@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600&display=swap');

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

html, body {
  height: 100%;
}

body {
  background-color: #f7f9fc;
  color: #333;
  line-height: 1.6;
  display: flex;
  flex-direction: column;
}

/* ===== HEADER ===== */
.header {
  background: linear-gradient(135deg, #007bff, #00c6ff);
  color: white;
  text-align: center;
  padding: 50px 20px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.header h1 {
  font-size: 2.2rem;
  font-weight: 600;
}

.header p {
  margin-top: 10px;
  font-size: 1.1rem;
  opacity: 0.9;
}

/* ===== MAIN ===== */
.main {
  flex: 1; /* ocupa todo el espacio disponible */
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  padding: 40px 20px;
}

/* ===== GENERADOR ===== */
.password-generator {
  background: white;
  padding: 2.5rem;
  border-radius: 16px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.08);
  width: 90%;
  max-width: 480px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.password-generator:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

/* ===== INPUT Y BOTONES ===== */
.generator-box {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin: 20px 0;
}

#password {
  width: 60%;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 8px;
  font-size: 1rem;
  text-align: center;
}

button {
  background: linear-gradient(135deg, #007bff, #00c6ff);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 10px 15px;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.3s ease, transform 0.2s ease;
}

button:hover {
  background: linear-gradient(135deg, #0056b3, #0099ff);
  transform: scale(1.05);
}

/* ===== OPCIONES ===== */
.options {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 15px;
  margin-top: 20px;
}

/* ===== INDICADOR DE SEGURIDAD ===== */
.strength {
  margin-top: 20px;
  font-weight: bold;
  padding: 10px;
  border-radius: 8px;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.strength.weak { background-color: #ff4d4d; color: white; }
.strength.medium { background-color: #ffcc00; color: #333; }
.strength.strong { background-color: #4CAF50; color: white; }

/* ===== FOOTER SEO ===== */
.footer-seo {
  background: linear-gradient(135deg, #0077ff, #00c6ff);
  color: white;
  padding: 40px 20px;
  text-align: center;
  margin-top: 60px;
  border-radius: 20px 20px 0 0;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.15);
}

/* Texto informativo */
.footer-info {
  max-width: 900px;
  margin: 0 auto 25px;
}

.footer-info h2 {
  font-size: 1.8rem;
  margin-bottom: 12px;
  font-weight: 600;
}

.footer-info p {
  font-size: 1rem;
  line-height: 1.7;
  opacity: 0.95;
}
.footer-info a{
  color: white;
  text-decoration: none;
  font-weight: 600;
}
.footer-info a:hover{
  text-decoration: underline;
  opacity: 0.9;
}

/* Enlaces legales */
#list-links {
  list-style: none;
  margin: 25px 0;
  padding: 0;
  display: flex;
  justify-content: center;
  gap: 25px;
  flex-wrap: wrap;
}

#list-links li a {
  color: white;
  text-decoration: none;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 8px;
  transition: background 0.3s ease, transform 0.2s ease;
}

#list-links li a:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-3px);
}

/* Copyright */
.footer-copy {
  margin-top: 30px;
  font-size: 0.9rem;
  opacity: 0.9;
}
.footer-copy a.footer-link {
  color: white;
  text-decoration: none;
  font-weight: 600;
}

.footer-copy a.footer-link:hover {
  text-decoration: underline;
  opacity: 0.9;
}

/* 📱 RESPONSIVE PARA MÓVILES */
@media (max-width: 768px) {

    /* ===== HEADER ===== */
    .header {
        padding: 35px 15px;
    }

    .header h1 {
        font-size: 1.8rem;
    }

    .header p {
        font-size: 0.95rem;
    }

    /* ===== MAIN ===== */
    .main {
        padding: 20px 15px;
    }

    /* ===== GENERADOR ===== */
    .password-generator {
        padding: 1.8rem;
        width: 100%;
        border-radius: 14px;
    }

    /* ===== INPUT + BOTONES ===== */
    .generator-box {
        flex-direction: column;
        gap: 12px;
    }

    #password {
        width: 100%;
        font-size: 1rem;
        padding: 0.8rem;
    }

    button {
        width: 100%;
        padding: 0.8rem;
        font-size: 0.95rem;
    }

    /* ===== OPCIONES ===== */
    .options {
        flex-direction: column;
        gap: 10px;
        margin-top: 15px;
    }

    .options label {
        font-size: 0.95rem;
    }

    .options input[type="number"] {
        width: 70px;
        padding: 0.4rem;
    }

    /* ===== INDICADOR DE SEGURIDAD ===== */
    .strength {
        font-size: 0.95rem;
        padding: 0.8rem;
        margin-top: 15px;
    }

    /* ===== FOOTER ===== */
    .footer {
        padding: 18px;
        font-size: 0.85rem;
    }

    .footer a {
        font-size: 0.9rem;
    }
}