:root {
  --bg: #07090f;
  --panel: rgba(16, 20, 33, 0.88);
  --panel-border: rgba(255,255,255,0.08);
  --text: #f7f7fb;
  --muted: #a1a8bf;
  --yellow: #f6c945;
  --violet: #8b5cf6;
  --cyan: #2dd4bf;
  --red: #ef4444;
  --track: rgba(255,255,255,0.08);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Cairo', system-ui, sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top, rgba(139,92,246,0.18), transparent 24%), radial-gradient(circle at bottom left, rgba(246,201,69,0.12), transparent 20%), var(--bg);
  min-height: 100vh;
}
.hidden { display:none !important; }
.bg-glow {
  position: fixed; inset: 0; pointer-events:none;
  background: radial-gradient(circle at 80% 20%, rgba(45,212,191,0.08), transparent 20%);
}
.topbar, .wrap { width: min(1180px, calc(100% - 32px)); margin-inline: auto; }
.topbar {
  display:flex; justify-content:space-between; align-items:center; padding: 18px 0 10px;
}
.brand { display:flex; align-items:center; gap:14px; }
.brand-mark {
  width:56px; height:56px; border-radius:18px; display:grid; place-items:center;
  background: linear-gradient(135deg, rgba(246,201,69,0.25), rgba(139,92,246,0.25));
  font-size: 1.6rem; box-shadow: 0 10px 30px rgba(0,0,0,0.25);
}
.brand h1 { margin:0; font-size: clamp(1.5rem, 2vw, 2rem); }
.brand p { margin:0; color: var(--muted); font-size: .95rem; }
.ghost-btn, .tiny-btn, .secondary-btn, .primary-btn, select {
  font-family: inherit;
}
.ghost-btn, .tiny-btn {
  border:1px solid var(--panel-border); background: rgba(255,255,255,.03); color: var(--text);
  border-radius: 14px; cursor:pointer;
}
.ghost-btn { padding: 10px 16px; font-weight:700; }
.tiny-btn { padding: 6px 10px; }
.wrap { padding: 12px 0 40px; }
.card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 26px;
  box-shadow: 0 18px 60px rgba(0,0,0,.25);
  backdrop-filter: blur(8px);
}
.hero {
  padding: 24px;
  display:flex; justify-content:space-between; gap:18px; align-items:center;
  margin-bottom: 20px;
}
.badge, .mini-badge {
  display:inline-flex; align-items:center; gap:8px; padding:8px 12px; border-radius:999px;
  font-size:.85rem; font-weight:700;
}
.badge { background: rgba(246,201,69,.12); color: var(--yellow); border:1px solid rgba(246,201,69,.18); }
.mini-badge { background: rgba(139,92,246,.12); color: #d6c6ff; border:1px solid rgba(139,92,246,.18); }
.hero h2 { margin:12px 0 8px; font-size: clamp(1.4rem, 2.5vw, 2.3rem); }
.hero p { margin:0; color: var(--muted); max-width: 720px; line-height: 1.8; }
.hero-actions { display:flex; flex-wrap:wrap; gap:12px; }
.primary-btn, .secondary-btn {
  border:none; border-radius: 16px; padding: 15px 22px; font-size: 1rem; font-weight: 800; cursor:pointer;
}
.primary-btn { background: linear-gradient(135deg, var(--yellow), #ffde7c); color:#151515; }
.secondary-btn { background: rgba(255,255,255,.05); color: var(--text); border:1px solid var(--panel-border); }
.layout-grid {
  display:grid; grid-template-columns: 1.25fr .75fr; gap: 20px;
}
.main-panel { padding: 24px; }
.panel-head { display:flex; justify-content:space-between; gap:16px; align-items:end; margin-bottom: 18px; }
.panel-head h3, .rank-panel h3, .leaderboard-panel h3 { margin:0; font-size: 1.2rem; }
.muted, #phaseText { color: var(--muted); }
.server-box { display:flex; flex-direction:column; gap:8px; min-width: 210px; }
select {
  background: rgba(255,255,255,.05); color: var(--text); border:1px solid var(--panel-border);
  padding: 12px 14px; border-radius: 14px;
}
.meters-grid {
  display:grid; grid-template-columns: repeat(2, 1fr) 220px; gap: 18px; align-items:center;
}
.meter-card {
  position:relative; min-height:260px; display:grid; place-items:center;
  border-radius:22px; background: rgba(255,255,255,.03); border:1px solid var(--panel-border);
}
.ring { width: 220px; height:220px; transform: rotate(-90deg); }
.track, .progress {
  fill:none; stroke-width:16;
}
.track { stroke: var(--track); }
.progress {
  stroke-linecap:round; stroke-dasharray: 553; stroke-dashoffset: 553;
  transition: stroke-dashoffset .2s linear;
}
.progress-download { stroke: url(#gradDown); stroke: var(--yellow); }
.progress-upload { stroke: url(#gradUp); stroke: var(--violet); }
.meter-content {
  position:absolute; text-align:center; display:flex; flex-direction:column; gap:8px; transform: translateY(-4px);
}
.meter-content strong { font-size: 2.2rem; }
.meter-label, .metric-box span { color: var(--muted); font-weight:700; }
.ping-box {
  min-height:260px; display:grid; place-items:center; align-content:center; gap:10px;
  border-radius:22px; background: rgba(255,255,255,.03); border:1px solid var(--panel-border);
}
.ping-box strong { font-size: 3rem; }
#errorBox {
  display: none;
  margin-top:16px;
  background: rgba(239,68,68,.1);
  color: #fecaca;
  border:1px solid rgba(239,68,68,.25);
  padding:14px 16px;
  border-radius:16px;
}

.ad-box {
  margin-top:18px; min-height:86px; border:1px dashed rgba(246,201,69,.45); border-radius:20px;
  display:grid; place-items:center; color: var(--yellow); text-align:center; padding:18px;
  background: rgba(246,201,69,.04);
}
.sidebar-col { display:flex; flex-direction:column; gap:20px; }
.rank-panel, .leaderboard-panel { padding: 22px; }
.rank-top, .list-head { display:flex; align-items:center; justify-content:space-between; gap:12px; }
.rank-icon {
  width:58px; height:58px; display:grid; place-items:center; border-radius:18px;
  background: linear-gradient(135deg, rgba(246,201,69,.25), rgba(139,92,246,.25)); font-size:1.8rem;
}
#rankName { margin:16px 0 10px; font-size: 1.9rem; }
#rankDesc { margin:0 0 16px; color: var(--muted); line-height:1.9; }
.score-list { display:grid; gap:12px; }
.score-list > div {
  padding:14px 16px; border-radius:16px; background: rgba(255,255,255,.04); border:1px solid var(--panel-border);
  display:flex; align-items:center; justify-content:space-between;
}
.history-list { display:grid; gap:10px; margin-top:14px; }
.history-item {
  padding: 12px 14px; border-radius:16px; background: rgba(255,255,255,.04); border:1px solid var(--panel-border);
}
.history-item strong { display:block; margin-bottom:8px; color:#fff; }
.history-item small { display:flex; justify-content:space-between; gap:12px; color: var(--muted); }
@media (max-width: 1020px) {
  .layout-grid { grid-template-columns: 1fr; }
  .meters-grid { grid-template-columns: 1fr; }
  .hero { flex-direction:column; align-items:flex-start; }
}
@media (max-width: 640px) {
  .topbar, .wrap { width: min(100% - 18px, 1180px); }
  .hero, .main-panel, .rank-panel, .leaderboard-panel { padding: 18px; }
  .brand h1 { font-size: 1.4rem; }
}