:root {
  --bg: #0f1118;
  --bg2: #1a1d2e;
  --bg3: #252940;
  --border: #2d3154;
  --text: #e8eaf6;
  --text2: #9599b3;
  --accent: #6c63ff;
  --accent2: #8b83ff;
  --green: #00e676;
  --red: #ff5252;
  --gold: #ffd740;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Segoe UI', -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}
.app { max-width: 480px; margin: 0 auto; padding: 20px; }

/* Header */
.header {
  text-align: center;
  padding: 30px 0 20px;
}
.header h1 { font-size: 28px; font-weight: 700; }
.header h1 span { color: var(--accent2); }
.header .chain-info { font-size: 12px; color: var(--text2); margin-top: 4px; }

/* Balance Card */
.balance-card {
  background: linear-gradient(135deg, #6c63ff 0%, #3f37c9 100%);
  border-radius: 20px;
  padding: 30px;
  margin: 20px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.balance-card::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
}
.balance-card .label { font-size: 14px; opacity: 0.8; }
.balance-card .amount { font-size: 36px; font-weight: 700; margin: 8px 0; }
.balance-card .address {
  font-size: 12px;
  opacity: 0.7;
  word-break: break-all;
  cursor: pointer;
}
.balance-card .address:hover { opacity: 1; }

/* Action Buttons */
.actions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 20px 0;
}
.action-btn {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px 8px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--text);
}
.action-btn:hover { border-color: var(--accent); background: var(--bg3); }
.action-btn .icon { font-size: 24px; margin-bottom: 6px; }
.action-btn .label { font-size: 12px; color: var(--text2); }

/* Cards */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 16px;
  margin-bottom: 16px;
  overflow: hidden;
}
.card-header {
  padding: 16px;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
}

/* TX List */
.tx-item {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.tx-item:last-child { border-bottom: none; }
.tx-dir { font-size: 20px; margin-right: 10px; }
.tx-info { flex: 1; }
.tx-info .addr { font-size: 13px; color: var(--text2); }
.tx-info .time { font-size: 11px; color: var(--text2); }
.tx-amount { font-weight: 600; text-align: right; }
.tx-amount.sent { color: var(--red); }
.tx-amount.received { color: var(--green); }

/* Modal */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.7);
  z-index: 200;
  align-items: center;
  justify-content: center;
}
.modal-overlay.active { display: flex; }
.modal {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 24px;
  width: 90%;
  max-width: 420px;
}
.modal h2 { margin-bottom: 16px; font-size: 20px; }
.modal .close {
  float: right;
  background: none;
  border: none;
  color: var(--text2);
  font-size: 24px;
  cursor: pointer;
}

/* Form */
input, textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  font-size: 14px;
  margin-bottom: 12px;
  outline: none;
}
input:focus { border-color: var(--accent); }
.btn {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent2); }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); margin-top: 8px; }
.btn-danger { background: var(--red); color: #fff; }

/* QR */
.qr-container { text-align: center; padding: 20px; }
.qr-container img { border-radius: 12px; }

/* Welcome */
.welcome { text-align: center; padding: 40px 0; }
.welcome h2 { margin-bottom: 16px; }
.welcome p { color: var(--text2); margin-bottom: 24px; }

/* Status */
.status { font-size: 12px; text-align: center; padding: 8px; color: var(--text2); }
.status .dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--green); margin-right: 4px; }

/* Responsive */
.empty { text-align: center; padding: 30px; color: var(--text2); }
.msg { padding: 12px; border-radius: 8px; margin-bottom: 12px; font-size: 14px; }
.msg.success { background: rgba(0,230,118,0.1); color: var(--green); }
.msg.error { background: rgba(255,82,82,0.1); color: var(--red); }
.mono { font-family: 'Courier New', monospace; }
.mt { margin-top: 12px; }
.mb { margin-bottom: 12px; }

.auth-box {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  margin: 20px auto;
  max-width: 380px;
}
.mnemonic-box {
  background: var(--bg3);
  border: 1px solid #f59e0b;
  border-radius: 12px;
  padding: 16px;
  margin-top: 12px;
}
.mnemonic-box p { font-size: 12px; color: #f59e0b; margin-bottom: 8px; }
.mnemonic { font-family: monospace; font-size: 14px; word-break: break-word; line-height: 1.8; user-select: all; }
.btn-max { padding: 10px 14px; font-size: 12px; background: var(--accent); color: #fff; border: none; border-radius: 10px; cursor: pointer; }