:root{
  --bg:#0f1216; --surface:#171b21; --surface2:#1e242c; --line:#2a323d;
  --text:#e7ecf2; --muted:#8b97a6; --brand:#4f8cff; --brand-d:#3a6fd8;
  --ok:#2fbf71; --warn:#e0a53b; --danger:#e5533f; --radius:12px;
  --shadow:0 6px 24px rgba(0,0,0,.28);
}
@media (prefers-color-scheme: light){
  :root{
    --bg:#eef1f5; --surface:#ffffff; --surface2:#f4f6f9; --line:#e1e6ec;
    --text:#1b2430; --muted:#64707e; --shadow:0 6px 20px rgba(20,30,50,.08);
  }
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);color:var(--text);font-size:15px;line-height:1.45}
a{color:var(--brand);text-decoration:none}
h1,h2{margin:0}
small{font-size:.72em}
.muted{color:var(--muted)}
.mono{font-family:ui-monospace,"Cascadia Code",Consolas,monospace;font-size:.9em}
.nowrap{white-space:nowrap}
.r{text-align:right}
.pos{color:var(--ok);font-weight:600}
.neg{color:var(--danger);font-weight:600}
.pad{padding:16px}
.sub{margin-top:-6px;margin-bottom:18px}

/* topbar */
.topbar{display:flex;align-items:center;gap:12px;padding:0 18px;height:56px;
  background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}
.brand{font-weight:700;color:var(--text);display:flex;align-items:center;gap:8px;font-size:1.05rem}
.logo,.brand .logo{color:var(--brand)}
.spacer{flex:1}
.who{font-size:.9rem;text-align:right;line-height:1.1}.who small{display:block;color:var(--muted)}
.hamb{display:none;background:none;border:0;color:var(--text);font-size:1.4rem;cursor:pointer}

/* shell */
.shell{display:flex;min-height:calc(100vh - 56px)}
.sidebar{width:224px;flex:none;background:var(--surface);border-right:1px solid var(--line);padding:14px 10px}
.sidebar nav{display:flex;flex-direction:column;gap:2px;position:sticky;top:70px}
.sidebar a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:9px;color:var(--muted);font-weight:500}
.sidebar a:hover{background:var(--surface2);color:var(--text)}
.sidebar a.active{background:var(--brand);color:#fff}
.sidebar .ic{width:20px;text-align:center}
.content{flex:1;padding:24px;max-width:1200px;width:100%;margin:0 auto}

.page-title{font-size:1.5rem;margin-bottom:16px}
.page-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.page-head .page-title{margin:0}

/* cards / stats */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;margin-bottom:22px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px;
  display:flex;align-items:center;gap:14px}
.stat.link{cursor:pointer}.stat.link:hover{border-color:var(--brand)}
.stat-ic{width:44px;height:44px;flex:none;border-radius:11px;background:var(--surface2);
  display:grid;place-items:center;font-size:1.3rem}
.stat-ic.ok{color:var(--ok)}.stat-ic.warn{color:var(--warn)}
.stat-num{font-size:1.45rem;font-weight:700}
.stat-lbl{color:var(--muted);font-size:.82rem}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media (max-width:900px){.grid-2{grid-template-columns:1fr}}

/* panel */
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;margin-bottom:18px}
.panel.narrow{max-width:640px}
.panel-head{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--line)}
.panel-head h2{font-size:1.02rem}

/* tables */
.tbl{width:100%;border-collapse:collapse}
.tbl th,.tbl td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line)}
.tbl th{font-size:.74rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);font-weight:600}
.tbl tbody tr:last-child td{border-bottom:0}
.tbl tbody tr:hover{background:var(--surface2)}
.tbl tr.is-off{opacity:.5}

/* badges / tags */
.badge{display:inline-block;padding:2px 8px;border-radius:20px;font-size:.76rem;font-weight:600;
  background:var(--surface2);color:var(--muted)}
.badge.ok{background:rgba(47,191,113,.16);color:var(--ok)}
.badge.danger{background:rgba(229,83,63,.16);color:var(--danger)}
.tag{display:inline-block;padding:2px 9px;border-radius:6px;font-size:.76rem;font-weight:600;background:var(--surface2)}
.t-entrada{background:rgba(47,191,113,.16);color:var(--ok)}
.t-saida{background:rgba(229,83,63,.16);color:var(--danger)}
.t-devolucao_entrada{background:rgba(79,140,255,.16);color:var(--brand)}
.t-devolucao_saida{background:rgba(224,165,59,.18);color:var(--warn)}
.t-ajuste{background:rgba(139,151,166,.18);color:var(--muted)}
.st{display:inline-block;padding:2px 10px;border-radius:20px;font-size:.76rem;font-weight:600}
.st-pendente{background:rgba(224,165,59,.18);color:var(--warn)}
.st-em_conferencia{background:rgba(79,140,255,.16);color:var(--brand)}
.st-concluida{background:rgba(47,191,113,.16);color:var(--ok)}
.st-recusada{background:rgba(229,83,63,.16);color:var(--danger)}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 15px;border-radius:9px;border:1px solid var(--line);
  background:var(--surface2);color:var(--text);font-weight:600;font-size:.9rem;cursor:pointer;transition:.12s}
.btn:hover{border-color:var(--brand)}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn.primary:hover{background:var(--brand-d)}
.btn.ghost{background:transparent}
.btn.danger{color:var(--danger);border-color:var(--danger)}
.btn.danger.ghost:hover{background:rgba(229,83,63,.1)}
.btn.sm{padding:5px 10px;font-size:.82rem}
.btn.block{width:100%;justify-content:center}

/* forms */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding:16px}
.form-grid label{display:flex;flex-direction:column;gap:5px;font-size:.85rem;font-weight:600;color:var(--muted)}
.form-grid .col-full{grid-column:1/-1}
.form-grid .col2{grid-column:span 1}
@media (min-width:640px){.form-grid .col2{grid-column:span 1}}
input,select,textarea{font:inherit;padding:9px 11px;border-radius:8px;border:1px solid var(--line);
  background:var(--bg);color:var(--text);width:100%}
input:focus,select:focus,textarea:focus{outline:2px solid var(--brand);border-color:var(--brand)}
.form-actions{display:flex;gap:10px;flex-wrap:wrap;padding:16px;align-items:center}
.form-grid .form-actions{padding:0}

.searchbar,.filters{display:flex;gap:10px;margin-bottom:16px;flex-wrap:wrap}
.searchbar input{max-width:360px}
.filters select,.filters input{width:auto;min-width:150px}

/* key-value */
.kv{display:grid;gap:10px;padding:16px}
.kv > div{display:flex;justify-content:space-between;gap:16px;border-bottom:1px solid var(--line);padding-bottom:8px}
.kv > div:last-child{border-bottom:0;padding-bottom:0}
.kv span{color:var(--muted)}

/* tabs */
.tabs{display:flex;gap:4px;margin-bottom:16px;flex-wrap:wrap;border-bottom:1px solid var(--line)}
.tab{padding:9px 14px;color:var(--muted);font-weight:600;border-bottom:2px solid transparent;margin-bottom:-1px}
.tab.on{color:var(--brand);border-color:var(--brand)}

/* flash */
.flash{padding:12px 15px;border-radius:9px;margin-bottom:14px;font-weight:500;border:1px solid transparent}
.flash.success{background:rgba(47,191,113,.13);border-color:var(--ok);color:var(--ok)}
.flash.error{background:rgba(229,83,63,.12);border-color:var(--danger);color:var(--danger)}
.flash.info{background:rgba(79,140,255,.12);border-color:var(--brand);color:var(--brand)}

/* auth */
.center-screen{display:grid;place-items:center;min-height:100vh;padding:20px}
.card.auth{background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);
  padding:30px;width:100%;max-width:380px;text-align:center}
.card.auth h1{font-size:1.3rem;margin:6px 0}
.card.auth form,.card.auth label{text-align:left}
.card.auth label{display:flex;flex-direction:column;gap:6px;margin:14px 0;font-size:.85rem;font-weight:600;color:var(--muted)}
.auth-logo{font-size:2.4rem;color:var(--brand)}

/* modal */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.5);display:none;place-items:center;z-index:60;padding:20px}
.modal.open{display:grid}
.modal-box{background:var(--surface);border-radius:14px;padding:22px;width:100%;max-width:420px;box-shadow:var(--shadow)}
.modal-box h2{margin-bottom:6px}
.modal-box label{display:flex;flex-direction:column;gap:6px;margin:12px 0;font-size:.85rem;font-weight:600;color:var(--muted)}

/* sidebar mobile */
.backdrop{display:none}
@media (max-width:820px){
  .hamb{display:block}
  .sidebar{position:fixed;top:56px;bottom:0;left:0;transform:translateX(-100%);transition:.2s;z-index:40}
  body.nav-open .sidebar{transform:none}
  body.nav-open .backdrop{display:block;position:fixed;inset:56px 0 0 0;background:rgba(0,0,0,.4);z-index:35}
  .content{padding:16px}
  .form-grid{grid-template-columns:1fr}
  .who small{display:none}
}