/* ==========================================================================
   GOTRA - "MUERTO AL FIN" CASSINGLE PRE-SALE (EDICIÓN LIMITADA)
   Design System: Doom Metal / Nocturnal Night / Indigo Blue & Lunar Silver
   Elite Boutique UI & Responsive Mobile-First Architecture
   ========================================================================== */

:root {
    /* Color Palette: Índigo Cósmico, Azul Eléctrico & Plata Lunar */
    --bg-black: #060913;
    --bg-dark: #090e1c;
    --bg-card: rgba(12, 18, 34, 0.78);
    --bg-card-elevated: rgba(16, 25, 48, 0.88);
    --bg-tile: rgba(6, 10, 22, 0.75);
    --bg-input: rgba(6, 10, 22, 0.9);
    
    --primary: #0055ff;
    --primary-light: #4d88ff;
    --primary-bright: #38bdf8;
    --primary-dim: rgba(0, 85, 255, 0.25);
    --primary-glow: rgba(0, 85, 255, 0.45);
    
    --silver-pure: #ffffff;
    --silver-light: #f8fafc;
    --silver-main: #e2e8f0;
    --silver-muted: #94a3b8;
    --silver-dim: #64748b;

    --whatsapp-green: #25D366;
    --whatsapp-dark: #128C7E;
    --whatsapp-glow: rgba(37, 211, 102, 0.4);

    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-card: rgba(77, 136, 255, 0.18);
    --border-active: rgba(77, 136, 255, 0.65);
    --border-focus: rgba(0, 85, 255, 0.85);

    /* Fonts */
    --font-heading: 'Cinzel', serif;
    --font-gothic: 'Almendra', serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Special Elite', monospace;

    /* Transitions & Shadows */
    --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    --shadow-card: 0 16px 40px rgba(0, 0, 0, 0.65), 0 0 30px rgba(0, 85, 255, 0.08);
    --shadow-glow: 0 0 25px var(--primary-glow);
}

/* Reset & Box Sizing */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-black);
}

body {
    background-color: var(--bg-black);
    color: var(--silver-main);
    font-family: var(--font-body);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
}

/* Background Atmosphere */
.bg-gate-layer {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background: url('assets/bg_gate.jpg') no-repeat center top / cover;
    opacity: 0.95;
    filter: contrast(1.1) brightness(1.25) saturate(1.15);
}

.bg-vignette {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background: linear-gradient(180deg, rgba(6, 9, 19, 0.15) 0%, rgba(6, 9, 19, 0.45) 400px, rgba(6, 9, 19, 0.75) 750px, #060913 100%),
                radial-gradient(circle at 50% 15%, transparent 35%, rgba(6, 9, 19, 0.45) 70%, #060913 100%);
}

.bg-glow {
    position: fixed;
    top: 2%;
    left: 50%;
    transform: translateX(-50%);
    width: 650px;
    height: 450px;
    background: radial-gradient(circle, rgba(0, 85, 255, 0.25) 0%, rgba(77, 136, 255, 0.12) 45%, transparent 70%);
    filter: blur(70px);
    pointer-events: none;
    z-index: 0;
}

/* Main Container (Ajustado para respirar en mobile) */
.page-container {
    position: relative;
    z-index: 2;
    max-width: 580px;
    margin: 0 auto;
    padding: 1.25rem 1rem 3.5rem 1rem;
}

@media (min-width: 480px) {
    .page-container {
        padding: 2rem 1.25rem 4.5rem 1.25rem;
    }
}

/* Header & Logo */
.site-header {
    padding: 1rem 0 1.75rem 0;
    text-align: center;
    border-bottom: 1px solid var(--border-subtle);
    margin-bottom: 2rem;
}

.header-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.65rem;
}

.header-logo {
    height: 75px;
    width: auto;
    max-width: 90%;
    object-fit: contain;
    filter: drop-shadow(0 0 18px rgba(0, 85, 255, 0.4));
    transition: transform 0.3s ease;
}

.header-logo:hover {
    transform: scale(1.03);
}

@media (min-width: 480px) {
    .header-logo {
        height: 90px;
    }
}

.header-tag {
    font-family: var(--font-heading);
    font-size: 0.72rem;
    letter-spacing: 4px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--primary-light);
}

/* Hero Section */
.hero-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-bottom: 2.75rem;
}

.scarcity-badge-top {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(0, 85, 255, 0.14);
    border: 1px solid var(--border-card);
    padding: 0.38rem 0.9rem;
    border-radius: 50px;
    margin-bottom: 1.5rem;
    animation: fadeInDown 0.8s ease-out;
}

.badge-dot {
    width: 6px;
    height: 6px;
    background-color: var(--primary-light);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--primary-bright);
    animation: pulseGlow 2s infinite;
}

.badge-text {
    font-family: var(--font-heading);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: var(--silver-light);
    text-transform: uppercase;
}

/* Showcase Mockup */
.cassette-showcase {
    position: relative;
    width: 100%;
    max-width: 360px;
    margin: 0 auto 1.75rem auto;
}

.mockup-halo {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    height: 90%;
    background: radial-gradient(circle, rgba(0, 85, 255, 0.28) 0%, transparent 70%);
    filter: blur(45px);
    z-index: 0;
    pointer-events: none;
}

.mockup-container {
    position: relative;
    z-index: 1;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 15px 45px rgba(0, 0, 0, 0.85), 0 0 30px rgba(0, 85, 255, 0.22);
    border: 1px solid var(--border-card);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.mockup-container:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 55px rgba(0, 0, 0, 0.95), 0 0 40px var(--primary-glow);
}

.mockup-img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

/* Hero Details */
.hero-details {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-title {
    margin-bottom: 1.15rem;
}

.band-name {
    display: block;
    font-family: var(--font-gothic);
    font-size: 1.35rem;
    letter-spacing: 6px;
    color: var(--primary-light);
    text-transform: uppercase;
}

.release-title {
    display: block;
    font-family: var(--font-heading);
    font-size: 2.15rem;
    font-weight: 900;
    color: var(--silver-pure);
    letter-spacing: 1px;
    line-height: 1.15;
    text-shadow: 0 2px 25px rgba(0, 85, 255, 0.4);
    margin: 0.2rem 0;
}

@media (min-width: 480px) {
    .release-title {
        font-size: 2.45rem;
    }
}

.release-subtitle {
    display: block;
    font-family: var(--font-body);
    font-size: 0.88rem;
    font-weight: 400;
    color: var(--silver-muted);
    letter-spacing: 0.5px;
}

/* Feature Pills */
.feature-pills {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.45rem;
    margin-bottom: 1.5rem;
}

.pill {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle);
    padding: 0.35rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--silver-muted);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.pill-dot {
    color: var(--primary-light);
    font-size: 0.55rem;
}

/* Price Box */
.price-box {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-card);
    border-radius: 10px;
    padding: 1rem 1.25rem;
    width: 100%;
    margin-bottom: 1.25rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
}

.price-label {
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--silver-muted);
}

.price-row {
    display: flex;
    align-items: baseline;
    gap: 0.35rem;
}

.price-amount {
    font-family: var(--font-heading);
    font-size: 1.85rem;
    font-weight: 900;
    color: var(--silver-pure);
    letter-spacing: 0.5px;
    line-height: 1.1;
}

@media (min-width: 480px) {
    .price-amount {
        font-size: 2.15rem;
    }
}

.price-currency {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--primary-bright);
}

.price-subtext {
    font-size: 0.72rem;
    color: var(--silver-dim);
    line-height: 1.3;
}

/* Primary CTA Button (Hero) */
.btn-primary-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    background: linear-gradient(135deg, #0055ff 0%, #2563eb 100%);
    color: #ffffff;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 900;
    padding: 1.05rem 1.25rem;
    border-radius: 8px;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 2px;
    border: none;
    cursor: pointer;
    box-shadow: 0 8px 25px rgba(0, 85, 255, 0.45);
    transition: var(--transition);
}

.btn-primary-cta:hover {
    background: linear-gradient(135deg, #1d4ed8 0%, #3b82f6 100%);
    box-shadow: 0 12px 30px rgba(0, 85, 255, 0.65);
    transform: translateY(-2px);
}

.pulse-cta {
    animation: ctaPulse 3s infinite;
}

.cta-microcopy {
    font-size: 0.7rem;
    color: var(--silver-dim);
    margin-top: 0.5rem;
}

/* Generic Section Card (Limpio y fluido) */
.section-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-card);
    border-radius: 12px;
    padding: 1.25rem 1rem;
    margin-bottom: 2.25rem;
    box-shadow: var(--shadow-card);
}

@media (min-width: 480px) {
    .section-card {
        padding: 1.6rem 1.4rem;
    }
}

.section-title-wrap {
    margin-bottom: 1.25rem;
}

.text-center {
    text-align: center;
}

.section-tag {
    display: block;
    font-family: var(--font-heading);
    font-size: 0.68rem;
    letter-spacing: 3px;
    color: var(--primary-light);
    text-transform: uppercase;
    margin-bottom: 0.2rem;
}

.section-heading {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--silver-pure);
    letter-spacing: 0.5px;
}

@media (min-width: 480px) {
    .section-heading {
        font-size: 1.7rem;
    }
}

/* Goal & Progress Bar Section */
.goal-card {
    border-color: var(--border-active);
    background: linear-gradient(180deg, rgba(14, 22, 42, 0.90) 0%, rgba(9, 14, 28, 0.94) 100%);
}

.goal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 0.85rem;
}

.goal-eyebrow {
    font-family: var(--font-heading);
    font-size: 0.62rem;
    letter-spacing: 2px;
    color: var(--primary-light);
}

.goal-heading {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--silver-pure);
}

.goal-percentage {
    text-align: right;
}

#goal-percent-text {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 900;
    color: var(--primary-bright);
    line-height: 1;
}

.percent-label {
    font-size: 0.65rem;
    color: var(--silver-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Progress Track & Fill */
.progress-bar-track {
    width: 100%;
    height: 12px;
    background: #050812;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border-subtle);
    position: relative;
    margin-bottom: 1rem;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #0055ff 0%, #38bdf8 100%);
    border-radius: 20px;
    position: relative;
    transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 0 15px rgba(0, 85, 255, 0.6);
}

.progress-bar-glow {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 30px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.8));
    filter: blur(2px);
    animation: shimmer 2s infinite;
}

/* Dynamic Stats Grid */
.goal-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.4rem;
    text-align: center;
    background: rgba(0, 0, 0, 0.3);
    padding: 0.75rem 0.4rem;
    border-radius: 8px;
    border: 1px solid var(--border-subtle);
    margin-bottom: 0.85rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-num {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--silver-pure);
}

.stat-item.highlight .stat-num {
    color: var(--primary-bright);
}

.stat-desc {
    font-size: 0.65rem;
    color: var(--silver-muted);
    line-height: 1.2;
    margin-top: 0.15rem;
}

/* Scarcity Alert */
.scarcity-alert {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    background: rgba(0, 85, 255, 0.12);
    border: 1px solid var(--border-card);
    padding: 0.65rem 0.85rem;
    border-radius: 6px;
}

.alert-indicator {
    width: 7px;
    height: 7px;
    background: var(--primary-bright);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--primary-bright);
    flex-shrink: 0;
}

.alert-text {
    font-size: 0.78rem;
    color: var(--silver-main);
    line-height: 1.35;
}

/* Specs & Details Section */
.edition-section {
    margin-bottom: 2.25rem;
}

.specs-grid {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.spec-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-card);
    border-radius: 10px;
    padding: 1.25rem 1rem;
    position: relative;
}

.card-badge {
    position: absolute;
    top: -9px;
    right: 12px;
    background: var(--bg-dark);
    border: 1px solid var(--primary-light);
    color: var(--primary-bright);
    font-family: var(--font-heading);
    font-size: 0.58rem;
    font-weight: 700;
    letter-spacing: 1px;
    padding: 0.18rem 0.45rem;
    border-radius: 3px;
}

.card-title {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--silver-pure);
    margin-bottom: 0.85rem;
}

/* Tracklist */
.tracklist {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.track-item {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-subtle);
}

.track-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.track-side {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--primary-bright);
    background: rgba(0, 85, 255, 0.15);
    border: 1px solid var(--border-card);
    padding: 0.2rem 0.45rem;
    border-radius: 4px;
    white-space: nowrap;
}

.track-info {
    display: flex;
    flex-direction: column;
}

.track-name {
    font-weight: 600;
    font-size: 0.92rem;
    color: var(--silver-pure);
}

.track-meta {
    font-size: 0.75rem;
    color: var(--silver-muted);
    margin-top: 0.1rem;
}

/* Physical Specs List */
.specs-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.specs-list li {
    display: flex;
    gap: 0.65rem;
    align-items: flex-start;
}

.spec-bullet {
    color: var(--primary-light);
    font-size: 0.6rem;
    line-height: 1.8;
}

.spec-text strong {
    display: block;
    font-size: 0.85rem;
    color: var(--silver-main);
}

.spec-text span {
    font-size: 0.75rem;
    color: var(--silver-muted);
}

/* Delivery Details (Desplegable) */
.delivery-details {
    padding: 0;
    overflow: hidden;
}

.delivery-summary {
    padding: 1.15rem 1.15rem;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
    transition: var(--transition);
}

.delivery-summary::-webkit-details-marker {
    display: none;
}

.delivery-summary:hover {
    background: rgba(0, 85, 255, 0.05);
}

.delivery-summary-title {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--silver-pure);
}

.toggle-icon {
    font-family: monospace;
    font-size: 1.2rem;
    color: var(--primary-light);
    line-height: 1;
}

.toggle-icon::before {
    content: '+';
}

.delivery-details[open] .toggle-icon::before {
    content: '−';
}

.delivery-details[open] .delivery-summary {
    border-bottom: 1px solid var(--border-subtle);
}

.delivery-options-grid {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding: 1.15rem 1.15rem;
}

.delivery-box {
    display: flex;
    gap: 0.75rem;
    background: rgba(7, 12, 24, 0.65);
    border: 1px solid var(--border-subtle);
    padding: 0.85rem 1rem;
    border-radius: 8px;
}

.del-bullet {
    color: var(--primary-light);
    font-size: 0.65rem;
    line-height: 1.6;
}

.del-info h4 {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--silver-light);
    margin-bottom: 0.2rem;
}

.del-info p {
    font-size: 0.75rem;
    color: var(--silver-muted);
    line-height: 1.35;
}

/* ==========================================================================
   CHECKOUT & ACCORDION (REDISEÑADO PREMIUM / ZERO CLUTTER)
   ========================================================================== */
.checkout-card {
    border-color: var(--border-active);
    background: linear-gradient(180deg, rgba(14, 22, 42, 0.95) 0%, rgba(8, 13, 26, 0.98) 100%);
    box-shadow: 0 16px 45px rgba(0, 0, 0, 0.8), 0 0 35px rgba(0, 85, 255, 0.15);
    padding: 1.25rem 0.85rem;
}

@media (min-width: 480px) {
    .checkout-card {
        padding: 1.75rem 1.4rem;
    }
}

.scarcity-pill-sm {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 0.62rem;
    letter-spacing: 2px;
    color: var(--primary-bright);
    background: rgba(0, 85, 255, 0.15);
    border: 1px solid var(--border-card);
    padding: 0.18rem 0.55rem;
    border-radius: 4px;
    margin-bottom: 0.4rem;
}

.checkout-desc {
    font-size: 0.82rem;
    color: var(--silver-muted);
    margin-top: 0.35rem;
}

.reservation-form {
    margin-top: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

/* Accordion Step Item */
.accordion-step {
    background: rgba(8, 13, 26, 0.75);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    overflow: hidden;
    transition: var(--transition);
}

.accordion-step.is-open {
    background: rgba(10, 16, 32, 0.92);
    border-color: var(--border-active);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.4), 0 0 20px rgba(0, 85, 255, 0.12);
}

.accordion-step-btn {
    width: 100%;
    background: transparent;
    border: none;
    padding: 0.9rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    text-align: left;
    transition: var(--transition);
}

.accordion-step-btn:hover {
    background: rgba(0, 85, 255, 0.06);
}

.step-btn-left {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.step-num {
    background: var(--primary-dim);
    color: var(--silver-pure);
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.72rem;
    font-weight: 800;
    transition: var(--transition);
}

.accordion-step.is-open .step-num {
    background: var(--primary);
    color: #ffffff;
    box-shadow: 0 0 10px var(--primary-glow);
}

.step-label {
    font-family: var(--font-heading);
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--silver-main);
    letter-spacing: 0.5px;
}

.accordion-step.is-open .step-label {
    color: var(--silver-pure);
}

.step-icon {
    font-family: monospace;
    font-size: 1.15rem;
    color: var(--primary-light);
    line-height: 1;
}

.step-icon::before {
    content: '+';
}

.accordion-step.is-open .step-icon::before {
    content: '−';
}

/* Step Content (Sin anidamiento excesivo) */
.step-content {
    display: none;
    flex-direction: column;
    gap: 0.85rem;
    padding: 0.4rem 0.85rem 1.1rem 0.85rem;
    border-top: 1px solid var(--border-subtle);
    animation: fadeIn 0.3s ease;
}

@media (min-width: 480px) {
    .step-content {
        padding: 0.5rem 1.15rem 1.25rem 1.15rem;
        gap: 1rem;
    }
}

.accordion-step.is-open .step-content {
    display: flex;
}

/* Selector de Variantes (Cards Táctiles de Alta Gama) */
.group-label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--silver-main);
    margin-bottom: 0.2rem;
    display: block;
}

.variant-selector {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.65rem;
}

@media (min-width: 460px) {
    .variant-selector {
        grid-template-columns: 1fr 1fr;
    }
}

.variant-option {
    cursor: pointer;
    position: relative;
}

.variant-option input {
    display: none;
}

.variant-box {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    background: var(--bg-tile);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 0.85rem 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    height: 100%;
}

.variant-box:hover {
    border-color: var(--border-card);
    background: rgba(14, 22, 42, 0.85);
}

.variant-option input:checked + .variant-box {
    background: rgba(0, 85, 255, 0.18);
    border-color: var(--primary-light);
    box-shadow: 0 0 16px rgba(0, 85, 255, 0.25);
}

.variant-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
}

.variant-name {
    font-weight: 700;
    font-size: 0.88rem;
    color: var(--silver-pure);
}

.variant-price {
    font-family: var(--font-heading);
    font-weight: 800;
    color: var(--primary-bright);
    font-size: 0.95rem;
    white-space: nowrap;
}

.variant-desc {
    font-size: 0.73rem;
    color: var(--silver-muted);
    line-height: 1.3;
}

.variant-badge-tag {
    position: absolute;
    top: -8px;
    right: 8px;
    background: var(--primary);
    color: #ffffff;
    font-size: 0.58rem;
    font-weight: 800;
    text-transform: uppercase;
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
    letter-spacing: 0.5px;
    box-shadow: 0 0 8px rgba(0, 85, 255, 0.6);
}

/* Inputs & Form Groups */
.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.input-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
}

@media (min-width: 480px) {
    .input-row {
        grid-template-columns: 1fr 1fr;
    }
}

label {
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--silver-main);
}

input[type="text"],
input[type="tel"],
input[type="email"] {
    background: var(--bg-input);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    padding: 0.75rem 0.9rem;
    color: var(--silver-pure);
    font-family: var(--font-body);
    font-size: 0.92rem;
    transition: var(--transition);
    outline: none;
    width: 100%;
}

input[type="text"]:focus,
input[type="tel"]:focus,
input[type="email"]:focus {
    border-color: var(--primary-light);
    box-shadow: 0 0 12px rgba(0, 85, 255, 0.35);
    background: #091024;
}

.input-error-msg {
    display: none;
    font-size: 0.7rem;
    color: #f87171;
    margin-top: 0.15rem;
}

.input-group.has-error input {
    border-color: #ef4444;
}

.input-group.has-error .input-error-msg {
    display: block;
}

/* Quantity Radio Selector */
.quantity-selector {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.65rem;
}

.qty-option input {
    display: none;
}

.qty-box {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: var(--bg-tile);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    padding: 0.7rem 0.5rem;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--silver-muted);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.qty-option input:checked + .qty-box {
    background: rgba(0, 85, 255, 0.2);
    border-color: var(--primary-light);
    color: var(--silver-pure);
    box-shadow: 0 0 12px rgba(0, 85, 255, 0.2);
}

/* Button Step Next */
.btn-step-next {
    width: 100%;
    background: rgba(0, 85, 255, 0.16);
    border: 1px solid var(--border-card);
    color: var(--silver-pure);
    font-family: var(--font-body);
    font-size: 0.88rem;
    font-weight: 700;
    padding: 0.85rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    letter-spacing: 0.5px;
    transition: var(--transition);
    margin-top: 0.35rem;
}

.btn-step-next:hover {
    background: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 0 18px rgba(0, 85, 255, 0.45);
}

/* ==========================================================================
   PASO 2: PAYMENT TILES (ESTILO FINTECH / STRIPE BOUTIQUE)
   ========================================================================== */
.payment-total-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0, 85, 255, 0.12);
    border: 1px solid var(--border-card);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    margin-bottom: 0.25rem;
}

.total-bar-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--silver-muted);
    font-weight: 600;
}

.total-bar-price {
    display: flex;
    align-items: baseline;
    gap: 0.35rem;
}

.total-amount-num {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--silver-pure);
    line-height: 1;
}

.total-amount-cur {
    font-family: var(--font-heading);
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--primary-bright);
}

.bank-tiles-grid {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.bank-tile {
    background: var(--bg-tile);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 0.65rem 0.85rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    transition: var(--transition);
}

.bank-tile:hover {
    border-color: var(--border-card);
}

.tile-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--silver-dim);
    font-weight: 600;
}

.tile-body {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
}

.tile-value {
    font-family: var(--font-mono);
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--silver-pure);
    user-select: all;
    word-break: break-all;
    line-height: 1.3;
}

.cvu-mono {
    font-size: 0.82rem;
    letter-spacing: 0.5px;
}

.tile-value-static {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--silver-main);
}

.btn-copy-tile {
    background: rgba(0, 85, 255, 0.18);
    border: 1px solid var(--border-card);
    color: var(--silver-pure);
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 600;
    padding: 0.35rem 0.65rem;
    border-radius: 5px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    flex-shrink: 0;
    transition: var(--transition);
}

.btn-copy-tile:hover {
    background: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 0 10px rgba(0, 85, 255, 0.4);
}

.btn-copy-tile.is-copied {
    background: var(--whatsapp-green);
    border-color: var(--whatsapp-green);
    color: #ffffff;
}

.bank-subtip {
    font-size: 0.72rem;
    color: var(--silver-muted);
    text-align: center;
    line-height: 1.35;
    margin: 0.1rem 0;
}

/* ==========================================================================
   PASO 3: CONFIRMACIÓN Y WHATSAPP CTA
   ========================================================================== */
.receipt-reminder-box {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    padding: 0.85rem 1rem;
    border-radius: 8px;
    position: relative;
}

.reminder-badge {
    display: inline-block;
    font-size: 0.58rem;
    font-weight: 800;
    letter-spacing: 1.5px;
    color: var(--primary-bright);
    background: rgba(0, 85, 255, 0.18);
    padding: 0.15rem 0.45rem;
    border-radius: 3px;
    margin-bottom: 0.35rem;
}

.reminder-text strong {
    display: block;
    font-size: 0.85rem;
    color: var(--silver-pure);
    margin-bottom: 0.2rem;
}

.reminder-text p {
    font-size: 0.76rem;
    color: var(--silver-muted);
    line-height: 1.4;
}

/* Botón de WhatsApp Premium (Alta Conversión / 1 Línea) */
.btn-submit-whatsapp {
    width: 100%;
    background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
    color: #ffffff;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 0.95rem 1rem;
    box-shadow: 0 8px 25px var(--whatsapp-glow);
    transition: var(--transition);
    text-align: left;
}

.btn-submit-whatsapp:hover {
    background: linear-gradient(135deg, #2ee06e 0%, #15a898 100%);
    box-shadow: 0 12px 30px rgba(37, 211, 102, 0.55);
    transform: translateY(-2px);
}

.btn-wa-icon {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.btn-wa-content {
    display: flex;
    flex-direction: column;
}

.btn-wa-main {
    font-family: var(--font-body);
    font-size: 0.92rem;
    font-weight: 800;
    letter-spacing: 0.3px;
    line-height: 1.2;
}

.btn-wa-sub {
    font-size: 0.7rem;
    opacity: 0.9;
    font-weight: 400;
}

/* FAQ Accordion */
.faq-section {
    margin-bottom: 2.75rem;
}

.faq-accordion {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item[open] {
    border-color: var(--border-card);
}

.faq-question {
    font-family: var(--font-heading);
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--silver-pure);
    padding: 0.95rem 1.15rem;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-question::after {
    content: '+';
    font-family: monospace;
    font-size: 1.15rem;
    color: var(--primary-light);
    transition: transform 0.2s ease;
}

.faq-item[open] .faq-question::after {
    content: '−';
}

.faq-answer {
    padding: 0 1.15rem 0.95rem 1.15rem;
    font-size: 0.78rem;
    color: var(--silver-muted);
    line-height: 1.45;
}

/* Footer */
.site-footer {
    border-top: 1px solid var(--border-subtle);
    padding-top: 1.75rem;
    text-align: center;
}

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.45rem;
}

.footer-logos-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.15rem;
    margin-bottom: 0.35rem;
}

.footer-logo {
    height: 38px;
    width: auto;
    opacity: 0.9;
    filter: drop-shadow(0 0 12px rgba(0, 85, 255, 0.3));
}

.footer-logo-divider {
    color: var(--primary-dim);
    font-size: 0.85rem;
    font-weight: 300;
}

.footer-cvr-logo {
    height: 34px;
    width: auto;
    border-radius: 4px;
    opacity: 0.85;
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.1));
}

.footer-copy {
    font-size: 0.72rem;
    color: var(--silver-muted);
}

.footer-note {
    font-size: 0.68rem;
    color: var(--silver-dim);
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.35rem;
}

.footer-link {
    font-size: 0.72rem;
    color: var(--primary-light);
    text-decoration: none;
}

.footer-link:hover {
    text-decoration: underline;
}

.sep {
    font-size: 0.6rem;
    color: var(--silver-dim);
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: #0b1328;
    border: 1px solid var(--primary-light);
    color: var(--silver-pure);
    font-size: 0.82rem;
    font-weight: 600;
    padding: 0.7rem 1.2rem;
    border-radius: 50px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8), 0 0 15px var(--primary-glow);
    z-index: 999;
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
    pointer-events: none;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* Success Overlay Modal */
.success-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 1.25rem;
}

.success-overlay.active {
    display: flex;
}

.success-modal {
    background: var(--bg-card-elevated);
    border: 1px solid var(--border-active);
    border-radius: 12px;
    padding: 1.75rem 1.25rem;
    text-align: center;
    max-width: 400px;
    width: 100%;
    box-shadow: var(--shadow-card);
    animation: zoomIn 0.3s ease;
}

.success-title {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    color: var(--primary-bright);
    margin-bottom: 0.4rem;
}

.success-desc {
    font-size: 0.82rem;
    color: var(--silver-main);
    margin-bottom: 1.25rem;
    line-height: 1.4;
}

.btn-close-modal {
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--silver-muted);
    font-size: 0.78rem;
    padding: 0.45rem 0.9rem;
    border-radius: 4px;
    cursor: pointer;
    margin-top: 0.65rem;
}

/* Keyframe Animations */
@keyframes pulseGlow {
    0%, 100% { opacity: 0.6; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.3); }
}

@keyframes ctaPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(400%); }
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes zoomIn {
    from { opacity: 0; transform: scale(0.92); }
    to { opacity: 1; transform: scale(1); }
}