:root{
  --bg: #f3f4f6;
  --panel: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --border: rgba(15, 23, 42, 0.14);

  --primary: #2563eb;
  --primary-ink: #ffffff;

  --good-bg: rgba(16, 185, 129, 0.12);
  --good-ink: #047857;

  --warn-bg: rgba(245, 158, 11, 0.14);
  --warn-ink: #92400e;

  --bad-bg: rgba(239, 68, 68, 0.12);
  --bad-ink: #b91c1c;

  --shadow: 0 10px 30px rgba(2, 6, 23, 0.08);
}

[data-theme="dark"]{
  --bg: #0b1220;
  --panel: #0f172a;
  --text: #e5e7eb;
  --muted: #a1a1aa;
  --border: rgba(226, 232, 240, 0.16);

  --primary: #60a5fa;
  --primary-ink: #081225;

  --good-bg: rgba(16, 185, 129, 0.14);
  --good-ink: #34d399;

  --warn-bg: rgba(245, 158, 11, 0.16);
  --warn-ink: #fbbf24;

  --bad-bg: rgba(239, 68, 68, 0.16);
  --bad-ink: #f87171;

  --shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

*{ box-sizing: border-box; }
html, body{ height: 100%; }
body{
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
}

.skip-link{
  position: absolute;
  left: -999px;
  top: 10px;
  background: var(--panel);
  color: var(--text);
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  z-index: 50;
}
.skip-link:focus{ left: 12px; }

.topbar{
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

.logo{
  width: 70px;
  height: auto;
  border-radius: 90px;
  display: grid;
  place-items: center;
  display: block;
}

.container{
  max-width: 980px;
  margin: 26px auto;
  padding: 0 16px 40px;
}

.card{
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 20px;
}

.h2{
  margin: 0 0 8px;
  font-size: 1.35rem;
}
.h3{
  margin: 18px 0 10px;
  font-size: 1.05rem;
}

.muted{ color: var(--muted); }

.grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 14px;
}
@media (max-width: 820px){
  .grid{ grid-template-columns: 1fr; }
  .topbar{ flex-direction: column; align-items: flex-start; }
}

.field label{
  display: block;
  font-weight: 700;
  margin-bottom: 6px;
}

.field .inline{
  display: flex;
  gap: 10px;
  align-items: center;
}

.input, .select{
  width: 100%;
  padding: 11px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  outline: none;
}
.input::placeholder{ color: color-mix(in srgb, var(--muted) 65%, transparent); }
.input:focus, .select:focus{
  border-color: color-mix(in srgb, var(--primary) 60%, var(--border));
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--primary) 18%, transparent);
}

.select{ appearance: none; }

.suffix{
  padding-right: 2px;
  color: var(--muted);
  font-weight: 700;
  white-space: nowrap;
}

.hint{
  margin-top: 6px;
  font-size: 0.92rem;
  color: var(--muted);
}

.actions{
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.btn{
  border: 1px solid transparent;
  background: var(--primary);
  color: var(--primary-ink);
  padding: 11px 14px;
  border-radius: 12px;
  font-weight: 800;
  cursor: pointer;
}
.btn:hover{ filter: brightness(1.02); }
.btn:active{ transform: translateY(1px); }

.btn-ghost{
  background: transparent;
  border-color: var(--border);
  color: var(--text);
  font-weight: 800;
}
.btn:disabled{
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.notice{
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  margin-top: 14px;
}
.notice-error{
  background: rgba(239, 68, 68, 0.10);
  border-color: rgba(239, 68, 68, 0.35);
  color: var(--bad-ink);
}

.result{
  margin-top: 16px;
  padding: 14px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--panel) 80%, transparent);
}

.result-row{
  display: flex;
  gap: 12px;
  align-items: baseline;
  justify-content: space-between;
  padding: 8px 4px;
  border-bottom: 1px dashed color-mix(in srgb, var(--border) 70%, transparent);
}
.result-row:last-child{ border-bottom: none; }

.result-label{
  color: var(--muted);
  font-weight: 700;
}
.result-value{
  font-weight: 900;
  text-align: right;
}

.status{
  padding: 7px 10px;
  border-radius: 999px;
  font-weight: 950;
  display: inline-block;
}

.status-ok{
  background: var(--good-bg);
  color: var(--good-ink);
}
.status-near{
  background: var(--warn-bg);
  color: var(--warn-ink);
}
.status-bad{
  background: var(--bad-bg);
  color: var(--bad-ink);
}

.divider{
  height: 1px;
  background: var(--border);
  margin: 18px 0;
}

.limits .field{ min-width: 0; }

.mini{
  margin-top: 12px;
}
.mini-item{
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--panel) 75%, transparent);
}
.mini-title{
  font-weight: 900;
  margin-bottom: 4px;
}

.footer{
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.95rem;
  padding: 0 6px;
}

.theme{
  display: flex;
  align-items: center;
  gap: 10px;
}
.theme-label{
  font-weight: 800;
  color: var(--muted);
}
.theme-select{
  width: 180px;
}