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

body {
    background: #050505;
    color: #ffffff;
    font-family: 'Segoe UI', Arial, sans-serif;
    overflow-x: hidden;
}

.landing-header {
    width: 100%;
    padding: 25px 55px;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 20;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(5, 5, 5, 0.75);
    backdrop-filter: blur(12px);
}

.logo-mini span {
    color: #00ff88;
    font-weight: 800;
    letter-spacing: 2px;
}

.landing-menu {
    display: flex;
    align-items: center;
    gap: 28px;
}

.landing-menu a {
    color: #d7d7d7;
    text-decoration: none;
    font-size: 15px;
    transition: 0.3s;
}

.landing-menu a:hover {
    color: #00ff88;
}

.btn-acceder {
    border: 1px solid #00ff88;
    background: transparent;
    color: #00ff88;
    padding: 9px 22px;
    border-radius: 30px;
    transition: 0.3s;
}

.btn-acceder:hover {
    background: #00ff88;
    color: #050505;
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.55);
}

.hero-section {
    min-height: 100vh;
    background:
        radial-gradient(circle at center, rgba(0, 255, 136, 0.12), transparent 35%),
        linear-gradient(180deg, #050505 0%, #000000 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 120px 20px 60px;
}

.hero-content {
    max-width: 850px;
    animation: fadeUp 1s ease;
}

.logo-main {
    color: #00ff88;
    font-size: 54px;
    font-weight: 900;
    letter-spacing: 5px;
    margin-bottom: 25px;
    text-shadow: 0 0 25px rgba(0, 255, 136, 0.5);
}

.hero-content h1 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 20px;
}

.hero-content p {
    color: #bdbdbd;
    font-size: 19px;
    max-width: 650px;
    margin: 0 auto 35px;
}

.btn-comenzar {
    background: #00ff88;
    color: #050505;
    border: none;
    padding: 16px 55px;
    border-radius: 40px;
    font-weight: 800;
    letter-spacing: 1px;
    transition: 0.3s;
    box-shadow: 0 0 28px rgba(0, 255, 136, 0.45);
}

.btn-comenzar:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 45px rgba(0, 255, 136, 0.75);
}

.info-section {
    padding: 90px 20px;
    text-align: center;
    max-width: 850px;
    margin: auto;
}

.info-section h2 {
    color: #00ff88;
    font-weight: 800;
    margin-bottom: 20px;
}

.info-section p {
    color: #cfcfcf;
    font-size: 17px;
}

.modal-dark {
    background: #0b0b0b;
    color: #ffffff;
    border: 1px solid rgba(0, 255, 136, 0.25);
    border-radius: 22px;
    box-shadow: 0 0 40px rgba(0, 255, 136, 0.12);
}

.option-card {
    width: 100%;
    min-height: 180px;
    border: 1px solid rgba(0, 255, 136, 0.25);
    background: #111111;
    color: #ffffff;
    border-radius: 20px;
    padding: 25px;
    transition: 0.3s;
    text-align: center;
}

.option-card i {
    color: #00ff88;
    font-size: 38px;
    display: block;
    margin-bottom: 12px;
}

.option-card span {
    display: block;
    font-weight: 800;
    font-size: 22px;
    margin-bottom: 8px;
}

.option-card small {
    color: #bdbdbd;
}

.option-card:hover {
    transform: translateY(-5px);
    border-color: #00ff88;
    box-shadow: 0 0 25px rgba(0, 255, 136, 0.25);
}

.input-dark {
    background: #111111;
    color: #ffffff;
    border: 1px solid #2b2b2b;
    border-radius: 12px;
}

.input-dark:focus {
    background: #111111;
    color: #ffffff;
    border-color: #00ff88;
    box-shadow: 0 0 0 0.20rem rgba(0, 255, 136, 0.15);
}

.btn-submit-neon {
    background: #00ff88;
    color: #050505;
    border: none;
    padding: 12px 28px;
    border-radius: 30px;
    font-weight: 800;
    transition: 0.3s;
}

.btn-submit-neon:hover {
    box-shadow: 0 0 25px rgba(0, 255, 136, 0.55);
}

.login-option {
    display: block;
    padding: 16px;
    margin-bottom: 12px;
    border-radius: 14px;
    background: #111111;
    border: 1px solid rgba(0, 255, 136, 0.18);
    color: #ffffff;
    text-decoration: none;
    transition: 0.3s;
}

.login-option:hover {
    color: #00ff88;
    border-color: #00ff88;
    transform: translateX(5px);
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(35px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media(max-width: 768px) {
    .landing-header {
        padding: 20px;
        flex-direction: column;
        gap: 15px;
    }

    .landing-menu {
        gap: 14px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .logo-main {
        font-size: 36px;
    }

    .hero-content h1 {
        font-size: 34px;
    }

    .hero-content p {
        font-size: 16px;
    }
}