:root {
  --blue-900: #254a68;
  --blue-700: #588cb5;
  --blue-500: #80a9ca;
  --blue-100: #e5eef5;
  --status-ok: #2f6b4f;
  --status-ok-bg: #e6f2eb;
  --amber: #d59a20;
  --amber-bg: #fff6e0;
  --orange: #d5763a;
  --orange-bg: #fdeee3;
  --red: #c0392b;
  --blue: #3a7bd5;
  --bg: #f4f5f6;
  --card: #ffffff;
  --border: #e2e6ea;
  --text: #26313a;
  --muted: #6b7580;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(20, 26, 30, 0.08), 0 1px 2px rgba(20, 26, 30, 0.06);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

/* ---- Shell ---- */
.app-shell { display: flex; min-height: 100vh; }
.app-shell.hidden { display: none; }

.sidebar {
  width: 250px;
  background: var(--blue-900);
  color: #fff;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
}
.sidebar-header { padding: 22px 20px 14px; }
.brand { font-size: 22px; font-weight: 700; letter-spacing: 0.5px; }
.brand span { color: #a9cfe3; font-weight: 400; }
.brand-sub { font-size: 12.5px; color: #b7cddb; margin-top: 2px; }

.nav { display: flex; flex-direction: column; gap: 2px; padding: 10px 12px; flex: 1; }
.nav-link {
  display: flex; align-items: center;
  color: #dbe8f0; text-decoration: none;
  padding: 12px 14px; border-radius: 8px; font-size: 16.5px; font-weight: 500;
  transition: background 0.15s;
}
.nav-link:hover { background: rgba(255,255,255,0.08); }
.nav-link.active { background: var(--blue-700); color: #fff; font-weight: 600; }
.nav.hidden { display: none; }
.nav-back { color: #a9cfe3; margin-bottom: 6px; padding-bottom: 12px; border-bottom: 1px solid rgba(255,255,255,0.12); border-radius: 0; }
.nav-back:hover { background: rgba(255,255,255,0.08); color: #fff; }
.sidebar-footer { padding: 14px 20px 20px; font-size: 11.5px; color: #9db8c9; }

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 24px; background: var(--card); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 5;
}
.topbar-title { font-weight: 600; color: var(--blue-900); }
#menu-toggle { display: none; }

.content { padding: 24px; flex: 1; }

/* ---- Page ---- */
.page-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.header-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.page-header h2 { margin: 0 0 4px; font-size: 22px; color: var(--blue-900); }
.muted { color: var(--muted); font-size: 13.5px; }

.toolbar { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
.toolbar input[type="search"], .toolbar input[type="date"], .toolbar select { padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; min-width: 220px; background: #fff; }
.toolbar input[type="date"] { min-width: 150px; }
#cons-periodo { border-radius: 20px; min-width: 160px; }

/* ---- Buttons ---- */
.btn { border: none; border-radius: 8px; padding: 10px 16px; font-size: 14px; font-weight: 600; cursor: pointer; display: inline-flex; align-items: center; gap: 6px; transition: filter 0.1s; }
.btn:hover { filter: brightness(0.95); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--blue-700); color: #fff; }
.btn-secondary { background: var(--blue-100); color: var(--blue-900); }
.btn-ghost { background: transparent; color: var(--muted); }
.btn-danger { background: var(--red); color: #fff; }

.icon-btn { background: none; border: none; font-size: 16px; cursor: pointer; padding: 6px 8px; border-radius: 6px; color: var(--muted); }
.icon-btn:hover { background: var(--blue-100); color: var(--blue-900); }
.icon-danger:hover { background: #fbeceb; color: var(--red); }

/* ---- Table ---- */
.table-wrap { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); overflow: auto; box-shadow: var(--shadow); }
.data-table { width: 100%; border-collapse: collapse; font-size: 13.8px; }
.data-table th { text-align: left; padding: 12px 14px; background: var(--blue-100); color: var(--blue-900); font-weight: 700; white-space: nowrap; position: sticky; top: 0; }
.data-table td { padding: 10px 14px; border-top: 1px solid var(--border); white-space: nowrap; }
.data-table tbody tr:hover { background: #fafbfa; }
.col-actions { text-align: right; white-space: nowrap; }
.empty-cell { text-align: center; color: var(--muted); padding: 28px !important; }

.row-ok td { background: var(--status-ok-bg); }
.row-warn td { background: var(--amber-bg); }
.row-danger td { background: var(--orange-bg); }
.neg { color: var(--red); font-weight: 600; }
.pos { color: var(--status-ok); font-weight: 600; }

/* ---- Cards ---- */
.cards-row { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }
.stat-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 18px; min-width: 160px; box-shadow: var(--shadow); }
.stat-label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.stat-value { display: block; font-size: 20px; font-weight: 700; color: var(--blue-900); }
.stat-value.neg { color: var(--red); }
.stat-value.pos { color: var(--status-ok); }
.stat-card-clickable { cursor: pointer; transition: box-shadow 0.15s, transform 0.15s; }
.stat-card-clickable:hover { box-shadow: 0 2px 8px rgba(20, 26, 30, 0.18); transform: translateY(-1px); }

.chart-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.chart-card h3 { margin: 0 0 14px; font-size: 15px; color: var(--blue-900); }
.chart-card + .chart-card { margin-top: 18px; }

.chart-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 16px; }
.chart-grid-2 h4 { margin: 0 0 10px; font-size: 13.5px; color: var(--blue-900); }
@media (max-width: 880px) { .chart-grid-2 { grid-template-columns: 1fr; } }

.tabs { display: flex; gap: 6px; margin-bottom: 16px; border-bottom: 1px solid var(--border); }
.tab-btn { background: none; border: none; padding: 10px 16px; font-size: 14px; font-weight: 600; color: var(--muted); cursor: pointer; border-bottom: 2px solid transparent; }
.tab-btn.active { color: var(--blue-700); border-bottom-color: var(--blue-700); }

/* ---- Modal ---- */
.modal-backdrop { position: fixed; inset: 0; background: rgba(15, 25, 20, 0.45); display: flex; align-items: center; justify-content: center; z-index: 50; padding: 20px; }
.modal-backdrop.hidden { display: none; }
.modal-box { background: #fff; border-radius: 12px; width: 100%; max-width: 480px; max-height: 90vh; overflow: auto; box-shadow: 0 10px 40px rgba(0,0,0,0.25); }
.modal-box.modal-wide { max-width: 900px; }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--border); }
.modal-header h3 { margin: 0; font-size: 17px; color: var(--blue-900); }
.modal-form { padding: 18px 20px; }
.modal-footer { display: flex; justify-content: flex-end; gap: 10px; margin-top: 18px; }
.modal-footer .btn-danger { margin-right: auto; }
.locked-message { color: var(--red); font-weight: 700; margin-right: auto; align-self: center; }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { display: flex; flex-direction: column; gap: 5px; }
.field-span2 { grid-column: 1 / -1; }
.field label { font-size: 12.5px; font-weight: 600; color: var(--muted); }
.field input, .field select, .field textarea { padding: 9px 11px; border: 1px solid var(--border); border-radius: 7px; font-size: 14px; font-family: inherit; }
.computed-value { padding: 9px 11px; background: var(--blue-100); border-radius: 7px; font-weight: 700; color: var(--blue-900); }
.field input[readonly] { background: var(--blue-100); color: var(--blue-900); font-weight: 700; cursor: not-allowed; }
.stock-hint { font-size: 12.5px; color: var(--muted); }
.stock-hint-warn { color: var(--red); font-weight: 600; }

.autocomplete-wrap { position: relative; }
.autocomplete-list { position: absolute; top: 100%; left: 0; right: 0; margin-top: 4px; background: #fff; border: 1px solid var(--border); border-radius: 8px; max-height: 220px; overflow-y: auto; box-shadow: var(--shadow); z-index: 60; }
.autocomplete-list.hidden { display: none; }
.autocomplete-item { padding: 9px 12px; font-size: 14px; cursor: pointer; }
.autocomplete-item:hover { background: var(--blue-100); color: var(--blue-900); }
.autocomplete-empty { padding: 9px 12px; font-size: 13px; color: var(--muted); }

/* ---- Backup page ---- */
.backup-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.backup-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.backup-card h3 { margin: 0 0 8px; font-size: 15px; color: var(--blue-900); }
.backup-card p { margin: 0 0 14px; }
.backup-danger { border-color: #f0c9c0; background: #fff9f7; }
.hidden-input { display: none; }

/* ---- Toasts ---- */
.toast-container { position: fixed; top: 16px; right: 16px; z-index: 100; display: flex; flex-direction: column; gap: 8px; }
.toast { background: var(--blue-900); color: #fff; padding: 10px 16px; border-radius: 8px; font-size: 13.5px; box-shadow: var(--shadow); opacity: 0; transform: translateY(-6px); transition: all 0.2s; }
.toast.show { opacity: 1; transform: translateY(0); }
.toast-error { background: var(--red); }

/* ---- Login ---- */
.login-screen {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: var(--blue-900);
}
.login-screen.hidden { display: none; }
.login-box {
  background: #fff; border-radius: 14px; padding: 32px 30px; width: 100%; max-width: 340px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.25);
}
.login-box .brand { color: var(--blue-900); font-size: 24px; }
.login-box .brand span { color: var(--blue-700); }
.login-box .field { margin-bottom: 14px; }
.login-submit { width: 100%; justify-content: center; margin-top: 6px; }
.login-error { color: var(--red); font-size: 13px; min-height: 16px; margin-bottom: 6px; }
#sidebar-org { font-weight: 600; color: #dbe8f0; margin-bottom: 4px; }

/* ---- Responsive ---- */
@media (max-width: 880px) {
  .sidebar { position: fixed; left: -260px; z-index: 40; transition: left 0.2s; box-shadow: 0 0 0 rgba(0,0,0,0); }
  .sidebar.open { left: 0; box-shadow: 4px 0 20px rgba(0,0,0,0.25); }
  #menu-toggle { display: inline-flex; }
  .form-grid { grid-template-columns: 1fr; }
  .toolbar input[type="search"], .toolbar input[type="date"], .toolbar select { min-width: 0; flex: 1; }
}