/* ============================================
   MENÚ / PÁGINAS DE VENTA
   ============================================ */

/* Hero de venta */
.sale-hero {
    padding: 100px 0 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.sale-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: 50%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255,193,7,0.06) 0%, transparent 70%);
    transform: translate(-50%, 0);
    pointer-events: none;
}

.sale-hero .pre-badge {
    display: inline-block;
    background: rgba(255,193,7,0.12);
    border: 1px solid rgba(255,193,7,0.3);
    color: var(--accent);
    padding: 6px 18px;
    border-radius: 40px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    margin-bottom: 20px;
}

.sale-hero h1 {
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.sale-hero h1 span {
    color: var(--accent);
}

.sale-hero .sub {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto 28px;
    line-height: 1.6;
}

.sale-hero .price-tag {
    display: inline-flex;
    align-items: baseline;
    gap: 6px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 60px;
    padding: 10px 28px;
    margin-bottom: 28px;
}

.sale-hero .price-tag .amount {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--accent);
}

.sale-hero .price-tag .period {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.sale-hero .price-tag .badge-free {
    background: var(--success);
    color: #0a0a0a;
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 700;
}

.sale-hero .cta-group {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--accent);
    color: #0a0a0a;
    padding: 14px 36px;
    border-radius: 40px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.05rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.cta-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(255,193,7,0.3);
}

.sale-hero .cta-primary {
    background: var(--accent);
    color: #0a0a0a;
    padding: 14px 36px;
    border-radius: 40px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.05rem;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.sale-hero .cta-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(255,193,7,0.3);
}

.sale-hero .cta-secondary {
    border: 2px solid var(--border);
    color: var(--text-primary);
    padding: 14px 36px;
    border-radius: 40px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.05rem;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.sale-hero .cta-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* Secciones */
.sale-section {
    padding: 70px 0;
}

.sale-section:nth-child(odd) {
    background: var(--bg-secondary);
}

.sale-section .section-label {
    display: inline-block;
    text-transform: uppercase;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: var(--accent);
    margin-bottom: 8px;
}

.sale-section h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.sale-section .section-desc {
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 40px;
    font-size: 1rem;
    line-height: 1.6;
}

.sale-section-card {
    background: rgba(18,18,18,0.6);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,193,7,0.12);
    border-radius: 24px;
    padding: 32px 28px;
}

@media (max-width: 768px) {
    .sale-section-card {
        padding: 24px 16px;
        border-radius: 18px;
    }
}

/* Steps */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.step-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 28px 24px;
    transition: all 0.3s ease;
    position: relative;
}

.step-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
}

.step-card .step-num {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--accent);
    opacity: 0.65;
    line-height: 1;
    margin-bottom: 8px;
}

.step-card h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.step-card p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Features grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
}

.feature-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 22px 20px;
    display: flex;
    gap: 16px;
    align-items: flex-start;
    transition: all 0.3s ease;
}

.feature-item:hover {
    border-color: var(--accent);
}

.feature-item .fi-icon {
    width: 42px;
    height: 42px;
    min-width: 42px;
    border-radius: 12px;
    background: rgba(255,193,7,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--accent);
}

.feature-item .fi-text h4 {
    font-size: 0.95rem;
    margin-bottom: 4px;
}

.feature-item .fi-text p {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Tablas */
.sale-table-wrap {
    overflow-x: auto;
    margin: 32px 0;
    border-radius: 16px;
    border: 1px solid var(--border);
}

.sale-table-wrap table {
    width: 100%;
    border-collapse: collapse;
}

.sale-table-wrap th,
.sale-table-wrap td {
    padding: 14px 18px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.sale-table-wrap th {
    background: var(--bg-card);
    color: var(--accent);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sale-table-wrap td {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.sale-table-wrap tr:last-child td {
    border-bottom: none;
}

.sale-table-wrap .positive {
    color: var(--success);
}

.sale-table-wrap .neutral {
    color: var(--text-primary);
}

/* Pricing cards */
.sale-pricing {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.sale-pricing .sp-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 28px 24px;
    text-align: center;
    transition: all 0.3s ease;
}

.sale-pricing .sp-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
}

.sale-pricing .sp-card.popular {
    border: 2px solid var(--accent);
    position: relative;
}

.sale-pricing .sp-card.popular::after {
    content: 'Mejor valor';
    position: absolute;
    top: -10px;
    right: 20px;
    background: var(--accent);
    color: #0a0a0a;
    padding: 3px 14px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 700;
}

.sale-pricing .sp-card h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.sale-pricing .sp-card .sp-price {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--accent);
}

.sale-pricing .sp-card .sp-period {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.sale-pricing .sp-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 20px;
}

.sale-pricing .sp-card .sp-btn {
    display: block;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 10px;
    border-radius: 40px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.sale-pricing .sp-card .sp-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #0a0a0a;
}

.sale-pricing .sp-card.popular .sp-btn {
    background: var(--accent);
    color: #0a0a0a;
    border-color: var(--accent);
}

/* CTA final */
.sale-cta {
    text-align: center;
    padding: 80px 0;
}

.sale-cta-card {
    background: linear-gradient(135deg, rgba(255,193,7,0.08), rgba(255,193,7,0.02));
    border: 1px solid rgba(255,193,7,0.15);
    border-radius: 28px;
    padding: 48px 32px;
    max-width: 640px;
    margin: 0 auto;
}

.sale-cta h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.cta-desc {
    color: var(--text-secondary);
    max-width: 460px;
    margin: 0 auto 28px;
    font-size: 1.05rem;
    line-height: 1.6;
}

.cta-highlight {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.cta-note {
    font-size: 0.75rem;
    color: var(--text-secondary);
    opacity: 0.6;
    margin: 0;
}

@media (max-width: 768px) {
    .sale-cta-card {
        padding: 32px 20px;
        border-radius: 20px;
        margin: 0 8px;
    }
}

/* FAQ compacto */
.faq-compact {
    max-width: 700px;
    margin: 0 auto;
}

.faq-compact details {
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
}

.faq-compact details summary {
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
}

.faq-compact details summary::after {
    content: '+';
    font-size: 1.3rem;
    color: var(--accent);
    transition: transform 0.3s ease;
}

.faq-compact details[open] summary::after {
    transform: rotate(45deg);
}

.faq-compact details p {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.6;
    padding-top: 12px;
}

/* ============================================
   DITHERING SHADER BACKGROUND
   ============================================ */
#ditCanvas {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    display: block;
    z-index: -1;
    pointer-events: none;
}

/* Demo gallery shader */
.demo-shader-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    margin-top: 24px;
}

.demo-canvas {
    width: 100%;
    max-width: 480px;
    aspect-ratio: 1;
    border-radius: 16px;
    border: 1px solid rgba(255,193,7,0.15);
    display: block;
    background: #0a0a0a;
}

.demo-controls {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
}

.demo-btn {
    padding: 6px 14px;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 20px;
    background: rgba(255,255,255,0.04);
    color: rgba(255,255,255,0.6);
    cursor: pointer;
    font-size: 0.85rem;
    font-family: inherit;
    transition: all 0.2s;
}

.demo-btn:hover {
    border-color: rgba(255,193,7,0.3);
    color: #fff;
    background: rgba(255,193,7,0.08);
}

.demo-btn.active {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(255,193,7,0.12);
}

/*
   SWIRL SHADER BACKGROUND
   ============================================ */
#swirlCanvas {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    display: block;
    background: #0a0a0a;
    z-index: -1;
    pointer-events: none;
}



/* ============================================
   QR SCAN ANIMATION
   ============================================ */
.qr-scan-section {
    position: relative;
    padding: 80px 0;
    text-align: center;
    overflow: hidden;
}

.qr-scan-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(255,193,7,0.04) 0%, transparent 70%);
    pointer-events: none;
}

.qr-scan-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
}

.qr-phone {
    position: relative;
    width: 280px;
    height: 520px;
    border-radius: 40px;
    border: 3px solid var(--border);
    background: rgba(18,18,18,0.8);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: box-shadow 0.3s ease;
}

.qr-phone .phone-notch {
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 20px;
    background: var(--border);
    border-radius: 20px;
    z-index: 5;
}

.qr-phone .phone-screen {
    position: absolute;
    top: 12px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    border-radius: 28px;
    overflow: hidden;
    background: #0a0a0a;
}

.qr-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: block;
    z-index: 1;
}

.iframe-wrap {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 3;
    overflow: hidden;
    opacity: 0;
    transition: opacity 0.6s ease;
}

.iframe-wrap.active {
    opacity: 1;
}

.iframe-wrap.captured {
    z-index: 20;
}

.iframe-grabber {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 5;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    transition: opacity 0.3s ease;
}

.iframe-grabber.hidden {
    opacity: 0;
    pointer-events: none;
}

.grabber-hint {
    background: rgba(10,10,10,0.75);
    color: #ffc107;
    font-size: 0.65rem;
    padding: 6px 14px;
    border-radius: 40px;
    border: 1px solid rgba(255,193,7,0.3);
    pointer-events: none;
    backdrop-filter: blur(4px);
}

.demo-frame {
    display: block;
    border: none;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.iframe-wrap.captured .demo-frame {
    pointer-events: auto;
}

.qr-overlay-top {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
    text-align: center;
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.qr-overlay-top.active {
    opacity: 1;
}

.qr-check-icon {
    font-size: 2rem;
    color: #00ff88;
    text-shadow: 0 0 20px rgba(0,255,136,0.6);
    margin-bottom: 4px;
}

.qr-check-text {
    font-size: 0.55rem;
    color: #00ff88;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.qr-scan-line {
    position: absolute;
    left: 6%;
    width: 88%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), #ffc107, var(--accent), transparent);
    box-shadow: 0 0 14px rgba(255,193,7,0.7), 0 0 30px rgba(255,193,7,0.2);
    top: 5%;
    transition: opacity 0.3s ease;
    z-index: 4;
    filter: blur(0.5px);
}

.qr-scan-line.hidden {
    opacity: 0;
}

.qr-replay {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: transparent;
    border: 2px solid var(--accent);
    color: var(--accent);
    padding: 12px 28px;
    border-radius: 40px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
    margin-top: 8px;
}

.qr-replay:hover {
    background: var(--accent);
    color: #0a0a0a;
}

.qr-scan-line::before {
    content: '';
    position: absolute;
    right: -3px;
    top: -3px;
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 12px rgba(255,193,7,0.9);
}

.qr-scan-line::after {
    content: '';
    position: absolute;
    left: -3px;
    top: -3px;
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 12px rgba(255,193,7,0.9);
}

.qr-scan-label {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    max-width: 400px;
}

.qr-scan-label strong {
    color: var(--accent);
}

@media (max-width: 768px) {
    .qr-phone {
        width: 220px;
        height: 420px;
    }
    .qr-phone .phone-notch {
        width: 80px;
        height: 18px;
        top: 10px;
    }
    .qr-phone .phone-screen {
        top: 10px;
        left: 8px;
        right: 8px;
        bottom: 8px;
        border-radius: 22px;
    }
    .qr-scan-section { padding: 60px 0; }
}

/* ============================================
   RESPONSIVE
   ============================================ */
section[id] {
    scroll-margin-top: 80px;
}

@media (max-width: 768px) {
    section[id] {
        scroll-margin-top: 70px;
    }
    .sale-hero h1 { font-size: 2.2rem; }
    .sale-hero .price-tag .amount { font-size: 1.8rem; }
    .sale-section h2 { font-size: 1.5rem; }
    .sale-hero { padding: 80px 0 120px; }
    .sale-section { padding: 50px 0; }
    .steps-grid { grid-template-columns: 1fr; }
    .features-grid { grid-template-columns: 1fr; }
    .sale-pricing { grid-template-columns: 1fr; }
    main { padding-bottom: 80px; }
}