:root{
  --bg: #f9fafb;
  --panel: #ffffff;
  --card: #ffffff;
  --muted: #6b7280;
  --text: #1f2937;
  --accent: #3b82f6;
  --accent-2: #06b6d4;
  --success: #16a34a;
  --danger: #dc2626;
  --radius: 12px;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background: var(--bg);
  color:var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  -webkit-font-smoothing:antialiased;
  line-height:1.5;
}

.container{
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
}

.header{
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(6px);
  background: rgba(255,255,255,0.9);
  border-bottom: 1px solid #e5e7eb;
}

.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  gap:16px;
  padding: 14px 24px;
}

.brand{
  display:flex; align-items:center; gap:10px;
  font-weight:700; letter-spacing:.3px;
}
.brand .dot{width:10px;height:10px;border-radius:999px;background:linear-gradient(135deg,var(--accent),var(--accent-2));}

.header a, a{ color: var(--muted); text-decoration: none;}
a:hover{ color: var(--text) }

.main{ padding-top: 20px; }

.card{
  background: var(--panel);
  border: 1px solid #e5e7eb;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.card-inner{ padding: 20px; }

h1,h2,h3{ margin:0 0 10px 0 }
h1{ font-size: clamp(20px, 2.4vw, 28px); }
h2{ font-size: clamp(18px, 2vw, 22px); color: var(--muted); font-weight:600}

.controls{
  display:grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 12px;
  align-items:end;
}
.controls .field{ grid-column: span 12; }
@media (min-width: 560px){
  .controls .field{ grid-column: span 6; }
}
@media (min-width: 880px){
  .controls .field{ grid-column: span 3; }
}

label{ display:block; font-size:.9rem; color: var(--muted); margin: 6px 0; }

input[type="text"], input[type="password"], input[type="url"], input[type="number"], select, textarea{
  width: 100%;
  background: #f9fafb;
  border: 1px solid #d1d5db;
  color: var(--text);
  border-radius: 8px;
  padding: 10px 12px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
input:focus, select:focus, textarea:focus{
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.25);
}
input::placeholder{ color: #9ca3af }

.btn{
  border:0;
  border-radius: 8px;
  padding: 10px 16px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  font-weight: 600;
  cursor: pointer;
  transition: transform .05s ease-in-out, filter .2s ease-in-out;
  box-shadow: 0 4px 12px rgba(59,130,246,0.3);
}
.btn:hover{ filter: brightness(1.05) }
.btn:active{ transform: translateY(1px) }
.btn.secondary{
  background: #f3f4f6;
  color: var(--text);
  border: 1px solid #d1d5db;
  box-shadow: none;
}
.btn.danger{ background: linear-gradient(135deg, #ef4444, #f59e0b) }

.actions{ display:flex; flex-wrap: wrap; gap: 10px; }

table{ width: 100%; border-collapse: collapse; border-spacing: 0; border-radius: 8px; overflow: hidden; }
thead th{ text-align:left; font-size:.9rem; color:var(--muted); border-bottom:1px solid #e5e7eb; }
td, th{ padding: 10px 12px; border-bottom: 1px solid #f3f4f6; }
tbody tr:hover{ background: #f9fafb }

.center, [align="center"]{ text-align:center }
.hidden{ display:none }
.sep{ height:1px; background:#e5e7eb; margin: 14px 0 }

.login-wrap{ display:grid; place-items:center; min-height:100vh; padding:24px; }
.login-card{ width:min(480px, 100%); }
.login-title{ text-align:center; margin-bottom: 18px }
.login-subtitle{ text-align:center; color: var(--muted); margin-bottom: 26px; font-size:.95rem }
.input-row{ display:flex; gap:10px }
.input-row > *{ flex:1 }
.small{ font-size:.9rem; color:var(--muted) }
footer.page{ margin-top: 30px; text-align:center; color: var(--muted); font-size:.85rem }