/* ============================================================
   LEY DE LA VELOCIDAD DE LA DESIGUALDAD
   Estilos de la simulación interactiva. Continuidad con el sitio:
   reutiliza tokens de main.css (--accent-*, --font-*, etc.).
   ============================================================ */

/* === Bloque del teorema (corazón de la página) === */
.lv-theorem {
    background: #FBF8F1;
    border: 1px solid var(--accent-secondary);
    border-left: 4px solid var(--accent-secondary);
    padding: 30px 32px;
    margin: 40px 0;
}

.lv-theorem .lv-theorem-title {
    font-family: var(--font-heading);
    color: var(--accent-primary);
    font-size: 1.5rem;
    margin-bottom: 16px;
}

.lv-theorem p { margin-bottom: 14px; }

.lv-regime-line {
    border-left: 3px solid var(--border-color);
    padding-left: 16px;
    margin: 14px 0;
}

.lv-regime-line.stable { border-left-color: var(--accent-secondary); }
.lv-regime-line.accel { border-left-color: var(--accent-red); }

/* === Ecuaciones en bloque === */
.lv-eq {
    background: #FAFAFA;
    border: 1px solid var(--border-color);
    padding: 18px 20px;
    margin: 20px 0;
    text-align: center;
    overflow-x: auto;
}

/* === Simulador === */
.lv-sim {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 28px;
    margin: 40px 0;
}

.lv-sim-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 20px;
}

.lv-sim-header h3 {
    margin: 0;
    border: none;
    padding: 0;
}

.lv-regime-badge {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 3px;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    background: #eee;
    color: #444;
}

.regime-estable { background: #e8f5e9; color: #2e7d32; }
.regime-umbral { background: #fff3e0; color: #e65100; }
.regime-acelerado { background: #ffebee; color: #c62828; }
.regime-acotado { background: #e9eef5; color: #2C3E50; }

/* === Presets === */
.lv-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 24px;
}

.lv-preset-btn {
    background: transparent;
    border: 1px solid var(--accent-primary);
    color: var(--accent-primary);
    font-family: var(--font-body);
    font-size: 0.82rem;
    font-weight: 500;
    padding: 8px 14px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

/* === Controles (sliders) === */
.lv-controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px 28px;
    margin-bottom: 24px;
    padding-bottom: 22px;
    border-bottom: 1px solid var(--border-color);
}

.lv-control { display: flex; flex-direction: column; }

.lv-control label {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.lv-control label .lv-val {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--accent-primary);
}

.lv-control input[type="range"] {
    width: 100%;
    accent-color: var(--accent-secondary);
    cursor: pointer;
    /* objetivo táctil cómodo en móvil */
    min-height: 28px;
}

.lv-control.lv-disabled { opacity: 0.45; }

/* Toggle UCC */
.lv-toggle {
    flex-direction: row;
    align-items: center;
    gap: 12px;
}

.lv-toggle label { margin: 0; }

.lv-toggle input[type="checkbox"] {
    width: 22px;
    height: 22px;
    accent-color: var(--accent-primary);
    cursor: pointer;
}

/* === Mensaje de estado === */
.lv-status {
    background: #F0F5FA;
    border: 1px solid #D0E0F0;
    padding: 14px 18px;
    margin-bottom: 24px;
    font-size: 0.95rem;
    color: #333;
}

/* === Paneles canvas === */
.lv-panels { display: grid; gap: 28px; }

.lv-panel { display: flex; flex-direction: column; }

.lv-panel-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 8px;
}

.lv-panel-head h4 {
    font-family: var(--font-heading);
    color: var(--accent-primary);
    font-size: 1.1rem;
    margin: 0;
}

.lv-panel-head .lv-panel-sub {
    font-size: 0.82rem;
    color: var(--text-secondary);
}

.lv-panel canvas {
    width: 100%;
    display: block;
    background: #fff;
    border: 1px solid var(--border-color);
}

/* Panel C destacado (elemento firma) */
.lv-panel-signature {
    border-top: 2px solid var(--accent-secondary);
    padding-top: 20px;
    margin-top: 4px;
}

.lv-panel-signature .lv-panel-head h4 { font-size: 1.3rem; }

.lv-log-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.82rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.lv-log-toggle input { accent-color: var(--accent-secondary); }

/* === Limitaciones === */
.lv-limits {
    list-style: none;
    margin: 16px 0;
}

.lv-limits li {
    padding-left: 20px;
    position: relative;
    margin-bottom: 10px;
    color: var(--text-secondary);
    font-size: 0.98rem;
}

.lv-limits li::before {
    content: "—";
    position: absolute;
    left: 0;
    color: var(--accent-secondary);
}

/* === Cierre aforístico === */
.lv-closing {
    font-family: var(--font-heading);
    font-style: italic;
    font-size: 1.3rem;
    line-height: 1.5;
    color: var(--accent-primary);
    text-align: center;
    border-top: 1px solid var(--accent-secondary);
    border-bottom: 1px solid var(--accent-secondary);
    padding: 30px 20px;
    margin: 40px 0;
}

/* === Responsive === */
@media (min-width: 992px) {
    /* En escritorio, A y B lado a lado; C a todo lo ancho. */
    .lv-panels {
        grid-template-columns: 1fr 1fr;
    }
    .lv-panel-signature { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
    .lv-sim { padding: 18px; }
    .lv-controls { grid-template-columns: 1fr; }
    .lv-closing { font-size: 1.1rem; }
}

@media (prefers-reduced-motion: reduce) {
    .lv-preset-btn,
    .lv-control input { transition: none; }
}