/* ============================================================
   Denão Matemática — Design System v1 (dark neon)
   ============================================================ */

:root {
  --bg:          #080b18;
  --card:        rgba(255,255,255,0.05);
  --card-border: rgba(255,255,255,0.10);
  --yellow:      #FFE135;
  --orange:      #FF6B35;
  --pink:        #FF2D78;
  --cyan:        #00F0FF;
  --green:       #00FF9D;
  --purple:      #BF5FFF;
  --blue:        #4D9FFF;
  --white:       #FFFFFF;
  --muted:       rgba(255,255,255,0.55);
  --r:           18px;

  /* aliases para compatibilidade com JS inline */
  --color-primary:    #4D9FFF;
  --color-success:    #00FF9D;
  --color-warning:    #FFE135;
  --color-danger:     #FF2D78;
  --color-purple:     #BF5FFF;
  --color-bg:         #080b18;
  --color-surface:    rgba(255,255,255,0.05);
  --color-surface2:   rgba(255,255,255,0.08);
  --color-text:       #FFFFFF;
  --color-text-muted: rgba(255,255,255,0.55);
  --radius:           18px;
  --radius-sm:        13px;
  --shadow:           0 4px 28px rgba(0,0,0,.6);
  --transition:       .2s ease;
}

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

body {
  font-family: 'Nunito', sans-serif;
  background: var(--bg);
  color: var(--white);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
  position: relative;
}

/* fundo animado com gradientes radiais */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 15% 20%, rgba(191,95,255,.22) 0%, transparent 55%),
    radial-gradient(ellipse 50% 50% at 85% 75%, rgba(0,240,255,.18) 0%, transparent 55%),
    radial-gradient(ellipse 40% 40% at 50% 50%, rgba(255,45,120,.10) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
  animation: bgPulse 10s ease-in-out infinite alternate;
}

@keyframes bgPulse {
  0%   { opacity: .6 }
  100% { opacity: 1  }
}

a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: rgba(255,255,255,.03); }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,.18); border-radius: 999px; }

/* ---------- Layout ---------- */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 1rem;
  position: relative;
  z-index: 1;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  padding: .65rem 1.5rem;
  border: none;
  border-radius: var(--radius-sm);
  font-family: 'Boogaloo', cursive;
  font-size: 1.05rem;
  letter-spacing: .8px;
  font-weight: 700;
  cursor: pointer;
  transition: transform .15s, box-shadow .15s;
  position: relative;
  overflow: hidden;
}
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,.14), transparent);
  border-radius: inherit;
  pointer-events: none;
}
.btn:hover:not(:disabled)  { transform: translateY(-2px); }
.btn:active:not(:disabled) { transform: scale(.97); }
.btn:disabled { opacity: .4; cursor: not-allowed; }

.btn-primary {
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: var(--bg);
  box-shadow: 0 3px 16px rgba(0,240,255,.35);
}
.btn-primary:hover:not(:disabled) {
  box-shadow: 0 6px 24px rgba(0,240,255,.5), 0 0 30px rgba(77,159,255,.3);
}

.btn-success {
  background: linear-gradient(135deg, var(--green), var(--cyan));
  color: var(--bg);
  box-shadow: 0 3px 16px rgba(0,255,157,.3);
}
.btn-success:hover:not(:disabled) {
  box-shadow: 0 6px 24px rgba(0,255,157,.5);
}

.btn-danger {
  background: linear-gradient(135deg, var(--orange), var(--pink));
  color: var(--white);
  box-shadow: 0 3px 16px rgba(255,45,120,.35);
}
.btn-danger:hover:not(:disabled) {
  box-shadow: 0 6px 24px rgba(255,45,120,.55);
}

.btn-ghost {
  background: transparent;
  color: var(--cyan);
  border: 2px solid rgba(0,240,255,.4);
}
.btn-ghost:hover:not(:disabled) {
  border-color: var(--cyan);
  background: rgba(0,240,255,.08);
  box-shadow: 0 0 14px rgba(0,240,255,.2);
}

.btn-full { width: 100%; }

/* ---------- Cards ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--r);
  padding: 1.4rem 1.2rem;
  margin-bottom: 1rem;
  backdrop-filter: blur(14px);
}

/* ---------- Section headers ---------- */
.section-header {
  font-family: 'Boogaloo', cursive;
  font-size: 1.1rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--yellow);
  margin-bottom: .4rem;
  display: flex;
  align-items: center;
  gap: 7px;
}
.section-sub {
  font-size: .85rem;
  color: var(--muted);
  margin-bottom: 1rem;
}

/* ---------- Form ---------- */
.form-group { margin-bottom: 1rem; }
.form-group label {
  display: block;
  margin-bottom: .3rem;
  font-size: .9rem;
  font-weight: 700;
  color: var(--muted);
}
.form-group input {
  width: 100%;
  padding: .75rem 1rem;
  background: rgba(255,255,255,.07);
  border: 2px solid rgba(255,255,255,.18);
  border-radius: var(--radius-sm);
  color: var(--white);
  font-family: 'Nunito', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  outline: none;
  transition: border-color .25s, box-shadow .25s;
}
.form-group input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0,240,255,.18), 0 0 18px rgba(0,240,255,.15);
}
.form-group input::placeholder { color: rgba(255,255,255,.3); font-weight: 600; }
.form-error { color: var(--pink); font-size: .82rem; margin-top: .25rem; font-weight: 700; }

/* ---------- Header ---------- */
.app-header {
  background: rgba(8,11,24,.85);
  border-bottom: 1px solid var(--card-border);
  backdrop-filter: blur(20px);
  padding: .75rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}
.app-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-family: 'Boogaloo', cursive;
  font-size: 1.55rem;
  letter-spacing: 1.5px;
  background: linear-gradient(135deg, var(--yellow) 0%, var(--orange) 60%, var(--pink) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-actions { display: flex; gap: 1.1rem; align-items: center; }
#nav-username { font-size: 1.05rem; font-weight: 700; }

/* ---------- Game Area ---------- */
#game-screen { display: none; }
#game-screen.active { display: block; }

.progress-bar {
  height: 7px;
  background: rgba(255,255,255,.07);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 1.2rem;
}
.progress-bar__fill {
  height: 100%;
  background: linear-gradient(90deg, var(--purple), var(--pink), var(--orange));
  border-radius: 999px;
  transition: width .45s ease;
}

/* ---------- Game Header ---------- */
.game-hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 7px;
  padding: 4px 0 12px;
}

.info-box {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  text-align: center;
  flex: 1;
  min-width: 60px;
  backdrop-filter: blur(12px);
}

.info-lbl {
  font-size: .58rem;
  font-weight: 900;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .5px;
  white-space: nowrap;
  margin-bottom: 2px;
}

.info-val {
  font-family: 'Boogaloo', cursive;
  font-size: 1.35rem;
  letter-spacing: .5px;
  line-height: 1;
}

.iv-timer { color: var(--cyan); }
.iv-score { color: var(--yellow); }
.iv-round { color: var(--orange); }

.info-val.urgent {
  color: var(--pink);
  animation: pulse .5s infinite;
}

@keyframes pulse { 0%,100% { opacity:1 } 50% { opacity:.45 } }

/* Pontos disponíveis na questão */
.q-pts {
  font-size: .8rem;
  font-weight: 800;
  color: var(--muted);
  text-align: center;
  margin: 4px 0 12px;
}

.pts-num {
  font-family: 'Boogaloo', cursive;
  font-size: 1rem;
  font-weight: 900;
  color: var(--green);
}

.q-level-topic {
  font-size: .8rem;
  color: var(--muted);
  font-weight: 700;
  margin-bottom: .4rem;
  text-align: center;
}

.question-text {
  font-family: 'Boogaloo', cursive;
  font-size: clamp(1.4rem, 5.5vw, 2rem);
  letter-spacing: .5px;
  line-height: 1.2;
  margin: .8rem 0 1.2rem;
  text-align: center;
  color: var(--white);
}

/* Question card top accent line */
.card:has(.question-text) {
  position: relative;
  overflow: hidden;
}
.card:has(.question-text)::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--purple), var(--pink), var(--cyan));
}

.options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .8rem;
}

.option-btn {
  padding: 1rem .8rem;
  background: rgba(255,255,255,.05);
  border: 2px solid rgba(255,255,255,.13);
  border-radius: var(--radius-sm);
  color: var(--white);
  font-family: 'Nunito', sans-serif;
  font-size: 1rem;
  font-weight: 800;
  cursor: pointer;
  transition: all .22s;
  text-align: center;
  line-height: 1.25;
  position: relative;
  overflow: hidden;
}
.option-btn::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-sm);
  box-shadow: 0 0 0 0 transparent;
  transition: box-shadow .3s;
  pointer-events: none;
}
.option-btn:hover:not(:disabled) {
  background: rgba(0,240,255,.08);
  border-color: var(--cyan);
}
.option-btn:hover:not(:disabled)::after {
  box-shadow: 0 0 14px 2px rgba(0,240,255,.35);
}
.option-btn.correct {
  background: rgba(0,255,157,.15);
  border-color: var(--green);
  color: var(--green);
}
.option-btn.correct::after {
  box-shadow: 0 0 14px 2px rgba(0,255,157,.5);
}
.option-btn.wrong {
  background: rgba(255,45,120,.12);
  border-color: var(--pink);
  color: var(--pink);
}
.option-btn.wrong::after {
  box-shadow: 0 0 14px 2px rgba(255,45,120,.4);
}
.option-btn:disabled { cursor: default; }

/* ---------- Topic Accordion ---------- */
#topics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  align-items: start;
}

@media (max-width: 500px) {
  #topics-grid { grid-template-columns: 1fr; }
}

.topic-cat {
  border-radius: var(--radius-sm);
  border: 1px solid var(--card-border);
  background: var(--card);
  backdrop-filter: blur(14px);
  overflow: hidden;
  transition: border-color .25s, box-shadow .25s;
}

.topic-cat.open {
  border-color: var(--cat-color, var(--purple));
  box-shadow: 0 0 18px color-mix(in srgb, var(--cat-color, var(--purple)) 40%, transparent);
}

.topic-cat-header {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 14px;
  background: transparent;
  border: none;
  color: var(--white);
  cursor: pointer;
  font-family: 'Boogaloo', cursive;
  font-size: 1rem;
  letter-spacing: .5px;
  text-align: left;
  transition: background .2s, color .2s;
  --cat-color: #BF5FFF;
}

.topic-cat-header:hover {
  background: rgba(255,255,255,.04);
}

.topic-cat.open .topic-cat-header {
  color: var(--cat-color, var(--purple));
}

.topic-cat-left {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 9px;
}

.topic-cat-emoji { font-size: 1.1rem; }

.topic-cat-name { font-weight: 700; }

.topic-cat-arrow {
  font-size: 1.3rem;
  line-height: 1;
  color: var(--muted);
  transition: transform .3s, color .25s;
}

.topic-cat.open .topic-cat-arrow {
  transform: rotate(90deg);
  color: var(--cat-color, var(--purple));
}

/* panel open/close via max-height */
.topic-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}

.topic-cat.open .topic-panel {
  max-height: 600px;
}

.topic-empty {
  padding: 10px 14px 12px;
  font-size: .8rem;
  font-weight: 700;
  color: var(--muted);
  font-style: italic;
}

/* skills grid dentro do panel */
.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  padding: 4px 10px 12px;
}

@media (max-width: 340px) {
  .skills-grid { grid-template-columns: 1fr; }
}

.skill-btn {
  background: rgba(255,255,255,.04);
  border: 2px solid rgba(255,255,255,.10);
  border-radius: 11px;
  padding: 9px 7px;
  cursor: pointer;
  color: var(--white);
  font-family: 'Nunito', sans-serif;
  font-size: .8rem;
  font-weight: 800;
  text-align: center;
  line-height: 1.3;
  transition: all .22s;
  position: relative;
  overflow: hidden;
}

.skill-btn::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 11px;
  box-shadow: 0 0 0 0 transparent;
  transition: box-shadow .3s;
  pointer-events: none;
}

.skill-btn:hover:not(.skill-locked):not(.skill-sel) {
  background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.25);
}

.skill-btn.skill-sel {
  background: rgba(191,95,255,.15);
  border-color: var(--purple);
  color: #d9b3ff;
}

.skill-btn.skill-sel::after {
  box-shadow: 0 0 12px 1px rgba(191,95,255,.55), 0 0 22px 3px rgba(191,95,255,.25);
}

.skill-btn.skill-locked {
  opacity: .4;
  cursor: not-allowed;
}

/* ---------- Score / Result ---------- */
.result-card { text-align: center; }

.res-motivacional {
  font-family: 'Boogaloo', cursive;
  font-size: clamp(1.05rem, 4vw, 1.4rem);
  text-align: center;
  margin: 1rem 0 .5rem;
  padding: .8rem 1.2rem;
  border-radius: var(--radius-sm);
  background: rgba(255,225,53,.08);
  border: 1px solid rgba(255,225,53,.28);
  color: var(--yellow);
  letter-spacing: .4px;
  line-height: 1.35;
  animation: popIn .45s cubic-bezier(.34,1.56,.64,1);
}

.stars {
  font-size: 2.5rem;
  letter-spacing: .3rem;
  margin: 1rem 0;
  animation: popIn .4s cubic-bezier(.34,1.56,.64,1);
}

.score-big {
  font-family: 'Boogaloo', cursive;
  font-size: 3.4rem;
  color: var(--yellow);
  line-height: 1;
  letter-spacing: 1px;
  filter: drop-shadow(0 0 16px rgba(255,225,53,.5));
}

.stat-row {
  display: flex;
  justify-content: space-around;
  gap: .8rem;
  margin: 1rem 0;
}
.stat-item {
  flex: 1;
  text-align: center;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: .8rem .5rem;
}
.stat-item strong {
  display: block;
  font-family: 'Boogaloo', cursive;
  font-size: 1.6rem;
  letter-spacing: .5px;
}
.stat-item span {
  font-size: .7rem;
  font-weight: 900;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .4px;
}

/* ---------- Modal ---------- */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.75);
  z-index: 200;
  place-items: center;
  backdrop-filter: blur(4px);
}
.modal-overlay.open { display: grid; }

.modal {
  background: rgba(12,16,30,.95);
  border: 1px solid var(--card-border);
  border-radius: var(--r);
  padding: 1.8rem 1.5rem;
  width: min(440px, 95vw);
  backdrop-filter: blur(20px);
  box-shadow: 0 8px 48px rgba(0,0,0,.7);
}
.modal h2 {
  font-family: 'Boogaloo', cursive;
  font-size: 1.6rem;
  letter-spacing: 1px;
  margin-bottom: .8rem;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Auth tabs ---------- */
#tab-buttons {
  margin-bottom: 1.2rem;
}

/* ---------- Plan badge / badges ---------- */
.badge {
  display: inline-block;
  padding: .15rem .55rem;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 700;
}
.badge-free    { background: rgba(255,255,255,.08); color: var(--muted); border: 1px solid var(--card-border); }
.badge-premium { background: linear-gradient(135deg, var(--cyan), var(--blue)); color: var(--bg); }
.badge-pro     { background: linear-gradient(135deg, var(--purple), var(--pink)); color: var(--white); }

/* ---------- Leaderboard ---------- */
.leaderboard-list { list-style: none; }
.leaderboard-list li {
  display: flex;
  align-items: center;
  gap: .8rem;
  padding: .65rem 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 6px;
  background: var(--card);
  border: 1px solid var(--card-border);
  animation: slideIn .3s ease both;
}
.leaderboard-list li:nth-child(1) { border-color: var(--yellow); background: rgba(255,225,53,.07); }
.leaderboard-list li:nth-child(2) { border-color: #C0C0C0; background: rgba(192,192,192,.05); }
.leaderboard-list li:nth-child(3) { border-color: #CD7F32; background: rgba(205,127,50,.05); }

.rank {
  font-family: 'Boogaloo', cursive;
  font-size: 1.3rem;
  width: 2rem;
  text-align: center;
}

/* ---------- Toast ---------- */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.toast {
  padding: .75rem 1.2rem;
  border-radius: var(--radius-sm);
  color: var(--white);
  font-weight: 700;
  font-size: .9rem;
  box-shadow: 0 4px 20px rgba(0,0,0,.5);
  animation: slideInToast .3s ease;
  backdrop-filter: blur(10px);
}
.toast.success {
  background: rgba(0,255,157,.15);
  border: 1px solid rgba(0,255,157,.4);
  color: var(--green);
  box-shadow: 0 4px 20px rgba(0,255,157,.2);
}
.toast.error {
  background: rgba(255,45,120,.15);
  border: 1px solid rgba(255,45,120,.4);
  color: var(--pink);
  box-shadow: 0 4px 20px rgba(255,45,120,.2);
}
.toast.info {
  background: rgba(77,159,255,.15);
  border: 1px solid rgba(77,159,255,.4);
  color: var(--blue);
  box-shadow: 0 4px 20px rgba(77,159,255,.2);
}

@keyframes slideInToast {
  from { opacity:0; transform:translateX(60px) }
  to   { opacity:1; transform:none }
}

/* ---------- Rounds Input ---------- */
.round-inp {
  width: 76px;
  background: rgba(255,255,255,.07);
  border: 2px solid rgba(255,255,255,.18);
  border-radius: 12px;
  color: var(--white);
  font-family: 'Boogaloo', cursive;
  font-size: 1.3rem;
  font-weight: 900;
  padding: 8px 6px;
  outline: none;
  text-align: center;
  transition: border-color .2s, box-shadow .2s;
}
.round-inp:focus {
  border-color: var(--yellow);
  box-shadow: 0 0 0 3px rgba(255,225,53,.15);
}
.round-inp::-webkit-inner-spin-button,
.round-inp::-webkit-outer-spin-button {
  opacity: .6;
  cursor: pointer;
}

/* ---------- Open Answer ---------- */
.open-answer-wrapper {
  display: flex;
  gap: .8rem;
  align-items: center;
  margin-top: .5rem;
}
.open-answer-input {
  flex: 1;
  background: rgba(255,255,255,.07);
  border: 2px solid rgba(255,255,255,.18);
  border-radius: var(--radius-sm);
  color: var(--white);
  font-family: 'Boogaloo', cursive;
  font-size: 1.45rem;
  text-align: center;
  padding: .75rem 1rem;
  outline: none;
  letter-spacing: .5px;
  transition: border-color .25s, box-shadow .25s;
}
.open-answer-input:focus {
  border-color: var(--yellow);
  box-shadow: 0 0 0 3px rgba(255,225,53,.18), 0 0 16px rgba(255,225,53,.15);
}
.open-answer-input::placeholder {
  font-family: 'Nunito', sans-serif;
  font-size: .88rem;
  font-weight: 700;
  color: rgba(255,255,255,.28);
}
.open-answer-input:disabled { opacity: .6; }

/* ---------- Answer Feedback Banner ---------- */
.answer-feedback {
  margin-top: 1rem;
  padding: .9rem 1.2rem;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 900;
  text-align: center;
  animation: popIn .28s cubic-bezier(.34,1.56,.64,1);
}
.answer-feedback.correct {
  background: rgba(0,255,157,.10);
  border: 1px solid rgba(0,255,157,.3);
  color: var(--green);
  box-shadow: 0 0 18px rgba(0,255,157,.15);
}
.answer-feedback.wrong {
  background: rgba(255,45,120,.10);
  border: 1px solid rgba(255,45,120,.3);
  color: var(--pink);
  box-shadow: 0 0 18px rgba(255,45,120,.15);
}
.answer-feedback.timeout {
  background: rgba(255,225,53,.10);
  border: 1px solid rgba(255,225,53,.3);
  color: var(--yellow);
  box-shadow: 0 0 18px rgba(255,225,53,.15);
}

@keyframes popIn {
  from { transform: scale(.65); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}

.open-feedback {
  margin-top: .8rem;
  padding: .6rem 1rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-weight: 700;
  font-size: .95rem;
  animation: fadeIn .2s ease;
}
.open-feedback--correct {
  background: rgba(0,255,157,.10);
  color: var(--green);
  border-left: 3px solid var(--green);
}
.open-feedback--wrong {
  background: rgba(255,45,120,.10);
  color: var(--pink);
  border-left: 3px solid var(--pink);
}
@keyframes fadeIn {
  from { opacity:0; transform:translateY(-6px) }
  to   { opacity:1; transform:none }
}

/* ---------- Plan Cards ---------- */
.plan-card {
  background: var(--card);
  border: 2px solid var(--card-border);
  border-radius: var(--r);
  padding: 1.4rem 1rem;
  text-align: center;
  position: relative;
  transition: border-color var(--transition), transform var(--transition);
  display: flex;
  flex-direction: column;
  gap: .5rem;
  backdrop-filter: blur(14px);
}
.plan-card:hover { transform: translateY(-3px); }
.plan-card.featured {
  border-color: var(--cyan);
  background: rgba(0,240,255,.05);
  box-shadow: 0 0 30px rgba(0,240,255,.15);
}
.plan-card .plan-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: var(--bg);
  font-family: 'Boogaloo', cursive;
  font-size: .8rem;
  font-weight: 700;
  padding: .2rem .9rem;
  border-radius: 999px;
  white-space: nowrap;
  letter-spacing: .5px;
}
.plan-card .plan-name {
  font-family: 'Boogaloo', cursive;
  font-size: 1.3rem;
  letter-spacing: 1px;
  color: var(--white);
}
.plan-card .plan-price {
  font-family: 'Boogaloo', cursive;
  font-size: 2.2rem;
  color: var(--yellow);
  line-height: 1;
  letter-spacing: 1px;
}
.plan-card .plan-price span { font-family: 'Nunito', sans-serif; font-size: .9rem; color: var(--muted); }
.plan-card .plan-features {
  list-style: none;
  text-align: left;
  font-size: .85rem;
  color: var(--muted);
  flex: 1;
  margin: .5rem 0;
}
.plan-card .plan-features li { padding: .25rem 0; font-weight: 700; }
.plan-card .plan-features li::before { content: '✓ '; color: var(--green); font-weight: 900; }
.plan-card .plan-features li.locked::before { content: '✗ '; color: var(--pink); }
.plan-card .plan-features li.locked { opacity: .45; }

/* ---------- Level Selector Buttons ---------- */
#levels-grid { grid-template-columns: 1fr 1fr; }

@media (max-width: 500px) {
  #levels-grid { grid-template-columns: 1fr; }
}

.level-btn {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .85rem 1rem;
  background: rgba(255,255,255,.04);
  border: 2px solid rgba(255,255,255,.10);
  border-radius: var(--radius-sm);
  color: var(--white);
  font-family: 'Nunito', sans-serif;
  cursor: pointer;
  transition: border-color .25s, background .25s, box-shadow .25s;
  text-align: left;
  width: 100%;
  position: relative;
}
.level-btn:hover:not(:disabled) {
  background: rgba(255,255,255,.07);
  border-color: rgba(255,255,255,.22);
}
.level-btn.selected {
  border-color: var(--lvl-color, var(--cyan));
  background: color-mix(in srgb, var(--lvl-color, var(--cyan)) 12%, transparent);
  box-shadow: 0 0 18px color-mix(in srgb, var(--lvl-color, var(--cyan)) 50%, transparent);
}
.level-btn:disabled { opacity: .45; cursor: not-allowed; }

.lvl-emoji { font-size: 1.4rem; flex-shrink: 0; line-height: 1; }

.lvl-content { flex: 1; min-width: 0; }

.lvl-name {
  display: block;
  font-family: 'Boogaloo', cursive;
  font-size: 1rem;
  letter-spacing: .5px;
  line-height: 1.2;
  transition: color .25s;
}
.level-btn.selected .lvl-name { color: var(--lvl-color, var(--cyan)); }

.lvl-sub {
  display: block;
  font-size: .68rem;
  font-weight: 800;
  color: var(--muted);
  margin-top: 2px;
}

.lvl-stars {
  font-size: 1.15rem;
  letter-spacing: 2px;
  color: var(--yellow);
  flex-shrink: 0;
  text-shadow: 0 0 8px rgba(255,225,53,.6);
}

/* ---------- Particles (v1 pattern) ---------- */
.particles {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.pt {
  position: absolute;
  border-radius: 50%;
  animation: floatPt linear infinite;
}
@keyframes floatPt {
  0%   { transform: translateY(110vh) rotate(0deg);   opacity: 0; }
  8%   { opacity: .7; }
  90%  { opacity: .6; }
  100% { transform: translateY(-8vh)  rotate(720deg); opacity: 0; }
}

/* ---------- Home Hero ---------- */
.home-hero {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  padding-top: .5rem;
}
.home-title h1 {
  font-family: 'Boogaloo', cursive;
  font-size: clamp(2.4rem, 9vw, 4rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: 2px;
  text-align: left;
}
.home-title h1:first-child {
  background: linear-gradient(135deg, var(--yellow) 0%, var(--orange) 60%, var(--pink) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 18px rgba(255,107,53,.4));
}
.home-title h1:nth-child(2) {
  background: linear-gradient(135deg, var(--cyan) 0%, var(--blue) 50%, var(--purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 18px rgba(0,240,255,.35));
}
.home-title p {
  font-size: .9rem;
  font-weight: 700;
  color: var(--muted);
}

/* ---------- Avatar LED ---------- */
.avatar-led {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  padding: 5px;
  background: linear-gradient(135deg, #111 0%, var(--yellow) 50%, #111 100%);
  box-shadow:
    0 0 8px  2px  var(--yellow),
    0 0 18px 4px  rgba(255,225,53,.67),
    0 0 35px 8px  rgba(255,225,53,.33),
    0 0 5px  1px  #000 inset;
  animation: led-pulse 2s ease-in-out infinite;
}
.avatar-led img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  display: block;
}
@keyframes led-pulse {
  0%, 100% {
    box-shadow:
      0 0 8px  2px  var(--yellow),
      0 0 18px 4px  rgba(255,225,53,.67),
      0 0 35px 8px  rgba(255,225,53,.33),
      0 0 5px  1px  #000 inset;
  }
  50% {
    box-shadow:
      0 0 12px 4px  var(--yellow),
      0 0 28px 8px  rgba(255,225,53,.8),
      0 0 55px 14px rgba(255,225,53,.47),
      0 0 5px  1px  #000 inset;
  }
}

/* ---------- Level Up Overlay ---------- */
.lu-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.78);
  z-index: 250;
  place-items: center;
  backdrop-filter: blur(6px);
}
.lu-overlay.open { display: grid; }

.lu-card {
  background: rgba(12,16,30,.96);
  border: 1px solid var(--card-border);
  border-radius: var(--r);
  padding: 2rem 1.5rem;
  width: min(400px, 92vw);
  text-align: center;
  animation: popIn .45s cubic-bezier(.34,1.56,.64,1);
  backdrop-filter: blur(20px);
  box-shadow: 0 0 60px rgba(0,255,157,.15), 0 8px 48px rgba(0,0,0,.7);
}

.lu-emoji-anim {
  font-size: 4rem;
  margin-bottom: .4rem;
  animation: spinBounce .6s cubic-bezier(.34,1.56,.64,1);
  display: block;
}

@keyframes spinBounce {
  from { transform: scale(0) rotate(-200deg); }
  to   { transform: scale(1) rotate(0deg); }
}

.lu-title {
  font-family: 'Boogaloo', cursive;
  font-size: 2rem;
  letter-spacing: 1px;
  background: linear-gradient(135deg, var(--yellow), var(--orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: .8rem;
}

.lu-completed {
  font-family: 'Boogaloo', cursive;
  font-size: 1.3rem;
  color: var(--cyan);
  margin-bottom: .4rem;
}

.lu-arrow {
  font-size: 1.4rem;
  color: var(--muted);
  margin: .3rem 0;
}

.lu-next-label {
  font-size: .72rem;
  font-weight: 900;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .6px;
  margin-bottom: .3rem;
}

.lu-next {
  font-family: 'Boogaloo', cursive;
  font-size: 1.5rem;
  color: var(--green);
  letter-spacing: .5px;
}

/* ---------- Star Particles ---------- */
.star-particle {
  position: absolute;
  pointer-events: none;
  z-index: 20;
  animation: starBurst 1s ease-out forwards;
}

@keyframes starBurst {
  0%   { transform: translate(0,0) scale(1);   opacity: 1; }
  100% { transform: translate(var(--dx,0), -70px) scale(.3); opacity: 0; }
}

/* ---------- Animations ---------- */
@keyframes slideIn {
  from { opacity: 0; transform: translateX(-20px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ---------- Dashboard de Progresso ---------- */

.prog-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.2rem;
}
.prog-title {
  font-family: 'Boogaloo', cursive;
  font-size: 1.5rem;
  letter-spacing: 1px;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Chips de período */
/* Seletor partidas × simulados na tela de progresso.
   Controle segmentado: os dois modos são alternativas de mesmo peso, então
   ficam lado a lado em vez de empilhados um depois do outro. */
.prog-mode-switch {
  display: flex;
  gap: 6px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 5px;
  margin-bottom: 1.1rem;
  backdrop-filter: blur(10px);
}
.prog-mode-btn {
  flex: 1;
  padding: 10px 12px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--muted);
  font-family: 'Nunito', sans-serif;
  font-size: .9rem;
  font-weight: 800;
  cursor: pointer;
  transition: all .2s;
  white-space: nowrap;
}
.prog-mode-btn:hover  { color: var(--cyan); }
.prog-mode-btn.active {
  background: rgba(0,240,255,.14);
  color: var(--cyan);
  box-shadow: 0 0 12px rgba(0,240,255,.18);
}

.period-chips {
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.period-chip {
  padding: 6px 14px;
  border-radius: 999px;
  border: 2px solid var(--card-border);
  background: var(--card);
  color: var(--muted);
  font-family: 'Nunito', sans-serif;
  font-size: .82rem;
  font-weight: 800;
  cursor: pointer;
  transition: all .2s;
  backdrop-filter: blur(10px);
  white-space: nowrap;
}
.period-chip:hover   { border-color: var(--cyan); color: var(--cyan); }
.period-chip.active  {
  border-color: var(--cyan);
  background: rgba(0,240,255,.12);
  color: var(--cyan);
  box-shadow: 0 0 12px rgba(0,240,255,.2);
}

/* Campo de datas personalizadas */
#custom-date-range { display: none; }
.custom-range-row {
  display: flex;
  gap: .8rem;
  align-items: flex-end;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}
.custom-range-row .form-group label {
  font-size: .75rem;
  margin-bottom: .2rem;
}
.custom-range-row .form-group input {
  padding: .5rem .8rem;
  font-size: .9rem;
  background: rgba(255,255,255,.07);
  border: 2px solid rgba(255,255,255,.18);
  border-radius: var(--radius-sm);
  color: var(--white);
  outline: none;
  width: 100%;
}
.custom-range-row .form-group input:focus {
  border-color: var(--cyan);
}

/* Cards de resumo */
.prog-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 1.2rem;
}
.prog-stat-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: 1rem .8rem;
  text-align: center;
  backdrop-filter: blur(14px);
}
.prog-stat-icon { font-size: 1.4rem; margin-bottom: .3rem; }
.prog-stat-val  {
  font-family: 'Boogaloo', cursive;
  font-size: 1.6rem;
  color: var(--yellow);
  line-height: 1;
  margin-bottom: .2rem;
}
.prog-stat-lbl  {
  font-size: .65rem;
  font-weight: 900;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .4px;
}

/* Histórico de partidas */
.prog-hist-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .9rem 1.2rem;
  font-family: 'Boogaloo', cursive;
  font-size: 1rem;
  letter-spacing: .5px;
  color: var(--yellow);
  border-bottom: 1px solid var(--card-border);
}
.prog-hist-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .85rem 1.2rem;
  border-bottom: 1px solid rgba(255,255,255,.05);
  transition: background .15s;
}
.prog-hist-row:last-child  { border-bottom: none; }
.prog-hist-row:hover       { background: rgba(255,255,255,.03); }

.prog-hist-left {
  display: flex;
  align-items: center;
  gap: .8rem;
}
.prog-hist-emoji { font-size: 1.3rem; }
.prog-hist-level {
  font-weight: 800;
  font-size: .9rem;
  color: var(--white);
}
.prog-hist-meta  {
  font-size: .72rem;
  color: var(--muted);
  font-weight: 700;
  margin-top: 2px;
}

.prog-hist-right {
  text-align: right;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
}
.prog-hist-score {
  font-family: 'Boogaloo', cursive;
  font-size: 1.1rem;
  color: var(--yellow);
  letter-spacing: .5px;
}
.prog-hist-stars { font-size: .75rem; letter-spacing: 1px; }
.prog-hist-acc   {
  font-size: .72rem;
  font-weight: 900;
  color: var(--cyan);
}
.prog-hist-topics {
  font-size: .68rem;
  color: var(--color-text-muted);
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 220px;
}
.prog-hist-rounds {
  font-size: .70rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.prog-loading, .prog-empty {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--muted);
  font-weight: 700;
  font-size: .9rem;
}

/* ---------- Ranking Mundial ---------- */
.rank-chip {
  padding: .4rem .9rem;
  border-radius: 999px;
  border: 2px solid var(--color-border);
  background: transparent;
  color: var(--color-text-muted);
  font-weight: 700;
  font-size: .85rem;
  cursor: pointer;
  transition: all .2s;
}
.rank-chip.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}
.ranking-list { display: flex; flex-direction: column; gap: .7rem; margin-bottom: 2rem; }
.rank-row {
  display: flex;
  align-items: center;
  gap: .9rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: .85rem 1rem;
}
.rank-podium { border-width: 2px; }
.rank-podium-1 { border-color: gold;   background: rgba(255,215,0,.07); }
.rank-podium-2 { border-color: silver; background: rgba(192,192,192,.07); }
.rank-podium-3 { border-color: #cd7f32; background: rgba(205,127,50,.07); }
.rank-pos { font-size: 1.4rem; min-width: 2.2rem; text-align: center; }
.rank-avatar {
  width: 42px; height: 42px; border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--cyan));
  display: flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: .95rem; color: #fff; flex-shrink: 0;
}
.rank-info { flex: 1; min-width: 0; }
.rank-name { font-weight: 800; font-size: 1rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rank-sub  { font-size: .72rem; color: var(--color-text-muted); margin-top: 2px; }
.rank-metrics { text-align: right; flex-shrink: 0; }
.rank-best  { font-size: 1.1rem; font-weight: 900; color: var(--color-primary); }
.rank-best span { font-size: .7rem; font-weight: 600; }
.rank-total { font-size: .72rem; color: var(--color-text-muted); }
.rank-acc   { font-size: .75rem; color: var(--cyan); font-weight: 700; letter-spacing: .5px; }
.rank-hits  { font-size: .70rem; color: var(--color-text-muted); }

/* ---------- Responsivo ---------- */
@media (max-width: 600px) {
  .options-grid { grid-template-columns: 1fr; }
  .question-text { font-size: 1.3rem; }
  .home-hero { flex-direction: column; text-align: center; }
  .home-title h1 { text-align: center; font-size: 2.6rem; }
  .avatar-led { width: 90px; height: 90px; }
  .stat-row { gap: .4rem; }
}

/* === Tela de Resultado — Duo de Avatares === */
.result-duo {
  display: flex;
  justify-content: center;
  gap: 2.5rem;
  margin-bottom: 1.4rem;
}
.result-duo-side {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .55rem;
}
.result-av-circle {
  width: 120px; height: 120px;
  border-radius: 50%;
  border: 4px solid var(--cyan);
  overflow: hidden;
  background: rgba(0,232,255,.08);
  display: flex; align-items: center; justify-content: center;
}
.result-av-circle img {
  width: 100%; height: 100%;
  border-radius: 50%;
  object-fit: cover;
  display: block;
}
.result-av-denao {
  border-color: gold;
  background: rgba(255,215,0,.08);
}
.result-duo-label {
  font-size: .75rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.result-trophy {
  font-size: 3.8rem;
  text-align: center;
  margin: .4rem 0 .1rem;
  animation: trophy-pop .5s cubic-bezier(.36,1.56,.64,1) both;
}
@keyframes trophy-pop {
  from { transform: scale(0) rotate(-15deg); opacity: 0; }
  to   { transform: scale(1) rotate(0deg);  opacity: 1; }
}
.result-winner-name {
  text-align: center;
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--cyan);
  letter-spacing: .06em;
  text-transform: lowercase;
  margin-bottom: .4rem;
}

/* === Avatar círculo no nav === */
.nav-av-circle {
  width: 72px; height: 72px;
  border-radius: 50%;
  border: 3px solid var(--cyan);
  background: rgba(0,232,255,.1);
  padding: 0;
  cursor: pointer;
  overflow: hidden;
  flex-shrink: 0;
  transition: transform .15s, box-shadow .15s;
  vertical-align: middle;
}
.nav-av-circle:hover {
  transform: scale(1.08);
  box-shadow: 0 0 12px 3px rgba(0,232,255,.6);
}
.nav-av-circle img {
  width: 100%; height: 100%;
  border-radius: 50%;
  object-fit: cover;
  display: block;
}

/* Modal de avatar */
.av-modal { max-width: 520px; width: 95vw; }
.av-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}
.av-modal-header h3 { margin: 0; font-size: 1.2rem; }

/* Grid de avatares (dentro do modal) */
.av-pick-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: .35rem;
  padding: .4rem;
  scrollbar-width: thin;
  scrollbar-color: var(--cyan) transparent;
}
.av-pick-grid--modal {
  max-height: 420px;
  overflow-y: auto;
}
.av-pick-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .15rem;
  cursor: pointer;
  padding: .3rem .1rem;
  border-radius: 8px;
  transition: background .15s, outline .1s;
  outline: 2px solid transparent;
}
.av-pick-item:hover { background: rgba(255,255,255,.08); }
.av-pick-item.selected {
  background: rgba(0,232,255,.12);
  outline-color: var(--cyan);
}
.av-pick-item img {
  width: 52px; height: 52px;
  border-radius: 50%;
  display: block;
}
.av-pick-item span {
  font-size: .55rem;
  color: var(--color-text-muted);
  text-align: center;
  line-height: 1.2;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Rank avatar com SVG real */
.rank-avatar img {
  width: 100%; height: 100%;
  border-radius: 50%;
  display: block;
}
.rank-avatar.has-img {
  background: none;
  padding: 0;
}