body {
    -webkit-font-smoothing: antialiased;
}

/* Custom triple-line E for the logo */
.logo-e {
    position: relative;
    display: inline-block;
    width: 0.7em;
    height: 0.9em;
    margin: 0 0.035em;
    vertical-align: -0.06em;
}

.logo-e::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 0.12em;
    background: currentColor;
    box-shadow: 0 0.32em 0 currentColor, 0 0.64em 0 currentColor;
    border-radius: 999px;
}

/* Noise Overlay */
.bg-noise {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 50;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='1'/%3E%3C/svg%3E");
}

/* Utilities */
.text-balance {
    text-wrap: balance;
}

.no-scrollbar::-webkit-scrollbar {
    display: none;
}

.no-scrollbar {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

/* Animation Utilities for JS triggers */
.opacity-100 {
    opacity: 1;
}

.opacity-0 {
    opacity: 0;
}

.translate-y-0 {
    transform: translateY(0);
}

.translate-y-12 {
    transform: translateY(3rem);
}

.translate-y-10 {
    transform: translateY(2.5rem);
}

.translate-x-0 {
    transform: translateX(0);
}

.-translate-x-12 {
    transform: translateX(-3rem);
}

.translate-x-12 {
    transform: translateX(3rem);
}

.-translate-x-10 {
    transform: translateX(-2.5rem);
}

.translate-x-10 {
    transform: translateX(2.5rem);
}

/* Header Scrolled State classes (applied via JS) */
.header-scrolled {
    top: 1rem !important;
}

.header-container-scrolled {
    width: 95% !important;
    max-width: 80rem !important;
    /* max-w-7xl */
    background-color: transparent !important;
    /* Transparent background */
    backdrop-filter: blur(16px) !important;
    /* Glass blur effect */
    border-radius: 1rem !important;
    /* rounded-2xl */
    padding-top: 0.75rem !important;
    /* py-3 */
    padding-bottom: 0.75rem !important;
    padding-left: 1.5rem !important;
    /* px-6 */
    padding-right: 1.5rem !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    /* border-white/10 */
    box-shadow: 0 8px 32px -4px rgba(0, 0, 0, 0.3) !important;
}

/* Mobile Menu Light Theme Utility */
.mobile-menu-light {
    background-color: rgba(255, 255, 255, 0.98);
}

.mobile-menu-light .mobile-link {
    color: #02181C !important; /* prosper-dark (Dark Teal) */
}

/* Tabs active state */
.tab-btn.active {
    background-color: #02181C; /* prosper-dark */
    color: #84CC16; /* prosper-accent (Lime) */
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    transform: scale(1.05);
}

/* Button Shimmer */
@keyframes shimmer {
    0% {
        background-position: 0 0;
    }

    100% {
        background-position: -200% 0;
    }
}

/* Accent Shine Text */
@keyframes accentShine {
    0% {
        background-position: 0% 50%;
    }

    100% {
        background-position: 200% 50%;
    }
}

@keyframes flagWave {
    0% {
        background-position: 0% 50%;
        transform: skewX(0deg);
    }
    25% {
        background-position: 50% 45%;
        transform: skewX(1deg) translateY(-2px);
    }
    50% {
        background-position: 100% 55%;
        transform: skewX(-1deg) translateY(1px);
    }
    75% {
        background-position: 50% 45%;
        transform: skewX(1deg) translateY(-1px);
    }
    100% {
        background-position: 0% 50%;
        transform: skewX(0deg);
    }
}

@keyframes heroShine {
    0% {
        background-position: 0% 50%;
    }
    80% {
        background-position: 0% 50%;
    }
    90% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.hero-title {
    background-size: 220% auto;
    text-shadow: 0 1px 6px rgba(0, 0, 0, 0.12);
    animation: heroShine 18s ease-in-out infinite;
}

/* --- MODERN PREMIUM BUTTONS (Matte Lime/Emerald Finish) --- */

.btn-premium-accent {
    /* Smooth modern matte gradient: Lime to Emerald */
    background: linear-gradient(135deg, #84CC16 0%, #65A30D 50%, #10B981 100%);
    color: #02181C;
    border: none;
    /* Diffuse neon shadow */
    box-shadow: 0 10px 25px -5px rgba(132, 204, 22, 0.4);
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    z-index: 1;
}

/* Subtle inner glow for depth */
.btn-premium-accent::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(255,255,255,0.2), transparent 60%);
    opacity: 0.5;
    pointer-events: none;
}

.btn-premium-accent:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px -5px rgba(132, 204, 22, 0.5);
    /* Brighten slightly on hover */
    filter: brightness(1.05);
}

.btn-premium-outline {
    background: rgba(255, 255, 255, 0.03);
    color: #84CC16;
    border: 1px solid rgba(132, 204, 22, 0.4);
    box-shadow: 0 4px 20px -5px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    backdrop-filter: blur(8px);
}

.btn-premium-outline:hover {
    background: rgba(132, 204, 22, 0.1);
    border-color: #84CC16;
    color: #FFF;
    transform: translateY(-3px);
    box-shadow: 0 10px 30px -5px rgba(132, 204, 22, 0.2);
}

/* Dark variant for Light Backgrounds */
.btn-premium-outline-dark {
    background: transparent;
    color: #02181C;
    border: 1px solid rgba(2, 24, 28, 0.3); /* Dark border */
    box-shadow: 0 4px 20px -5px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.btn-premium-outline-dark:hover {
    background: #02181C;
    border-color: #02181C;
    color: #84CC16; /* Lime text on hover */
    transform: translateY(-3px);
    box-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.2);
}

/* --- 3D FLIP CARD STYLES (INGENIERÍA ROBUSTA) --- */

/* El contenedor define el espacio 3D */
.perspective-1000 {
    perspective: 1000px;
}

/* El objeto interno que realmente gira */
.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275); /* Efecto rebote premium */
    transform-style: preserve-3d;
    /* Usamos Grid Stack para que las dos caras ocupen el mismo espacio exacto y el padre calcule la altura automáticamente */
    display: grid;
    grid-template-areas: "layer";
}

/* Estado Girado: Rotamos el contenedor interno */
.flip-card.flipped .flip-card-inner {
    transform: rotateY(180deg);
}

/* Estilos comunes para ambas caras */
.flip-card-front,
.flip-card-back {
    grid-area: layer; /* Ambas caras en la misma celda */
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden; /* Safari support */
    backface-visibility: hidden;
    border-radius: 2rem; /* Asegurar bordes redondeados en 3D */
    transform-style: preserve-3d;
}

/* Cara Frontal */
.flip-card-front {
    transform: rotateY(0deg);
    z-index: 2;
}

/* Cara Trasera */
.flip-card-back {
    transform: rotateY(180deg);
    z-index: 1;
}

/* --- GESTIÓN DE INTERACCIÓN (La clave para que funcione siempre) --- */

/* ESTADO NORMAL (Ver Acertijo) */
.flip-card:not(.flipped) .flip-card-front {
    pointer-events: auto; /* Permite clicks */
}
.flip-card:not(.flipped) .flip-card-back {
    pointer-events: none; /* Evita clicks fantasma en la cara oculta */
}

/* ESTADO GIRADO (Ver Solución) */
.flip-card.flipped .flip-card-front {
    pointer-events: none; /* Desactiva el frente */
}
.flip-card.flipped .flip-card-back {
    pointer-events: auto; /* Activa el reverso */
    z-index: 3; /* Trae visualmente al frente en caso de glitch de renderizado */
}

/* --- UTILITIES FOR MOBILE AI SECTION --- */
.synaptic-mobile-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(132, 204, 22, 0.15); /* Accent border */
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 20px -5px rgba(0, 0, 0, 0.5);
}