:root {
  --primary: #00897B;
  --primary-dark: #00695C;
  --bg: #F4F6F7;
  --card: #FFFFFF;
  --text: #263238;
  --muted: #78909C;
  --border: #E0E4E6;
  --danger: #E53935;
  --warn: #FB8C00;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

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

.topbar .brand { font-weight: 700; font-size: 18px; }
.topbar nav a {
  color: #E0F2F1;
  text-decoration: none;
  margin-left: 20px;
  font-size: 14px;
}
.topbar nav a:hover { color: #fff; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 20px;
}

.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px;
}
.stat .label { color: var(--muted); font-size: 13px; }
.stat .value { font-size: 26px; font-weight: 700; color: var(--primary-dark); }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; }

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  color: #fff;
}
.badge.fervendo { background: #E53935; }
.badge.muito_quente { background: #FB8C00; }
.badge.quente { background: #FDD835; color: #333; }
.badge.morno { background: #78909C; }
.badge.frio, .badge.muito_frio { background: #90A4AE; }

.btn {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 9px 18px;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--primary-dark); }

.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 5px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
}

.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #00695C, #00897B);
}
.login-box {
  background: #fff;
  padding: 40px;
  border-radius: 12px;
  width: 100%;
  max-width: 360px;
  box-shadow: 0 20px 40px rgba(0,0,0,.2);
}
.login-box h1 { font-size: 20px; margin: 0 0 4px; }
.login-box p.sub { color: var(--muted); font-size: 13px; margin: 0 0 24px; }
.alert { background: #FDECEA; color: #C62828; padding: 10px 14px; border-radius: 6px; font-size: 13px; margin-bottom: 16px; }
.alert.success { background: #E8F5E9; color: #2E7D32; }