:root { 
    --accent: #00c6a7;
    --accent-light: #00ffe1;
    --dark-bg: #0e0e11;
    --light-bg: #1a1a1e;
    --text-primary: #ffffff;
    --text-secondary: #9b9b9b;
    --border-color: #2a2a2f;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
}

a {
    text-decoration: none;
}

#tsparticles {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
}

.resalt {
    color: var(--accent-light);
}

.description a {
    text-decoration: list-style;
}

.shape {
    position: absolute;
    background-color: var(--accent);
    opacity: 0.7;
}

.circle {
    border-radius: 50%;
}

.square {
    border-radius: 4px;
}

.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border-color);
    background-color: rgba(15, 15, 20, 0.8);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    max-width: 120px;
}

.header-button {
    background-color: transparent;
    border: 1px solid var(--accent);
    color: var(--accent);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.header-button:hover {
    background-color: var(--accent);
    color: #000;
}

.container {
    width: 100%;
    margin: 0 auto;
    padding: 120px 2rem 4rem 2rem;
    text-align: center;
}

.title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.description {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 2.5rem auto;
    color: var(--text-secondary);
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.plan-toggle {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--text-secondary);
    transition: .4s;
    border-radius: 26px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--accent);
}

input:checked + .slider:before {
    transform: translateX(24px);
}

.toggle-label {
    font-weight: 500;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

.toggle-label.active {
    color: var(--text-primary);
}

.tiers {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2.5rem;
    align-items: flex-start;
}

.card {
    background-color: var(--light-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2.5rem 2rem;
    width: 320px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.card h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--accent);
}

.price-container {
    min-height: 80px;
}

.price {
    font-size: 2.5rem;
    font-weight: 700;
}

.price-period {
    font-size: 1rem;
    color: var(--text-secondary);
}

.card ul {
    list-style: none;
    text-align: left;
    margin-bottom: 2rem;
    padding: 0;
    padding-right: 10px;
}

.card ul li {
    margin-bottom: 0.75rem;
    padding-left: 1.5rem;
    position: relative;
}

.card ul li::before {
    content: '✔';
    color: var(--accent);
    position: absolute;
    left: 0;
}

.subscribe-btn {
    background-color: var(--accent);
    color: #000;
    border: none;
    padding: 0.9rem 1.5rem;
    border-radius: 8px;
    font-weight: 700;
    cursor: pointer;
    width: 100%;
    font-size: 1rem;
    transition: all 0.3s ease;
    margin-top: 1rem;
    margin-bottom: 2rem;
    min-height: 54px;
}

.subscribe-btn:hover {
    background-color: #fff;
}

.subscribe-btn.current-plan {
    background-color: #2ecc71;
    color: white;
    border-color: #27ae60;
    cursor: not-allowed;
    opacity: 0.8;
}

.annual-view {
    display: none;
}

.price-old {
    text-decoration: line-through;
    color: var(--text-secondary);
    font-size: 1rem;
    margin-right: 0.5rem;
}

.discount-badge {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    color: #000;
    background-color: var(--accent);
    padding: 4px 8px;
    border-radius: 12px;
    margin: 0.5rem auto 0;
    max-width: 120px;
}

.card.show-annual .annual-view {
    display: block;
}

.card.show-annual .monthly-view {
    display: none;
}

.card.selected {
    border-color: var(--accent-light);
    box-shadow: 0 0 25px rgba(0, 255, 200, 0.5);
    transform: scale(1.03);
}

.card .subscribe-btn:disabled {
    background-color: #555;
    border-color: #555;
    color: #aaa;
    cursor: not-allowed;
}

#tier-avanzado {
    animation: glow-gold 4s ease-in-out infinite;
}

#tier-epico {
    animation: glow-elite 3s ease-in-out infinite;
}

@keyframes glow-gold {
    0%, 100% {
        box-shadow: 0 0 12px rgba(255, 215, 90, 0.4), 0 0 25px rgba(255, 190, 40, 0.6);
    }
    50% {
        box-shadow: 0 0 25px rgba(255, 240, 130, 0.9), 0 0 45px rgba(255, 215, 0, 1);
    }
}

@keyframes glow-elite {
    0%, 100% {
        box-shadow: 0 0 20px rgba(0, 255, 190, 0.8), 0 0 40px rgba(0, 140, 255, 0.9);
    }
    50% {
        box-shadow: 0 0 30px rgba(255, 255, 255, 1), 0 0 70px rgba(0, 255, 220, 1);
    }
}

.background-circle {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, #12161d, #181d26, #10131b, #0b0b11);
    background-repeat: no-repeat;
    background-size: cover;
    z-index: -2;
}

@media (max-width: 900px) {
    .navigation {
        background-color: unset !important;
    }
}