:root {
  --ink: #1a2332;
  --ink-soft: #4a5568;
  --paper: #f7f8fa;
  --panel: #ffffff;
  --line: #e2e5ea;
  --accent: #0f4c5c;       /* petróleo escuro - carga/mar */
  --accent-soft: #e8f0f1;
  --green: #1a7a4c;
  --green-bg: #e8f5ee;
  --amber: #b8790a;
  --amber-bg: #fdf3e2;
  --red: #b3261e;
  --red-bg: #fbe9e8;
  --mono: "SF Mono", "Roboto Mono", Consolas, monospace;
  --sans: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.5;
}

.topbar {
  background: var(--ink);
  color: #fff;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.topbar a { color: #fff; text-decoration: none; }
.topbar .brand { font-weight: 700; letter-spacing: 0.02em; font-size: 15px; }
.topbar .brand .accent { color: #7fd4c1; }
.topbar nav a { margin-left: 18px; font-size: 13px; opacity: 0.85; }
.topbar nav a:hover { opacity: 1; }

.wrap {
  max-width: 980px;
  margin: 0 auto;
  padding: 28px 24px 60px;
}

h1 { font-size: 22px; margin: 0 0 4px; }
h2 { font-size: 16px; margin: 28px 0 12px; color: var(--ink); border-bottom: 1px solid var(--line); padding-bottom: 8px; }
.subtitle { color: var(--ink-soft); font-size: 13px; margin-bottom: 24px; }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 22px 24px;
  margin-bottom: 18px;
}

.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 20px; }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 700px) { .grid, .grid.cols-3, .grid.cols-4 { grid-template-columns: 1fr; } }

.field label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink-soft);
  margin-bottom: 5px;
}
.field .hint { font-size: 11.5px; color: #8a94a3; margin-top: 3px; }
.field .hint a { color: var(--accent); }

input[type=text], input[type=number], input[type=date], select, textarea {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-size: 14px;
  font-family: var(--sans);
  background: #fff;
  color: var(--ink);
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}
textarea { resize: vertical; min-height: 60px; }

.checkbox-row { display: flex; align-items: center; gap: 8px; margin-top: 6px; }
.checkbox-row input { width: auto; }

fieldset { border: none; padding: 0; margin: 0; }
legend { font-weight: 700; font-size: 14px; margin-bottom: 10px; color: var(--accent); }

.actions { margin-top: 26px; display: flex; gap: 10px; }

button, .btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 11px 20px;
  border-radius: 7px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}
button:hover, .btn:hover { background: #0c3d49; }
.btn.secondary { background: #fff; color: var(--ink); border: 1px solid var(--line); }
.btn.secondary:hover { background: #f2f3f5; }

.flash { padding: 12px 16px; border-radius: 8px; margin-bottom: 18px; font-size: 14px; }
.flash.error { background: var(--red-bg); color: var(--red); border: 1px solid #f3c9c6; }
.flash.ok { background: var(--green-bg); color: var(--green); border: 1px solid #b7e0c8; }

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); }
th { color: var(--ink-soft); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.03em; }
td.num, th.num { text-align: right; font-family: var(--mono); }

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
}
.badge.verde { background: var(--green-bg); color: var(--green); }
.badge.amarelo { background: var(--amber-bg); color: var(--amber); }
.badge.vermelho { background: var(--red-bg); color: var(--red); }

.hero-price {
  background: var(--accent-soft);
  border-radius: 10px;
  padding: 26px 28px;
  text-align: center;
  margin-bottom: 22px;
}
.hero-price .label { font-size: 12.5px; color: var(--accent); text-transform: uppercase; letter-spacing: 0.05em; font-weight: 700; }
.hero-price .value { font-family: var(--mono); font-size: 42px; font-weight: 700; color: var(--ink); margin: 6px 0; }
.hero-price .sub { font-size: 12.5px; color: var(--ink-soft); }

.breakdown-row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px dashed var(--line); font-size: 14px; }
.breakdown-row.total { border-top: 2px solid var(--ink); border-bottom: none; font-weight: 700; margin-top: 6px; padding-top: 12px; }
.breakdown-row .amount { font-family: var(--mono); }

.tabs { display: flex; gap: 4px; margin-bottom: 18px; }
.tabs a {
  padding: 8px 16px; border-radius: 7px 7px 0 0; text-decoration: none;
  font-size: 13px; font-weight: 600; color: var(--ink-soft); border: 1px solid transparent;
}
.tabs a.active { background: #fff; color: var(--ink); border: 1px solid var(--line); border-bottom-color: #fff; }

.login-wrap {
  max-width: 380px; margin: 12vh auto; background: #fff; border: 1px solid var(--line);
  border-radius: 12px; padding: 36px 32px;
}
.login-wrap h1 { text-align: center; margin-bottom: 6px; }
.login-wrap p { text-align: center; color: var(--ink-soft); font-size: 13px; margin-bottom: 24px; }

.empty-state { text-align: center; padding: 50px 20px; color: var(--ink-soft); }

.meta-strip { display: flex; gap: 18px; flex-wrap: wrap; font-size: 13px; color: var(--ink-soft); margin-bottom: 4px; }
.meta-strip strong { color: var(--ink); }

@media print {
  .topbar, .actions, .tabs { display: none !important; }
  body { background: #fff; }
  .panel { border: none; box-shadow: none; }
}