:root {
    --vf-red: #9f1d20;
    --vf-red-dark: #6f1114;
    --vf-orange: #f36f21;
    --vf-bg: #f4f5f7;
    --vf-panel: #ffffff;
    --vf-text: #20242a;
    --vf-muted: #667085;
    --vf-line: #d9dee7;
    --vf-dark: #1c1f24;
}

* { box-sizing: border-box; }
body {
    margin: 0;
    min-height: 100vh;
    color: var(--vf-text);
    background: var(--vf-bg);
    font-family: "Segoe UI", Arial, sans-serif;
    font-size: 14px;
}
a { text-decoration: none; }
.app-shell { min-height: 100vh; display: flex; }
.sidebar {
    width: 264px;
    background: linear-gradient(180deg, var(--vf-dark), #2b1a1b 55%, var(--vf-red-dark));
    color: #fff;
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 20;
}
.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px;
    color: #fff;
    border-bottom: 1px solid rgba(255,255,255,.12);
}
.brand span {
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    border-radius: 8px;
    background: linear-gradient(180deg, var(--vf-orange), var(--vf-red));
    font-weight: 800;
}
.brand strong { letter-spacing: .02em; }
.sidebar-nav { padding: 10px; overflow-y: auto; }
.sidebar-nav a,
.logout {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 38px;
    padding: 9px 12px;
    color: rgba(255,255,255,.82);
    border-radius: 7px;
}
.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: rgba(255,255,255,.12);
    color: #fff;
}
.logout {
    margin: auto 10px 12px;
    color: #fff;
    border: 1px solid rgba(255,255,255,.14);
}
.main { margin-left: 264px; flex: 1; min-width: 0; }
.topbar {
    min-height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 20px;
    background: #fff;
    border-bottom: 1px solid var(--vf-line);
    position: sticky;
    top: 0;
    z-index: 10;
}
.topbar h1 { margin: 0; font-size: 20px; color: var(--vf-red-dark); font-weight: 750; }
.topbar span { color: var(--vf-muted); font-size: 12px; }
.topbar-user { display: flex; align-items: center; gap: 10px; }
.topbar-user i { font-size: 26px; color: var(--vf-red); }
.topbar-user small { display: block; color: var(--vf-muted); }
.sidebar-toggle { border: 1px solid var(--vf-line); background: #fff; border-radius: 6px; width: 36px; height: 36px; }
.content { padding: 18px 20px 28px; }
.vf-card {
    background: var(--vf-panel);
    border: 1px solid var(--vf-line);
    border-radius: 8px;
    padding: 16px;
    box-shadow: 0 1px 2px rgba(16,24,40,.04);
}
.vf-card + .vf-card { margin-top: 14px; }
.vf-card-title { margin: 0 0 12px; color: var(--vf-red-dark); font-weight: 750; font-size: 16px; }
.btn-vf {
    --bs-btn-bg: var(--vf-red);
    --bs-btn-border-color: var(--vf-red);
    --bs-btn-color: #fff;
    --bs-btn-hover-bg: var(--vf-red-dark);
    --bs-btn-hover-border-color: var(--vf-red-dark);
}
.btn-vf-outline {
    --bs-btn-bg: #fff;
    --bs-btn-border-color: #d0d5dd;
    --bs-btn-color: var(--vf-red);
    --bs-btn-hover-bg: #fff4ed;
    --bs-btn-hover-border-color: #f3a36d;
    --bs-btn-hover-color: var(--vf-red-dark);
}
.stat-grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 12px; }
.stat-card { background: #fff; border: 1px solid var(--vf-line); border-top: 4px solid var(--vf-red); padding: 14px; border-radius: 8px; }
.stat-card.warning { border-top-color: var(--vf-orange); }
.stat-card span { color: var(--vf-muted); display: block; min-height: 34px; }
.stat-card strong { display: block; margin-top: 8px; font-size: 28px; color: var(--vf-red-dark); }
.table thead th { background: #f8fafc; color: #596273; white-space: nowrap; font-weight: 650; }
.badge-soft { background: #fff4ed; color: var(--vf-red-dark); border: 1px solid #ffd6bd; }
.form-label { color: #485366; font-weight: 650; }
.action-bar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.filters { display: flex; gap: 8px; flex-wrap: wrap; }
.filters .form-control, .filters .form-select { min-width: 190px; }
.process-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.process-step { border: 1px solid var(--vf-line); padding: 10px; border-radius: 7px; background: #fff; }
.process-step.pass { border-left: 4px solid #198754; }
.process-step.fail { border-left: 4px solid #dc3545; }
.login-body {
    min-height: 100vh;
    display: grid;
    place-items: center;
    background:
        radial-gradient(circle at top left, rgba(243,111,33,.42), transparent 38%),
        linear-gradient(135deg, #2b1112, #741417 52%, #1c1f24);
}
.login-card { width: min(420px, calc(100vw - 28px)); background: #fff; padding: 28px; border-radius: 12px; box-shadow: 0 24px 70px rgba(0,0,0,.32); }
.login-brand { display: flex; gap: 12px; align-items: center; margin-bottom: 20px; }
.login-brand span { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 10px; color: #fff; background: linear-gradient(180deg, var(--vf-orange), var(--vf-red)); font-weight: 800; }
.login-brand strong { display: block; color: var(--vf-red-dark); font-size: 24px; }
.login-brand small, .login-hint { color: var(--vf-muted); }
.chart-box { height: 280px; }
.qr-img { width: 150px; height: 150px; border: 1px solid var(--vf-line); padding: 6px; background: #fff; }
@media print {
    .sidebar, .topbar, .no-print, .action-bar { display: none !important; }
    .main { margin-left: 0; }
    .content { padding: 0; }
    .vf-card { border: 0; box-shadow: none; }
}
@media (max-width: 1199px) {
    .stat-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .process-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 991px) {
    .sidebar { transform: translateX(-100%); transition: .2s ease; }
    .sidebar.open { transform: translateX(0); }
    .main { margin-left: 0; }
}
@media (max-width: 640px) {
    .content { padding: 12px; }
    .stat-grid, .process-grid { grid-template-columns: 1fr; }
    .topbar-user { display: none; }
    .filters .form-control, .filters .form-select { min-width: 100%; }
}