/* =============================================
   ENGLISH ACADEMY RVN — snippets.css
   Módulo: Snippets (frases cortas profesionales)
   Prefijo: .sn-
   ============================================= */

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

/* ══════════════════════════════════════════════
   NAV
══════════════════════════════════════════════ */
.sn-nav {
    position: sticky;
    top: 0;
    z-index: 200;
    background: rgba(9, 14, 22, 0.96);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(20px);
}

.sn-nav-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
    gap: 16px;
}

.sn-nav-left {
    display: flex;
    align-items: center;
    gap: 16px;
    min-width: 0;
}

.sn-logo {
    font-size: 0.9375rem;
    font-weight: 800;
    color: var(--text-primary);
    white-space: nowrap;
    flex-shrink: 0;
    text-decoration: none;
}
.sn-logo span { color: var(--primary-light); }

.sn-breadcrumb {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    color: var(--text-muted);
}
.sn-breadcrumb a { color: var(--text-muted); text-decoration: none; transition: var(--transition); }
.sn-breadcrumb a:hover { color: var(--primary-light); }
.sn-breadcrumb i { font-size: 0.5625rem; }
.sn-breadcrumb .active { color: var(--text-secondary); }

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

/* Plan badge */
.sn-nav-plan { display: flex; align-items: center; gap: 8px; }
.nav-plan-free {
    display: flex; align-items: center; gap: 6px;
    font-size: 0.75rem; color: var(--text-muted);
    background: rgba(74,144,217,.08);
    border: 1px solid var(--border);
    border-radius: 20px; padding: 4px 12px;
}
.nav-upgrade-link {
    color: var(--primary-light); font-weight: 600;
    text-decoration: none; transition: var(--transition);
}
.nav-upgrade-link:hover { color: var(--text-primary); }
.nav-plan-premium {
    display: none; align-items: center; gap: 6px;
    font-size: 0.75rem; font-weight: 700;
    color: var(--premium-gold);
    background: rgba(255,215,0,.08);
    border: 1px solid rgba(255,215,0,.2);
    border-radius: 20px; padding: 4px 12px;
}

/* Font switcher */
.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: 3px 9px; border-radius: 7px; border: none;
    background: transparent; color: var(--text-muted);
    cursor: pointer; transition: var(--transition);
    font-family: 'Poppins', sans-serif;
}
.fs-btn:nth-child(1) { font-size: 0.75rem; }
.fs-btn:nth-child(2) { font-size: 0.9375rem; }
.fs-btn:nth-child(3) { font-size: 1.125rem; }
.fs-btn.active, .fs-btn:hover {
    background: var(--primary-glow);
    color: var(--primary-light);
}

/* Theme btn */
.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);
    transition: var(--transition); position: relative;
}
.theme-dot-nav:hover { color: var(--primary-light); border-color: var(--border-hover); }

/* Theme panel flotante */
.theme-panel-float {
    display: none; flex-direction: column; gap: 4px;
    position: fixed; top: 68px; right: 16px; z-index: 300;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 16px; padding: 10px;
    box-shadow: var(--shadow-lg);
    min-width: 160px;
}
.tpf-opt {
    display: flex; align-items: center; gap: 10px;
    padding: 8px 12px; border-radius: 10px; border: none;
    background: transparent; color: var(--text-secondary);
    cursor: pointer; font-size: 0.8125rem;
    font-family: 'Poppins', sans-serif;
    transition: var(--transition); text-align: left;
}
.tpf-opt:hover, .tpf-opt.active {
    background: var(--primary-glow);
    color: var(--primary-light);
}
.tpf-dot {
    width: 14px; height: 14px;
    border-radius: 50%; flex-shrink: 0;
}

/* Usuario */
.sn-user-chip {
    display: flex; align-items: center; gap: 8px;
    background: var(--bg-dark); border: 1px solid var(--border);
    border-radius: 20px; padding: 4px 12px 4px 4px;
    text-decoration: none; transition: var(--transition);
    font-size: 0.8125rem; color: var(--text-secondary);
}
.sn-user-chip:hover { border-color: var(--border-hover); color: var(--primary-light); }
.sn-avatar {
    width: 26px; height: 26px; border-radius: 50%;
    background: var(--primary-glow); border: 1px solid var(--border-hover);
    display: flex; align-items: center; justify-content: center;
    font-size: 0.75rem; font-weight: 700; color: var(--primary-light);
}
.sn-logout {
    width: 34px; height: 34px; border-radius: 10px;
    background: transparent; border: 1px solid var(--border);
    color: var(--text-muted); cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.875rem; transition: var(--transition);
}
.sn-logout:hover { background: rgba(229,57,53,.08); color: #ff7070; border-color: rgba(229,57,53,.3); }

/* ══════════════════════════════════════════════
   DATA-FONT helpers
══════════════════════════════════════════════ */
[data-font="chica"]  { --sn-font-phrase: 1rem;    --sn-font-when: 0.875rem; }
[data-font="mediana"]{ --sn-font-phrase: 1.125rem; --sn-font-when: 1rem;     }
[data-font="grande"] { --sn-font-phrase: 1.3125rem;--sn-font-when: 1.125rem; }

/* ══════════════════════════════════════════════
   LAYOUT — sidebar + main
══════════════════════════════════════════════ */
.sn-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    min-height: calc(100vh - 60px);
    max-width: 1400px;
    margin: 0 auto;
}

/* ── SIDEBAR ── */
.sn-sidebar {
    background: var(--bg-dark);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: sticky;
    top: 60px;
    height: calc(100vh - 60px);
}

.sn-sidebar-header {
    padding: 16px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.sn-sidebar-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}
.sn-sidebar-title i { color: var(--primary-light); }

.sn-total-badge {
    margin-left: auto;
    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;
}

.sn-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);
}
.sn-search-wrap:focus-within { border-color: var(--border-hover); }
.sn-search-wrap i { color: var(--text-muted); font-size: 0.8125rem; flex-shrink: 0; }
.sn-search-wrap input {
    flex: 1; border: none; background: transparent;
    color: var(--text-primary); font-size: 0.875rem;
    font-family: 'Poppins', sans-serif; outline: none;
}
.sn-search-wrap input::placeholder { color: var(--text-muted); }

.sn-topic-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
}
.sn-topic-list::-webkit-scrollbar { width: 4px; }
.sn-topic-list::-webkit-scrollbar-track { background: transparent; }
.sn-topic-list::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

.sn-loading {
    display: flex; flex-direction: column; align-items: center;
    gap: 12px; padding: 40px 20px;
    color: var(--text-muted); font-size: 0.875rem;
}

/* Item de la lista de topics */
.sn-topic-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 10px;
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
    position: relative;
}
.sn-topic-item:hover {
    background: var(--primary-glow);
    border-color: var(--border);
}
.sn-topic-item.active {
    background: var(--primary-glow);
    border-color: var(--border-hover);
}
.sn-topic-item.locked {
    opacity: 0.45;
    cursor: default;
}
.sn-topic-item.locked:hover {
    background: transparent;
    border-color: transparent;
}

.sn-ti-num {
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--text-muted);
    min-width: 28px;
    text-align: right;
    flex-shrink: 0;
}
.sn-ti-body { flex: 1; min-width: 0; }
.sn-ti-topic {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.sn-ti-cat {
    font-size: 0.6875rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.sn-ti-level {
    font-size: 0.625rem;
    font-weight: 700;
    color: var(--primary-light);
    background: var(--primary-glow);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 1px 6px;
    flex-shrink: 0;
    white-space: nowrap;
}
.sn-ti-lock {
    font-size: 0.6875rem;
    color: var(--text-muted);
    flex-shrink: 0;
}

/* ── Resume banner ── */
.sn-resume-banner {
    display: flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, rgba(74,144,217,0.15), rgba(74,144,217,0.08));
    border: 1px solid rgba(74,144,217,0.35);
    border-radius: 10px;
    margin: 0 14px 10px;
    padding: 9px 12px;
    font-size: 0.8rem;
    color: var(--primary-light);
    animation: snBannerIn 0.4s ease;
}
.sn-resume-banner i { color: var(--primary); font-size: 0.875rem; flex-shrink: 0; }
.sn-resume-banner span {
    flex: 1; min-width: 0;
    overflow: hidden; text-overflow: ellipsis;
    white-space: nowrap; font-weight: 500;
}
.sn-resume-btn {
    background: var(--primary); color: #fff;
    border: none; border-radius: 6px;
    padding: 4px 11px; font-size: 0.775rem;
    font-weight: 600; cursor: pointer;
    flex-shrink: 0; font-family: 'Poppins', sans-serif;
    transition: opacity 0.2s;
}
.sn-resume-btn:hover { opacity: 0.85; }
@keyframes snBannerIn {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── MAIN ── */
.sn-main {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    overflow-y: auto;
}

/* Header del topic */
.sn-topic-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}
.sn-topic-name {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.5px;
    line-height: 1.2;
}
.sn-topic-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 4px;
    flex-wrap: wrap;
}
.sn-topic-cat {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}
.sn-topic-level {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--primary-light);
    background: var(--primary-glow);
    border: 1px solid var(--border-hover);
    border-radius: 8px;
    padding: 2px 8px;
}

.sn-topic-pills {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}
.sn-stat-pills {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}
.sn-stat-pill {
    font-size: 0.75rem;
    padding: 4px 12px;
    border-radius: 20px;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    background: var(--bg-dark);
    font-weight: 500;
}
.sn-stat-pill.accent {
    background: var(--primary-glow);
    color: var(--primary-light);
    border-color: var(--border-hover);
}
.sn-stat-pill.ok  { color: #69db7c; border-color: rgba(76,175,80,.3); background: rgba(76,175,80,.06); }
.sn-stat-pill.err { color: #ff7070; border-color: rgba(229,57,53,.3); background: rgba(229,57,53,.06); }

.sn-pill-topic {
    background: rgba(74,144,217,0.12) !important;
    border: 1px solid rgba(74,144,217,0.3) !important;
    color: var(--primary-light) !important;
    font-size: 0.72rem !important;
    gap: 5px;
    display: flex;
    align-items: center;
}
.sn-pill-topic i { color: var(--primary); font-size: 0.7rem; }

/* Botón cambiar topic — solo móvil */
.sn-btn-cambiar { display: none; }

/* ── PANEL DE CONTROLES ── */
.sn-controls-panel {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.sn-controls-row {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}
.sn-ctrl-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    white-space: nowrap;
    flex-shrink: 0;
}

/* Chips de cantidad */
.sn-chips { display: flex; gap: 6px; flex-wrap: wrap; }
.sn-chip {
    font-size: 0.8125rem;
    padding: 5px 14px;
    border-radius: 20px;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    background: transparent;
    cursor: pointer;
    transition: var(--transition);
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
}
.sn-chip:hover { border-color: var(--border-hover); color: var(--text-primary); }
.sn-chip.active {
    background: var(--primary-glow);
    color: var(--primary-light);
    border-color: var(--border-hover);
}

/* Chips de filtro Formal / Informal */
.sn-fchip {
    font-size: 0.75rem;
    padding: 4px 11px;
    border-radius: 20px;
    border: 1px solid var(--border);
    color: var(--text-muted);
    background: transparent;
    cursor: pointer;
    transition: var(--transition);
    font-family: 'Poppins', sans-serif;
}
.sn-fchip:hover { border-color: var(--border-hover); color: var(--text-secondary); }
.sn-fchip.on {
    background: var(--primary-glow);
    color: var(--primary-light);
    border-color: var(--border);
}

/* Widget topic activo */
.sn-controls-row-top {
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}
.sn-current-widget {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 2px;
    background: rgba(74,144,217,0.07);
    border: 1px solid rgba(74,144,217,0.25);
    border-radius: 12px;
    padding: 8px 16px;
    min-width: 180px;
    max-width: 340px;
    flex-shrink: 0;
}
.sn-cw-label {
    font-size: 0.68rem;
    font-weight: 600;
    color: var(--primary-light);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    display: flex; align-items: center; gap: 5px;
    opacity: 0.8;
}
.sn-cw-label i { font-size: 0.6rem; }
.sn-cw-topic {
    font-size: 1rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: 0.02em;
    line-height: 1.2;
    text-align: right;
    max-width: 280px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.sn-cw-cat {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-style: italic;
    line-height: 1.2;
    text-align: right;
}

.sn-audio-row {
    border-top: 1px solid var(--border);
    padding-top: 12px;
    flex-wrap: wrap;
    row-gap: 10px;
}
.sn-ctrl-group { display: flex; align-items: center; gap: 6px; }
.sn-ctrl-group select {
    font-size: 0.8125rem;
    padding: 5px 10px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--bg-input);
    color: var(--text-primary);
    font-family: 'Poppins', sans-serif;
    cursor: pointer;
    transition: var(--transition);
}
.sn-ctrl-group select:hover { border-color: var(--border-hover); }
.sn-ctrl-sep { width: 1px; height: 24px; background: var(--border); flex-shrink: 0; }

.sn-mode-toggle {
    display: flex;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    margin-left: auto;
}
.sn-mode-opt {
    font-size: 0.775rem;
    padding: 6px 11px;
    cursor: pointer;
    color: var(--text-muted);
    border: none;
    background: transparent;
    transition: var(--transition);
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    display: flex; align-items: center; gap: 5px;
    white-space: nowrap;
}
.sn-mode-opt:hover { color: var(--text-secondary); }
.sn-mode-opt.active {
    background: var(--primary-glow);
    color: var(--primary-light);
}
.sn-mode-mic.active {
    background: rgba(239,68,68,0.15) !important;
    color: #f87171 !important;
}

/* ── BARRA DE PROGRESO ── */
.sn-progress-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
}
.sn-prog-bar {
    flex: 1; height: 4px;
    background: var(--border);
    border-radius: 4px; overflow: hidden;
}
.sn-prog-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 4px;
    transition: width 0.4s ease;
    width: 0%;
}
.sn-prog-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    white-space: nowrap;
    font-weight: 600;
}

/* ══════════════════════════════════════════════
   CARD STACK
══════════════════════════════════════════════ */
.sn-card-area { display: flex; flex-direction: column; gap: 16px; }

.sn-card-stack {
    position: relative;
    min-height: 240px;
}

.sn-card-bg {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 32px);
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    pointer-events: none;
}
.sn-card-bg1 { bottom: -7px; height: 100%; z-index: 1; }
.sn-card-bg2 { bottom: -14px; width: calc(100% - 56px); height: 100%; z-index: 0; opacity: .5; }

.sn-main-card {
    position: relative; z-index: 2;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    display: flex; flex-direction: column; gap: 14px;
    transition: transform 0.12s ease, box-shadow 0.2s ease;
    box-shadow: 0 4px 24px rgba(0,0,0,.3);
}
.sn-main-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}
.sn-main-card.flip { animation: snFlip 0.32s ease; }
@keyframes snFlip {
    0%   { opacity: 1; transform: scale(1); }
    45%  { opacity: 0; transform: scale(0.96) translateY(-4px); }
    55%  { opacity: 0; transform: scale(0.96) translateY(-4px); }
    100% { opacity: 1; transform: scale(1); }
}

/* Banner topic activo en card */
.sn-card-topic-banner {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px 10px;
    border-bottom: 1px solid rgba(255,255,255,0.07);
    margin-bottom: 2px;
    background: rgba(74,144,217,0.05);
    border-radius: 6px 6px 0 0;
}
.sn-card-topic-name {
    font-size: 0.875rem;
    font-weight: 800;
    color: var(--primary-light);
    letter-spacing: 0.04em;
}
.sn-card-topic-sep {
    color: rgba(255,255,255,0.2);
    font-size: 1rem;
    font-weight: 300;
}
.sn-card-topic-cat {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.45);
    font-style: italic;
}

/* Cabecera de carta */
.sn-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}
.sn-card-situation {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--text-muted);
    font-weight: 600;
    line-height: 1.4;
    flex: 1;
}
.sn-card-counter {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
    white-space: nowrap;
    flex-shrink: 0;
}

.sn-card-body { display: flex; flex-direction: column; gap: 12px; }

/* Frase principal en inglés */
.sn-card-phrase {
    font-size: var(--sn-font-phrase, 1.125rem);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.5;
}

/* Frase de referencia (modo Esc-Mos) */
.sn-card-phrase-ref {
    font-size: var(--sn-font-phrase, 1.125rem);
    font-weight: 700;
    color: var(--primary-light);
    line-height: 1.5;
    background: var(--primary-glow);
    border: 1px solid color-mix(in srgb, var(--primary) 30%, transparent);
    border-radius: 8px;
    padding: 8px 12px;
}

/* When to use — texto español */
.sn-card-when {
    font-size: var(--sn-font-when, 1rem);
    color: var(--text-secondary);
    line-height: 1.5;
    font-weight: 500;
    font-style: italic;
}

.sn-card-animo {
    font-size: 0.9375rem;
    font-style: italic;
    color: var(--text-secondary);
    line-height: 1.5;
}

.sn-card-divider {
    height: 1px;
    background: var(--border);
    border-radius: 1px;
}

/* Área escritura */
.sn-escritura-area {
    display: flex; flex-direction: column; gap: 8px;
    border-top: 1px solid var(--border);
    padding-top: 12px;
}
.sn-esc-input {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 10px 14px;
    font-size: 0.9375rem;
    font-family: 'Poppins', sans-serif;
    color: var(--text-primary);
    resize: none; outline: none;
    transition: var(--transition);
    line-height: 1.5;
}
.sn-esc-input:focus { border-color: var(--border-hover); background: rgba(74,144,217,.04); }
.sn-esc-input.correct { border-color: rgba(76,175,80,.5); background: rgba(76,175,80,.06); }
.sn-esc-input.wrong   { border-color: rgba(229,57,53,.4); background: rgba(229,57,53,.05); }
.sn-esc-input:disabled { opacity: 0.8; cursor: default; }

.sn-esc-feedback {
    font-size: 0.8125rem;
    min-height: 20px;
    color: var(--text-muted);
    font-weight: 500;
    transition: var(--transition);
}
.sn-esc-feedback.show-correct { color: #69db7c; animation: fbIn 0.2s ease; }
.sn-esc-feedback.show-wrong   { color: #ff8080; animation: fbIn 0.2s ease; }
@keyframes fbIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

/* ── MODO ESC-MIC ── */
.sn-mic-area {
    display: flex; flex-direction: column;
    align-items: center; gap: 14px;
    padding-top: 4px;
    border-top: 1px solid var(--border);
}
.sn-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);
}
.sn-mic-countdown span {
    font-size: 1.6rem; font-weight: 800;
    color: var(--primary-light); line-height: 1;
    font-variant-numeric: tabular-nums;
}
.sn-mic-btn {
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    gap: 8px; 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; flex-shrink: 0;
}
.sn-mic-btn i { font-size: 1.6rem; transition: color 0.2s; }
.sn-mic-btn:hover {
    border-color: var(--primary);
    color: var(--primary-light);
    background: var(--primary-glow);
}
.sn-mic-btn.listening {
    border-color: #ef4444; color: #ef4444;
    background: rgba(239,68,68,0.1);
    animation: micPulse 1.2s ease-in-out infinite;
}
@keyframes micPulse {
    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); }
}
.sn-mic-transcript {
    font-size: 0.9375rem; color: var(--text-secondary);
    font-style: italic; text-align: center;
    min-height: 1.4em; line-height: 1.4;
}

/* ── BOTONES NAVEGACIÓN ── */
.sn-nav-btns {
    display: flex; gap: 8px; align-items: center;
}
.sn-btn-nav {
    flex: 1; padding: 10px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-dark);
    color: var(--text-primary);
    font-size: 0.875rem;
    font-family: 'Poppins', sans-serif;
    font-weight: 500; cursor: pointer;
    transition: var(--transition);
    display: flex; align-items: center;
    justify-content: center; gap: 6px;
}
.sn-btn-nav:hover { background: var(--primary-glow); border-color: var(--border-hover); }
.sn-btn-nav:active { transform: scale(0.98); }
.sn-btn-primary {
    flex: 2;
    background: var(--primary-glow);
    border-color: var(--border-hover);
    color: var(--primary-light);
}
.sn-btn-primary:hover { background: rgba(74,144,217,.2); }
.sn-btn-auto { flex: 1; }
.sn-btn-auto.playing {
    background: rgba(76,175,80,.1);
    border-color: rgba(76,175,80,.3);
    color: #69db7c;
}
.sn-btn-autosig { flex: 1; }
.sn-btn-autosig.playing {
    background: rgba(76,175,80,.1);
    border-color: rgba(76,175,80,.3);
    color: #69db7c;
}
.sn-btn-reset {
    flex: 0; width: 44px; padding: 10px;
    color: var(--text-muted); transition: var(--transition);
}
.sn-btn-reset:hover {
    background: rgba(255,152,0,.08);
    border-color: rgba(255,152,0,.3);
    color: #FFB74D;
}
.sn-btn-reset i { transition: transform 0.4s ease; }
.sn-btn-reset:hover i { transform: rotate(-180deg); }
.sn-btn-audio { flex: 0; width: 44px; padding: 10px; }

/* ══════════════════════════════════════════════
   EMPTY STATE
══════════════════════════════════════════════ */
.sn-empty-state {
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    gap: 16px; padding: 80px 24px; text-align: center;
}
.sn-empty-icon {
    width: 80px; height: 80px; border-radius: 50%;
    background: var(--primary-glow);
    border: 1px solid var(--border-hover);
    display: flex; align-items: center; justify-content: center;
    font-size: 2rem; color: var(--primary-light);
}
.sn-empty-state h2 { font-size: 1.25rem; color: var(--text-primary); }
.sn-empty-state p { font-size: 0.9375rem; color: var(--text-muted); max-width: 340px; line-height: 1.6; }

/* ══════════════════════════════════════════════
   PREMIUM OVERLAY
══════════════════════════════════════════════ */
.sn-premium-overlay {
    display: none;
    position: fixed; inset: 0; z-index: 500;
    background: rgba(9, 14, 22, 0.85);
    backdrop-filter: blur(6px);
    align-items: center; justify-content: center;
}
.sn-premium-overlay.show { display: flex; }
.sn-premium-modal {
    background: var(--bg-dark);
    border: 1px solid rgba(255,215,0,.2);
    border-radius: var(--radius-xl);
    padding: 40px 36px; max-width: 420px;
    width: 90%; text-align: center;
    display: flex; flex-direction: column; gap: 18px;
    box-shadow: 0 24px 80px rgba(0,0,0,.6);
}
.sn-premium-icon {
    width: 72px; height: 72px; border-radius: 50%;
    background: rgba(255,215,0,.08);
    border: 1px solid rgba(255,215,0,.2);
    display: flex; align-items: center; justify-content: center;
    font-size: 2rem; color: var(--premium-gold);
    margin: 0 auto;
}
.sn-premium-modal h2 { font-size: 1.5rem; color: var(--text-primary); }
.sn-premium-modal p  { font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.6; }
.sn-premium-modal strong { color: var(--premium-gold); }
.sn-premium-features {
    display: flex; flex-direction: column; gap: 8px;
    text-align: left;
    background: rgba(74,144,217,.04);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 14px 18px;
}
.sn-pf-item {
    font-size: 0.875rem; color: var(--text-secondary);
    display: flex; align-items: center; gap: 10px;
}
.sn-pf-item i { color: var(--primary-light); font-size: 0.75rem; flex-shrink: 0; }
.sn-btn-premium {
    display: flex; align-items: center; justify-content: center; gap: 8px;
    padding: 14px 28px;
    background: linear-gradient(135deg, #FFD700, #FFA500);
    color: #1a1a00; font-weight: 700; font-size: 1rem;
    border-radius: var(--radius-md);
    text-decoration: none; transition: var(--transition);
    border: none; cursor: pointer;
    font-family: 'Poppins', sans-serif;
}
.sn-btn-premium:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(255,215,0,.3); }
.sn-btn-back {
    background: transparent; border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-muted); font-size: 0.875rem;
    padding: 10px; cursor: pointer;
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
}
.sn-btn-back:hover { color: var(--text-secondary); border-color: var(--border-hover); }

/* ══════════════════════════════════════════════
   RESPONSIVE — 900px (ocultar sidebar, mostrar FAB)
══════════════════════════════════════════════ */
@media (max-width: 900px) {
    .sn-layout { grid-template-columns: 1fr; }
    .sn-sidebar { display: none; }
    .sn-main { padding: 16px; }
    .sn-topic-name { font-size: 1.3rem; }
    .sn-breadcrumb { display: none; }
    .sn-nav-plan  { display: none !important; }
    #navUser      { display: none; }

    /* Mostrar botón fa-list en header para reabrir sheet */
    .sn-btn-cambiar {
        display: flex;
        align-items: center; justify-content: center;
        width: 36px; height: 36px; 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);
    }
    .sn-btn-cambiar:hover {
        border-color: var(--border-hover);
        background: rgba(74,144,217,0.18);
    }
    .sn-topic-pills {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 8px;
    }
    .sn-current-widget {
        align-items: flex-start;
        max-width: 100%;
        width: 100%;
    }
}

/* ══════════════════════════════════════════════
   FAB — Botón flotante "Snippets" (solo ≤900px)
══════════════════════════════════════════════ */
.sn-fab-topics { display: none; }

@media (max-width: 900px) {
    .sn-fab-topics {
        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;
    }
    .sn-fab-topics:hover {
        transform: translateX(-50%) translateY(-2px);
        box-shadow: 0 10px 36px rgba(74,144,217,0.65);
    }
    .sn-fab-topics i { font-size: 1rem; }
    .sn-fab-topics.hidden {
        opacity: 0;
        pointer-events: none;
        transform: translateX(-50%) translateY(12px);
    }
    .sn-fab-topics.sn-fab-gone { display: none !important; }
}

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

/* ══════════════════════════════════════════════
   BOTTOM SHEET
══════════════════════════════════════════════ */
.sn-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;
}
.sn-sheet-backdrop.active { opacity: 1; }

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

.sn-sheet-handle {
    width: 44px; height: 5px;
    background: rgba(255,255,255,0.18);
    border-radius: 10px;
    margin: 12px auto 8px; flex-shrink: 0;
}
.sn-sheet-header {
    display: flex; align-items: center;
    justify-content: space-between;
    padding: 4px 18px 14px; flex-shrink: 0;
    border-bottom: 1px solid var(--border);
}
.sn-sheet-title {
    display: flex; align-items: center; gap: 8px;
    font-size: 1.125rem; font-weight: 700;
    color: var(--text-primary);
}
.sn-sheet-title i { color: var(--primary-light); font-size: 1rem; }
.sn-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);
}
.sn-sheet-close:hover { background: rgba(255,255,255,0.12); color: var(--text-primary); }
.sn-sheet-search {
    padding: 12px 16px 10px; flex-shrink: 0;
}
.sn-sheet-resume {
    margin: 0 16px 8px !important;
}
.sn-sheet-list {
    flex: 1; overflow-y: auto;
    padding: 4px 8px 32px;
}
.sn-sheet-list .sn-topic-item {
    padding: 13px 14px;
    border-radius: 12px;
    margin-bottom: 4px;
}
.sn-sheet-list .sn-ti-topic { font-size: 1rem; }
.sn-sheet-list .sn-ti-cat   { font-size: 0.8125rem; }

/* ══════════════════════════════════════════════
   RESPONSIVE — 600px (nav 2 filas)
══════════════════════════════════════════════ */
@media (max-width: 600px) {
    .sn-nav-inner {
        padding: 8px 12px;
        height: auto;
        flex-wrap: wrap;
        gap: 4px;
    }
    .sn-nav-left {
        width: 100%;
        order: 1;
    }
    .sn-logo { font-size: 0.875rem; }
    .sn-breadcrumb { display: none; }
    .sn-nav-right {
        width: 100%;
        order: 2;
        justify-content: flex-end;
        gap: 7px;
    }
    .fs-btn { padding: 2px 7px; }

    .sn-main { padding: 12px; gap: 14px; }
    .sn-controls-panel { padding: 12px; }
    .sn-main-card { padding: 16px; }
    .sn-stat-pills { gap: 6px; }
    .sn-pill-topic { display: none; }

    .sn-nav-btns { gap: 6px; flex-wrap: wrap; }
    #btnPrev    { flex: 1; order: 1; }
    #btnNext    { flex: 2; order: 2; }
    #btnAuto    { flex: 1; order: 3; }
    #btnAutoSig { flex: 1; order: 4; font-size: 0.75rem; padding: 9px 6px; }
    #btnReset   { order: 5; }
    #btnAudio   { order: 6; }
    .sn-btn-nav { padding: 9px 10px; font-size: 0.8125rem; }

    .sn-resume-banner { margin: 0 10px 8px; padding: 8px 10px; font-size: 0.75rem; }
    .sn-card-topic-banner { padding: 6px 12px 8px; gap: 6px; }
    .sn-card-topic-name { font-size: 0.8rem; }
    .sn-card-topic-cat  { font-size: 0.75rem; }
}

@media (max-width: 380px) {
    .sn-logo { font-size: 0.8125rem; }
}