:root{
    --bg:#f4f6fb;
    --card:#ffffff;
    --text:#172033;
    --muted:#667085;
    --line:#dfe4ee;
    --primary:#1e63ff;
    --primary-dark:#164dcc;
    --danger:#d92d20;
    --success:#079455;
    --warning:#f79009;
    --shadow:0 16px 40px rgba(17,24,39,.08);
    --radius:18px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}
a{color:inherit;text-decoration:none}
img{max-width:100%}
body.login-body,body.installer-body{min-height:100vh;display:grid;place-items:center;padding:22px;background:linear-gradient(135deg,#111827,#1e63ff)}
.login-card,.installer-card{width:min(560px,100%);background:var(--card);border-radius:26px;padding:34px;box-shadow:0 28px 80px rgba(0,0,0,.25)}
.brand-mark{width:58px;height:58px;border-radius:18px;background:linear-gradient(135deg,#1e63ff,#00b3ff);display:grid;place-items:center;color:#fff;font-weight:800;letter-spacing:.5px;margin-bottom:18px}
h1,h2,h3{margin:0 0 12px;line-height:1.12}p{line-height:1.55}.muted{color:var(--muted)}
.app-shell{display:grid;grid-template-columns:270px minmax(0,1fr);min-height:100vh}.sidebar{background:#111827;color:#fff;padding:22px;position:sticky;top:0;height:100vh;overflow:auto}.sidebar .brand{display:flex;gap:12px;align-items:center;margin-bottom:28px}.sidebar .brand .brand-mark{margin:0;width:46px;height:46px;border-radius:14px}.brand-title{font-weight:800}.brand-subtitle{color:#a7b0c0;font-size:13px}.nav{display:grid;gap:8px}.nav a{padding:12px 14px;border-radius:13px;color:#d8dee9;font-weight:650}.nav a.active,.nav a:hover{background:rgba(255,255,255,.10);color:#fff}.sidebar-footer{margin-top:28px;border-top:1px solid rgba(255,255,255,.12);padding-top:18px;color:#cdd5e2;font-size:14px}.main{padding:28px}.topbar{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:24px}.topbar-actions{display:flex;gap:10px;flex-wrap:wrap}.grid{display:grid;gap:18px}.grid.cards{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}.metric{display:grid;gap:8px}.metric-value{font-size:34px;font-weight:850}.metric-label{color:var(--muted);font-size:14px}.table-wrap{overflow:auto;border-radius:var(--radius);border:1px solid var(--line);background:var(--card)}table{width:100%;border-collapse:collapse;min-width:760px}th,td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:middle}th{font-size:13px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);background:#f8fafc}tr:last-child td{border-bottom:none}.actions{display:flex;gap:8px;flex-wrap:wrap}.btn,button.btn{border:0;border-radius:13px;padding:11px 15px;font-weight:750;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;background:#eef2ff;color:#1e3a8a}.btn:hover{filter:brightness(.98)}.btn.primary{background:var(--primary);color:#fff}.btn.primary:hover{background:var(--primary-dark)}.btn.danger{background:#fee4e2;color:#912018}.btn.success{background:#dcfae6;color:#05603a}.btn.warning{background:#fef0c7;color:#93370d}.btn.ghost{background:#fff;border:1px solid var(--line);color:var(--text)}.btn.full{width:100%}.badge{display:inline-flex;align-items:center;border-radius:999px;padding:5px 10px;font-size:12px;font-weight:800}.badge.available{background:#dcfae6;color:#05603a}.badge.in_use{background:#fef0c7;color:#93370d}.badge.maintenance{background:#e0f2fe;color:#075985}.badge.disabled{background:#f2f4f7;color:#475467}.badge.open{background:#fef0c7;color:#93370d}.badge.closed{background:#dcfae6;color:#05603a}.badge.trial{background:#eef4ff;color:#3538cd}.badge.active{background:#dcfae6;color:#05603a}.badge.blocked{background:#fee4e2;color:#912018}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.form-grid.one{grid-template-columns:1fr}label{display:grid;gap:7px;font-weight:750;color:#344054;font-size:14px}input,select,textarea{width:100%;border:1px solid var(--line);border-radius:13px;padding:12px 13px;font:inherit;background:#fff;color:var(--text)}textarea{min-height:100px;resize:vertical}.section-title{font-weight:850;margin-top:8px;padding-top:12px;border-top:1px solid var(--line)}.alert{padding:13px 15px;border-radius:14px;margin:12px 0;font-weight:650}.alert.success{background:#dcfae6;color:#05603a}.alert.danger{background:#fee4e2;color:#912018}.alert.warning{background:#fef0c7;color:#93370d}.alert.info{background:#e0f2fe;color:#075985}.vehicle-card{display:grid;grid-template-columns:92px minmax(0,1fr);gap:14px;align-items:center}.vehicle-thumb{width:92px;height:72px;border-radius:14px;background:#eef2f7;object-fit:cover;border:1px solid var(--line)}.signature-pad{border:1px dashed #98a2b3;border-radius:16px;background:#fff;width:100%;height:190px;touch-action:none}.photo-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.photo-grid img,.signature-img{border:1px solid var(--line);border-radius:14px;background:#fff}.signature-img{max-height:130px;padding:8px}.print-header{display:none}.mobile-menu-toggle{display:none}.empty{padding:28px;text-align:center;color:var(--muted)}.filters{display:flex;gap:12px;flex-wrap:wrap;align-items:end}.filters label{min-width:180px}.usage-detail{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.kv{display:grid;gap:8px}.kv-row{display:grid;grid-template-columns:160px 1fr;gap:12px;border-bottom:1px solid var(--line);padding:10px 0}.kv-row:last-child{border-bottom:0}.vehicle-small{font-size:13px;color:var(--muted)}
@media(max-width:1100px){.grid.cards{grid-template-columns:repeat(2,minmax(0,1fr))}.usage-detail{grid-template-columns:1fr}.photo-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:820px){.app-shell{grid-template-columns:1fr}.sidebar{position:fixed;z-index:50;left:-290px;top:0;width:270px;transition:left .2s}.sidebar.open{left:0}.main{padding:18px}.mobile-menu-toggle{display:inline-flex}.topbar{align-items:stretch;flex-direction:column}.form-grid{grid-template-columns:1fr}.grid.cards{grid-template-columns:1fr}.login-card,.installer-card{padding:24px}.kv-row{grid-template-columns:1fr;gap:2px}.filters label{min-width:100%}}
@media print{body{background:#fff}.sidebar,.topbar-actions,.btn,.no-print{display:none!important}.app-shell{display:block}.main{padding:0}.card,.table-wrap{box-shadow:none;border:1px solid #bbb}.print-header{display:block;margin-bottom:20px}.signature-img{max-height:110px}.photo-grid{grid-template-columns:repeat(3,1fr)}}