:root {
    --lqv-teal: #0ea5e9;
    --lqv-green: #10b981;
    --lqv-navy: #1e3a5f;
    --lqv-ink: #0b1220;
    --lqv-paper: #e8f4ff;
    --lqv-muted: #9bb6d0;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
    height: 100%;
}

.oculto {
    display: none !important;
}

.lqv-keep-audio {
    position: fixed;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

.lqv-body {
    font-family: Outfit, system-ui, sans-serif;
    color: var(--lqv-paper);
    background: #07101c;
    overflow: hidden;
}

.lqv-app,
.lqv-canvas {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
}

.lqv-canvas {
    display: block;
    z-index: 1;
    touch-action: none;
}

.lqv-landing {
    position: fixed;
    z-index: 40;
    inset: 0;
    overflow: auto;
    padding: 1.25rem 1.25rem 2.5rem;
    background:
        linear-gradient(180deg, rgba(7, 16, 28, 0.78), rgba(7, 16, 28, 0.94)),
        radial-gradient(ellipse at top, rgba(14, 165, 233, 0.28), transparent 55%);
}

.lqv-app.is-playing .lqv-landing {
    display: none;
}

.lqv-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.lqv-logo-edumedia {
    height: 76px;
    width: auto;
    max-width: min(340px, 62vw);
    object-fit: contain;
    background: #fff;
    border-radius: 14px;
    padding: 0.5rem 0.9rem;
}

.lqv-back {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--lqv-muted);
    text-decoration: none;
}

.lqv-kicker {
    margin: 1.4rem 0 0.35rem;
    color: var(--lqv-teal);
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    font-size: 0.78rem;
}

.lqv-landing h1 {
    margin: 0;
    font-family: Fredoka, Outfit, sans-serif;
    font-size: clamp(2rem, 6vw, 3.2rem);
    line-height: 1.1;
}

.lqv-lead {
    max-width: 40rem;
    color: var(--lqv-muted);
    line-height: 1.55;
}

.lqv-welcome {
    display: grid;
    grid-template-columns: minmax(16rem, 34rem) minmax(16rem, 22rem);
    gap: 1.1rem;
    align-items: start;
    max-width: 58rem;
    margin: 1rem 0 0.4rem;
}

.lqv-welcome__visual {
    margin: 0;
    border-radius: 0.9rem;
    overflow: hidden;
}

.lqv-welcome__visual img {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.lqv-welcome__card {
    padding: 1.1rem 1.15rem 1.25rem;
    border-radius: 1.1rem;
    background: rgba(15, 23, 42, 0.82);
    border: 1px solid rgba(148, 163, 184, 0.25);
}

.lqv-welcome__face {
    width: 5.4rem;
    height: 5.4rem;
    object-fit: cover;
    border-radius: 50%;
    border: 3px solid var(--lqv-teal);
}

.lqv-welcome__kicker,
.lqv-brief__kicker,
.lqv-ejercicio__kicker,
.lqv-info__kicker,
.lqv-controles__kicker {
    margin: 0 0 0.35rem;
    color: var(--lqv-green);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.lqv-welcome__card h2,
.lqv-controles h2,
.lqv-info h3,
.lqv-ejercicio h2 {
    margin: 0 0 0.45rem;
    font-family: Fredoka, Outfit, sans-serif;
}

.lqv-welcome__text,
.lqv-brief__steps,
.lqv-info p,
.lqv-ejercicio p {
    color: var(--lqv-muted);
    line-height: 1.5;
}

.lqv-mode-label {
    margin: 0.35rem 0 0.55rem;
    font-family: Fredoka, Outfit, sans-serif;
}

.lqv-modes {
    display: grid;
    gap: 0.65rem;
    margin: 0 0 0.75rem;
}

.lqv-mode {
    appearance: none;
    width: 100%;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 1rem;
    padding: 0.85rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    text-align: left;
    cursor: pointer;
    color: #062032;
    background: linear-gradient(135deg, var(--lqv-teal), var(--lqv-green));
    font: inherit;
}

.lqv-mode--xr {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
}

.lqv-mode span {
    display: flex;
    flex-direction: column;
}

.lqv-mode em {
    font-style: normal;
    font-size: 0.82rem;
    opacity: 0.82;
}

.lqv-mode:disabled {
    opacity: 0.55;
    cursor: wait;
}

.lqv-btn {
    appearance: none;
    border: 0;
    border-radius: 999px;
    padding: 0.75rem 1.15rem;
    font: 600 1rem Outfit, sans-serif;
    cursor: pointer;
}

.lqv-btn--primary {
    background: linear-gradient(135deg, var(--lqv-teal), var(--lqv-green));
    color: #062032;
}

.lqv-btn--ghost {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.18);
    text-decoration: none;
}

.lqv-xr-status {
    margin: 0 0 0.8rem;
    color: var(--lqv-muted);
    font-size: 0.88rem;
}

.lqv-xr-status.is-no {
    color: #fde68a;
}

.lqv-brief {
    margin: 1.4rem 0;
    max-width: 36rem;
    padding: 1rem 1.1rem;
    border-radius: 1.1rem;
    background: rgba(15, 23, 42, 0.72);
    border: 1px solid rgba(148, 163, 184, 0.25);
}

.lqv-brand {
    color: #64748b;
    font-size: 0.82rem;
    max-width: 40rem;
}

.lqv-hud {
    position: fixed;
    z-index: 6;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    gap: 0.7rem;
    padding: 0.7rem;
    background: linear-gradient(180deg, rgba(7, 16, 28, 0.78), transparent);
}

.lqv-app.is-xr .lqv-hud,
.lqv-app.is-xr .lqv-hint,
.lqv-app.is-xr .lqv-look,
.lqv-app.is-xr .lqv-info,
.lqv-app.is-xr .lqv-ejercicio,
.lqv-app.is-xr .lqv-controles,
.lqv-app.is-xr .lqv-reticle {
    display: none !important;
}

.lqv-icon-btn {
    width: 2.4rem;
    height: 2.4rem;
    border: 0;
    border-radius: 50%;
    background: rgba(15, 23, 42, 0.75);
    color: #fff;
    cursor: pointer;
}

.lqv-chip {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.3rem 0.7rem 0.3rem 0.3rem;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.78);
}

.lqv-chip__avatar {
    position: relative;
    width: 2.4rem;
    height: 2.4rem;
}

.lqv-chip__avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.lqv-chip__kicker {
    margin: 0;
    color: var(--lqv-teal);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
}

.lqv-chip__name,
.lqv-progress {
    margin: 0;
}

.lqv-progress {
    margin-left: auto;
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.78);
    font-size: 0.85rem;
}

.lqv-voice-waves {
    position: absolute;
    inset: auto 0 -2px 0;
    display: none;
    justify-content: center;
    gap: 2px;
}

.lqv-app.is-speaking .lqv-voice-waves {
    display: flex;
}

.lqv-voice-waves span {
    width: 3px;
    height: 8px;
    background: var(--lqv-green);
    animation: lqv-wave 0.8s infinite ease-in-out;
}

.lqv-voice-waves span:nth-child(2) { animation-delay: 0.15s; }
.lqv-voice-waves span:nth-child(3) { animation-delay: 0.3s; }

@keyframes lqv-wave {
    50% { transform: scaleY(0.4); }
}

.lqv-hint,
.lqv-look,
.lqv-ejercicio,
.lqv-info,
.lqv-controles {
    position: fixed;
    z-index: 7;
    background: rgba(8, 22, 40, 0.9);
    border: 1px solid rgba(148, 163, 184, 0.28);
    border-radius: 1rem;
}

.lqv-hint {
    left: 50%;
    bottom: 1rem;
    transform: translateX(-50%);
    margin: 0;
    padding: 0.45rem 0.8rem;
    font-size: 0.82rem;
    color: var(--lqv-muted);
}

.lqv-app.is-xr .lqv-hint__desk,
.lqv-hint__xr {
    display: none;
}

.lqv-app.is-xr .lqv-hint__xr {
    display: inline;
}

.lqv-look {
    left: 50%;
    top: 42%;
    transform: translate(-50%, -50%);
    margin: 0;
    padding: 0.55rem 0.8rem;
    text-align: center;
    pointer-events: none;
}

.lqv-look strong,
.lqv-look span {
    display: block;
}

.lqv-look span {
    color: var(--lqv-muted);
    font-size: 0.82rem;
}

.lqv-reticle {
    position: fixed;
    z-index: 4;
    left: 50%;
    top: 50%;
    width: 22px;
    height: 22px;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.lqv-reticle__ring,
.lqv-reticle__cross {
    position: absolute;
    inset: 0;
    border: 2px solid #fff;
    border-radius: 50%;
}

.lqv-reticle__cross {
    border: 0;
    background:
        linear-gradient(#fff, #fff) center/2px 100% no-repeat,
        linear-gradient(#fff, #fff) center/100% 2px no-repeat;
}

.lqv-reticle.is-hot .lqv-reticle__ring {
    border-color: var(--lqv-green);
}

.lqv-info {
    right: 1rem;
    bottom: 4.2rem;
    width: min(26rem, calc(100% - 2rem));
    padding: 0.9rem 1rem 1rem;
}

.lqv-info__sci {
    color: var(--lqv-teal);
    font-weight: 600;
}

.lqv-ejercicio {
    left: 1rem;
    bottom: 4.2rem;
    width: min(22rem, calc(100% - 2rem));
    padding: 0.85rem 1rem;
}

.lqv-controles {
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: min(36rem, calc(100% - 2rem));
    padding: 1.1rem 1.2rem 1.2rem;
}

.lqv-controles__list {
    margin: 0 0 1rem;
    padding-left: 1.1rem;
    color: var(--lqv-muted);
    line-height: 1.5;
}

@media (max-width: 800px) {
    .lqv-welcome {
        grid-template-columns: 1fr;
    }
}