/* =========================================================
     PAC v180 · Duelos (interfaz + base Firebase configurable)
     - Divide CÓMO JUGAR en dos botones y añade ⚔️ DUELOS.
     - Añade Duelos, Crear duelo, Invitación, En curso y Resultados.
     - No toca Firebase, partidas, clasificaciones, logros ni retos.
     ========================================================= */

  #home .home-split-row {
    width: min(430px, calc(100vw - 52px));
    max-width: 100%;
    display: flex;
    align-items: stretch;
    justify-content: center;
    gap: 10px;
    margin: 0 auto;
    box-sizing: border-box;
  }

  #home .home-buttons .home-split-row .home-half-button {
    width: calc((100% - 10px) / 2) !important;
    max-width: none !important;
    min-width: 0;
    min-height: 58px;
    margin: 0 !important;
    padding: 0 10px;
    gap: 8px;
    font-size: clamp(12px, 3.25vw, 16px);
    letter-spacing: 0;
    white-space: nowrap;
  }

  #home .home-split-row .home-svg-icon {
    width: 27px;
    height: 27px;
    flex-basis: 27px;
  }

  #home .duel-swords-home {
    width: 29px;
    height: 29px;
    flex: 0 0 29px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.55rem;
    line-height: 1;
    filter: drop-shadow(0 2px 2px rgba(0,0,0,0.18));
  }

  #duels,
  #duelCreate,
  #duelInvitation,
  #duelDetail,
  #duelResults {
    width: 100%;
    max-width: 500px;
    height: 100%;
    min-height: 0;
    max-height: 100%;
    box-sizing: border-box;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior-y: contain;
    -webkit-overflow-scrolling: touch;
    padding:
      calc(18px + env(safe-area-inset-top))
      14px
      calc(26px + env(safe-area-inset-bottom));
    justify-content: flex-start;
    background: transparent;
    color: var(--pac-text);
  }

  #duels > *,
  #duelCreate > *,
  #duelInvitation > *,
  #duelDetail > *,
  #duelResults > * {
    flex: 0 0 auto;
  }

  #duels h2,
  #duelCreate h2,
  #duelInvitation h2,
  #duelDetail h2,
  #duelResults h2 {
    width: fit-content;
    max-width: calc(100vw - 40px);
    margin: 8px auto 16px;
    padding: 8px 20px;
    box-sizing: border-box;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.54);
    color: var(--pac-navy);
    border: 1px solid var(--pac-border);
    box-shadow: var(--pac-shadow-soft);
    font-family: Impact, "Arial Black", system-ui, sans-serif;
    font-size: clamp(1.65rem, 6vw, 2.15rem);
    font-weight: 950;
    line-height: 1;
    letter-spacing: 1px;
    text-transform: uppercase;
  }

  .duel-intro,
  .duel-form-card,
  .duel-detail-card,
  .duel-results-list,
  .duel-results-hero {
    width: min(430px, 100%);
    box-sizing: border-box;
    margin-left: auto;
    margin-right: auto;
  }

  .duel-intro {
    margin-bottom: 14px;
    padding: 13px 14px;
    border-radius: 16px;
    background: rgba(255,255,255,0.52);
    border: 1px solid var(--pac-border);
    box-shadow: var(--pac-shadow-soft);
    color: var(--pac-muted);
    font-size: 0.91rem;
    line-height: 1.4;
    text-align: left;
  }

  .duel-intro strong {
    display: block;
    margin-top: 12px;
    color: var(--pac-navy);
    font-weight: 900;
  }

  .duel-primary-action,
  .duel-secondary-action,
  .duel-inline-action,
  .duel-back-btn {
    width: min(430px, 100%);
    height: auto;
    min-height: 48px;
    margin: 0 auto;
    border-radius: 16px;
    font-size: 1rem;
    font-weight: 950;
  }

  .duel-secondary-action,
  .duel-inline-action {
    min-height: 42px;
    margin-top: 10px;
    font-size: 0.9rem;
  }

  .duel-inline-action {
    width: auto;
    min-width: 180px;
    border-radius: 999px;
  }

  .duel-back-btn {
    width: min(240px, 76vw);
    min-height: 44px;
    margin-top: 18px;
    border-radius: 999px;
  }

  .duel-section-title {
    width: min(430px, 100%);
    margin: 19px auto 9px;
    color: var(--pac-navy);
    text-align: left;
    font-size: 1.02rem;
    font-weight: 950;
    letter-spacing: 0.8px;
  }

  .duel-list {
    width: min(430px, 100%);
    margin: 0 auto;
  }

  .duel-card {
    position: relative;
    width: 100%;
    box-sizing: border-box;
    margin: 0 0 11px;
    padding: 13px 13px 12px;
    border-radius: 18px;
    background: rgba(255,255,255,0.60);
    border: 1px solid var(--pac-border);
    border-left: 5px solid var(--pac-green);
    box-shadow: var(--pac-shadow-soft);
    text-align: left;
  }

  .duel-card-invite { border-left-color: var(--pac-gold); }
  .duel-card-finished { border-left-color: var(--pac-navy); }
  .duel-card-history-removable { padding-left: 57px; }
  .duel-history-trash {
    position: absolute;
    left: 9px;
    top: 50%;
    width: 38px;
    min-width: 38px;
    height: 42px;
    margin: 0;
    padding: 0;
    transform: translateY(-50%);
    border: 1px solid #d69a94;
    border-radius: 12px;
    background: #fff3f2;
    color: #b72f27;
    box-shadow: none;
    font-size: 1.05rem;
  }
  .duel-history-trash:active { transform: translateY(-50%); }

  .duel-card-topline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 8px;
  }

  .duel-status-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 4px 9px;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 950;
    letter-spacing: 0.45px;
  }

  .duel-status-pill.active {
    background: var(--pac-green-soft);
    color: var(--pac-green-dark);
  }

  .duel-status-pill.invite {
    background: rgba(214, 162, 70, 0.16);
    color: var(--pac-gold-dark);
  }

  .duel-status-pill.finished {
    background: rgba(5,59,92,0.10);
    color: var(--pac-navy);
  }

  .duel-time-left {
    color: var(--pac-muted);
    font-size: 0.79rem;
    font-weight: 800;
    text-align: right;
  }

  .duel-card-name {
    color: var(--pac-navy);
    font-size: 1.12rem;
    font-weight: 950;
    line-height: 1.2;
    overflow-wrap: anywhere;
  }

  .duel-card-meta,
  .duel-card-status {
    margin-top: 5px;
    color: var(--pac-muted);
    font-size: 0.87rem;
    line-height: 1.3;
  }

  .duel-card-meta strong,
  .duel-card-status strong {
    color: var(--pac-navy);
  }

  .duel-card-actions,
  .duel-wide-actions {
    display: flex;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 11px;
  }

  .duel-card-actions button,
  .duel-wide-actions button {
    width: auto;
    min-width: 104px;
    height: 39px;
    margin: 0;
    padding: 6px 13px;
    border-radius: 999px;
    font-size: 0.84rem;
  }

  .duel-wide-actions {
    justify-content: center;
    margin-top: 16px;
  }

  .duel-wide-actions button {
    flex: 1 1 140px;
    max-width: 200px;
    min-height: 44px;
    height: auto;
  }

  .duel-prototype-note {
    width: min(430px, 100%);
    margin: 8px auto 0;
    color: var(--pac-muted);
    font-size: 0.79rem;
    line-height: 1.3;
    text-align: center;
  }

  .duel-form-card,
  .duel-detail-card {
    padding: 16px 15px;
    border-radius: 20px;
    background: rgba(255,255,255,0.58);
    border: 1px solid var(--pac-border);
    box-shadow: var(--pac-shadow-soft);
  }

  .duel-field-label {
    display: block;
    color: var(--pac-navy);
    font-size: 0.98rem;
    font-weight: 950;
    line-height: 1.2;
    text-align: left;
  }

  .duel-field-help {
    margin-top: 5px;
    color: var(--pac-muted);
    font-size: 0.79rem;
    line-height: 1.28;
    text-align: left;
  }

  .duel-text-input,
  .duel-select,
  .duel-number-input {
    width: 100%;
    height: 48px;
    box-sizing: border-box;
    margin-top: 8px;
    padding: 8px 12px;
    border-radius: 13px;
    border: 1px solid var(--pac-border);
    background: rgba(255,255,255,0.92);
    color: var(--pac-navy);
    box-shadow: 0 3px 8px rgba(5,59,92,0.08);
    font: inherit;
    font-weight: 800;
    outline: none;
  }

  .duel-text-input:focus,
  .duel-select:focus,
  .duel-number-input:focus {
    border-color: rgba(11,143,82,0.48);
    box-shadow: 0 0 0 3px rgba(11,143,82,0.11);
  }

  .duel-form-section {
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid rgba(5,59,92,0.11);
  }

  .duel-player-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-top: 10px;
  }

  .duel-player-chip {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    max-width: 100%;
    padding: 6px 9px;
    border-radius: 999px;
    background: rgba(5,59,92,0.08);
    color: var(--pac-navy);
    font-size: 0.78rem;
    font-weight: 900;
  }

  .duel-player-chip.creator-chip {
    background: var(--pac-green-soft);
    color: var(--pac-green-dark);
  }

  .duel-player-chip button {
    width: 19px;
    min-width: 19px;
    height: 19px;
    margin: 0;
    padding: 0;
    border-radius: 50%;
    background: rgba(5,59,92,0.12);
    color: var(--pac-navy);
    box-shadow: none;
    font-size: 0.9rem;
    line-height: 1;
  }

  .duel-toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
  }

  .duel-switch {
    position: relative;
    width: 52px;
    height: 30px;
    flex: 0 0 52px;
  }

  .duel-switch input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
  }

  .duel-switch span {
    position: absolute;
    inset: 0;
    border-radius: 999px;
    background: #aebbbf;
    cursor: pointer;
    transition: 0.2s ease;
  }

  .duel-switch span::after {
    content: "";
    position: absolute;
    width: 24px;
    height: 24px;
    left: 3px;
    top: 3px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 2px 5px rgba(2,43,69,0.24);
    transition: 0.2s ease;
  }

  .duel-switch input:checked + span {
    background: var(--pac-green);
  }

  .duel-switch input:checked + span::after {
    transform: translateX(22px);
  }

  .duel-duration-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-top: 9px;
  }

  .duel-duration-row label span {
    display: block;
    color: var(--pac-muted);
    font-size: 0.76rem;
    font-weight: 850;
    text-align: left;
  }

  .duel-duration-row .duel-number-input {
    margin-top: 5px;
    text-align: center;
    font-size: 1.05rem;
  }

  .duel-game-settings-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-top: 10px;
  }

  .duel-setting-field {
    min-width: 0;
  }

  .duel-setting-field-wide {
    grid-column: 1 / -1;
  }

  .duel-setting-field > span {
    display: block;
    color: var(--pac-muted);
    font-size: 0.76rem;
    font-weight: 850;
    line-height: 1.2;
    text-align: left;
  }

  .duel-setting-field .duel-select {
    margin-top: 5px;
  }

  .duel-seconds-control {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 9px;
    margin-top: 5px;
  }

  .duel-seconds-control .duel-number-input {
    margin-top: 0;
    text-align: center;
    font-size: 1.05rem;
  }

  .duel-seconds-unit {
    color: var(--pac-navy);
    font-size: 0.9rem;
    font-weight: 900;
    white-space: nowrap;
  }

  .duel-settings-summary {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 7px;
    margin-top: 12px;
  }

  .duel-settings-summary > div {
    min-width: 0;
    padding: 9px 5px;
    border-radius: 12px;
    background: rgba(11,143,82,0.07);
    border: 1px solid rgba(11,143,82,0.12);
    text-align: center;
  }

  .duel-settings-summary span {
    display: block;
    color: var(--pac-muted);
    font-size: 0.64rem;
    line-height: 1.18;
  }

  .duel-settings-summary strong {
    display: block;
    margin-top: 4px;
    color: var(--pac-navy);
    font-size: 0.82rem;
    line-height: 1.15;
    overflow-wrap: anywhere;
  }


  .duel-deadline-preview {
    margin-top: 10px;
    padding: 9px 11px;
    border-radius: 12px;
    background: rgba(11,143,82,0.08);
    color: var(--pac-green-dark);
    font-size: 0.84rem;
    font-weight: 850;
    line-height: 1.3;
    text-align: center;
  }

  .duel-critical-rule {
    margin-top: 16px;
    padding: 11px 12px;
    border-radius: 13px;
    background: var(--pac-danger-soft);
    color: var(--pac-text);
    border-left: 4px solid var(--pac-danger);
    font-size: 0.86rem;
    line-height: 1.35;
    text-align: left;
  }

  .duel-rules-summary {
    margin-top: 12px;
    color: var(--pac-muted);
    font-size: 0.82rem;
    line-height: 1.36;
    text-align: left;
  }

  .duel-form-error {
    min-height: 20px;
    margin: 10px 0 0;
    color: var(--pac-danger);
    font-size: 0.84rem;
    font-weight: 850;
    text-align: center;
  }

  #confirmCreateDuelBtn {
    margin-top: 8px;
  }

  .duel-invitation-hero {
    margin: 0 auto 8px;
    font-size: 3.4rem;
    line-height: 1;
    filter: drop-shadow(0 5px 8px rgba(5,59,92,0.18));
  }

  .duel-detail-kicker {
    color: var(--pac-green-dark);
    font-size: 0.76rem;
    font-weight: 950;
    letter-spacing: 0.8px;
    text-align: center;
  }

  .duel-detail-name {
    margin-top: 6px;
    color: var(--pac-navy);
    font-size: 1.42rem;
    font-weight: 950;
    line-height: 1.16;
    text-align: center;
    overflow-wrap: anywhere;
  }

  .duel-detail-meta {
    text-align: center;
  }

  .duel-detail-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    margin-top: 16px;
  }

  .duel-detail-grid > div {
    min-width: 0;
    padding: 10px 8px;
    border-radius: 13px;
    background: rgba(255,255,255,0.64);
    border: 1px solid rgba(5,59,92,0.10);
    text-align: center;
  }

  .duel-detail-grid span {
    display: block;
    color: var(--pac-muted);
    font-size: 0.7rem;
    line-height: 1.2;
  }

  .duel-detail-grid strong {
    display: block;
    margin-top: 4px;
    color: var(--pac-navy);
    font-size: 1rem;
  }

  .duel-detail-text,
  .duel-detail-footnote,
  .duel-suspense-note {
    margin: 14px 0 0;
    color: var(--pac-muted);
    font-size: 0.85rem;
    line-height: 1.38;
    text-align: center;
  }

  .duel-detail-footnote {
    width: min(430px, 100%);
    margin-left: auto;
    margin-right: auto;
  }

  .duel-countdown-box {
    margin-top: 14px;
    padding: 12px;
    border-radius: 16px;
    background: linear-gradient(180deg, var(--pac-navy) 0%, var(--pac-navy-dark) 100%);
    color: var(--pac-white);
    text-align: center;
    box-shadow: var(--pac-shadow-soft);
  }

  .duel-countdown-box span {
    display: block;
    font-size: 0.68rem;
    font-weight: 900;
    letter-spacing: 0.8px;
    opacity: 0.82;
  }

  .duel-countdown-box strong {
    display: block;
    margin-top: 4px;
    font-size: 1.35rem;
    font-weight: 950;
  }

  .duel-participant-list {
    margin-top: 15px;
    overflow: hidden;
    border-radius: 14px;
    border: 1px solid rgba(5,59,92,0.10);
  }

  .duel-participant-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 11px;
    background: rgba(255,255,255,0.58);
    border-bottom: 1px solid rgba(5,59,92,0.08);
    color: var(--pac-navy);
    font-size: 0.86rem;
    font-weight: 850;
  }

  .duel-participant-row:last-child { border-bottom: 0; }
  .duel-participant-row small { color: var(--pac-muted); font-weight: 700; }
  .duel-participant-row strong { font-size: 0.7rem; letter-spacing: 0.35px; }
  .duel-participant-row strong.done { color: var(--pac-green-dark); }
  .duel-participant-row strong.pending { color: var(--pac-gold-dark); }

  .duel-suspense-note {
    padding: 9px 10px;
    border-radius: 12px;
    background: rgba(214,162,70,0.10);
    color: var(--pac-gold-dark);
    font-weight: 850;
  }

  .duel-results-hero {
    padding: 17px 14px;
    border-radius: 20px;
    background: linear-gradient(180deg, rgba(11,143,82,0.13), rgba(255,255,255,0.58));
    border: 1px solid rgba(11,143,82,0.20);
    box-shadow: var(--pac-shadow-soft);
    text-align: center;
  }

  .duel-results-swords {
    font-size: 2.8rem;
    line-height: 1;
  }

  .duel-results-name {
    margin-top: 6px;
    color: var(--pac-navy);
    font-size: 1.2rem;
    font-weight: 950;
  }

  .duel-results-winner {
    margin-top: 6px;
    color: var(--pac-green-dark);
    font-size: 0.84rem;
    font-weight: 950;
    letter-spacing: 0.55px;
  }

  .duel-results-list {
    margin-top: 13px;
    overflow: hidden;
    border-radius: 17px;
    border: 1px solid var(--pac-border);
    box-shadow: var(--pac-shadow-soft);
  }

  .duel-result-row {
    display: grid;
    grid-template-columns: 38px minmax(0, 1fr) auto;
    align-items: center;
    gap: 8px;
    padding: 11px 12px;
    background: rgba(255,255,255,0.62);
    border-bottom: 1px solid rgba(5,59,92,0.08);
  }

  .duel-result-row:last-child { border-bottom: 0; }
  .duel-result-row.winner { background: rgba(214,162,70,0.14); }
  .duel-result-row.me { background: var(--pac-green-soft); }
  .duel-result-row.no-play { opacity: 0.76; }
  .duel-result-position { text-align: center; font-size: 1.25rem; }
  .duel-result-player { min-width: 0; color: var(--pac-navy); font-size: 0.9rem; font-weight: 900; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .duel-result-player small { color: var(--pac-muted); font-weight: 700; }
  .duel-result-row strong { color: var(--pac-navy); font-size: 0.92rem; text-align: right; }
  .duel-result-row.no-play strong { font-size: 0.7rem; color: var(--pac-muted); }

  @media screen and (max-width: 370px) {
    #home .home-split-row {
      gap: 7px;
    }

    #home .home-buttons .home-split-row .home-half-button {
      width: calc((100% - 7px) / 2) !important;
      padding: 0 7px;
      gap: 5px;
      font-size: 11.5px;
    }

    #home .home-split-row .home-svg-icon {
      width: 23px;
      height: 23px;
      flex-basis: 23px;
    }

    #home .duel-swords-home {
      width: 25px;
      height: 25px;
      flex-basis: 25px;
      font-size: 1.3rem;
    }

    .duel-card-actions {
      justify-content: stretch;
    }

    .duel-card-actions button {
      flex: 1 1 0;
      min-width: 0;
    }
  }

  html.pac-compact-height #home .home-buttons .home-split-row .home-half-button {
    min-height: 48px;
  }

  html.pac-ultra-compact-height #home .home-buttons .home-split-row .home-half-button {
    min-height: 42px;
    font-size: 11.5px;
  }