@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700&family=Noto+Sans+KR:wght@400;500;700&display=swap');

:root {
  color-scheme: light;
  --bg: #f9fbff;
  --bg-elev: #ffffff;
  --text: #101421;
  --muted: #5c6372;
  --primary: #1e78ff;
  --primary-strong: #0f5fe6;
  --border: #e3e7f0;
  --glow: rgba(30, 120, 255, 0.12);
  --shadow: 0 20px 60px rgba(9, 30, 66, 0.08);
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b0f16;
  --bg-elev: #121826;
  --text: #e9edf5;
  --muted: #9aa4b2;
  --primary: #6aa5ff;
  --primary-strong: #86b8ff;
  --border: #232a38;
  --glow: rgba(106, 165, 255, 0.16);
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Plus Jakarta Sans", "Noto Sans KR", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  padding: 0 5vw 60px;
  overflow-x: hidden;
}

.bg-orb {
  position: fixed;
  inset: -10% 0 auto 0;
  height: 420px;
  background: radial-gradient(circle at 20% 20%, var(--glow), transparent 60%),
    radial-gradient(circle at 80% 0%, rgba(0, 0, 0, 0.08), transparent 55%);
  pointer-events: none;
  z-index: -1;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 0 10px;
}

.brand {
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.4px;
}

.nav {
  display: flex;
  gap: 16px;
  font-size: 14px;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 12px;
  color: var(--text);
  cursor: pointer;
  box-shadow: var(--shadow);
}

.toggle-indicator {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--primary);
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
  gap: 40px;
  padding: 60px 0 40px;
}

.eyebrow {
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 10px;
}

.hero h1 {
  font-size: clamp(32px, 4vw, 54px);
  line-height: 1.05;
  margin: 0 0 16px;
  letter-spacing: -1px;
}

.subhead {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.6;
  margin-bottom: 26px;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.btn {
  border: none;
  border-radius: 999px;
  padding: 12px 20px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn.primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 10px 20px rgba(30, 120, 255, 0.25);
}

.btn.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn.full {
  width: 100%;
}

.btn:hover {
  transform: translateY(-2px);
}

.trust-row {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 14px;
}

.trust-row strong {
  display: block;
  color: var(--text);
  font-size: 16px;
}

.hero-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 24px;
  box-shadow: var(--shadow);
}

.card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.pill {
  background: var(--glow);
  color: var(--primary);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.pill.ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
}

.field {
  display: block;
  margin-bottom: 16px;
  font-size: 14px;
  color: var(--muted);
}

.field input,
.field select {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  padding: 12px 14px;
  font-size: 15px;
}

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

.unit {
  font-weight: 600;
}

.card-foot {
  margin-top: 14px;
  font-size: 12px;
  color: var(--muted);
}

.strip {
  padding: 40px 0 20px;
}

.strip h2,
.signup h2,
.wallet h2 {
  margin-bottom: 16px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 18px;
}

.step {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 20px;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  margin-bottom: 10px;
}

.wallet {
  padding: 20px 0 10px;
}

.wallet-head {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
}

.wallet-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.wallet-panel {
  margin-top: 20px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 20px;
  display: grid;
  gap: 18px;
  box-shadow: var(--shadow);
}

.panel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

.panel-block h3 {
  margin-top: 0;
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}

.status-grid span {
  color: var(--muted);
  font-size: 12px;
}

.wallet-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  margin-top: 20px;
}

.wallet-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 22px;
  box-shadow: var(--shadow);
}

.wallet-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.wallet-output {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.wallet-output span {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}

.wallet-output code {
  display: block;
  background: rgba(30, 120, 255, 0.08);
  padding: 10px 12px;
  border-radius: 12px;
  font-size: 12px;
  word-break: break-all;
}

.wallet-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.wallet-note {
  display: block;
  margin-top: 12px;
  color: var(--muted);
}

.wallet-tabs {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.tab {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  border-radius: 999px;
  padding: 8px 16px;
  cursor: pointer;
}

.tab.active {
  background: var(--primary);
  color: #fff;
  border-color: transparent;
}

.tab-panel {
  margin-top: 16px;
}

.tab-panel.hidden {
  display: none;
}

.assets-list {
  display: grid;
  gap: 12px;
}

.asset-row {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.asset-row span {
  color: var(--muted);
  font-size: 12px;
}


.fee-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px dashed var(--border);
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 13px;
  color: var(--muted);
}

.fee-box strong {
  color: var(--text);
}

.gas-panel {
  display: grid;
  gap: 10px;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
}

.gas-panel.hidden {
  display: none;
}

.send-grid {
  display: grid;
  gap: 12px;
  max-width: 420px;
}

.warn {
  color: #c4452c;
}

.activity {
  display: grid;
  gap: 10px;
}

.activity-item {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px 14px;
  font-size: 13px;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  padding: 30px 0;
}

.feature {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 22px;
}

.signup {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  align-items: center;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 28px;
  margin-top: 20px;
  box-shadow: var(--shadow);
}

.signup-form {
  display: grid;
  gap: 12px;
}

.signup-form input {
  border-radius: 999px;
  border: 1px solid var(--border);
  padding: 12px 16px;
  font-size: 16px;
  background: transparent;
  color: var(--text);
}

.footer {
  margin-top: 60px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13px;
  color: var(--muted);
}

.foot-links a {
  color: inherit;
  text-decoration: none;
  margin-left: 12px;
}


.modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 10;
}

.modal.show {
  opacity: 1;
  pointer-events: auto;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(6, 10, 18, 0.5);
}

.modal-card {
  position: relative;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 20px;
  width: min(460px, 92vw);
  box-shadow: var(--shadow);
  z-index: 1;
}

.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.modal-close {
  border: none;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.modal-body {
  margin-top: 16px;
  display: grid;
  gap: 10px;
}

.confirm-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 14px;
}

.confirm-row span {
  color: var(--muted);
}

.modal-note {
  font-size: 12px;
  color: var(--muted);
  margin-top: 10px;
}

.modal-actions {
  margin-top: 18px;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  padding: 12px 16px;
  border-radius: 12px;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 720px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav {
    flex-wrap: wrap;
  }

  .hero-card {
    order: -1;
  }
}