/* =============================================
   ENGLISH ACADEMY RVN — clases.css
   Página de clases / Master Classes
   ============================================= */

/* ── LAYOUT BASE ── */
body {
    background: var(--bg-darker);
    color: var(--text-primary);
    font-family: 'Poppins', sans-serif;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ── NAV ── */
.cl-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(9, 14, 22, 0.95);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(20px);
}

.cl-nav-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
    gap: 16px;
    position: relative;
}

.cl-nav-left {
    display: flex;
    align-items: center;
    gap: 20px;
    min-width: 0;
}

.cl-logo {
    font-size: 0.9375rem;
    font-weight: 800;
    white-space: nowrap;
    flex-shrink: 0;
}

.cl-logo span {
    color: var(--primary-light);
}

.cl-breadcrumb {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    color: var(--text-muted);
    min-width: 0;
    overflow: hidden;
}

.cl-breadcrumb a {
    color: var(--text-muted);
    transition: var(--transition);
}

.cl-breadcrumb a:hover {
    color: var(--primary-light);
}

.cl-breadcrumb i {
    font-size: 0.5625rem;
}

/* Ocultar "Dashboard" y su chevron — mostrar solo Nivel › Tema */
.cl-bc-home {
    display: none;
}

.cl-bc-sep-home {
    display: none;
}

.cl-bc-nivel {
    flex-shrink: 0;
    font-weight: 700;
    color: var(--primary-light);
}

.cl-bc-tema {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
}

.cl-breadcrumb .active {
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
}

.cl-nav-right {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

/* Font switcher en nav */
.font-switcher {
    display: flex;
    align-items: center;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 3px;
    gap: 2px;
}

.fs-btn {
    padding: 4px 10px;
    border-radius: 7px;
    border: none;
    background: none;
    color: var(--text-muted);
    cursor: pointer;
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    transition: var(--transition);
    line-height: 1;
}

.fs-btn:nth-child(1) {
    font-size: 0.6875rem;
}

.fs-btn:nth-child(2) {
    font-size: 0.875rem;
}

.fs-btn:nth-child(3) {
    font-size: 1.0625rem;
}

.fs-btn.active {
    background: var(--primary);
    color: #fff;
}

.fs-btn:hover:not(.active) {
    background: var(--primary-glow);
    color: var(--text-primary);
}

/* Botón tema en nav */
.theme-dot-nav {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 0.875rem;
    transition: var(--transition);
    position: relative;
}

.theme-dot-nav:hover {
    background: var(--primary-glow);
    border-color: var(--border-hover);
    color: var(--primary-light);
}

/* User chip nav */
.cl-user-chip {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 12px 4px 4px;
    background: var(--primary-glow);
    border: 1px solid var(--border);
    border-radius: 99px;
    transition: var(--transition);
}

.cl-user-chip:hover {
    border-color: var(--border-hover);
}

.cl-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.cl-user-chip span {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-primary);
}

.cl-logout {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: none;
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.cl-logout:hover {
    background: rgba(229, 57, 53, 0.1);
    border-color: rgba(229, 57, 53, 0.3);
    color: #ff7070;
}

/* ── BARRA PROGRESO GENERAL ── */
.cl-progress-bar-wrap {
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border);
    padding: 10px 24px;
}

.cl-progress-bar-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 16px;
}

.cl-prog-info {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    color: var(--text-muted);
    white-space: nowrap;
    flex-shrink: 0;
}

.cl-prog-info .sep {
    color: var(--border-hover);
}

.cl-prog-track {
    flex: 1;
    height: 5px;
    background: var(--bg-darker);
    border-radius: 99px;
    overflow: hidden;
    border: 1px solid var(--border);
}

.cl-prog-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    border-radius: 99px;
    transition: width 0.5s ease;
}

.cl-prog-badges {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.badge-nivel {
    font-size: 0.6875rem;
    font-weight: 700;
    padding: 2px 10px;
    border-radius: 99px;
    background: var(--primary-glow);
    color: var(--primary-light);
    border: 1px solid var(--border);
}

.badge-cat {
    font-size: 0.6875rem;
    font-weight: 600;
    padding: 2px 10px;
    border-radius: 99px;
    background: var(--bg-darker);
    color: var(--text-muted);
    border: 1px solid var(--border);
}

.badge-time {
    font-size: 0.6875rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
}

/* ── LAYOUT PRINCIPAL ── */
.cl-layout {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px;
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 20px;
    align-items: start;
    min-height: calc(100vh - 120px);
}

/* ── SIDEBAR ── */
.cl-sidebar {
    display: flex;
    flex-direction: column;
    gap: 14px;
    position: sticky;
    top: 100px;
}

/* ── CARD BASE ── */
.cl-card {
    background: rgba(26, 35, 50, 0.85);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 16px;
    backdrop-filter: blur(16px);
}

.cl-card-label {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.sidebar-header-card h2 {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
    line-height: 1.4;
}

.sidebar-header-card p {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* Section nav */
.section-nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sec-nav-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: 10px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-muted);
    cursor: pointer;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    transition: var(--transition);
    font-family: 'Poppins', sans-serif;
}

.sec-nav-btn:hover {
    background: var(--primary-glow);
    color: var(--text-secondary);
}

.sec-nav-btn.active {
    background: var(--primary);
    color: #fff;
    font-weight: 600;
}

.sec-nav-btn.done {
    color: var(--text-secondary);
}

.sec-nav-btn.done::before {
    content: '✓';
    font-size: 0.6875rem;
    color: #4CAF50;
    font-weight: 700;
}

.sec-nav-btn:not(.done):not(.active)::before {
    content: '○';
    font-size: 0.6875rem;
    color: var(--text-muted);
}

.sec-nav-btn.active::before {
    content: '▶';
    font-size: 0.5625rem;
}

/* Stats grid */
.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.stat-box {
    border-radius: 12px;
    padding: 12px 8px;
    text-align: center;
    border: 1px solid var(--border);
}

.stat-box.success {
    background: rgba(76, 175, 80, 0.08);
}

.stat-box.danger {
    background: rgba(229, 57, 53, 0.08);
}

.stat-box.neutral {
    background: var(--bg-darker);
}

.stat-num {
    font-size: 1.375rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 4px;
}

.stat-box.success .stat-num {
    color: #4CAF50;
}

.stat-box.danger .stat-num {
    color: #E53935;
}

.stat-box.neutral .stat-num {
    color: var(--text-primary);
}

.stat-lbl {
    font-size: 0.6875rem;
    color: var(--text-muted);
}

/* Clase nav card */
.clase-nav-card {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.clase-nav-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 9px 14px;
    border-radius: 10px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-muted);
    border: 1px solid var(--border);
    background: none;
    cursor: pointer;
    transition: var(--transition);
    font-family: 'Poppins', sans-serif;
    width: 100%;
    justify-content: center;
}

.clase-nav-btn:hover {
    background: var(--primary-glow);
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.clase-nav-btn.next {
    background: var(--primary-glow);
    border-color: var(--border-hover);
    color: var(--primary-light);
}

.clase-nav-btn.next:hover {
    background: var(--primary);
    color: #fff;
}

.clase-actual-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary-light);
    text-align: center;
    padding: 6px;
    background: var(--primary-glow);
    border-radius: 8px;
}

/* ── MAIN CONTENT ── */
.cl-main {
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-width: 0;
    width: 100%;
    overflow: visible;
}

/* Loading */
.cl-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 20px;
    color: var(--text-muted);
    gap: 16px;
}

.loading-spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ── SECCIÓN HEADER ── */
.seccion-header {
    background: rgba(26, 35, 50, 0.85);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px 24px;
    backdrop-filter: blur(16px);
}

.seccion-header h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.seccion-formula {
    display: inline-block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--primary-light);
    background: var(--primary-glow);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 4px 14px;
    margin-bottom: 10px;
    font-family: monospace;
}

.seccion-regla {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    padding-left: 14px;
    border-left: 3px solid var(--primary);
}

/* ── TARJETA FRASE CENTRAL ── */
.frase-card {
    background: rgba(26, 35, 50, 0.85);
    border: 2px solid var(--primary);
    border-radius: 20px;
    padding: 28px 24px;
    text-align: center;
    backdrop-filter: blur(16px);
    position: relative;
    box-shadow: 0 0 40px var(--primary-glow);
    transition: var(--transition);
}

.frase-counter {
    font-size: 0.6875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 20px;
}

.frase-en {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.3;
    transition: var(--transition);
}

.frase-es {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.frase-nota {
    display: inline-block;
    font-size: 0.75rem;
    color: var(--text-muted);
    background: var(--bg-darker);
    border: 1px solid var(--border);
    border-radius: 99px;
    padding: 4px 14px;
    margin-bottom: 24px;
}

/* Controles audio en tarjeta */
.audio-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.btn-play {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border: none;
    color: #fff;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-primary);
    transition: var(--transition);
    flex-shrink: 0;
}

.btn-play:hover {
    transform: scale(1.08);
    box-shadow: 0 8px 24px rgba(74, 144, 217, 0.5);
}

.btn-play.playing {
    background: linear-gradient(135deg, #E53935, #ff7070);
}

.ctrl-select {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-darker);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 6px 12px;
}

.ctrl-select label {
    font-size: 0.6875rem;
    color: var(--text-muted);
    white-space: nowrap;
}

.ctrl-select select {
    font-size: 0.8125rem;
    border: none;
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
    font-family: 'Poppins', sans-serif;
    outline: none;
}

/* Modos */
.modo-btns {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
}

.modo-btn {
    font-size: 0.8125rem;
    padding: 7px 18px;
    border-radius: 99px;
    border: 1px solid var(--border);
    background: var(--bg-darker);
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
    font-family: 'Poppins', sans-serif;
    display: flex;
    align-items: center;
    gap: 6px;
}

.modo-btn:hover {
    border-color: var(--border-hover);
    color: var(--text-secondary);
}

.modo-btn.active {
    background: var(--primary-glow);
    border-color: var(--primary);
    color: var(--primary-light);
    font-weight: 600;
}

.modo-mic.active {
    background: rgba(239, 68, 68, 0.15) !important;
    border-color: #ef4444 !important;
    color: #f87171 !important;
}

/* ── Inglés de referencia Esc-Mos ── */
.cl-card-en-ref {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-light);
    background: var(--primary-glow);
    border: 1px solid color-mix(in srgb, var(--primary) 30%, transparent);
    border-radius: 8px;
    padding: 8px 12px;
    line-height: 1.45;
    margin: 8px 0;
}

/* ── Área Mic ── */
.cl-mic-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    padding: 16px 0 8px;
}

.cl-mic-countdown {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    border: 3px solid var(--primary);
    background: var(--primary-glow);
}

.cl-mic-countdown span {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--primary-light);
    line-height: 1;
    font-variant-numeric: tabular-nums;
}

.cl-mic-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 7px;
    width: 90px;
    height: 90px;
    border-radius: 50%;
    border: 2px solid var(--border);
    background: var(--bg-input);
    color: var(--text-secondary);
    cursor: pointer;
    font-family: 'Poppins', sans-serif;
    font-size: 0.7rem;
    font-weight: 600;
    transition: all 0.2s ease;
}

.cl-mic-btn i {
    font-size: 1.6rem;
}

.cl-mic-btn:hover {
    border-color: var(--primary);
    color: var(--primary-light);
    background: var(--primary-glow);
}

.cl-mic-btn.listening {
    border-color: #ef4444;
    color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
    animation: clMicPulse 1.2s ease-in-out infinite;
}

@keyframes clMicPulse {

    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4);
    }

    50% {
        box-shadow: 0 0 0 14px rgba(239, 68, 68, 0);
    }
}

.cl-mic-transcript {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-style: italic;
    text-align: center;
    min-height: 1.4em;
}

.cl-mic-stop-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 18px;
    border-radius: 20px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-muted);
    font-family: 'Poppins', sans-serif;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.cl-mic-stop-btn:hover {
    border-color: #ef4444;
    color: #ef4444;
    background: rgba(239, 68, 68, 0.08);
}

/* ── ÁREA ESCRITURA ── */
.escritura-area {
    background: rgba(26, 35, 50, 0.85);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px 24px;
    backdrop-filter: blur(16px);
}

.escritura-prompt {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.escritura-prompt strong {
    color: var(--primary-light);
}

.escritura-input {
    width: 100%;
    padding: 12px 16px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--bg-darker);
    color: var(--text-primary);
    font-size: 1rem;
    resize: none;
    height: 64px;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
    outline: none;
}

.escritura-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.escritura-input.correct {
    border-color: #4CAF50;
    background: rgba(76, 175, 80, 0.06);
}

.escritura-input.wrong {
    border-color: #E53935;
    background: rgba(229, 57, 53, 0.06);
}

.escritura-feedback {
    display: none;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border-radius: 10px;
    font-size: 0.8125rem;
    margin-top: 10px;
}

.escritura-feedback.show {
    display: flex;
}

.escritura-feedback.correct {
    background: rgba(76, 175, 80, 0.1);
    border: 1px solid rgba(76, 175, 80, 0.3);
    color: #69db7c;
}

.escritura-feedback.wrong {
    background: rgba(229, 57, 53, 0.1);
    border: 1px solid rgba(229, 57, 53, 0.3);
    color: #ff7070;
}

.escritura-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 12px;
    flex-wrap: wrap;
    gap: 8px;
}

.btn-ver-resp {
    font-size: 0.75rem;
    color: var(--text-muted);
    background: none;
    border: none;
    cursor: pointer;
    text-decoration: underline;
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
}

.btn-ver-resp:hover {
    color: var(--primary-light);
}

.escritura-nav {
    display: flex;
    gap: 8px;
}

.btn-prev-ej,
.btn-next-ej {
    font-size: 0.875rem;
    padding: 9px 20px;
    border-radius: 12px;
    cursor: pointer;
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}

.btn-prev-ej {
    background: var(--bg-darker);
    border: 1px solid var(--border);
    color: var(--text-secondary);
}

.btn-prev-ej:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.btn-next-ej {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border: none;
    color: #fff;
    box-shadow: var(--shadow-primary);
}

.btn-next-ej:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(74, 144, 217, 0.4);
}

/* ── TABLA DE FORMAS ── */
.tabla-wrap {
    background: rgba(26, 35, 50, 0.85);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px 24px;
    backdrop-filter: blur(16px);
    overflow-x: auto;
}

.tabla-titulo {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 14px;
}

.tabla-formas {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.tabla-formas th {
    text-align: left;
    padding: 8px 12px;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
}

.tabla-formas td {
    padding: 10px 12px;
    border-bottom: 1px solid rgba(74, 144, 217, 0.06);
    color: var(--text-secondary);
}

.tabla-formas tr:last-child td {
    border-bottom: none;
}

.tabla-formas tr:hover td {
    background: var(--primary-glow);
}

.tabla-formas .td-pronoun {
    font-weight: 700;
    color: var(--text-primary);
}

.tabla-formas .td-forma {
    font-weight: 700;
    color: var(--primary-light);
    font-size: 1rem;
}

.tabla-formas .td-cont {
    font-style: italic;
    color: var(--text-muted);
}

/* ── EJERCICIOS ── */
.ejercicios-wrap {
    background: rgba(26, 35, 50, 0.85);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px 24px;
    backdrop-filter: blur(16px);
}

.ej-titulo {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.ej-instruccion {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: 18px;
}

.ej-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

.ej-item:last-child {
    border-bottom: none;
}

.ej-text {
    flex: 1;
    font-size: 0.9375rem;
    color: var(--text-primary);
}

.ej-text em {
    display: inline-block;
    min-width: 60px;
    border-bottom: 2px solid var(--primary);
    margin: 0 4px;
    text-align: center;
    font-style: normal;
    color: var(--primary-light);
}

.ej-input-blank {
    width: 100px;
    padding: 4px 10px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--bg-darker);
    color: var(--text-primary);
    font-size: 0.9375rem;
    font-family: 'Poppins', sans-serif;
    text-align: center;
    outline: none;
    transition: var(--transition);
}

.ej-input-blank:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-glow);
}

.ej-input-blank.correct {
    border-color: #4CAF50;
    color: #4CAF50;
}

.ej-input-blank.wrong {
    border-color: #E53935;
    color: #E53935;
}

.ej-check-icon {
    font-size: 1rem;
    width: 20px;
    text-align: center;
}

.btn-verificar-ej {
    margin-top: 16px;
    padding: 10px 24px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border: none;
    color: #fff;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    font-family: 'Poppins', sans-serif;
    box-shadow: var(--shadow-primary);
    transition: var(--transition);
}

.btn-verificar-ej:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(74, 144, 217, 0.4);
}

/* ── DIÁLOGO ── */
.dialogo-wrap {
    background: rgba(26, 35, 50, 0.85);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px 24px;
    backdrop-filter: blur(16px);
}

.dialogo-titulo {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.dialogo-desc {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.dialogo-linea {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    align-items: flex-start;
}

.dialogo-linea.right {
    flex-direction: row-reverse;
}

.dialogo-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.dialogo-linea.right .dialogo-avatar {
    background: linear-gradient(135deg, #4CAF50, #8BC34A);
}

.dialogo-bubble {
    max-width: 75%;
    background: var(--bg-darker);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 10px 14px;
}

.dialogo-linea.right .dialogo-bubble {
    background: var(--primary-glow);
    border-color: var(--border-hover);
}

.dialogo-en {
    font-size: 0.9375rem;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.dialogo-es {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-style: italic;
}

.dialogo-persona {
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 4px;
}

/* ── ERRORES COMUNES ── */
.errores-wrap {
    background: rgba(26, 35, 50, 0.85);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px 24px;
    backdrop-filter: blur(16px);
}

.error-item {
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
}

.error-item:last-child {
    border-bottom: none;
}

.error-wrong {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9375rem;
    color: #ff7070;
    margin-bottom: 6px;
    text-decoration: line-through;
    opacity: 0.8;
}

.error-correct {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9375rem;
    color: #69db7c;
    margin-bottom: 4px;
}

.error-exp {
    font-size: 0.75rem;
    color: var(--text-muted);
    padding-left: 22px;
}

/* ── RESUMEN ── */
.resumen-wrap {
    background: rgba(26, 35, 50, 0.85);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px 24px;
    backdrop-filter: blur(16px);
}

.resumen-puntos {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.resumen-punto {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.resumen-num {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--primary-glow);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--primary-light);
    flex-shrink: 0;
}

/* ── VOCABULARIO ── */
.vocab-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 10px;
}

.vocab-item {
    background: var(--bg-darker);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 12px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
}

.vocab-item:hover {
    border-color: var(--border-hover);
    background: var(--primary-glow);
}

.vocab-en {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--primary-light);
    margin-bottom: 4px;
}

.vocab-es {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ── PANEL TEMA FLOTANTE ── */
.theme-panel-float {
    position: fixed;
    top: 68px;
    right: 24px;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 14px;
    width: 210px;
    box-shadow: var(--shadow-lg);
    z-index: 200;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.tpf-title {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.tpf-opt {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: 10px;
    cursor: pointer;
    border: 1px solid transparent;
    transition: var(--transition);
    background: none;
    width: 100%;
    text-align: left;
    font-family: 'Poppins', sans-serif;
    font-size: 0.75rem;
    color: var(--text-primary);
}

.tpf-opt:hover {
    background: var(--bg-darker);
}

.tpf-opt.active {
    border-color: var(--border-hover);
    background: var(--bg-darker);
}

.tpf-dots {
    display: flex;
    gap: 3px;
}

.tpf-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.tpf-check {
    margin-left: auto;
    color: var(--primary);
    font-size: 0.75rem;
    display: none;
}

.tpf-opt.active .tpf-check {
    display: block;
}

/* ══════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════ */
@media (max-width: 1024px) {
    .cl-layout {
        grid-template-columns: 220px 1fr;
    }
}

/* ≤900px — sidebar oculto, FAB visible, breadcrumb oculto */
@media (max-width: 900px) {
    .cl-layout {
        grid-template-columns: 1fr;
        padding: 16px;
        min-height: unset;
        align-items: start;
        height: auto;
    }

    .cl-sidebar {
        display: none;
    }

    .cl-breadcrumb {
        display: none;
    }

    .cl-main {
        width: 100%;
        min-width: 0;
        overflow: visible;
        max-width: 100%;
    }

    .seccion-header,
    .tabla-wrap,
    .ejercicios-wrap,
    .usos-wrap,
    .dialogo-wrap,
    .errores-wrap,
    .vocab-wrap,
    .resumen-wrap {
        width: 100%;
        box-sizing: border-box;
        max-width: 100%;
    }

    .frase-en {
        font-size: 1.375rem;
    }

    .audio-controls {
        gap: 6px;
    }

    .ctrl-select {
        padding: 5px 8px;
    }

    /* Tabla scrolleable */
    .tabla-wrap {
        padding: 12px 10px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .tabla-formas {
        font-size: 0.78rem;
        min-width: 260px;
    }

    .tabla-formas th,
    .tabla-formas td {
        padding: 7px 8px;
        white-space: nowrap;
    }

    /* Tabla: reducir padding y ocultar columna ESPAÑOL */
    .tabla-wrap {
        padding: 14px 12px;
    }

    .tabla-formas {
        font-size: 0.8rem;
    }

    .tabla-formas th,
    .tabla-formas td {
        padding: 8px 6px;
    }

    .tabla-formas .td-espanol,
    .tabla-formas th:last-child,
    .tabla-formas td:last-child {
        display: none;
    }

    /* Fix: layout no debe cortar el contenido en móvil */
    .cl-layout {
        min-height: unset;
        align-items: start;
    }
}

/* ≤600px — nav en 2 filas (igual que verbos) */
@media (max-width: 600px) {

    /* ── Barra progreso: badge-time y btn-lista bajan a 2ª fila ── */
    .cl-progress-bar-wrap {
        padding: 8px 12px;
    }

    .cl-progress-bar-inner {
        flex-wrap: wrap;
        gap: 4px 8px;
    }

    .cl-prog-info {
        order: 1;
        font-size: 0.6875rem;
    }

    .cl-prog-track {
        order: 2;
        flex: 1;
        min-width: 60px;
    }

    .badge-nivel {
        order: 3;
    }

    .badge-cat {
        display: none;
    }

    .badge-time {
        order: 4;
        margin-left: 0;
    }

    .cl-btn-cambiar {
        order: 5;
        margin-left: auto;
    }

    /* ── Nav en 2 filas ── */
    .cl-nav-inner {
        padding: 8px 12px;
        height: auto;
        flex-wrap: wrap;
        gap: 4px;
    }

    .cl-nav-left {
        width: 100%;
        order: 1;
        overflow: hidden;
        min-width: 0;
    }

    .cl-logo {
        font-size: 0.875rem;
        flex-shrink: 0;
    }

    .cl-breadcrumb {
        display: none;
    }

    .cl-nav-right {
        width: 100%;
        order: 2;
        justify-content: flex-end;
        gap: 7px;
        padding: 4px 0 6px;
    }

    .nav-plan-free {
        font-size: 0.6875rem;
        padding: 3px 8px;
        gap: 4px;
    }

    .nav-plan-premium {
        font-size: 0.6875rem;
        padding: 3px 8px;
    }

    .fs-btn {
        padding: 2px 7px;
    }

    #navUser {
        display: none;
    }
}

@media (max-width: 480px) {
    .modo-btns {
        gap: 6px;
    }

    .modo-btn {
        font-size: 0.75rem;
        padding: 6px 12px;
    }

    .vocab-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 380px) {
    .nav-plan-free {
        display: none;
    }
}

/* ── FIX COMBOS SELECT ── */
.ctrl-select select option {
    background: var(--bg-dark);
    color: var(--text-primary);
}

select option {
    background: #1a2332;
    color: #ffffff;
}

/* ── BOTÓN PLAY ALL ── */
.btn-play-all {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-glow);
    border: 1px solid var(--border-hover);
    color: var(--primary-light);
    font-size: 0.875rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    flex-shrink: 0;
}

.btn-play-all:hover {
    background: var(--primary);
    color: #fff;
    transform: scale(1.08);
}

/* ── BOTÓN LOOP ── */
.btn-play-loop {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-glow);
    border: 1px solid var(--border-hover);
    color: var(--primary-light);
    font-size: 0.875rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    flex-shrink: 0;
}

.btn-play-loop:hover {
    background: var(--primary);
    color: #fff;
    transform: scale(1.08);
}

.btn-play-loop.loop-active {
    background: #FFD700;
    color: #0f1923;
    border-color: #FFD700;
    animation: pulseLoop 1.5s ease-in-out infinite;
}

@keyframes pulseLoop {

    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(255, 215, 0, 0.4);
    }

    50% {
        box-shadow: 0 0 0 8px rgba(255, 215, 0, 0);
    }
}

/* ── FADE IN FRASE ── */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── TOOLTIPS botones audio ── */
.btn-play[title],
.btn-play-all[title],
.btn-play-loop[title] {
    position: relative;
}

/* ── BOTONES NAV EJEMPLO < > ── */
.btn-nav-ej {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-darker);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    flex-shrink: 0;
}

.btn-nav-ej:hover {
    background: var(--primary-glow);
    border-color: var(--border-hover);
    color: var(--primary-light);
    transform: scale(1.08);
}

.btn-nav-ej:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* ── FRASE DE ÁNIMO (modo escritura) ── */
.frase-animo {
    font-size: 1rem;
    color: var(--primary-light);
    font-weight: 500;
    margin-bottom: 8px;
    padding: 12px 20px;
    background: var(--primary-glow);
    border: 1px dashed var(--border-hover);
    border-radius: 12px;
    animation: fadeIn 0.4s ease;
    line-height: 1.5;
}

/* ── MODAL PREMIUM ── */
.premium-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(6px);
    z-index: 9999;
    align-items: center;
    justify-content: center;
}

.premium-overlay.show {
    display: flex;
}

.premium-modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 40px 36px;
    max-width: 420px;
    width: 90%;
    text-align: center;
    animation: fadeIn 0.3s ease;
}

.premium-modal-icon {
    font-size: 3rem;
    margin-bottom: 12px;
}

.premium-modal h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.premium-modal p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 20px;
}

.premium-modal p strong {
    color: var(--primary-light);
}

.premium-modal-perks {
    list-style: none;
    text-align: left;
    margin: 0 auto 24px;
    display: inline-block;
}

.premium-modal-perks li {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.premium-modal-perks li i {
    color: #2ecc71;
    font-size: 0.85rem;
}

.btn-premium-upgrade {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    color: #fff;
    font-weight: 700;
    font-size: 1rem;
    padding: 14px 32px;
    border-radius: 12px;
    text-decoration: none;
    margin-bottom: 12px;
    transition: var(--transition);
    width: 100%;
    justify-content: center;
}

.btn-premium-upgrade:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
}

.btn-premium-back {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.85rem;
    padding: 10px 20px;
    border-radius: 10px;
    cursor: pointer;
    width: 100%;
    transition: var(--transition);
}

.btn-premium-back:hover {
    border-color: var(--border-hover);
    color: var(--text-secondary);
}

/* ── BADGE PLAN EN NAV ── */
.cl-nav-plan {
    display: flex;
    align-items: center;
}

.nav-plan-free {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 6px 14px;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
    white-space: nowrap;
}

.nav-plan-free i {
    color: #f59e0b;
    font-size: 0.85rem;
    margin-right: 2px;
}

.nav-upgrade-link {
    color: var(--primary-light);
    font-weight: 700;
    text-decoration: none;
    font-size: 0.8rem;
    transition: var(--transition);
    border-left: 1px solid var(--border-hover);
    padding-left: 10px;
    margin-left: 4px;
}

.nav-upgrade-link:hover {
    color: #fff;
}

.nav-plan-premium {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(135deg, #f59e0b22, #f59e0b11);
    border: 1px solid #f59e0b55;
    border-radius: 20px;
    padding: 6px 14px;
    font-size: 0.8rem;
    color: #f59e0b;
    font-weight: 700;
    white-space: nowrap;
}

.nav-plan-premium i {
    font-size: 0.75rem;
}

/* ══════════════════════════════════════════════
   FAB — Botón flotante "Clases" (solo móvil ≤900px)
══════════════════════════════════════════════ */
.cl-fab-clases {
    display: none;
}

@media (max-width: 900px) {
    .cl-fab-clases {
        display: flex;
        align-items: center;
        gap: 8px;
        position: fixed;
        bottom: 24px;
        left: 50%;
        transform: translateX(-50%);
        z-index: 300;
        background: var(--primary, #4A90D9);
        color: #fff;
        border: none;
        border-radius: 50px;
        padding: 14px 24px;
        font-family: 'Poppins', sans-serif;
        font-size: 0.9375rem;
        font-weight: 700;
        cursor: pointer;
        box-shadow: 0 6px 28px rgba(74, 144, 217, 0.55);
        transition: transform 0.18s ease, box-shadow 0.18s ease, opacity 0.18s ease;
        white-space: nowrap;
    }

    .cl-fab-clases:hover {
        transform: translateX(-50%) translateY(-2px);
        box-shadow: 0 10px 36px rgba(74, 144, 217, 0.65);
    }

    .cl-fab-clases i {
        font-size: 1rem;
    }

    .cl-fab-clases.hidden {
        opacity: 0;
        pointer-events: none;
        transform: translateX(-50%) translateY(12px);
    }

    .cl-fab-clases.cl-fab-gone {
        display: none !important;
    }
}

/* ── Botón cambiar clase — visible en todos los tamaños ── */
.cl-btn-cambiar {
    display: none;
    /* se activa por JS al cargar clase */
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--primary-glow);
    color: var(--primary-light);
    cursor: pointer;
    font-size: 0.875rem;
    transition: var(--transition);
    margin-left: auto;
}

.cl-btn-cambiar:hover {
    border-color: var(--border-hover);
    background: rgba(74, 144, 217, 0.18);
}

.cl-fab-badge {
    background: rgba(255, 255, 255, 0.22);
    border-radius: 20px;
    padding: 1px 8px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* ══════════════════════════════════════════════
   BOTTOM SHEET — Lista de clases en móvil
══════════════════════════════════════════════ */
.cl-sheet-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 400;
    backdrop-filter: blur(3px);
    opacity: 0;
    transition: opacity 0.28s ease;
}

.cl-sheet-backdrop.active {
    opacity: 1;
}

.cl-bottom-sheet {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 401;
    background: var(--bg-dark, #1a2332);
    border-radius: 22px 22px 0 0;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    max-height: 88vh;
    transform: translateY(100%);
    transition: transform 0.32s cubic-bezier(0.32, 0.72, 0, 1);
    overflow: hidden;
}

.cl-bottom-sheet.active {
    transform: translateY(0);
}

.cl-sheet-handle {
    width: 44px;
    height: 5px;
    background: rgba(255, 255, 255, 0.18);
    border-radius: 10px;
    margin: 12px auto 8px;
    flex-shrink: 0;
}

.cl-sheet-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 4px 18px 14px;
    flex-shrink: 0;
    border-bottom: 1px solid var(--border);
}

.cl-sheet-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
}

.cl-sheet-title i {
    color: var(--primary-light, #7ab8f5);
}

.cl-sheet-badge {
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--primary-light);
    background: var(--primary-glow);
    border: 1px solid var(--border-hover);
    border-radius: 20px;
    padding: 2px 8px;
}

.cl-sheet-close {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid var(--border);
    color: var(--text-muted);
    border-radius: 50%;
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.875rem;
    transition: var(--transition);
}

.cl-sheet-close:hover {
    background: rgba(255, 255, 255, 0.12);
    color: var(--text-primary);
}

.cl-sheet-search {
    padding: 12px 16px 8px;
    flex-shrink: 0;
}

.cl-search-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 8px 12px;
    transition: var(--transition);
}

.cl-search-wrap:focus-within {
    border-color: var(--border-hover);
}

.cl-search-wrap i {
    color: var(--text-muted);
    font-size: 0.8125rem;
    flex-shrink: 0;
}

.cl-search-wrap input {
    flex: 1;
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-size: 0.875rem;
    font-family: 'Poppins', sans-serif;
    outline: none;
}

.cl-search-wrap input::placeholder {
    color: var(--text-muted);
}

.cl-sheet-list {
    flex: 1;
    overflow-y: auto;
    padding: 6px 10px 32px;
}

.cl-sheet-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: 12px;
    cursor: pointer;
    transition: background 0.15s ease;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.cl-sheet-item:hover {
    background: rgba(74, 144, 217, 0.08);
}

.cl-sheet-item.active {
    background: rgba(74, 144, 217, 0.15);
}

.cl-sheet-item.locked {
    opacity: 0.45;
}

.cl-si-num {
    font-size: 0.6875rem;
    font-weight: 700;
    color: var(--text-muted);
    min-width: 26px;
    text-align: right;
    flex-shrink: 0;
}

.cl-sheet-item.active .cl-si-num {
    color: var(--primary-light);
}

.cl-si-body {
    flex: 1;
    min-width: 0;
}

.cl-si-nivel {
    display: inline-block;
    font-size: 0.625rem;
    font-weight: 700;
    padding: 1px 6px;
    border-radius: 6px;
    background: var(--primary-glow);
    color: var(--primary-light);
    border: 1px solid var(--border-hover);
    margin-bottom: 3px;
}

.cl-si-tema {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cl-sheet-item.active .cl-si-tema {
    color: var(--primary-light);
}

.cl-si-cat {
    font-size: 0.6875rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cl-si-lock {
    color: var(--text-muted);
    font-size: 0.75rem;
    flex-shrink: 0;
}

/* ══════════════════════════════════════════════
   ACORDEÓN MÓVIL — Secciones colapsables
══════════════════════════════════════════════ */
.ac-item {
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
    background: rgba(26, 35, 50, 0.85);
    transition: border-color 0.2s ease;
}

.ac-item.ac-open {
    border-color: var(--border-hover);
}

.ac-header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    background: none;
    border: none;
    cursor: pointer;
    font-family: 'Poppins', sans-serif;
    text-align: left;
    gap: 12px;
}

.ac-label {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
}

.ac-item.ac-open .ac-label {
    color: var(--primary-light);
}

.ac-icon {
    color: var(--text-muted);
    font-size: 0.75rem;
    flex-shrink: 0;
    transition: transform 0.25s ease;
}

.ac-item.ac-open .ac-icon {
    transform: rotate(180deg);
    color: var(--primary-light);
}

.ac-body {
    padding: 0 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.ac-body .seccion-header {
    margin-bottom: 4px;
}

/* Separador entre header y body */
.ac-item.ac-open .ac-header {
    border-bottom: 1px solid var(--border);
    padding-bottom: 12px;
}