/* ===== VARIABLES MODERNAS ===== */
:root {
    --primary: #00c853;
    --secondary: #00b0ff;
    --dark: #0f172a;
    --gradient: linear-gradient(135deg, #00c853, #00b0ff);
}

/* ===== PRELOADER MÁS PRO ===== */
.preloader {
    display: flex;
    align-items: center;
    justify-content: center;
}
.preloader span {
    width: 40px;
    height: 40px;
    border: 4px solid #eee;
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}
@keyframes spin {
    100% { transform: rotate(360deg); }
}

/* ===== SLIDER MODERNO ===== */
.slider-title {
    font-size: 34px;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    color: transparent;
    animation: fadeUp 1s ease forwards;
}

.main-slider h1 {
    animation: fadeUp 1.4s ease forwards;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== BOTONES MÁS LLAMATIVOS ===== */
.theme-btn {
    border-radius: 30px;
    padding: 12px 28px;
    background: var(--gradient);
    color: #fff !important;
    transition: all 0.3s ease;
    box-shadow: 0 0 0 rgba(0,0,0,0);
}

.theme-btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 10px 25px rgba(0,0,0,0.25);
}

/* ===== TARJETAS DE PLANES PRO ===== */
.price-block .inner-box {
    border-radius: 18px;
    overflow: hidden;
    background: #fff;
    transition: all 0.4s ease;
    position: relative;
}

.price-block .inner-box::before {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--gradient);
    opacity: 0;
    transition: 0.4s;
}

.price-block .inner-box:hover::before {
    opacity: 0.08;
}

.price-block .inner-box:hover {
    transform: translateY(-15px) scale(1.03);
    box-shadow: 0 20px 40px rgba(0,0,0,0.25);
}

/* ===== ENCABEZADOS DE PLANES CON GRADIENTES ===== */
.plan-1 .upper-box { background: linear-gradient(135deg,#00c853,#00e676); }
.plan-2 .upper-box { background: linear-gradient(135deg,#2196f3,#00b0ff); }
.plan-3 .upper-box { background: linear-gradient(135deg,#7c4dff,#651fff); }
.plan-4 .upper-box { background: linear-gradient(135deg,#ff7043,#ff5722); }
.plan-5 .upper-box { background: linear-gradient(135deg,#ff1744,#d50000); }
.plan-6 .upper-box { background: linear-gradient(135deg,#263238,#000); }

/* ===== SCROLL HORIZONTAL MÁS SUAVE ===== */
.pricing-row {
    display: flex;
    gap: 15px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding: 10px;
}

.pricing-row > div {
    scroll-snap-align: center;
}

/* ===== HEADER MÁS MODERNO ===== */
.main-header {
    backdrop-filter: blur(10px);
    background: rgba(15, 23, 42, 0.85);
}

/* ===== LOGO ANIMADO ===== */
.logo img {
    transition: transform 0.4s ease;
}
.logo img:hover {
    transform: rotate(3deg) scale(1.05);
}

/* ===== ICONOS CON VIDA ===== */
.social-box a {
    transition: 0.3s;
}
.social-box a:hover {
    transform: scale(1.2);
    color: var(--primary);