:root{
  --bg:#eef2f7;
  --surface:#f8fafc;
  --card:#ffffff;
  --ink:#111827;
  --muted:#64748b;
  --line:#dbe3ef;
  --brand:#0f172a;
  --accent:#2563eb;
  --accent-soft:#dbeafe;
  --green:#16a34a;
  --green-soft:#dcfce7;
  --red:#dc2626;
  --red-soft:#fee2e2;
  --amber:#d97706;
  --amber-soft:#fef3c7;
  --shadow:0 18px 44px rgba(15,23,42,.08);
  color-scheme:light;
}

:root[data-theme="dark"]{
  --bg:#090f1c;
  --surface:#0f172a;
  --card:#111c31;
  --ink:#e5e7eb;
  --muted:#9aa8bd;
  --line:#263449;
  --brand:#e5e7eb;
  --accent:#60a5fa;
  --accent-soft:#172f52;
  --green:#4ade80;
  --green-soft:#13351f;
  --red:#f87171;
  --red-soft:#3a1518;
  --amber:#fbbf24;
  --amber-soft:#3d2b0b;
  --shadow:0 18px 44px rgba(0,0,0,.26);
  color-scheme:dark;
}

*{box-sizing:border-box}
[hidden]{display:none!important}
body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--ink)}
button,select,input{font:inherit}
button:disabled{opacity:.55;cursor:not-allowed}

.auth-screen{min-height:100vh;display:grid;place-items:center;padding:20px;background:linear-gradient(145deg,var(--bg),var(--surface))}
.auth-card{width:min(460px,100%);background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:var(--shadow)}
.auth-brand{margin-bottom:22px}
.auth-form{display:grid;gap:14px}
.auth-form h1{font-size:1.8rem}
.auth-form label{display:grid;gap:6px;font-weight:800;color:var(--ink)}
.auth-note{margin:0;color:var(--muted);font-size:.9rem;line-height:1.45}
.auth-error{min-height:20px;margin:0;color:var(--red);font-weight:800}
.link-btn{border:0;background:transparent;color:var(--accent);font-weight:800;cursor:pointer;padding:4px 0;text-align:left}
.auth-links{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.password-strength{display:grid;gap:8px}
.strength-track{height:8px;border-radius:999px;background:var(--line);overflow:hidden}
.strength-track span{display:block;width:0;height:100%;border-radius:inherit;background:var(--red);transition:width .18s ease,background .18s ease}
.password-strength.is-medium .strength-track span{background:var(--amber)}
.password-strength.is-strong .strength-track span{background:var(--green)}
.password-strength p{margin:0;color:var(--muted);font-size:.86rem;line-height:1.4}
.password-rules{display:grid;gap:6px;margin:0;padding:0;list-style:none;color:var(--muted);font-size:.86rem}
.password-rules li::before{content:"- ";font-weight:900}
.password-rules li.valid{color:var(--green);font-weight:800}
.password-rules li.valid::before{content:"OK ";font-weight:900}
body.authenticated .auth-screen{display:none}
body.auth-locked .app-shell{display:none}

.app-shell{min-height:100vh;display:grid;grid-template-columns:280px minmax(0,1fr)}
.sidebar{background:var(--surface);border-right:1px solid var(--line);padding:20px;position:sticky;top:0;height:100vh;z-index:20}
.brand{display:flex;gap:12px;align-items:center;margin-bottom:28px}
.brand-mark{display:grid;place-items:center;width:46px;height:46px;overflow:hidden}
.brand-mark img{display:block;width:100%;height:100%;object-fit:contain}
.brand p{margin:0 0 2px;color:var(--muted);font-size:.78rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em}
.brand strong{font-size:1.05rem}
.nav-list{display:grid;gap:8px}
.nav-item{width:100%;border:0;border-radius:12px;background:transparent;color:var(--muted);padding:12px 14px;text-align:left;font-weight:800;cursor:pointer}
.nav-item:hover{background:var(--accent-soft);color:var(--ink)}
.nav-item.active{background:var(--brand);color:var(--surface)}
.logout-btn{width:100%;border:1px solid var(--line);border-radius:12px;background:transparent;color:var(--muted);padding:11px 14px;text-align:left;font-weight:800;cursor:pointer;margin-top:18px}
.logout-btn:hover{color:var(--red);border-color:var(--red)}
.sidebar-backdrop{display:none}
.sidebar-backdrop[hidden]{display:none}

.workspace{min-width:0}
.topbar{background:var(--card);border-bottom:1px solid var(--line);padding:18px 24px;display:flex;justify-content:space-between;gap:18px;align-items:center;position:sticky;top:0;z-index:10}
.menu-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;background:var(--card);cursor:pointer;padding:10px}
.menu-toggle span{display:block;height:2px;background:var(--ink);border-radius:2px;margin:5px 0}
h1{margin:0;font-size:clamp(1.55rem,2.4vw,2.25rem)}
h2{margin:0;font-size:1.02rem}
.eyebrow{margin:0 0 4px;color:var(--muted);font-weight:800;text-transform:uppercase;letter-spacing:.08em;font-size:.74rem}
.container{padding:24px;max-width:1380px;margin:auto}
.view{display:none}
.view.active{display:block}
.month-control{display:flex;gap:10px;align-items:end;flex-wrap:wrap;justify-content:flex-end}
.month-control label,.setting-card label{display:block;font-size:.8rem;color:var(--muted);font-weight:800;margin-bottom:6px}
select,input{width:100%;border:1px solid var(--line);border-radius:12px;padding:10px 12px;background:var(--card);color:var(--ink)}
.month-control select{min-width:160px}

.btn{border:0;border-radius:12px;background:var(--accent);color:white;padding:10px 14px;font-weight:800;cursor:pointer;box-shadow:0 10px 20px rgba(37,99,235,.18)}
.btn.secondary{background:var(--accent-soft);color:var(--brand);box-shadow:none}
.btn.danger{background:var(--red);color:white}
.btn.small{padding:8px 10px;font-size:.85rem}
.btn.icon{background:transparent;color:var(--red);box-shadow:none;padding:4px 8px;font-size:1.25rem}

.kpi-grid{display:grid;grid-template-columns:repeat(4,minmax(160px,1fr));gap:14px;margin-bottom:18px}
.kpi{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px;box-shadow:var(--shadow);min-height:112px}
.kpi span{display:block;color:var(--muted);font-size:.82rem;font-weight:800}
.kpi strong{display:block;font-size:1.24rem;margin-top:10px;line-height:1.2;overflow-wrap:anywhere}
.kpi.positive strong{color:var(--green)}
.kpi.warning strong{color:var(--amber)}
.kpi.danger strong{color:var(--red)}

.panel{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:var(--shadow)}
.insight-panel,.actions-panel{display:flex;justify-content:space-between;align-items:center;gap:18px}
.insight-panel p,.actions-panel p,.section-head p,.danger-zone p{margin:6px 0 0;color:var(--muted)}
.progress-block{min-width:280px}
.progress-label{display:flex;justify-content:space-between;gap:12px;margin-bottom:8px;color:var(--muted);font-size:.86rem;font-weight:800}
.progress-track{height:10px;border-radius:999px;background:var(--line);overflow:hidden}
.progress-track span{display:block;height:100%;border-radius:inherit;background:var(--green);transition:width .2s ease}
.actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.file-label{display:inline-flex;align-items:center}
.module-grid,.settings-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.settings-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
.section-head{display:flex;justify-content:space-between;align-items:flex-start;gap:14px;margin-bottom:14px}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:14px}
table{width:100%;border-collapse:collapse}
th,td{border-bottom:1px solid var(--line);padding:12px 10px;text-align:left;vertical-align:middle}
tr:last-child td{border-bottom:0}
th{font-size:.74rem;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;background:var(--surface)}
td.value{font-weight:800;white-space:nowrap}
.paid,.pending{display:inline-flex;align-items:center;gap:8px;font-weight:800;white-space:nowrap}
.paid{color:var(--green)}
.pending{color:var(--amber)}
.empty{color:var(--muted);font-style:italic;padding:18px 10px}
.setting-card{display:grid;gap:10px;align-content:start}
.inline-action{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px}
.danger-zone{border-color:color-mix(in srgb, var(--red) 34%, var(--line))}

dialog{border:0;border-radius:18px;padding:0;box-shadow:0 30px 80px rgba(15,23,42,.3);width:min(460px,92vw);background:var(--card);color:var(--ink)}
dialog::backdrop{background:rgba(15,23,42,.62)}
.dialog-card{padding:22px;display:grid;gap:14px}
.dialog-card label{display:grid;gap:6px;font-weight:800;color:var(--ink)}
.check-row{display:flex!important;align-items:center;gap:10px}
.check-row input{width:auto}
.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:8px}

@media(max-width:1180px){
  .kpi-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .settings-grid{grid-template-columns:1fr 1fr}
}

@media(max-width:860px){
  .app-shell{display:block}
  .sidebar{position:fixed;inset:0 auto 0 0;width:min(320px,86vw);transform:translateX(-105%);transition:transform .2s ease;box-shadow:0 24px 70px rgba(15,23,42,.28)}
  .menu-open .sidebar{transform:translateX(0)}
  .sidebar-backdrop{display:block;position:fixed;inset:0;background:rgba(15,23,42,.5);z-index:15}
  .topbar{align-items:flex-start}
  .menu-toggle{display:block;flex:0 0 auto}
  .month-control{width:100%;justify-content:flex-start}
  .container{padding:16px}
  .module-grid,.settings-grid{grid-template-columns:1fr}
  .insight-panel,.actions-panel{align-items:flex-start;flex-direction:column}
  .progress-block{min-width:0;width:100%}
}

@media(max-width:600px){
  .topbar{padding:14px;display:grid;grid-template-columns:auto 1fr;align-items:center}
  .month-control{grid-column:1 / -1;display:grid;grid-template-columns:1fr auto}
  .month-control label{grid-column:1 / -1}
  .kpi-grid{grid-template-columns:1fr}
  .kpi{min-height:auto}
  .actions{width:100%;display:grid}
  .section-head{align-items:stretch;flex-direction:column}
  .section-head .btn{width:max-content}
  th:nth-child(1),td:nth-child(1){min-width:150px}
  .inline-action{grid-template-columns:1fr}
  .dialog-actions{display:grid;grid-template-columns:1fr 1fr}
}