:root {
  --primary: #1f4e8f;
  --primary-dark: #143868;
  --accent: #2d8cff;
  --bg: #f3f5f9;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #d8dee9;
  --success: #1e7e34;
  --danger: #c0392b;
  --warn: #b8860b;
  --shadow: 0 2px 8px rgba(0,0,0,.06);
  --radius: 8px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, sans-serif;
  font-size: 14px;
  height: 100%;
}

.screen { display: none; min-height: 100vh; }
.screen.active { display: block; }

/* ================= LOGIN ================= */
#screen-login {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  display: none;
  align-items: center;
  justify-content: center;
}
#screen-login.active { display: flex; }

.login-card {
  background: var(--card);
  width: 360px;
  padding: 36px 32px;
  border-radius: 12px;
  box-shadow: 0 12px 40px rgba(0,0,0,.25);
}
.login-card .brand h1 {
  margin: 0;
  font-size: 26px;
  color: var(--primary);
}
.login-card .brand h1 span { color: var(--accent); font-weight: 600; }
.login-card .brand p {
  color: var(--muted);
  margin: 4px 0 24px;
  font-size: 12px;
}
.login-card form { display: flex; flex-direction: column; gap: 6px; }
.login-card label { font-size: 12px; color: var(--muted); margin-top: 6px; }
.login-card input {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
}
.login-card .btn-primary { margin-top: 18px; }
.login-card .hint { margin-top: 14px; font-size: 11px; color: var(--muted); text-align: center; }
.error-msg { color: var(--danger); font-size: 12px; min-height: 16px; margin: 6px 0 0; }

/* ================= TOPBAR ================= */
.topbar {
  background: var(--primary);
  color: #fff;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 24px;
  box-shadow: var(--shadow);
}
.brand-small {
  font-size: 16px;
  font-weight: 500;
  letter-spacing: .5px;
}
.brand-small b { color: var(--accent); }

#main-nav { display: flex; gap: 4px; flex: 1; }
#main-nav button {
  background: transparent;
  border: 0;
  color: #ffffff;
  padding: 8px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
}
#main-nav button:hover { background: rgba(255,255,255,.1); }
#main-nav button.active { background: rgba(255,255,255,.18); font-weight: 600; }

.user-info { display: flex; align-items: center; gap: 12px; font-size: 12px; }
.btn-link {
  background: transparent;
  border: 1px solid rgba(255,255,255,.4);
  color: #fff;
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
}
.btn-link:hover { background: rgba(255,255,255,.15); }

/* ================= CONTEÚDO ================= */
#content { padding: 24px; max-width: 1280px; margin: 0 auto; }
.page h2 { margin: 0 0 16px; color: var(--primary-dark); }

.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow);
  margin-bottom: 18px;
}
.card h3 { margin-top: 0; color: var(--primary-dark); font-size: 16px; }
.card h3 small { color: var(--muted); font-weight: 400; font-size: 11px; margin-left: 8px; }
.card h3.warn { color: var(--warn); }

/* ================= FORM ================= */
.grid-form {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px 18px;
}
.grid-form .col-2 { grid-column: span 2; }
.grid-form > div { display: flex; flex-direction: column; gap: 4px; }
.grid-form label { font-size: 12px; color: var(--muted); }
.grid-form input,
.grid-form select {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  background: #fff;
}
.grid-form input:focus,
.grid-form select:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  border-color: var(--accent);
}

.radio-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
}
.radio-group label { display: flex; align-items: center; gap: 6px; color: var(--text); font-size: 13px; }
.radio-group label.disabled { color: var(--muted); text-decoration: line-through; }

.actions {
  grid-column: 1 / -1;
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 6px;
}

/* ================= BOTÕES ================= */
.btn {
  padding: 9px 16px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  transition: filter .15s;
}
.btn:hover { filter: brightness(0.97); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success { background: var(--success); color: #fff; border-color: var(--success); }
.btn-danger  { background: var(--danger);  color: #fff; border-color: var(--danger);  }

/* ================= TABELAS ================= */
.filter-input {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 10px;
  font-size: 13px;
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.data-table th, .data-table td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}
.data-table th {
  background: #eef2f7;
  color: var(--primary-dark);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.data-table tbody tr:hover { background: #f8fafd; }
.data-table.clickable tbody tr { cursor: pointer; }
.data-table.clickable tbody tr.exported { opacity: .55; }
.data-table tbody tr.selected { background: #dbeafe !important; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
}
.badge.ok      { background: #d4edda; color: var(--success); }
.badge.locked  { background: #f1f3f5; color: var(--muted); }
.badge.pending { background: #fff3cd; color: var(--warn); }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

/* ================= MODAL ================= */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}
.modal.hidden { display: none; }
.modal-box {
  background: #fff;
  padding: 24px 26px;
  border-radius: 10px;
  max-width: 420px;
  width: 92%;
  box-shadow: 0 20px 60px rgba(0,0,0,.35);
}
.modal-box h3 { margin: 0 0 8px; color: var(--primary-dark); }
.modal-box p { margin: 0 0 18px; color: var(--text); white-space: pre-line; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; }

.hint { color: var(--muted); font-size: 11px; }

@media (max-width: 900px) {
  .grid-form { grid-template-columns: 1fr 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .grid-form { grid-template-columns: 1fr; }
  .grid-form .col-2 { grid-column: span 1; }
}