:root{
    --bg:#f4f7fb;
    --panel:#ffffff;
    --text:#0f172a;
    --muted:#64748b;
    --line:#e2e8f0;
    --primary:#1d4ed8;
    --primary-dark:#1e40af;
    --danger:#dc2626;
    --shadow:0 18px 50px rgba(15,23,42,.08);
    --radius:22px;
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;background:var(--bg);color:var(--text)}
a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}
.sidebar{position:fixed;inset:0 auto 0 0;width:280px;background:#0b1220;color:white;padding:22px;display:flex;flex-direction:column;gap:22px;z-index:5}
.brand{display:flex;gap:12px;align-items:center;padding-bottom:14px;border-bottom:1px solid rgba(255,255,255,.1)}
.brand-mark,.login-logo{width:48px;height:48px;border-radius:16px;background:linear-gradient(135deg,#3b82f6,#111827);display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:0 12px 30px rgba(59,130,246,.35)}
.brand b{display:block;font-size:18px}.brand span{display:block;color:#93a4bd;font-size:13px;margin-top:2px}
nav{display:grid;gap:8px}nav a{color:#dbeafe;padding:12px 14px;border-radius:14px;font-weight:650}nav a:hover,nav a.active{background:rgba(255,255,255,.1);text-decoration:none;color:#fff}
.side-user{margin-top:auto;border-top:1px solid rgba(255,255,255,.1);padding-top:16px;display:grid;gap:4px}.side-user span{font-weight:800}.side-user small{color:#93a4bd}.side-user a{color:#bfdbfe;margin-top:8px}
.main{margin-left:280px;padding:28px;min-height:100vh}.auth-main{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at top,#dbeafe,transparent 42%),var(--bg)}
.page-head{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:22px}.page-head h1{margin:0 0 8px;font-size:34px;letter-spacing:-.04em}.page-head p,.muted{color:var(--muted);margin:0;line-height:1.5}
.card,.login-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;margin-bottom:22px}.login-card{width:min(440px,100%);padding:34px}.login-card h1{margin:18px 0 8px}.login-card p{color:var(--muted);line-height:1.5}.login-card small{display:block;color:var(--muted);margin-top:16px;line-height:1.4}
.cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-bottom:22px}.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.settings-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-bottom:22px}
.metric{display:grid;gap:8px}.metric span{color:var(--muted);font-weight:700}.metric b{font-size:30px;letter-spacing:-.04em}.metric small{color:var(--muted);line-height:1.4}
h2{margin:0 0 18px;font-size:22px;letter-spacing:-.02em}h3{margin:0;font-size:18px}.card-title{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:10px}.supplier-card p,.layout-card p{margin:10px 0;color:var(--muted)}
.btn,button.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--line);background:#fff;color:var(--text);border-radius:13px;padding:10px 14px;font-weight:800;cursor:pointer;text-decoration:none;min-height:42px}.btn:hover{text-decoration:none;border-color:#cbd5e1}.btn.primary{background:var(--primary);border-color:var(--primary);color:white}.btn.primary:hover{background:var(--primary-dark)}.btn.danger{background:#fef2f2;border-color:#fecaca;color:var(--danger)}
.grid-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.stack{display:grid;gap:14px}.full{grid-column:1/-1}label{display:grid;gap:8px;font-weight:750;color:#1e293b}label small{font-weight:500;color:var(--muted)}input,select,textarea{width:100%;border:1px solid var(--line);border-radius:14px;background:#fff;padding:12px 13px;font:inherit;color:var(--text);outline:none}textarea{min-height:110px;resize:vertical}input:focus,select:focus,textarea:focus{border-color:#93c5fd;box-shadow:0 0 0 4px rgba(59,130,246,.12)}.check{display:flex;align-items:center;gap:10px}.check input{width:auto}.actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.upload-form{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.upload-form input{max-width:440px}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:18px}table{width:100%;border-collapse:collapse;background:#fff}th,td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}th{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);background:#f8fafc}td small{display:block;color:var(--muted);margin-top:4px}.row-actions{white-space:nowrap;display:flex;gap:12px;align-items:center}.row-actions form{display:inline}.link-danger{border:none;background:transparent;color:var(--danger);font:inherit;font-weight:700;cursor:pointer;padding:0}
.badge{display:inline-flex;align-items:center;border-radius:999px;padding:7px 10px;font-weight:800;font-size:12px;color:var(--badge);background:color-mix(in srgb,var(--badge) 14%,white);border:1px solid color-mix(in srgb,var(--badge) 30%,white)}.soft-badge{display:inline-flex;border-radius:999px;padding:7px 10px;background:#eef2ff;color:#3730a3;font-weight:800;font-size:12px}
.pipeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.pipe-item{border:1px solid var(--line);border-radius:18px;padding:16px;background:#f8fafc}.pipe-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.pipe-top span{width:12px;height:12px;border-radius:50%}.pipe-top b{font-size:26px}.pipe-item small{color:var(--muted);font-weight:700}
.settings-tile{display:grid;gap:8px;text-decoration:none;color:var(--text)}.settings-tile:hover{text-decoration:none;border-color:#bfdbfe}.settings-tile b{font-size:18px}.settings-tile span{color:var(--muted)}
.flash{position:sticky;top:16px;z-index:10;margin-bottom:18px;padding:14px 16px;border-radius:16px;font-weight:800;box-shadow:var(--shadow)}.flash.success{background:#ecfdf5;color:#047857;border:1px solid #a7f3d0}.flash.error{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca}
.calc-result{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:1100px){.cards,.calc-result{grid-template-columns:repeat(2,minmax(0,1fr))}.card-grid,.settings-grid,.pipeline{grid-template-columns:repeat(2,minmax(0,1fr))}.sidebar{width:240px}.main{margin-left:240px}}
@media (max-width:820px){.sidebar{position:static;width:auto;border-radius:0}.main{margin-left:0;padding:18px}.page-head{display:grid}.cards,.card-grid,.settings-grid,.pipeline,.grid-form,.calc-result{grid-template-columns:1fr}.row-actions{white-space:normal}.upload-form input{max-width:100%}}