:root {
  --surface-0: #f5f5f4; --surface-1: #ffffff; --surface-2: #fafafa;
  --text-primary: #1a1a18; --text-secondary: #5f5e5a; --text-muted: #888780;
  --text-danger: #a32d2d; --text-warning: #854f0b; --text-success: #3b6d11; --text-accent: #185fa5;
  --border: rgba(0,0,0,0.12); --border-strong: rgba(0,0,0,0.2);
  --border-danger: #f09595; --border-warning: #fac775; --border-success: #c0dd97; --border-accent: #85b7eb;
  --bg-danger: #fcebeb; --bg-warning: #faeeda; --bg-success: #eaf3de; --bg-accent: #e6f1fb;
  --font-sans: 'Segoe UI', system-ui, sans-serif; --radius: 8px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --surface-0: #141412; --surface-1: #1e1e1b; --surface-2: #252522;
    --text-primary: #e8e6df; --text-secondary: #9e9b93; --text-muted: #6b6963;
    --text-danger: #f09595; --text-warning: #fac775; --text-success: #c0dd97; --text-accent: #85b7eb;
    --border: rgba(255,255,255,0.1); --border-strong: rgba(255,255,255,0.18);
    --border-danger: #791f1f; --border-warning: #633806; --border-success: #27500a; --border-accent: #0c447c;
    --bg-danger: #501313; --bg-warning: #412402; --bg-success: #173404; --bg-accent: #042c53;
  }
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  background: var(--surface-0); color: var(--text-primary); font-family: var(--font-sans);
  font-size: 13px;
}
a { color: var(--text-accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 20px; font-weight: 500; }
h2 { font-size: 13px; font-weight: 500; color: var(--text-secondary); margin-bottom: 10px; display: flex; align-items: center; gap: 6px; }
:focus-visible { outline: 2px solid var(--border-accent); outline-offset: 2px; }

/* ── Layout geral ─────────────────────────────────────────── */
.app-layout { display: flex; min-height: 100vh; }

.sidebar {
  width: 220px; flex-shrink: 0; background: var(--surface-1); border-right: 0.5px solid var(--border);
  display: flex; flex-direction: column; padding: 18px 14px; gap: 4px;
}
.sidebar-brand { display: flex; align-items: center; gap: 8px; padding: 6px 8px 18px; }
.sidebar-brand img { width: 28px; height: 28px; border-radius: 6px; }
.sidebar-brand span { font-size: 15px; font-weight: 600; }
.sidebar-nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.sidebar-link {
  display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: 8px;
  color: var(--text-secondary); font-size: 13px; cursor: pointer;
}
.sidebar-link:hover { background: var(--surface-2); text-decoration: none; }
.sidebar-link.active { background: var(--bg-accent); color: var(--text-accent); font-weight: 500; }
.sidebar-link i { font-size: 17px; }
.sidebar-footer { border-top: 0.5px solid var(--border); padding-top: 10px; margin-top: 10px; }

.main-content { flex: 1; min-width: 0; padding: 26px 32px; max-width: 1280px; }

.page-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.page-header-title { display: flex; flex-direction: column; gap: 4px; }
.breadcrumb { font-size: 12px; color: var(--text-muted); }
.breadcrumb a { color: var(--text-muted); }

/* ── Cards e componentes ──────────────────────────────────── */
.card { background: var(--surface-1); border: 0.5px solid var(--border); border-radius: 12px; padding: 14px 16px; }
.card-clickable { cursor: pointer; transition: border-color .12s; }
.card-clickable:hover { border-color: var(--border-strong); }

.grid { display: grid; gap: 14px; }
.grid-clients { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.grid-machines { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.grid-stats { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); margin-bottom: 20px; }

.stat-card { background: var(--surface-1); border: 0.5px solid var(--border); border-radius: 12px; padding: 14px 16px; }
.stat-num { font-size: 22px; font-weight: 600; line-height: 1.1; }
.stat-label { font-size: 11px; color: var(--text-muted); margin-top: 4px; }

.badge {
  display: inline-flex; align-items: center; gap: 4px; font-size: 11px; font-weight: 500;
  padding: 3px 9px; border-radius: 999px; border: 0.5px solid;
}
.badge-ok { background: var(--bg-success); border-color: var(--border-success); color: var(--text-success); }
.badge-attention { background: var(--bg-warning); border-color: var(--border-warning); color: var(--text-warning); }
.badge-overdue { background: var(--bg-danger); border-color: var(--border-danger); color: var(--text-danger); }
.badge-never { background: var(--surface-2); border-color: var(--border); color: var(--text-muted); }

.score-ring-wrap { position: relative; flex-shrink: 0; }
.score-center { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.score-num { font-weight: 600; line-height: 1; font-variant-numeric: tabular-nums; }
.score-cap { font-size: 10px; color: var(--text-muted); }

.info-row { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 7px 0; border-bottom: 0.5px solid var(--border); font-size: 12px; }
.info-row:last-child { border-bottom: none; }
.info-row .lbl { color: var(--text-secondary); }

.alert-bar { display: flex; align-items: center; gap: 12px; padding: 11px 14px; border-radius: 12px; border: 0.5px solid; margin-bottom: 10px; font-size: 13px; }
.alert-crit { background: var(--bg-danger); border-color: var(--border-danger); color: var(--text-danger); }
.alert-warn { background: var(--bg-warning); border-color: var(--border-warning); color: var(--text-warning); }
.alert-bar i { font-size: 18px; flex-shrink: 0; }

/* ── Botoes e formularios ─────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 500;
  padding: 8px 14px; border-radius: 8px; border: 0.5px solid var(--border-strong);
  background: var(--surface-1); color: var(--text-primary); cursor: pointer;
}
.btn:hover { background: var(--surface-2); }
.btn-primary { background: var(--text-accent); border-color: var(--text-accent); color: #fff; }
.btn-primary:hover { opacity: .9; background: var(--text-accent); }
.btn-sm { padding: 5px 10px; font-size: 11px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

label { display: block; font-size: 12px; color: var(--text-secondary); margin-bottom: 5px; }
input[type=text], input[type=email], input[type=tel], input[type=password], input[type=search], textarea {
  width: 100%; padding: 9px 11px; border-radius: 8px; border: 0.5px solid var(--border-strong);
  background: var(--surface-0); color: var(--text-primary); font-size: 13px; font-family: inherit;
}
input:focus, textarea:focus { outline: 2px solid var(--border-accent); outline-offset: 0; }
.field { margin-bottom: 14px; }
.field-error { color: var(--text-danger); font-size: 12px; margin-top: 5px; }

table { width: 100%; border-collapse: collapse; font-size: 12px; }
th { text-align: left; color: var(--text-muted); font-weight: 500; padding: 8px 10px; border-bottom: 0.5px solid var(--border-strong); }
td { padding: 9px 10px; border-bottom: 0.5px solid var(--border); }
tr:last-child td { border-bottom: none; }

/* ── Modal ────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.45); display: none;
  align-items: center; justify-content: center; z-index: 50;
}
.modal-overlay.open { display: flex; }
.modal-box { background: var(--surface-1); border-radius: 14px; padding: 22px; width: 100%; max-width: 420px; border: 0.5px solid var(--border); }
.modal-box h2 { margin-bottom: 16px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; }

/* ── Login ────────────────────────────────────────────────── */
.login-screen { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
.login-box { width: 100%; max-width: 360px; background: var(--surface-1); border: 0.5px solid var(--border); border-radius: 14px; padding: 30px 28px; }
.login-logo { display: flex; flex-direction: column; align-items: center; gap: 10px; margin-bottom: 22px; }
.login-logo img { width: 52px; height: 52px; border-radius: 12px; }
.login-logo span { font-size: 16px; font-weight: 600; }
.login-hint { font-size: 12px; color: var(--text-muted); text-align: center; margin-top: 10px; }
.totp-input { text-align: center; font-size: 22px; letter-spacing: 8px; font-variant-numeric: tabular-nums; }
.qr-box { display: flex; flex-direction: column; align-items: center; gap: 10px; margin: 16px 0; }
.qr-box img { border-radius: 8px; border: 0.5px solid var(--border); }
.qr-secret { font-family: ui-monospace, monospace; font-size: 12px; background: var(--surface-2); padding: 6px 10px; border-radius: 6px; word-break: break-all; text-align: center; }

/* ── Diversos ─────────────────────────────────────────────── */
.muted { color: var(--text-muted); }
.text-success { color: var(--text-success); }
.text-warning { color: var(--text-warning); }
.text-danger { color: var(--text-danger); }
.delta-up { color: var(--text-success); }
.delta-down { color: var(--text-danger); }
.delta-flat { color: var(--text-muted); }
.empty-state { text-align: center; padding: 50px 20px; color: var(--text-muted); }
.empty-state i { font-size: 34px; display: block; margin-bottom: 10px; }

@media (max-width: 760px) {
  .app-layout { flex-direction: column; }
  .sidebar { width: 100%; flex-direction: row; overflow-x: auto; border-right: none; border-bottom: 0.5px solid var(--border); }
  .sidebar-nav { flex-direction: row; }
  .main-content { padding: 18px; }
}