/* ===================== TOKENS ===================== */
:root{
  --bg: #f5f5f5;
  --surface: #FFFFFF;
  --surface-muted: #e8e8ea;
  --text: #1E2230;
  --text-muted: #767B8A;

  --accent: #ff6a2b;
  --accent-dark: #E2562F;
  --accent-soft: #FFE7DD;

  --success: #20A968;
  --success-soft: #DFF6E8;
  --danger: #E14B4B;
  --danger-soft: #FDE3E3;

  --border: #E7E8EE;

  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-pill: 16px;

  --font-display: 'JetBrains Mono', monospace;
  --font-body: 'JetBrains Mono', monospace;
  --font-title: 'Archivo', sans-serif;

  /* tokens reutilizados por flags.css (el lienzo de las banderas) */
  --paper-dim: var(--surface-muted);
  --brass: var(--accent);

  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

*{ box-sizing:border-box; -webkit-tap-highlight-color: transparent; }
html,body{ margin:0; padding:0; height:100%; }
body{
  background:
    radial-gradient(circle, rgba(30,34,48,0.07) 1px, transparent 1.6px) 0 0/18px 18px,
    var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  min-height:100vh;
  min-height:100dvh;
  overflow-x:hidden;
}

#app{ position:relative; z-index:1; min-height:100vh; min-height:100dvh; display:flex; flex-direction:column; }

.screen{
  display:none;
  flex:1;
  flex-direction:column;
  padding: calc(16px + var(--safe-top)) 16px calc(16px + var(--safe-bottom));
}
.screen.active{
  display:flex;
  animation: screenIn .35s ease both;
}
@keyframes screenIn{
  from{ opacity:0; transform:translateY(8px); }
  to{ opacity:1; transform:translateY(0); }
}

button{ font-family:inherit; cursor:pointer; border:none; background:none; color:inherit; }
input{ font-family:inherit; }

/* ===================== BOTONES ===================== */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  min-height:48px; padding:12px 20px;
  border-radius:var(--radius-pill);
  font-family:var(--font-display); font-weight:600; font-size:16px;
  transition: transform .15s ease, background-color .15s ease;
}
.btn:active{ transform:scale(0.96); }

.btn-primary{
  background:var(--accent); color:#fff;
}
.btn-primary:hover{ background:var(--accent-dark); }

.btn-ghost{
  background:var(--surface); color:var(--text);
  border:1.5px solid var(--border);
}
.btn-ghost:hover{ border-color:var(--accent); color:var(--accent-dark); }

.icon-btn{
  width:44px; height:44px; min-height:44px;
  display:flex; align-items:center; justify-content:center;
  border-radius:var(--radius-pill);
  background:var(--surface);
  font-size:18px;
  transition: transform .15s ease;
}
.icon-btn:active{ transform:scale(0.92); }
.icon-btn--ghost{ background:transparent; border:1.5px solid var(--border); color:var(--text-muted); }
.icon-btn--labeled{
  width:auto; gap:8px; padding:0 18px 0 14px;
  font-family:var(--font-display); font-weight:600; font-size:14px; color:var(--text);
}
.icon-btn--accent{ color:var(--accent); }
.icon-btn--accent span{ color:var(--text); }

.btn-icon{ width:18px; height:18px; flex-shrink:0; }
.btn-mute .icon-mute{ display:none; }
.btn-mute.is-muted .icon-sound{ display:none; }
.btn-mute.is-muted .icon-mute{ display:block; }

/* Toggle de idioma: muestra las dos opciones a la vez, con la activa
   resaltada por una "píldora" que se desliza, al estilo claro/oscuro. */
.lang-toggle{
  position:relative; display:flex;
  height:44px; padding:3px; box-sizing:border-box;
  border-radius:var(--radius-pill);
  background:var(--surface-muted);
}
.lang-toggle-thumb{
  position:absolute; top:3px; left:3px;
  width:calc(50% - 3px); height:calc(100% - 6px);
  border-radius:var(--radius-pill);
  background:var(--text);
  transition: transform .25s cubic-bezier(.4,0,.2,1);
}
.lang-toggle.is-en .lang-toggle-thumb{ transform:translateX(100%); }
.lang-toggle-option{
  position:relative; z-index:1;
  flex:1; min-width:34px; padding:0 10px;
  display:flex; align-items:center; justify-content:center;
  border:none; background:transparent; cursor:pointer;
  font-family:var(--font-display); font-weight:700; font-size:13px; letter-spacing:.02em;
  color:var(--text-muted);
  transition: color .2s ease;
}
.lang-toggle-option.is-active{ color:#fff; }

/* ===================== TOPBAR (menú y juego) ===================== */
.topbar{ position:relative; z-index:1; display:flex; align-items:center; justify-content:space-between; gap:12px; }
.topbar-right{ display:flex; gap:8px; }
.topbar .icon-btn{ width:36px; height:36px; min-height:36px; font-size:15px; }
.topbar .icon-btn--labeled{ width:auto; padding:0 14px 0 12px; gap:6px; font-size:12px; }
.topbar .lang-toggle{ height:36px; }
.topbar .lang-toggle-option{ min-width:28px; padding:0 8px; font-size:11px; }

/* ===================== MENÚ ===================== */
.menu-center{ position:relative; z-index:1;
  flex:1; display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap:10px; text-align:center; padding-bottom: 6vh;
}
.menu-kicker{
  margin:0; font-family:var(--font-display); font-weight:400; font-size:14px;
  letter-spacing:.18em; text-transform:uppercase; color:var(--text-muted);
  animation: fadeUp .5s ease both;
}
.site-title{
  font-family:var(--font-title); font-weight:800;
  font-size: clamp(34px, 9vw, 52px);
  margin:0 0 8px; color:var(--text);
  animation: popIn .5s cubic-bezier(.34,1.56,.64,1) both;
}
.site-title .accent{ color:var(--accent); }
.btn-play{
  width:100%; max-width:360px; height:56px;
  font-size: 19px; padding: 0 24px; gap:10px;
  animation: fadeUp .5s ease .2s both;
}
.btn-quiz{
  width:100%; max-width:360px; height:56px; margin-top:10px;
  background:var(--surface); color:var(--text);
  border:1.5px solid var(--text);
  font-size:15px; padding:0 24px; gap:10px;
  animation: fadeUp .5s ease .25s both;
}
.btn-quiz:hover{ border-color:var(--accent); color:var(--accent-dark); }
@keyframes popIn{ from{ opacity:0; transform:scale(.85); } to{ opacity:1; transform:scale(1); } }
@keyframes fadeUp{ from{ opacity:0; transform:translateY(10px); } to{ opacity:1; transform:translateY(0); } }

.practice-section{
  margin-top:22px; width:100%; max-width:360px;
  display:flex; flex-direction:column; align-items:center; gap:10px;
  animation: fadeUp .5s ease .3s both;
}
.practice-label-row{ display:flex; align-items:center; justify-content:space-between; gap:8px; width:100%; }
.practice-label{ margin:0; font-size:13px; font-weight:600; color:var(--text); }
.practice-count{
  flex-shrink:0; font-family:var(--font-display); font-weight:400; font-size:12px; color:var(--text-muted);
}
.continent-list{
  display:grid; grid-template-columns: repeat(auto-fit, minmax(64px, 1fr));
  gap:10px; width:100%;
}
.continent-row{
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:6px;
  aspect-ratio: 1 / 1; padding:8px 6px;
  border-radius:var(--radius-md);
  background:var(--surface); border:1.5px solid var(--border);
  font-family:var(--font-display); font-weight:600; font-size:13px; color:var(--text);
  text-align:center;
  transition: border-color .15s ease, transform .15s ease;
}
.continent-row:hover{ border-color:var(--accent); }
.continent-row:active{ transform:scale(0.96); }
.continent-name{
  font-size:10px; max-width:100%;
  overflow:hidden; text-overflow:ellipsis; white-space:nowrap;
}
.continent-code{
  font-family:var(--font-body); font-weight:700; font-size:15px; letter-spacing:.02em;
  color:var(--accent-dark);
}

.menu-footer{
  position:relative; z-index:1; flex-shrink:0;
  text-align:center; margin:0; padding-top:14px;
  font-size:12px; color:var(--text-muted);
  animation: fadeUp .5s ease .4s both;
}

/* ===================== JUEGO ===================== */
.game-layout{ flex:1; display:flex; flex-direction:column; max-width:480px; width:100%; margin:0 auto; min-height:0; }

.game-main{ flex:1; display:flex; flex-direction:column; justify-content:center; min-height:0; }

.game-hud{ display:flex; align-items:center; justify-content:space-between; gap:8px; margin-bottom:18px; flex-shrink:0; }
.hud-actions{ display:flex; gap:8px; flex-shrink:0; }
.hud-actions .icon-btn{ width:36px; height:36px; min-height:36px; font-size:15px; }
.hud-badge{
  height:36px; display:flex; align-items:center; justify-content:center;
  font-family:var(--font-display); font-weight:700; font-size:13px;
  padding:0 14px; border-radius:var(--radius-pill);
  background:var(--surface); color:var(--text);
}
.hud-badge-text{ padding-top:9px; }
.hud-badge--muted{ color:var(--text-muted); font-weight:600; }
.timer{ font-size:15px; color:var(--accent-dark); }
.timer.low{ color:#fff; background:var(--danger); animation: pulse 1s ease-in-out infinite; }
@keyframes pulse{ 0%,100%{ transform:scale(1); } 50%{ transform:scale(1.08); } }

.flag-stage{ display:flex; justify-content:center; margin: 4px 0 36px; }
.flag-stage .slot{ width:min(320px, 78vw); }

.guess-form{ display:flex; gap:0; }
.guess-input{
  flex:1; min-width:0; height:40px;
  font-size:16px; padding:2px 18px;
  border-radius:var(--radius-pill) 0 0 var(--radius-pill);
  border:1.5px solid var(--surface); border-right:none;
  background:var(--surface); color:var(--text);
}
.guess-input:focus{ outline:none; }
.btn-guess{ height:40px; min-height:40px; padding:2px 22px; gap:6px; font-size:15px; flex-shrink:0; border-radius:0 var(--radius-pill) var(--radius-pill) 0; }

.quiz-options{ display:grid; grid-template-columns:1fr 1fr; gap:10px; }
.quiz-option{
  display:flex; align-items:center; gap:10px;
  min-height:56px; padding:0 14px;
  border-radius:var(--radius-md);
  background:var(--surface); border:1.5px solid var(--border);
  font-family:var(--font-display); font-weight:600; font-size:14px; color:var(--text);
  text-align:left;
  transition: border-color .15s ease, background-color .15s ease, color .15s ease, transform .15s ease;
}
.quiz-option:active{ transform:scale(0.97); }
.quiz-option:disabled{ cursor:default; }
.quiz-option-key{
  flex-shrink:0; width:22px; height:22px; display:flex; align-items:center; justify-content:center;
  border-radius:50%; background:var(--surface-muted); color:var(--text-muted);
  font-size:12px; font-weight:700;
}
.quiz-option-label{ flex:1; min-width:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.quiz-option.is-correct{ background:var(--success-soft); border-color:var(--success); color:var(--success); }
.quiz-option.is-correct .quiz-option-key{ background:var(--success); color:#fff; }
.quiz-option.is-wrong{ background:var(--danger-soft); border-color:var(--danger); color:var(--danger); }
.quiz-option.is-wrong .quiz-option-key{ background:var(--danger); color:#fff; }

.feedback{
  text-align:center; margin: 14px auto 0;
  font-family:var(--font-display); font-weight:600; font-size:14px;
  line-height:1.2; min-height:calc(1.2em + 16px);
  padding:8px 18px; border-radius:var(--radius-pill);
  box-sizing:border-box;
}
.feedback.correct, .feedback.wrong{
  width:fit-content;
  animation: feedbackPop .25s cubic-bezier(.34,1.56,.64,1) both;
}
.feedback.correct{ color:var(--success); background:var(--success-soft); }
.feedback.wrong{ color:var(--danger); background:var(--danger-soft); }
@keyframes feedbackPop{ from{ opacity:0; transform:scale(.85); } to{ opacity:1; transform:scale(1); } }

.btn-reveal{
  display:flex; gap:6px; margin:0 auto 14px; padding:9px 18px; font-size:13px; min-height:38px;
  background:transparent; color:var(--text-muted);
}
.btn-reveal:hover{ border-color:var(--accent); color:var(--accent-dark); }

/* ===================== FIN DE PARTIDA ===================== */
.end-topbar{ display:flex; justify-content:flex-end; flex-shrink:0; }
.end-topbar .icon-btn{ width:36px; height:36px; min-height:36px; font-size:15px; }
.result-box{
  flex:1; display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap:16px; text-align:center; max-width:420px; width:100%; margin:0 auto;
}
.result-title{ font-family:var(--font-display); font-size: clamp(22px, 6vw, 28px); margin:0; }
.result-body{ margin:0; color:var(--text-muted); font-size:15px; }

.flag-reveal{ display:flex; flex-direction:column; align-items:center; gap:8px; }
.flag-reveal .slot{ width:180px; }
.flag-reveal-name{ margin:0; font-family:var(--font-display); font-weight:700; font-size:15px; color:var(--accent-dark); }

.stat-row{ display:flex; gap:10px; width:100%; margin-bottom:18px; }
.stat-chip{
  flex:1; background:var(--surface); border-radius:var(--radius-md);
  padding:12px 10px; display:flex; flex-direction:column; gap:4px;
}
.stat-chip-label{ font-size:12px; color:var(--text-muted); }
.stat-chip-value{ font-family:var(--font-display); font-weight:700; font-size:18px; }

.end-actions{ display:flex; flex-wrap:wrap; gap:10px; justify-content:center; margin-top:4px; }

/* ===================== RANKING ===================== */
.ranking-header{
  display:grid; grid-template-columns: auto 1fr auto; align-items:center;
  margin-bottom:18px;
}
.ranking-header h2{ font-family:var(--font-display); margin:0 0 0 74px; font-size:22px; text-align:center; }
.ranking-empty{ color:var(--text-muted); text-align:center; margin-top:40px; }

/* Pestañas Jugar / Modo Quiz */
.ranking-tabs{
  position:relative; display:flex; align-self:center; width:fit-content; margin:0 auto 24px;
  padding:4px; border-radius:var(--radius-pill); background:var(--surface-muted);
}
.ranking-tabs-thumb{
  position:absolute; top:4px; left:4px; bottom:4px;
  width:calc(50% - 4px); border-radius:var(--radius-pill);
  background:var(--accent); transition:transform .25s cubic-bezier(.4,0,.2,1);
}
.ranking-tabs.is-quiz .ranking-tabs-thumb{ transform:translateX(100%); }
.ranking-tab{
  position:relative; z-index:1; padding:10px 20px 10px 34px;
  font-family:var(--font-display); font-weight:700; font-size:14px;
  color:var(--text-muted); border-radius:var(--radius-pill);
  transition:color .2s ease;
}
.ranking-tab.is-active{ color:#fff; }

/* Podio top 3 */
.ranking-podium{ display:flex; align-items:flex-end; justify-content:center; gap:10px; margin-bottom:24px; margin-top:24px; }
.podium-card{
  position:relative; flex:1; max-width:150px; min-width:0;
  display:flex; flex-direction:column; align-items:center; gap:6px;
  background:var(--surface); border:1.5px solid var(--border); border-radius:var(--radius-lg);
  padding:36px 10px 16px; text-align:center;
}
.podium-card--leader{ border-color:var(--accent); transform:translateY(-14px); z-index:1; padding-top:44px; }
.podium-rank-badge{
  position:absolute; top:10px; left:10px;
  width:22px; height:22px; border-radius:50%;
  background:var(--surface-muted); color:var(--text-muted);
  font-family:var(--font-display); font-weight:700; font-size:11px;
  display:flex; align-items:center; justify-content:center;
}
.podium-leader-badge{
  position:absolute; top:-14px; left:50%; transform:translateX(-50%);
  display:flex; align-items:center; gap:4px; white-space:nowrap;
  background:var(--accent); color:#fff;
  font-family:var(--font-display); font-weight:700; font-size:10px;
  letter-spacing:.04em; text-transform:uppercase;
  padding:5px 12px; border-radius:var(--radius-pill);
}
.podium-avatar{
  width:48px; height:48px; border-radius:50%; flex-shrink:0;
  display:flex; align-items:center; justify-content:center;
  font-family:var(--font-display); font-weight:700; font-size:17px;
  background:var(--surface-muted); color:var(--text-muted);
}
.podium-card--leader .podium-avatar{ width:60px; height:60px; font-size:21px; background:var(--accent-soft); color:var(--accent); }
.podium-name{
  font-family:var(--font-display); font-weight:700; font-size:13px; color:var(--text);
  overflow:hidden; text-overflow:ellipsis; white-space:nowrap; max-width:100%;
}
.podium-score{ font-family:var(--font-display); font-weight:800; font-size:20px; color:var(--text); }
.podium-card--leader .podium-score{ font-size:26px; }
.podium-score small{ font-size:12px; font-weight:600; color:var(--text-muted); }
.podium-time{
  display:flex; align-items:center; gap:4px;
  background:var(--surface-muted); color:var(--text-muted);
  font-family:var(--font-display); font-weight:600; font-size:11px;
  padding:4px 10px; border-radius:var(--radius-pill);
}
.podium-card--leader .podium-time{ background:var(--accent-soft); color:var(--accent-dark); }
.podium-leader-badge .btn-icon, .podium-time .btn-icon{ width:12px; height:12px; }

/* Cabecera de columnas de la lista (rangos 4+) */
.rank-list-header{
  display:grid; grid-template-columns: 32px 1fr auto auto; gap:10px;
  padding:0 14px 4px; max-width:480px; width:100%; margin:0 auto;
  font-family:var(--font-display); font-weight:700; font-size:11px;
  letter-spacing:.04em; text-transform:uppercase; color:var(--text-muted);
}
.rank-list-header span:nth-child(3), .rank-list-header span:nth-child(4){ text-align:right; }

.rank-list{ display:flex; flex-direction:column; gap:8px; max-width:480px; width:100%; margin:0 auto; }
.rank-row{
  display:grid; grid-template-columns: 32px 1fr auto auto; align-items:center; gap:10px;
  background:var(--surface); border-radius:var(--radius-md);
  padding:10px 14px; font-size:14px;
}
.rank-row--top1, .rank-row--top2, .rank-row--top3{ border:1.5px solid var(--accent-soft); }
.rank-row.is-me{ background:var(--accent-soft); border:1.5px solid var(--accent); }
.rank-row.is-me .rank-avatar{ background:var(--accent); color:#fff; }
.rank-pos{ font-family:var(--font-display); font-weight:700; color:var(--text-muted); text-align:center; }
.rank-player{ display:flex; align-items:center; gap:8px; min-width:0; overflow:hidden; }
.rank-avatar{
  flex-shrink:0; width:28px; height:28px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-family:var(--font-display); font-weight:700; font-size:12px;
  background:var(--surface-muted); color:var(--text-muted);
}
.rank-name{ min-width:0; font-weight:600; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.rank-you-badge{
  flex-shrink:0; font-family:var(--font-display); font-weight:700; font-size:10px;
  color:#fff; background:var(--accent); padding:3px 8px; border-radius:var(--radius-pill);
}
.rank-flags{ color:var(--text-muted); font-size:13px; white-space:nowrap; text-align:right; }
.rank-flags strong{ color:var(--text); font-weight:700; }
.rank-time{ font-family:var(--font-display); font-weight:600; font-size:13px; white-space:nowrap; text-align:right; }

/* ===================== RESPONSIVE ===================== */
@media (min-width: 640px){
  .screen{ padding: calc(28px + var(--safe-top)) 28px calc(28px + var(--safe-bottom)); }
  .flag-stage .slot{ width:360px; }
  .rank-row{ font-size:15px; padding:12px 18px; }
}

@media (prefers-reduced-motion: reduce){
  .screen.active, .site-title, .menu-kicker, .btn-play, .btn-quiz, .feedback.correct, .feedback.wrong{ animation:none !important; }
  .timer.low{ animation:none !important; }
}