:root {
  --bg: #0a0b0f;
  --surface: #12141a;
  --surface-2: #171a21;
  --border: #222530;
  --border-strong: #2c3040;
  --border-hover: #3a3f4e;
  --text-primary: #e8e9ed;
  --text-secondary: #9aa0ae;
  --text-tertiary: #656b7a;
  --accent: #5eead4;
  --accent-strong: #2dd4bf;
  --accent-contrast: #04231d;
  --accent-soft: rgba(94, 234, 212, 0.12);
  --success: #4ade80;
  --success-soft: rgba(74, 222, 128, 0.12);
  --success-border: rgba(74, 222, 128, 0.32);
  --warning: #fbbf24;
  --warning-soft: rgba(251, 191, 36, 0.12);
  --warning-border: rgba(251, 191, 36, 0.32);
  --danger: #f87171;
  --danger-soft: rgba(248, 113, 113, 0.12);
  --danger-border: rgba(248, 113, 113, 0.32);
  --radius-lg: 18px;
  --radius-md: 10px;
  --radius-sm: 8px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  min-height: 100dvh;
  background:
    radial-gradient(circle at 50% -10%, rgba(94, 234, 212, 0.08), transparent 55%),
    var(--bg);
  color: var(--text-primary);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

button, input {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

.page {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 1.25rem;
}

.card {
  width: 100%;
  max-width: 30rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: 0 25px 60px -25px rgba(0, 0, 0, 0.65);
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.header {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid rgba(94, 234, 212, 0.25);
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
}

.header h1 {
  margin: 0;
  font-size: 1.55rem;
  font-weight: 650;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.subtitle {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.5;
}

.lookup-form {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.field-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.input-row {
  display: flex;
  gap: 0.6rem;
}

.username-input {
  -webkit-appearance: none;
  appearance: none;
  flex: 1;
  min-width: 0;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  padding: 0.75rem 0.9rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}

.username-input::placeholder {
  color: var(--text-tertiary);
}

.username-input:hover {
  border-color: var(--border-hover);
}

.username-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.username-input:read-only {
  opacity: 0.7;
  cursor: default;
}

.username-input[aria-invalid="true"] {
  border-color: var(--warning-border);
}

.lookup-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border: none;
  border-radius: var(--radius-md);
  background: var(--accent);
  color: var(--accent-contrast);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.75rem 1.2rem;
  cursor: pointer;
  white-space: nowrap;
  outline: none;
  transition: background 0.15s ease, transform 0.1s ease, opacity 0.15s ease;
}

.lookup-button:hover:not(.is-loading) {
  background: var(--accent-strong);
}

.lookup-button:active:not(.is-loading) {
  transform: translateY(1px);
}

.lookup-button.is-loading {
  opacity: 0.75;
  cursor: progress;
}

.lookup-button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.button-spinner {
  display: inline-block;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  border: 2px solid rgba(4, 35, 29, 0.28);
  border-top-color: var(--accent-contrast);
  animation: spin 0.7s linear infinite;
}

.hint {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-tertiary);
}

.result {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.status-row {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--surface-2);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.status-icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  margin-top: 0.1rem;
  color: var(--text-secondary);
}

.status-icon svg {
  width: 22px;
  height: 22px;
}

.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2.5px solid var(--border-strong);
  border-top-color: var(--accent);
  animation: spin 0.7s linear infinite;
}

.status-text {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.status-title {
  margin: 0;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.status-message {
  margin: 0;
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

.result[data-state="loading"] .status-icon {
  color: var(--accent);
}

.result[data-state="success"] .status-row {
  border-color: var(--success-border);
  background: var(--success-soft);
}

.result[data-state="success"] .status-icon {
  color: var(--success);
}

.result[data-state="invalid"] .status-row,
.result[data-state="rate_limited"] .status-row {
  border-color: var(--warning-border);
  background: var(--warning-soft);
}

.result[data-state="invalid"] .status-icon,
.result[data-state="rate_limited"] .status-icon {
  color: var(--warning);
}

.result[data-state="unavailable"] .status-row {
  border-color: var(--border-strong);
  background: var(--surface-2);
}

.result[data-state="unavailable"] .status-icon {
  color: var(--text-secondary);
}

.result[data-state="server_error"] .status-row {
  border-color: var(--danger-border);
  background: var(--danger-soft);
}

.result[data-state="server_error"] .status-icon {
  color: var(--danger);
}

.display-name-card {
  border: 1px solid var(--success-border);
  background: var(--success-soft);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.display-name-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.display-name-caption {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
}

.profile-link {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  outline: none;
  border-radius: 4px;
}

.profile-link:hover {
  text-decoration: underline;
}

.profile-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.display-name-row {
  display: flex;
  align-items: stretch;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.display-name-text {
  flex: 1;
  min-width: 0;
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.9rem;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--text-primary);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: anywhere;
  outline: none;
}

.display-name-text:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.copy-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--accent-contrast);
  font-weight: 600;
  font-size: 0.88rem;
  padding: 0.7rem 1.1rem;
  cursor: pointer;
  outline: none;
  transition: background 0.15s ease, transform 0.1s ease, color 0.15s ease;
}

.copy-button svg {
  width: 16px;
  height: 16px;
}

.copy-button:hover {
  background: var(--accent-strong);
}

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

.copy-button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.copy-button.copied {
  background: var(--success);
  color: #06240f;
}

.copy-button.copy-failed {
  background: var(--danger);
  color: #2a0a0a;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.footer {
  margin: 0;
  padding-top: 0.25rem;
  border-top: 1px solid var(--border);
}

.footer p {
  margin: 0;
  font-size: 0.78rem;
  color: var(--text-tertiary);
  text-align: center;
  line-height: 1.5;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 480px) {
  .page {
    padding: 1.5rem 1rem;
  }

  .card {
    padding: 1.5rem;
    border-radius: var(--radius-md);
    gap: 1.4rem;
  }

  .header h1 {
    font-size: 1.3rem;
  }

  .input-row {
    flex-direction: column;
  }

  .lookup-button {
    width: 100%;
  }

  .display-name-row {
    flex-direction: column;
  }

  .copy-button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}