:root{
  --bg:#0b0f19;
  --bg-alt:#111726;
  --card:#151c2c;
  --card-hover:#1b2438;
  --border:#232c42;
  --text:#e7ecf7;
  --text-dim:#8b93a7;
  --accent:#5b8cff;
  --accent-2:#7ee3d6;
  --accent-grad:linear-gradient(135deg,#5b8cff,#7ee3d6);
  --danger:#ff6b81;
  --success:#4ade80;
  --radius:14px;
  --shadow:0 8px 30px rgba(0,0,0,.35);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  background:radial-gradient(circle at 20% -10%, #17203a 0%, var(--bg) 45%) fixed;
  color:var(--text);
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}

a{color:inherit;text-decoration:none}

.container{max-width:1100px;margin:0 auto;padding:0 20px}

/* ---------- Topbar ---------- */
.topbar{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 0;border-bottom:1px solid var(--border);
  margin-bottom:32px;
  animation:fadeDown .5s ease;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.15rem}
.brand .dot{width:10px;height:10px;border-radius:50%;background:var(--accent-grad);box-shadow:0 0 12px var(--accent)}
.nav{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.nav a, .nav button{
  color:var(--text-dim);padding:8px 14px;border-radius:999px;
  font-size:.9rem;transition:all .2s ease;border:none;background:transparent;cursor:pointer;font-family:inherit;
}
.nav a:hover, .nav button:hover{background:var(--card-hover);color:var(--text)}
.nav a.active{background:var(--card);color:var(--text)}

/* ---------- Cards & layout ---------- */
.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:22px;
  box-shadow:var(--shadow);
  transition:transform .25s ease, border-color .25s ease, background .25s ease;
  animation:fadeUp .4s ease both;
}
.card:hover{border-color:#2c3855}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}

.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;flex-wrap:wrap;gap:12px}
.page-header h1{margin:0;font-size:1.6rem}
.subtitle{color:var(--text-dim);margin-top:4px;font-size:.92rem}

/* ---------- Product card ---------- */
.product-card{
  display:flex;flex-direction:column;gap:12px;position:relative;overflow:hidden;
}
.product-card img{
  width:100%;height:150px;object-fit:contain;background:#fff;border-radius:10px;padding:8px;
}
.product-card .name{font-weight:600;font-size:.95rem;line-height:1.35;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.6em}
.price-row{display:flex;align-items:baseline;justify-content:space-between}
.price{font-size:1.5rem;font-weight:800;background:var(--accent-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.badge{font-size:.72rem;padding:3px 9px;border-radius:999px;font-weight:600}
.badge.down{background:rgba(74,222,128,.15);color:var(--success)}
.badge.up{background:rgba(255,107,129,.15);color:var(--danger)}
.badge.stale{background:rgba(139,147,167,.15);color:var(--text-dim)}
.meta{font-size:.78rem;color:var(--text-dim);display:flex;justify-content:space-between}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:10px;border:none;font-weight:600;font-size:.92rem;
  cursor:pointer;transition:transform .15s ease, box-shadow .15s ease, opacity .15s ease;
  font-family:inherit;
}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--accent-grad);color:#0b0f19;box-shadow:0 4px 18px rgba(91,140,255,.35)}
.btn-primary:hover{box-shadow:0 6px 24px rgba(91,140,255,.5)}
.btn-ghost{background:var(--card-hover);color:var(--text);border:1px solid var(--border)}
.btn-ghost:hover{background:#20293f}
.btn-danger{background:rgba(255,107,129,.12);color:var(--danger)}
.btn-danger:hover{background:rgba(255,107,129,.22)}
.btn-sm{padding:7px 14px;font-size:.82rem}
.btn-block{width:100%}

/* ---------- Forms ---------- */
label{display:block;font-size:.85rem;color:var(--text-dim);margin-bottom:6px;margin-top:16px}
label:first-child{margin-top:0}
input[type=text], input[type=password], input[type=number], input[type=url], select{
  width:100%;padding:12px 14px;border-radius:10px;border:1px solid var(--border);
  background:var(--bg-alt);color:var(--text);font-size:.95rem;transition:border-color .2s ease, box-shadow .2s ease;
  font-family:inherit;
}
input:focus, select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(91,140,255,.15)}

.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.auth-card{width:100%;max-width:400px;animation:fadeUp .5s ease both}
.auth-card h1{text-align:center;font-size:1.4rem;margin-bottom:4px}
.auth-card .subtitle{text-align:center;margin-bottom:20px}

.flash{padding:12px 16px;border-radius:10px;margin-bottom:18px;font-size:.9rem;animation:fadeUp .3s ease both}
.flash.error{background:rgba(255,107,129,.12);color:var(--danger);border:1px solid rgba(255,107,129,.3)}
.flash.success{background:rgba(74,222,128,.12);color:var(--success);border:1px solid rgba(74,222,128,.3)}

table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:12px 10px;border-bottom:1px solid var(--border);font-size:.9rem}
th{color:var(--text-dim);font-weight:600;font-size:.78rem;text-transform:uppercase;letter-spacing:.03em}
tr{transition:background .15s ease}
tbody tr:hover{background:var(--card-hover)}

.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:14px;margin:20px 0}
.stat-box{background:var(--bg-alt);border:1px solid var(--border);border-radius:10px;padding:14px;text-align:center}
.stat-box .val{font-size:1.3rem;font-weight:700}
.stat-box .lbl{font-size:.75rem;color:var(--text-dim);margin-top:2px}

.empty-state{text-align:center;padding:60px 20px;color:var(--text-dim)}
.empty-state .icon{font-size:2.5rem;margin-bottom:10px}

.pulse{animation:pulse 1.6s ease-in-out infinite}

@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeDown{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}

.toast{
  position:fixed;bottom:24px;right:24px;background:var(--card);border:1px solid var(--border);
  padding:14px 18px;border-radius:10px;box-shadow:var(--shadow);animation:fadeUp .3s ease both;z-index:50;
}

@media(max-width:640px){
  .topbar{flex-direction:column;align-items:flex-start;gap:12px}
  .nav{width:100%}
}