:root{
  --bg:#0e1014;
  --card:#171a21;
  --card2:#1a1d25;
  --text:#ffffff;
  --muted:#a6afbd;
  --accent:#4da3ff;
  --border: rgba(255,255,255,.08);
}

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

.app{
  min-height:100%;
  padding: env(safe-area-inset-top) 14px env(safe-area-inset-bottom);
}

/* Topbar */
.topbar{
  position: sticky;
  top:0;
  z-index:10;
  background: linear-gradient(to bottom, rgba(14,16,20,.95), rgba(14,16,20,.75));
  backdrop-filter: blur(10px);
  padding: 12px 2px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}

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

.avatar{
  width:44px;
  height:44px;
  border-radius:50%;
  background: var(--accent);
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  letter-spacing: .5px;
  color:#081018;
}

.balanceBtn{
  border:none;
  background: transparent;
  color: var(--text);
  text-align:left;
  padding: 6px 8px;
  border-radius: 12px;
  cursor: pointer;
}
.balanceBtn:active{
  background: rgba(255,255,255,.06);
}

.label{
  font-size:12px;
  color: var(--muted);
}

.balance{
  font-size:18px;
  font-weight:700;
}

/* Menu */
.menu{ position:relative; }

.burger{
  width:44px;
  height:44px;
  border:none;
  background: transparent;
  border-radius: 12px;
  cursor:pointer;
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:5px;
}
.burger:active{ background: rgba(255,255,255,.06); }
.burger span{
  display:block;
  height:2px;
  width:22px;
  background:#fff;
  border-radius:10px;
  margin-left:auto;
}

.dropdown{
  display:none;
  position:absolute;
  right:0;
  top:52px;
  width:220px;
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,.35);
}

.dropdown-title{
  font-size:12px;
  color: var(--muted);
  margin-bottom:8px;
}

.tariffLine{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:10px;
}
.tariffName{ font-size:16px; font-weight:800; }
.tariffPrice{ font-size:14px; color: var(--muted); }

.nextPay{
  margin-top:6px;
  font-size:12px;
  color: var(--muted);
}

.dropdown-sep{
  height:1px;
  background: var(--border);
  margin:10px 0;
}

.dropdown-btn{
  width:100%;
  border:none;
  background: rgba(255,255,255,.08);
  color:#fff;
  padding:10px 12px;
  border-radius: 12px;
  cursor:pointer;
}
.dropdown-btn:active{
  background: rgba(255,255,255,.12);
}

/* Pages */
.content{ padding-top: 10px; }

.page{ display:none; }
.page-active{ display:block; }

.section-title{
  margin: 14px 0 10px;
  font-size: 18px;
}

.pageHeader{
  display:flex;
  align-items:center;
  gap:10px;
  margin: 10px 0 14px;
}
.backBtn{
  width:44px;
  height:44px;
  border:none;
  border-radius: 12px;
  cursor:pointer;
  background: rgba(255,255,255,.08);
  color:#fff;
  font-size:18px;
}
.backBtn:active{ background: rgba(255,255,255,.12); }
.pageTitle{
  font-size:16px;
  font-weight:800;
}

.cards{
  display:flex;
  flex-direction:column;
  gap:10px;
}

.card{
  border: 1px solid var(--border);
  background: var(--card2);
  color:#fff;
  border-radius: 14px;
  padding: 14px;
  text-align:left;
  cursor:pointer;
}
.card:active{ transform: translateY(1px); }
.cardTitle{ font-size:14px; color: var(--muted); }
.cardValue{ font-size:18px; font-weight:900; margin-top:6px; }

.hint{
  margin-top: 12px;
  font-size: 12px;
  color: var(--muted);
}

/* VPN list */
.list{ display:flex; flex-direction:column; gap:10px; }

.vpn{
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
}

.vpnLeft b{ display:block; font-size:15px; }
.vpnLeft small{ color: var(--muted); }

.badge{
  font-size:12px;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
}
.badge.online{ color:#3ddc84; border-color: rgba(61,220,132,.35); }
.badge.offline{ color:#ff6b6b; border-color: rgba(255,107,107,.35); }

.connectBtn{
  border:none;
  background: rgba(77,163,255,.18);
  color:#fff;
  padding: 10px 12px;
  border-radius: 12px;
  cursor:pointer;
  white-space:nowrap;
}
.connectBtn:active{ background: rgba(77,163,255,.26); }

/* Bottom sheet */
.sheetOverlay{
  position: fixed;
  inset:0;
  background: rgba(0,0,0,.45);
  opacity:0;
  pointer-events:none;
  transition: opacity .18s ease;
  z-index: 40;
}

.sheet{
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: -520px;
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 12px;
  z-index: 50;
  transition: bottom .22s ease;
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
}

.sheet.open{ bottom: 12px; }
.sheetOverlay.open{
  opacity:1;
  pointer-events:auto;
}

.sheetHandle{
  width: 44px;
  height: 4px;
  border-radius: 999px;
  background: rgba(255,255,255,.2);
  margin: 4px auto 10px;
}

.sheetTitle{
  font-size: 16px;
  font-weight: 900;
  margin: 4px 0 10px;
}

.qrWrap{
  display:flex;
  justify-content:center;
  padding: 10px 0;
}
#qr{
  background:#fff;
  padding:10px;
  border-radius: 14px;
}

.copyHint{
  font-size:12px;
  color: var(--muted);
  text-align:center;
  margin: 6px 0 10px;
}

.configBox{
  width:100%;
  text-align:left;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.06);
  color:#fff;
  border-radius: 14px;
  padding: 12px;
  cursor:pointer;
}
.configBox:active{ background: rgba(255,255,255,.10); }

.configText{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 12px;
  line-height: 1.25;
  word-break: break-all;
}
.configSub{
  margin-top: 8px;
  font-size: 12px;
  color: var(--muted);
}

.sheetClose{
  margin-top: 10px;
  width:100%;
  border:none;
  background: rgba(255,255,255,.08);
  color:#fff;
  padding: 10px 12px;
  border-radius: 12px;
  cursor:pointer;
}
.sheetClose:active{ background: rgba(255,255,255,.12); }