/* ==========================================================================
   SignalTechno - Premium Light Design System
   ========================================================================== */

   :root {
    /* Color Palette based on Banner */
    --clr-bg: #F4F9FF; /* Very light blue/white */
    --clr-surface: #FFFFFF; /* Pure white */
    --clr-primary: #0047BA; /* Royal Blue */
    --clr-primary-dark: #0B2149; /* Navy Blue */
    --clr-accent: #00C4FF; /* Tech Cyan */
    --clr-text-main: #1F2937; /* Dark slate */
    --clr-text-muted: #4B5563; /* Medium slate */
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing & Layout */
    --container-width: 1400px;
    --section-pad: 6rem 1.5rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--clr-bg);
    color: var(--clr-text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Typography Utilities */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--clr-primary-dark);
}

.text-gradient {
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.nav-links a.btn-primary-sm:hover {
    color: white;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--clr-text-main);
    z-index: 1000;
}
.navbar.dark-theme .mobile-menu-btn {
    color: white;
}

/* ==========================================================================
   Components
   ========================================================================== */

/* Buttons */
.btn-primary, .btn-secondary, .btn-primary-sm {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    border-radius: 999px;
    font-weight: 600;
    transition: var(--transition-fast);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--clr-primary), #0066FF);
    color: white;
    padding: 1rem 2rem;
    box-shadow: 0 4px 15px rgba(0, 71, 186, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 71, 186, 0.4);
    color: white;
}

.btn-primary-sm {
    background: var(--clr-primary);
    color: white;
    padding: 0.6rem 1.5rem;
    font-size: 0.95rem;
}

.btn-primary-sm:hover {
    background: var(--clr-primary-dark);
}

.btn-secondary {
    background: white;
    color: var(--clr-primary);
    padding: 1rem 2rem;
    border: 2px solid var(--clr-primary);
}

.btn-secondary:hover {
    background: var(--clr-bg);
}

/* Glassmorphism Card */
.glass-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 24px;
    box-shadow: 0 10px 40px rgba(11, 33, 73, 0.08);
}

/* ==========================================================================
   Layout & Sections
   ========================================================================== */

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition-smooth);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--clr-primary-dark);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo span {
    color: var(--clr-primary);
    font-weight: 400;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-links a:not(.btn-primary-sm) {
    color: var(--clr-text-main);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
}

.nav-links a:not(.btn-primary-sm):hover {
    color: var(--clr-primary);
}

/* Dark Theme Navbar (When on dark slide and not scrolled) */
.navbar.dark-theme:not(.scrolled) .nav-links a:not(.btn-primary-sm) {
    color: white;
}
.navbar.dark-theme:not(.scrolled) .nav-links a:not(.btn-primary-sm):hover {
    color: var(--clr-accent);
}
.navbar.dark-theme:not(.scrolled) .logo {
    color: white;
}
.navbar.dark-theme:not(.scrolled) .logo span {
    color: var(--clr-accent);
}
.navbar.dark-theme:not(.scrolled) .nav-logo-img {
    filter: brightness(0) invert(1);
}

.nav-logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
    transition: var(--transition-fast);
}

/* Hero Carousel Section */
.hero {
    position: relative;
    padding-top: 0; /* Quitamos el padding para que la imagen empiece desde el tope de la pantalla */
    height: 100vh;  /* Pantalla completa */
    min-height: 600px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--clr-bg);
}

.carousel-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.8s ease-in-out;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.carousel-slide.active {
    opacity: 1;
}

.carousel-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, rgba(255,255,255,0.95) 0%, rgba(255,255,255,0.7) 50%, rgba(255,255,255,0.2) 100%);
    z-index: 1;
}

.hero-container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.badge {
    display: inline-block;
    padding: 0.5rem 1.2rem;
    background: rgba(0, 196, 255, 0.1);
    color: var(--clr-primary);
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(0, 196, 255, 0.3);
}

.hero h1 {
    font-size: 4.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero p {
    font-size: 1.2rem;
    color: var(--clr-text-muted);
    margin-bottom: 2.5rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
}

.mascot-img {
    max-width: 100%;
    height: auto;
    animation: float 6s ease-in-out infinite;
    filter: drop-shadow(0 20px 30px rgba(0, 71, 186, 0.15));
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}


/* About Section Redesign */
.about-section {
    padding: var(--section-pad);
    background: var(--clr-surface);
}

.about-header {
    text-align: center;
    max-width: 1100px;
    margin: 0 auto 4rem;
}

.about-header h2 {
    font-size: 2.8rem;
    margin-bottom: 1.5rem;
}

.about-header .lead {
    font-size: 1.3rem;
    color: var(--clr-primary-dark);
    margin-bottom: 1rem;
}

.about-header p {
    font-size: 1.1rem;
    color: var(--clr-text-muted);
    margin-bottom: 1.5rem;
}

.mission-box {
    background: var(--clr-bg);
    border-left: 4px solid var(--clr-primary);
    padding: 2rem;
    border-radius: 0 15px 15px 0;
    text-align: left;
    margin-top: 3rem;
}

.mission-box h3 {
    color: var(--clr-primary);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.values-section h3 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 3rem;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1100px;
    margin: 0 auto 4rem;
}

.value-card {
    background: white;
    border: 1px solid rgba(0, 71, 186, 0.1);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.02);
    transition: var(--transition-smooth);
}

.value-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 71, 186, 0.08);
    border-color: var(--clr-accent);
}

.value-card h4 {
    color: var(--clr-primary);
    font-size: 1.3rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 10px;
}
.value-card h4::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background: var(--clr-accent);
    border-radius: 50%;
}

.value-card p {
    color: var(--clr-text-muted);
    font-size: 0.95rem;
}

.team-section {
    background: linear-gradient(135deg, var(--clr-primary-dark), var(--clr-primary));
    padding: 4rem;
    border-radius: 20px;
    color: white;
    text-align: center;
    max-width: 1100px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
}

.team-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 196, 255, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.team-section h3 {
    color: white;
    font-size: 2rem;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 2;
}

.team-section p {
    color: rgba(255,255,255,0.85);
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
    z-index: 2;
}

.team-section .highlight {
    font-size: 1.3rem;
    color: white;
    margin-top: 2rem;
    margin-bottom: 0;
}


/* Services / Pricing Grid */
.features {
    padding: var(--section-pad);
    background: var(--clr-bg);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-header h2 {
    font-size: 2.8rem;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--clr-text-muted);
}

.pricing-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.pricing-card {
    flex: 1 1 320px;
    max-width: 420px;
    background: white;
    border-radius: 20px;
    padding: 2.5rem 2rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    border: 1px solid rgba(0, 71, 186, 0.1);
    position: relative;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
}

.pricing-card.fade-up.visible:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 71, 186, 0.15);
    border-color: var(--clr-accent);
}

.pricing-card.popular {
    border-color: var(--clr-primary);
    box-shadow: 0 15px 40px rgba(0, 71, 186, 0.1);
    transform: scale(1.05);
    overflow: visible;
}

.pricing-card.popular.fade-up.visible:hover {
    transform: scale(1.05) translateY(-10px);
}

.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
    color: white;
    padding: 5px 20px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    white-space: nowrap;
    z-index: 5;
}

.pricing-header {
    text-align: center;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    margin-bottom: 2rem;
}

.pricing-header h3 {
    font-size: 1.5rem;
    color: var(--clr-text-main);
    margin-bottom: 1rem;
    font-weight: 800;
}
.pricing-header h3 span {
    color: var(--clr-primary);
}

.price-box {
    margin-bottom: 1.5rem;
}

.price-box .currency {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--clr-text-muted);
    text-transform: uppercase;
    margin-bottom: 2px;
}

.price-row {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 8px;
}

.price-row .amount {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--clr-primary-dark);
}

.price-row .period {
    font-size: 1rem;
    color: var(--clr-text-muted);
    white-space: nowrap;
}

.badge-outline {
    display: inline-block;
    padding: 4px 15px;
    border: 1px solid var(--clr-accent);
    color: var(--clr-primary-dark);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    background: rgba(0, 196, 255, 0.05);
}

.pricing-features {
    list-style: none;
    margin-bottom: 2rem;
    flex-grow: 1;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 1rem;
    color: var(--clr-text-muted);
    font-size: 0.95rem;
}

.pricing-features li svg {
    color: var(--clr-accent);
    flex-shrink: 0;
}

.pricing-footer {
    text-align: center;
    margin-top: auto;
}

.tech-req {
    font-size: 0.85rem;
    color: var(--clr-text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 5px;
}

.tech-req svg {
    color: var(--clr-primary);
}

.w-100 {
    width: 100%;
}
.mt-3 {
    margin-top: 1.5rem;
}

/* Success Stories / Marquee */
.success-stories {
    padding: var(--section-pad);
    background: var(--clr-surface);
    overflow: hidden;
}

.logos-marquee {
    position: relative;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    overflow: hidden;
    padding: 3rem 0;
    background: var(--clr-bg);
}

.logos-track {
    display: flex;
    gap: 2.5rem;
    width: max-content;
    animation: scroll 30s linear infinite;
}

.logo-item {
    padding: 1rem 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.logo-item h3 {
    margin: 0;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--clr-text-muted);
    white-space: nowrap;
}

.logo-item img {
    height: 80px;
    width: auto;
    object-fit: contain;
    transition: var(--transition-fast);
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* CTA Section */
.cta-section {
    padding: var(--section-pad);
    background: var(--clr-bg);
}

.cta-card {
    background: linear-gradient(135deg, var(--clr-primary-dark), var(--clr-primary));
    border-radius: 30px;
    padding: 5rem 3rem;
    text-align: center;
    box-shadow: 0 20px 50px rgba(0, 71, 186, 0.2);
    position: relative;
    overflow: hidden;
}

.cta-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 196, 255, 0.2) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-card h2 {
    color: white;
    font-size: 3rem;
    position: relative;
    z-index: 2;
}

.cta-card p {
    color: rgba(255,255,255,0.8);
    font-size: 1.2rem;
    margin-bottom: 2rem;
    position: relative;
    z-index: 2;
}

.cta-info {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
    position: relative;
    z-index: 2;
}

.cta-contact-box {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    padding: 1.5rem 2rem;
    border-radius: 15px;
    border: 1px solid rgba(255,255,255,0.2);
    color: white;
    text-align: left;
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
    transition: var(--transition-fast);
}

.cta-contact-box:hover {
    background: rgba(255,255,255,0.15);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}
.cta-contact-box h4 {
    color: var(--clr-accent);
    margin-bottom: 0.2rem;
    font-size: 1rem;
}
.cta-contact-box span {
    font-size: 1.4rem;
    font-weight: 700;
}


/* Footer */
footer {
    background: var(--clr-primary-dark);
    color: white;
    padding: 5rem 0 2rem;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    margin-bottom: 4rem;
    flex-wrap: wrap;
    gap: 3rem;
}

.footer-brand .logo {
    color: white;
}
.footer-brand .logo span {
    color: var(--clr-accent);
}

.footer-brand p {
    color: rgba(255,255,255,0.6);
    margin: 1.5rem 0;
    max-width: 350px;
}

.footer-links {
    display: flex;
    gap: 4rem;
}

.link-group h4 {
    color: white;
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

.link-group a {
    display: block;
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    margin-bottom: 0.8rem;
    transition: var(--transition-fast);
}

.link-group a:hover {
    color: var(--clr-accent);
    transform: translateX(5px);
}

.footer-bottom {
    text-align: center;
    color: rgba(255,255,255,0.4);
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
}

/* Scroll Animations */
.fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.delay-1 { transition-delay: 0.2s; }
.delay-2 { transition-delay: 0.4s; }

/* ============================================================
   RESPONSIVE — Tablet (≤992px) | Mobile (≤768px) | XS (≤480px)
   ============================================================ */

/* --- Tablet (≤992px) --- */
@media (max-width: 992px) {

    /* Hero */
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero h1 { font-size: 3.5rem; }
    .hero-actions { justify-content: center; }
    .hero-visual { display: none; }
    .carousel-overlay {
        background: rgba(255,255,255,0.92);
    }

    /* About */
    .about-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    /* Pricing cards — 2 por fila */
    .pricing-grid {
        gap: 1.5rem;
    }
    .pricing-card.popular {
        transform: scale(1);
    }
    .pricing-card.popular.fade-up.visible:hover {
        transform: translateY(-10px);
    }

    /* CTA botones */
    .cta-info {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    .cta-contact-box {
        width: 100%;
        max-width: 380px;
        justify-content: center;
    }

    /* Footer */
    .footer-container {
        flex-direction: column;
        align-items: flex-start;
    }
    .footer-links {
        flex-wrap: wrap;
        gap: 2.5rem;
    }
}

/* --- Mobile (≤768px) --- */
@media (max-width: 768px) {

    /* Navbar hamburguesa */
    .mobile-menu-btn { display: block; }
    .nav-links {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--clr-surface);
        padding: 2rem;
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        clip-path: circle(0% at top right);
        transition: clip-path 0.4s ease-in-out;
        gap: 1.5rem;
        z-index: 999;
    }
    .nav-links.active { clip-path: circle(150% at top right); }
    .navbar.dark-theme .nav-links { background: var(--clr-primary-dark); }

    /* Hero */
    .hero { min-height: 500px; }
    .hero h1 { font-size: 2.4rem; }
    .hero p { font-size: 1rem; }
    .hero-actions { flex-direction: column; align-items: center; }
    .hero-actions .btn-primary, .hero-actions .btn-secondary { width: 100%; max-width: 280px; justify-content: center; }

    /* Headings */
    .about-content h2, .section-header h2, .about-header h2 { font-size: 2rem; }
    .cta-card h2 { font-size: 1.8rem; }
    .section-header p { font-size: 1rem; }

    /* About */
    .about-header { margin-bottom: 2.5rem; }
    .team-section { padding: 2.5rem 1.5rem; }

    /* Pricing — 1 tarjeta por fila en móvil */
    .pricing-card {
        flex: 1 1 100%;
        max-width: 100%;
        overflow: visible;
        margin-top: 20px; /* espacio para el badge */
    }
    .pricing-card.popular {
        transform: scale(1);
        margin-top: 25px;
    }
    .popular-badge {
        top: -18px;
        font-size: 0.78rem;
        padding: 4px 14px;
        letter-spacing: 0.5px;
    }
    .price-row { flex-wrap: wrap; justify-content: center; }
    .price-row .amount { font-size: 2rem; }
    .price-row .period { font-size: 0.9rem; white-space: normal; text-align: center; }

    /* CTA Section */
    .cta-card { padding: 2.5rem 1.2rem; }
    .cta-info {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }
    .cta-contact-box {
        width: 100%;
        max-width: 100%;
        padding: 1rem 1.5rem;
        justify-content: flex-start;
        gap: 0.8rem;
    }
    .cta-contact-box span { font-size: 1.1rem; }
    .cta-contact-box svg { width: 24px; height: 24px; }

    /* Carrusel logos */
    .logo-item {
        min-width: 220px !important;
        padding: 12px 18px !important;
        gap: 10px !important;
    }
    .logo-item img { max-width: 90px !important; max-height: 55px !important; }
    .logo-item h3 { font-size: 1rem !important; }

    /* Footer */
    .footer-links { flex-direction: column; gap: 2rem; }
    footer { padding: 3rem 0 2rem; }
}

/* --- Extra Small Mobile (≤480px) --- */
@media (max-width: 480px) {
    .hero h1 { font-size: 2rem; }
    .logo { font-size: 1.3rem; }
    .nav-logo-img { height: 30px; }
    .section-header h2, .about-header h2 { font-size: 1.7rem; }
    .cta-card h2 { font-size: 1.5rem; }
    .values-grid { grid-template-columns: 1fr; }
    .cta-contact-box { padding: 0.8rem 1rem; }
    .cta-contact-box h4 { font-size: 0.85rem; }
    .cta-contact-box span { font-size: 1rem; }
    .logos-marquee { padding: 1.5rem 0; }
    .logo-item {
        min-width: 190px !important;
        padding: 10px 14px !important;
    }
    .logo-item img { max-width: 75px !important; max-height: 45px !important; }
    .logo-item h3 { font-size: 0.9rem !important; }
}

/* 3D Flip Modal para características */
#flip-modal-overlay {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s;
    display: flex;
    align-items: center;
    justify-content: center;
    perspective: 2000px;
    padding: 1rem;
    box-sizing: border-box;
}
#flip-modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

#flip-modal-card {
    width: 95vw;
    height: 90vh;
    max-width: 1200px;
    max-height: 90dvh; /* Dynamic viewport height para móviles con barra de URL */
    transform-style: preserve-3d;
    transition: transform 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
    transform: rotateY(-180deg) scale(0.5);
    position: relative;
}

#flip-modal-overlay.active #flip-modal-card {
    transform: rotateY(0deg) scale(1);
}

#flip-modal-back {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: white;
    border-radius: 20px;
    padding: 2rem 2.5rem;
    box-shadow: 0 25px 50px rgba(0,0,0,0.2);
    border: 3px solid var(--clr-primary);
    backface-visibility: hidden;
    display: flex;
    flex-direction: column;
    overflow: hidden; /* Contiene el scroll dentro */
}

.btn-close-modal {
    background: transparent;
    border: 2px solid rgba(0,71,186,0.15);
    color: var(--clr-text-muted);
    font-size: 1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    align-self: flex-start;
    transition: color 0.3s, border-color 0.3s;
    border-radius: 30px;
    padding: 0.4rem 1rem;
    margin-bottom: 0.5rem;
    flex-shrink: 0; /* No se encoge */
}
.btn-close-modal:hover {
    color: var(--clr-accent);
    border-color: var(--clr-accent);
}

.modal-content-container {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch; /* Scroll táctil suave en iOS */
    overscroll-behavior: contain;
    margin-top: 0.5rem;
    padding-right: 8px;
    padding-bottom: 1rem;
}
.modal-content-container h3 {
    font-size: 2rem;
    color: var(--clr-text-main);
    margin-bottom: 1.5rem;
    text-align: center;
}
.modal-content-container h3 span {
    color: var(--clr-primary);
}
.modal-content-container .pricing-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.2rem;
}

/* Modal en Móvil */
@media (max-width: 768px) {
    #flip-modal-overlay {
        align-items: flex-end; /* El modal sube desde abajo en móvil */
        padding: 0;
        perspective: none; /* Desactivar 3D en móvil para evitar descuadres */
    }
    #flip-modal-card {
        width: 100vw;
        height: 92dvh;
        max-height: 92dvh;
        transform: translateY(100%); /* Entra deslizándose desde abajo */
        transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
        transform-style: flat;
        border-radius: 20px 20px 0 0;
    }
    #flip-modal-overlay.active #flip-modal-card {
        transform: translateY(0);
    }
    #flip-modal-back {
        border-radius: 20px 20px 0 0;
        padding: 1.2rem 1.2rem 2rem;
        border-width: 2px;
        border-bottom: none;
    }
    .modal-content-container h3 {
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }
    .modal-content-container .pricing-features {
        grid-template-columns: 1fr; /* Una columna en móvil */
        gap: 0.8rem;
    }
    .modal-content-container .pricing-features li {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    #flip-modal-card { height: 95dvh; max-height: 95dvh; }
    #flip-modal-back { padding: 1rem 1rem 2rem; }
    .modal-content-container h3 { font-size: 1.3rem; }
}