/* CSS Variables for Theme Support */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #e9ecef;
    --bg-tertiary: #e9f1f9;
    --bg-container: #f0f8ff;
    --bg-card: #ffffff;
    --text-primary: #2c3e50;
    --text-secondary: #333;
    --border-color: #ddd;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 3px 8px rgba(0,0,0,0.1);
    --shadow-lg: 0 4px 15px rgba(0,0,0,0.2);
    --btn-primary: #0e324b;
    --btn-primary-hover: #081b27;
    --btn-secondary: #FF9800;
    --btn-secondary-hover: #F57C00;
    --numero-bg: #05102e;
    --numero-marcado: #af1000;
    --ultimo-numero: #8d1307;
    --bingo-success: #2ecc71;
    --border-primary: #a51818;
}

body.night-mode {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-tertiary: #0f3460;
    --bg-container: #162447;
    --bg-card: #1f4068;
    --text-primary: #e8e8e8;
    --text-secondary: #c7c7c7;
    --border-color: #2d4059;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.4);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.5);
    --shadow-lg: 0 6px 20px rgba(0,0,0,0.6);
    --btn-primary: #1e3a5f;
    --btn-primary-hover: #2a5a8f;
    --btn-secondary: #ff6b35;
    --btn-secondary-hover: #ff8c42;
    --numero-bg: #1e3a5f;
    --numero-marcado: #e74c3c;
    --ultimo-numero: #c0392b;
    --bingo-success: #27ae60;
    --border-primary: #e74c3c;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%) !important;
}

[hidden] {
    display: none !important;
}

/* Smooth transitions for theme changes */
body, #numeroContainer, #numerosContainer, #ultimosNumerosContainer,
#myCardsTrackerContainer, #verificarNumeroContainer, #verificarCartonContainer,
.numeroCirculo, button, input, select {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

/* Top bar */
.topbar {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 5px 10px;
    box-sizing: border-box;
    background: color-mix(in srgb, var(--bg-tertiary) 85%, transparent);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.brand-badge {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    padding: 6px 12px;
    border-radius: 999px;
    box-shadow: var(--shadow-sm);
    line-height: 0;
}

.brand-badge img {
    display: block;
}

.icon-btn {
    min-width: auto;
    padding: 4px 10px;
    border-radius: 999px;
    border: 1px solid var(--border-primary);
    background: var(--btn-primary);
    color: #fff;
    box-shadow: var(--shadow-sm);
    font-size: clamp(0.75rem, 2vw, 1rem);
}

.center {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center; /* center vertically when used (e.g. <main class="center">) */
    text-align: center;
    width: 100%;
    max-width: 1100px;
    margin: 20px auto;
    padding: 8px;
    box-sizing: border-box;
}

.btn-secondary {
    background: linear-gradient(135deg, var(--btn-primary) 0%, var(--btn-primary-hover) 100%);
    border: 2px solid var(--border-primary);
}

/* Distinct style for the main start button */
#startStopBtn {
    background: linear-gradient(135deg, #2a9d8f 0%, #21867a 100%);
    border: 2px solid #176b5e;
    color: #ffffff;
    padding: 10px 18px;
    border-radius: 8px;
    font-weight: 700;
    box-shadow: 0 3px 8px rgba(0,0,0,0.18);
}

#startStopBtn:hover,
#startStopBtn:focus {
    background: linear-gradient(135deg, #21867a 0%, #176b5e 100%);
    transform: translateY(-1px);
    outline: none;
}

/* Generic container style for control panels - ensured same length on PC */
.control-box {
    margin: 20px auto;
    padding: 15px;
    background-color: var(--bg-tertiary);
    border-radius: 12px;
    width: 100%;
    max-width: 480px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    box-sizing: border-box;
    display: block; /* Default to block, specific ones can override to flex */
}

/* Saved cards grid + mini board */
.saved-cards-grid {
    margin-top: 20px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
}

.saved-card {
    width: 242px;
    background-color: var(--bg-card);
    padding: 13px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.saved-card-title {
    display: block;
    margin-bottom: 10px;
    font-weight: 700;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-align: center;
    font-size: 1.1em;
}

.mini-board {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 5px;
    text-align: center;
    padding: 9px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
}

.mini-cell {
    padding: 7px 0;
    border: 1px solid var(--border-color);
    font-size: 1.2rem;
    font-weight: bold;
    border-radius: 6px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.mini-cell.marcado {
    background-color: var(--numero-marcado);
    color: white;
    border-color: var(--border-primary);
}

.page-spacer {
    height: 60px;
}

/* Removed seedDisplayContainer CSS as it is unused */
#myCardsTrackerContainer h3 {
    margin-top: 0;
    margin-bottom: 15px;
    color: var(--text-primary);
    text-align: center;
    font-size: 1.2em;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

#myCardsTrackerContainer label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    font-size: 0.9em;
    color: var(--text-secondary);
    text-align: center;
}

#myCardsTrackerContainer input[type="text"] {
    width: calc(100% - 22px);
    padding: 9px;
    margin-bottom: 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.95em;
    box-sizing: border-box;
    background-color: var(--bg-card);
    color: var(--text-primary);
}

body.night-mode #myCardsTrackerContainer input[type="text"] {
    background-color: #1f4068 !important;
    color: #e8e8e8 !important;
    border-color: #f39c12 !important;
}

body.night-mode #myCardsTrackerContainer input[type="text"]::placeholder {
    color: #95a5a6 !important;
    opacity: 0.8;
}

#myCardsTrackerContainer button {
    display: block;
    width: auto;
    margin: 10px auto 0 auto;
    padding: 9px 18px;
    background-color: var(--btn-secondary);
    color: white;
}
#myCardsTrackerContainer button:hover {
    background-color: var(--btn-secondary-hover);
}

#myCardsTrackerContainer h4 {
    margin-top: 15px;
    margin-bottom: 5px;
    color: var(--text-secondary);
    font-size: 1em;
    /* text-align: left; */
}

#myTrackedBingosList {
    padding: 10px;
    background-color: #fff9e6;
    border: 1px dashed #ffcc80;
    border-radius: 4px;
    min-height: 22px;
    text-align: left;
    font-size: 0.9em;
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    justify-content: center;
}

body.night-mode #myTrackedBingosList {
    background-color: #1f4068 !important;
    border-color: #f39c12 !important;
}

.mis-cartones-bingo-item {
    background-color: #FFB74D !important;
    color: #424242 !important;
    padding: 4px 8px;
    border-radius: 12px;
    font-weight: 500;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

/* Animations */
@keyframes pulseScale {
  0% { transform: scale(1); box-shadow: 0 0 0 rgba(0,0,0,0); }
  50% { transform: scale(1.06); box-shadow: 0 6px 18px rgba(0,0,0,0.12); }
 100% { transform: scale(1); box-shadow: 0 0 0 rgba(0,0,0,0); }
}

@keyframes glow {
  0% { box-shadow: 0 0 0 rgba(46,204,113,0); }
  50% { box-shadow: 0 8px 24px rgba(46,204,113,0.28); }
 100% { box-shadow: 0 0 0 rgba(46,204,113,0); }
}

.tracked-card-pill {
    transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
}
.tracked-card-pill:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 6px 18px rgba(0,0,0,0.12);
}

/* Animaciones de alerta para cartones por completar */
@keyframes blinkOrange {
    0% { background-color: var(--bg-secondary); box-shadow: 0 0 0px rgba(255, 165, 0, 0); }
    50% { background-color: #ffa500; box-shadow: 0 0 15px rgba(255, 165, 0, 0.6); color: white; }
    100% { background-color: var(--bg-secondary); box-shadow: 0 0 0px rgba(255, 165, 0, 0); }
}

@keyframes blinkRed {
    0% { background-color: var(--bg-secondary); box-shadow: 0 0 0px rgba(255, 0, 0, 0); }
    50% { background-color: #ff4d4d; box-shadow: 0 0 20px rgba(255, 0, 0, 0.8); color: white; }
    100% { background-color: var(--bg-secondary); box-shadow: 0 0 0px rgba(255, 0, 0, 0); }
}

.pill-alert-2 {
    animation: blinkOrange 1.5s infinite ease-in-out;
}

.pill-alert-1 {
    animation: blinkRed 0.8s infinite ease-in-out;
    border-color: #ff0000 !important;
}

.pulse-on-click {
    animation: pulseScale 700ms ease-in-out both;
}

.reveal-card {
    animation: revealFade 420ms cubic-bezier(.2,.9,.3,1) both;
}
@keyframes revealFade {
  0% { opacity: 0; transform: translateY(8px) scale(0.98); }
 60% { opacity: 1; transform: translateY(-4px) scale(1.02); }
100% { opacity: 1; transform: translateY(0) scale(1); }
}

.saved-card.highlight {
    animation: glow 1200ms ease-in-out 1;
    border-color: var(--bingo-success);
}

/* mini-cell bounce when marked */
.mini-cell.marcado {
    transform-origin: center;
    animation: markedBounce 600ms ease both;
}
@keyframes markedBounce {
  0% { transform: scale(1); }
  40% { transform: scale(1.08); }
  100% { transform: scale(1); }
}

body.night-mode .mis-cartones-bingo-item {
    background-color: #f39c12 !important;
    color: #000 !important;
    font-weight: 600;
    box-shadow: 0 2px 4px rgba(243,156,18,0.5);
}

#listaCartonesBingo {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 8px;
    padding: 10px;
    margin-top: 10px;
    min-height: 30px;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    background-color: #f9f9f9;
}

.carton-bingo {
    background-color: #2ecc71;
    color: white;
    padding: 8px 15px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 0.9em;
    text-align: center;
    box-shadow: 0 1px 3px rgba(0,0,0,0.12);
    margin: 0;
}

#listaCartonesBingo:empty {
    padding: 15px;
    text-align: center;
    color: #757575;
    font-style: italic;
}

.numeroVerificado {
    background-color: #e74c3c;
    font-size: 1.2em;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    color: white;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: 2px;
    font-weight: bold;
}

.numeroFaltante {
    background-color: #05102e;
    font-size: 1.2em;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    color: white;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: 2px;
    font-weight: bold;
}

body {
    font-family: Arial, sans-serif;
    text-align: center;
    margin: 0;
    padding: 60px 20px 20px;
    background: var(--bg-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    min-height: 100vh;
    box-sizing: border-box;
    overflow-x: hidden;
    color: var(--text-primary);
    /* DYNAMIC SCALING: Shrinks earlier for small screens to preserve layout */
    font-size: clamp(0.85rem, 0.6rem + 1.2vw, 1.2rem);
}

body.night-mode {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%) !important;
}

#numeroContainer {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    border: 5px solid var(--border-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 15px auto;
    background: var(--bg-card);
    box-shadow: var(--shadow-lg);
    position: relative;
}

#numeroContainer::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border-radius: 50%;
    background: linear-gradient(45deg, var(--border-primary), transparent);
    z-index: -1;
    opacity: 0.3;
    animation: rotate 3s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

#numero {
    font-size: clamp(3rem, 15vw, 6rem);
    font-weight: bold;
    color: var(--text-primary);
    text-shadow: var(--shadow-md);
}

#historial {
    margin-top: 10px;
    font-size: 1.2em;
    color: var(--text-primary);
}

#numerosContainer, #ultimosNumerosContainer {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: clamp(4px, 1.2vw, 12px);
    width: 100%;
    max-width: 1100px;
    margin: 10px auto;
    padding: clamp(8px, 2vw, 20px);
    background-color: var(--bg-secondary);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    box-sizing: border-box;
    justify-items: center;
}

#ultimosNumerosContainer {
    margin-top: 10px;
    background-color: var(--bg-tertiary);
}

.numeroCirculo { /* Las 90 bolas del historial */
    width: clamp(20px, 6.5vw, 38px);  /* Shrinks further on small screens */
    height: clamp(20px, 6.5vw, 38px); 
    border-radius: 50%;
    background: linear-gradient(135deg, var(--numero-bg) 0%, rgba(5,16,46,0.8) 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: clamp(0.6rem, 2.2vw, 1.2rem); 
    font-weight: bold;
    cursor: default;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.numeroCirculo.marcado {
    background: linear-gradient(135deg, var(--numero-marcado) 0%, #c0392b 100%);
    transform: scale(1.1); /* Reduced from 1.15 to avoid overlap on small screens */
    box-shadow: 0 4px 12px rgba(175,16,0,0.6);
}

/* Web3 Unified Ball Sizes */
body[data-page="web3"] .numeroCirculo {
    width: 32px;
    height: 32px;
    font-size: 0.9rem;
}

body[data-page="web3"] .ultimoNumeroCirculo {
    width: 36px;
    height: 36px;
    font-size: 1.1rem;
}

/* MODIFIED .ultimoNumeroCirculo */
.ultimoNumeroCirculo { /* Las últimas 10 bolas */
    background: linear-gradient(135deg, var(--ultimo-numero) 0%, #8b0000 100%);
    font-size: clamp(0.9rem, 4vw, 1.8rem); /* Increased font size significantly */
    border: 2px solid #fff;
    width: clamp(23px, 8vw, 42px);  
    height: clamp(23px, 8vw, 42px); 
    box-shadow: 0 6px 15px rgba(141,19,7,0.6);
}

.pulse-once {
    animation: pulse 1s ease-in-out 1;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* Highlight when a number is newly marked */
.numeroCirculo.highlight {
    animation: pop 0.7s cubic-bezier(.2,.8,.2,1) 1;
}

@keyframes pop {
    0% { transform: scale(1); filter: brightness(1); }
    40% { transform: scale(1.18); filter: brightness(1.25); }
    100% { transform: scale(1.05); filter: brightness(1); }
}

/* Fade-in for recreated grid */
.recreated {
    animation: fadeInGrid 0.6s ease-out 1;
}

@keyframes fadeInGrid {
    0% { opacity: 0; transform: translateY(6px); }
    100% { opacity: 1; transform: translateY(0); }
}

button {
    padding: 10px 20px;
    font-size: 1em;
    margin-top: 10px;
    cursor: pointer;
    background: linear-gradient(135deg, var(--btn-primary) 0%, var(--btn-primary-hover) 100%);
    color: white;
    border: none;
    border-radius: 8px;
    min-width: 150px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
    font-weight: 500;
}

button:hover {
    background: linear-gradient(135deg, var(--btn-primary-hover) 0%, var(--btn-primary) 100%);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

#botonesContainer {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 20px;
    flex-wrap: wrap;
}

/* Speed control - menu + button layout */
#speedControl {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.speed-control-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 90%;
    max-width: 400px;
    margin-bottom: 10px;
    gap: 12px;
}

#speedControl label {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 0;
}

.speed-plus-btn {
    width: 42px;
    height: 42px;
    border-radius: 14px;
    font-size: 1.1rem;
    line-height: 1;
    flex: 0 0 auto;
}

#speedControl label strong {
    font-size: 0.95em;
    min-width: 3.2ch;
    text-align: right;
}

#speedPresetSelect {
    width: 90%; /* Match label width */
    max-width: 400px;
    min-height: 44px;
    padding: 10px 14px;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-primary);
    cursor: pointer;
    box-shadow: var(--shadow-sm);
}

#speedPresetSelect:focus {
    outline: none;
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--btn-secondary) 12%, transparent);
}

@media (max-width: 420px) {
    .speed-control-header { width: 100%; }
    #speedPresetSelect { width: calc(100% - 24px); }
}

#ultimosNumeros {
    margin-top: 30px;
    color: var(--text-primary);
}

#ultimosNumeros p {
    font-size: 1.0em;
    margin: 5px 0;
    font-weight: bold;
    color: var(--text-primary);
}

#verificarNumeroContainer, #verificarCartonContainer {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

#verificarNumeroContainer input, #verificarCartonContainer input {
    padding: 10px;
    font-size: 1.1em;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    width: 120px;
    box-sizing: border-box;
    margin-top: 5px;
    margin-bottom: 5px;
    background-color: var(--bg-card);
    color: var(--text-primary);
    transition: all 0.3s ease;
}

#verificarNumeroContainer input:focus, #verificarCartonContainer input:focus {
    outline: none;
    border-color: var(--bingo-success);
    box-shadow: 0 0 10px rgba(46, 204, 113, 0.5);
}

#verificarNumeroContainer button, #verificarCartonContainer button {
    padding: 10px 20px;
    font-size: 1.1em;
    margin-top: 5px;
    margin-bottom: 5px;
}

#verificarNumeroContainer button:hover, #verificarCartonContainer button:hover {
    background-color: #28a745;
}

#mensajeVerificacion, #mensajeVerificacionCarton {
    font-size: 0.95em;
    color: var(--text-primary);
    min-height: 11px;
    line-height: 1.3;
    margin-top: 10px;
}

.status-message {
    position: relative;
    display: block;
    width: 100%;
    box-sizing: border-box;
    margin-top: 12px;
    padding: 14px 16px 14px 18px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.04);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
    font-weight: 700;
    line-height: 1.35;
    text-align: left;
    overflow: hidden;
}

.status-message::before {
    content: '';
    position: absolute;
    inset: 0 auto 0 0;
    width: 6px;
    border-radius: 16px 0 0 16px;
    background: currentColor;
    opacity: 0.88;
}

.status-message.is-success {
    background: linear-gradient(135deg, rgba(40, 167, 69, 0.22), rgba(40, 167, 69, 0.08));
    border-color: rgba(40, 167, 69, 0.34);
    color: #7cf0a8;
}

.status-message.is-error {
    background: linear-gradient(135deg, rgba(220, 53, 69, 0.22), rgba(220, 53, 69, 0.08));
    border-color: rgba(220, 53, 69, 0.34);
    color: #ff9aa4;
}

.status-message.is-warning {
    background: linear-gradient(135deg, rgba(255, 193, 7, 0.20), rgba(255, 193, 7, 0.08));
    border-color: rgba(255, 193, 7, 0.36);
    color: #ffe08a;
}

#trackerMsg.status-message,
#mensajeVerificacionCarton.status-message {
    width: 100%;
    max-width: 100%;
}

#estadoJuego {
    margin-top: 15px;
    padding: 10px;
    font-size: 1.0em;
    font-weight: bold;
    color: #fff;
    border-radius: 5px;
    display: none;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

#estadoJuego.enMarcha { background-color: #28a745; color: white; }
#estadoJuego.pausado { background-color: #dc3545; color: white; }
#estadoJuego.listo { background-color: #ffc107; color: #212529; }
#estadoJuego.finalizado { background-color: #6c757d; color: white; }
#estadoJuego.pausadoInput { background-color: #6c757d; color: white; }

#cartonesContainer { display: none; }

/* Night Mode Toggle Button */
#nightModeToggle {
    transition: transform 0.3s ease, box-shadow 0.3s ease !important;
}

#nightModeToggle:hover {
    transform: scale(1.05) !important;
    box-shadow: 0 6px 20px rgba(0,0,0,0.3) !important;
}

#nightModeToggle:active {
    transform: scale(0.98) !important;
}

/* Cartones Guardados Container - uses .control-box for layout */
#cartonesGuardadosContainer h3 {
    color: var(--text-primary);
}

#listaCartonesGuardados > div {
    background-color: var(--bg-card);
    padding: 10px;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

#listaCartonesGuardados strong {
    color: var(--text-primary);
    display: block;
    margin-bottom: 5px;
}

#listaCartonesGuardados div[style*="grid"] {
    background-color: var(--bg-card) !important;
    border: 1px solid var(--border-color) !important;
}

#listaCartonesGuardados div[style*="grid"] > div {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color) !important;
}

#toggleCartonesBtn {
    background: linear-gradient(135deg, var(--btn-primary) 0%, var(--btn-primary-hover) 100%) !important;
    border: 2px solid var(--border-primary) !important;
    transition: all 0.3s ease;
}

#toggleCartonesBtn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg) !important;
}

/* Voice Settings Container - uses .control-box for layout */
#voiceSettingsContainer {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

#voiceSettingsContainer label {
    color: var(--text-primary);
    font-weight: 500;
}

#voiceSelect {
    background-color: var(--bg-card);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    padding: 8px;
    border-radius: 8px;
    font-size: 1em;
    width: 100%;
    /* Remove fixed max-width to allow it to fill the control box naturally like others, or set to a balanced width */
    max-width: 90%; 
    margin-top: 8px;
}

/* Cartones Bingo Container - uses .control-box for layout */
#cartonesBingoContainer h3 {
    color: var(--text-primary);
}

#listaCartonesBingo {
    background-color: var(--bg-card) !important;
    border: 1px solid var(--border-color) !important;
    box-shadow: var(--shadow-sm) !important;
}

@media (max-width: 600px) {
    #numeroContainer { width: 140px; height: 140px; }
    #numerosContainer, #ultimosNumerosContainer { 
        grid-template-columns: repeat(10, 1fr) !important; 
        width: 100% !important;
        max-width: 100% !important; 
        gap: 4px !important; 
        padding: 5px !important;
    }
    
    button {
        font-size: 1em;
        padding: 12px 14px;
        min-width: 0;
        min-height: 44px;
    }

    #myCardsTrackerContainer, #verificarNumeroContainer, #verificarCartonContainer, .control-box {
        width: 90%;
        max-width: none;
        box-sizing: border-box;
    }

    /* Avoid iOS zoom on focus (>=16px) */
    input, select {
        font-size: 16px;
    }

    /* Reduce scroll jitter on mobile */
    .topbar {
        -webkit-backdrop-filter: none;
        backdrop-filter: none;
        background: var(--bg-tertiary);
    }

    .page-spacer {
        height: 60px;
    }

    #verificarNumeroContainer input, #verificarCartonContainer input {
        font-size: 1em;
        width: 100px; 
        padding: 8px;
        flex-grow: 1; 
        max-width: 150px; 
    }
    #verificarNumeroContainer button, #verificarCartonContainer button {
        font-size: 1em;
        padding: 8px 15px;
        flex-shrink: 0; 
    }
    #listaCartonesBingo { gap: 5px; }
    .bingo-group { padding: 5px; gap: 4px; }
    .cartonBingo { padding: 5px 10px; font-size: 0.8em; }
}

/* Web3: Mejoras para pantallas muy estrechas (teléfonos) */
@media (max-width: 420px) {
    body[data-page="web3"] {
        padding-top: 40px;
        font-size: clamp(0.8rem, 1vw, 1rem);
    }
    body[data-page="web3"] #numeroContainer {
        width: 120px;
        height: 120px;
    }
    body[data-page="web3"] .control-box {
        padding: 10px;
        margin: 10px auto;
        max-width: 100%;
    }
    body[data-page="web3"] .icon-btn {
        padding: 6px 8px;
        font-size: 0.85rem;
    }
    body[data-page="web3"] #numerosContainer {
        grid-template-columns: repeat(6, 1fr);
        gap: 6px;
        padding: 6px;
    }
    body[data-page="web3"] .numeroCirculo {
        width: 26px;
        height: 26px;
        font-size: 0.75rem;
    }
    body[data-page="web3"] .ultimoNumeroCirculo {
        width: 30px;
        height: 30px;
        font-size: 0.9rem;
    }
    body[data-page="web3"] #ultimosNumerosContainer {
        padding: 8px;
    }
    body[data-page="web3"] #toggleCartonesBtn,
    body[data-page="web3"] .btn,
    body[data-page="web3"] .btn-secondary {
        width: 100%;
        padding: 10px 12px;
    }
    #enableSoundBanner { padding: 10px; }
    main.center { margin-top: 10px; padding: 8px; }
}

/* Modal Styling for Sharing (Web 2) */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.7);
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: var(--bg-card);
    margin: 10vh auto;
    padding: 25px;
    border: 1px solid var(--border-color);
    width: 90%;
    max-width: 480px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    position: relative;
    text-align: center;
    color: var(--text-primary);
}

.close-modal {
    color: var(--text-secondary);
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
}

.close-modal:hover {
    color: var(--btn-secondary);
}

.modal-content h2 {
    margin-top: 0;
    font-size: 1.5rem;
}

#qrCodeContainer { 
    margin: 15px auto; 
    display: inline-block; 
    padding: 10px;
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    line-height: 0;
}

#qrCodeContainer img {
    margin: 0 auto;
}

#modalTokenContainer {
    margin: 15px auto;
    background-color: var(--bg-secondary);
    border-radius: 12px;
    padding: 15px;
    box-shadow: var(--shadow-md);
}

#modalTokenDisplay { 
    display: block;
    text-align: center;
    margin: 5px 0;
    font-size: 3rem !important;
    font-weight: 800;
    color: var(--btn-primary);
    letter-spacing: 4px;
}

#modalShareUrl { 
    word-break: break-all; 
    margin: 15px 0; 
    font-size: 0.85em;
    color: var(--text-secondary);
    padding: 10px;
    background: var(--bg-tertiary);
    border-radius: 8px;
    max-height: 60px;
    overflow-y: auto;
}

/* Web3 Card Sizing - Different sizes for better responsive layout */
body[data-page="web3"] #cartonesContainer {
    display: grid !important;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
    padding: 15px;
}

/* Variable card sizes for Web3 */
body[data-page="web3"] #cartonesContainer > div {
    transform: scale(1);
    transition: transform 0.3s ease;
    min-width: 180px;
    max-width: 200px;
}

body[data-page="web3"] #cartonesContainer > div:hover {
    transform: scale(1.05);
}

/* Mobile: Smaller cards */
@media (max-width: 768px) {
    body[data-page="web3"] #cartonesContainer {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
        gap: 8px;
        padding: 10px;
    }
    
    body[data-page="web3"] #cartonesContainer > div {
        min-width: 140px;
        max-width: 160px;
    }
}

/* Tablet: Medium cards */
@media (min-width: 769px) and (max-width: 1024px) {
    body[data-page="web3"] #cartonesContainer {
        grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
        gap: 10px;
    }
    
    body[data-page="web3"] #cartonesContainer > div {
        min-width: 160px;
        max-width: 180px;
    }
}

/* Desktop: Larger cards */
@media (min-width: 1025px) {
    body[data-page="web3"] #cartonesContainer {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 15px;
    }
    
    body[data-page="web3"] #cartonesContainer > div {
        min-width: 200px;
        max-width: 220px;
    }
}

/* Connection Toast Notification */
.connection-toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: rgba(40, 167, 69, 0.95);
    color: white;
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: bold;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    z-index: 10000;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    pointer-events: none;
    white-space: nowrap;
}

.connection-toast.show {
    transform: translateX(-50%) translateY(0);
}