/* ==========================================================================
   SISTEMA DE DISEÑO EDITORIAL & ESTÉTICA METABÓLICA
   Proyecto: El Enemigo Silencioso - Héctor Luzón
   Vanilla CSS Moderno - Cero Emojis - Mobile-First
   ========================================================================== */

:root {
    /* Paleta Cromática */
    --bg-main: #09090A;
    --bg-surface: #111114;
    --bg-card: #15151A;
    --bg-card-hover: #1A1A22;
    --bg-parchment: #F5F1EA;
    
    --text-primary: #F0F0F2;
    --text-secondary: #9E9EA8;
    --text-muted: #686873;
    --text-on-light: #1A1A1E;
    
    --accent-coral: #FF3B1D;
    --accent-coral-deep: #E63920;
    --accent-coral-glow: rgba(255, 59, 29, 0.25);
    
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-card: rgba(255, 255, 255, 0.12);
    --border-light: rgba(0, 0, 0, 0.1);
    
    --star-gold: #FFB800;
    --success-green: #22C55E;

    /* Tipografías con fallbacks robustos */
    --font-ui: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --font-editorial: 'Cormorant Garamond', Georgia, 'Times New Roman', Times, serif;
    --font-signature: 'Alex Brush', 'Brush Script MT', 'Caveat', 'Segoe Script', cursive;
    
    /* Sombras y Elevaciones */
    --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.45);
    --shadow-glow: 0 0 28px var(--accent-coral-glow);
    --shadow-cert: 0 20px 40px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.1);

    /* Transiciones */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    font-size: 15px;
    scroll-behavior: smooth;
    background-color: var(--bg-main);
    color: var(--text-primary);
}

body {
    font-family: var(--font-ui);
    line-height: 1.6;
    background-color: var(--bg-main);
    background-image: 
        radial-gradient(circle at 50% 0%, rgba(255, 59, 29, 0.08) 0%, transparent 60%),
        linear-gradient(180deg, #09090A 0%, #0E0E12 100%);
    background-attachment: fixed;
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Contenedor general */
.container {
    width: 100%;
    max-width: 1140px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 20px;
    padding-right: 20px;
}

/* Tipografía y utilitarios */
.accent-coral {
    color: var(--accent-coral);
}

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

.max-600 {
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.max-720 {
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}

/* Kicker de Sección (Etiqueta editorial) */
.section-kicker {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
}

.section-kicker.centered {
    display: flex;
    justify-content: center;
}

.kicker-bar {
    display: inline-block;
    width: 24px;
    height: 2.5px;
    background-color: rgba(255, 255, 255, 0.22);
    border-radius: 2px;
}

.kicker-label {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.section-headline {
    font-size: 1.55rem;
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.section-description {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.55;
    margin-bottom: 24px;
}

/* Botones Principales */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: var(--font-ui);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    padding: 12px 22px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-smooth);
}

.btn-primary {
    background-color: var(--accent-coral-deep);
    background-image: linear-gradient(135deg, var(--accent-coral) 0%, var(--accent-coral-deep) 100%);
    color: #FFFFFF;
    box-shadow: 0 4px 18px var(--accent-coral-glow);
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 26px rgba(255, 59, 29, 0.45);
}

.btn-primary:active {
    transform: translateY(1px) scale(0.98);
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -100%;
    width: 60%;
    height: 200%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.22), transparent);
    transform: rotate(25deg);
    animation: btnShimmer 5s infinite cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--border-card);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-full {
    width: 100%;
}

/* ==========================================================================
   CABECERA DE MARCA
   ========================================================================== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    background: rgba(9, 9, 10, 0.85);
    border-bottom: 1px solid var(--border-subtle);
    padding: 14px 0;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-logo {
    display: flex;
    flex-direction: column;
}

.brand-sub {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    color: var(--text-muted);
}

.brand-name {
    font-size: 0.95rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: var(--text-primary);
}

.btn-header-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-card);
    color: var(--text-primary);
    font-size: 0.85rem;
    font-weight: 700;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.btn-header-cta:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.25);
    color: #FFFFFF;
}

/* ==========================================================================
   SECCIÓN HERO (ESTÉTICA EDITORIAL & MOCKUP 3D)
   ========================================================================== */
.hero-section {
    padding: 48px 0 36px 0;
    position: relative;
    overflow: hidden;
}

.hero-ambient-glow {
    position: absolute;
    top: -120px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 500px;
    background: radial-gradient(ellipse at center, rgba(255, 59, 29, 0.16) 0%, rgba(230, 44, 14, 0.04) 50%, transparent 75%);
    filter: blur(60px);
    pointer-events: none;
    z-index: 0;
    animation: ambientPulse 8s ease-in-out infinite alternate;
}

.hero-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
    z-index: 1;
}

.kicker-tag {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle);
    padding: 6px 14px;
    border-radius: 20px;
    margin-bottom: 20px;
}

.kicker-pulse {
    width: 7px;
    height: 7px;
    background: #A1A1AA;
    border-radius: 50%;
}

.kicker-text {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.hero-title {
    font-size: 1.45rem;
    font-weight: 800;
    line-height: 1.22;
    letter-spacing: -0.02em;
    color: #FFFFFF;
    margin-bottom: 10px;
    text-align: center;
    margin-top: 10px;
}

.hero-subtitle {
    font-size: 0.88rem;
    font-weight: 400;
    color: #B2B2BC;
    line-height: 1.5;
    margin-bottom: 18px;
    max-width: 560px;
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 30px;
}

.hero-meta {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.meta-punchline {
    width: 100%;
}

.punchline-quote {
    font-family: var(--font-editorial);
    font-size: 1.20rem;
    font-style: italic;
    font-weight: 600;
    color: #FFFFFF;
    line-height: 1.35;
    letter-spacing: 0.01em;
}

.meta-author-inline {
    display: flex;
    align-items: center;
    gap: 8px;
}

.meta-author-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-coral);
    box-shadow: 0 0 8px var(--accent-coral-glow);
    display: inline-block;
    flex-shrink: 0;
}

.meta-author-name {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-secondary);
}

/* ==========================================================================
   MOCKUP 3D DEL LIBRO (ESCENARIO TRIDIMENSIONAL)
   ========================================================================== */
.hero-visual {
    order: -1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin: 0 auto 6px auto;
    width: 100%;
}

.book-3d-scene {
    position: relative;
    perspective: 1200px;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 4px 0;
    width: 100%;
    max-width: 200px;
}

.book-ambient-backlight {
    position: absolute;
    width: 170px;
    height: 230px;
    background: radial-gradient(circle, rgba(255, 59, 29, 0.32) 0%, rgba(230, 44, 14, 0.08) 50%, transparent 75%);
    filter: blur(28px);
    pointer-events: none;
    z-index: 0;
    animation: ambientPulse 5s ease-in-out infinite alternate;
}

.book-3d-object {
    position: relative;
    z-index: 1;
    max-width: 175px;
    width: 100%;
    transform-style: preserve-3d;
    animation: floatBookMobile 6s ease-in-out infinite;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.book-3d-object:hover {
    animation-play-state: paused;
    transform: rotateY(-3deg) rotateX(1deg) translateY(-8px) scale(1.03);
}

.book-cover-img {
    width: 100%;
    height: auto;
    border-radius: 4px 10px 10px 4px;
    box-shadow: 
        -14px 18px 36px rgba(0, 0, 0, 0.85),
        -4px 4px 10px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.12);
    display: block;
}

.book-badge-below {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(18, 18, 22, 0.88);
    border: 1px solid rgba(255, 59, 29, 0.35);
    color: #FF5A36;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    padding: 4px 13px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.45);
    margin-top: 8px;
    text-transform: uppercase;
    position: relative;
    z-index: 2;
}

.book-badge-below .badge-dot {
    width: 5px;
    height: 5px;
    background: #A1A1AA;
    border-radius: 50%;
}

/* ==========================================================================
   SECCIÓN: EL ESPEJO BIOLÓGICO (RECONOCIMIENTO VISCERAL)
   ========================================================================== */
.symptoms-section {
    padding: 44px 0;
    background: linear-gradient(180deg, rgba(14, 14, 18, 0.4) 0%, rgba(9, 9, 10, 0.8) 100%);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.symptoms-flow {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 32px;
}

.symptom-item {
    padding: 16px 14px;
    border-bottom: 1px solid var(--border-subtle);
    border-radius: 8px;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), background 0.3s ease, border-color 0.3s ease;
}

.symptom-item:hover {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 59, 29, 0.35);
    transform: translateY(-3px);
}

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

.symptom-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.symptom-tag {
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    color: var(--text-muted);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.symptom-timing {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-muted);
}

.symptom-title {
    font-size: 1.08rem;
    font-weight: 700;
    color: #FFFFFF;
    line-height: 1.3;
    margin-bottom: 6px;
}

.symptom-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ==========================================================================
   ARTE 3: LA GRÁFICA HORMONAL DE TELEMETRÍA MÉDICA
   ========================================================================== */
.hormone-section {
    padding: 48px 0;
    background: #09090C;
    border-bottom: 1px solid var(--border-subtle);
}

.hormone-header {
    margin-bottom: 34px;
}

.hormone-chart-container {
    background: #111116;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 14px;
    padding: 24px 20px 20px 20px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
    position: relative;
    overflow: hidden;
    transition: border-color 0.4s ease, box-shadow 0.4s ease, transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.hormone-chart-container:hover {
    border-color: rgba(255, 59, 29, 0.28);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.85), 0 0 30px rgba(255, 59, 29, 0.08);
    transform: translateY(-2px);
}

.hormone-chart-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 59, 29, 0.6), transparent);
    animation: chartScanline 4.5s linear infinite;
    pointer-events: none;
    z-index: 2;
}

@keyframes chartScanline {
    0% { top: 0; opacity: 0; }
    15% { opacity: 0.9; }
    85% { opacity: 0.9; }
    100% { top: 100%; opacity: 0; }
}

.chart-top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 16px;
    margin-bottom: 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.chart-title-tag {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    color: #D4D4D8;
}

.dot-indicator {
    width: 8px;
    height: 8px;
    background: #71717A;
    border-radius: 50%;
}

.chart-meta-unit {
    font-size: 0.68rem;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 0.08em;
}

.svg-wrapper {
    width: 100%;
    overflow: hidden;
}

.hormone-svg {
    width: 100%;
    height: auto;
    display: block;
}

.chart-legend {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.legend-line {
    display: inline-block;
    width: 32px;
    height: 4px;
    border-radius: 2px;
    flex-shrink: 0;
}

.legend-sano {
    background: #71717A;
}

.legend-desregulado {
    background: var(--accent-coral);
    box-shadow: 0 0 10px rgba(255, 59, 29, 0.5);
}

.legend-text {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: #D4D4D8;
}

.chart-footer-label {
    text-align: center;
    margin-top: 24px;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.22em;
    color: var(--text-muted);
}

.bullet {
    margin: 0 8px;
    color: var(--text-muted);
}

/* ==========================================================================
   ARTE 2: CUATRO COSAS QUE ESTE LIBRO TE DEJA
   ========================================================================== */
.takeaways-section {
    padding: 44px 0;
}

.takeaways-grid-simple {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 32px;
}

.takeaway-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 14px 12px;
    border-radius: 10px;
    border-bottom: 1px solid var(--border-subtle);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), background 0.3s ease;
}

.takeaway-item:hover {
    background: rgba(255, 255, 255, 0.03);
    transform: translateY(-2px);
}

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

.takeaway-num {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--text-muted);
    line-height: 1;
    min-width: 28px;
    padding-top: 2px;
    transition: transform 0.3s ease;
}

.takeaway-item:hover .takeaway-num {
    transform: scale(1.1);
}

.takeaway-content {
    flex: 1;
}

.takeaway-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.35;
    margin-bottom: 4px;
}

.takeaway-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.takeaways-footer-label {
    text-align: center;
    margin-top: 36px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--text-muted);
}

/* ==========================================================================
   ARTE 1: CERTIFICADO DE EJEMPLAR PERSONAL (EDITORIAL MARFIL)
   ========================================================================== */
.certificate-section {
    padding: 48px 0;
    background: var(--bg-surface);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.certificate-card-outer {
    max-width: 680px;
    margin: 0 auto;
    padding: 10px;
}

.certificate-card {
    background: var(--bg-parchment);
    color: var(--text-on-light);
    border-radius: 6px;
    padding: 30px 24px;
    box-shadow: var(--shadow-cert);
    position: relative;
}

.cert-border-inner {
    border: 1px solid rgba(0, 0, 0, 0.18);
    outline: 2px solid rgba(0, 0, 0, 0.08);
    outline-offset: 4px;
    padding: 36px 24px;
    text-align: center;
}

.cert-kicker {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.22em;
    color: #6E685E;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.cert-main-title {
    font-family: var(--font-editorial);
    font-size: 2rem;
    font-weight: 700;
    color: #141416;
    letter-spacing: -0.01em;
    margin-bottom: 14px;
}

.cert-name-placeholder {
    font-family: var(--font-ui);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    color: #8C8476;
    text-transform: uppercase;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.25);
    max-width: 380px;
    margin: 0 auto 24px auto;
}

.cert-quote {
    font-family: var(--font-editorial);
    font-size: 1.22rem;
    font-style: italic;
    color: #2D2A26;
    line-height: 1.45;
    max-width: 480px;
    margin: 0 auto 28px auto;
}

.cert-signature-block {
    margin-bottom: 24px;
}

.cert-signature-img {
    height: 72px;
    width: auto;
    max-width: 220px;
    display: block;
    margin: 0 auto 6px auto;
    object-fit: contain;
}

.cert-signature-art {
    font-family: var(--font-signature);
    font-size: 2.7rem;
    font-style: normal;
    font-weight: 400;
    color: #1A1A1E;
    letter-spacing: 0.01em;
    margin-bottom: 2px;
    line-height: 1.1;
}

.cert-author-name {
    font-family: var(--font-editorial);
    font-size: 1.15rem;
    font-weight: 700;
    color: #111112;
}

.cert-author-meta {
    font-size: 0.78rem;
    font-style: italic;
    color: #6B655B;
}

.cert-bottom-brand {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.22em;
    color: #968F83;
    padding-top: 14px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.cert-cta-row {
    text-align: center;
    margin-top: 36px;
}

/* ==========================================================================
   SECCIÓN SOBRE EL AUTOR
   ========================================================================== */
.author-section {
    padding: 48px 0;
    scroll-margin-top: 70px;
}
.author-centered {
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
}

.author-avatar-wrap {
    display: flex;
    justify-content: center;
    margin: 18px 0 10px 0;
}

.author-avatar-circle {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    object-position: 50% 18%;
    border: 2px solid rgba(255, 255, 255, 0.18);
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.7), 0 0 12px rgba(255, 255, 255, 0.05);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease, border-color 0.4s ease;
}

.author-avatar-circle:hover {
    transform: scale(1.06);
    border-color: rgba(255, 59, 29, 0.5);
    box-shadow: 0 12px 32px rgba(255, 59, 29, 0.25);
}

.author-quote-wrapper {
    margin-top: 20px;
}

.author-quote {
    font-family: var(--font-editorial);
    font-size: 1.1rem;
    font-style: italic;
    color: #e8e8e8;
    line-height: 1.65;
    margin: 0;
    padding: 0;
    border: none;
}

.author-cta-wrapper {
    margin-top: 28px;
    display: flex;
    justify-content: center;
}

/* ==========================================================================
   SECCIÓN DE APORTES VOLUNTARIOS
   ========================================================================== */
.donations-section {
    padding: 48px 0;
    background: var(--bg-surface);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.donations-manifesto {
    margin-bottom: 40px;
}

.donations-manifesto p {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.5;
    margin-bottom: 14px;
}

.manifesto-sub {
    font-size: 0.96rem !important;
    font-weight: 400 !important;
    color: var(--text-secondary) !important;
    line-height: 1.6 !important;
}

.payment-cards-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.pay-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: 12px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
    transition: transform var(--transition-smooth), border-color var(--transition-smooth);
}

.pay-card:hover {
    transform: translateY(-3px);
    border-color: rgba(255, 255, 255, 0.25);
}

.pay-tag {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--text-muted);
    text-transform: uppercase;
}

.pay-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 4px 0;
}

.pay-bank {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: block;
    margin-bottom: 16px;
}

.pay-card-body {
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
    justify-content: flex-start;
}

.pay-data-row {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 0, 0, 0.25);
    padding: 8px 12px;
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.data-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.data-val {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-primary);
    word-break: break-all;
}

.data-val.mono {
    font-family: monospace;
    letter-spacing: 0.04em;
    font-size: 0.82rem;
}

.pay-note {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.4;
    margin-top: 8px;
}

/* Botón de Copiado */
.btn-copy {
    margin-left: auto;
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--text-secondary);
    width: 32px;
    height: 32px;
    border-radius: 6px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.btn-copy:hover {
    background: var(--accent-coral);
    border-color: var(--accent-coral);
    color: #FFFFFF;
}

.btn-copy.copied {
    background: var(--success-green);
    border-color: var(--success-green);
    color: #FFFFFF;
}

.copy-tooltip {
    display: none;
}

/* ==========================================================================
   SECCIÓN DE VALORACIONES Y RESEÑAS
   ========================================================================== */
.reviews-section {
    padding: 48px 0;
}

.reviews-layout {
    display: flex;
    flex-direction: column;
    gap: 40px;
    margin-top: 36px;
}

.review-form-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: 12px;
    padding: 28px;
}

.form-title, .feed-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.comment-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-input, .form-textarea {
    width: 100%;
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 6px;
    padding: 12px 14px;
    font-family: var(--font-ui);
    font-size: 0.95rem;
    color: var(--text-primary);
    outline: none;
    transition: border-color var(--transition-fast);
}

.form-input:focus, .form-textarea:focus {
    border-color: var(--accent-coral);
}

.form-input::placeholder, .form-textarea::placeholder {
    color: var(--text-muted);
}

/* Selector de Estrellas */
.star-rating-selector {
    display: flex;
    gap: 8px;
}

.star-btn {
    background: transparent;
    border: none;
    font-size: 1.35rem;
    color: rgba(255, 255, 255, 0.2);
    cursor: pointer;
    padding: 4px;
    transition: color var(--transition-fast), transform var(--transition-fast);
}

.star-btn.active {
    color: var(--star-gold);
}

.star-btn:hover {
    transform: scale(1.15);
}

.form-feedback {
    font-size: 0.88rem;
    margin-top: 8px;
    display: none;
    padding: 10px;
    border-radius: 6px;
}

.form-feedback.success {
    display: block;
    background: rgba(34, 197, 94, 0.12);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #4ADE80;
}

.form-feedback.error {
    display: block;
    background: rgba(239, 68, 68, 0.12);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #F87171;
}

/* Feed de Reseñas */
.reviews-feed-wrapper {
    display: flex;
    flex-direction: column;
}

.reviews-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-height: 540px;
    overflow-y: auto;
    padding-right: 6px;
}

.reviews-grid::-webkit-scrollbar {
    width: 5px;
}
.reviews-grid::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 4px;
}

.comment-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: 10px;
    padding: 20px;
}

.comment-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 10px;
}

.comment-author {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
}

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

.comment-stars {
    color: var(--star-gold);
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.comment-body {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.loading-reviews {
    text-align: center;
    padding: 30px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ==========================================================================
   PIE DE PÁGINA
   ========================================================================== */
.site-footer {
    background: #060607;
    border-top: 1px solid var(--border-subtle);
    padding: 36px 0 24px 0;
    color: var(--text-muted);
}

.footer-inner {
    display: flex;
    flex-direction: column;
    gap: 20px;
    text-align: center;
}

.footer-title {
    display: block;
    font-size: 0.95rem;
    font-weight: 800;
    letter-spacing: 0.15em;
    color: var(--text-primary);
}

.footer-copy {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.footer-disclaimer {
    font-size: 0.78rem;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.5;
}

.footer-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 0.85rem;
    margin: 4px 0;
}

.footer-nav a {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
    text-decoration: none;
}

.footer-nav a:hover {
    color: var(--accent-coral);
}

.footer-nav .bullet {
    color: var(--text-muted);
}

@media (max-width: 640px) {
    .footer-nav {
        flex-direction: column;
        gap: 10px;
    }

    .footer-nav .bullet {
        display: none;
    }

    .footer-nav a {
        padding: 3px 12px;
    }
}

.footer-rights {
    font-size: 0.75rem;
    color: var(--text-muted);
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* ==========================================================================
   MODAL DE 2 PASOS (DESCARGA Y CERTIFICADO)
   ========================================================================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-smooth), visibility var(--transition-smooth);
}

.modal-overlay.open {
    opacity: 1;
    visibility: visible;
}

.modal-card {
    background: #131317;
    border: 1px solid var(--border-card);
    border-radius: 16px;
    max-width: 520px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    padding: 34px 26px;
    position: relative;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.8);
    transform: scale(0.95);
    transition: transform var(--transition-smooth);
}

.modal-overlay.open .modal-card {
    transform: scale(1);
}

.modal-close-btn {
    position: absolute;
    top: 18px;
    right: 18px;
    background: rgba(255, 255, 255, 0.08);
    border: none;
    color: var(--text-secondary);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.modal-close-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #FFFFFF;
}

.modal-header {
    margin-bottom: 24px;
}

.modal-kicker {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    color: var(--text-muted);
    text-transform: uppercase;
    display: block;
    margin-bottom: 6px;
}

.modal-title {
    font-size: 1.45rem;
    font-weight: 800;
    color: #FFFFFF;
    line-height: 1.25;
    margin-bottom: 8px;
}

.modal-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.modal-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-group-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-top: 4px;
}

.form-group-checkbox input[type="checkbox"] {
    margin-top: 4px;
    accent-color: var(--accent-coral);
    width: 17px;
    height: 17px;
    cursor: pointer;
}

.form-group-checkbox label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.4;
    cursor: pointer;
}

/* Paso 2 del Modal */
.step-success-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(34, 197, 94, 0.12);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #4ADE80;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 20px;
    margin-bottom: 12px;
}

.modal-certificate-mini {
    background: var(--bg-parchment);
    color: var(--text-on-light);
    border-radius: 6px;
    padding: 16px;
    margin: 18px 0;
    text-align: center;
    border: 1px solid rgba(0, 0, 0, 0.15);
}

.cert-mini-inner {
    border: 1px solid rgba(0, 0, 0, 0.15);
    padding: 14px 10px;
}

.mini-kicker {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: #7A7264;
    display: block;
}

.mini-belongs {
    font-family: var(--font-editorial);
    font-size: 1.1rem;
    color: #302C26;
    margin-top: 2px;
}

.mini-name {
    font-size: 1.05rem;
    font-weight: 800;
    color: #111112;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin: 4px 0 6px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.2);
    display: inline-block;
    padding-bottom: 2px;
}

.mini-sig-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-top: 6px;
}

.mini-cert-sig-img {
    height: 44px;
    width: auto;
    max-width: 140px;
    display: block;
    margin: 2px auto 4px auto;
    object-fit: contain;
}

.mini-author {
    font-family: var(--font-editorial);
    font-style: italic;
    font-size: 0.85rem;
    color: #6E685E;
}

.modal-book-cta-wrapper {
    margin: 22px 0 14px 0;
    text-align: center;
}

.btn-download-giant {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: var(--accent-coral);
    background-image: linear-gradient(135deg, #FF4820 0%, #D92B10 100%);
    color: #FFFFFF;
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    padding: 18px 24px;
    border-radius: 10px;
    text-decoration: none;
    box-shadow: 0 8px 28px rgba(255, 59, 29, 0.45);
    transition: all var(--transition-smooth);
    border: none;
    cursor: pointer;
    width: 100%;
}

.btn-download-giant:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 32px rgba(255, 59, 29, 0.6);
}

.btn-subtext {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 8px;
}

.modal-actions-secondary {
    text-align: center;
    margin-bottom: 24px;
}

.btn-link-action {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: underline;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color var(--transition-fast);
}

.btn-link-action:hover {
    color: #FFFFFF;
}

.modal-contributions-accordion {
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    padding: 14px 16px;
    margin-top: 14px;
    transition: all var(--transition-smooth);
}

.modal-contributions-accordion[open] {
    background: rgba(0, 0, 0, 0.5);
    border-color: rgba(255, 255, 255, 0.15);
}

.modal-contrib-summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    list-style: none;
    user-select: none;
    gap: 12px;
}

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

.modal-contrib-summary .summary-text {
    flex: 1;
    text-align: left;
}

.modal-contrib-title {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.modal-contrib-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.4;
    margin: 0;
}

.modal-contrib-accordion .accordion-icon {
    font-size: 0.85rem;
    color: var(--text-muted);
    transition: transform var(--transition-smooth);
    flex-shrink: 0;
}

.modal-contributions-accordion[open] .accordion-icon {
    transform: rotate(180deg);
    color: var(--accent-coral);
}

.modal-contrib-body {
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.modal-quick-pays {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.quick-pay-item {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.03);
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 0.78rem;
}

.qp-name {
    color: var(--text-muted);
    font-weight: 600;
}

.qp-val {
    color: var(--text-primary);
    font-weight: 600;
    margin-right: auto;
}

.btn-copy-mini {
    width: 26px;
    height: 26px;
    font-size: 0.75rem;
}

/* ==========================================================================
   SECCIÓN PUENTE: TARJETAS EXPLICATIVAS (APORTES Y RESEÑAS)
   ========================================================================== */
.bridge-unified-section {
    padding: 44px 0;
    background: var(--bg-surface);
    border-top: 1px solid var(--border-subtle);
}

.bridge-unified-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 36px;
}

.bridge-unified-col {
    display: flex;
    flex-direction: column;
}

.bridge-unified-title {
    font-family: var(--font-editorial);
    font-size: 1.35rem;
    font-weight: 700;
    line-height: 1.25;
    color: var(--text-primary);
    margin: 8px 0 10px 0;
}

.bridge-unified-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.55;
    margin-bottom: 20px;
}

.bridge-unified-divider {
    height: 1px;
    background: var(--border-subtle);
    width: 100%;
}

.bridge-cta-row {
    display: flex;
    align-items: center;
    gap: 16px;
}

.page-back-cta {
    margin-top: 50px;
}

.inner-page .site-header {
    position: sticky;
    top: 0;
    background: rgba(9, 9, 10, 0.92);
    backdrop-filter: blur(12px);
    z-index: 100;
    border-bottom: 1px solid var(--border-subtle);
}

.inner-page .page-main {
    min-height: calc(100vh - 180px);
}

/* ==========================================================================
   RESPONSIVE DESIGN (TABLETS & DESKTOP)
   ========================================================================== */
@media (min-width: 641px) and (max-width: 1023px) {
    html {
        font-size: 17px;
    }

    body {
        line-height: 1.65;
    }

    .container {
        padding-left: 28px;
        padding-right: 28px;
    }

    .hero-title {
        font-size: 2.2rem;
        line-height: 1.2;
    }

    .hero-subtitle {
        font-size: 1.05rem;
        max-width: 640px;
    }

    .section-headline {
        font-size: 2.3rem;
    }

    .section-description {
        font-size: 1.05rem;
    }

    .modal-card {
        padding: 40px 32px;
        max-width: 580px;
    }

    .modal-title {
        font-size: 1.6rem;
    }

    .modal-desc {
        font-size: 1rem;
    }

    .lead-field-input {
        font-size: 1.05rem;
        padding: 14px 18px;
    }

    .btn {
        font-size: 1rem;
        padding: 15px 28px;
    }

    .feature-title {
        font-size: 1.05rem;
    }

    .feature-desc {
        font-size: 0.95rem;
    }

    .symptom-title {
        font-size: 1.25rem;
    }

    .symptom-desc {
        font-size: 0.98rem;
    }
}

@media (min-width: 768px) {
    .btn {
        font-size: 0.95rem;
        padding: 14px 26px;
    }

    .section-headline {
        font-size: 2.5rem;
        margin-bottom: 16px;
    }

    .section-description {
        font-size: 1.05rem;
        margin-bottom: 36px;
    }

    .hero-section {
        padding: 70px 0 90px 0;
    }

    .symptoms-section {
        padding: 85px 0;
    }

    .hormone-section {
        padding: 85px 0;
    }

    .takeaways-section {
        padding: 75px 0;
    }

    .certificate-section {
        padding: 80px 0;
    }

    .author-section {
        padding: 85px 0;
    }

    .donations-section {
        padding: 85px 0;
    }

    .reviews-section {
        padding: 85px 0;
    }

    .bridge-unified-section {
        padding: 70px 0;
    }

    .site-footer {
        padding: 50px 0 30px 0;
    }

    .hero-grid {
        display: grid;
        grid-template-columns: 1.15fr 0.85fr;
        align-items: center;
        gap: 60px;
    }

    .hero-content {
        order: 1;
    }

    .hero-visual {
        order: 2;
        margin: 0;
    }

    .book-3d-scene {
        max-width: 380px;
        padding: 20px 10px;
    }

    .book-ambient-backlight {
        width: 320px;
        height: 440px;
        filter: blur(45px);
    }

    .book-3d-object {
        max-width: 300px;
        animation: floatBookDesktop 6s ease-in-out infinite;
    }

    .book-3d-object:hover {
        animation-play-state: paused;
        transform: rotateY(-8deg) rotateX(2deg) translateY(-14px) scale(1.03);
    }

    .hero-title {
        font-size: 3.1rem;
        line-height: 1.15;
        letter-spacing: -0.035em;
        margin-bottom: 20px;
        text-align: left;
    }

    .hero-subtitle {
        font-size: 1.12rem;
        line-height: 1.6;
        margin-bottom: 32px;
        text-align: left;
        margin-left: 0;
        margin-right: 0;
    }

    .hero-actions {
        flex-direction: row;
        gap: 14px;
        margin-bottom: 40px;
    }

    .punchline-quote {
        font-size: 1.18rem;
        line-height: 1.35;
    }

    .symptoms-flow {
        grid-template-columns: repeat(3, 1fr);
        gap: 32px;
    }

    .symptom-item {
        padding: 0 20px 0 0;
        border-bottom: none;
        border-right: 1px solid var(--border-subtle);
    }

    .symptom-item:last-child {
        border-right: none;
    }

    .symptom-title {
        font-size: 1.15rem;
        margin-bottom: 8px;
    }

    .symptom-desc {
        font-size: 0.9rem;
        line-height: 1.6;
    }

    .author-quote {
        font-size: 1.25rem;
        line-height: 1.6;
    }

    .chart-legend {
        flex-direction: row;
        justify-content: center;
        gap: 32px;
    }

    .takeaways-grid-simple {
        grid-template-columns: repeat(2, 1fr);
        gap: 28px 48px;
    }

    .takeaway-item {
        border-bottom: none;
        padding: 0;
    }

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

    .bridge-unified-grid {
        grid-template-columns: 1fr auto 1fr;
        gap: 48px;
        align-items: stretch;
    }

    .bridge-unified-divider {
        width: 1px;
        height: auto;
    }

    .bridge-unified-title {
        font-size: 1.6rem;
    }

    .bridge-unified-desc {
        font-size: 0.95rem;
        line-height: 1.6;
        margin-bottom: 22px;
    }

    .reviews-layout {
        display: grid;
        grid-template-columns: 1fr 1.2fr;
        gap: 40px;
        align-items: start;
    }
}

@media (min-width: 1024px) {
    .takeaways-grid-simple {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-title {
        font-size: 3.4rem;
    }

    .book-3d-object {
        max-width: 340px;
    }
}

/* ==========================================================================
   SISTEMA DE ANIMACIONES DINÁMICAS Y SCROLL REVEAL
   ========================================================================== */
.fade-in-up {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 0.75s cubic-bezier(0.16, 1, 0.3, 1), transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: opacity, transform;
}

.fade-in-up.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes floatBookMobile {
    0%, 100% {
        transform: rotateY(-8deg) rotateX(2deg) translateY(0px);
    }
    50% {
        transform: rotateY(-6deg) rotateX(4deg) translateY(-8px);
    }
}

@keyframes floatBookDesktop {
    0%, 100% {
        transform: rotateY(-12deg) rotateX(4deg) translateY(0px);
    }
    50% {
        transform: rotateY(-9deg) rotateX(6deg) translateY(-12px);
    }
}

@keyframes ambientPulse {
    0%, 100% {
        opacity: 0.75;
        transform: scale(0.98);
    }
    50% {
        opacity: 1;
        transform: scale(1.06);
    }
}

@keyframes btnShimmer {
    0%, 70% { left: -100%; }
    100% { left: 200%; }
}

/* ==========================================================================
   SECCIÓN NUESTROS PLANES (ESTÉTICA MINIMALISTA & EDITORIAL)
   ========================================================================== */
.plans-section {
    padding: 90px 0;
    background: var(--bg-main);
    border-top: 1px solid var(--border-subtle);
    position: relative;
}

.plans-subheadline {
    max-width: 680px;
    margin: 16px auto 48px;
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.6;
}

.plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    max-width: 960px;
    margin: 0 auto;
}

.plan-card {
    background: var(--bg-card);
    border-radius: 14px;
    padding: 36px 30px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition-smooth);
    position: relative;
}

.plan-card:hover {
    transform: translateY(-4px);
}

.plan-card.plan-contragolpe {
    border: 1px solid rgba(255, 255, 255, 0.14);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
}

.plan-card.plan-contragolpe:hover {
    border-color: rgba(255, 255, 255, 0.28);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.65);
}

.plan-card.plan-premium {
    border: 1.5px solid rgba(212, 175, 55, 0.28);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.55);
}

.plan-card.plan-premium:hover {
    border-color: rgba(212, 175, 55, 0.6);
    box-shadow: 0 16px 40px rgba(212, 175, 55, 0.12);
}

.plan-tag {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 12px;
    display: inline-block;
}

.plan-contragolpe .plan-tag {
    color: #9CA3AF;
}

.plan-premium .plan-tag {
    color: #D4AF37;
    font-weight: 800;
    text-shadow: 0 0 12px rgba(212, 175, 55, 0.25);
}

.plan-title-price-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 24px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--border-subtle);
    gap: 12px;
}

.plan-title {
    font-family: var(--font-ui);
    font-size: 1.45rem;
    font-weight: 700;
    color: #FFFFFF;
    line-height: 1.25;
}

.plan-price {
    font-size: 1.85rem;
    font-weight: 800;
    white-space: nowrap;
}

.plan-contragolpe .plan-price {
    color: #FFFFFF;
}

.plan-premium .plan-price {
    color: #FFFFFF;
}

.plan-currency {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.plan-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 36px;
}

.plan-features li {
    display: flex;
    flex-direction: column;
}

.feature-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.plan-contragolpe .feature-title i {
    color: #9CA3AF;
    font-size: 0.5rem;
}

.plan-premium .feature-title i {
    color: #9CA3AF;
    font-size: 0.5rem;
}

.feature-desc {
    font-size: 0.88rem;
    font-style: italic;
    color: var(--text-secondary);
    margin-left: 16px;
    margin-top: 4px;
    line-height: 1.45;
}

.btn-plan-contragolpe {
    font-family: var(--font-ui) !important;
    background: var(--accent-coral);
    color: #FFFFFF !important;
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    padding: 15px 24px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    text-decoration: none;
    transition: var(--transition-fast);
    box-shadow: 0 4px 18px rgba(255, 59, 29, 0.35);
}

.btn-plan-contragolpe:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 59, 29, 0.5);
    background: var(--accent-coral-deep);
}

.btn-plan-premium {
    font-family: var(--font-ui) !important;
    background: linear-gradient(135deg, #ECC86A 0%, #C8992D 100%);
    color: #0E0E12 !important;
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 0.95rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    padding: 15px 24px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    text-decoration: none;
    transition: var(--transition-fast);
    box-shadow: 0 4px 18px rgba(200, 153, 45, 0.35);
}

.btn-plan-premium:hover {
    background: linear-gradient(135deg, #F5D37E 0%, #D8A636 100%);
    box-shadow: 0 8px 26px rgba(200, 153, 45, 0.5);
    transform: translateY(-2px);
    color: #000000 !important;
}

/* ==========================================================================
   BOTÓN FLOTANTE WHATSAPP (MINIMALISTA)
   ========================================================================== */
.btn-floating-wa {
    position: fixed;
    bottom: 22px;
    right: 22px;
    width: 44px;
    height: 44px;
    background: #25D366;
    color: #FFFFFF !important;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.45rem;
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.45), 0 2px 6px rgba(0, 0, 0, 0.35);
    z-index: 9999;
    text-decoration: none;
    transition: transform 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.25s ease, background-color 0.25s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-floating-wa:hover {
    transform: scale(1.12);
    background: #20BA5A;
    box-shadow: 0 6px 24px rgba(37, 211, 102, 0.65), 0 4px 10px rgba(0, 0, 0, 0.4);
    color: #FFFFFF !important;
}

.btn-floating-wa:active {
    transform: scale(0.92);
}