    --warn: #d68a00;
    --warn-bg: #fff7e0;
}

/* ============ Reset + base ============ */
* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--mono-bg);
    color: var(--mono-gray-900);
    line-height: 1.5;
}
.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 20px;
}
a { color: var(--mono-red); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.75rem; margin: 20px 0 12px; color: var(--mono-black); }
h1::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--mono-red);
    margin-top: 6px;
    border-radius: 2px;
}
h2 { font-size: 1.25rem; margin: 12px 0 8px; color: var(--mono-black); }
h3 { font-size: 1.05rem; margin: 12px 0 6px; color: var(--mono-gray-900); }
.muted { color: var(--mono-gray-500); }
.small { font-size: 0.85rem; }

/* ============ Header ============ */
.topbar {
    background: var(--mono-white);
    color: var(--mono-black);
    padding: 10px 0;
    box-shadow: 0 2px 6px rgba(0,0,0,0.08);
    border-bottom: 3px solid var(--mono-red);
}
.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}
.brand {
    color: var(--mono-black);
    font-size: 1.05rem;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 12px;
}
.brand:hover { text-decoration: none; }
.brand-logo {
    height: 48px;
    width: auto;
    display: block;
}
.brand-text {
    font-weight: 500;
    color: var(--mono-gray-700);
    border-left: 2px solid var(--mono-red);
    padding-left: 12px;
    line-height: 1.1;
}
.nav {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
}
.nav a {
    color: var(--mono-gray-700);
    font-weight: 500;
}
.nav a:hover {
    color: var(--mono-red);
    text-decoration: none;
}
.user-info {
    background: var(--mono-gray-50);
    color: var(--mono-gray-700);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.9rem;
    border: 1px solid var(--mono-gray-100);
}
.link-btn {
    background: none;
    border: none;
    color: var(--mono-red);
    cursor: pointer;
    font-size: 1rem;
    padding: 0;
    font-weight: 500;
}
.link-btn:hover { text-decoration: underline; }

/* ============ Footer ============ */
.footer {
    margin-top: 60px;
    padding: 20px 0;
    color: var(--mono-gray-500);
    text-align: center;
    border-top: 1px solid var(--mono-gray-100);
}

/* ============ Cards / Forms ============ */
.login-card {
    max-width: 400px;
    margin: 60px auto;
    background: var(--mono-white);
    padding: 32px;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    border-top: 4px solid var(--mono-red);
}
.login-card h1 { margin-top: 0; }
.login-card h1::after { margin: 6px auto 0; }

.form-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
fieldset {
    background: var(--mono-white);
    border: 1px solid var(--mono-gray-100);
    border-radius: 8px;
    padding: 16px 20px;
    margin: 0;
}
legend {
    font-weight: 600;
    color: var(--mono-black);
    padding: 0 8px;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}
label {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 0.9rem;
    color: var(--mono-gray-700);
}
input[type="text"],
input[type="password"],
input[type="number"],
input[type="date"],
select,
textarea {
    padding: 8px 10px;
    border: 1px solid var(--mono-gray-300);
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
    background: var(--mono-white);
    transition: border-color 0.15s, box-shadow 0.15s;
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--mono-red);
    box-shadow: 0 0 0 3px rgba(227, 27, 35, 0.15);
}
textarea { resize: vertical; }

.row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 12px;
}
.row-4 {
    grid-template-columns: repeat(4, 1fr);
}
.col-2 { grid-column: span 2; }

.stacked {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 16px;
}

.tipo-radio {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 12px;
}
.radio-inline {
    flex-direction: row;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    color: var(--mono-gray-700);
}
.radio-inline input[type="radio"] {
    accent-color: var(--mono-red);
}

/* ============ Fornecedores ============ */
.forn-row {
    display: grid;
    grid-template-columns: 2fr 1fr auto;
    gap: 8px;
    margin-bottom: 8px;
}

/* ============ Buttons ============ */
.btn {
    padding: 10px 18px;
    border-radius: 6px;
    border: 1px solid transparent;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    transition: all 0.15s;
    text-decoration: none;
    display: inline-block;
    letter-spacing: 0.3px;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); box-shadow: 0 2px 6px rgba(0,0,0,0.12); }
.btn-primary {
    background: var(--mono-red);
    color: var(--mono-white);
}
.btn-primary:hover { background: var(--mono-red-dark); }
.btn-secondary {
    background: var(--mono-white);
    color: var(--mono-black);
    border-color: var(--mono-gray-300);
}
.btn-secondary:hover { border-color: var(--mono-red); color: var(--mono-red); }
.btn-danger {
    background: var(--mono-gray-900);
    color: var(--mono-white);
}
.btn-danger:hover { background: #000; }
.btn-remove {
    background: var(--mono-red-light);
    color: var(--mono-red-dark);
    border: 1px solid #f5c2c2;
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
}
.btn-remove:hover { background: var(--mono-red); color: var(--mono-white); }
.actions {
    display: flex;
    gap: 10px;
    margin-top: 8px;
}

/* ============ Alerts ============ */
.alert {
    padding: 10px 14px;
    border-radius: 6px;
    margin-bottom: 12px;
    font-size: 0.95rem;
}
.alert-error {
    background: var(--mono-red-light);
    color: var(--mono-red-dark);
    border: 1px solid #f5c2c2;
}
.alert-ok {
    background: var(--ok-bg);
    color: var(--ok);
    border: 1px solid #b8e0c1;
}

/* ============ Resultado ============ */
.resultado {
    margin-top: 24px;
    padding: 20px;
    border-radius: 8px;
    border-left: 6px solid var(--mono-gray-500);
    background: var(--mono-white);
    box-shadow: 0 1px 6px rgba(0,0,0,0.06);
}
.resultado h2 { color: var(--mono-black); }
.resultado-ok { border-left-color: var(--ok); }
.resultado-alerta { border-left-color: var(--warn); }
.resultado-prejuizo { border-left-color: var(--mono-red); background: var(--mono-red-light); }

.resumo-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin: 16px 0;
}
.resumo-item {
    background: var(--mono-gray-50);
    padding: 12px 14px;
    border-radius: 6px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    border: 1px solid transparent;
}
.resumo-item.destaque {
    background: var(--mono-white);
    border-color: var(--mono-gray-100);
    border-left: 3px solid var(--mono-red);
}
.resumo-label {
    font-size: 0.8rem;
    color: var(--mono-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.4px;
    font-weight: 500;
}
.resumo-valor {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--mono-black);
}
.resultado-ok .resumo-item.destaque .resumo-valor { color: var(--ok); }
.resultado-alerta .resumo-item.destaque .resumo-valor { color: var(--warn); }
.resultado-prejuizo .resumo-item.destaque .resumo-valor { color: var(--mono-red-dark); }

.detalhes-imposto {
    margin-top: 12px;
    background: var(--mono-gray-50);
    padding: 8px 12px;
    border-radius: 6px;
}
.detalhes-imposto summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--mono-gray-900);
    padding: 4px 0;
}
.detalhes-imposto summary:hover { color: var(--mono-red); }
.mini-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 8px;
    font-size: 0.9rem;
}
.mini-table td { padding: 4px 8px; }
.mini-table .right { text-align: right; }
.mini-table .total-row td {
    border-top: 1px solid var(--mono-gray-300);
    font-weight: 700;
    padding-top: 6px;
}

.sugestoes {
    margin-top: 16px;
    padding: 12px 16px;
    background: var(--warn-bg);
    border-left: 3px solid var(--warn);
    border-radius: 4px;
}
.sugestoes h3 { margin-top: 0; color: var(--mono-black); }
.sugestoes ul { margin: 6px 0 0 20px; padding: 0; }
.sugestoes li { margin-bottom: 6px; }

/* ============ Histórico ============ */
.filtros {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
    align-items: center;
}
.filtros input[type="text"] { flex: 1; }
.lista-projetos {
    width: 100%;
    border-collapse: collapse;
    background: var(--mono-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}
.lista-projetos th, .lista-projetos td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--mono-gray-100);
    font-size: 0.95rem;
}
.lista-projetos th {
    background: var(--mono-black);
    color: var(--mono-white);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}
.lista-projetos tbody tr:hover { background: var(--mono-red-light); }
.lista-projetos tbody tr:hover a { color: var(--mono-red-dark); }

/* ============ Detalhe ============ */
.detalhe-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}
.detalhe-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}
.obs {
    margin-top: 20px;
    padding: 14px 18px;
    background: var(--mono-white);
    border-radius: 6px;
    border: 1px solid var(--mono-gray-100);
    border-left: 3px solid var(--mono-red);
}

/* ============ Config ============ */
.card {
    background: var(--mono-white);
    padding: 20px 24px;
    border-radius: 8px;
    margin-bottom: 16px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    border-top: 3px solid var(--mono-red);
}
.card h2 { margin-top: 0; color: var(--mono-black); }
.config-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 8px;
}
.config-table th, .config-table td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid var(--mono-gray-100);
}
.config-table td {
    text-align: right;
    font-weight: 700;
    color: var(--mono-red);
    font-size: 1.1rem;
}
.explicacao {
    padding-left: 20px;
    margin: 8px 0;
}
.explicacao li { margin-bottom: 6px; }
.explicacao strong { color: var(--mono-black); }

/* ============ Responsivo ============ */
@media (max-width: 700px) {
    .row, .row-4 { grid-template-columns: 1fr; }
    .col-2 { grid-column: auto; }
    .resumo-grid { grid-template-columns: 1fr; }
    .topbar-inner { flex-direction: column; align-items: flex-start; }
    .nav { width: 100%; }
    .forn-row { grid-template-columns: 1fr; }
    .lista-projetos { font-size: 0.85rem; }
    .lista-projetos th, .lista-projetos td { padding: 8px; }
    .brand-logo { height: 40px; }
    .brand-text { font-size: 0.9rem; }
}