:root {
  --bg-canvas: #090d16;
  --surface-main: #101624;
  --surface-subtle: #161f33;
  --border-hairline: #212c45;
  --border-active: #5b6cf9;
  --accent: #3142d6;
  --accent-hover: #2635bd;
  --emerald: #12b886;
  --emerald-tint: rgba(18, 184, 134, 0.14);
  --crimson: #f04461;
  --crimson-tint: rgba(240, 68, 97, 0.14);
  --amber: #f59f00;
  --text-strong: #ffffff;
  --text-body: #c0cee4;
  --text-muted: #8b9db8;
  --font-sans: "Onest", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

::selection {
  background-color: rgba(79, 94, 247, 0.35);
  color: var(--text-strong);
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-canvas);
}

::-webkit-scrollbar-thumb {
  background: var(--border-hairline);
  border-radius: 4px;
}

html,
body {
  min-height: 100vh;
  background-color: var(--bg-canvas);
  color: var(--text-strong);
  font-family: var(--font-sans);
  line-height: 1.55;
  caret-color: var(--border-active);
  -webkit-font-smoothing: antialiased;
}

body {
  background-image: radial-gradient(
    circle at 50% 0%,
    rgba(49, 66, 214, 0.16) 0%,
    transparent 55%
  );
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
}

.shell {
  width: 100%;
  max-width: 430px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* Barra superior de estado */
.status-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background-color: var(--surface-main);
  border: 1px solid var(--border-hairline);
  border-radius: 12px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-body);
}

.status-bar.ok {
  border-color: rgba(18, 184, 134, 0.35);
  background-color: var(--emerald-tint);
  color: #c3fae8;
}

.status-bar.error {
  border-color: rgba(240, 68, 97, 0.4);
  background-color: var(--crimson-tint);
  color: #ffd8e0;
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
  background-color: var(--amber);
}

.status-dot.ok {
  background-color: var(--emerald);
}

.status-dot.error {
  background-color: var(--crimson);
}

/* Superficie principal */
.verify-surface {
  background-color: var(--surface-main);
  border: 1px solid var(--border-hairline);
  border-radius: 16px;
  padding: 28px 24px;
}

.user-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border-hairline);
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  background-color: var(--surface-subtle);
  border: 1px solid var(--border-hairline);
  flex-shrink: 0;
}

.user-meta {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.user-name {
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--text-strong);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.guild-name {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.title {
  margin-top: 22px;
  margin-bottom: 6px;
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text-strong);
  text-wrap: balance;
}

.subtitle {
  font-size: 0.92rem;
  color: var(--text-body);
  max-width: 65ch;
}

/* Formulario y Operación Matemática */
.verify-form {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.math-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.math-prompt {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-body);
}

.math-numbers {
  font-size: 1.35rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--text-strong);
  background-color: var(--surface-subtle);
  border: 1px solid var(--border-hairline);
  padding: 4px 14px;
  border-radius: 8px;
}

.math-input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 10px;
  border: 1px solid var(--border-hairline);
  background-color: var(--bg-canvas);
  color: var(--text-strong);
  font-family: var(--font-sans);
  font-size: 1.1rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  transition: border-color 0.15s ease;
}

.math-input::placeholder {
  color: var(--text-muted);
  font-weight: 400;
}

.math-input:focus-visible {
  outline: 2px solid var(--border-active);
  outline-offset: 1px;
  border-color: var(--border-active);
}

/* Checkbox de Términos y Privacidad */
.legal-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  cursor: pointer;
  user-select: none;
}

.checkbox-input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}

.checkbox-box {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border-radius: 6px;
  border: 1px solid var(--border-hairline);
  background-color: var(--bg-canvas);
  color: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.checkbox-box svg {
  width: 13px;
  height: 13px;
}

.checkbox-input:checked + .checkbox-box {
  background-color: var(--accent);
  border-color: var(--accent);
  color: var(--text-strong);
}

.checkbox-input:focus-visible + .checkbox-box {
  outline: 2px solid var(--border-active);
  outline-offset: 2px;
}

.checkbox-text {
  font-size: 0.86rem;
  color: var(--text-body);
  line-height: 1.45;
}

.inline-link {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  color: var(--text-strong);
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}

.inline-link:hover {
  color: var(--text-body);
}

.inline-link:focus-visible {
  outline: 2px solid var(--border-active);
  border-radius: 3px;
}

.legal-drawer {
  padding: 12px 14px;
  background-color: var(--bg-canvas);
  border: 1px solid var(--border-hairline);
  border-radius: 10px;
  font-size: 0.8rem;
  color: var(--text-body);
}

.legal-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
  color: var(--text-strong);
}

.legal-close {
  background: none;
  border: none;
  font: inherit;
  font-size: 0.78rem;
  color: var(--text-muted);
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.legal-close:hover {
  color: var(--text-strong);
}

/* Mensajes de error o estado */
.feedback-message {
  padding: 11px 14px;
  border-radius: 10px;
  font-size: 0.85rem;
  background-color: var(--crimson-tint);
  border: 1px solid rgba(240, 68, 97, 0.35);
  color: #ffd8e0;
}

/* Botón Principal */
.submit-btn {
  width: 100%;
  padding: 14px 18px;
  border-radius: 10px;
  border: 1px solid transparent;
  background-color: var(--accent);
  color: var(--text-strong);
  font-family: var(--font-sans);
  font-size: 0.96rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.15s ease, opacity 0.15s ease;
}

.submit-btn:hover:not(:disabled) {
  background-color: var(--accent-hover);
}

.submit-btn:focus-visible {
  outline: 2px solid var(--text-strong);
  outline-offset: 2px;
}

.submit-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* Vista de éxito */
.success-view {
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid var(--border-hairline);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.success-view[hidden] {
  display: none;
}

.success-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-strong);
}

.success-check {
  width: 22px;
  height: 22px;
  color: #63e6be;
  flex-shrink: 0;
}

.success-text {
  font-size: 0.9rem;
  color: var(--text-body);
}

.code-step {
  margin-top: 6px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.code-preview {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border-hairline);
  background-color: var(--bg-canvas);
  color: var(--text-body);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
}

.foot {
  display: flex;
  justify-content: space-between;
  padding: 0 4px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
  }
}