:root {
  color-scheme: dark;
  --bg: #090d14;
  --panel: rgba(18, 25, 38, 0.86);
  --panel-2: #111827;
  --line: #283246;
  --text: #eef4ff;
  --muted: #91a0b8;
  --accent: #55d6be;
  --accent-2: #62a8ff;
  --success: #55d6a0;
  --danger: #ff6b7a;
  --warning: #ffc857;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", "Noto Sans JP", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 10%, rgba(85, 214, 190, 0.12), transparent 28rem),
    radial-gradient(circle at 90% 15%, rgba(98, 168, 255, 0.13), transparent 30rem),
    var(--bg);
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 64px 0 32px;
}

.hero {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 28px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.18em;
}

h1 {
  margin: 0;
  font-size: clamp(2.3rem, 7vw, 5rem);
  line-height: 0.95;
  letter-spacing: -0.055em;
}

.hero-copy {
  max-width: 640px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.8;
}

.status-pill {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(17, 24, 39, 0.68);
  color: #cbd7e8;
  font-size: 0.8rem;
  font-weight: 700;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 5px rgba(85, 214, 160, 0.1);
}

.panel {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--panel);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.tabs {
  display: flex;
  gap: 6px;
  padding: 8px;
  border-bottom: 1px solid var(--line);
  background: rgba(5, 10, 18, 0.34);
}

.tab {
  min-height: 44px;
  padding: 0 18px;
  border: 0;
  border-radius: 12px;
  color: var(--muted);
  background: transparent;
  font-weight: 750;
}

.tab:hover {
  color: var(--text);
}

.tab.is-active {
  color: var(--text);
  background: #1b2638;
  box-shadow: inset 0 0 0 1px #31405a;
}

.tab-panel {
  display: none;
  padding: 26px;
}

.tab-panel.is-active {
  display: block;
}

.form-grid {
  display: flex;
  align-items: flex-end;
  gap: 14px;
}

.verify-form {
  display: grid;
  gap: 18px;
}

.verify-fields {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 180px;
  gap: 14px;
}

.field {
  display: grid;
  gap: 8px;
}

.field-grow {
  flex: 1 1 auto;
}

.field > span {
  color: #ccd6e5;
  font-size: 0.8rem;
  font-weight: 800;
}

.field small {
  color: var(--muted);
  line-height: 1.5;
}

input,
select {
  width: 100%;
  height: 50px;
  border: 1px solid #344158;
  border-radius: 12px;
  outline: none;
  background: #0b1220;
  color: var(--text);
  transition: border-color 0.2s, box-shadow 0.2s;
}

input {
  padding: 0 14px;
}

select {
  min-width: 150px;
  padding: 0 42px 0 14px;
}

input:focus,
select:focus {
  border-color: var(--accent-2);
  box-shadow: 0 0 0 4px rgba(98, 168, 255, 0.1);
}

.button {
  min-height: 50px;
  border: 0;
  border-radius: 12px;
  padding: 0 20px;
  font-weight: 850;
  transition: transform 0.15s, filter 0.15s;
}

.button:hover {
  filter: brightness(1.07);
}

.button:active {
  transform: translateY(1px);
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.button.primary {
  color: #061711;
  background: linear-gradient(135deg, var(--accent), #75e8d1);
}

.button.full {
  width: 100%;
}

.verify-options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.radio-card {
  display: flex;
  gap: 10px;
  min-height: 72px;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(9, 14, 24, 0.6);
}

.radio-card input {
  width: 16px;
  height: 16px;
  margin: 3px 0 0;
  accent-color: var(--accent);
}

.radio-card span {
  display: grid;
  gap: 3px;
}

.radio-card strong {
  font-size: 0.88rem;
}

.radio-card small {
  color: var(--muted);
  font-size: 0.75rem;
}

.message {
  min-height: 0;
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.9rem;
}

.message:empty {
  display: none;
}

.message.error {
  padding: 12px 14px;
  border: 1px solid rgba(255, 107, 122, 0.32);
  border-radius: 12px;
  background: rgba(255, 107, 122, 0.08);
  color: #ffb7bf;
}

.message.loading {
  color: #c4d1e4;
}

.results {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.result-row {
  display: grid;
  grid-template-columns: 80px minmax(0, 1fr) 100px;
  align-items: start;
  gap: 14px;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(8, 13, 22, 0.55);
}

.record-type {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 30px;
  border-radius: 8px;
  background: rgba(98, 168, 255, 0.11);
  color: #9bc6ff;
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.05em;
}

.record-value {
  min-width: 0;
  overflow-wrap: anywhere;
  color: #e8eef8;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88rem;
  line-height: 1.65;
}

.ttl {
  color: var(--muted);
  text-align: right;
  font-size: 0.78rem;
}

.verify-result {
  margin-top: 22px;
  padding: 20px;
  border: 1px solid;
  border-radius: 16px;
}

.verify-result.success {
  border-color: rgba(85, 214, 160, 0.4);
  background: rgba(85, 214, 160, 0.07);
}

.verify-result.failure {
  border-color: rgba(255, 107, 122, 0.4);
  background: rgba(255, 107, 122, 0.07);
}

.verify-head {
  display: flex;
  align-items: center;
  gap: 12px;
}

.verify-badge {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  font-size: 1.2rem;
  font-weight: 900;
}

.success .verify-badge {
  background: rgba(85, 214, 160, 0.15);
  color: var(--success);
}

.failure .verify-badge {
  background: rgba(255, 107, 122, 0.15);
  color: var(--danger);
}

.verify-result h3 {
  margin: 0;
  font-size: 1.05rem;
}

.verify-result p {
  margin: 6px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.match-list {
  display: grid;
  gap: 8px;
  margin-top: 16px;
}

.match-item {
  padding: 11px 12px;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.16);
  overflow-wrap: anywhere;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.82rem;
}

.match-item.is-match {
  outline: 1px solid rgba(85, 214, 160, 0.35);
}

.empty-state {
  padding: 24px;
  border: 1px dashed #344158;
  border-radius: 14px;
  text-align: center;
  color: var(--muted);
}

.meta-line {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.78rem;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 16px;
}

.info-card {
  display: flex;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(14, 20, 31, 0.62);
}

.info-icon {
  flex: 0 0 auto;
  color: var(--accent);
  font-family: ui-monospace, monospace;
  font-size: 0.72rem;
  font-weight: 900;
}

.info-card h2 {
  margin: 0;
  font-size: 0.9rem;
}

.info-card p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.6;
}

footer {
  padding: 24px 4px 0;
  color: #596980;
  font-size: 0.76rem;
  text-align: center;
}

@media (max-width: 780px) {
  .app-shell {
    width: min(100% - 20px, 1120px);
    padding-top: 32px;
  }

  .hero {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
  }

  .form-grid {
    align-items: stretch;
    flex-direction: column;
  }

  .verify-fields,
  .verify-options,
  .info-grid {
    grid-template-columns: 1fr;
  }

  select {
    width: 100%;
  }

  .result-row {
    grid-template-columns: 64px minmax(0, 1fr);
  }

  .ttl {
    grid-column: 2;
    text-align: left;
  }

  .tab-panel {
    padding: 18px;
  }
}