:root {
    --red: #BE1E2D;
    --gray: #939598;
    --light: #E8E7E3;
    --dark: #0f0f10;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Helvetica, Arial, sans-serif;
}

body {
    height: 100vh;
    overflow: hidden;
    background: var(--dark);
    color: var(--light);
}

/* Fondo */
#bg {
    position: fixed;
    inset: 0;
    background:
        radial-gradient(circle at top, rgba(190, 30, 45, .25), transparent 45%),
        linear-gradient(180deg, #0f0f10, #0a0a0a);
    z-index: 0;
}

#particles-js {
    position: fixed;
    inset: 0;
    z-index: 1;
}

/* Card central */
.card {
    position: relative;
    z-index: 2;

    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;

    padding: 20px;
}

/* Logo */
.logo img {
    width: 180px;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 25px rgba(190,30,45,.4));
}

/* Título */
h1 {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: 4px;
    color: var(--light);
    margin-bottom: 20px;
}

/* Texto */
p {
    max-width: 650px;
    color: var(--gray);
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 30px;
}

/* Botón */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--red);
    color: white;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    transition: .3s;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(190,30,45,.4);
}

/* Frase */
.tagline {
    margin-top: 25px;
    color: var(--gray);
    font-size: .9rem;
    letter-spacing: 2px;
}

/* Footer */
footer {
    position: absolute;
    bottom: 0;
    width: 100%;
    text-align: center;
    z-index: 2;
    padding: 20px;
}

.footer {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    color: var(--gray);
    font-size: .9rem;
}

.item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.item i {
    color: var(--red);
    font-size: 1.1rem;
}

.copy {
    margin-top: 10px;
    color: var(--gray);
    font-size: .8rem;
}