:root {
  --bg: #0c0e14;
  --surface: #141820;
  --surface-2: #1c2230;
  --border: rgba(255, 255, 255, 0.08);
  --text: #e8eaef;
  --text-muted: #8b93a7;
  --accent: #6ee7b7;
  --accent-dim: rgba(110, 231, 183, 0.15);
  --accent-2: #818cf8;
  --danger: #f87171;
  --radius: 16px;
  --font: "DM Sans", system-ui, sans-serif;
  --font-display: "Instrument Serif", Georgia, serif;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.bg-pattern {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 10%, rgba(110, 231, 183, 0.07), transparent),
    radial-gradient(ellipse 60% 50% at 80% 80%, rgba(129, 140, 248, 0.06), transparent);
  pointer-events: none;
  z-index: 0;
}

#app {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

.screen {
  display: none;
  animation: fadeIn 0.4s ease;
}

.screen.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 1.25rem;
}

.badge-success {
  color: var(--accent);
}

.hero, .results-hero {
  text-align: center;
  margin-bottom: 2.5rem;
}

h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 2.75rem);
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 em {
  font-style: italic;
  color: var(--accent);
}

.lead {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 520px;
  margin: 0 auto;
}

.test-grid {
  display: grid;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.test-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  transition: border-color 0.2s, transform 0.2s;
}

.test-card:hover {
  border-color: rgba(110, 231, 183, 0.25);
  transform: translateX(4px);
}

.test-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}

.test-icon.seq { background: rgba(110, 231, 183, 0.12); }
.test-icon.logic { background: rgba(129, 140, 248, 0.12); }
.test-icon.visual { background: rgba(251, 191, 36, 0.12); }
.test-icon.verbal { background: rgba(244, 114, 182, 0.12); }
.test-icon.math { background: rgba(56, 189, 248, 0.12); }

.test-info h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.15rem;
}

.test-info p {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.actions {
  text-align: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.start-form {
  display: grid;
  gap: 1.25rem;
}

.field {
  display: grid;
  gap: 0.45rem;
  text-align: left;
}

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

.field input {
  font-family: var(--font);
  font-size: 1rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.85rem 1rem;
  outline: none;
}

.field input:focus {
  border-color: var(--accent);
}

.timer {
  font-variant-numeric: tabular-nums;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.45rem 0.65rem;
  min-width: 64px;
  text-align: center;
}

.score-band {
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.score-meta {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.score-meta strong {
  color: var(--text);
}

.ranking-list {
  display: grid;
  gap: 0.6rem;
  margin-bottom: 2rem;
}

.ranking-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 0.75rem;
  align-items: start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.85rem 1rem;
}

.ranking-pos {
  font-weight: 700;
  color: var(--accent);
}

.ranking-item small {
  display: block;
  color: var(--text-muted);
  font-size: 0.78rem;
}

.ranking-iq {
  font-weight: 700;
  color: var(--accent);
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 1.5rem;
  transform: translateX(-50%);
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.75rem 1rem;
  border-radius: 12px;
  z-index: 10;
  max-width: calc(100% - 2rem);
}

.skeleton {
  height: 72px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
}

.breakdown-bar {
  height: 4px;
  background: var(--surface-2);
  border-radius: 999px;
  margin-top: 0.45rem;
  overflow: hidden;
}

.breakdown-bar span {
  display: block;
  height: 100%;
  background: var(--accent);
}

.hint {
  margin-top: 0.75rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.btn {
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  border-radius: 12px;
  padding: 0.85rem 1.75rem;
  cursor: pointer;
  transition: transform 0.15s, opacity 0.15s, background 0.15s;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  color: #0c0e14;
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  filter: brightness(1.08);
}

.btn-secondary {
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover:not(:disabled) {
  border-color: rgba(255, 255, 255, 0.15);
}

/* Quiz */
.quiz-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.btn-back {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  width: 40px;
  height: 40px;
  border-radius: 10px;
  font-size: 1.1rem;
  cursor: pointer;
  flex-shrink: 0;
}

.btn-back:hover {
  background: var(--surface-2);
}

.quiz-meta {
  flex: 1;
}

.quiz-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.progress-bar {
  height: 4px;
  background: var(--surface-2);
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 999px;
  transition: width 0.35s ease;
  width: 0%;
}

.question-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  margin-bottom: 1.5rem;
}

.question-title {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.question-body {
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

.sequence-display {
  font-family: "Courier New", monospace;
  font-size: 1.5rem;
  letter-spacing: 0.05em;
  color: var(--accent);
}

.pattern-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  max-width: 200px;
  margin: 0 auto 0.5rem;
}

.pattern-cell {
  aspect-ratio: 1;
  border-radius: 8px;
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.pattern-cell.filled {
  background: var(--accent-dim);
  border-color: var(--accent);
}

.pattern-cell.question {
  border-style: dashed;
  color: var(--text-muted);
  font-weight: 700;
}

.options {
  display: grid;
  gap: 0.6rem;
}

.option {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--surface-2);
  border: 2px solid transparent;
  border-radius: 12px;
  padding: 0.85rem 1rem;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  text-align: left;
  font-family: var(--font);
  font-size: 0.95rem;
  color: var(--text);
  width: 100%;
}

.option:hover {
  border-color: rgba(255, 255, 255, 0.1);
}

.option.selected {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.option.correct {
  border-color: var(--accent);
  background: rgba(110, 231, 183, 0.2);
}

.option.wrong {
  border-color: var(--danger);
  background: rgba(248, 113, 113, 0.12);
}

.option-letter {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  flex-shrink: 0;
  color: var(--text-muted);
}

.option.selected .option-letter {
  background: var(--accent);
  color: #0c0e14;
}

.quiz-footer {
  display: flex;
  justify-content: flex-end;
}

/* Results */
.score-card {
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  margin-bottom: 1.5rem;
}

.score-ring {
  position: relative;
  width: 140px;
  height: 140px;
  margin: 0 auto 1.25rem;
}

.score-ring svg {
  transform: rotate(-90deg);
  width: 100%;
  height: 100%;
}

.ring-bg {
  fill: none;
  stroke: var(--surface-2);
  stroke-width: 8;
}

.ring-fill {
  fill: none;
  stroke: var(--accent);
  stroke-width: 8;
  stroke-linecap: round;
  stroke-dasharray: 326.73;
  stroke-dashoffset: 326.73;
  transition: stroke-dashoffset 1s ease;
}

.score-value {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.score-value span {
  font-family: var(--font-display);
  font-size: 2.5rem;
  line-height: 1;
  color: var(--accent);
}

.score-value small {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.25rem;
}

.score-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.breakdown {
  display: grid;
  gap: 0.6rem;
  margin-bottom: 2rem;
}

.breakdown-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.85rem 1rem;
}

.breakdown-item span:first-child {
  font-size: 0.9rem;
}

.breakdown-score {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--accent);
}

.disclaimer {
  margin-top: 2rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.5;
}

@media (max-width: 480px) {
  #app {
    padding: 1.25rem 1rem 3rem;
  }

  .question-card {
    padding: 1.25rem;
  }

  .question-body {
    font-size: 1.15rem;
  }
}

.topbar {
  position: relative;
  z-index: 2;
  max-width: 720px;
  margin: 0 auto;
  padding: 1rem 1.25rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  background: none;
  border: none;
  color: var(--text);
  font-family: var(--font-display);
  font-size: 1.15rem;
  cursor: pointer;
  text-decoration: none;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.who {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.btn-small {
  padding: 0.45rem 0.85rem;
  font-size: 0.82rem;
}

.badge-inline {
  margin-bottom: 0;
}

.auth-card, .pay-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.tab {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 10px;
  padding: 0.7rem;
  cursor: pointer;
  font-family: var(--font);
  font-weight: 600;
}

.tab.active {
  color: #0c0e14;
  background: var(--accent);
  border-color: var(--accent);
}

.auth-form {
  display: grid;
  gap: 0.9rem;
}

.price {
  font-family: var(--font-display);
  font-size: 2.4rem;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.75rem;
}

.pay-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  margin: 1.25rem 0 0.6rem;
}

.pay-modes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.pay-mode {
  background: var(--surface-2);
  border: 2px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  padding: 0.95rem 0.85rem;
  cursor: pointer;
  text-align: left;
  font-family: var(--font);
}

.pay-mode strong {
  display: block;
  margin-bottom: 0.2rem;
}

.pay-mode small {
  color: var(--text-muted);
}

.pay-mode.selected {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.pay-methods {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin: 1.25rem 0;
}

.pix-box {
  display: grid;
  gap: 0.75rem;
  justify-items: center;
}

.pix-box img {
  width: 220px;
  height: 220px;
  background: #fff;
  border-radius: 12px;
  padding: 0.5rem;
}

.pix-box textarea {
  width: 100%;
  min-height: 88px;
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.75rem;
  font-family: inherit;
  resize: none;
}

/* ===== Ranking LEFT (fixed) + Auth RIGHT (fixed); center #app stays 720px ===== */
.home-layout {
  display: block;
}

.home-ranking {
  margin-bottom: 1.75rem;
  overflow: visible;
}

.home-auth {
  margin-bottom: 1.75rem;
  overflow: visible;
}

.ranking-card,
.auth-side-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.1rem;
}

.ranking-card h2,
.auth-side-card h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: 0.25rem;
}

.ranking-sub,
.auth-sub {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

.home-ranking .ranking-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 0;
}

.home-ranking .ranking-item {
  display: grid;
  grid-template-columns: 2.1rem minmax(0, 1fr);
  align-items: start;
  gap: 0.35rem 0.5rem;
  padding: 0.55rem 0.65rem;
  background: var(--surface-2);
  border-radius: 10px;
  border: 1px solid var(--border);
}

.ranking-pos {
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--accent);
  line-height: 1.3;
  padding-top: 0.05rem;
}

.ranking-body {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
}

.ranking-nome {
  font-weight: 500;
  white-space: normal;
  overflow: visible;
  text-overflow: unset;
  overflow-wrap: anywhere;
  word-break: break-word;
  line-height: 1.3;
}

.ranking-stats {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.25rem 0.55rem;
  min-width: 0;
}

.home-ranking .ranking-iq {
  font-weight: 700;
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  line-height: 1.3;
}

.ranking-band {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-align: left;
  max-width: none;
  line-height: 1.3;
}

.ranking-empty {
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 0.5rem 0;
}

.name-field {
  margin-bottom: 1.25rem;
}

.name-field label,
.auth-field label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 0.45rem;
}

.name-field .req {
  color: var(--text-muted);
  font-weight: 400;
  font-size: 0.8rem;
}

.name-field input,
.auth-field input {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font: inherit;
  outline: none;
}

.auth-field {
  margin-bottom: 0.75rem;
}

.name-field input:focus,
.auth-field input:focus {
  border-color: rgba(110, 231, 183, 0.45);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.auth-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem;
  margin-bottom: 0.9rem;
}

.auth-tab {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 10px;
  padding: 0.55rem;
  cursor: pointer;
  font-family: var(--font);
  font-weight: 600;
  font-size: 0.85rem;
}

.auth-tab.active {
  color: #0c0e14;
  background: var(--accent);
  border-color: var(--accent);
}

.auth-panel {
  display: none;
}

.auth-panel.active {
  display: block;
}

.auth-actions {
  display: grid;
  gap: 0.55rem;
  margin-top: 0.5rem;
}

.btn-google {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  width: 100%;
  background: #fff;
  color: #1f1f1f;
  border: 1px solid #dadce0;
  border-radius: 12px;
  padding: 0.7rem 0.9rem;
  font-family: var(--font);
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  text-decoration: none;
}

.btn-google:hover {
  filter: brightness(0.97);
}

.btn-google[aria-disabled="true"],
.btn-google:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.78rem;
  margin: 0.35rem 0;
}

.auth-divider::before,
.auth-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

.auth-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.55rem;
}

.auth-user {
  font-size: 0.9rem;
  color: var(--text);
  margin-bottom: 0.75rem;
}

.auth-user strong {
  color: var(--accent);
}

.results-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin: 1.25rem 0 0.5rem;
}

.topbar-user {
  font-size: 0.82rem;
  color: var(--text-muted);
}

@media (min-width: 1100px) {
  .home-ranking {
    position: fixed;
    left: max(0.75rem, calc(50% - 360px - 16px - 260px));
    width: 250px;
    top: 5.5rem;
    z-index: 3;
    margin-bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    overflow: visible;
    max-height: none;
  }

  .home-auth {
    position: fixed;
    right: max(0.75rem, calc(50% - 360px - 16px - 260px));
    width: 260px;
    top: 5.5rem;
    z-index: 3;
    margin-bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    overflow: visible;
    max-height: none;
  }

  .home-ranking .ranking-card,
  .home-auth .auth-side-card,
  .home-auth .side-links {
    width: 100%;
    box-sizing: border-box;
  }

  .home-ranking .ranking-item {
    text-align: left;
  }
}

.side-links {
  margin-top: 1rem;
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
}

.side-links-block + .side-links-block {
  margin-top: 1rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border);
}

.side-links-title {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.55rem;
}

.side-links-list {
  list-style: none;
  display: grid;
  gap: 0.35rem;
  justify-items: center;
}

.side-links-list a {
  color: var(--text);
  text-decoration: none;
  font-size: 0.88rem;
}

.side-links-list a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.legal-page {
  max-width: 720px;
  margin: 0 auto;
}

.legal-back {
  display: inline-block;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
}

.legal-back:hover {
  color: var(--accent);
}

.legal-page h1 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 400;
  margin-bottom: 1.25rem;
}

.legal-body {
  color: var(--text);
  font-size: 0.98rem;
  line-height: 1.65;
}

.legal-body h3 {
  margin: 1.35rem 0 0.55rem;
  font-size: 1.05rem;
}

.legal-body p,
.legal-body ul,
.legal-body ol {
  margin-bottom: 0.75rem;
  color: var(--text-muted);
}

.legal-body ul,
.legal-body ol {
  padding-left: 1.25rem;
}

.legal-body a {
  color: var(--accent);
}

.legal-body .price-line {
  font-size: 1.15rem;
  color: var(--text);
  margin: 1rem 0 1.25rem;
}

/* side panels: static, no inner scroll */