:root {
  --bg:       #070b14;
  --surface:  #0f1520;
  --surface2: #161d2e;
  --border:   #1e2a40;
  --text:     #dce3f5;
  --muted:    #6070a0;
  --blue:     #4f8ef7;
  --rail:     #f59e0b;
  --green:    #34d399;
  --red:      #f87171;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 15px;
  min-height: 100vh;
}

/* ── Topbar ── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.topbar-left { display: flex; align-items: center; gap: 10px; }
.logo { font-size: 1.3rem; font-weight: 800; letter-spacing: -0.5px; color: var(--rail); }
.logo-sub { font-size: 0.78rem; color: var(--muted); letter-spacing: 1px; text-transform: uppercase; }
.topbar-right { display: flex; align-items: center; gap: 10px; }

.chain-badge {
  font-size: 0.75rem;
  color: var(--green);
  background: rgba(52,211,153,0.1);
  border: 1px solid rgba(52,211,153,0.25);
  border-radius: 20px;
  padding: 4px 12px;
  font-weight: 600;
}
.chain-badge.wrong { color: var(--red); background: rgba(248,113,113,0.1); border-color: rgba(248,113,113,0.25); }

.btn-connect {
  background: var(--blue);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 8px 18px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s;
}
.btn-connect:hover { opacity: 0.85; }
.btn-connect.connected {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 0.8rem;
}

/* ── Main layout ── */
main {
  max-width: 480px;
  margin: 32px auto;
  padding: 0 16px 80px;
}

/* ── Stats bar ── */
.stats-bar {
  display: flex;
  gap: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 20px;
  overflow: hidden;
}
.stat {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 8px;
  border-right: 1px solid var(--border);
}
.stat:last-child { border-right: none; }
.stat-label { font-size: 0.68rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 4px; }
.stat-val { font-size: 0.88rem; font-weight: 600; color: var(--text); }

/* ── Swap card ── */
.swap-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 20px;
}

.swap-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.swap-title { font-size: 1rem; font-weight: 700; }
.settings-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 8px;
  padding: 4px 10px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: color 0.15s;
}
.settings-btn:hover { color: var(--text); }

/* ── Slippage panel ── */
.slippage-panel {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.slip-label { font-size: 0.82rem; color: var(--muted); white-space: nowrap; }
.slip-btns { display: flex; gap: 6px; }
.slip-opt {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 8px;
  padding: 4px 10px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.15s;
}
.slip-opt.active { background: var(--blue); border-color: var(--blue); color: #fff; }
.slip-opt:hover:not(.active) { color: var(--text); }

/* ── Token boxes ── */
.token-box {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 16px;
  transition: border-color 0.15s;
}
.token-box:focus-within { border-color: var(--blue); }

.token-box-top {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
}
.box-label { font-size: 0.75rem; color: var(--muted); }
.box-balance { font-size: 0.75rem; color: var(--muted); cursor: pointer; }
.box-balance:hover { color: var(--blue); }

.token-box-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.amount-input {
  flex: 1;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.6rem;
  font-weight: 600;
  outline: none;
  width: 0;
}
.amount-input::placeholder { color: var(--border); }
.amount-out {
  flex: 1;
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--text);
}

.token-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 12px;
  flex-shrink: 0;
}
.rail-pill { border-color: rgba(245,158,11,0.3); background: rgba(245,158,11,0.08); }
.token-icon { font-size: 1rem; font-weight: 700; }
.eth-icon { color: #627eea; }
.rail-icon { color: var(--rail); font-size: 0.9rem; }
.token-name { font-size: 0.9rem; font-weight: 700; }

/* ── Flip button ── */
.flip-row {
  display: flex;
  justify-content: center;
  margin: 8px 0;
}
.flip-btn {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 10px;
  width: 36px;
  height: 36px;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.flip-btn:hover { color: var(--text); border-color: var(--blue); transform: rotate(180deg); }

/* ── Price row ── */
.price-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 12px 0;
  padding: 0 4px;
  font-size: 0.82rem;
  color: var(--muted);
  min-height: 20px;
}
.price-impact { font-size: 0.8rem; }
.price-impact.warn { color: var(--rail); }
.price-impact.danger { color: var(--red); }

/* ── Swap button ── */
.swap-btn {
  width: 100%;
  padding: 16px;
  background: var(--blue);
  color: #fff;
  border: none;
  border-radius: 14px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.15s;
  margin-top: 4px;
}
.swap-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.swap-btn:not(:disabled):hover { opacity: 0.88; }
.swap-btn.approve { background: var(--rail); }
.swap-btn.loading { opacity: 0.7; cursor: wait; }

/* ── Tx status ── */
.tx-status {
  margin-top: 12px;
  font-size: 0.82rem;
  text-align: center;
  color: var(--muted);
  min-height: 20px;
  word-break: break-all;
}
.tx-status.success { color: var(--green); }
.tx-status.error { color: var(--red); }

/* ── Unwrap card ── */
.unwrap-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 18px;
  margin-top: 14px;
}
.unwrap-label { font-size: 0.85rem; color: var(--muted); }
.btn-unwrap {
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 6px 14px;
  font-size: 0.82rem;
  cursor: pointer;
  transition: border-color 0.15s;
}
.btn-unwrap:hover { border-color: var(--blue); color: var(--blue); }

/* ── Network hint ── */
.network-hint {
  text-align: center;
  margin-top: 20px;
  font-size: 0.82rem;
  color: var(--muted);
}
.btn-add-network {
  background: none;
  border: none;
  color: var(--blue);
  font-size: 0.82rem;
  cursor: pointer;
  text-decoration: underline;
  padding: 0;
}
.btn-add-network:hover { opacity: 0.8; }