:root {
  --ink: #1a1a1a;
  --muted: #5c6570;
  --paper: #f3f4f6;
  --card: #ffffff;
  --line: #d8dee6;
  --sea: #0f6e6a;
  --sea-dark: #0b5552;
  --warn: #8a3d1d;
  --ok: #176b3a;
  --shadow: 0 1px 2px rgba(16, 24, 32, 0.04);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--paper);
  font-family: "Segoe UI Variable", "Segoe UI", sans-serif;
  font-size: 15px;
  line-height: 1.45;
}

a { color: var(--sea-dark); }
button, input, select, textarea { font: inherit; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 56px;
  padding: 8px 24px;
  background: #fff;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
}

.brand strong {
  font-weight: 650;
  font-size: 16px;
  letter-spacing: 0.04em;
}

.brand span { color: var(--muted); font-size: 13px; }

.nav { display: flex; gap: 4px; align-items: center; }

.nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: 14px;
  padding: 6px 10px;
  border-radius: 6px;
}

.nav a:hover { background: #eef1f4; color: var(--ink); }

.who {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  color: var(--muted);
  font-size: 13px;
  margin: 0 8px;
  line-height: 1.2;
}

.session-clock, .next-sync { display: block; font-size: 12px; color: var(--muted); }

.logout {
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 12px;
  cursor: pointer;
}

.logout:hover { background: #f6f7f9; }

.wrap { width: min(1180px, calc(100% - 32px)); margin: 24px auto 40px; }

.page-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  margin-bottom: 16px;
}

.page-head h1 { font-weight: 650; font-size: 28px; margin: 0; letter-spacing: -0.02em; }
.page-head p { margin: 4px 0 0; color: var(--muted); font-size: 14px; }

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-bottom: 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.stat {
  display: block;
  padding: 14px 16px;
  text-decoration: none;
  color: var(--ink);
  border-right: 1px solid var(--line);
}

.stat:last-child { border-right: 0; }
.stat:hover { background: #f7f8fa; }
.stat b { display: block; font-size: 26px; font-weight: 650; letter-spacing: -0.03em; }
.stat span { color: var(--muted); font-size: 13px; }
.stat.active { background: #eef6f5; box-shadow: inset 0 -2px 0 var(--sea); }

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}

.panel h2 { margin: 0 0 12px; font-size: 16px; font-weight: 650; }

.watch-grid { display: grid; grid-template-columns: 1.5fr 0.9fr; gap: 16px; }

.ship-card {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

.ship-card:first-of-type { border-top: 0; padding-top: 0; }
.ship-card h3 { margin: 0 0 2px; font-size: 15px; font-weight: 650; }
.meta { color: var(--muted); font-size: 13px; }
.inline { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 6px;
  padding: 8px 10px;
  color: var(--ink);
}

input:focus, select:focus, textarea:focus {
  outline: 2px solid rgba(15, 110, 106, 0.25);
  border-color: var(--sea);
}

label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
.field { margin-bottom: 12px; }
.field strong { font-weight: 600; }

.btn {
  border: 0;
  background: var(--sea);
  color: white;
  border-radius: 6px;
  padding: 8px 14px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

.btn:hover { background: var(--sea-dark); color: white; }
.btn.ghost { background: #fff; color: var(--ink); border: 1px solid var(--line); }
.btn.ghost:hover { background: #f6f7f9; color: var(--ink); }
.btn.small { padding: 5px 10px; font-size: 13px; }

.toolbar { display: flex; gap: 8px; margin-bottom: 12px; }
.toolbar input { max-width: 360px; }

.table-scroll { overflow-x: auto; }

table { width: 100%; border-collapse: collapse; }

th {
  text-align: left;
  font-size: 12px;
  font-weight: 650;
  color: var(--muted);
  padding: 8px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

td {
  padding: 10px 8px;
  border-bottom: 1px solid #eef1f4;
  vertical-align: middle;
  font-variant-numeric: tabular-nums;
}

tr:last-child td { border-bottom: 0; }
tr:hover td { background: #f7f8fa; }
td a { font-weight: 600; text-decoration: none; }
td a:hover { text-decoration: underline; }

.chip {
  display: inline-flex;
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 12px;
  font-weight: 600;
  background: #eceff3;
  white-space: nowrap;
}

.chip.previsto { background: #e3f3f1; color: var(--sea-dark); }
.chip.operacao { background: #e4eef8; color: #184a7a; }
.chip.nabarra { background: #f8f1c8; color: #6a5a10; }
.chip.desatracado { background: #eceff3; color: #4d565f; }
.chip.omitido { background: #f8e7df; color: var(--warn); }

.flash { padding: 10px 12px; border-radius: 6px; margin-bottom: 12px; font-size: 14px; }
.flash.ok { background: #e7f6ec; color: var(--ok); }
.flash.erro { background: #fde8e0; color: var(--warn); }
.note { color: var(--muted); font-size: 13px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-card {
  width: min(400px, 100%);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 28px;
  box-shadow: var(--shadow);
}

.login-card h1 { margin: 8px 0 4px; font-size: 24px; font-weight: 650; }
.login-mark { margin: 0; font-weight: 650; letter-spacing: 0.06em; font-size: 13px; color: var(--sea-dark); }
.login-card .lede { margin: 0 0 18px; color: var(--muted); font-size: 14px; }

.check { display: flex; gap: 8px; align-items: center; }
.check input { width: auto; }
.check label { margin: 0; }

@media (max-width: 900px) {
  .stats, .watch-grid, .split { grid-template-columns: 1fr; }
  .stat { border-right: 0; border-bottom: 1px solid var(--line); }
  .stat:last-child { border-bottom: 0; }
  .topbar { height: auto; flex-wrap: wrap; padding: 12px 16px; }
  .page-head { flex-direction: column; align-items: start; }
  .wrap { width: min(1180px, calc(100% - 20px)); }
}