/* ==========================================================================
   Plataforma de Rehabilitación Neurocognitiva - Sistema de Diseño Terapéutico Responsivo
   ========================================================================== */

:root {
    --bg-color: hsl(220, 25%, 9%);
    --bg-surface: hsl(220, 20%, 15%);
    --bg-card: hsl(220, 18%, 18%);
    --bg-card-hover: hsl(220, 20%, 22%);
    
    --text-primary: hsl(0, 0%, 96%);
    --text-secondary: hsl(215, 20%, 75%);
    --text-muted: hsl(215, 15%, 55%);
    
    --accent-blue: hsl(210, 100%, 56%);
    --accent-blue-hover: hsl(210, 100%, 65%);
    --accent-green: hsl(145, 75%, 45%);
    --accent-green-hover: hsl(145, 75%, 55%);
    --accent-purple: hsl(270, 70%, 60%);
    --accent-amber: hsl(40, 95%, 55%);
    --accent-red: hsl(355, 85%, 58%);
    
    --border-color: hsl(220, 15%, 25%);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    
    --shadow-soft: 0 10px 25px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 20px rgba(52, 152, 219, 0.25);
    --zoom-factor: 1;
}

body.zoom-125 { --zoom-factor: 1.25; font-size: 1.15rem; }
body.zoom-150 { --zoom-factor: 1.5; font-size: 1.3rem; }

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    zoom: var(--zoom-factor);
}

/* Envoltorio General con Layout de Zona Segura */
.app-container {
    display: flex;
    width: 100%;
    min-height: 100vh;
    position: relative;
    box-sizing: border-box;
}

/* ZONA SEGURA APROVECHANDO EL 100% DEL ANCHO DE PANTALLA DE FORMA FLUIDA */
.safe-zone-left {
    width: 100%;
    max-width: 1100px;
    min-height: 100vh;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin: 0 auto;
    box-sizing: border-box;
}

/* SIDEBAR VERTICAL DESPLEGABLE TIPO SLIDE-OUT (ESTILO AGENTES DE IA CON TRES RAYITAS) */
.accessibility-sidebar-right {
    position: fixed;
    top: 0;
    right: 0;
    width: 320px;
    height: 100vh;
    background-color: var(--bg-surface);
    border-left: 3px solid var(--accent-amber);
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    overflow-y: auto;
    box-shadow: -15px 0 45px rgba(0, 0, 0, 0.75);
    z-index: 9998;
    box-sizing: border-box;
    transform: translateX(105%);
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.accessibility-sidebar-right.open {
    transform: translateX(0);
}

/* BOTÓN DESPLEGABLE FLOTANTE CON TRES RAYITAS ☰ (ESTILO AGENTES DE IA) */
.sidebar-toggle-btn {
    position: fixed;
    top: 18px;
    right: 22px;
    z-index: 9999;
    background: linear-gradient(135deg, var(--accent-amber), hsl(35, 95%, 45%));
    color: #000000;
    border: 2px solid #ffffff;
    border-radius: 30px;
    padding: 0.6rem 1.25rem;
    font-size: 1.05rem;
    font-weight: 900;
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(241, 196, 15, 0.45);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    user-select: none;
    touch-action: manipulation;
}

.sidebar-toggle-btn:hover {
    transform: scale(1.06);
    box-shadow: 0 8px 25px rgba(241, 196, 15, 0.65);
}

.sidebar-toggle-btn.active {
    background: linear-gradient(135deg, var(--accent-red), hsl(355, 85%, 45%));
    color: #ffffff;
    box-shadow: 0 6px 20px rgba(231, 76, 60, 0.5);
}

/* TELÓN DE FONDO TRANSPARENTE (BACKDROP BLUR) */
.sidebar-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(4px);
    z-index: 9997;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.sidebar-backdrop.active {
    opacity: 1;
    pointer-events: auto;
}

.sidebar-title {
    font-size: 1.1rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--accent-amber);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.6rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.toolbar-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toolbar-group-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-secondary);
}

.btn-pill {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.65rem 0.9rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    text-align: left;
    transition: all 0.2s ease;
    min-height: 42px;
    display: flex;
    align-items: center;
}

.btn-pill:hover { background-color: var(--bg-card-hover); color: var(--text-primary); }
.btn-pill.active { background-color: var(--accent-blue); color: #ffffff; border-color: var(--accent-blue); }
.btn-pill.difficulty.low.active { background-color: var(--accent-green); border-color: var(--accent-green); }
.btn-pill.difficulty.med.active { background-color: var(--accent-amber); border-color: var(--accent-amber); }
.btn-pill.difficulty.high.active { background-color: var(--accent-red); border-color: var(--accent-red); }

/* REGLA GRADUADA EN DÉCIMAS */
.ruler-speed-box {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 1rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    width: 100%;
    box-sizing: border-box;
}

.ruler-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.ruler-value {
    color: var(--accent-amber);
    font-size: 1.2rem;
    font-weight: 800;
}

.ruler-slider-container {
    position: relative;
    width: 100%;
}

.ruler-slider-container input[type="range"] {
    width: 100%;
    accent-color: var(--accent-amber);
    cursor: pointer;
    height: 8px;
}

.ruler-scale {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 700;
    margin-top: 0.25rem;
    padding: 0 2px;
}

/* Badges de Cronómetro de Juego */
.game-timer-badge {
    background-color: hsla(210, 100%, 56%, 0.15);
    color: var(--accent-blue);
    border: 1px solid var(--accent-blue);
    padding: 0.4rem 0.9rem;
    border-radius: 20px;
    font-weight: 700;
    font-size: 1.05rem;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.game-timer-badge.countdown {
    background-color: hsla(40, 95%, 55%, 0.15);
    color: var(--accent-amber);
    border-color: var(--accent-amber);
}

/* Vidas y Animación de Corazón Perdido */
.lives-display {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background-color: var(--bg-surface);
    padding: 0.4rem 0.9rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    font-size: 1.2rem;
}

.heart-item {
    display: inline-block;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.heart-item.losing {
    animation: heartPopFade 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

@keyframes heartPopFade {
    0% { transform: scale(1) rotate(0deg); opacity: 1; }
    40% { transform: scale(2.2) rotate(-15deg); filter: drop-shadow(0 0 15px var(--accent-red)); opacity: 1; }
    70% { transform: scale(1.8) rotate(15deg); opacity: 0.8; }
    100% { transform: scale(1) rotate(0deg); opacity: 0.3; filter: grayscale(1); }
}

/* Modales Centrados Responsivos */
.victory-modal-backdrop {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    background-color: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    padding: 1rem;
    box-sizing: border-box;
    animation: fadeInModal 0.3s ease forwards;
}

.victory-modal-card, .life-lost-modal-card {
    background: linear-gradient(135deg, hsl(220, 25%, 18%), hsl(220, 20%, 14%));
    border: 3px solid var(--accent-green);
    border-radius: var(--radius-lg);
    padding: 2rem 1.75rem;
    text-align: center;
    max-width: 500px;
    width: 95%;
    box-sizing: border-box;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
    animation: zoomInModal 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

.life-lost-modal-card {
    border-color: var(--accent-amber);
}

.victory-icon, .life-lost-icon { font-size: 3.8rem; display: block; margin-bottom: 0.5rem; }
.victory-title, .life-lost-title { font-size: 1.75rem; font-weight: 800; color: var(--accent-green); margin-bottom: 0.5rem; }
.life-lost-title { color: var(--accent-amber); }
.victory-message { font-size: 1.1rem; color: var(--text-primary); margin-bottom: 1.5rem; line-height: 1.5; }

@keyframes fadeInModal { from { opacity: 0; } to { opacity: 1; } }
@keyframes zoomInModal { from { transform: scale(0.6); opacity: 0; } to { transform: scale(1); opacity: 1; } }

.btn-hint {
    background-color: var(--accent-amber); color: #000000; font-weight: 700;
    padding: 0.6rem 1.2rem; border-radius: var(--radius-sm); border: none;
    cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
    transition: transform 0.2s, background-color 0.2s;
    min-height: 44px;
    box-shadow: 0 4px 12px rgba(241, 196, 15, 0.3);
}

.hint-highlight {
    animation: hintPulse 1.2s infinite alternate ease-in-out !important;
    border-color: var(--accent-amber) !important;
    box-shadow: 0 0 25px var(--accent-amber) !important;
}

/* Headers & Grid */
.header-main { border-bottom: 1px solid var(--border-color); padding-bottom: 1.25rem; }
.header-title { font-size: 2.2rem; font-weight: 700; color: var(--text-primary); display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }
.header-subtitle { font-size: 1.05rem; color: var(--text-secondary); margin-top: 0.4rem; }

.session-bar {
    display: flex; align-items: center; justify-content: space-between;
    background-color: var(--bg-surface); padding: 0.85rem 1.25rem;
    border-radius: var(--radius-sm); border: 1px solid var(--border-color);
    font-size: 0.95rem; color: var(--text-secondary); flex-wrap: wrap; gap: 0.5rem;
}

.grid-modules { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 1.5rem; }

.card-module {
    background-color: var(--bg-card); border-radius: var(--radius-md); padding: 1.75rem;
    border: 1px solid var(--border-color); border-left: 6px solid var(--accent-blue);
    display: flex; flex-direction: column; justify-content: space-between; gap: 1.25rem;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.card-module:hover { transform: translateY(-4px); box-shadow: var(--shadow-soft); background-color: var(--bg-card-hover); }
.card-module.purple { border-left-color: var(--accent-purple); }
.card-module.green { border-left-color: var(--accent-green); }
.card-module.amber { border-left-color: var(--accent-amber); }

.card-tag { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 1px; font-weight: 700; color: var(--text-muted); }
.card-title { font-size: 1.35rem; color: var(--text-primary); margin-top: 0.25rem; }
.card-desc { font-size: 0.95rem; color: var(--text-secondary); margin-top: 0.5rem; }

.btn-action {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
    background-color: var(--accent-blue); color: #ffffff; font-size: 1.05rem; font-weight: 600;
    padding: 0.85rem 1.6rem; border-radius: var(--radius-sm); border: none; text-decoration: none;
    cursor: pointer; transition: background-color 0.2s ease, transform 0.1s ease;
    min-height: 44px;
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}
.btn-action:hover { background-color: var(--accent-blue-hover); transform: scale(1.02); }
.btn-action.btn-green { background-color: var(--accent-green); box-shadow: 0 4px 12px rgba(46, 204, 113, 0.3); }
.btn-action.btn-green:hover { background-color: var(--accent-green-hover); }
.btn-action.btn-secondary { background-color: var(--bg-surface); color: var(--text-primary); border: 1px solid var(--border-color); box-shadow: none; }
.btn-action.btn-secondary:hover { background-color: var(--bg-card-hover); }

.btn-back {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: #ffffff;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 800;
    padding: 0.65rem 1.3rem;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, hsl(270, 85%, 55%), hsl(290, 90%, 45%));
    border: 2px solid hsl(280, 100%, 80%);
    box-shadow: 0 4px 15px rgba(155, 89, 182, 0.45);
    transition: all 0.2s ease;
    width: fit-content;
    min-height: 42px;
}
.btn-back:hover {
    color: #ffffff;
    background: linear-gradient(135deg, hsl(270, 90%, 60%), hsl(290, 95%, 50%));
    transform: translateY(-2px) scale(1.03);
}

/* ==========================================================================
   ADAPTACIÓN RESPONSIVA Y MEDIA QUERIES PARA PANTALLAS Y MÓVILES
   ========================================================================== */

@media (max-width: 600px) {
    .sidebar-toggle-btn {
        top: 12px;
        right: 12px;
        padding: 0.5rem 0.95rem;
        font-size: 0.95rem;
    }
    .accessibility-sidebar-right {
        width: 85vw;
        max-width: 320px;
    }
    .header-title { font-size: 1.5rem; }
    .header-subtitle { font-size: 0.9rem; }
    .grid-modules { grid-template-columns: 1fr !important; gap: 1rem; }
    .card-module { padding: 1.25rem; }
    .score-board { flex-direction: column; align-items: flex-start; gap: 0.6rem !important; width: 100%; }
    .btn-action, .btn-back, .btn-pill { width: 100%; }
    canvas { max-width: 100% !important; height: auto !important; }
}