:root{
  --bg:#07131d;
  --panel:rgba(16,35,53,0.92);
  --accent:#1ee0b6;
  --accent-2:#0cb49c;
  --muted:#a6b9c8;
  --glass:rgba(255,255,255,0.03);
  --radius:14px;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0;font-family:Inter,Segoe UI,Roboto,Arial,sans-serif;background:linear-gradient(180deg,#07131d 0%, #041018 100%);color:#ecfaff}
body{min-height:100vh}
.topbar{
  max-width:1220px;
  margin:22px auto 0;
  padding:16px 22px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  background:rgba(9,20,30,0.8);
  border:1px solid rgba(255,255,255,0.05);
  border-radius:18px;
  box-shadow:0 12px 30px rgba(0,0,0,0.18);
  backdrop-filter:blur(10px);
}
.brand-box{display:flex;align-items:center;gap:12px}
.brand-logo{width:42px;height:42px;border-radius:12px;object-fit:cover}
.brand-box h1{margin:0;font-size:1.15rem;letter-spacing:-0.02em}
.brand-box small{color:var(--muted);font-size:0.72rem}
.topnav{display:flex;align-items:center;flex-wrap:wrap;justify-content:flex-end;gap:10px}
.nav-link,.logout-btn{display:inline-flex;align-items:center;justify-content:center;padding:8px 12px;border-radius:10px;color:#d9eef7;text-decoration:none;font-size:0.9rem;border:1px solid transparent;transition:0.2s ease}
.nav-link:hover,.nav-link.active{background:rgba(30,224,182,0.1);border-color:rgba(30,224,182,0.2);color:#fff}
.logout-btn{background:transparent;border-color:rgba(255,255,255,0.12);color:var(--muted);cursor:pointer}
.hidden{display:none!important}
.page-shell{max-width:1100px;margin:24px auto 48px;padding:26px}
.page-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}
.page-header h1{margin:0;font-size:1.6rem;letter-spacing:-0.02em}
.container{display:grid;grid-template-columns:1fr 360px;gap:20px}
.card{background:var(--panel);border-radius:var(--radius);padding:20px;border:1px solid rgba(255,255,255,0.04);box-shadow:0 10px 30px rgba(2,8,12,0.6)}
.form-hero{display:flex;gap:14px;align-items:center;margin-bottom:12px}
.brand-mark{width:56px;height:56px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#032b2a;font-weight:800}
.form-title{margin:0}
.form-sub{color:var(--muted);font-size:0.95rem;margin-top:6px}
.field-row{margin-bottom:12px}
.field-row input,.field-row textarea{width:100%;padding:12px;border-radius:10px;border:1px solid rgba(255,255,255,0.06);background:transparent;color:inherit;outline:none}
.field-row input::placeholder,.field-row textarea::placeholder{color:rgba(230,244,240,0.55)}
.primary-btn{background:linear-gradient(135deg,var(--accent),var(--accent-2));border:none;padding:12px 18px;border-radius:12px;color:#032b2a;font-weight:800;cursor:pointer}
.secondary-btn{background:transparent;border:1px solid rgba(255,255,255,0.06);padding:10px 14px;border-radius:10px;color:var(--muted);cursor:pointer}
.side-info{display:flex;flex-direction:column;gap:12px}
.info-box{background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));padding:16px;border-radius:12px;border:1px solid rgba(255,255,255,0.03)}
.info-box h4{margin:0 0 8px 0}
.kv{display:flex;justify-content:space-between;color:var(--muted);font-size:0.95rem}
.track-note{font-size:0.92rem;color:var(--muted)}
.footer-cta{display:flex;gap:10px;align-items:center;justify-content:flex-end;margin-top:8px}
.history-panel{margin-top:20px}
.history-list{display:grid;gap:10px}
.info-box .kv{display:flex;justify-content:space-between;gap:10px;align-items:center}
.small{font-size:0.88rem;color:var(--muted)}

.app-modal-backdrop {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(2, 8, 18, 0.72);
  backdrop-filter: blur(6px) saturate(1.05);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.18s ease, visibility 0.18s ease;
  z-index: 9999;
  padding: 20px;
}
.app-modal-backdrop.is-open { opacity: 1; visibility: visible; }
.app-modal {
  width: min(560px, calc(100vw - 40px));
  background: linear-gradient(180deg, rgba(12,20,26,0.98), rgba(6,12,18,0.98));
  border: 1px solid rgba(148, 163, 184, 0.12);
  border-radius: 14px;
  box-shadow: 0 30px 80px rgba(2,8,20,0.6), 0 6px 18px rgba(2,8,20,0.35);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 80px);
}
.app-modal-header { display:flex; align-items:center; justify-content:space-between; padding:18px 20px 12px; border-bottom:1px solid rgba(148,163,184,0.12); }
.app-modal-header h3 { margin:0; font-size:1.15rem; color:#edf6ff; }
.app-modal-close { border:none; background:transparent; color:#cbd5e1; font-size:1.6rem; line-height:1; cursor:pointer; }
.app-modal-body { padding:18px 20px 8px; color:#dfeaf3; overflow:auto; flex:1 1 auto; }
.app-modal-wallet-address {
  background: rgba(10, 18, 26, 0.9);
  border: 1px solid rgba(30,224,182,0.18);
  border-radius: 10px;
  padding: 14px 16px;
  color: #ecfaff;
  line-height: 1.6;
  white-space: normal;
  overflow: hidden;
  word-break: break-word;
  font-size: 0.92rem;
}
.app-modal-wallet-address.exchange-rate-modal-message {
  padding: 0 !important;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  white-space: normal !important;
  overflow: hidden !important;
  word-break: normal !important;
}
.app-modal-wallet-address.exchange-rate-modal-message .exchange-rate-modal-shell,
.app-modal-wallet-address.exchange-rate-modal-message .exchange-rate-marquee-wrap,
.app-modal-wallet-address.exchange-rate-modal-message .exchange-rate-marquee-track,
.app-modal-wallet-address.exchange-rate-modal-message .exchange-rate-marquee-chip {
  white-space: nowrap !important;
  overflow: hidden !important;
  word-break: normal !important;
  flex-wrap: nowrap !important;
}
.app-modal-wallet-address.exchange-rate-modal-message .exchange-rate-modal-shell {
  display: block !important;
  width: min(100%, 520px) !important;
  max-width: 100% !important;
}
.app-modal-wallet-address.exchange-rate-modal-message .exchange-rate-marquee-wrap {
  display: block !important;
  width: 100% !important;
  max-width: 100% !important;
  overflow: hidden !important;
}
.app-modal-wallet-address.exchange-rate-modal-message .exchange-rate-marquee-track {
  display: inline-flex !important;
  flex-direction: row !important;
  width: max-content !important;
  min-width: max-content !important;
  animation: exchangeRateMarquee 18s linear infinite !important;
}
.app-modal-wallet-address.exchange-rate-modal-message .exchange-rate-marquee-chip {
  display: inline-flex !important;
  flex: 0 0 auto !important;
  flex-shrink: 0 !important;
  white-space: nowrap !important;
}
.app-modal-actions { display:flex; justify-content:flex-end; gap:10px; padding:18px 20px 20px; }
.app-modal-actions.single { justify-content:center; }
.app-modal-btn {
  border:none; border-radius:10px; padding:11px 18px; font-weight:700; cursor:pointer;
  transition: transform 0.15s ease, filter 0.15s ease;
}
.app-modal-btn:hover { transform: translateY(-1px); filter: brightness(1.03); }
.app-modal-btn-primary { background: linear-gradient(90deg, #25d0a3, #57c7ff); color:#04151d; }
.app-modal-btn-secondary { background: rgba(148,163,184,0.08); color:#edf6ff; border:1px solid rgba(148,163,184,0.16); }
body.modal-open, html.modal-open { overflow: hidden !important; height: 100% !important; }
.app-modal-backdrop.is-open .app-modal { animation: modalEntrance 220ms cubic-bezier(.2,.9,.3,1) both; }
@keyframes modalEntrance { from { transform: translateY(8px) scale(0.985); opacity:0; } to { transform: translateY(0) scale(1); opacity:1; } }

.app-modal-message.app-modal-error .app-modal-header {
  background: linear-gradient(180deg, rgba(127, 29, 29, 0.25), rgba(127, 29, 29, 0.12));
  border-bottom: 1px solid rgba(248, 113, 113, 0.35);
}
.app-modal-message.app-modal-error .app-modal-header h3,
.app-modal-message.app-modal-error .app-modal-body {
  color: #ffe7e7;
}
.app-modal-message.app-modal-error .app-modal-wallet-address {
  background: rgba(69, 10, 10, 0.6);
  border-color: rgba(248, 113, 113, 0.35);
  color: #fff1f2;
}
.app-modal-message.app-modal-error .app-modal-btn-primary {
  background: linear-gradient(90deg, #ef4444, #f97316);
  color: #fff;
}

@media(max-width:900px){
  .topbar{margin:16px 12px 0;padding:12px 14px;flex-direction:column;align-items:flex-start}
  .topnav{justify-content:flex-start}
  .container{grid-template-columns:1fr;}
  .page-shell{padding:16px;margin:22px auto}
}